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  • 1
    Publication Date: 2015-01-17
    Description: The structure of water near non-polar molecular fragments or surfaces mediates the hydrophobic interactions that underlie a broad range of interfacial, colloidal and biophysical phenomena. Substantial progress over the past decade has improved our understanding of hydrophobic interactions in simple model systems, but most biologically and technologically relevant structures contain non-polar domains in close proximity to polar and charged functional groups. Theories and simulations exploring such nanometre-scale chemical heterogeneity find it can have an important effect, but the influence of this heterogeneity on hydrophobic interactions has not been tested experimentally. Here we report chemical force microscopy measurements on alkyl-functionalized surfaces that reveal a dramatic change in the surfaces' hydrophobic interaction strengths on co-immobilization of amine or guanidine groups. Protonation of amine groups doubles the strength of hydrophobic interactions, and guanidinium groups eliminate measurable hydrophobic interactions in all pH ranges investigated. We see these divergent effects of proximally immobilized cations also in single-molecule measurements on conformationally stable beta-peptides with non-polar subunits located one nanometre from either amine- or guanidine-bearing subunits. Our results demonstrate the importance of nanometre-scale chemical heterogeneity, with hydrophobicity not an intrinsic property of any given non-polar domain but strongly modulated by functional groups located as far away as one nanometre. The judicious placing of charged groups near hydrophobic domains thus provides a strategy for tuning hydrophobic driving forces to optimize molecular recognition or self-assembly processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ma, C Derek -- Wang, Chenxuan -- Acevedo-Velez, Claribel -- Gellman, Samuel H -- Abbott, Nicholas L -- England -- Nature. 2015 Jan 15;517(7534):347-50. doi: 10.1038/nature14018.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, USA. ; 1] Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, USA [2] Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, USA. ; Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25592540" target="_blank"〉PubMed〈/a〉
    Keywords: Ammonium Compounds/chemistry ; Arginine/chemistry ; Buffers ; Cations/chemistry ; Colloids/chemistry ; Ethanolamines/chemistry ; Guanidine/chemistry ; Hydrogen-Ion Concentration ; *Hydrophobic and Hydrophilic Interactions ; Lysine/chemistry ; Methanol/chemistry ; Microscopy, Atomic Force ; Peptides/chemistry ; Protons ; Reproducibility of Results ; Surface Properties
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2015-11-13
    Description: Neuroblastoma is a paediatric malignancy that typically arises in early childhood, and is derived from the developing sympathetic nervous system. Clinical phenotypes range from localized tumours with excellent outcomes to widely metastatic disease in which long-term survival is approximately 40% despite intensive therapy. A previous genome-wide association study identified common polymorphisms at the LMO1 gene locus that are highly associated with neuroblastoma susceptibility and oncogenic addiction to LMO1 in the tumour cells. Here we investigate the causal DNA variant at this locus and the mechanism by which it leads to neuroblastoma tumorigenesis. We first imputed all possible genotypes across the LMO1 locus and then mapped highly associated single nucleotide polymorphism (SNPs) to areas of chromatin accessibility, evolutionary conservation and transcription factor binding sites. We show that SNP rs2168101 G〉T is the most highly associated variant (combined P = 7.47 x 10(-29), odds ratio 0.65, 95% confidence interval 0.60-0.70), and resides in a super-enhancer defined by extensive acetylation of histone H3 lysine 27 within the first intron of LMO1. The ancestral G allele that is associated with tumour formation resides in a conserved GATA transcription factor binding motif. We show that the newly evolved protective TATA allele is associated with decreased total LMO1 expression (P = 0.028) in neuroblastoma primary tumours, and ablates GATA3 binding (P 〈 0.0001). We demonstrate allelic imbalance favouring the G-containing strand in tumours heterozygous for this SNP, as demonstrated both by RNA sequencing (P 〈 0.0001) and reporter assays (P = 0.002). These findings indicate that a recently evolved polymorphism within a super-enhancer element in the first intron of LMO1 influences neuroblastoma susceptibility through differential GATA transcription factor binding and direct modulation of LMO1 expression in cis, and this leads to an oncogenic dependency in tumour cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4775078/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4775078/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oldridge, Derek A -- Wood, Andrew C -- Weichert-Leahey, Nina -- Crimmins, Ian -- Sussman, Robyn -- Winter, Cynthia -- McDaniel, Lee D -- Diamond, Maura -- Hart, Lori S -- Zhu, Shizhen -- Durbin, Adam D -- Abraham, Brian J -- Anders, Lars -- Tian, Lifeng -- Zhang, Shile -- Wei, Jun S -- Khan, Javed -- Bramlett, Kelli -- Rahman, Nazneen -- Capasso, Mario -- Iolascon, Achille -- Gerhard, Daniela S -- Guidry Auvil, Jaime M -- Young, Richard A -- Hakonarson, Hakon -- Diskin, Sharon J -- Look, A Thomas -- Maris, John M -- 100210/Wellcome Trust/United Kingdom -- 100210/Z/12/Z/Wellcome Trust/United Kingdom -- 1K99CA178189/CA/NCI NIH HHS/ -- R00-CA151869/CA/NCI NIH HHS/ -- R01 CA124709/CA/NCI NIH HHS/ -- R01 CA180692/CA/NCI NIH HHS/ -- R01-CA109901/CA/NCI NIH HHS/ -- R01-CA124709/CA/NCI NIH HHS/ -- R01-CA180692/CA/NCI NIH HHS/ -- RC1MD004418/MD/NIMHD NIH HHS/ -- T32 HG000046/HG/NHGRI NIH HHS/ -- T32-HG000046/HG/NHGRI NIH HHS/ -- England -- Nature. 2015 Dec 17;528(7582):418-21. doi: 10.1038/nature15540. Epub 2015 Nov 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA. ; Medical Scientist Training Program, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; Department of Molecular Medicine and Pathology, University of Auckland, Auckland, Auckland Region 1142, New Zealand. ; Department of Pediatric Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02215, USA. ; Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts 02115, USA. ; Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55905, USA. ; Whitehead Institute for Biomedical Research and MIT, Boston, Massachusetts 02142, USA. ; Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA. ; Pediatric Oncology Branch, National Cancer Institute, Bethesda, Maryland 20892, USA. ; Thermo Fisher Scientific, Austin, Texas 78744, USA. ; The Institute of Cancer Research, London SM2 5NG, UK. ; University of Naples Federico II, 80131 Naples, Italy. ; CEINGE Biotecnologie Avanzate, 80131 Naples, Italy. ; Office of Cancer Genomics, National Cancer Institute, Bethesda, Maryland 20892, USA. ; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; Abramson Family Cancer Research Institute, Philadelphia, Pennsylvania 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26560027" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Alleles ; Allelic Imbalance ; Binding Sites ; DNA-Binding Proteins/*genetics ; Enhancer Elements, Genetic/*genetics ; Epigenomics ; GATA3 Transcription Factor/metabolism ; Gene Expression Regulation, Neoplastic/genetics ; Genetic Predisposition to Disease/*genetics ; Genome-Wide Association Study ; Genotype ; Histones/chemistry/metabolism ; Humans ; Introns/genetics ; LIM Domain Proteins/*genetics ; Lysine/metabolism ; Neuroblastoma/*genetics ; Organ Specificity ; Polymorphism, Single Nucleotide/*genetics ; Reproducibility of Results ; Transcription Factors/*genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2015-08-01
    Description: Intracellular energy distribution has attracted much interest and has been proposed to occur in skeletal muscle via metabolite-facilitated diffusion; however, genetic evidence suggests that facilitated diffusion is not critical for normal function. We hypothesized that mitochondrial structure minimizes metabolite diffusion distances in skeletal muscle. Here we demonstrate a mitochondrial reticulum providing a conductive pathway for energy distribution, in the form of the proton-motive force, throughout the mouse skeletal muscle cell. Within this reticulum, we find proteins associated with mitochondrial proton-motive force production preferentially in the cell periphery and proteins that use the proton-motive force for ATP production in the cell interior near contractile and transport ATPases. Furthermore, we show a rapid, coordinated depolarization of the membrane potential component of the proton-motive force throughout the cell in response to spatially controlled uncoupling of the cell interior. We propose that membrane potential conduction via the mitochondrial reticulum is the dominant pathway for skeletal muscle energy distribution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glancy, Brian -- Hartnell, Lisa M -- Malide, Daniela -- Yu, Zu-Xi -- Combs, Christian A -- Connelly, Patricia S -- Subramaniam, Sriram -- Balaban, Robert S -- Intramural NIH HHS/ -- England -- Nature. 2015 Jul 30;523(7562):617-20. doi: 10.1038/nature14614.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892, USA. ; National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26223627" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/metabolism ; Adenosine Triphosphate/biosynthesis/metabolism ; Animals ; Diffusion ; *Energy Metabolism ; Male ; Membrane Potential, Mitochondrial ; Mice ; Mice, Inbred C57BL ; Mitochondria, Muscle/*metabolism ; Mitochondrial Proteins/metabolism ; Muscle, Skeletal/*cytology/*metabolism ; Proton-Motive Force
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    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2015-11-26
    Description: FOXP3(+) regulatory T cells (Treg cells) prevent autoimmunity by limiting the effector activity of T cells that have escaped thymic negative selection or peripheral inactivation. Despite the information available about molecular factors mediating the suppressive function of Treg cells, the relevant cellular events in intact tissues remain largely unexplored, and whether Treg cells prevent activation of self-specific T cells or primarily limit damage from such cells has not been determined. Here we use multiplex, quantitative imaging in mice to show that, within secondary lymphoid tissues, highly suppressive Treg cells expressing phosphorylated STAT5 exist in discrete clusters with rare IL-2-positive T cells that are activated by self-antigens. This local IL-2 induction of STAT5 phosphorylation in Treg cells is part of a feedback circuit that limits further autoimmune responses. Inducible ablation of T cell receptor expression by Treg cells reduces their regulatory capacity and disrupts their localization in clusters, resulting in uncontrolled effector T cell responses. Our data thus reveal that autoreactive T cells are activated to cytokine production on a regular basis, with physically co-clustering T cell receptor-stimulated Treg cells responding in a negative feedback manner to suppress incipient autoimmunity and maintain immune homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4702500/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4702500/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Zhiduo -- Gerner, Michael Y -- Van Panhuys, Nicholas -- Levine, Andrew G -- Rudensky, Alexander Y -- Germain, Ronald N -- R37 AI034206/AI/NIAID NIH HHS/ -- R37AI034206/AI/NIAID NIH HHS/ -- T32GM007739/GM/NIGMS NIH HHS/ -- Z01 AI000403-25/Intramural NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Dec 10;528(7581):225-30. doi: 10.1038/nature16169. Epub 2015 Nov 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lymphocyte Biology Section, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892-1892, USA. ; Howard Hughes Medical Institute, Memorial Sloan-Kettering Cancer Center, New York, New York 10065, USA. ; Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, New York 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26605524" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Movement ; Dendritic Cells/cytology/immunology ; Female ; Gene Expression Regulation ; Homeostasis/*immunology ; Mice ; Mice, Inbred C57BL ; Phenotype ; Protein Transport ; STAT5 Transcription Factor/metabolism ; T-Lymphocytes, Regulatory/*immunology
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  • 5
    Publication Date: 2015-11-10
    Description: Gene expression is regulated by transcription factors (TFs), proteins that recognize short DNA sequence motifs. Such sequences are very common in the human genome, and an important determinant of the specificity of gene expression is the cooperative binding of multiple TFs to closely located motifs. However, interactions between DNA-bound TFs have not been systematically characterized. To identify TF pairs that bind cooperatively to DNA, and to characterize their spacing and orientation preferences, we have performed consecutive affinity-purification systematic evolution of ligands by exponential enrichment (CAP-SELEX) analysis of 9,400 TF-TF-DNA interactions. This analysis revealed 315 TF-TF interactions recognizing 618 heterodimeric motifs, most of which have not been previously described. The observed cooperativity occurred promiscuously between TFs from diverse structural families. Structural analysis of the TF pairs, including a novel crystal structure of MEIS1 and DLX3 bound to their identified recognition site, revealed that the interactions between the TFs were predominantly mediated by DNA. Most TF pair sites identified involved a large overlap between individual TF recognition motifs, and resulted in recognition of composite sites that were markedly different from the individual TF's motifs. Together, our results indicate that the DNA molecule commonly plays an active role in cooperative interactions that define the gene regulatory lexicon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jolma, Arttu -- Yin, Yimeng -- Nitta, Kazuhiro R -- Dave, Kashyap -- Popov, Alexander -- Taipale, Minna -- Enge, Martin -- Kivioja, Teemu -- Morgunova, Ekaterina -- Taipale, Jussi -- England -- Nature. 2015 Nov 19;527(7578):384-8. doi: 10.1038/nature15518. Epub 2015 Nov 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biosciences and Nutrition, Karolinska Institutet, SE 141 83, Sweden. ; European Synchrotron Radiation Facility, 38043 Grenoble, France. ; Genome-Scale Biology Program, University of Helsinki, P.O. Box 63, FI-00014, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26550823" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Binding Sites/genetics ; Crystallography, X-Ray ; DNA/*genetics/*metabolism ; Gene Expression Regulation/genetics ; Humans ; Molecular Sequence Data ; Nucleotide Motifs/genetics ; Reproducibility of Results ; *Substrate Specificity/genetics ; Transcription Factors/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
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    Nature Publishing Group (NPG)
    Publication Date: 2015-08-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tollefson, Jeff -- England -- Nature. 2015 Jul 30;523(7562):510-1. doi: 10.1038/523510a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26223603" target="_blank"〉PubMed〈/a〉
    Keywords: Aircraft ; Atmosphere/chemistry ; Climate Change ; *Expeditions ; *Geography ; Greenland ; Ice Cover/*chemistry ; Models, Theoretical ; Oceans and Seas ; Reproducibility of Results ; *Research ; Seawater/chemistry ; Ships ; United States ; *United States National Aeronautics and Space Administration ; Water/*analysis/chemistry
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2015-03-11
    Description: Immune checkpoint inhibitors result in impressive clinical responses, but optimal results will require combination with each other and other therapies. This raises fundamental questions about mechanisms of non-redundancy and resistance. Here we report major tumour regressions in a subset of patients with metastatic melanoma treated with an anti-CTLA4 antibody (anti-CTLA4) and radiation, and reproduced this effect in mouse models. Although combined treatment improved responses in irradiated and unirradiated tumours, resistance was common. Unbiased analyses of mice revealed that resistance was due to upregulation of PD-L1 on melanoma cells and associated with T-cell exhaustion. Accordingly, optimal response in melanoma and other cancer types requires radiation, anti-CTLA4 and anti-PD-L1/PD-1. Anti-CTLA4 predominantly inhibits T-regulatory cells (Treg cells), thereby increasing the CD8 T-cell to Treg (CD8/Treg) ratio. Radiation enhances the diversity of the T-cell receptor (TCR) repertoire of intratumoral T cells. Together, anti-CTLA4 promotes expansion of T cells, while radiation shapes the TCR repertoire of the expanded peripheral clones. Addition of PD-L1 blockade reverses T-cell exhaustion to mitigate depression in the CD8/Treg ratio and further encourages oligoclonal T-cell expansion. Similarly to results from mice, patients on our clinical trial with melanoma showing high PD-L1 did not respond to radiation plus anti-CTLA4, demonstrated persistent T-cell exhaustion, and rapidly progressed. Thus, PD-L1 on melanoma cells allows tumours to escape anti-CTLA4-based therapy, and the combination of radiation, anti-CTLA4 and anti-PD-L1 promotes response and immunity through distinct mechanisms.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4401634/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4401634/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Twyman-Saint Victor, Christina -- Rech, Andrew J -- Maity, Amit -- Rengan, Ramesh -- Pauken, Kristen E -- Stelekati, Erietta -- Benci, Joseph L -- Xu, Bihui -- Dada, Hannah -- Odorizzi, Pamela M -- Herati, Ramin S -- Mansfield, Kathleen D -- Patsch, Dana -- Amaravadi, Ravi K -- Schuchter, Lynn M -- Ishwaran, Hemant -- Mick, Rosemarie -- Pryma, Daniel A -- Xu, Xiaowei -- Feldman, Michael D -- Gangadhar, Tara C -- Hahn, Stephen M -- Wherry, E John -- Vonderheide, Robert H -- Minn, Andy J -- KL2TR000139/TR/NCATS NIH HHS/ -- P01AI112521/AI/NIAID NIH HHS/ -- P30 CA016672/CA/NCI NIH HHS/ -- P30CA016520/CA/NCI NIH HHS/ -- P50 CA174523/CA/NCI NIH HHS/ -- P50CA174523/CA/NCI NIH HHS/ -- R01 AI105343/AI/NIAID NIH HHS/ -- R01 CA158186/CA/NCI NIH HHS/ -- R01 CA163739/CA/NCI NIH HHS/ -- R01AI105343/AI/NIAID NIH HHS/ -- R01CA158186/CA/NCI NIH HHS/ -- R01CA163739/CA/NCI NIH HHS/ -- R01CA172651/CA/NCI NIH HHS/ -- T32DK007066/DK/NIDDK NIH HHS/ -- U01AI095608/AI/NIAID NIH HHS/ -- U19 AI082630/AI/NIAID NIH HHS/ -- U19AI082630/AI/NIAID NIH HHS/ -- UL1RR024134/RR/NCRR NIH HHS/ -- England -- Nature. 2015 Apr 16;520(7547):373-7. doi: 10.1038/nature14292. Epub 2015 Mar 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; Division of Biostatistics, Department of Public Health Sciences, University of Miami, Miami, Florida 33136, USA. ; 1] Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [3] Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [3] Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [4] Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; 1] Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [2] Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [3] Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA [4] Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25754329" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD274/*antagonists & inhibitors/metabolism ; CTLA-4 Antigen/*antagonists & inhibitors ; Cell Cycle Checkpoints/*drug effects ; Female ; Humans ; Melanoma/*drug therapy/*immunology/pathology/*radiotherapy ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Receptors, Antigen, T-Cell/drug effects/immunology/metabolism ; T-Lymphocytes/cytology/*drug effects/immunology/*radiation effects ; T-Lymphocytes, Regulatory/drug effects/immunology/radiation effects
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2015-02-18
    Description: Enhancers regulate spatiotemporal gene expression and impart cell-specific transcriptional outputs that drive cell identity. Super-enhancers (SEs), also known as stretch-enhancers, are a subset of enhancers especially important for genes associated with cell identity and genetic risk of disease. CD4(+) T cells are critical for host defence and autoimmunity. Here we analysed maps of mouse T-cell SEs as a non-biased means of identifying key regulatory nodes involved in cell specification. We found that cytokines and cytokine receptors were the dominant class of genes exhibiting SE architecture in T cells. Nonetheless, the locus encoding Bach2, a key negative regulator of effector differentiation, emerged as the most prominent T-cell SE, revealing a network in which SE-associated genes critical for T-cell biology are repressed by BACH2. Disease-associated single-nucleotide polymorphisms for immune-mediated disorders, including rheumatoid arthritis, were highly enriched for T-cell SEs versus typical enhancers or SEs in other cell lineages. Intriguingly, treatment of T cells with the Janus kinase (JAK) inhibitor tofacitinib disproportionately altered the expression of rheumatoid arthritis risk genes with SE structures. Together, these results indicate that genes with SE architecture in T cells encompass a variety of cytokines and cytokine receptors but are controlled by a 'guardian' transcription factor, itself endowed with an SE. Thus, enumeration of SEs allows the unbiased determination of key regulatory nodes in T cells, which are preferentially modulated by pharmacological intervention.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4409450/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4409450/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vahedi, Golnaz -- Kanno, Yuka -- Furumoto, Yasuko -- Jiang, Kan -- Parker, Stephen C J -- Erdos, Michael R -- Davis, Sean R -- Roychoudhuri, Rahul -- Restifo, Nicholas P -- Gadina, Massimo -- Tang, Zhonghui -- Ruan, Yijun -- Collins, Francis S -- Sartorelli, Vittorio -- O'Shea, John J -- 105663/Z/14/Z/Wellcome Trust/United Kingdom -- R01 CA186714/CA/NCI NIH HHS/ -- ZIA AR041159-07/Intramural NIH HHS/ -- England -- Nature. 2015 Apr 23;520(7548):558-62. doi: 10.1038/nature14154. Epub 2015 Feb 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lymphocyte Cell Biology Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, Maryland 20892, USA. ; Translational Immunology Section, NIAMS, NIH, Bethesda, Maryland 20892, USA. ; Medical Genomics and Metabolic Genetics Branch, National Human Genome Research Institute, NIH, Bethesda, Maryland 20892, USA. ; Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland 20892, USA. ; The Jackson Laboratory for Genomic Medicine and Department of Genetic and Development Biology, University of Connecticut, Farmington, Connecticut 06030, USA. ; Laboratory of Muscle Stem Cells and Gene Regulation, NIAMS, NIH, Bethesda, Maryland 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25686607" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthritis, Rheumatoid/*genetics/immunology/pathology ; Basic-Leucine Zipper Transcription Factors/metabolism ; Cell Differentiation/genetics ; Cell Lineage/genetics ; Enhancer Elements, Genetic/*genetics ; Gene Expression Regulation/genetics ; Genetic Predisposition to Disease/genetics ; Janus Kinase 3/antagonists & inhibitors ; Mice ; Mice, Inbred C57BL ; Piperidines/pharmacology ; Pyrimidines/pharmacology ; Pyrroles/pharmacology ; RNA, Untranslated/genetics ; T-Lymphocytes, Helper-Inducer/immunology/*metabolism/*pathology ; Transcription, Genetic/genetics ; p300-CBP Transcription Factors/metabolism
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  • 9
    Publication Date: 2015-08-20
    Description: Epigenetic modifiers have fundamental roles in defining unique cellular identity through the establishment and maintenance of lineage-specific chromatin and methylation status. Several DNA modifications such as 5-hydroxymethylcytosine (5hmC) are catalysed by the ten eleven translocation (Tet) methylcytosine dioxygenase family members, and the roles of Tet proteins in regulating chromatin architecture and gene transcription independently of DNA methylation have been gradually uncovered. However, the regulation of immunity and inflammation by Tet proteins independent of their role in modulating DNA methylation remains largely unknown. Here we show that Tet2 selectively mediates active repression of interleukin-6 (IL-6) transcription during inflammation resolution in innate myeloid cells, including dendritic cells and macrophages. Loss of Tet2 resulted in the upregulation of several inflammatory mediators, including IL-6, at late phase during the response to lipopolysaccharide challenge. Tet2-deficient mice were more susceptible to endotoxin shock and dextran-sulfate-sodium-induced colitis, displaying a more severe inflammatory phenotype and increased IL-6 production compared to wild-type mice. IkappaBzeta, an IL-6-specific transcription factor, mediated specific targeting of Tet2 to the Il6 promoter, further indicating opposite regulatory roles of IkappaBzeta at initial and resolution phases of inflammation. For the repression mechanism, independent of DNA methylation and hydroxymethylation, Tet2 recruited Hdac2 and repressed transcription of Il6 via histone deacetylation. We provide mechanistic evidence for the gene-specific transcription repression activity of Tet2 via histone deacetylation and for the prevention of constant transcription activation at the chromatin level for resolving inflammation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4697747/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4697747/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Qian -- Zhao, Kai -- Shen, Qicong -- Han, Yanmei -- Gu, Yan -- Li, Xia -- Zhao, Dezhi -- Liu, Yiqi -- Wang, Chunmei -- Zhang, Xiang -- Su, Xiaoping -- Liu, Juan -- Ge, Wei -- Levine, Ross L -- Li, Nan -- Cao, Xuetao -- P30 CA008748/CA/NCI NIH HHS/ -- R01 CA173636/CA/NCI NIH HHS/ -- England -- Nature. 2015 Sep 17;525(7569):389-93. doi: 10.1038/nature15252. Epub 2015 Aug 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Key Laboratory of Medical Molecular Biology &Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100005, China. ; National Key Laboratory of Medical Immunology &Institute of Immunology, Second Military Medical University, Shanghai 200433, China. ; Human Oncology and Pathogenesis Program and Leukemia Service, Department of Medicine, Memorial Sloan-Kettering Cancer, New York, New York 10016, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26287468" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Chromatin/chemistry/genetics/metabolism ; Colitis/enzymology/immunology/metabolism ; DNA Methylation ; DNA-Binding Proteins/deficiency/*metabolism ; Dendritic Cells/cytology/metabolism ; Down-Regulation/genetics ; Epigenesis, Genetic ; Female ; HEK293 Cells ; Histone Deacetylase 2/*metabolism ; Histones/chemistry/metabolism ; Humans ; I-kappa B Proteins/metabolism ; Inflammation/enzymology/immunology/*metabolism ; Interleukin-6/*antagonists & inhibitors/*biosynthesis/genetics/immunology ; Macrophages/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Promoter Regions, Genetic/genetics ; Proto-Oncogene Proteins/deficiency/*metabolism ; Transcription, Genetic
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  • 10
    Publication Date: 2015-12-18
    Description: The response of the Greenland Ice Sheet (GIS) to changes in temperature during the twentieth century remains contentious, largely owing to difficulties in estimating the spatial and temporal distribution of ice mass changes before 1992, when Greenland-wide observations first became available. The only previous estimates of change during the twentieth century are based on empirical modelling and energy balance modelling. Consequently, no observation-based estimates of the contribution from the GIS to the global-mean sea level budget before 1990 are included in the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Here we calculate spatial ice mass loss around the entire GIS from 1900 to the present using aerial imagery from the 1980s. This allows accurate high-resolution mapping of geomorphic features related to the maximum extent of the GIS during the Little Ice Age at the end of the nineteenth century. We estimate the total ice mass loss and its spatial distribution for three periods: 1900-1983 (75.1 +/- 29.4 gigatonnes per year), 1983-2003 (73.8 +/- 40.5 gigatonnes per year), and 2003-2010 (186.4 +/- 18.9 gigatonnes per year). Furthermore, using two surface mass balance models we partition the mass balance into a term for surface mass balance (that is, total precipitation minus total sublimation minus runoff) and a dynamic term. We find that many areas currently undergoing change are identical to those that experienced considerable thinning throughout the twentieth century. We also reveal that the surface mass balance term shows a considerable decrease since 2003, whereas the dynamic term is constant over the past 110 years. Overall, our observation-based findings show that during the twentieth century the GIS contributed at least 25.0 +/- 9.4 millimetres of global-mean sea level rise. Our result will help to close the twentieth-century sea level budget, which remains crucial for evaluating the reliability of models used to predict global sea level rise.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kjeldsen, Kristian K -- Korsgaard, Niels J -- Bjork, Anders A -- Khan, Shfaqat A -- Box, Jason E -- Funder, Svend -- Larsen, Nicolaj K -- Bamber, Jonathan L -- Colgan, William -- van den Broeke, Michiel -- Siggaard-Andersen, Marie-Louise -- Nuth, Christopher -- Schomacker, Anders -- Andresen, Camilla S -- Willerslev, Eske -- Kjaer, Kurt H -- England -- Nature. 2015 Dec 17;528(7582):396-400. doi: 10.1038/nature16183.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for GeoGenetics, Natural History Museum, University of Copenhagen, Copenhagen 1350, Denmark. ; Department of Earth Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. ; DTU Space-National Space Institute, Technical University of Denmark, Department of Geodesy, Kongens Lyngby 2800, Denmark. ; Geological Survey of Denmark and Greenland, Department of Marine Geology and Glaciology, Copenhagen 1350, Denmark. ; Department of Geoscience, Aarhus University, Aarhus 8000, Denmark. ; Bristol Glaciology Centre, University of Bristol, Bristol BS8 1SS, UK. ; Department of Earth and Space Science and Engineering, York University, Toronto, Ontario M3J 1P3, Canada. ; Institute for Marine and Atmospheric Research, Utrecht University, Utrecht 80005, The Netherlands. ; Department of Geosciences, University of Oslo, Oslo 0316, Norway.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26672555" target="_blank"〉PubMed〈/a〉
    Keywords: Climate Change/*statistics & numerical data ; Greenland ; History, 20th Century ; History, 21st Century ; *Ice Cover ; Models, Theoretical ; Observation ; Photography ; Reproducibility of Results ; Seawater/analysis ; *Spatio-Temporal Analysis ; Temperature
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  • 11
    Publication Date: 2015-04-16
    Description: Oxytocin is important for social interactions and maternal behaviour. However, little is known about when, where and how oxytocin modulates neural circuits to improve social cognition. Here we show how oxytocin enables pup retrieval behaviour in female mice by enhancing auditory cortical pup call responses. Retrieval behaviour required the left but not right auditory cortex, was accelerated by oxytocin in the left auditory cortex, and oxytocin receptors were preferentially expressed in the left auditory cortex. Neural responses to pup calls were lateralized, with co-tuned and temporally precise excitatory and inhibitory responses in the left cortex of maternal but not pup-naive adults. Finally, pairing calls with oxytocin enhanced responses by balancing the magnitude and timing of inhibition with excitation. Our results describe fundamental synaptic mechanisms by which oxytocin increases the salience of acoustic social stimuli. Furthermore, oxytocin-induced plasticity provides a biological basis for lateralization of auditory cortical processing.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4409554/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4409554/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marlin, Bianca J -- Mitre, Mariela -- D'amour, James A -- Chao, Moses V -- Froemke, Robert C -- DC009635/DC/NIDCD NIH HHS/ -- DC12557/DC/NIDCD NIH HHS/ -- P30 CA016087/CA/NCI NIH HHS/ -- R00 DC009635/DC/NIDCD NIH HHS/ -- R01 DC012557/DC/NIDCD NIH HHS/ -- T32 MH019524/MH/NIMH NIH HHS/ -- England -- Nature. 2015 Apr 23;520(7548):499-504. doi: 10.1038/nature14402. Epub 2015 Apr 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Skirball Institute for Biomolecular Medicine, New York University School of Medicine, New York, New York 10016, USA [2] Neuroscience Institute, New York University School of Medicine, New York, New York 10016, USA [3] Department of Otolaryngology, New York University School of Medicine, New York, New York 10016, USA [4] Department of Neuroscience and Physiology, New York University School of Medicine, New York, New York 10016, USA. ; 1] Skirball Institute for Biomolecular Medicine, New York University School of Medicine, New York, New York 10016, USA [2] Neuroscience Institute, New York University School of Medicine, New York, New York 10016, USA [3] Department of Otolaryngology, New York University School of Medicine, New York, New York 10016, USA [4] Department of Neuroscience and Physiology, New York University School of Medicine, New York, New York 10016, USA [5] Department of Cell Biology, New York University School of Medicine, New York, New York 10016, USA [6] Department of Psychiatry, New York University School of Medicine, New York, New York 10016, USA. ; 1] Skirball Institute for Biomolecular Medicine, New York University School of Medicine, New York, New York 10016, USA [2] Neuroscience Institute, New York University School of Medicine, New York, New York 10016, USA [3] Department of Neuroscience and Physiology, New York University School of Medicine, New York, New York 10016, USA [4] Department of Cell Biology, New York University School of Medicine, New York, New York 10016, USA [5] Department of Psychiatry, New York University School of Medicine, New York, New York 10016, USA [6] Center for Neural Science, New York University, New York, New York 10003, USA. ; 1] Skirball Institute for Biomolecular Medicine, New York University School of Medicine, New York, New York 10016, USA [2] Neuroscience Institute, New York University School of Medicine, New York, New York 10016, USA [3] Department of Otolaryngology, New York University School of Medicine, New York, New York 10016, USA [4] Department of Neuroscience and Physiology, New York University School of Medicine, New York, New York 10016, USA [5] Center for Neural Science, New York University, New York, New York 10003, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25874674" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Animals ; Animals, Newborn ; Auditory Cortex/cytology/*physiology ; Auditory Perception/physiology ; Evoked Potentials, Auditory ; Female ; Male ; Maternal Behavior/*physiology ; Mice ; Mice, Inbred C57BL ; Neural Inhibition/*physiology ; Neuronal Plasticity ; Oxytocin/*metabolism ; Receptors, Oxytocin/metabolism ; Sexual Abstinence ; Vocalization, Animal
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  • 12
    Publication Date: 2015-07-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maron, Martine -- Gordon, Ascelin -- Mackey, Brendan G -- Possingham, Hugh P -- Watson, James E M -- England -- Nature. 2015 Jul 23;523(7561):401-3. doi: 10.1038/523401a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Geography, Planning and Environmental Management at the University of Queensland, Brisbane, Australia. ; School of Global, Urban and Social Studies at RMIT University, Melbourne, Victoria. ; Griffith University, Gold Coast, Australia. ; University of Queensland, Brisbane, Australia, and professor of conservation decisions at Imperial College London, UK. ; University of Queensland, Brisbane, Australia, and director of the Science and Research Initiative at the Wildlife Conservation Society.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26201581" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Conservation of Natural Resources/economics/*methods/statistics & numerical data ; Reproducibility of Results
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  • 13
    Publication Date: 2015-11-19
    Description: Taste is responsible for evaluating the nutritious content of food, guiding essential appetitive behaviours, preventing the ingestion of toxic substances, and helping to ensure the maintenance of a healthy diet. Sweet and bitter are two of the most salient sensory percepts for humans and other animals; sweet taste allows the identification of energy-rich nutrients whereas bitter warns against the intake of potentially noxious chemicals. In mammals, information from taste receptor cells in the tongue is transmitted through multiple neural stations to the primary gustatory cortex in the brain. Recent imaging studies have shown that sweet and bitter are represented in the primary gustatory cortex by neurons organized in a spatial map, with each taste quality encoded by distinct cortical fields. Here we demonstrate that by manipulating the brain fields representing sweet and bitter taste we directly control an animal's internal representation, sensory perception, and behavioural actions. These results substantiate the segregation of taste qualities in the cortex, expose the innate nature of appetitive and aversive taste responses, and illustrate the ability of gustatory cortex to recapitulate complex behaviours in the absence of sensory input.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4712381/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4712381/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peng, Yueqing -- Gillis-Smith, Sarah -- Jin, Hao -- Trankner, Dimitri -- Ryba, Nicholas J P -- Zuker, Charles S -- DA035025/DA/NIDA NIH HHS/ -- R01 DA035025/DA/NIDA NIH HHS/ -- Howard Hughes Medical Institute/ -- Intramural NIH HHS/ -- England -- Nature. 2015 Nov 26;527(7579):512-5. doi: 10.1038/nature15763. Epub 2015 Nov 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Columbia College of Physicians and Surgeons, Columbia University, New York, New York 10032, USA. ; Departments of Biochemistry and Molecular Biophysics, Columbia College of Physicians and Surgeons, Columbia University, New York, New York 10032, USA. ; Department of Neuroscience, Columbia College of Physicians and Surgeons, Columbia University, New York, New York 10032, USA. ; HHMI/Janelia Farm Research Campus, 19700 Helix Drive, Ashburn, Virginia 20147, USA. ; National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26580015" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Appetitive Behavior/*physiology/radiation effects ; Avoidance Learning/*physiology/radiation effects ; Brain Mapping ; Cerebral Cortex/*cytology/*physiology/radiation effects ; Discrimination (Psychology)/physiology ; Male ; Mice ; Mice, Inbred C57BL ; Optogenetics ; Stereotaxic Techniques ; Taste/*physiology ; Taste Perception/*physiology/radiation effects ; Wakefulness/*physiology
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  • 14
    Publication Date: 2015-01-30
    Description: Most present-generation climate models simulate an increase in global-mean surface temperature (GMST) since 1998, whereas observations suggest a warming hiatus. It is unclear to what extent this mismatch is caused by incorrect model forcing, by incorrect model response to forcing or by random factors. Here we analyse simulations and observations of GMST from 1900 to 2012, and show that the distribution of simulated 15-year trends shows no systematic bias against the observations. Using a multiple regression approach that is physically motivated by surface energy balance, we isolate the impact of radiative forcing, climate feedback and ocean heat uptake on GMST--with the regression residual interpreted as internal variability--and assess all possible 15- and 62-year trends. The differences between simulated and observed trends are dominated by random internal variability over the shorter timescale and by variations in the radiative forcings used to drive models over the longer timescale. For either trend length, spread in simulated climate feedback leaves no traceable imprint on GMST trends or, consequently, on the difference between simulations and observations. The claim that climate models systematically overestimate the response to radiative forcing from increasing greenhouse gas concentrations therefore seems to be unfounded.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marotzke, Jochem -- Forster, Piers M -- England -- Nature. 2015 Jan 29;517(7536):565-70. doi: 10.1038/nature14117.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Meteorology, Bundesstrasse 53, 20146 Hamburg, Germany. ; School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25631444" target="_blank"〉PubMed〈/a〉
    Keywords: Bias (Epidemiology) ; *Feedback ; Global Warming/history/*statistics & numerical data ; History, 20th Century ; History, 21st Century ; *Models, Theoretical ; Multivariate Analysis ; Regression Analysis ; Reproducibility of Results ; *Temperature ; Time Factors
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  • 15
    Publication Date: 2015-05-21
    Description: The lymphatic vasculature is a blind-ended network crucial for tissue-fluid homeostasis, immune surveillance and lipid absorption from the gut. Recent evidence has proposed an entirely venous-derived mammalian lymphatic system. By contrast, here we show that cardiac lymphatic vessels in mice have a heterogeneous cellular origin, whereby formation of at least part of the cardiac lymphatic network is independent of sprouting from veins. Multiple Cre-lox-based lineage tracing revealed a potential contribution from the putative haemogenic endothelium during development, and discrete lymphatic endothelial progenitor populations were confirmed by conditional knockout of Prox1 in Tie2+ and Vav1+ compartments. In the adult heart, myocardial infarction promoted a significant lymphangiogenic response, which was augmented by treatment with VEGF-C, resulting in improved cardiac function. These data prompt the re-evaluation of a century-long debate on the origin of lymphatic vessels and suggest that lymphangiogenesis may represent a therapeutic target to promote cardiac repair following injury.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4458138/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4458138/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klotz, Linda -- Norman, Sophie -- Vieira, Joaquim Miguel -- Masters, Megan -- Rohling, Mala -- Dube, Karina N -- Bollini, Sveva -- Matsuzaki, Fumio -- Carr, Carolyn A -- Riley, Paul R -- CH/11/1/28798/British Heart Foundation/United Kingdom -- PG/13/34/30216/British Heart Foundation/United Kingdom -- RG/08/003/25264/British Heart Foundation/United Kingdom -- RM/13/3/30159/British Heart Foundation/United Kingdom -- British Heart Foundation/United Kingdom -- Wellcome Trust/United Kingdom -- England -- Nature. 2015 Jun 4;522(7554):62-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25992544" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Lineage ; Endothelial Cells/cytology/metabolism ; Female ; Heart/physiology/physiopathology ; Homeodomain Proteins/metabolism ; *Lymphangiogenesis ; Lymphatic Vessels/*cytology/*injuries/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Myocardial Infarction/metabolism/physiopathology ; Myocardium/*cytology/metabolism ; Proto-Oncogene Proteins c-vav/metabolism ; Receptor, Macrophage Colony-Stimulating Factor/metabolism ; Receptor, Platelet-Derived Growth Factor beta/metabolism ; Receptor, TIE-2/metabolism ; Spatio-Temporal Analysis ; Tumor Suppressor Proteins/deficiency/metabolism ; Vascular Endothelial Growth Factor C/metabolism ; Veins/cytology ; Yolk Sac/cytology
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  • 16
    Publication Date: 2015-02-20
    Description: Higher-order chromatin structure is emerging as an important regulator of gene expression. Although dynamic chromatin structures have been identified in the genome, the full scope of chromatin dynamics during mammalian development and lineage specification remains to be determined. By mapping genome-wide chromatin interactions in human embryonic stem (ES) cells and four human ES-cell-derived lineages, we uncover extensive chromatin reorganization during lineage specification. We observe that although self-associating chromatin domains are stable during differentiation, chromatin interactions both within and between domains change in a striking manner, altering 36% of active and inactive chromosomal compartments throughout the genome. By integrating chromatin interaction maps with haplotype-resolved epigenome and transcriptome data sets, we find widespread allelic bias in gene expression correlated with allele-biased chromatin states of linked promoters and distal enhancers. Our results therefore provide a global view of chromatin dynamics and a resource for studying long-range control of gene expression in distinct human cell lineages.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4515363/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4515363/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dixon, Jesse R -- Jung, Inkyung -- Selvaraj, Siddarth -- Shen, Yin -- Antosiewicz-Bourget, Jessica E -- Lee, Ah Young -- Ye, Zhen -- Kim, Audrey -- Rajagopal, Nisha -- Xie, Wei -- Diao, Yarui -- Liang, Jing -- Zhao, Huimin -- Lobanenkov, Victor V -- Ecker, Joseph R -- Thomson, James A -- Ren, Bing -- R01 ES024984/ES/NIEHS NIH HHS/ -- T32 GM007198/GM/NIGMS NIH HHS/ -- U01 ES017166/ES/NIEHS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Feb 19;518(7539):331-6. doi: 10.1038/nature14222.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Ludwig Institute for Cancer Research, 9500 Gilman Drive, La Jolla, California 92093-0653, USA [2] Medical Scientist Training Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA. ; Ludwig Institute for Cancer Research, 9500 Gilman Drive, La Jolla, California 92093-0653, USA. ; 1] Ludwig Institute for Cancer Research, 9500 Gilman Drive, La Jolla, California 92093-0653, USA [2] Bioinformatics and Systems Biology Graduate Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA. ; The Morgridge Institute for Research, 309 North Orchard Street, Madison, Wisconsin 53715, USA. ; Tsinghua University-Peking University Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China. ; Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA. ; Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, Twinbrook I NIAID Facility, Room 1417, 5640 Fishers Lane, Rockville, Maryland 20852, USA. ; Howard Hughes Medical Institute, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, California 92037, USA. ; 1] The Morgridge Institute for Research, 309 North Orchard Street, Madison, Wisconsin 53715, USA [2] Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53706, USA [3] Department of Molecular, Cellular, and Developmental Biology, University of California Santa Barbara, Santa Barbara, California 93106, USA. ; 1] Ludwig Institute for Cancer Research, 9500 Gilman Drive, La Jolla, California 92093-0653, USA [2] University of California, San Diego School of Medicine, Department of Cellular and Molecular Medicine, Institute of Genomic Medicine, 9500 Gilman Drive, La Jolla, California 92093-0653, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25693564" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Allelic Imbalance/genetics ; *Cell Differentiation/genetics ; Cell Lineage/genetics ; Chromatin/*chemistry/genetics/*metabolism ; *Chromatin Assembly and Disassembly/genetics ; Embryonic Stem Cells/*cytology/*metabolism ; Enhancer Elements, Genetic/genetics ; Epigenesis, Genetic/*genetics ; Epigenomics ; Gene Regulatory Networks ; Humans ; Promoter Regions, Genetic/genetics ; Reproducibility of Results
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  • 17
    Publication Date: 2015-02-25
    Description: Hypothalamic pro-opiomelanocortin (POMC) neurons promote satiety. Cannabinoid receptor 1 (CB1R) is critical for the central regulation of food intake. Here we test whether CB1R-controlled feeding in sated mice is paralleled by decreased activity of POMC neurons. We show that chemical promotion of CB1R activity increases feeding, and notably, CB1R activation also promotes neuronal activity of POMC cells. This paradoxical increase in POMC activity was crucial for CB1R-induced feeding, because designer-receptors-exclusively-activated-by-designer-drugs (DREADD)-mediated inhibition of POMC neurons diminishes, whereas DREADD-mediated activation of POMC neurons enhances CB1R-driven feeding. The Pomc gene encodes both the anorexigenic peptide alpha-melanocyte-stimulating hormone, and the opioid peptide beta-endorphin. CB1R activation selectively increases beta-endorphin but not alpha-melanocyte-stimulating hormone release in the hypothalamus, and systemic or hypothalamic administration of the opioid receptor antagonist naloxone blocks acute CB1R-induced feeding. These processes involve mitochondrial adaptations that, when blocked, abolish CB1R-induced cellular responses and feeding. Together, these results uncover a previously unsuspected role of POMC neurons in the promotion of feeding by cannabinoids.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4496586/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4496586/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koch, Marco -- Varela, Luis -- Kim, Jae Geun -- Kim, Jung Dae -- Hernandez-Nuno, Francisco -- Simonds, Stephanie E -- Castorena, Carlos M -- Vianna, Claudia R -- Elmquist, Joel K -- Morozov, Yury M -- Rakic, Pasko -- Bechmann, Ingo -- Cowley, Michael A -- Szigeti-Buck, Klara -- Dietrich, Marcelo O -- Gao, Xiao-Bing -- Diano, Sabrina -- Horvath, Tamas L -- DP1 DK098058/DK/NIDDK NIH HHS/ -- DP1DK098058/DK/NIDDK NIH HHS/ -- P01 NS062686/NS/NINDS NIH HHS/ -- R01 AG040236/AG/NIA NIH HHS/ -- R01 DA023999/DA/NIDA NIH HHS/ -- R01AG040236/AG/NIA NIH HHS/ -- R01DK097566/DK/NIDDK NIH HHS/ -- R37 DK053301/DK/NIDDK NIH HHS/ -- England -- Nature. 2015 Mar 5;519(7541):45-50. doi: 10.1038/nature14260. Epub 2015 Feb 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Institute of Anatomy, University of Leipzig, 04103 Leipzig, Germany. ; Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; 1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; Obesity &Diabetes Institute, Department of Physiology, Monash University, Clayton, Victoria 3800, Australia. ; Division of Endocrinology &Metabolism, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; 1] Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Kavli Institute for Neuroscience, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; Institute of Anatomy, University of Leipzig, 04103 Leipzig, Germany. ; 1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; 1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA [3] Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA. ; 1] Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06520, USA [2] Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA [3] Department of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06520, USA [4] Kavli Institute for Neuroscience, Yale University School of Medicine, New Haven, Connecticut 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25707796" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cannabinoids/*pharmacology ; Eating/*drug effects/*physiology ; Energy Metabolism/drug effects ; Hypothalamus/*cytology/drug effects/physiology ; Ion Channels/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mitochondria/drug effects/metabolism ; Mitochondrial Proteins/metabolism ; Naloxone/pharmacology ; Neurons/*drug effects/*metabolism ; Pro-Opiomelanocortin/*metabolism ; Receptor, Cannabinoid, CB1/agonists/metabolism ; Satiety Response/drug effects/physiology ; alpha-MSH/secretion ; beta-Endorphin/metabolism
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  • 18
    Publication Date: 2015-04-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Victor, David G -- England -- Nature. 2015 Apr 2;520(7545):27-9. doi: 10.1038/520027a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory on International Law and Regulation, University of California, San Diego, USA. He is also chairman of the Global Agenda Council on Governance for Sustainability at the World Economic Forum.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25832390" target="_blank"〉PubMed〈/a〉
    Keywords: Advisory Committees/*organization & administration ; *Climate Change/statistics & numerical data ; Consensus ; Environmental Policy/legislation & jurisprudence/*trends ; *Policy Making ; Reproducibility of Results ; *Research Report ; Social Sciences/*trends ; Time Factors ; Uncertainty
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  • 19
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2015-01-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abbott, Alison -- England -- Nature. 2015 Jan 29;517(7536):537-8. doi: 10.1038/517537a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25631423" target="_blank"〉PubMed〈/a〉
    Keywords: *Decision Making/physiology ; Humans ; Psychology/standards ; Reproducibility of Results ; *Unconscious (Psychology)
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  • 20
    Publication Date: 2015-08-20
    Description: Understanding the development and function of an organ requires the characterization of all of its cell types. Traditional methods for visualizing and isolating subpopulations of cells are based on messenger RNA or protein expression of only a few known marker genes. The unequivocal identification of a specific marker gene, however, poses a major challenge, particularly if this cell type is rare. Identifying rare cell types, such as stem cells, short-lived progenitors, cancer stem cells, or circulating tumour cells, is crucial to acquire a better understanding of normal or diseased tissue biology. To address this challenge we first sequenced the transcriptome of hundreds of randomly selected cells from mouse intestinal organoids, cultured self-organizing epithelial structures that contain all cell lineages of the mammalian intestine. Organoid buds, like intestinal crypts, harbour stem cells that continuously differentiate into a variety of cell types, occurring at widely different abundances. Since available computational methods can only resolve more abundant cell types, we developed RaceID, an algorithm for rare cell type identification in complex populations of single cells. We demonstrate that this algorithm can resolve cell types represented by only a single cell in a population of randomly sampled organoid cells. We use this algorithm to identify Reg4 as a novel marker for enteroendocrine cells, a rare population of hormone-producing intestinal cells. Next, we use Reg4 expression to enrich for these rare cells and investigate the heterogeneity within this population. RaceID confirmed the existence of known enteroendocrine lineages, and moreover discovered novel subtypes, which we subsequently validated in vivo. Having validated RaceID we then applied the algorithm to ex vivo-isolated Lgr5-positive stem cells and their direct progeny. We find that Lgr5-positive cells represent a homogenous abundant population of stem cells mixed with a rare population of Lgr5-positive secretory cells. We envision broad applicability of our method for discovering rare cell types and the corresponding marker genes in healthy and diseased organs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grun, Dominic -- Lyubimova, Anna -- Kester, Lennart -- Wiebrands, Kay -- Basak, Onur -- Sasaki, Nobuo -- Clevers, Hans -- van Oudenaarden, Alexander -- England -- Nature. 2015 Sep 10;525(7568):251-5. doi: 10.1038/nature14966. Epub 2015 Aug 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences), 3584 CT Utrecht, The Netherlands. ; University Medical Center Utrecht, Cancer Genomics Netherlands, 3584 CG Utrecht, The Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26287467" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Biomarkers/analysis ; Cell Differentiation/genetics ; Cell Lineage ; Cell Separation/*methods ; In Situ Hybridization, Fluorescence ; Intestine, Small/*cytology ; Mice ; Neoplasm Proteins/genetics ; Organoids/cytology ; Paneth Cells/cytology/metabolism ; RNA, Messenger/*genetics ; Receptors, G-Protein-Coupled/genetics ; Reproducibility of Results ; *Sequence Analysis, RNA ; *Single-Cell Analysis ; Stem Cells/cytology/metabolism ; Transcriptome/genetics
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  • 21
    Publication Date: 2015-09-30
    Description: Haematopoietic stem cells (HSCs) reside in a perivascular niche but the specific location of this niche remains controversial. HSCs are rare and few can be found in thin tissue sections or upon live imaging, making it difficult to comprehensively localize dividing and non-dividing HSCs. Here, using a green fluorescent protein (GFP) knock-in for the gene Ctnnal1 in mice (hereafter denoted as alpha-catulin(GFP)), we discover that alpha-catulin(GFP) is expressed by only 0.02% of bone marrow haematopoietic cells, including almost all HSCs. We find that approximately 30% of alpha-catulin-GFP(+)c-kit(+) cells give long-term multilineage reconstitution of irradiated mice, indicating that alpha-catulin-GFP(+)c-kit(+) cells are comparable in HSC purity to cells obtained using the best markers currently available. We optically cleared the bone marrow to perform deep confocal imaging, allowing us to image thousands of alpha-catulin-GFP(+)c-kit(+) cells and to digitally reconstruct large segments of bone marrow. The distribution of alpha-catulin-GFP(+)c-kit(+) cells indicated that HSCs were more common in central marrow than near bone surfaces, and in the diaphysis relative to the metaphysis. Nearly all HSCs contacted leptin receptor positive (Lepr(+)) and Cxcl12(high) niche cells, and approximately 85% of HSCs were within 10 mum of a sinusoidal blood vessel. Most HSCs, both dividing (Ki-67(+)) and non-dividing (Ki-67(-)), were distant from arterioles, transition zone vessels, and bone surfaces. Dividing and non-dividing HSCs thus reside mainly in perisinusoidal niches with Lepr(+)Cxcl12(high) cells throughout the bone marrow.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Acar, Melih -- Kocherlakota, Kiranmai S -- Murphy, Malea M -- Peyer, James G -- Oguro, Hideyuki -- Inra, Christopher N -- Jaiyeola, Christabel -- Zhao, Zhiyu -- Luby-Phelps, Katherine -- Morrison, Sean J -- HL097760/HL/NHLBI NIH HHS/ -- R01 DK100848/DK/NIDDK NIH HHS/ -- S10 RR029731/RR/NCRR NIH HHS/ -- S10RR029731/RR/NCRR NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Oct 1;526(7571):126-30. doi: 10.1038/nature15250. Epub 2015 Sep 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Children's Research Institute and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26416744" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arterioles/metabolism ; Biomarkers/analysis/metabolism ; Bone Marrow/*anatomy & histology ; Cell Division ; Cell Lineage ; Chemokine CXCL12/metabolism ; Diaphyses/cytology/metabolism ; Female ; Hematopoietic Stem Cells/cytology/*metabolism ; Image Processing, Computer-Assisted ; Male ; Mice ; Mice, Inbred C57BL ; Microscopy, Confocal ; *Molecular Imaging ; Proto-Oncogene Proteins c-kit/metabolism ; Receptors, Leptin/metabolism ; Stem Cell Niche ; Tibia/anatomy & histology/blood supply/cytology ; alpha Catenin/analysis/metabolism
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  • 22
    Publication Date: 2015-12-18
    Description: Tandem repeat proteins, which are formed by repetition of modular units of protein sequence and structure, play important biological roles as macromolecular binding and scaffolding domains, enzymes, and building blocks for the assembly of fibrous materials. The modular nature of repeat proteins enables the rapid construction and diversification of extended binding surfaces by duplication and recombination of simple building blocks. The overall architecture of tandem repeat protein structures--which is dictated by the internal geometry and local packing of the repeat building blocks--is highly diverse, ranging from extended, super-helical folds that bind peptide, DNA, and RNA partners, to closed and compact conformations with internal cavities suitable for small molecule binding and catalysis. Here we report the development and validation of computational methods for de novo design of tandem repeat protein architectures driven purely by geometric criteria defining the inter-repeat geometry, without reference to the sequences and structures of existing repeat protein families. We have applied these methods to design a series of closed alpha-solenoid repeat structures (alpha-toroids) in which the inter-repeat packing geometry is constrained so as to juxtapose the amino (N) and carboxy (C) termini; several of these designed structures have been validated by X-ray crystallography. Unlike previous approaches to tandem repeat protein engineering, our design procedure does not rely on template sequence or structural information taken from natural repeat proteins and hence can produce structures unlike those seen in nature. As an example, we have successfully designed and validated closed alpha-solenoid repeats with a left-handed helical architecture that--to our knowledge--is not yet present in the protein structure database.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4727831/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4727831/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doyle, Lindsey -- Hallinan, Jazmine -- Bolduc, Jill -- Parmeggiani, Fabio -- Baker, David -- Stoddard, Barry L -- Bradley, Philip -- R01 GM049857/GM/NIGMS NIH HHS/ -- R01 GM115545/GM/NIGMS NIH HHS/ -- R01GM49857/GM/NIGMS NIH HHS/ -- R21 GM106117/GM/NIGMS NIH HHS/ -- R21GM106117/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Dec 24;528(7583):585-8. doi: 10.1038/nature16191. Epub 2015 Dec 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Basic Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue N., Seattle, Washington 98109, USA. ; Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA. ; Institute for Protein Design, University of Washington, Seattle, Washington 98195, USA. ; Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195, USA. ; Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue N., Seattle, Washington 98019, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26675735" target="_blank"〉PubMed〈/a〉
    Keywords: *Amino Acid Motifs ; *Bioengineering ; *Computer Simulation ; Crystallography, X-Ray ; Databases, Protein ; Models, Molecular ; *Protein Structure, Secondary ; Proteins/*chemistry ; Reproducibility of Results
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  • 23
    Publication Date: 2015-11-05
    Description: Anxiety-related conditions are among the most difficult neuropsychiatric diseases to treat pharmacologically, but respond to cognitive therapies. There has therefore been interest in identifying relevant top-down pathways from cognitive control regions in medial prefrontal cortex (mPFC). Identification of such pathways could contribute to our understanding of the cognitive regulation of affect, and provide pathways for intervention. Previous studies have suggested that dorsal and ventral mPFC subregions exert opposing effects on fear, as do subregions of other structures. However, precise causal targets for top-down connections among these diverse possibilities have not been established. Here we show that the basomedial amygdala (BMA) represents the major target of ventral mPFC in amygdala in mice. Moreover, BMA neurons differentiate safe and aversive environments, and BMA activation decreases fear-related freezing and high-anxiety states. Lastly, we show that the ventral mPFC-BMA projection implements top-down control of anxiety state and learned freezing, both at baseline and in stress-induced anxiety, defining a broadly relevant new top-down behavioural regulation pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adhikari, Avishek -- Lerner, Talia N -- Finkelstein, Joel -- Pak, Sally -- Jennings, Joshua H -- Davidson, Thomas J -- Ferenczi, Emily -- Gunaydin, Lisa A -- Mirzabekov, Julie J -- Ye, Li -- Kim, Sung-Yon -- Lei, Anna -- Deisseroth, Karl -- 1F32MH105053-01/MH/NIMH NIH HHS/ -- K99 MH106649/MH/NIMH NIH HHS/ -- K99MH106649/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Nov 12;527(7577):179-85. doi: 10.1038/nature15698. Epub 2015 Nov 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering, Stanford University, Stanford, California 94305, USA. ; CNC Program, Stanford University, Stanford, California 94304, USA. ; Neurosciences Program, Stanford University, Stanford, California 94305, USA. ; Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California 94305, USA. ; Howard Hughes Medical Institute, Stanford University, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26536109" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/cytology/*physiology ; Animals ; Anxiety/*physiopathology/psychology ; Extinction, Psychological/physiology ; Fear/*physiology/psychology ; Female ; Freezing Reaction, Cataleptic/physiology ; Learning/physiology ; Male ; Mice ; Mice, Inbred C57BL ; Neural Pathways/*physiology ; Prefrontal Cortex/cytology/physiology ; Stress, Psychological/physiopathology
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  • 24
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2015-12-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sohn, Emily -- England -- Nature. 2015 Dec 17;528(7582):S120-2. doi: 10.1038/528S120a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26672781" target="_blank"〉PubMed〈/a〉
    Keywords: Early Diagnosis ; False Positive Reactions ; Humans ; Male ; Mass Screening/trends ; Prognosis ; Prostate-Specific Antigen/*blood ; Prostatic Neoplasms/*blood/*diagnosis/psychology ; Reproducibility of Results ; Risk Assessment ; Stress, Psychological/etiology/prevention & control
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  • 25
    Publication Date: 2015-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hicks, Diana -- Wouters, Paul -- Waltman, Ludo -- de Rijcke, Sarah -- Rafols, Ismael -- England -- Nature. 2015 Apr 23;520(7548):429-31. doi: 10.1038/520429a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Georgia Institute of Technology, Atlanta, Georgia, USA. ; Centre for Science and Technology Studies, Leiden University, the Netherlands. ; Spanish National Research Council and the Polytechnic University of Valencia, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25903611" target="_blank"〉PubMed〈/a〉
    Keywords: Access to Information ; Achievement ; *Bibliometrics/history ; Blogging/utilization ; Career Mobility ; *Guidelines as Topic ; History, 20th Century ; History, 21st Century ; Journal Impact Factor/history ; Reproducibility of Results ; Research/*standards/*statistics & numerical data ; Research Personnel/*standards/statistics & numerical data
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  • 26
    Publication Date: 2015-06-19
    Description: Stress is considered a potent environmental risk factor for many behavioural abnormalities, including anxiety and mood disorders. Animal models can exhibit limited but quantifiable behavioural impairments resulting from chronic stress, including deficits in motivation, abnormal responses to behavioural challenges, and anhedonia. The hippocampus is thought to negatively regulate the stress response and to mediate various cognitive and mnemonic aspects of stress-induced impairments, although the neuronal underpinnings sufficient to support behavioural improvements are largely unknown. Here we acutely rescue stress-induced depression-related behaviours in mice by optogenetically reactivating dentate gyrus cells that were previously active during a positive experience. A brain-wide histological investigation, coupled with pharmacological and projection-specific optogenetic blockade experiments, identified glutamatergic activity in the hippocampus-amygdala-nucleus-accumbens pathway as a candidate circuit supporting the acute rescue. Finally, chronically reactivating hippocampal cells associated with a positive memory resulted in the rescue of stress-induced behavioural impairments and neurogenesis at time points beyond the light stimulation. Together, our data suggest that activating positive memories artificially is sufficient to suppress depression-like behaviours and point to dentate gyrus engram cells as potential therapeutic nodes for intervening with maladaptive behavioural states.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ramirez, Steve -- Liu, Xu -- MacDonald, Christopher J -- Moffa, Anthony -- Zhou, Joanne -- Redondo, Roger L -- Tonegawa, Susumu -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Jun 18;522(7556):335-9. doi: 10.1038/nature14514.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉RIKEN-MIT Center for Neural Circuit Genetics at the Picower Institute for Learning and Memory, Department of Biology and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. ; 1] RIKEN-MIT Center for Neural Circuit Genetics at the Picower Institute for Learning and Memory, Department of Biology and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [2] Howard Hughes Medical Institute, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26085274" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/cytology/metabolism/physiology ; Animals ; Behavior, Animal ; Depression/*psychology/*therapy ; Female ; Hippocampus/cytology/physiology ; Male ; Memory/*physiology ; Mice ; Mice, Inbred C57BL ; Neural Pathways ; Nucleus Accumbens/cytology/metabolism/physiology ; Optogenetics ; Pleasure/*physiology ; Proto-Oncogene Proteins c-fos/metabolism ; Stress, Psychological/psychology ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 27
    Publication Date: 2015-12-10
    Description: Inactivation of the TNFAIP3 gene, encoding the A20 protein, is associated with critical inflammatory diseases including multiple sclerosis, rheumatoid arthritis and Crohn's disease. However, the role of A20 in attenuating inflammatory signalling is unclear owing to paradoxical in vitro and in vivo findings. Here we utilize genetically engineered mice bearing mutations in the A20 ovarian tumour (OTU)-type deubiquitinase domain or in the zinc finger-4 (ZnF4) ubiquitin-binding motif to investigate these discrepancies. We find that phosphorylation of A20 promotes cleavage of Lys63-linked polyubiquitin chains by the OTU domain and enhances ZnF4-mediated substrate ubiquitination. Additionally, levels of linear ubiquitination dictate whether A20-deficient cells die in response to tumour necrosis factor. Mechanistically, linear ubiquitin chains preserve the architecture of the TNFR1 signalling complex by blocking A20-mediated disassembly of Lys63-linked polyubiquitin scaffolds. Collectively, our studies reveal molecular mechanisms whereby A20 deubiquitinase activity and ubiquitin binding, linear ubiquitination, and cellular kinases cooperate to regulate inflammation and cell death.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wertz, Ingrid E -- Newton, Kim -- Seshasayee, Dhaya -- Kusam, Saritha -- Lam, Cynthia -- Zhang, Juan -- Popovych, Nataliya -- Helgason, Elizabeth -- Schoeffler, Allyn -- Jeet, Surinder -- Ramamoorthi, Nandhini -- Kategaya, Lorna -- Newman, Robert J -- Horikawa, Keisuke -- Dugger, Debra -- Sandoval, Wendy -- Mukund, Susmith -- Zindal, Anuradha -- Martin, Flavius -- Quan, Clifford -- Tom, Jeffrey -- Fairbrother, Wayne J -- Townsend, Michael -- Warming, Soren -- DeVoss, Jason -- Liu, Jinfeng -- Dueber, Erin -- Caplazi, Patrick -- Lee, Wyne P -- Goodnow, Christopher C -- Balazs, Mercedesz -- Yu, Kebing -- Kolumam, Ganesh -- Dixit, Vishva M -- England -- Nature. 2015 Dec 17;528(7582):370-5. doi: 10.1038/nature16165. Epub 2015 Dec 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Discovery Oncology, Genentech, South San Francisco, California 94080, USA. ; Early Discovery Biochemistry, Genentech, South San Francisco, California 94080, USA. ; Physiological Chemistry, Genentech, South San Francisco, California 94080, USA. ; Immunology, Genentech, South San Francisco, California 94080, USA. ; Molecular Biology, Genentech, South San Francisco, California 94080, USA. ; Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 2601, Australia. ; Protein Chemistry, Genentech, South San Francisco, California 94080, USA. ; Structural Biology, Genentech, South San Francisco, California 94080, USA. ; Bioinformatics, Genentech, South San Francisco, California 94080, USA. ; Pathology, Genentech, South San Francisco, California 94080, USA. ; Immunogenomics Laboratory, Immunology Division, Garvan Institute of Medical Research, 384 Victoria Street, Darlinghurst, New South Wales 2010, Sydney, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26649818" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Death ; Cysteine Endopeptidases/chemistry/genetics/*metabolism ; Female ; Inflammation/genetics/*metabolism/pathology ; Intracellular Signaling Peptides and Proteins/chemistry/genetics/*metabolism ; Lysine/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mutation ; Phosphorylation ; Polyubiquitin/chemistry/metabolism ; Protein Binding ; Protein Kinases/metabolism ; Signal Transduction ; Tumor Necrosis Factor-alpha/metabolism ; Ubiquitin/*chemistry/*metabolism ; Ubiquitination
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  • 28
    Publication Date: 2015-11-03
    Description: Ever since Stephen Paget's 1889 hypothesis, metastatic organotropism has remained one of cancer's greatest mysteries. Here we demonstrate that exosomes from mouse and human lung-, liver- and brain-tropic tumour cells fuse preferentially with resident cells at their predicted destination, namely lung fibroblasts and epithelial cells, liver Kupffer cells and brain endothelial cells. We show that tumour-derived exosomes uptaken by organ-specific cells prepare the pre-metastatic niche. Treatment with exosomes from lung-tropic models redirected the metastasis of bone-tropic tumour cells. Exosome proteomics revealed distinct integrin expression patterns, in which the exosomal integrins alpha6beta4 and alpha6beta1 were associated with lung metastasis, while exosomal integrin alphavbeta5 was linked to liver metastasis. Targeting the integrins alpha6beta4 and alphavbeta5 decreased exosome uptake, as well as lung and liver metastasis, respectively. We demonstrate that exosome integrin uptake by resident cells activates Src phosphorylation and pro-inflammatory S100 gene expression. Finally, our clinical data indicate that exosomal integrins could be used to predict organ-specific metastasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoshino, Ayuko -- Costa-Silva, Bruno -- Shen, Tang-Long -- Rodrigues, Goncalo -- Hashimoto, Ayako -- Tesic Mark, Milica -- Molina, Henrik -- Kohsaka, Shinji -- Di Giannatale, Angela -- Ceder, Sophia -- Singh, Swarnima -- Williams, Caitlin -- Soplop, Nadine -- Uryu, Kunihiro -- Pharmer, Lindsay -- King, Tari -- Bojmar, Linda -- Davies, Alexander E -- Ararso, Yonathan -- Zhang, Tuo -- Zhang, Haiying -- Hernandez, Jonathan -- Weiss, Joshua M -- Dumont-Cole, Vanessa D -- Kramer, Kimberly -- Wexler, Leonard H -- Narendran, Aru -- Schwartz, Gary K -- Healey, John H -- Sandstrom, Per -- Labori, Knut Jorgen -- Kure, Elin H -- Grandgenett, Paul M -- Hollingsworth, Michael A -- de Sousa, Maria -- Kaur, Sukhwinder -- Jain, Maneesh -- Mallya, Kavita -- Batra, Surinder K -- Jarnagin, William R -- Brady, Mary S -- Fodstad, Oystein -- Muller, Volkmar -- Pantel, Klaus -- Minn, Andy J -- Bissell, Mina J -- Garcia, Benjamin A -- Kang, Yibin -- Rajasekhar, Vinagolu K -- Ghajar, Cyrus M -- Matei, Irina -- Peinado, Hector -- Bromberg, Jacqueline -- Lyden, David -- R01 CA169416/CA/NCI NIH HHS/ -- R01-CA169416/CA/NCI NIH HHS/ -- U01 CA169538/CA/NCI NIH HHS/ -- U01-CA169538/CA/NCI NIH HHS/ -- England -- Nature. 2015 Nov 19;527(7578):329-35. doi: 10.1038/nature15756. Epub 2015 Oct 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA. ; Department of Plant Pathology and Microbiology and Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan. ; Graduate Program in Areas of Basic and Applied Biology, Abel Salazar Biomedical Sciences Institute, University of Porto, 4099-003 Porto, Portugal. ; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo, Tokyo 113-8655, Japan. ; Proteomics Resource Center, The Rockefeller University, New York, New York 10065, USA. ; Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; Department of Oncology and Pathology, Karolinska Institutet, 17176 Stockholm, Sweden. ; Electron Microscopy Resource Center (EMRC), Rockefeller University, New York, New York 10065, USA. ; Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, 10065, USA. ; Department of Surgery, County Council of Ostergotland, and Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linkoping University, 58185 Linkoping, Sweden. ; Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. ; Genomics Resources Core Facility, Weill Cornell Medicine, New York, New York 10021, USA. ; Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; Division of Pediatric Oncology, Alberta Children's Hospital, Calgary, Alberta T3B 6A8, Canada. ; Division of Hematology/Oncology, Columbia University School of Medicine, New York, New York 10032, USA. ; Orthopaedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; Department of Hepato-Pancreato-Biliary Surgery, Oslo University Hospital, Nydalen, Oslo 0424, Norway. ; Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Nydalen, Oslo 0424, Norway. ; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA. ; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA. ; Gastric and Mixed Tumor Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; Department of Tumor Biology, Norwegian Radium Hospital, Oslo University Hospital, Nydalen, Oslo 0424, Norway. ; Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Blindern, Oslo 0318, Norway. ; Department of Gynecology, University Medical Center, Martinistrasse 52, 20246 Hamburg, Germany. ; Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany. ; Department of Radiation Oncology, Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA. ; Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey 08903, USA. ; Breast Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA. ; Microenvironment and Metastasis Laboratory, Department of Molecular Oncology, Spanish National Cancer Research Center (CNIO), Madrid 28029, Spain. ; Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; Department of Medicine, Weill Cornell Medicine, New York, New York 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26524530" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomarkers/metabolism ; Brain/cytology/*metabolism ; Cell Line, Tumor ; Endothelial Cells/cytology/metabolism ; Epithelial Cells/cytology/metabolism ; Exosomes/*metabolism ; Female ; Fibroblasts/cytology/metabolism ; Genes, src ; Humans ; Integrin alpha6beta1/metabolism ; Integrin alpha6beta4/antagonists & inhibitors/metabolism ; Integrin beta Chains/metabolism ; Integrin beta4/metabolism ; Integrins/antagonists & inhibitors/*metabolism ; Kupffer Cells/cytology/metabolism ; Liver/cytology/*metabolism ; Lung/cytology/*metabolism ; Mice ; Mice, Inbred C57BL ; Neoplasm Metastasis/*pathology/*prevention & control ; Organ Specificity ; Phosphorylation ; Receptors, Vitronectin/antagonists & inhibitors/metabolism ; S100 Proteins/genetics ; *Tropism
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  • 29
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2015-11-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoag, Hannah -- England -- Nature. 2015 Nov 19;527(7578):S114-5. doi: 10.1038/527S114a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26580160" target="_blank"〉PubMed〈/a〉
    Keywords: Biomarkers, Tumor/blood/*metabolism ; Breast Neoplasms/*diagnosis/genetics/*metabolism/pathology ; Cell Proliferation ; Disease Progression ; Female ; Genes, Neoplasm/genetics ; Humans ; Medical Overuse/*prevention & control ; Neoplasm Invasiveness/diagnosis/genetics ; Neoplasm Recurrence, Local/diagnosis/genetics ; Prognosis ; Reproducibility of Results ; Tamoxifen/therapeutic use
    Print ISSN: 0028-0836
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 30
    Publication Date: 2015-09-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Begley, C Glenn -- Buchan, Alastair M -- Dirnagl, Ulrich -- England -- Nature. 2015 Sep 3;525(7567):25-7. doi: 10.1038/525025a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉TetraLogic Pharmaceuticals, Malvern, Pennsylvania, USA. ; Medical Science Division, Oxford NIHR Biomedical Research Centre, University of Oxford, UK. ; Center for Stroke Research at the Universitatsmedizin Charite Berlin, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26333454" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bias (Epidemiology) ; Humans ; Peer Review, Research/*methods/*standards ; Reproducibility of Results ; Research/*standards/statistics & numerical data ; Research Design/*standards ; Scientific Misconduct/statistics & numerical data
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  • 31
    Publication Date: 2015-05-01
    Description: The ability to differentiate stimuli predicting positive or negative outcomes is critical for survival, and perturbations of emotional processing underlie many psychiatric disease states. Synaptic plasticity in the basolateral amygdala complex (BLA) mediates the acquisition of associative memories, both positive and negative. Different populations of BLA neurons may encode fearful or rewarding associations, but the identifying features of these populations and the synaptic mechanisms of differentiating positive and negative emotional valence have remained unknown. Here we show that BLA neurons projecting to the nucleus accumbens (NAc projectors) or the centromedial amygdala (CeM projectors) undergo opposing synaptic changes following fear or reward conditioning. We find that photostimulation of NAc projectors supports positive reinforcement while photostimulation of CeM projectors mediates negative reinforcement. Photoinhibition of CeM projectors impairs fear conditioning and enhances reward conditioning. We characterize these functionally distinct neuronal populations by comparing their electrophysiological, morphological and genetic features. Overall, we provide a mechanistic explanation for the representation of positive and negative associations within the amygdala.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4418228/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4418228/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Namburi, Praneeth -- Beyeler, Anna -- Yorozu, Suzuko -- Calhoon, Gwendolyn G -- Halbert, Sarah A -- Wichmann, Romy -- Holden, Stephanie S -- Mertens, Kim L -- Anahtar, Melodi -- Felix-Ortiz, Ada C -- Wickersham, Ian R -- Gray, Jesse M -- Tye, Kay M -- DP2 DK102256/DK/NIDDK NIH HHS/ -- DP2-DK-102256-01/DK/NIDDK NIH HHS/ -- R01 MH101528/MH/NIMH NIH HHS/ -- R01 MH102441/MH/NIMH NIH HHS/ -- R01-MH101528-01/MH/NIMH NIH HHS/ -- R01-MH102441-01/MH/NIMH NIH HHS/ -- U01 MH106018/MH/NIMH NIH HHS/ -- U01-MH106018/MH/NIMH NIH HHS/ -- U01-NS090473/NS/NINDS NIH HHS/ -- England -- Nature. 2015 Apr 30;520(7549):675-8. doi: 10.1038/nature14366.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] The Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [2] Neuroscience Graduate Program, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. ; The Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. ; Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, NRB 356, Boston, Massachusetts 02115, USA. ; 1] The Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [2] Undergraduate Program in Neuroscience, Wellesley College, Wellesley, Massachusetts 02481, USA. ; 1] The Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [2] Undergraduate Program in Neuroscience, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. ; 1] The Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [2] Master's Program in Biomedical Sciences, University of Amsterdam, Amsterdam 1098 XH, The Netherlands. ; McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25925480" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/*cytology/*physiology ; Animals ; Conditioning, Classical ; Fear/*physiology/psychology ; Gene Expression Profiling ; Long-Term Potentiation ; Male ; Mice ; Mice, Inbred C57BL ; Motivation ; *Neural Pathways ; Neurons/*physiology ; Nucleus Accumbens/cytology/physiology/radiation effects ; Reinforcement (Psychology) ; *Reward ; Transcription, Genetic
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  • 32
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    Nature Publishing Group (NPG)
    Publication Date: 2015-02-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reardon, Sara -- England -- Nature. 2015 Feb 26;518(7540):474-6. doi: 10.1038/518474a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25719648" target="_blank"〉PubMed〈/a〉
    Keywords: Acute Pain/diagnosis/physiopathology/psychology ; Aging ; Algorithms ; Bias (Epidemiology) ; *Brain Mapping ; Cerebral Cortex/physiopathology ; Chronic Pain/diagnosis/physiopathology/psychology ; Confounding Factors (Epidemiology) ; Female ; Forensic Medicine/*ethics/*methods ; Humans ; *Magnetic Resonance Imaging ; Male ; Malingering/prevention & control ; Middle Aged ; Pain/*diagnosis/physiopathology/psychology ; Pain Measurement/*ethics/*methods ; Reproducibility of Results ; Sample Size ; Sex Characteristics ; Uncertainty
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  • 33
    Publication Date: 2015-12-18
    Description: T helper 17 (TH17) lymphocytes protect mucosal barriers from infections, but also contribute to multiple chronic inflammatory diseases. Their differentiation is controlled by RORgammat, a ligand-regulated nuclear receptor. Here we identify the RNA helicase DEAD-box protein 5 (DDX5) as a RORgammat partner that coordinates transcription of selective TH17 genes, and is required for TH17-mediated inflammatory pathologies. Surprisingly, the ability of DDX5 to interact with RORgammat and coactivate its targets depends on intrinsic RNA helicase activity and binding of a conserved nuclear long noncoding RNA (lncRNA), Rmrp, which is mutated in patients with cartilage-hair hypoplasia. A targeted Rmrp gene mutation in mice, corresponding to a gene mutation in cartilage-hair hypoplasia patients, altered lncRNA chromatin occupancy, and reduced the DDX5-RORgammat interaction and RORgammat target gene transcription. Elucidation of the link between Rmrp and the DDX5-RORgammat complex reveals a role for RNA helicases and lncRNAs in tissue-specific transcriptional regulation, and provides new opportunities for therapeutic intervention in TH17-dependent diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4762670/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4762670/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Wendy -- Thomas, Benjamin -- Flynn, Ryan A -- Gavzy, Samuel J -- Wu, Lin -- Kim, Sangwon V -- Hall, Jason A -- Miraldi, Emily R -- Ng, Charles P -- Rigo, Frank W -- Meadows, Sarah -- Montoya, Nina R -- Herrera, Natalia G -- Domingos, Ana I -- Rastinejad, Fraydoon -- Myers, Richard M -- Fuller-Pace, Frances V -- Bonneau, Richard -- Chang, Howard Y -- Acuto, Oreste -- Littman, Dan R -- 1F30CA189514-01/CA/NCI NIH HHS/ -- F30 CA189514/CA/NCI NIH HHS/ -- P50 HG007735/HG/NHGRI NIH HHS/ -- P50-HG007735/HG/NHGRI NIH HHS/ -- R01 AI080885/AI/NIAID NIH HHS/ -- R01 AI121436/AI/NIAID NIH HHS/ -- R01 DK103358/DK/NIDDK NIH HHS/ -- R01 HG004361/HG/NHGRI NIH HHS/ -- R01AI080885/AI/NIAID NIH HHS/ -- R01DK103358/DK/NIDDK NIH HHS/ -- R01HG004361/HG/NHGRI NIH HHS/ -- T32 AI100853/AI/NIAID NIH HHS/ -- T32 CA009161/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Dec 24;528(7583):517-22. doi: 10.1038/nature16193. Epub 2015 Dec 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Kimmel Center for Biology and Medicine of the Skirball Institute, New York University School of Medicine, New York, New York 10016, USA. ; Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK. ; Center for Personal Dynamic Regulomes, Stanford University, Stanford, California 94305, USA. ; Center for Genomics and Systems Biology, Department of Biology, New York University, New York, New York 10003, USA. ; Courant Institute of Mathematical Sciences, Computer Science Department, New York University, New York, New York 10012, USA. ; Simons Center for Data Analysis, Simons Foundation, New York, New York 10010, USA. ; Isis Pharmaceuticals, Carlsbad, California 92010, USA. ; HudsonAlpha Institute for Biotechnology, Huntsville, Alabama 35806, USA. ; Instituto Gulbenkian de Ciencia, Oeiras 2780-156, Portugal. ; Integrative Metabolism Program, Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida 32827, USA. ; Division of Cancer Research, University of Dundee, Dundee DD1 9SY, UK. ; Howard Hughes Medical Institute, New York University School of Medicine, New York, New York 10016, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26675721" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromatin/genetics/metabolism ; DEAD-box RNA Helicases/genetics/*metabolism ; Female ; Gene Expression Regulation/genetics ; Hair/abnormalities ; Hirschsprung Disease/genetics ; Humans ; Immunologic Deficiency Syndromes/genetics ; Inflammation/immunology/pathology ; Male ; Mice ; Mice, Inbred C57BL ; Mutation/genetics ; Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism ; Organ Specificity ; Osteochondrodysplasias/congenital/genetics ; Protein Binding ; RNA, Long Noncoding/genetics/*metabolism ; Th17 Cells/*immunology/*metabolism ; Transcription, Genetic/genetics
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  • 34
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    Nature Publishing Group (NPG)
    Publication Date: 2015-07-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2015 Jul 23;523(7561):382. doi: 10.1038/523382a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26201561" target="_blank"〉PubMed〈/a〉
    Keywords: *Communication ; Data Collection ; Reproducibility of Results ; *Research Design/standards ; *Research Personnel
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  • 35
    Publication Date: 2015-03-13
    Description: After stimulation, dendritic cells (DCs) mature and migrate to draining lymph nodes to induce immune responses. As such, autologous DCs generated ex vivo have been pulsed with tumour antigens and injected back into patients as immunotherapy. While DC vaccines have shown limited promise in the treatment of patients with advanced cancers including glioblastoma, the factors dictating DC vaccine efficacy remain poorly understood. Here we show that pre-conditioning the vaccine site with a potent recall antigen such as tetanus/diphtheria (Td) toxoid can significantly improve the lymph node homing and efficacy of tumour-antigen-specific DCs. To assess the effect of vaccine site pre-conditioning in humans, we randomized patients with glioblastoma to pre-conditioning with either mature DCs or Td unilaterally before bilateral vaccination with DCs pulsed with Cytomegalovirus phosphoprotein 65 (pp65) RNA. We and other laboratories have shown that pp65 is expressed in more than 90% of glioblastoma specimens but not in surrounding normal brain, providing an unparalleled opportunity to subvert this viral protein as a tumour-specific target. Patients given Td had enhanced DC migration bilaterally and significantly improved survival. In mice, Td pre-conditioning also enhanced bilateral DC migration and suppressed tumour growth in a manner dependent on the chemokine CCL3. Our clinical studies and corroborating investigations in mice suggest that pre-conditioning with a potent recall antigen may represent a viable strategy to improve anti-tumour immunotherapy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4510871/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4510871/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mitchell, Duane A -- Batich, Kristen A -- Gunn, Michael D -- Huang, Min-Nung -- Sanchez-Perez, Luis -- Nair, Smita K -- Congdon, Kendra L -- Reap, Elizabeth A -- Archer, Gary E -- Desjardins, Annick -- Friedman, Allan H -- Friedman, Henry S -- Herndon, James E 2nd -- Coan, April -- McLendon, Roger E -- Reardon, David A -- Vredenburgh, James J -- Bigner, Darell D -- Sampson, John H -- 1UL2 RR024128-01/RR/NCRR NIH HHS/ -- P01 CA154291/CA/NCI NIH HHS/ -- P01-CA154291-01A1/CA/NCI NIH HHS/ -- P50 CA108786/CA/NCI NIH HHS/ -- P50 NS020023/NS/NINDS NIH HHS/ -- P50-CA108786/CA/NCI NIH HHS/ -- P50-NS20023/NS/NINDS NIH HHS/ -- R01 CA134844/CA/NCI NIH HHS/ -- R01 CA177476/CA/NCI NIH HHS/ -- R01 NS067037/NS/NINDS NIH HHS/ -- R01-CA134844/CA/NCI NIH HHS/ -- R01-CA177476-01/CA/NCI NIH HHS/ -- R01-NS067037/NS/NINDS NIH HHS/ -- T32 AI052077/AI/NIAID NIH HHS/ -- T32 GM007171/GM/NIGMS NIH HHS/ -- England -- Nature. 2015 Mar 19;519(7543):366-9. doi: 10.1038/nature14320. Epub 2015 Mar 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina 27710, USA [2] Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710, USA [3] Department of Pathology, Duke University Medical Center, Durham, North Carolina 27710, USA. ; 1] Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710, USA [2] Department of Pathology, Duke University Medical Center, Durham, North Carolina 27710, USA. ; 1] Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, North Carolina 27710, USA [2] Department of Immunology, Duke University Medical Center, Durham, North Carolina 27710, USA. ; Department of Immunology, Duke University Medical Center, Durham, North Carolina 27710, USA. ; Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710, USA. ; Division of Surgical Sciences, Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710, USA. ; 1] Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina 27710, USA [2] Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710, USA. ; Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, North Carolina 27710, USA. ; 1] Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina 27710, USA [2] Department of Pathology, Duke University Medical Center, Durham, North Carolina 27710, USA. ; 1] Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina 27710, USA [2] Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710, USA [3] Department of Pathology, Duke University Medical Center, Durham, North Carolina 27710, USA [4] Department of Immunology, Duke University Medical Center, Durham, North Carolina 27710, USA [5] Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25762141" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Neoplasm/immunology ; CD4-Positive T-Lymphocytes/drug effects/immunology ; Cancer Vaccines/administration & dosage/*immunology/therapeutic use ; Cell Movement/drug effects ; Chemokine CCL3/*immunology ; Dendritic Cells/cytology/*drug effects/immunology ; Female ; Glioblastoma/drug therapy/*immunology/pathology/*therapy ; Humans ; Immunotherapy/methods ; Lymph Nodes/cytology/drug effects/immunology ; Mice ; Mice, Inbred C57BL ; Phosphoproteins/chemistry/genetics/immunology ; Substrate Specificity ; Survival Rate ; Tetanus Toxoid/*administration & dosage/*pharmacology/therapeutic use ; Treatment Outcome ; Viral Matrix Proteins/chemistry/genetics/immunology
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  • 36
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    Nature Publishing Group (NPG)
    Publication Date: 2015-11-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Monya -- England -- Nature. 2015 Nov 26;527(7579):545-51. doi: 10.1038/527545a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nature in San Francisco, California.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26607547" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/*immunology ; Antibody Specificity/*immunology ; Cross Reactions/immunology ; Humans ; Immunoassay/*methods/*standards ; Indicators and Reagents/standards ; International Cooperation ; Mice ; National Institutes of Health (U.S.) ; Neuroanatomy/methods/standards ; Periodicals as Topic ; Reproducibility of Results ; United States
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  • 37
    Publication Date: 2015-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Monya -- England -- Nature. 2015 May 21;521(7552):274-6. doi: 10.1038/521274a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25993940" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies/chemistry/economics/genetics/*immunology ; Antibody Specificity/*immunology ; *Artifacts ; Cross Reactions/immunology ; Humans ; Indicators and Reagents/economics/standards ; Membrane Proteins/immunology ; Quality Control ; Reagent Kits, Diagnostic/standards ; Reproducibility of Results
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  • 38
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2015-09-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2015 Sep 24;525(7570):426. doi: 10.1038/525426a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26399791" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cellular Reprogramming ; Embryonic Stem Cells/cytology/*metabolism ; Genotype ; Induced Pluripotent Stem Cells/cytology/*metabolism ; Peer Review, Research ; *Periodicals as Topic ; Reproducibility of Results ; Research/*standards ; *Retraction of Publication as Topic ; Sequence Analysis, DNA
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  • 39
    Publication Date: 2015-01-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Werner, Reinhard -- England -- Nature. 2015 Jan 15;517(7534):245. doi: 10.1038/517245a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25592498" target="_blank"〉PubMed〈/a〉
    Keywords: Decision Making ; *Journal Impact Factor ; *Motivation ; Personnel Selection/methods ; Reproducibility of Results ; Research Personnel/*psychology/*standards
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  • 40
    Publication Date: 2015-12-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Monya -- Callaway, Ewen -- Castelvecchi, Davide -- Morello, Lauren -- Reardon, Sara -- Schiermeier, Quirin -- Witze, Alexandra -- England -- Nature. 2015 Dec 24;528(7583):448-51. doi: 10.1038/528448a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26701034" target="_blank"〉PubMed〈/a〉
    Keywords: CRISPR-Cas Systems/genetics ; Congresses as Topic ; Cryoelectron Microscopy ; Dengue Vaccines/supply & distribution ; Earthquakes/statistics & numerical data ; Ebola Vaccines/immunology ; Genetic Engineering/ethics/legislation & jurisprudence ; Global Warming/legislation & jurisprudence/prevention & control ; Humans ; Hydraulic Fracking/statistics & numerical data ; International Cooperation ; Malaria Vaccines/immunology ; Paris ; Physics ; Pluto ; Precision Medicine ; Reproducibility of Results ; Research/standards ; *Science ; Sexism/statistics & numerical data ; Space Flight
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  • 41
    Publication Date: 2015-11-05
    Description: It is estimated that more than 170 million people are infected with hepatitis C virus (HCV) worldwide. Clinical trials have demonstrated that, for the first time in human history, the potential exists to eradicate a chronic viral disease using combination therapies that contain only direct-acting antiviral agents. HCV non-structural protein 5A (NS5A) is a multifunctional protein required for several stages of the virus replication cycle. NS5A replication complex inhibitors, exemplified by daclatasvir (DCV; also known as BMS-790052 and Daklinza), belong to the most potent class of direct-acting anti-HCV agents described so far, with in vitro activity in the picomolar (pM) to low nanomolar (nM) range. The potency observed in vitro has translated into clinical efficacy, with HCV RNA declining by ~3-4 log10 in infected patients after administration of single oral doses of DCV. Understanding the exceptional potency of DCV was a key objective of this study. Here we show that although DCV and an NS5A inhibitor analogue (Syn-395) are inactive against certain NS5A resistance variants, combinations of the pair enhance DCV potency by 〉1,000-fold, restoring activity to the pM range. This synergistic effect was validated in vivo using an HCV-infected chimaeric mouse model. The cooperative interaction of a pair of compounds suggests that NS5A protein molecules communicate with each other: one inhibitor binds to resistant NS5A, causing a conformational change that is transmitted to adjacent NS5As, resensitizing resistant NS5A so that the second inhibitor can act to restore inhibition. This unprecedented synergistic anti-HCV activity also enhances the resistance barrier of DCV, providing additional options for HCV combination therapy and new insight into the role of NS5A in the HCV replication cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, Jin-Hua -- O'Boyle, Donald R 2nd -- Fridell, Robert A -- Langley, David R -- Wang, Chunfu -- Roberts, Susan B -- Nower, Peter -- Johnson, Benjamin M -- Moulin, Frederic -- Nophsker, Michelle J -- Wang, Ying-Kai -- Liu, Mengping -- Rigat, Karen -- Tu, Yong -- Hewawasam, Piyasena -- Kadow, John -- Meanwell, Nicholas A -- Cockett, Mark -- Lemm, Julie A -- Kramer, Melissa -- Belema, Makonen -- Gao, Min -- England -- Nature. 2015 Nov 12;527(7577):245-8. doi: 10.1038/nature15711. Epub 2015 Nov 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Virology, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, USA. ; Computer-Assisted Drug Design, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, USA. ; Pharmaceutical Candidate Optimization, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, USA. ; Leads Discovery and Optimization, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, USA. ; Discovery Chemistry, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26536115" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation/drug effects ; Animals ; Antiviral Agents/*pharmacology ; Biphenyl Compounds/*pharmacology ; Cell Line ; Drug Resistance, Viral/*drug effects ; Drug Synergism ; Drug Therapy, Combination ; Hepacivirus/*drug effects/*genetics/metabolism ; Hepatitis C/virology ; Hepatocytes/transplantation ; Humans ; Imidazoles/*pharmacology ; Mice ; Models, Molecular ; Protein Conformation/drug effects ; Protein Multimerization/drug effects ; Protein Structure, Quaternary/drug effects ; Reproducibility of Results ; Viral Nonstructural Proteins/chemistry/genetics/*metabolism ; Virus Replication/drug effects
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  • 42
    Publication Date: 2015-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Check Hayden, Erika -- England -- Nature. 2015 Apr 16;520(7547):276-7. doi: 10.1038/520276a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25877185" target="_blank"〉PubMed〈/a〉
    Keywords: Access to Information ; Algorithms ; Computational Biology/methods/*standards ; Datasets as Topic ; Peer Review, Research/*methods/*standards ; Periodicals as Topic/*standards ; Reproducibility of Results ; Research Design/*standards ; Software/*standards
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  • 43
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    Nature Publishing Group (NPG)
    Publication Date: 2015-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reardon, Sara -- England -- Nature. 2015 Jul 16;523(7560):266. doi: 10.1038/523266a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26178942" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biotechnology/methods ; Clinical Trials as Topic ; Drug Discovery/*methods ; Drug Industry/*methods ; Humans ; *Models, Biological ; Organ Specificity/*drug effects ; Rats ; Reproducibility of Results ; Tissue Array Analysis/*methods
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  • 44
    Publication Date: 2015-03-25
    Description: Cyclic guanosine monophosphate (cGMP) is a second messenger molecule that transduces nitric-oxide- and natriuretic-peptide-coupled signalling, stimulating phosphorylation changes by protein kinase G. Enhancing cGMP synthesis or blocking its degradation by phosphodiesterase type 5A (PDE5A) protects against cardiovascular disease. However, cGMP stimulation alone is limited by counter-adaptions including PDE upregulation. Furthermore, although PDE5A regulates nitric-oxide-generated cGMP, nitric oxide signalling is often depressed by heart disease. PDEs controlling natriuretic-peptide-coupled cGMP remain uncertain. Here we show that cGMP-selective PDE9A (refs 7, 8) is expressed in the mammalian heart, including humans, and is upregulated by hypertrophy and cardiac failure. PDE9A regulates natriuretic-peptide- rather than nitric-oxide-stimulated cGMP in heart myocytes and muscle, and its genetic or selective pharmacological inhibition protects against pathological responses to neurohormones, and sustained pressure-overload stress. PDE9A inhibition reverses pre-established heart disease independent of nitric oxide synthase (NOS) activity, whereas PDE5A inhibition requires active NOS. Transcription factor activation and phosphoproteome analyses of myocytes with each PDE selectively inhibited reveals substantial differential targeting, with phosphorylation changes from PDE5A inhibition being more sensitive to NOS activation. Thus, unlike PDE5A, PDE9A can regulate cGMP signalling independent of the nitric oxide pathway, and its role in stress-induced heart disease suggests potential as a therapeutic target.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376609/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376609/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Dong I -- Zhu, Guangshuo -- Sasaki, Takashi -- Cho, Gun-Sik -- Hamdani, Nazha -- Holewinski, Ronald -- Jo, Su-Hyun -- Danner, Thomas -- Zhang, Manling -- Rainer, Peter P -- Bedja, Djahida -- Kirk, Jonathan A -- Ranek, Mark J -- Dostmann, Wolfgang R -- Kwon, Chulan -- Margulies, Kenneth B -- Van Eyk, Jennifer E -- Paulus, Walter J -- Takimoto, Eiki -- Kass, David A -- HHSN268201000032C/HL/NHLBI NIH HHS/ -- HL-07227/HL/NHLBI NIH HHS/ -- HL-089297/HL/NHLBI NIH HHS/ -- HL-093432/HL/NHLBI NIH HHS/ -- HL-119012/HL/NHLBI NIH HHS/ -- HL089847/HL/NHLBI NIH HHS/ -- HL105993/HL/NHLBI NIH HHS/ -- HL68891/HL/NHLBI NIH HHS/ -- N01HV28180/HL/NHLBI NIH HHS/ -- P01 HL107153/HL/NHLBI NIH HHS/ -- R01 HL089297/HL/NHLBI NIH HHS/ -- R01 HL089847/HL/NHLBI NIH HHS/ -- R01 HL093432/HL/NHLBI NIH HHS/ -- R01 HL105993/HL/NHLBI NIH HHS/ -- R01 HL111198/HL/NHLBI NIH HHS/ -- R01 HL119012/HL/NHLBI NIH HHS/ -- T32 HL007227/HL/NHLBI NIH HHS/ -- England -- Nature. 2015 Mar 26;519(7544):472-6. doi: 10.1038/nature14332. Epub 2015 Mar 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cardiology, Department of Medicine, The Johns Hopkins Medical Institutions, Baltimore, Maryland 21205, USA. ; Advanced Medical Research Laboratories, Research Division, Mitsubishi Tanabe Pharma Corporation, Yokohama, Kanagawa 227-0033, Japan. ; Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands. ; 1] Division of Cardiology, Department of Medicine, The Johns Hopkins Medical Institutions, Baltimore, Maryland 21205, USA [2] Heart Institute and Advanced Clinical Biosystems Research Institute, Cedar Sinai Medical Center, 8700 Beverly Blvd, AHSP A9229 Los Angeles, California 90048, USA. ; Department of Physiology, Institute of Bioscience and Biotechnology, BK21 plus Graduate Program, Kangwon National University College of Medicine, Chuncheon 200-701, Korea. ; Department of Pharmacology, University of Vermont, Burlington, Vermont 05405, USA. ; Department of Medicine, Division of Cardiovascular Medicine, Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25799991" target="_blank"〉PubMed〈/a〉
    Keywords: 3',5'-Cyclic-AMP Phosphodiesterases/antagonists & ; inhibitors/deficiency/genetics/*metabolism ; Animals ; Aortic Valve Stenosis/complications ; Cardiomegaly/drug therapy/*enzymology/etiology/*metabolism ; Cyclic GMP/*metabolism ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; Muscle Cells/enzymology ; Myocardium/enzymology ; Natriuretic Peptides/metabolism ; *Nitric Oxide/metabolism ; Nitric Oxide Synthase ; Phosphodiesterase Inhibitors/pharmacology/therapeutic use ; Pressure ; Signal Transduction/drug effects ; Stress, Physiological ; Up-Regulation
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  • 45
    Publication Date: 2015-09-01
    Description: Dopamine neurons are thought to facilitate learning by comparing actual and expected reward. Despite two decades of investigation, little is known about how this comparison is made. To determine how dopamine neurons calculate prediction error, we combined optogenetic manipulations with extracellular recordings in the ventral tegmental area while mice engaged in classical conditioning. Here we demonstrate, by manipulating the temporal expectation of reward, that dopamine neurons perform subtraction, a computation that is ideal for reinforcement learning but rarely observed in the brain. Furthermore, selectively exciting and inhibiting neighbouring GABA (gamma-aminobutyric acid) neurons in the ventral tegmental area reveals that these neurons are a source of subtraction: they inhibit dopamine neurons when reward is expected, causally contributing to prediction-error calculations. Finally, bilaterally stimulating ventral tegmental area GABA neurons dramatically reduces anticipatory licking to conditioned odours, consistent with an important role for these neurons in reinforcement learning. Together, our results uncover the arithmetic and local circuitry underlying dopamine prediction errors.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4567485/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4567485/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eshel, Neir -- Bukwich, Michael -- Rao, Vinod -- Hemmelder, Vivian -- Tian, Ju -- Uchida, Naoshige -- F30 MH100729/MH/NIMH NIH HHS/ -- F30MH100729/MH/NIMH NIH HHS/ -- R01 MH095953/MH/NIMH NIH HHS/ -- R01 MH101207/MH/NIMH NIH HHS/ -- R01MH095953/MH/NIMH NIH HHS/ -- R01MH101207/MH/NIMH NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- T32GM007753/GM/NIGMS NIH HHS/ -- England -- Nature. 2015 Sep 10;525(7568):243-6. doi: 10.1038/nature14855. Epub 2015 Aug 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Brain Science, Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26322583" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conditioning, Classical ; Dopamine/*metabolism ; Dopaminergic Neurons/*metabolism ; GABAergic Neurons/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; *Models, Neurological ; Neural Pathways/*physiology ; Odors/analysis ; Optogenetics ; Reinforcement (Psychology) ; Reward ; Time Factors ; Ventral Tegmental Area/*cytology/*physiology ; gamma-Aminobutyric Acid/metabolism
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  • 46
    Publication Date: 2015-04-02
    Description: The RNA-guided endonuclease Cas9 has emerged as a versatile genome-editing platform. However, the size of the commonly used Cas9 from Streptococcus pyogenes (SpCas9) limits its utility for basic research and therapeutic applications that use the highly versatile adeno-associated virus (AAV) delivery vehicle. Here, we characterize six smaller Cas9 orthologues and show that Cas9 from Staphylococcus aureus (SaCas9) can edit the genome with efficiencies similar to those of SpCas9, while being more than 1 kilobase shorter. We packaged SaCas9 and its single guide RNA expression cassette into a single AAV vector and targeted the cholesterol regulatory gene Pcsk9 in the mouse liver. Within one week of injection, we observed 〉40% gene modification, accompanied by significant reductions in serum Pcsk9 and total cholesterol levels. We further assess the genome-wide targeting specificity of SaCas9 and SpCas9 using BLESS, and demonstrate that SaCas9-mediated in vivo genome editing has the potential to be efficient and specific.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4393360/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4393360/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ran, F Ann -- Cong, Le -- Yan, Winston X -- Scott, David A -- Gootenberg, Jonathan S -- Kriz, Andrea J -- Zetsche, Bernd -- Shalem, Ophir -- Wu, Xuebing -- Makarova, Kira S -- Koonin, Eugene V -- Sharp, Phillip A -- Zhang, Feng -- 5DP1-MH100706/DP/NCCDPHP CDC HHS/ -- 5P30EY012196-17/EY/NEI NIH HHS/ -- 5R01DK097768-03/DK/NIDDK NIH HHS/ -- DP1 MH100706/MH/NIMH NIH HHS/ -- P01-CA42063/CA/NCI NIH HHS/ -- P30 CA014051/CA/NCI NIH HHS/ -- P30-CA14051/CA/NCI NIH HHS/ -- R01 EY024259/EY/NEI NIH HHS/ -- R01-CA133404/CA/NCI NIH HHS/ -- R01-GM34277/GM/NIGMS NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- T32 GM008313/GM/NIGMS NIH HHS/ -- T32GM007753/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Apr 9;520(7546):186-91. doi: 10.1038/nature14299. Epub 2015 Apr 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA [2] Society of Fellows, Harvard University, Cambridge, Massachusetts 02138, USA. ; 1] Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA [2] Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. ; 1] Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA [2] Graduate Program in Biophysics, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Harvard-MIT Division of Health Sciences and Technology, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA [2] McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [3] Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. ; 1] Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA [2] Department of Systems Biology, Harvard Medical School, Boston, Massachusetts 02115, USA. ; Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. ; Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA. ; 1] David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [2] Computational and Systems Biology Graduate Program, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. ; National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland 20894, USA. ; 1] Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [2] David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. ; 1] Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA [2] McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [3] Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [4] Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25830891" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; CRISPR-Associated Proteins/genetics/*metabolism ; Cholesterol/blood/metabolism ; Gene Targeting ; Genetic Engineering/*methods ; Genome/*genetics ; Liver/metabolism/physiology ; Male ; Mice ; Mice, Inbred C57BL ; Proprotein Convertases/biosynthesis/blood/deficiency/genetics ; Serine Endopeptidases/biosynthesis/blood/deficiency/genetics ; Staphylococcus aureus/*enzymology/genetics ; Substrate Specificity
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  • 47
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    Nature Publishing Group (NPG)
    Publication Date: 2015-10-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2015 Oct 8;526(7572):163. doi: 10.1038/526163a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26450020" target="_blank"〉PubMed〈/a〉
    Keywords: *Bias (Epidemiology) ; *Cognition ; Crowdsourcing ; Humans ; Reproducibility of Results ; Research Design ; Research Personnel/*psychology ; Statistics as Topic/*standards ; *Thinking
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  • 48
    Publication Date: 2015-05-15
    Description: The tumour microenvironment may contribute to tumorigenesis owing to mechanical forces such as fibrotic stiffness or mechanical pressure caused by the expansion of hyper-proliferative cells. Here we explore the contribution of the mechanical pressure exerted by tumour growth onto non-tumorous adjacent epithelium. In the early stage of mouse colon tumour development in the Notch(+)Apc(+/1638N) mouse model, we observed mechanistic pressure stress in the non-tumorous epithelial cells caused by hyper-proliferative adjacent crypts overexpressing active Notch, which is associated with increased Ret and beta-catenin signalling. We thus developed a method that allows the delivery of a defined mechanical pressure in vivo, by subcutaneously inserting a magnet close to the mouse colon. The implanted magnet generated a magnetic force on ultra-magnetic liposomes, stabilized in the mesenchymal cells of the connective tissue surrounding colonic crypts after intravenous injection. The magnetically induced pressure quantitatively mimicked the endogenous early tumour growth stress in the order of 1,200 Pa, without affecting tissue stiffness, as monitored by ultrasound strain imaging and shear wave elastography. The exertion of pressure mimicking that of tumour growth led to rapid Ret activation and downstream phosphorylation of beta-catenin on Tyr654, imparing its interaction with the E-cadherin in adherens junctions, and which was followed by beta-catenin nuclear translocation after 15 days. As a consequence, increased expression of beta-catenin-target genes was observed at 1 month, together with crypt enlargement accompanying the formation of early tumorous aberrant crypt foci. Mechanical activation of the tumorigenic beta-catenin pathway suggests unexplored modes of tumour propagation based on mechanical signalling pathways in healthy epithelial cells surrounding the tumour, which may contribute to tumour heterogeneity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fernandez-Sanchez, Maria Elena -- Barbier, Sandrine -- Whitehead, Joanne -- Bealle, Gaelle -- Michel, Aude -- Latorre-Ossa, Heldmuth -- Rey, Colette -- Fouassier, Laura -- Claperon, Audrey -- Brulle, Laura -- Girard, Elodie -- Servant, Nicolas -- Rio-Frio, Thomas -- Marie, Helene -- Lesieur, Sylviane -- Housset, Chantal -- Gennisson, Jean-Luc -- Tanter, Mickael -- Menager, Christine -- Fre, Silvia -- Robine, Sylvie -- Farge, Emmanuel -- England -- Nature. 2015 Jul 2;523(7558):92-5. doi: 10.1038/nature14329. Epub 2015 May 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut Curie, Centre de Recherche, PSL Research University, CNRS UMR 168, Physicochimie Curie Mechanics and Genetics of Embryonic and Tumour Development, INSERM, Fondation Pierre-Gilles de Gennes, F-75005 Paris, France. ; UPMC, Sorbonne Universites, Laboratoire PHENIX Physico-chimie des Electrolytes et Nanosystemes Interfaciaux, CNRS UMR 8234, F-75005 Paris, France. ; Langevin Institut, Waves and Images ESPCI ParisTech, PSL Research University, CNRS UMR7587, Inserm U979. F-75005 Paris, France. ; Sorbonne Universites, UPMC and INSERM, UMR-S 938, CDR Saint-Antoine, F-75012 Paris, France. ; CNRS UMR3666/INSERM U1143, Endocytic Trafficking and Therapeutic Delivery, Institut Curie, Centre de Recherche, F-75005 Paris, France. ; Bioinformatic platform, U900, Institut Curie, MINES ParisTech, F-75005 Paris, France. ; Next-generation sequencing platform, Institut Curie, F-75005 Paris, France. ; CNRS UMR 8612, Laboratoire Physico-Chimie des Systemes Polyphases, Institut Galien Paris-Sud, LabEx LERMIT, Faculte de Pharmacie, Universite Paris-Sud, 92 296 Chatenay-Malabry, France. ; CNRS UMR 3215/INSERM U934, Unite de Genetique et Biologie du Developpement, Notch Signaling in Stem Cells and Tumors, Institut Curie, Centre de Recherche, F-75005 Paris, France. ; CNRS UMR144, Compartimentation et dynamique cellulaires, Morphogenesis and Cell Signalling Institut Curie, Centre de Recherche, F-75005 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25970250" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Animals ; Carcinogenesis/*pathology ; Colonic Neoplasms/*physiopathology ; Epithelial Cells/cytology/pathology ; Female ; Gene Expression Regulation, Neoplastic ; Magnets ; Male ; Metal Nanoparticles ; Mice ; Mice, Inbred C57BL ; Phosphorylation ; *Pressure ; Proto-Oncogene Proteins c-ret/metabolism ; Receptors, Notch/genetics/metabolism ; Signal Transduction ; *Tumor Microenvironment ; beta Catenin/*genetics/metabolism
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  • 49
    Publication Date: 2015-04-08
    Description: Regulation of protein synthesis is fundamental for all aspects of eukaryotic biology by controlling development, homeostasis and stress responses. The 13-subunit, 800-kilodalton eukaryotic initiation factor 3 (eIF3) organizes initiation factor and ribosome interactions required for productive translation. However, current understanding of eIF3 function does not explain genetic evidence correlating eIF3 deregulation with tissue-specific cancers and developmental defects. Here we report the genome-wide discovery of human transcripts that interact with eIF3 using photoactivatable ribonucleoside-enhanced crosslinking and immunoprecipitation (PAR-CLIP). eIF3 binds to a highly specific program of messenger RNAs involved in cell growth control processes, including cell cycling, differentiation and apoptosis, via the mRNA 5' untranslated region. Surprisingly, functional analysis of the interaction between eIF3 and two mRNAs encoding the cell proliferation regulators c-JUN and BTG1 reveals that eIF3 uses different modes of RNA stem-loop binding to exert either translational activation or repression. Our findings illuminate a new role for eIF3 in governing a specialized repertoire of gene expression and suggest that binding of eIF3 to specific mRNAs could be targeted to control carcinogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4603833/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4603833/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Amy S Y -- Kranzusch, Philip J -- Cate, Jamie H D -- P50 GM102706/GM/NIGMS NIH HHS/ -- S10 RR027303/RR/NCRR NIH HHS/ -- S10 RR029668/RR/NCRR NIH HHS/ -- S10RR025622/RR/NCRR NIH HHS/ -- S10RR027303/RR/NCRR NIH HHS/ -- S10RR029668/RR/NCRR NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Jun 4;522(7554):111-4. doi: 10.1038/nature14267. Epub 2015 Apr 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Molecular &Cell Biology, University of California, Berkeley, Berkeley, California 94720, USA [2] Center for RNA Systems Biology, University of California, Berkeley, Berkeley, California 94720, USA. ; 1] Department of Molecular &Cell Biology, University of California, Berkeley, Berkeley, California 94720, USA [2] Howard Hughes Medical Institute (HHMI), University of California, Berkeley, Berkeley, California 94720, USA. ; 1] Department of Molecular &Cell Biology, University of California, Berkeley, Berkeley, California 94720, USA [2] Center for RNA Systems Biology, University of California, Berkeley, Berkeley, California 94720, USA [3] Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, USA [4] Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25849773" target="_blank"〉PubMed〈/a〉
    Keywords: 5' Untranslated Regions/genetics ; Apoptosis ; Binding Sites ; Cell Differentiation ; Cell Line ; Cell Proliferation/genetics ; Cross-Linking Reagents ; *Down-Regulation ; Eukaryotic Initiation Factor-3/chemistry/*metabolism ; Humans ; Immunoprecipitation ; Neoplasm Proteins/metabolism ; Neoplasms/metabolism/pathology ; Organ Specificity ; *Peptide Chain Initiation, Translational ; Phenotype ; Proto-Oncogene Proteins c-jun/metabolism ; RNA, Messenger/*genetics/*metabolism ; Reproducibility of Results ; Ribonucleosides ; Ribosomes/metabolism ; Substrate Specificity ; Transcriptome
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  • 50
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    Nature Publishing Group (NPG)
    Publication Date: 2015-08-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2015 Jul 30;523(7562):502. doi: 10.1038/523502a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26223589" target="_blank"〉PubMed〈/a〉
    Keywords: *Communication ; Contact Tracing ; Coronavirus Infections/epidemiology/psychology/*transmission ; Disease Outbreaks/prevention & control/*statistics & numerical data ; *Fear ; Hemorrhagic Fever, Ebola/epidemiology/psychology/transmission ; Hospitals ; Humans ; Patient Isolation ; *Public Opinion ; Quarantine ; Reproducibility of Results ; Republic of Korea/epidemiology ; Risk Assessment
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 51
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    Nature Publishing Group (NPG)
    Publication Date: 2015-06-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2015 Jun 18;522(7556):256. doi: 10.1038/522256a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26085234" target="_blank"〉PubMed〈/a〉
    Keywords: National Institutes of Health (U.S.) ; Periodicals as Topic/standards ; Public Opinion ; Quality Control ; Reproducibility of Results ; Research/*economics/*standards ; *Risk Management ; United States
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  • 52
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    Nature Publishing Group (NPG)
    Publication Date: 2015-12-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2015 Dec 24;528(7583):459-67. doi: 10.1038/528459a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26701036" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics, Opioid/metabolism ; Astronomy ; Benzylisoquinolines/chemistry/metabolism ; Bias (Epidemiology) ; CRISPR-Cas Systems/genetics ; Diplomacy ; Electric Conductivity ; Electronics/instrumentation ; Embryo Research/ethics ; Genetic Engineering/ethics ; Genome, Human/genetics ; Genomics ; Global Warming/economics/*legislation & jurisprudence/prevention & control ; History, 21st Century ; History, Ancient ; Human Migration/history ; Humans ; Iran ; Language/history ; Nanotubes, Carbon ; Nuclear Weapons/legislation & jurisprudence ; Paris ; Pluto ; Prejudice ; Psychology/standards ; Reproducibility of Results ; Reproductive Medicine/ethics ; Sexual Harassment/prevention & control ; Space Flight/economics/trends ; Synthetic Biology/methods ; Temperature ; Yeasts/genetics/metabolism
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  • 53
    Publication Date: 2015-05-15
    Description: Recursive splicing is a process in which large introns are removed in multiple steps by re-splicing at ratchet points--5' splice sites recreated after splicing. Recursive splicing was first identified in the Drosophila Ultrabithorax (Ubx) gene and only three additional Drosophila genes have since been experimentally shown to undergo recursive splicing. Here we identify 197 zero nucleotide exon ratchet points in 130 introns of 115 Drosophila genes from total RNA sequencing data generated from developmental time points, dissected tissues and cultured cells. The sequential nature of recursive splicing was confirmed by identification of lariat introns generated by splicing to and from the ratchet points. We also show that recursive splicing is a constitutive process, that depletion of U2AF inhibits recursive splicing, and that the sequence and function of ratchet points are evolutionarily conserved in Drosophila. Finally, we identify four recursively spliced human genes, one of which is also recursively spliced in Drosophila. Together, these results indicate that recursive splicing is commonly used in Drosophila, occurs in humans, and provides insight into the mechanisms by which some large introns are removed.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4529404/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4529404/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duff, Michael O -- Olson, Sara -- Wei, Xintao -- Garrett, Sandra C -- Osman, Ahmad -- Bolisetty, Mohan -- Plocik, Alex -- Celniker, Susan E -- Graveley, Brenton R -- R01 GM095296/GM/NIGMS NIH HHS/ -- R01GM095296/GM/NIGMS NIH HHS/ -- U54 HG006994/HG/NHGRI NIH HHS/ -- U54HG006994/HG/NHGRI NIH HHS/ -- England -- Nature. 2015 May 21;521(7552):376-9. doi: 10.1038/nature14475. Epub 2015 May 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Genome Sciences, Institute for Systems Genomics, University of Connecticut Health Center, Farmington, Connecticut 06030, USA. ; Department of Genome Dynamics, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25970244" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cells, Cultured ; Drosophila melanogaster/*genetics ; Exons/genetics ; Female ; Genes, Insect/genetics ; Genome, Insect/*genetics ; Humans ; Introns/genetics ; Male ; Nuclear Proteins/deficiency/genetics/metabolism ; Nucleotides/*genetics ; RNA Splice Sites/genetics ; RNA Splicing/*genetics ; Reproducibility of Results ; Ribonucleoproteins/deficiency/genetics/metabolism
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  • 54
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2015-07-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kohane, Isaac S -- New York, N.Y. -- Science. 2015 Jul 3;349(6243):37-8. doi: 10.1126/science.aab1328. Epub 2015 Jul 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomedical Informatics, Harvard Medical School, Boston, MA 02115, USA. isaac_kohane@harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26138968" target="_blank"〉PubMed〈/a〉
    Keywords: *Evidence-Based Medicine ; Genomics/trends ; *Health Policy ; Humans ; Medical Record Linkage ; Reproducibility of Results ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 55
    Publication Date: 2015-06-06
    Description: Circadian and metabolic physiology are intricately intertwined, as illustrated by Rev-erbalpha, a transcription factor (TF) that functions both as a core repressive component of the cell-autonomous clock and as a regulator of metabolic genes. Here, we show that Rev-erbalpha modulates the clock and metabolism by different genomic mechanisms. Clock control requires Rev-erbalpha to bind directly to the genome at its cognate sites, where it competes with activating ROR TFs. By contrast, Rev-erbalpha regulates metabolic genes primarily by recruiting the HDAC3 co-repressor to sites to which it is tethered by cell type-specific transcription factors. Thus, direct competition between Rev-erbalpha and ROR TFs provides a universal mechanism for self-sustained control of the molecular clock across all tissues, whereas Rev-erbalpha uses lineage-determining factors to convey a tissue-specific epigenomic rhythm that regulates metabolism tailored to the specific need of that tissue.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4613749/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4613749/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Yuxiang -- Fang, Bin -- Emmett, Matthew J -- Damle, Manashree -- Sun, Zheng -- Feng, Dan -- Armour, Sean M -- Remsberg, Jarrett R -- Jager, Jennifer -- Soccio, Raymond E -- Steger, David J -- Lazar, Mitchell A -- F30 DK104513/DK/NIDDK NIH HHS/ -- F32 DK102284/DK/NIDDK NIH HHS/ -- K08 DK094968/DK/NIDDK NIH HHS/ -- P30 DK019525/DK/NIDDK NIH HHS/ -- P30 DK050306/DK/NIDDK NIH HHS/ -- P30 DK19525/DK/NIDDK NIH HHS/ -- R00 DK099443/DK/NIDDK NIH HHS/ -- R01 DK045586/DK/NIDDK NIH HHS/ -- R01 DK098542/DK/NIDDK NIH HHS/ -- R01 DK45586/DK/NIDDK NIH HHS/ -- T32 GM0008275/GM/NIGMS NIH HHS/ -- T32 GM008275/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Jun 26;348(6242):1488-92. doi: 10.1126/science.aab3021. Epub 2015 Jun 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Department of Genetics, and the Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. ; Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Department of Genetics, and the Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. Department of Molecular and Cellular Biology, Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA. ; Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Department of Genetics, and the Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. lazar@mail.med.upenn.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26044300" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CLOCK Proteins/*genetics ; Circadian Clocks/*genetics ; Circadian Rhythm/*genetics ; *Gene Expression Regulation ; Hepatocyte Nuclear Factor 6/metabolism ; Histone Deacetylases/*metabolism ; Lipid Metabolism/genetics ; Liver/metabolism ; Male ; Metabolism/*genetics ; Mice, Inbred C57BL ; Mice, Knockout ; Nuclear Receptor Subfamily 1, Group D, Member 1/genetics/*metabolism ; Nuclear Receptor Subfamily 1, Group F, Member 1/metabolism ; Organ Specificity ; Protein Binding ; Tissue Distribution
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  • 56
    Publication Date: 2015-11-07
    Description: The sense of smell allows chemicals to be perceived as diverse scents. We used single-neuron RNA sequencing to explore the developmental mechanisms that shape this ability as nasal olfactory neurons mature in mice. Most mature neurons expressed only one of the ~1000 odorant receptor genes (Olfrs) available, and at a high level. However, many immature neurons expressed low levels of multiple Olfrs. Coexpressed Olfrs localized to overlapping zones of the nasal epithelium, suggesting regional biases, but not to single genomic loci. A single immature neuron could express Olfrs from up to seven different chromosomes. The mature state in which expression of Olfr genes is restricted to one per neuron emerges over a developmental progression that appears to be independent of neuronal activity involving sensory transduction molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hanchate, Naresh K -- Kondoh, Kunio -- Lu, Zhonghua -- Kuang, Donghui -- Ye, Xiaolan -- Qiu, Xiaojie -- Pachter, Lior -- Trapnell, Cole -- Buck, Linda B -- DP2 HD088158/DP/NCCDPHP CDC HHS/ -- R01 DC009324/DC/NIDCD NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Dec 4;350(6265):1251-5. doi: 10.1126/science.aad2456. Epub 2015 Nov 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA. ; Department of Genome Sciences, University of Washington, Seattle, WA 98115, USA. Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98115, USA. ; Departments of Mathematics, Molecular and Cell Biology, and Electrical Engineering and Computer Sciences, University of California-Berkeley, Berkeley, CA 94720, USA. ; Department of Genome Sciences, University of Washington, Seattle, WA 98115, USA. coletrap@uw.edu lbuck@fhcrc.org. ; Howard Hughes Medical Institute, Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA. coletrap@uw.edu lbuck@fhcrc.org.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26541607" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Basic Helix-Loop-Helix Transcription Factors/genetics ; Cyclic Nucleotide-Gated Cation Channels/genetics ; *Gene Expression Regulation, Developmental ; Genetic Loci ; Genetic Markers ; Mice ; Mice, Inbred C57BL ; Neural Stem Cells/*metabolism ; Neurogenesis/*genetics ; Olfactory Mucosa/innervation ; Olfactory Receptor Neurons/*metabolism ; Receptors, Odorant/*genetics ; Sequence Analysis, RNA ; Single-Cell Analysis ; Smell/*genetics ; Transcriptome
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  • 57
    Publication Date: 2015-02-01
    Description: When exposed to antigens, naive B cells differentiate into different types of effector cells: antibody-producing plasma cells, germinal center cells, or memory cells. Whether an individual naive B cell can produce all of these different cell fates remains unclear. Using a limiting dilution approach, we found that many individual naive B cells produced only one type of effector cell subset, whereas others produced all subsets. The capacity to differentiate into multiple subsets was a characteristic of clonal populations that divided many times and resisted apoptosis, but was independent of isotype switching. Antigen receptor affinity also influenced effector cell differentiation. These findings suggest that diverse effector cell types arise in the primary immune response as a result of heterogeneity in responses by individual naive B cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4412594/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4412594/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taylor, Justin J -- Pape, Kathryn A -- Steach, Holly R -- Jenkins, Marc K -- P01 AI035296/AI/NIAID NIH HHS/ -- P01AI035296/AI/NIAID NIH HHS/ -- P30 CA077598/CA/NCI NIH HHS/ -- R01 AI027998/AI/NIAID NIH HHS/ -- R01 AI039614/AI/NIAID NIH HHS/ -- R01AI036914/AI/NIAID NIH HHS/ -- R37AI027998/AI/NIAID NIH HHS/ -- T32 CA009138/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2015 Feb 13;347(6223):784-7. doi: 10.1126/science.aaa1342. Epub 2015 Jan 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55455, USA. Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98019, USA. jtaylor3@fhcrc.org. ; Department of Microbiology, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55455, USA. ; Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98019, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25636798" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody-Producing Cells/*immunology ; Antigens/immunology ; Apoptosis/*immunology ; B-Lymphocyte Subsets/*immunology ; B-Lymphocytes/*immunology ; Cell Differentiation ; *Immunity, Humoral ; Immunoglobulin Class Switching ; Mice ; Mice, Inbred C57BL
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  • 58
    Publication Date: 2015-06-13
    Description: Blood gas and tissue pH regulation depend on the ability of the brain to sense CO2 and/or H(+) and alter breathing appropriately, a homeostatic process called central respiratory chemosensitivity. We show that selective expression of the proton-activated receptor GPR4 in chemosensory neurons of the mouse retrotrapezoid nucleus (RTN) is required for CO2-stimulated breathing. Genetic deletion of GPR4 disrupted acidosis-dependent activation of RTN neurons, increased apnea frequency, and blunted ventilatory responses to CO2. Reintroduction of GPR4 into RTN neurons restored CO2-dependent RTN neuronal activation and rescued the ventilatory phenotype. Additional elimination of TASK-2 (K(2P)5), a pH-sensitive K(+) channel expressed in RTN neurons, essentially abolished the ventilatory response to CO2. The data identify GPR4 and TASK-2 as distinct, parallel, and essential central mediators of respiratory chemosensitivity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kumar, Natasha N -- Velic, Ana -- Soliz, Jorge -- Shi, Yingtang -- Li, Keyong -- Wang, Sheng -- Weaver, Janelle L -- Sen, Josh -- Abbott, Stephen B G -- Lazarenko, Roman M -- Ludwig, Marie-Gabrielle -- Perez-Reyes, Edward -- Mohebbi, Nilufar -- Bettoni, Carla -- Gassmann, Max -- Suply, Thomas -- Seuwen, Klaus -- Guyenet, Patrice G -- Wagner, Carsten A -- Bayliss, Douglas A -- HL074011/HL/NHLBI NIH HHS/ -- HL108609/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2015 Jun 12;348(6240):1255-60. doi: 10.1126/science.aaa0922. Epub 2015 Jun 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA. ; Institute of Physiology, University of Zurich, Zurich, CH-8057, Switzerland. ; Institute of Veterinary Physiology, University of Zurich, Zurich, CH-8057, Switzerland. Centre de Recherche du CHU de Quebec, Departement de Pediatrie, Faculte de Medecine, Universite Laval, Quebec, QC, Canada. ; Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA. Department of Physiology, Hebei Medical University, Shijiazhuang, Hebei, 050017, China. ; Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA. School of Medical Sciences, University of New South Wales, New South Wales 2052, Australia. Department of Neurology, Harvard Medical School and Beth Israel Deaconess Medical Center, Boston, MA, USA. ; Novartis Institutes for Biomedical Research, Basel, CH-4002, Switzerland. ; Institute of Veterinary Physiology, University of Zurich, Zurich, CH-8057, Switzerland. ; Institute of Physiology, University of Zurich, Zurich, CH-8057, Switzerland. Wagnerca@access.uzh.ch bayliss@virginia.edu. ; Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA. Wagnerca@access.uzh.ch bayliss@virginia.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26068853" target="_blank"〉PubMed〈/a〉
    Keywords: Acidosis, Respiratory/genetics/physiopathology ; Animals ; Carbon Dioxide/*physiology ; Female ; Gene Deletion ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Neurons/metabolism/physiology ; Potassium Channels, Tandem Pore Domain/genetics/*physiology ; Receptors, G-Protein-Coupled/antagonists & inhibitors/genetics/*physiology ; *Respiration ; Trapezoid Body/cytology/metabolism/*physiology
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  • 59
    Publication Date: 2015-04-25
    Description: Inflammatory CD4(+) T cell responses to self or commensal bacteria underlie the pathogenesis of autoimmunity and inflammatory bowel disease (IBD), respectively. Although selection of self-specific T cells in the thymus limits responses to mammalian tissue antigens, the mechanisms that control selection of commensal bacteria-specific T cells remain poorly understood. Here, we demonstrate that group 3 innate lymphoid cell (ILC3)-intrinsic expression of major histocompatibility complex class II (MHCII) is regulated similarly to thymic epithelial cells and that MHCII(+) ILC3s directly induce cell death of activated commensal bacteria-specific T cells. Further, MHCII on colonic ILC3s was reduced in pediatric IBD patients. Collectively, these results define a selection pathway for commensal bacteria-specific CD4(+) T cells in the intestine and suggest that this process is dysregulated in human IBD.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4449822/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4449822/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hepworth, Matthew R -- Fung, Thomas C -- Masur, Samuel H -- Kelsen, Judith R -- McConnell, Fiona M -- Dubrot, Juan -- Withers, David R -- Hugues, Stephanie -- Farrar, Michael A -- Reith, Walter -- Eberl, Gerard -- Baldassano, Robert N -- Laufer, Terri M -- Elson, Charles O -- Sonnenberg, Gregory F -- DK071176/DK/NIDDK NIH HHS/ -- DP5 OD012116/OD/NIH HHS/ -- DP5OD012116/OD/NIH HHS/ -- UL1-RR024134/RR/NCRR NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2015 May 29;348(6238):1031-5. doi: 10.1126/science.aaa4812. Epub 2015 Apr 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jill Roberts Institute for Research in Inflammatory Bowel Disease, Joan and Sanford I. Weill Department of Medicine, Gastroenterology Division, and Department of Microbiology and Immunology, Weill Cornell Medical College, Cornell University, New York, NY, USA. ; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Joan and Sanford I. Weill Department of Medicine, Gastroenterology Division, and Department of Microbiology and Immunology, Weill Cornell Medical College, Cornell University, New York, NY, USA. Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. ; Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA, USA. ; Medical Research Council, Centre for Immune Regulation, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK. ; Department of Pathology and Immunology, University of Geneva Medical School, Geneva, Switzerland. ; Center for Immunology, Department of Laboratory Medicine and Pathology, University of Minnesota, MN, USA. ; Institut Pasteur, Microenvironment and Immunity Unit, Paris, France. ; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. Philadelphia Veterans Affairs Medical Center, Philadelphia, PA, USA. ; Departments of Medicine and Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA. ; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Joan and Sanford I. Weill Department of Medicine, Gastroenterology Division, and Department of Microbiology and Immunology, Weill Cornell Medical College, Cornell University, New York, NY, USA. gfsonnenberg@med.cornell.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25908663" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis/immunology ; Autoimmunity ; Bacteria/*immunology ; CD4-Positive T-Lymphocytes/*immunology ; Colon/*microbiology ; Female ; Flagellin/genetics/immunology ; Histocompatibility Antigens Class II/*immunology ; Humans ; *Immunity, Innate ; Inflammatory Bowel Diseases/immunology/*microbiology ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred C57BL ; Symbiosis ; Thymus Gland/immunology
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  • 60
    Publication Date: 2015-10-31
    Description: Infections and inflammation can lead to cachexia and wasting of skeletal muscle and fat tissue by as yet poorly understood mechanisms. We observed that gut colonization of mice by a strain of Escherichia coli prevents wasting triggered by infections or physical damage to the intestine. During intestinal infection with the pathogen Salmonella Typhimurium or pneumonic infection with Burkholderia thailandensis, the presence of this E. coli did not alter changes in host metabolism, caloric uptake, or inflammation but instead sustained signaling of the insulin-like growth factor 1/phosphatidylinositol 3-kinase/AKT pathway in skeletal muscle, which is required for prevention of muscle wasting. This effect was dependent on engagement of the NLRC4 inflammasome. Therefore, this commensal promotes tolerance to diverse diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4732872/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4732872/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schieber, Alexandria M Palaferri -- Lee, Yujung Michelle -- Chang, Max W -- Leblanc, Mathias -- Collins, Brett -- Downes, Michael -- Evans, Ronald M -- Ayres, Janelle S -- CA014195/CA/NCI NIH HHS/ -- DK0577978/DK/NIDDK NIH HHS/ -- P30 CA014195/CA/NCI NIH HHS/ -- R01 AI114929/AI/NIAID NIH HHS/ -- R01AI114929/AI/NIAID NIH HHS/ -- R37 DK057978/DK/NIDDK NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Oct 30;350(6260):558-63. doi: 10.1126/science.aac6468.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nomis Center for Immunobiology and Microbial Pathogenesis, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA. ; Integrative Genomics and Bioinformatics Core, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA. ; Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA. ; Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA. Howard Hughes Medical Institute, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA. ; Nomis Center for Immunobiology and Microbial Pathogenesis, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA. jayres@salk.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26516283" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis Regulatory Proteins/metabolism ; Biosynthetic Pathways ; Burkholderia ; Burkholderia Infections/complications ; Calcium-Binding Proteins/metabolism ; Escherichia coli/*immunology ; Inflammasomes/*immunology ; Insulin-Like Growth Factor I/*metabolism ; Intestines/*microbiology ; Mice ; Mice, Inbred C57BL ; *Microbiota ; Muscle, Skeletal/*metabolism ; Phosphatidylinositol 3-Kinase/metabolism ; Proto-Oncogene Proteins c-akt/metabolism ; Salmonella Infections/complications ; Salmonella typhimurium ; Wasting Syndrome/etiology/*immunology/*microbiology
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  • 61
    Publication Date: 2015-09-05
    Description: Growing up on a dairy farm protects children from allergy, hay fever, and asthma. A mechanism linking exposure to this endotoxin (bacterial lipopolysaccharide)-rich environment with protection has remained elusive. Here we show that chronic exposure to low-dose endotoxin or farm dust protects mice from developing house dust mite (HDM)-induced asthma. Endotoxin reduced epithelial cell cytokines that activate dendritic cells (DCs), thus suppressing type 2 immunity to HDMs. Loss of the ubiquitin-modifying enzyme A20 in lung epithelium abolished the protective effect. A single-nucleotide polymorphism in the gene encoding A20 was associated with allergy and asthma risk in children growing up on farms. Thus, the farming environment protects from allergy by modifying the communication between barrier epithelial cells and DCs through A20 induction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schuijs, Martijn J -- Willart, Monique A -- Vergote, Karl -- Gras, Delphine -- Deswarte, Kim -- Ege, Markus J -- Madeira, Filipe Branco -- Beyaert, Rudi -- van Loo, Geert -- Bracher, Franz -- von Mutius, Erika -- Chanez, Pascal -- Lambrecht, Bart N -- Hammad, Hamida -- New York, N.Y. -- Science. 2015 Sep 4;349(6252):1106-10. doi: 10.1126/science.aac6623.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Immunoregulation, VIB Inflammation Research Center, Ghent, Belgium. Department of Internal Medicine, Ghent University, Ghent, Belgium. ; Department of Respiratory Medicine, Assistance Publique Hopitaux de Marseille, UMR INSERM U1067 CNRS 7333, Aix Marseille University, Marseille, France. ; Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universitat, Munich, Germany. ; Unit of Molecular Signal Transduction, VIB Inflammation Research Center, Ghent, Belgium. Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium. ; Center for Drug Research, Department of Pharmacy, Ludwig Maximilians University, Butenandtstrasse 5-13, D-81377 Munich, Germany. ; Laboratory of Immunoregulation, VIB Inflammation Research Center, Ghent, Belgium. Department of Internal Medicine, Ghent University, Ghent, Belgium. Department of Pulmonary Medicine, Erasmus Medical Center, Rotterdam, Netherlands. hamida.hammad@ugent.be bart.lambrecht@ugent.be. ; Laboratory of Immunoregulation, VIB Inflammation Research Center, Ghent, Belgium. Department of Internal Medicine, Ghent University, Ghent, Belgium. hamida.hammad@ugent.be bart.lambrecht@ugent.be.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26339029" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Asthma/immunology/prevention & control ; Cells, Cultured ; Child ; DNA-Binding Proteins/*biosynthesis ; Dairying ; Dendritic Cells/immunology ; Dust/*immunology ; Female ; Humans ; Hygiene Hypothesis ; Hypersensitivity/enzymology/immunology/*prevention & control ; Inhalation Exposure ; Intracellular Signaling Peptides and Proteins/*biosynthesis ; Lipopolysaccharides/*immunology ; Lung/*enzymology/immunology ; Mice ; Mice, Inbred C57BL ; Nuclear Proteins/*biosynthesis ; Pyroglyphidae/*immunology ; Respiratory Mucosa/*enzymology/immunology
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  • 62
    Publication Date: 2015-11-07
    Description: Antibodies targeting CTLA-4 have been successfully used as cancer immunotherapy. We find that the antitumor effects of CTLA-4 blockade depend on distinct Bacteroides species. In mice and patients, T cell responses specific for B. thetaiotaomicron or B. fragilis were associated with the efficacy of CTLA-4 blockade. Tumors in antibiotic-treated or germ-free mice did not respond to CTLA blockade. This defect was overcome by gavage with B. fragilis, by immunization with B. fragilis polysaccharides, or by adoptive transfer of B. fragilis-specific T cells. Fecal microbial transplantation from humans to mice confirmed that treatment of melanoma patients with antibodies against CTLA-4 favored the outgrowth of B. fragilis with anticancer properties. This study reveals a key role for Bacteroidales in the immunostimulatory effects of CTLA-4 blockade.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4721659/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4721659/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vetizou, Marie -- Pitt, Jonathan M -- Daillere, Romain -- Lepage, Patricia -- Waldschmitt, Nadine -- Flament, Caroline -- Rusakiewicz, Sylvie -- Routy, Bertrand -- Roberti, Maria P -- Duong, Connie P M -- Poirier-Colame, Vichnou -- Roux, Antoine -- Becharef, Sonia -- Formenti, Silvia -- Golden, Encouse -- Cording, Sascha -- Eberl, Gerard -- Schlitzer, Andreas -- Ginhoux, Florent -- Mani, Sridhar -- Yamazaki, Takahiro -- Jacquelot, Nicolas -- Enot, David P -- Berard, Marion -- Nigou, Jerome -- Opolon, Paule -- Eggermont, Alexander -- Woerther, Paul-Louis -- Chachaty, Elisabeth -- Chaput, Nathalie -- Robert, Caroline -- Mateus, Christina -- Kroemer, Guido -- Raoult, Didier -- Boneca, Ivo Gomperts -- Carbonnel, Franck -- Chamaillard, Mathias -- Zitvogel, Laurence -- R01 CA161879/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2015 Nov 27;350(6264):1079-84. doi: 10.1126/science.aad1329. Epub 2015 Nov 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. INSERM U1015, GRCC, Villejuif, France. University of Paris Sud XI, Kremlin-Bicetre, France. ; Institut National de la Recherche Agronomique (INRA), Micalis-UMR1319, 78360 Jouy-en-Josas, France. ; University of Lille, CNRS, INSERM, Centre Hospitalier Regional Universitaire de Lille, Institut Pasteur de Lille, U1019, UMR 8204, Centre d'Infection et d'Immunite de Lille (CIIL), F-59000 Lille, France. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. INSERM U1015, GRCC, Villejuif, France. Center of Clinical Investigations in Biotherapies of Cancer 1428, Villejuif, France. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. INSERM U1015, GRCC, Villejuif, France. University of Paris Sud XI, Kremlin-Bicetre, France. Center of Clinical Investigations in Biotherapies of Cancer 1428, Villejuif, France. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. INSERM U1015, GRCC, Villejuif, France. Universite Paris Descartes, Sorbonne Paris Cite, Paris, France. ; Department of Radiation Oncology, New York University, New York, NY, USA. ; Microenvironment and Immunity Unit, Institut Pasteur, Paris, France. ; Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore. ; Department of Genetics and Department of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. Universite Paris Descartes, Sorbonne Paris Cite, Paris, France. Metabolomics Platform, GRCC, Villejuif, France. ; Animalerie Centrale, Institut Pasteur, Paris, France. ; Centre National de la Recherche Scientifique, Institut de Pharmacologie et de Biologie Structurale (IPBS), Toulouse, France. Universite de Toulouse, Universite Paul Sabatier, IPBS, F-31077 Toulouse, France. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. INSERM U1015, GRCC, Villejuif, France. Department of Medical Oncology, Institut Gustave Roussy, Villejuif, France. ; Service de microbiologie, GRCC, Villejuif, France. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. Laboratory of Immunomonitoring in Oncology, UMS 3655 CNRS/US 23 INSERM, GRCC, Villejuif, France. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. Department of Medical Oncology, Institut Gustave Roussy, Villejuif, France. INSERM U981, GRCC, Villejuif, France. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. Department of Medical Oncology, Institut Gustave Roussy, Villejuif, France. ; Universite Paris Descartes, Sorbonne Paris Cite, Paris, France. Metabolomics Platform, GRCC, Villejuif, France. INSERM U848, Villejuif, France. Equipe 11 Labellisee-Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, INSERM U1138, Paris, France. Pole de Biologie, Hopital Europeen Georges Pompidou, Assistance Publique-Hopitaux de Paris, Paris, France. ; Unite des Rickettsies, Faculte de Medecine, Universite de la Mediterranee, Marseille, France. ; Institut Pasteur, Unit of Biology and Genetics of the Bacterial Cell Wall, Paris, France. INSERM, Equipe Avenir, Paris, France. ; University of Paris Sud XI, Kremlin-Bicetre, France. Gastroenterology Department, Hopital Bicetre, Assistance Publique-Hopitaux de Paris, Paris, France. ; Institut de Cancerologie Gustave Roussy Cancer Campus (GRCC), 114 rue Edouard Vaillant, 94805 Villejuif, France. INSERM U1015, GRCC, Villejuif, France. University of Paris Sud XI, Kremlin-Bicetre, France. Center of Clinical Investigations in Biotherapies of Cancer 1428, Villejuif, France. laurence.zitvogel@gustaveroussy.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26541610" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Aged, 80 and over ; Animals ; Anti-Bacterial Agents/pharmacology ; Antibodies, Monoclonal/adverse effects/*therapeutic use ; Bacteroides/*immunology ; CTLA-4 Antigen/*antagonists & inhibitors/immunology ; Dysbiosis/immunology ; Fecal Microbiota Transplantation ; Female ; Gastrointestinal Microbiome/drug effects/*immunology ; Germ-Free Life/immunology ; Humans ; Immunologic Memory ; Immunotherapy ; Intestines/immunology/microbiology ; Male ; Melanoma/*therapy ; Mice ; Mice, Inbred C57BL ; Middle Aged ; Skin Neoplasms/*therapy ; T-Lymphocytes/immunology
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  • 63
    Publication Date: 2015-08-15
    Description: T regulatory cells that express the transcription factor Foxp3 (Foxp3(+) T(regs)) promote tissue homeostasis in several settings. We now report that symbiotic members of the human gut microbiota induce a distinct T(reg) population in the mouse colon, which constrains immuno-inflammatory responses. This induction-which we find to map to a broad, but specific, array of individual bacterial species-requires the transcription factor Rorgamma, paradoxically, in that Rorgamma is thought to antagonize FoxP3 and to promote T helper 17 (T(H)17) cell differentiation. Rorgamma's transcriptional footprint differs in colonic T(regs) and T(H)17 cells and controls important effector molecules. Rorgamma, and the T(regs) that express it, contribute substantially to regulating colonic T(H)1/T(H)17 inflammation. Thus, the marked context-specificity of Rorgamma results in very different outcomes even in closely related cell types.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4700932/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4700932/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sefik, Esen -- Geva-Zatorsky, Naama -- Oh, Sungwhan -- Konnikova, Liza -- Zemmour, David -- McGuire, Abigail Manson -- Burzyn, Dalia -- Ortiz-Lopez, Adriana -- Lobera, Mercedes -- Yang, Jianfei -- Ghosh, Shomir -- Earl, Ashlee -- Snapper, Scott B -- Jupp, Ray -- Kasper, Dennis -- Mathis, Diane -- Benoist, Christophe -- R01 AI110630/AI/NIAID NIH HHS/ -- R01-AI51530/AI/NIAID NIH HHS/ -- R37 AI051530/AI/NIAID NIH HHS/ -- R56 AI110630/AI/NIAID NIH HHS/ -- R56-AI110630/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 Aug 28;349(6251):993-7. doi: 10.1126/science.aaa9420. Epub 2015 Aug 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston 02115, MA, USA. ; Division of Gastroenterology and Hepatology, Brigham and Women's Hospital, Boston, MA 02115, USA, and Department of Medicine, Harvard Medical School, Boston, MA 02115, USA. ; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. ; Tempero Pharmaceuticals, a GSK Company, Cambridge, MA 02115, USA. ; UCB Pharma, Slough, Berkshire, UK. ; Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston 02115, MA, USA. Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA. cbdm@hms.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26272906" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/immunology ; Bacteroidetes/immunology/physiology ; Colitis, Ulcerative/immunology ; Colon/*immunology/microbiology ; Forkhead Transcription Factors/analysis/metabolism ; Homeostasis ; Humans ; *Immunity, Mucosal ; Intestinal Mucosa/*immunology/microbiology ; Mice, Inbred C57BL ; Microbiota/*immunology/physiology ; Nuclear Receptor Subfamily 1, Group F, Member 3/genetics/*metabolism ; Symbiosis ; T-Lymphocyte Subsets/immunology ; T-Lymphocytes, Regulatory/*immunology ; Th17 Cells/immunology ; Transcription, Genetic ; Transcriptome
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  • 64
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2015-01-17
    Description: In optical microscopy, fine structural details are resolved by using refraction to magnify images of a specimen. We discovered that by synthesizing a swellable polymer network within a specimen, it can be physically expanded, resulting in physical magnification. By covalently anchoring specific labels located within the specimen directly to the polymer network, labels spaced closer than the optical diffraction limit can be isotropically separated and optically resolved, a process we call expansion microscopy (ExM). Thus, this process can be used to perform scalable superresolution microscopy with diffraction-limited microscopes. We demonstrate ExM with apparent ~70-nanometer lateral resolution in both cultured cells and brain tissue, performing three-color superresolution imaging of ~10(7) cubic micrometers of the mouse hippocampus with a conventional confocal microscope.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4312537/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4312537/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Fei -- Tillberg, Paul W -- Boyden, Edward S -- 1DP1NS087724/DP/NCCDPHP CDC HHS/ -- 1R01MH103910-01/MH/NIMH NIH HHS/ -- DP1 NS087724/NS/NINDS NIH HHS/ -- R01 MH103910/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2015 Jan 30;347(6221):543-8. doi: 10.1126/science.1260088. Epub 2015 Jan 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Engineering, Massachussetts Institute of Technology (MIT), Cambridge, MA, USA. ; Department of Electrical Engineering and Computer Science, MIT, Cambridge, MA, USA. ; Department of Biological Engineering, Massachussetts Institute of Technology (MIT), Cambridge, MA, USA. Media Lab, MIT, Cambridge, MA, USA. McGovern Institute, MIT, Cambridge, MA, USA. Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, USA. Center for Neurobiological Engineering, MIT, Cambridge, MA, USA. esb@media.mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25592419" target="_blank"〉PubMed〈/a〉
    Keywords: Acrylamide ; Acrylamides ; Acrylates ; Animals ; Coated Pits, Cell-Membrane/*ultrastructure ; Fluorescent Dyes ; Gels ; HEK293 Cells ; Hippocampus/*ultrastructure ; Humans ; Mice, Inbred C57BL ; Mice, Transgenic ; Microscopy/*methods ; Microscopy, Confocal/methods ; Microscopy, Fluorescence/methods ; Microtubules/*ultrastructure ; Optical Imaging/*methods ; Polymers ; Tissue Fixation
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 65
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2015-09-01
    Description: Reproducibility is a defining feature of science, but the extent to which it characterizes current research is unknown. We conducted replications of 100 experimental and correlational studies published in three psychology journals using high-powered designs and original materials when available. Replication effects were half the magnitude of original effects, representing a substantial decline. Ninety-seven percent of original studies had statistically significant results. Thirty-six percent of replications had statistically significant results; 47% of original effect sizes were in the 95% confidence interval of the replication effect size; 39% of effects were subjectively rated to have replicated the original result; and if no bias in original results is assumed, combining original and replication results left 68% with statistically significant effects. Correlational tests suggest that replication success was better predicted by the strength of original evidence than by characteristics of the original and replication teams.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Open Science Collaboration -- New York, N.Y. -- Science. 2015 Aug 28;349(6251):aac4716. doi: 10.1126/science.aac4716.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26315443" target="_blank"〉PubMed〈/a〉
    Keywords: *Behavioral Research ; Confidence Intervals ; Periodicals as Topic ; *Psychology ; Publication Bias ; *Publishing ; Reproducibility of Results ; *Research ; Research Design
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  • 66
    Publication Date: 2015-09-05
    Description: During viral infections, chemokines guide activated effector T cells to infection sites. However, the cells responsible for producing these chemokines and how such chemokines recruit T cells are unknown. Here, we show that the early recruitment of neutrophils into influenza-infected trachea is essential for CD8(+) T cell-mediated immune protection in mice. We observed that migrating neutrophils leave behind long-lasting trails that are enriched in the chemokine CXCL12. Experiments with granulocyte-specific CXCL12 conditionally depleted mice and a CXCR4 antagonist revealed that CXCL12 derived from neutrophil trails is critical for virus-specific CD8(+) T cell recruitment and effector functions. Collectively, these results suggest that neutrophils deposit long-lasting, chemokine-containing trails, which may provide both chemotactic and haptotactic cues for efficient CD8(+) T cell migration and localization in influenza-infected tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lim, Kihong -- Hyun, Young-Min -- Lambert-Emo, Kris -- Capece, Tara -- Bae, Seyeon -- Miller, Richard -- Topham, David J -- Kim, Minsoo -- AI102851/AI/NIAID NIH HHS/ -- HHSN272201400005C/PHS HHS/ -- HL087088/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2015 Sep 4;349(6252):aaa4352. doi: 10.1126/science.aaa4352.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA. ; Department of Pharmacology, Northwestern University, Chicago, IL, USA. ; Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA. minsoo_kim@urmc.rochester.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26339033" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD8-Positive T-Lymphocytes/*immunology ; Chemokine CXCL12/*immunology/pharmacology ; Chemotaxis/*immunology ; Heterocyclic Compounds/pharmacology ; Influenza A virus/*immunology ; Lung/immunology/virology ; Male ; Matrix Metalloproteinase 2/immunology ; Matrix Metalloproteinase 9/immunology ; Mice ; Mice, Inbred C57BL ; Neutropenia/immunology ; Neutrophils/*immunology/virology ; Orthomyxoviridae Infections/*immunology ; Trachea/*immunology/virology
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  • 67
    Publication Date: 2015-03-15
    Description: Wireless deep brain stimulation of well-defined neuronal populations could facilitate the study of intact brain circuits and the treatment of neurological disorders. Here, we demonstrate minimally invasive and remote neural excitation through the activation of the heat-sensitive capsaicin receptor TRPV1 by magnetic nanoparticles. When exposed to alternating magnetic fields, the nanoparticles dissipate heat generated by hysteresis, triggering widespread and reversible firing of TRPV1(+) neurons. Wireless magnetothermal stimulation in the ventral tegmental area of mice evoked excitation in subpopulations of neurons in the targeted brain region and in structures receiving excitatory projections. The nanoparticles persisted in the brain for over a month, allowing for chronic stimulation without the need for implants and connectors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Ritchie -- Romero, Gabriela -- Christiansen, Michael G -- Mohr, Alan -- Anikeeva, Polina -- New York, N.Y. -- Science. 2015 Mar 27;347(6229):1477-80. doi: 10.1126/science.1261821. Epub 2015 Mar 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. ; Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. ; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. ; Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. anikeeva@mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25765068" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Deep Brain Stimulation/*methods ; Evoked Potentials ; HEK293 Cells ; Humans ; *Magnetite Nanoparticles ; Male ; Mice ; Mice, Inbred C57BL ; Neurons/physiology ; Rats ; TRPV Cation Channels/agonists ; Ventral Tegmental Area/physiology ; *Wireless Technology
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  • 68
    Publication Date: 2015-02-14
    Description: Acute myeloid leukemia (AML) is the most common form of adult leukemia. The transcription factor fusion CBFbeta-SMMHC (core binding factor beta and the smooth-muscle myosin heavy chain), expressed in AML with the chromosome inversion inv(16)(p13q22), outcompetes wild-type CBFbeta for binding to the transcription factor RUNX1, deregulates RUNX1 activity in hematopoiesis, and induces AML. Current inv(16) AML treatment with nonselective cytotoxic chemotherapy results in a good initial response but limited long-term survival. Here, we report the development of a protein-protein interaction inhibitor, AI-10-49, that selectively binds to CBFbeta-SMMHC and disrupts its binding to RUNX1. AI-10-49 restores RUNX1 transcriptional activity, displays favorable pharmacokinetics, and delays leukemia progression in mice. Treatment of primary inv(16) AML patient blasts with AI-10-49 triggers selective cell death. These data suggest that direct inhibition of the oncogenic CBFbeta-SMMHC fusion protein may be an effective therapeutic approach for inv(16) AML, and they provide support for transcription factor targeted therapy in other cancers.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4423805/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4423805/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Illendula, Anuradha -- Pulikkan, John A -- Zong, Hongliang -- Grembecka, Jolanta -- Xue, Liting -- Sen, Siddhartha -- Zhou, Yunpeng -- Boulton, Adam -- Kuntimaddi, Aravinda -- Gao, Yan -- Rajewski, Roger A -- Guzman, Monica L -- Castilla, Lucio H -- Bushweller, John H -- 1 DP2 OD007399-01/OD/NIH HHS/ -- DP2 OD007399/OD/NIH HHS/ -- R01 AI039536/AI/NIAID NIH HHS/ -- R01 CA096983/CA/NCI NIH HHS/ -- R01 CA140398/CA/NCI NIH HHS/ -- T32 GM080186/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Feb 13;347(6223):779-84. doi: 10.1126/science.aaa0314.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA. ; Program in Gene Function and Expression, University of Massachusetts Medical School, Worcester, MA 01605, USA. ; Department of Medicine, Weill Medical College of Cornell University, New York, NY 10065, USA. ; Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA. ; Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66045, USA. ; Program in Gene Function and Expression, University of Massachusetts Medical School, Worcester, MA 01605, USA. jhb4v@virginia.edu Lucio.Castilla@umassmed.edu. ; Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA. jhb4v@virginia.edu Lucio.Castilla@umassmed.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25678665" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/chemistry/*therapeutic use ; Benzimidazoles/chemistry/*therapeutic use ; Cell Line, Tumor ; Core Binding Factor Alpha 2 Subunit/antagonists & inhibitors/metabolism ; Female ; Humans ; Leukemia, Myeloid, Acute/*drug therapy ; Mice ; Mice, Inbred C57BL ; Oncogene Proteins, Fusion/*antagonists & inhibitors/metabolism ; Protein Interaction Maps ; Small Molecule Libraries/chemistry
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  • 69
    Publication Date: 2015-04-18
    Description: Protective CD8(+) T cell-mediated immunity requires a massive expansion in cell number and the development of long-lived memory cells. Using forward genetics in mice, we identified an orphan protein named lymphocyte expansion molecule (LEM) that promoted antigen-dependent CD8(+) T cell proliferation, effector function, and memory cell generation in response to infection with lymphocytic choriomeningitis virus. Generation of LEM-deficient mice confirmed these results. Through interaction with CR6 interacting factor (CRIF1), LEM controlled the levels of oxidative phosphorylation (OXPHOS) complexes and respiration, resulting in the production of pro-proliferative mitochondrial reactive oxygen species (mROS). LEM provides a link between immune activation and the expansion of protective CD8(+) T cells driven by OXPHOS and represents a pathway for the restoration of long-term protective immunity based on metabolically modified cytotoxic CD8(+) T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Okoye, Isobel -- Wang, Lihui -- Pallmer, Katharina -- Richter, Kirsten -- Ichimura, Takahuru -- Haas, Robert -- Crouse, Josh -- Choi, Onjee -- Heathcote, Dean -- Lovo, Elena -- Mauro, Claudio -- Abdi, Reza -- Oxenius, Annette -- Rutschmann, Sophie -- Ashton-Rickardt, Philip G -- A9995/Cancer Research UK/United Kingdom -- AI091930/AI/NIAID NIH HHS/ -- AI45108/AI/NIAID NIH HHS/ -- FS/12/38/29640/British Heart Foundation/United Kingdom -- G0700795/Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2015 May 29;348(6238):995-1001. doi: 10.1126/science.aaa7516. Epub 2015 Apr 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Immunobiology, Division of Inflammation and Immunology, Department of Medicine, Faculty of Medicine, Imperial College London, Exhibition Road, London SW7 2AZ, UK. ; Institute of Microbiology, Eidgenossische Technische Hochschule Zurich (ETHZ), Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland. ; Transplantation Research Center, Brigham and Women's Hospital, Harvard Medical School, 221 Longwood Avenue, Boston, MA 02215, USA. ; William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK. ; Section of Immunobiology, Division of Inflammation and Immunology, Department of Medicine, Faculty of Medicine, Imperial College London, Exhibition Road, London SW7 2AZ, UK. Transplantation Research Center, Brigham and Women's Hospital, Harvard Medical School, 221 Longwood Avenue, Boston, MA 02215, USA. p.ashton-rickardt@imperial.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25883318" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD8-Positive T-Lymphocytes/*immunology/*metabolism ; Cell Cycle Proteins/metabolism ; Cell Respiration ; Immunity, Cellular ; *Immunologic Memory ; Lymphocytic Choriomeningitis/immunology ; Lymphocytic choriomeningitis virus/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mitochondria/*metabolism ; Mitochondrial Proteins/genetics/*metabolism ; Molecular Sequence Data ; Oxidative Phosphorylation ; Reactive Oxygen Species/metabolism
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  • 70
    Publication Date: 2015-10-03
    Description: Dendritic cells can capture and transfer retroviruses in vitro across synaptic cell-cell contacts to uninfected cells, a process called trans-infection. Whether trans-infection contributes to retroviral spread in vivo remains unknown. Here, we visualize how retroviruses disseminate in secondary lymphoid tissues of living mice. We demonstrate that murine leukemia virus (MLV) and human immunodeficiency virus (HIV) are first captured by sinus-lining macrophages. CD169/Siglec-1, an I-type lectin that recognizes gangliosides, captures the virus. MLV-laden macrophages then form long-lived synaptic contacts to trans-infect B-1 cells. Infected B-1 cells subsequently migrate into the lymph node to spread the infection through virological synapses. Robust infection in lymph nodes and spleen requires CD169, suggesting that a combination of fluid-based movement followed by CD169-dependent trans-infection can contribute to viral spread.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4651917/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4651917/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sewald, Xaver -- Ladinsky, Mark S -- Uchil, Pradeep D -- Beloor, Jagadish -- Pi, Ruoxi -- Herrmann, Christin -- Motamedi, Nasim -- Murooka, Thomas T -- Brehm, Michael A -- Greiner, Dale L -- Shultz, Leonard D -- Mempel, Thorsten R -- Bjorkman, Pamela J -- Kumar, Priti -- Mothes, Walther -- P01 AI078897/AI/NIAID NIH HHS/ -- P30 CA016359/CA/NCI NIH HHS/ -- P50 GM082545/GM/NIGMS NIH HHS/ -- P50GM082545/GM/NIGMS NIH HHS/ -- R01 AI097052/AI/NIAID NIH HHS/ -- R01 AI112443/AI/NIAID NIH HHS/ -- R01 CA098727/CA/NCI NIH HHS/ -- R01 DA036298/DA/NIDA NIH HHS/ -- S10 RR026697/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2015 Oct 30;350(6260):563-7. doi: 10.1126/science.aab2749. Epub 2015 Oct 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA. sewald@mvp.uni-muenchen.de priti.kumar@yale.edu walther.mothes@yale.edu. ; Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA. ; Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA. ; Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA. ; Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA. ; Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. ; Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01655, USA. ; The Jackson Laboratory, Bar Harbor, ME 04609, USA. ; Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA. sewald@mvp.uni-muenchen.de priti.kumar@yale.edu walther.mothes@yale.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26429886" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dendritic Cells/immunology/virology ; HIV Infections/*immunology ; HIV-1/*physiology ; Humans ; Leukemia Virus, Murine/*physiology ; Lymph Nodes/immunology/virology ; Lymphocytes/immunology/*virology ; Macrophages/immunology/virology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Retroviridae Infections/*immunology ; Sialic Acid Binding Ig-like Lectin 1/genetics/*physiology ; Spleen/immunology/virology ; *Virus Internalization
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  • 71
    Publication Date: 2015-10-03
    Description: Memory stabilization after learning requires translational and transcriptional regulations in the brain, yet the temporal molecular changes that occur after learning have not been explored at the genomic scale. We used ribosome profiling and RNA sequencing to quantify the translational status and transcript levels in the mouse hippocampus after contextual fear conditioning. We revealed three types of repressive regulations: translational suppression of ribosomal protein-coding genes in the hippocampus, learning-induced early translational repression of specific genes, and late persistent suppression of a subset of genes via inhibition of estrogen receptor 1 (ESR1/ERalpha) signaling. In behavioral analyses, overexpressing Nrsn1, one of the newly identified genes undergoing rapid translational repression, or activating ESR1 in the hippocampus impaired memory formation. Collectively, this study unveils the yet-unappreciated importance of gene repression mechanisms for memory formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cho, Jun -- Yu, Nam-Kyung -- Choi, Jun-Hyeok -- Sim, Su-Eon -- Kang, SukJae Joshua -- Kwak, Chuljung -- Lee, Seung-Woo -- Kim, Ji-il -- Choi, Dong Il -- Kim, V Narry -- Kaang, Bong-Kiun -- New York, N.Y. -- Science. 2015 Oct 2;350(6256):82-7. doi: 10.1126/science.aac7368.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for RNA Research, Institute for Basic Science, Seoul 151-742, Korea. Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea. ; Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea. ; Center for RNA Research, Institute for Basic Science, Seoul 151-742, Korea. Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea. narrykim@snu.ac.kr kaang@snu.ac.kr. ; Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea. narrykim@snu.ac.kr kaang@snu.ac.kr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26430118" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conditioning, Classical ; Estrogen Receptor alpha/*genetics ; Fear ; *Gene Expression Regulation ; Hippocampus/*metabolism ; Male ; Membrane Proteins/*genetics ; *Memory ; Mice ; Mice, Inbred C57BL ; Protein Biosynthesis/*genetics ; Ribosomal Proteins/genetics ; Transcription, Genetic
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  • 72
    Publication Date: 2015-10-17
    Description: Innate lymphoid cells (ILCs) contribute to barrier immunity, tissue homeostasis, and immune regulation at various anatomical sites throughout the body. How ILCs maintain their presence in lymphoid and peripheral tissues thus far has been unclear. We found that in the lymphoid and nonlymphoid organs of adult mice, ILCs are tissue-resident cells that were maintained and expanded locally under physiologic conditions, upon systemic perturbation of immune homeostasis and during acute helminth infection. However, at later time points after infection, cells from hematogenous sources helped to partially replenish the pool of resident ILCs. Thus, ILCs are maintained by self-renewal in broadly different microenvironments and physiological settings. Such an extreme "sedentary" lifestyle is consistent with the proposed roles of ILCs as sentinels and local keepers of tissue function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720139/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720139/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gasteiger, Georg -- Fan, Xiying -- Dikiy, Stanislav -- Lee, Sue Y -- Rudensky, Alexander Y -- P30 CA008748/CA/NCI NIH HHS/ -- P30CA008748/CA/NCI NIH HHS/ -- R01 AI034206/AI/NIAID NIH HHS/ -- R37 AI034206/AI/NIAID NIH HHS/ -- R37AI034206/AI/NIAID NIH HHS/ -- T32 GM007739/GM/NIGMS NIH HHS/ -- T32GM07739/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Nov 20;350(6263):981-5. doi: 10.1126/science.aac9593. Epub 2015 Oct 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Immunology Program, and Ludwig Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. Institute of Medical Microbiology and Hygiene, University of Mainz Medical Centre, Mainz 55131, Germany. ; Howard Hughes Medical Institute, Immunology Program, and Ludwig Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26472762" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Helminthiasis/immunology ; Homeostasis/immunology ; *Immunity, Innate ; Intestine, Small/cytology/immunology ; Lung/cytology/immunology ; Lymphocytes/*immunology ; Lymphoid Tissue/cytology/*immunology ; Mice ; Mice, Inbred C57BL ; Organ Specificity/immunology ; Parabiosis ; Salivary Glands/cytology/immunology
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  • 73
    Publication Date: 2015-02-07
    Description: The layer of macrophages at the subcapsular sinus (SCS) captures pathogens entering the lymph node, preventing their global dissemination and triggering an immune response. However, how infection affects SCS macrophages remains largely unexplored. Here we show that infection and inflammation disrupt the organization of SCS macrophages in a manner that involves the migration of mature dendritic cells to the lymph node. This disrupted organization reduces the capacity of SCS macrophages to retain and present antigen in a subsequent secondary infection, resulting in diminished B cell responses. Thus, the SCS macrophage layer may act as a sensor or valve during infection to temporarily shut down the lymph node to further antigenic challenge. This shutdown may increase an organism's susceptibility to secondary infections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gaya, Mauro -- Castello, Angelo -- Montaner, Beatriz -- Rogers, Neil -- Reis e Sousa, Caetano -- Bruckbauer, Andreas -- Batista, Facundo D -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2015 Feb 6;347(6222):667-72. doi: 10.1126/science.aaa1300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lymphocyte Interaction Laboratory, London Research Institute, Cancer Research UK, 44 Lincoln's Inn Fields, London WC2A 3LY, UK. ; Immunobiology Laboratory, London Research Institute, Cancer Research UK, 44 Lincoln's Inn Fields, London WC2A 3LY, UK. ; Lymphocyte Interaction Laboratory, London Research Institute, Cancer Research UK, 44 Lincoln's Inn Fields, London WC2A 3LY, UK. facundo.batista@cancer.org.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25657250" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens/immunology ; B-Lymphocytes/*immunology/pathology ; Cell Movement/*immunology ; Coinfection/*immunology ; Dendritic Cells/immunology ; Inflammation/*immunology ; Lymph Nodes/immunology/pathology ; Macrophages/*immunology/pathology ; Mice ; Mice, Inbred C57BL ; Staphylococcal Skin Infections/*immunology ; *Staphylococcus aureus
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  • 74
    Publication Date: 2015-08-01
    Description: Infected cells detect viruses through a variety of receptors that initiate cell-intrinsic innate defense responses. Cyclic guanosine monophosphate (GMP)-adenosine monophosphate (AMP) synthase (cGAS) is a cytosolic sensor for many DNA viruses and HIV-1. In response to cytosolic viral DNA, cGAS synthesizes the second messenger 2'3'-cyclic GMP-AMP (cGAMP), which activates antiviral signaling pathways. We show that in cells producing virus, cGAS-synthesized cGAMP can be packaged in viral particles and extracellular vesicles. Viral particles efficiently delivered cGAMP to target cells. cGAMP transfer by viral particles to dendritic cells activated innate immunity and antiviral defenses. Finally, we show that cell-free murine cytomegalovirus and Modified Vaccinia Ankara virus contained cGAMP. Thus, transfer of cGAMP by viruses may represent a defense mechanism to propagate immune responses to uninfected target cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gentili, Matteo -- Kowal, Joanna -- Tkach, Mercedes -- Satoh, Takeshi -- Lahaye, Xavier -- Conrad, Cecile -- Boyron, Marilyn -- Lombard, Berangere -- Durand, Sylvere -- Kroemer, Guido -- Loew, Damarys -- Dalod, Marc -- Thery, Clotilde -- Manel, Nicolas -- New York, N.Y. -- Science. 2015 Sep 11;349(6253):1232-6. doi: 10.1126/science.aab3628. Epub 2015 Jul 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM U932, Immunity and Cancer Unit, Institut Curie, Paris, France. ; Centre d'Immunologie de Marseille-Luminy, Aix Marseille Universite UM2, INSERM U1104, CNRS UMR7280, 13288 Marseille, France. ; Laboratoire de Spectrometrie de Masse Proteomique, Institut Curie, Paris, France. ; Labex Dendritic Cell Biology (DCBIOL), Paris, France. ; Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Institute, 94805 Villejuif, France. ; INSERM U932, Immunity and Cancer Unit, Institut Curie, Paris, France. Labex Dendritic Cell Biology (DCBIOL), Paris, France. ; INSERM U932, Immunity and Cancer Unit, Institut Curie, Paris, France. Labex Dendritic Cell Biology (DCBIOL), Paris, France. Labex Vaccine Research Institute (VRI), Paris, France. nicolas.manel@curie.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26229115" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cercopithecus aethiops ; Cytosol/immunology/metabolism/virology ; Dendritic Cells/*immunology/virology ; Genetic Vectors/genetics/metabolism ; HIV Infections/immunology ; HIV-1/genetics/metabolism ; HeLa Cells ; Herpesviridae Infections/*immunology ; Humans ; Immunity, Innate/genetics/*immunology ; Mice ; Mice, Inbred C57BL ; Muromegalovirus/genetics/*metabolism ; Nucleotides, Cyclic/*metabolism ; *Second Messenger Systems ; Vaccinia/*immunology ; Vaccinia virus/genetics/*metabolism ; Vero Cells ; Virion/genetics/*metabolism ; Virus Assembly
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  • 75
    Publication Date: 2015-01-17
    Description: CD4 T cells promote innate and adaptive immune responses, but how vaccine-elicited CD4 T cells contribute to immune protection remains unclear. We evaluated whether induction of virus-specific CD4 T cells by vaccination would protect mice against infection with chronic lymphocytic choriomeningitis virus (LCMV). Immunization with vaccines that selectively induced CD4 T cell responses resulted in catastrophic inflammation and mortality after challenge with a persistent strain of LCMV. Immunopathology required antigen-specific CD4 T cells and was associated with a cytokine storm, generalized inflammation, and multi-organ system failure. Virus-specific CD8 T cells or antibodies abrogated the pathology. These data demonstrate that vaccine-elicited CD4 T cells in the absence of effective antiviral immune responses can trigger lethal immunopathology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4382081/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4382081/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Penaloza-MacMaster, Pablo -- Barber, Daniel L -- Wherry, E John -- Provine, Nicholas M -- Teigler, Jeffrey E -- Parenteau, Lily -- Blackmore, Stephen -- Borducchi, Erica N -- Larocca, Rafael A -- Yates, Kathleen B -- Shen, Hao -- Haining, W Nicholas -- Sommerstein, Rami -- Pinschewer, Daniel D -- Ahmed, Rafi -- Barouch, Dan H -- AI007245/AI/NIAID NIH HHS/ -- AI030048/AI/NIAID NIH HHS/ -- AI07387/AI/NIAID NIH HHS/ -- AI078526/AI/NIAID NIH HHS/ -- AI096040/AI/NIAID NIH HHS/ -- P51 OD011132/OD/NIH HHS/ -- T32 AI007245/AI/NIAID NIH HHS/ -- U19 AI078526/AI/NIAID NIH HHS/ -- U19 AI096040/AI/NIAID NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2015 Jan 16;347(6219):278-82. doi: 10.1126/science.aaa2148.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA. ; Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892, USA. ; Department of Microbiology and Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. ; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA. ; Department of Pathology and Immunology, WHO Collaborating Centre for Vaccine Immunology, University of Geneva, 1211 Geneva, Switzerland. ; Department of Pathology and Immunology, WHO Collaborating Centre for Vaccine Immunology, University of Geneva, 1211 Geneva, Switzerland. Department of Biomedicine-Haus Petersplatz, Division of Experimental Virology, University of Basel, 4009 Basel, Switzerland. ; Emory Vaccine Center and Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322, USA. ; Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA. Ragon Institute of MGH, MIT, and Harvard, Boston, MA 02114, USA. dbarouch@bidmc.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25593185" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptive Immunity ; Animals ; Antibodies, Viral/immunology ; Antigens, Viral/immunology ; Arenaviridae Infections/*immunology/virology ; CD4-Positive T-Lymphocytes/*immunology ; CD8-Positive T-Lymphocytes/immunology ; Cytokines/blood ; Epitopes, T-Lymphocyte/immunology ; Immune System Diseases/*etiology/immunology/pathology ; Immunologic Memory ; Inflammation/*etiology/immunology/pathology ; Lymphocytic choriomeningitis virus/*immunology/physiology ; Mice, Inbred C57BL ; Multiple Organ Failure/etiology ; Vaccination ; Viral Load ; Viral Vaccines/*adverse effects/*immunology ; Virus Replication
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  • 76
    Publication Date: 2015-11-07
    Description: T cell infiltration of solid tumors is associated with favorable patient outcomes, yet the mechanisms underlying variable immune responses between individuals are not well understood. One possible modulator could be the intestinal microbiota. We compared melanoma growth in mice harboring distinct commensal microbiota and observed differences in spontaneous antitumor immunity, which were eliminated upon cohousing or after fecal transfer. Sequencing of the 16S ribosomal RNA identified Bifidobacterium as associated with the antitumor effects. Oral administration of Bifidobacterium alone improved tumor control to the same degree as programmed cell death protein 1 ligand 1 (PD-L1)-specific antibody therapy (checkpoint blockade), and combination treatment nearly abolished tumor outgrowth. Augmented dendritic cell function leading to enhanced CD8(+) T cell priming and accumulation in the tumor microenvironment mediated the effect. Our data suggest that manipulating the microbiota may modulate cancer immunotherapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sivan, Ayelet -- Corrales, Leticia -- Hubert, Nathaniel -- Williams, Jason B -- Aquino-Michaels, Keston -- Earley, Zachary M -- Benyamin, Franco W -- Lei, Yuk Man -- Jabri, Bana -- Alegre, Maria-Luisa -- Chang, Eugene B -- Gajewski, Thomas F -- 5T32CA009594-25/CA/NCI NIH HHS/ -- P30 DK42086/DK/NIDDK NIH HHS/ -- T32 AI007090/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 Nov 27;350(6264):1084-9. doi: 10.1126/science.aac4255. Epub 2015 Nov 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Chicago, Chicago, IL 60637, USA. ; Department of Medicine, University of Chicago, Chicago, IL 60637, USA. ; Section of Genetic Medicine, University of Chicago, Chicago, IL 60637, USA. ; Department of Pathology, University of Chicago, Chicago, IL 60637, USA. Department of Medicine, University of Chicago, Chicago, IL 60637, USA. tgajewsk@medicine.bsd.uchicago.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26541606" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/*therapeutic use ; Antigens, CD274/*immunology ; Bifidobacterium/genetics/*immunology ; CD8-Positive T-Lymphocytes/immunology ; Dendritic Cells/immunology ; Fecal Microbiota Transplantation ; Gastrointestinal Microbiome/*immunology ; Gene Expression Regulation ; Humans ; Immunity/genetics ; Immunotherapy/methods ; Lymphocyte Activation ; Melanoma/*immunology/*therapy ; Mice ; Mice, Inbred C57BL ; RNA, Ribosomal, 16S/genetics ; Skin Neoplasms/*immunology/*therapy ; Symbiosis ; T-Lymphocytes/immunology ; Tumor Microenvironment/immunology
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  • 77
    Publication Date: 2015-03-07
    Description: Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) can simultaneously record the lateral distribution of numerous biomolecules in tissue slices, but its sensitivity is restricted by limited ionization. We used a wavelength-tunable postionization laser to initiate secondary MALDI-like ionization processes in the gas phase. In this way, we could increase the ion yields for numerous lipid classes, liposoluble vitamins, and saccharides, imaged in animal and plant tissue with a 5-micrometer-wide laser spot, by up to two orders of magnitude. Critical parameters for initiation of the secondary ionization processes are pressure of the cooling gas in the ion source, laser wavelength, pulse energy, and delay between the two laser pulses. The technology could enable sensitive MALDI-MS imaging with a lateral resolution in the low micrometer range.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soltwisch, Jens -- Kettling, Hans -- Vens-Cappell, Simeon -- Wiegelmann, Marcel -- Muthing, Johannes -- Dreisewerd, Klaus -- New York, N.Y. -- Science. 2015 Apr 10;348(6231):211-5. doi: 10.1126/science.aaa1051. Epub 2015 Mar 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Hygiene, University of Munster, Robert-Koch-Strasse 41, 48149 Munster, Germany. ; Institute for Hygiene, University of Munster, Robert-Koch-Strasse 41, 48149 Munster, Germany. Interdisciplinary Center for Clinical Research (IZKF), University of Munster, Domagkstrasse 3, 48149 Munster, Germany. ; Institute for Hygiene, University of Munster, Robert-Koch-Strasse 41, 48149 Munster, Germany. Interdisciplinary Center for Clinical Research (IZKF), University of Munster, Domagkstrasse 3, 48149 Munster, Germany. klaus.dreisewerd@uni-muenster.de.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25745064" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carbohydrates/analysis/*chemistry ; Cerebellum/chemistry ; Female ; Gangliosides/analysis/chemistry ; Ions ; *Lasers ; Lipids/analysis/*chemistry ; Male ; Malus/chemistry ; Membrane Lipids/analysis/chemistry ; Mice, Inbred C57BL ; Protons ; Rats, Inbred Lew ; Seminiferous Tubules/chemistry ; Solubility ; Spectrometry, Mass, Matrix-Assisted Laser ; Desorption-Ionization/instrumentation/*methods ; Swine ; Vitamins/analysis/*chemistry
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  • 78
    Publication Date: 2015-11-07
    Description: The mammalian transcription factors CLOCK and BMAL1 are essential components of the molecular clock that coordinate behavior and metabolism with the solar cycle. Genetic or environmental perturbation of circadian cycles contributes to metabolic disorders including type 2 diabetes. To study the impact of the cell-autonomous clock on pancreatic beta cell function, we examined pancreatic islets from mice with either intact or disrupted BMAL1 expression both throughout life and limited to adulthood. We found pronounced oscillation of insulin secretion that was synchronized with the expression of genes encoding secretory machinery and signaling factors that regulate insulin release. CLOCK/BMAL1 colocalized with the pancreatic transcription factor PDX1 within active enhancers distinct from those controlling rhythmic metabolic gene networks in liver. We also found that beta cell clock ablation in adult mice caused severe glucose intolerance. Thus, cell type-specific enhancers underlie the circadian control of peripheral metabolism throughout life and may help to explain its dysregulation in diabetes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4669216/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4669216/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perelis, Mark -- Marcheva, Biliana -- Ramsey, Kathryn Moynihan -- Schipma, Matthew J -- Hutchison, Alan L -- Taguchi, Akihiko -- Peek, Clara Bien -- Hong, Heekyung -- Huang, Wenyu -- Omura, Chiaki -- Allred, Amanda L -- Bradfield, Christopher A -- Dinner, Aaron R -- Barish, Grant D -- Bass, Joseph -- ES05703/ES/NIEHS NIH HHS/ -- K01 DK105137/DK/NIDDK NIH HHS/ -- P01 AG011412/AG/NIA NIH HHS/ -- P01AG011412/AG/NIA NIH HHS/ -- P60 DK020595/DK/NIDDK NIH HHS/ -- P60DK020595/DK/NIDDK NIH HHS/ -- R01 DK090625/DK/NIDDK NIH HHS/ -- R01 ES005703/ES/NIEHS NIH HHS/ -- R01DK090625/DK/NIDDK NIH HHS/ -- T32 DK007169/DK/NIDDK NIH HHS/ -- T32 GM007281/GM/NIGMS NIH HHS/ -- T32 HL007909/HL/NHLBI NIH HHS/ -- T32GM07281/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Nov 6;350(6261):aac4250. doi: 10.1126/science.aac4250.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA. ; Center for Genetic Medicine, Northwestern University, Chicago, IL 60611, USA. ; Medical Scientist Training Program, University of Chicago, Chicago, IL 60637, USA. Graduate Program in the Biophysical Sciences, University of Chicago, Chicago, IL 60637, USA. James Franck Institute, University of Chicago, Chicago, IL 60637, USA. ; McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, WI 52705, USA. ; Graduate Program in the Biophysical Sciences, University of Chicago, Chicago, IL 60637, USA. James Franck Institute, University of Chicago, Chicago, IL 60637, USA. Department of Chemistry, University of Chicago, Chicago, IL 60637, USA. ; Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA. j-bass@northwestern.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26542580" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors/genetics/metabolism ; Animals ; CLOCK Proteins/metabolism ; Circadian Rhythm/*genetics ; Diabetes Mellitus, Type 2/genetics/metabolism ; Enhancer Elements, Genetic/*physiology ; Exocytosis/genetics ; *Gene Expression Regulation ; Glucose Intolerance ; Homeodomain Proteins/metabolism ; Humans ; Insulin/*secretion ; Insulin-Secreting Cells/*secretion ; Liver/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Trans-Activators/metabolism ; Transcription, Genetic
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  • 79
    Publication Date: 2015-11-14
    Description: In healthy individuals, the intestinal microbiota cannot access the liver, spleen, or other peripheral tissues. Some pathogenic bacteria can reach these sites, however, and can induce a systemic immune response. How such compartmentalization is achieved is unknown. We identify a gut-vascular barrier (GVB) in mice and humans that controls the translocation of antigens into the blood stream and prohibits entry of the microbiota. Salmonella typhimurium can penetrate the GVB in a manner dependent on its pathogenicity island (Spi) 2-encoded type III secretion system and on decreased beta-catenin-dependent signaling in gut endothelial cells. The GVB is modified in celiac disease patients with elevated serum transaminases, which indicates that GVB dismantling may be responsible for liver damage in these patients. Understanding the GVB may provide new insights into the regulation of the gut-liver axis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spadoni, Ilaria -- Zagato, Elena -- Bertocchi, Alice -- Paolinelli, Roberta -- Hot, Edina -- Di Sabatino, Antonio -- Caprioli, Flavio -- Bottiglieri, Luca -- Oldani, Amanda -- Viale, Giuseppe -- Penna, Giuseppe -- Dejana, Elisabetta -- Rescigno, Maria -- New York, N.Y. -- Science. 2015 Nov 13;350(6262):830-4. doi: 10.1126/science.aad0135.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Experimental Oncology, European Institute of Oncology, Milan, Italy. ; The Italian Foundation for Cancer Research (FIRC) Institute of Molecular Oncology (IFOM), Milan, Italy. ; First Department of Medicine, St. Matteo Hospital, University of Pavia, Pavia, Italy. ; Unita Operativa Gastroenterologia ed Endoscopia, Fondazione IRCCS Ca Granda, Ospedale Maggiore Policlinico di Milano, and Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Universita degli Studi di Milano, Milan, Italy. ; Department of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy. ; The Italian Foundation for Cancer Research (FIRC) Institute of Molecular Oncology (IFOM), Milan, Italy. Department of Biosciences, Universita degli Studi di Milano, Italy. Department of Genetics, Immunology and Pathology, Uppsala University, Uppsala, Sweden. ; Department of Experimental Oncology, European Institute of Oncology, Milan, Italy. Department of Biosciences, Universita degli Studi di Milano, Italy. maria.rescigno@ieo.eu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26564856" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Bacterial/blood/immunology ; Capillary Permeability/*immunology ; Celiac Disease/blood/immunology/microbiology ; Genomic Islands/genetics/immunology ; Humans ; Ileum/blood supply/immunology/microbiology ; Intestinal Mucosa/immunology/microbiology ; Intestines/blood supply/*immunology/*microbiology ; Liver/immunology ; Mice ; Mice, Inbred C57BL ; Microbiota/*immunology ; Salmonella Infections/*immunology ; Salmonella typhimurium/genetics/*immunology/pathogenicity ; Signal Transduction ; Spleen/immunology ; Transaminases/blood ; Type III Secretion Systems/genetics/immunology ; Wnt Signaling Pathway ; beta Catenin/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 80
    Publication Date: 2015-07-18
    Description: The germinal center (GC) is a microanatomical compartment wherein high-affinity antibody-producing B cells are selectively expanded. B cells proliferate and mutate their antibody genes in the dark zone (DZ) of the GC and are then selected by T cells in the light zone (LZ) on the basis of affinity. Here, we show that T cell help regulates the speed of cell cycle phase transitions and DNA replication of GC B cells. Genome sequencing and single-molecule analyses revealed that T cell help shortens S phase by regulating replication fork progression, while preserving the relative order of replication origin activation. Thus, high-affinity GC B cells are selected by a mechanism that involves prolonged dwell time in the DZ where selected cells undergo accelerated cell cycles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gitlin, Alexander D -- Mayer, Christian T -- Oliveira, Thiago Y -- Shulman, Ziv -- Jones, Mathew J K -- Koren, Amnon -- Nussenzweig, Michel C -- 1F30AI109903-01/AI/NIAID NIH HHS/ -- 1UM1 AI100663-01/AI/NIAID NIH HHS/ -- AI037526-19/AI/NIAID NIH HHS/ -- AI072529-06/AI/NIAID NIH HHS/ -- T32GM07739/GM/NIGMS NIH HHS/ -- UM1 AI100663/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Aug 7;349(6248):643-6. doi: 10.1126/science.aac4919. Epub 2015 Jul 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA. ; Molecular Biology Program, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA. ; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. ; Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA. Howard Hughes Medical Institute (HHMI), The Rockefeller University, New York, NY 10065, USA. nussen@rockefeller.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26184917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*cytology ; Cell Cycle/genetics/*immunology ; Cell Proliferation ; DNA Replication/genetics/*immunology ; Gene Expression Regulation ; Germinal Center/*cytology ; Immunity, Humoral/*genetics ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; S Phase/genetics/immunology ; T-Lymphocytes/*immunology
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  • 81
    Publication Date: 2015-09-26
    Description: Cellular senescence is a terminal stress-activated program controlled by the p53 and p16(INK4a) tumor suppressor proteins. A striking feature of senescence is the senescence-associated secretory phenotype (SASP), a pro-inflammatory response linked to tumor promotion and aging. We have identified the transcription factor GATA4 as a senescence and SASP regulator. GATA4 is stabilized in cells undergoing senescence and is required for the SASP. Normally, GATA4 is degraded by p62-mediated selective autophagy, but this regulation is suppressed during senescence, thereby stabilizing GATA4. GATA4 in turn activates the transcription factor NF-kappaB to initiate the SASP and facilitate senescence. GATA4 activation depends on the DNA damage response regulators ATM and ATR, but not on p53 or p16(INK4a). GATA4 accumulates in multiple tissues, including the aging brain, and could contribute to aging and its associated inflammation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kang, Chanhee -- Xu, Qikai -- Martin, Timothy D -- Li, Mamie Z -- Demaria, Marco -- Aron, Liviu -- Lu, Tao -- Yankner, Bruce A -- Campisi, Judith -- Elledge, Stephen J -- AG009909/AG/NIA NIH HHS/ -- AG017242/AG/NIA NIH HHS/ -- AG046174/AG/NIA NIH HHS/ -- DP1 OD006849/OD/NIH HHS/ -- DP1OD006849/OD/NIH HHS/ -- GM44664/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Sep 25;349(6255):aaa5612. doi: 10.1126/science.aaa5612.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Division of Genetics, Brigham and Women's Hospital, Howard Hughes Medical Institute, Boston, MA 02115, USA. ; Buck Institute for Research on Aging, Novato, CA 94945, USA. ; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. ; Department of Genetics, Harvard Medical School, Division of Genetics, Brigham and Women's Hospital, Howard Hughes Medical Institute, Boston, MA 02115, USA. selledge@genetics.med.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26404840" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/*genetics/metabolism ; Animals ; Ataxia Telangiectasia Mutated Proteins/metabolism ; Autophagy/*genetics ; Brain/metabolism ; Cell Aging/*genetics ; Cell Cycle/genetics ; Cells, Cultured ; Cyclin-Dependent Kinase Inhibitor p16 ; *DNA Damage ; Fibroblasts ; GATA4 Transcription Factor/genetics/*metabolism ; Gene Expression Profiling ; Humans ; Inflammation/*genetics ; Interleukin-1alpha/genetics/metabolism ; Mice ; Mice, Inbred C57BL ; MicroRNAs/genetics/metabolism ; NF-kappa B/metabolism ; Phenotype ; Promoter Regions, Genetic ; Tumor Necrosis Factor Receptor-Associated Peptides and ; Proteins/genetics/metabolism ; Tumor Suppressor Protein p53/metabolism
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  • 82
    Publication Date: 2015-07-15
    Description: Immune cells function in an interacting hierarchy that coordinates the activities of various cell types according to genetic and environmental contexts. We developed graphical approaches to construct an extensible immune reference map from mass cytometry data of cells from different organs, incorporating landmark cell populations as flags on the map to compare cells from distinct samples. The maps recapitulated canonical cellular phenotypes and revealed reproducible, tissue-specific deviations. The approach revealed influences of genetic variation and circadian rhythms on immune system structure, enabled direct comparisons of murine and human blood cell phenotypes, and even enabled archival fluorescence-based flow cytometry data to be mapped onto the reference framework. This foundational reference map provides a working definition of systemic immune organization to which new data can be integrated to reveal deviations driven by genetics, environment, or pathology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4537647/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4537647/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spitzer, Matthew H -- Gherardini, Pier Federico -- Fragiadakis, Gabriela K -- Bhattacharya, Nupur -- Yuan, Robert T -- Hotson, Andrew N -- Finck, Rachel -- Carmi, Yaron -- Zunder, Eli R -- Fantl, Wendy J -- Bendall, Sean C -- Engleman, Edgar G -- Nolan, Garry P -- 1R01CA130826/CA/NCI NIH HHS/ -- 1R01GM109836/GM/NIGMS NIH HHS/ -- 1R01NS089533/NS/NINDS NIH HHS/ -- 1U19AI100627/AI/NIAID NIH HHS/ -- 201303028/PHS HHS/ -- 5-24927/PHS HHS/ -- 5R01AI073724/AI/NIAID NIH HHS/ -- 5U54CA143907/CA/NCI NIH HHS/ -- 7500108142/PHS HHS/ -- F31 CA189331/CA/NCI NIH HHS/ -- F31CA189331/CA/NCI NIH HHS/ -- F32 GM093508/GM/NIGMS NIH HHS/ -- F32 GM093508-01/GM/NIGMS NIH HHS/ -- HHSF223201210194C/PHS HHS/ -- HHSN268201000034C/HV/NHLBI NIH HHS/ -- HHSN272200700038C/AI/NIAID NIH HHS/ -- HHSN272200700038C/PHS HHS/ -- HHSN272201200028C/PHS HHS/ -- K99 GM104148/GM/NIGMS NIH HHS/ -- K99GM104148-01/GM/NIGMS NIH HHS/ -- N01-HV-00242/HV/NHLBI NIH HHS/ -- P01 CA034233/CA/NCI NIH HHS/ -- P01 CA034233-22A1/CA/NCI NIH HHS/ -- PN2 EY018228/EY/NEI NIH HHS/ -- PN2EY018228 0158 G KB065/EY/NEI NIH HHS/ -- R01 AI073724/AI/NIAID NIH HHS/ -- R01 CA130826/CA/NCI NIH HHS/ -- R01 CA184968/CA/NCI NIH HHS/ -- R01 GM109836/GM/NIGMS NIH HHS/ -- R01 NS089533/NS/NINDS NIH HHS/ -- R01CA184968/CA/NCI NIH HHS/ -- R33 CA183654/CA/NCI NIH HHS/ -- R33 CA183692/CA/NCI NIH HHS/ -- RFA CA 09-009/CA/NCI NIH HHS/ -- RFA CA 09-011/CA/NCI NIH HHS/ -- T32 GM007276/GM/NIGMS NIH HHS/ -- T32GM007276/GM/NIGMS NIH HHS/ -- U19 AI057229/AI/NIAID NIH HHS/ -- U19 AI100627/AI/NIAID NIH HHS/ -- U54 CA149145/CA/NCI NIH HHS/ -- U54CA149145/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Jul 10;349(6244):1259425. doi: 10.1126/science.1259425.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Baxter Laboratory in Stem Cell Biology, Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA. Department of Pathology, Stanford University, Stanford, CA 94305, USA. Program in Immunology, Stanford University, Stanford, CA 94305, USA. gnolan@stanford.edu matthew.spitzer@stanford.edu. ; Baxter Laboratory in Stem Cell Biology, Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA. ; Department of Pathology, Stanford University, Stanford, CA 94305, USA. ; Department of Pathology, Stanford University, Stanford, CA 94305, USA. Program in Immunology, Stanford University, Stanford, CA 94305, USA. ; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Stanford University, Stanford, CA 94305, USA. ; Baxter Laboratory in Stem Cell Biology, Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA. Program in Immunology, Stanford University, Stanford, CA 94305, USA. gnolan@stanford.edu matthew.spitzer@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26160952" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow/immunology ; Circadian Rhythm/immunology ; Flow Cytometry ; Genetic Variation ; Humans ; Immune System/*cytology/*immunology ; Mice ; Mice, Inbred C57BL ; Models, Biological ; Phenotype ; Reference Standards
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  • 83
    Publication Date: 2016-01-20
    Description: In developing hearts, changes in the cardiac metabolic milieu during the perinatal period redirect mitochondrial substrate preference from carbohydrates to fatty acids. Mechanisms responsible for this mitochondrial plasticity are unknown. Here, we found that PINK1-Mfn2-Parkin-mediated mitophagy directs this metabolic transformation in mouse hearts. A mitofusin (Mfn) 2 mutant lacking PINK1 phosphorylation sites necessary for Parkin binding (Mfn2 AA) inhibited mitochondrial Parkin translocation, suppressing mitophagy without impairing mitochondrial fusion. Cardiac Parkin deletion or expression of Mfn2 AA from birth, but not after weaning, prevented postnatal mitochondrial maturation essential to survival. Five-week-old Mfn2 AA hearts retained a fetal mitochondrial transcriptional signature without normal increases in fatty acid metabolism and mitochondrial biogenesis genes. Myocardial fatty acylcarnitine levels and cardiomyocyte respiration induced by palmitoylcarnitine were concordantly depressed. Thus, instead of transcriptional reprogramming, fetal cardiomyocyte mitochondria undergo perinatal Parkin-mediated mitophagy and replacement by mature adult mitochondria. Mitophagic mitochondrial removal underlies developmental cardiomyocyte mitochondrial plasticity and metabolic transitioning of perinatal hearts.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4747105/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4747105/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gong, Guohua -- Song, Moshi -- Csordas, Gyorgy -- Kelly, Daniel P -- Matkovich, Scot J -- Dorn, Gerald W 2nd -- HL058493/HL/NHLBI NIH HHS/ -- HL108943/HL/NHLBI NIH HHS/ -- HL122124/HL/NHLBI NIH HHS/ -- HL128071/HL/NHLBI NIH HHS/ -- HL59888/HL/NHLBI NIH HHS/ -- R01 HL058493/HL/NHLBI NIH HHS/ -- R01 HL059888/HL/NHLBI NIH HHS/ -- R01 HL108943/HL/NHLBI NIH HHS/ -- R01 HL128071/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2015 Dec 4;350(6265):aad2459. doi: 10.1126/science.aad2459. Epub 2015 Dec 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Pharmacogenomics, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA. ; Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA. ; Center for Metabolic Origins of Disease, Cardiovascular Metabolism Program, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL, USA. ; Center for Pharmacogenomics, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA. gdorn@dom.wustl.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26785495" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cellular Reprogramming ; GTP Phosphohydrolases/genetics/metabolism ; Heart/*embryology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mitochondria, Heart/metabolism/*physiology/ultrastructure ; Mitochondrial Degradation/genetics/*physiology ; Mitochondrial Dynamics ; Myocardium/*metabolism/ultrastructure ; Myocytes, Cardiac/metabolism/ultrastructure ; Protein Kinases/metabolism ; Ubiquitin-Protein Ligases/genetics/*metabolism
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  • 84
    Publication Date: 2015-08-15
    Description: Astrocytes are important regulatory elements in brain function. They respond to neurotransmitters and release gliotransmitters that modulate synaptic transmission. However, the cell- and synapse-specificity of the functional relationship between astrocytes and neurons in certain brain circuits remains unknown. In the dorsal striatum, which mainly comprises two intermingled subtypes (striatonigral and striatopallidal) of medium spiny neurons (MSNs) and synapses belonging to two neural circuits (the direct and indirect pathways of the basal ganglia), subpopulations of astrocytes selectively responded to specific MSN subtype activity. These subpopulations of astrocytes released glutamate that selectively activated N-methyl-d-aspartate receptors in homotypic, but not heterotypic, MSNs. Likewise, astrocyte subpopulations selectively regulated homotypic synapses through metabotropic glutamate receptor activation. Therefore, bidirectional astrocyte-neuron signaling selectively occurs between specific subpopulations of astrocytes, neurons, and synapses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martin, R -- Bajo-Graneras, R -- Moratalla, R -- Perea, G -- Araque, A -- New York, N.Y. -- Science. 2015 Aug 14;349(6249):730-4. doi: 10.1126/science.aaa7945.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Instituto Cajal, Consejo Superior de Investigaciones Cientificas, 28002 Madrid, Spain. ; Instituto Cajal, Consejo Superior de Investigaciones Cientificas, 28002 Madrid, Spain. Centro de Investigacion Biomedica en Red Enfermedades Neurodegenerativas, Instituto de Salud Carlos III, 28029 Madrid, Spain. ; Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA. araque@umn.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26273054" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/*physiology ; Basal Ganglia/cytology/*physiology ; Cell Communication ; Glutamates/*metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Nerve Net/physiology ; Neurons/*physiology ; Receptors, Metabotropic Glutamate/agonists/metabolism ; Receptors, N-Methyl-D-Aspartate/agonists/metabolism ; Signal Transduction ; Synapses/*physiology ; *Synaptic Transmission
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  • 85
    Publication Date: 2015-06-20
    Description: Genital Chlamydia trachomatis (Ct) infection induces protective immunity that depends on interferon-gamma-producing CD4 T cells. By contrast, we report that mucosal exposure to ultraviolet light (UV)-inactivated Ct (UV-Ct) generated regulatory T cells that exacerbated subsequent Ct infection. We show that mucosal immunization with UV-Ct complexed with charge-switching synthetic adjuvant particles (cSAPs) elicited long-lived protection in conventional and humanized mice. UV-Ct-cSAP targeted immunogenic uterine CD11b(+)CD103(-) dendritic cells (DCs), whereas UV-Ct accumulated in tolerogenic CD11b(-)CD103(+) DCs. Regardless of vaccination route, UV-Ct-cSAP induced systemic memory T cells, but only mucosal vaccination induced effector T cells that rapidly seeded uterine mucosa with resident memory T cells (T(RM) cells). Optimal Ct clearance required both T(RM) seeding and subsequent infection-induced recruitment of circulating memory T cells. Thus, UV-Ct-cSAP vaccination generated two synergistic memory T cell subsets with distinct migratory properties.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4605428/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4605428/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stary, Georg -- Olive, Andrew -- Radovic-Moreno, Aleksandar F -- Gondek, David -- Alvarez, David -- Basto, Pamela A -- Perro, Mario -- Vrbanac, Vladimir D -- Tager, Andrew M -- Shi, Jinjun -- Yethon, Jeremy A -- Farokhzad, Omid C -- Langer, Robert -- Starnbach, Michael N -- von Andrian, Ulrich H -- 1 R01-EB015419-01/EB/NIBIB NIH HHS/ -- AI069259/AI/NIAID NIH HHS/ -- AI078897/AI/NIAID NIH HHS/ -- AI095261/AI/NIAID NIH HHS/ -- AI111595/AI/NIAID NIH HHS/ -- P01 AI078897/AI/NIAID NIH HHS/ -- P30-AI060354/AI/NIAID NIH HHS/ -- R00 CA160350/CA/NCI NIH HHS/ -- R01 AI039558/AI/NIAID NIH HHS/ -- R01 AI062827/AI/NIAID NIH HHS/ -- R01 AI069259/AI/NIAID NIH HHS/ -- R01 AI072252/AI/NIAID NIH HHS/ -- R01 AI111595/AI/NIAID NIH HHS/ -- R01 AI39558/AI/NIAID NIH HHS/ -- R37-EB000244/EB/NIBIB NIH HHS/ -- T32 HL066987/HL/NHLBI NIH HHS/ -- U19 AI095261/AI/NIAID NIH HHS/ -- U19 AI113187/AI/NIAID NIH HHS/ -- U54-CA119349/CA/NCI NIH HHS/ -- U54-CA151884/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2015 Jun 19;348(6241):aaa8205. doi: 10.1126/science.aaa8205.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA. uva@hms.harvard.edu georg_stary@hms.harvard.edu. ; Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA. ; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. ; Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. ; Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. ; Sanofi Pasteur, Cambridge, MA 02139, USA. ; Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. King Abdulaziz University, Jeddah, Saudi Arabia. ; Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA. Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA. uva@hms.harvard.edu georg_stary@hms.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26089520" target="_blank"〉PubMed〈/a〉
    Keywords: Adjuvants, Immunologic/administration & dosage ; Animals ; Antigens, CD/immunology ; Antigens, CD11/immunology ; Bacterial Vaccines/administration & dosage/*immunology ; CD8-Positive T-Lymphocytes/immunology ; Chlamydia Infections/*prevention & control ; Chlamydia trachomatis/*immunology/radiation effects ; Dendritic Cells/immunology ; Female ; *Immunologic Memory ; Integrin alpha Chains/immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mucous Membrane/immunology ; Nanoparticles/administration & dosage ; T-Lymphocyte Subsets/immunology ; Th1 Cells/*immunology ; Ultraviolet Rays ; Uterus/*immunology ; Vaccination/methods ; Vaccines, Inactivated/administration & dosage/immunology
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  • 86
    Publication Date: 2015-02-24
    Description: Mutations in sunlight-induced melanoma arise from cyclobutane pyrimidine dimers (CPDs), DNA photoproducts that are typically created picoseconds after an ultraviolet (UV) photon is absorbed at thymine or cytosine. We found that in melanocytes, CPDs are generated for 〉3 hours after exposure to UVA, a major component of the radiation in sunlight and in tanning beds. These "dark CPDs" constitute the majority of CPDs and include the cytosine-containing CPDs that initiate UV-signature C--〉T mutations. Dark CPDs arise when UV-induced reactive oxygen and nitrogen species combine to excite an electron in fragments of the pigment melanin. This creates a quantum triplet state that has the energy of a UV photon but induces CPDs by energy transfer to DNA in a radiation-independent manner. Melanin may thus be carcinogenic as well as protective against cancer. These findings also validate the long-standing suggestion that chemically generated excited electronic states are relevant to mammalian biology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4432913/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4432913/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Premi, Sanjay -- Wallisch, Silvia -- Mano, Camila M -- Weiner, Adam B -- Bacchiocchi, Antonella -- Wakamatsu, Kazumasa -- Bechara, Etelvino J H -- Halaban, Ruth -- Douki, Thierry -- Brash, Douglas E -- 2 P50 CA121974/CA/NCI NIH HHS/ -- P30 DK034989/DK/NIDDK NIH HHS/ -- P30 DK34989/DK/NIDDK NIH HHS/ -- P50 CA121974/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2015 Feb 20;347(6224):842-7. doi: 10.1126/science.1256022.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT 06520, USA. ; Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT 06520, USA. Departamento de Bioquimica, Instituto de Quimica, Universidade de Sao Paulo, Sao Paulo 05513-970 SP, Brazil. ; Department of Dermatology, Yale University School of Medicine, New Haven, CT 06520, USA. ; Department of Chemistry, Fujita Health University School of Health Sciences, Toyoake, Aichi 470-1192, Japan. ; Departamento de Bioquimica, Instituto de Quimica, Universidade de Sao Paulo, Sao Paulo 05513-970 SP, Brazil. Departamento de Ciencias Exatas e da Terra, Universidade Federal de Sao Paulo, Diadema, Sao Paulo 09972-270 SP, Brazil. ; Department of Dermatology, Yale University School of Medicine, New Haven, CT 06520, USA. Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT 06520, USA. ; INAC/LCIB UMR-E3 CEA-UJF/Commissariat a l'Energie Atomique (CEA), 38054 Grenoble Cedex 9, France. ; Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT 06520, USA. Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT 06520, USA. douglas.brash@yale.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25700512" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Cytosine/metabolism ; DNA/chemistry/genetics/*radiation effects ; DNA Damage/*genetics ; Energy Transfer ; Humans ; Melanins/chemistry/*metabolism ; Melanocytes/metabolism/*radiation effects ; Melanoma/*genetics ; Mice ; Mice, Inbred C57BL ; Mutagenesis ; Mutation ; Neoplasms, Radiation-Induced/*genetics ; Photons ; Pyrimidine Dimers/*metabolism ; Receptor, Melanocortin, Type 1/genetics ; Skin Neoplasms/*genetics ; Sunlight/adverse effects ; Thymine/metabolism ; Ultraviolet Rays
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  • 87
    Publication Date: 2015-10-17
    Description: The maintenance of immune homeostasis requires regulatory T cells (T(regs)). Given their intrinsic self-reactivity, T(regs) must stably maintain a suppressive phenotype to avoid autoimmunity. We report that impaired expression of the transcription factor (TF) Helios by FoxP3(+) CD4 and Qa-1-restricted CD8 T(regs) results in defective regulatory activity and autoimmunity in mice. Helios-deficient T(regs) develop an unstable phenotype during inflammatory responses characterized by reduced FoxP3 expression and increased effector cytokine expression secondary to diminished activation of the STAT5 pathway. CD8 T(regs) also require Helios-dependent STAT5 activation for survival and to prevent terminal T cell differentiation. The definition of Helios as a key transcription factor that stabilizes T(regs) in the face of inflammatory responses provides a genetic explanation for a core property of T(regs).〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4627635/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4627635/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Hye-Jung -- Barnitz, R Anthony -- Kreslavsky, Taras -- Brown, Flavian D -- Moffett, Howell -- Lemieux, Madeleine E -- Kaygusuz, Yasemin -- Meissner, Torsten -- Holderried, Tobias A W -- Chan, Susan -- Kastner, Philippe -- Haining, W Nicholas -- Cantor, Harvey -- R01 AI037562/AI/NIAID NIH HHS/ -- R01AI37562/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 Oct 16;350(6258):334-9. doi: 10.1126/science.aad0616.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA. Department of Microbiology and Immunobiology, Division of Immunology, Harvard Medical School, Boston MA. ; Department of Pediatric Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA. Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA. ; Department of Pediatric Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA. ; Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA. ; Bioinfo, Plantagenet, Canada. ; Institut de Genetique et de Biologie Moleculaire et Cellulaire (IGBMC), INSERM U964, CNRS UMR 7104, Universite de Strasbourg, 67404 Illkirch, France. Faculte de Medecine, Universite de Strasbourg, Strasbourg, France. ; Department of Pediatric Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA. Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA. Broad Institute of MIT and Harvard, Cambridge, MA, USA. ; Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA. Department of Microbiology and Immunobiology, Division of Immunology, Harvard Medical School, Boston MA. harvey_cantor@dfci.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26472910" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoimmunity/genetics/*immunology ; CD8-Positive T-Lymphocytes/*immunology ; DNA-Binding Proteins/*biosynthesis/genetics ; Forkhead Transcription Factors/immunology ; Gene Expression ; Kidney/immunology ; Liver/immunology ; Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Pancreas/immunology ; STAT5 Transcription Factor/metabolism ; T-Lymphocytes, Regulatory/*immunology ; Transcription Factors/*biosynthesis/genetics
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  • 88
    Publication Date: 2015-07-25
    Description: Development of the cerebral cortex is influenced by sensory experience during distinct phases of postnatal development known as critical periods. Disruption of experience during a critical period produces neurons that lack specificity for particular stimulus features, such as location in the somatosensory system. Synaptic plasticity is the agent by which sensory experience affects cortical development. Here, we describe, in mice, a developmental critical period that affects plasticity itself. Transient neonatal disruption of signaling via the C-terminal domain of "disrupted in schizophrenia 1" (DISC1)-a molecule implicated in psychiatric disorders-resulted in a lack of long-term potentiation (LTP) (persistent strengthening of synapses) and experience-dependent potentiation in adulthood. Long-term depression (LTD) (selective weakening of specific sets of synapses) and reversal of LTD were present, although impaired, in adolescence and absent in adulthood. These changes may form the basis for the cognitive deficits associated with mutations in DISC1 and the delayed onset of a range of psychiatric symptoms in late adolescence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Greenhill, Stuart D -- Juczewski, Konrad -- de Haan, Annelies M -- Seaton, Gillian -- Fox, Kevin -- Hardingham, Neil R -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2015 Jul 24;349(6246):424-7. doi: 10.1126/science.aaa8481.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biosciences, Cardiff University, Cardiff, CF23 3AX, UK. ; National Institute on Alcohol Abuse and Alcoholism, NIH, Rockville, MD 20852, USA. ; School of Biosciences, Cardiff University, Cardiff, CF23 3AX, UK. sbinrh@cardiff.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26206934" target="_blank"〉PubMed〈/a〉
    Keywords: Age of Onset ; Animals ; Cerebral Cortex/*growth & development/physiopathology ; Cognition Disorders/genetics/physiopathology ; Long-Term Potentiation/drug effects/*genetics ; Mental Disorders/*genetics/physiopathology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutation ; Nerve Tissue Proteins/*genetics ; Neuronal Plasticity/drug effects/*genetics ; Synapses/drug effects/physiology ; Tamoxifen/pharmacology
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  • 89
    Publication Date: 2015-09-26
    Description: Dying cells initiate adaptive immunity by providing both antigens and inflammatory stimuli for dendritic cells, which in turn activate CD8(+) T cells through a process called antigen cross-priming. To define how different forms of programmed cell death influence immunity, we established models of necroptosis and apoptosis, in which dying cells are generated by receptor-interacting protein kinase-3 and caspase-8 dimerization, respectively. We found that the release of inflammatory mediators, such as damage-associated molecular patterns, by dying cells was not sufficient for CD8(+) T cell cross-priming. Instead, robust cross-priming required receptor-interacting protein kinase-1 (RIPK1) signaling and nuclear factor kappaB (NF-kappaB)-induced transcription within dying cells. Decoupling NF-kappaB signaling from necroptosis or inflammatory apoptosis reduced priming efficiency and tumor immunity. Our results reveal that coordinated inflammatory and cell death signaling pathways within dying cells orchestrate adaptive immunity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4651449/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4651449/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yatim, Nader -- Jusforgues-Saklani, Helene -- Orozco, Susana -- Schulz, Oliver -- Barreira da Silva, Rosa -- Reis e Sousa, Caetano -- Green, Douglas R -- Oberst, Andrew -- Albert, Matthew L -- 5R01AI108685-02/AI/NIAID NIH HHS/ -- AI44848/AI/NIAID NIH HHS/ -- R01 AI108685/AI/NIAID NIH HHS/ -- R01AI108685/AI/NIAID NIH HHS/ -- R21 CA185681/CA/NCI NIH HHS/ -- R21CA185681/CA/NCI NIH HHS/ -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2015 Oct 16;350(6258):328-34. doi: 10.1126/science.aad0395. Epub 2015 Sep 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Dendritic Cell Biology, Department of Immunology, Institut Pasteur, 25 Rue du Docteur Roux, 75015 Paris, France. Institut National de la Sante et de la Recherche Medicale, U818, 25 Rue du Docteur Roux, 75015 Paris, France. Frontieres du Vivant Doctoral School, Ecole Doctorale 474, Universite Paris Diderot-Paris 7, Sorbonne Paris Cite, 8-10 Rue Charles V, 75004 Paris, France. ; Laboratory of Dendritic Cell Biology, Department of Immunology, Institut Pasteur, 25 Rue du Docteur Roux, 75015 Paris, France. Institut National de la Sante et de la Recherche Medicale, U818, 25 Rue du Docteur Roux, 75015 Paris, France. ; Department of Immunology, University of Washington, Campus Box 358059, 750 Republican Street, Seattle, WA 98109, USA. ; Immunobiology Laboratory, The Francis Crick Institute, Lincoln's Inn Fields Laboratory, 44 Lincoln's Inn Fields, London WC2A 3LY, UK. ; Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26405229" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis/*immunology ; CD8-Positive T-Lymphocytes/*immunology ; Caspase 8/metabolism ; Cell Survival ; Cross-Priming ; Dendritic Cells/immunology ; Mice ; Mice, Inbred C57BL ; NF-kappa B/*metabolism ; NIH 3T3 Cells ; Receptor-Interacting Protein Serine-Threonine Kinases/genetics/*metabolism ; Signal Transduction
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  • 90
    Publication Date: 2016-01-23
    Description: Mono-ubiquitination of Fancd2 is essential for repairing DNA interstrand cross-links (ICLs), but the underlying mechanisms are unclear. The Fan1 nuclease, also required for ICL repair, is recruited to ICLs by ubiquitinated (Ub) Fancd2. This could in principle explain how Ub-Fancd2 promotes ICL repair, but we show that recruitment of Fan1 by Ub-Fancd2 is dispensable for ICL repair. Instead, Fan1 recruitment--and activity--restrains DNA replication fork progression and prevents chromosome abnormalities from occurring when DNA replication forks stall, even in the absence of ICLs. Accordingly, Fan1 nuclease-defective knockin mice are cancer-prone. Moreover, we show that a Fan1 variant in high-risk pancreatic cancers abolishes recruitment by Ub-Fancd2 and causes genetic instability without affecting ICL repair. Therefore, Fan1 recruitment enables processing of stalled forks that is essential for genome stability and health.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4770513/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4770513/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lachaud, Christophe -- Moreno, Alberto -- Marchesi, Francesco -- Toth, Rachel -- Blow, J Julian -- Rouse, John -- WT096598MA/Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2016 Feb 19;351(6275):846-9. doi: 10.1126/science.aad5634. Epub 2016 Jan 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, Sir James Black Centre, University of Dundee, Dundee DD1 5EH, Scotland, UK. ; Centre for Gene Regulation and Expression, College of Life Sciences, Sir James Black Centre, University of Dundee, Dundee DD1 5EH, Scotland, UK. ; School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow G61 1QH, UK. ; Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, Sir James Black Centre, University of Dundee, Dundee DD1 5EH, Scotland, UK. j.rouse@dundee.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26797144" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Chromosome Aberrations ; DNA Repair ; *DNA Replication ; Endodeoxyribonucleases/genetics/*metabolism ; Fanconi Anemia Complementation Group D2 Protein/genetics/*metabolism ; Female ; Gene Knock-In Techniques ; Genetic Predisposition to Disease ; Genomic Instability/*genetics ; Liver Neoplasms/genetics/pathology ; Lung Neoplasms/genetics/pathology ; Lymphoma/genetics/pathology ; Male ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Pancreatic Neoplasms/*genetics ; *Ubiquitination
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  • 91
    Publication Date: 2016-03-19
    Description: Maintaining energy homeostasis is crucial for the survival and health of organisms. The brain regulates feeding by responding to dietary factors and metabolic signals from peripheral organs. It is unclear how the brain interprets these signals. O-GlcNAc transferase (OGT) catalyzes the posttranslational modification of proteins by O-GlcNAc and is regulated by nutrient access. Here, we show that acute deletion of OGT from alphaCaMKII-positive neurons in adult mice caused obesity from overeating. The hyperphagia derived from the paraventricular nucleus (PVN) of the hypothalamus, where loss of OGT was associated with impaired satiety. These results identify O-GlcNAcylation in alphaCaMKII neurons of the PVN as an important molecular mechanism that regulates feeding behavior.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4817221/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4817221/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lagerlof, Olof -- Slocomb, Julia E -- Hong, Ingie -- Aponte, Yeka -- Blackshaw, Seth -- Hart, Gerald W -- Huganir, Richard L -- N01-HV-00240/HV/NHLBI NIH HHS/ -- P01 HL107153/HL/NHLBI NIH HHS/ -- P01HL107153/HL/NHLBI NIH HHS/ -- R01 DK061671/DK/NIDDK NIH HHS/ -- R01 NS036715/NS/NINDS NIH HHS/ -- R01DK6167/DK/NIDDK NIH HHS/ -- R01NS036715/NS/NINDS NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2016 Mar 18;351(6279):1293-6. doi: 10.1126/science.aad5494.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Solomon H. Snyder Department of Neuroscience, Kavli Neuroscience Discovery Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. ; National Institute on Drug Abuse + National Institutes of Health/Johns Hopkins University Graduate Partnership Program, Baltimore, MD 21224, USA. ; Solomon H. Snyder Department of Neuroscience, Kavli Neuroscience Discovery Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. ; Solomon H. Snyder Department of Neuroscience, Kavli Neuroscience Discovery Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. Intramural Research Program, Neuronal Circuits and Behavior Unit, National Institute on Drug Abuse, Baltimore, MD 21224, USA. ; Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. ; Solomon H. Snyder Department of Neuroscience, Kavli Neuroscience Discovery Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. rhuganir@jhmi.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26989246" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylglucosamine/metabolism ; Animals ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism ; Energy Metabolism/genetics/*physiology ; Feeding Behavior/*physiology ; Gene Deletion ; Homeostasis/genetics ; Hyperphagia/*genetics ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; N-Acetylglucosaminyltransferases/genetics/*physiology ; Neurons/enzymology ; Obesity/genetics ; Paraventricular Hypothalamic Nucleus/cytology/enzymology/*physiology ; Protein Processing, Post-Translational ; Satiety Response/physiology
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  • 92
    Publication Date: 2016-04-30
    Description: Wakefulness is driven by the widespread release of neuromodulators by the ascending arousal system. Yet, it is unclear how these substances orchestrate state-dependent, global changes in neuronal activity. Here, we show that neuromodulators induce increases in the extracellular K(+) concentration ([K(+)]e) in cortical slices electrically silenced by tetrodotoxin. In vivo, arousal was linked to AMPA receptor-independent elevations of [K(+)]e concomitant with decreases in [Ca(2+)]e, [Mg(2+)]e, [H(+)]e, and the extracellular volume. Opposite, natural sleep and anesthesia reduced [K(+)]e while increasing [Ca(2+)]e, [Mg(2+)]e, and [H(+)]e as well as the extracellular volume. Local cortical activity of sleeping mice could be readily converted to the stereotypical electroencephalography pattern of wakefulness by simply imposing a change in the extracellular ion composition. Thus, extracellular ions control the state-dependent patterns of neural activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ding, Fengfei -- O'Donnell, John -- Xu, Qiwu -- Kang, Ning -- Goldman, Nanna -- Nedergaard, Maiken -- NS078167/NS/NINDS NIH HHS/ -- NS078304/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 29;352(6285):550-5. doi: 10.1126/science.aad4821.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA. Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. ; Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA. ; Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA. Center for Basic and Translational Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 2200, Denmark. nedergaard@urmc.rochester.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27126038" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/analysis/metabolism ; Cations/analysis/*metabolism ; Cerebral Cortex/chemistry/drug effects/*physiology ; Electroencephalography ; Magnesium/analysis/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Neurons/drug effects/metabolism/physiology ; Neurotransmitter Agents/metabolism/pharmacology ; Potassium/*metabolism ; Receptors, AMPA/metabolism ; Sleep/drug effects/*physiology ; Sodium Channel Blockers/pharmacology ; Tetrodotoxin/pharmacology ; Wakefulness/drug effects/*physiology
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  • 93
    Publication Date: 2016-01-30
    Description: Infection elicits CD4(+) memory T lymphocytes that participate in protective immunity. Although memory cells are the progeny of naive T cells, it is unclear that all naive cells from a polyclonal repertoire have memory cell potential. Using a single-cell adoptive transfer and spleen biopsy method, we found that in mice, essentially all microbe-specific naive cells produced memory cells during infection. Different clonal memory cell populations had different B cell or macrophage helper compositions that matched effector cell populations generated much earlier in the response. Thus, each microbe-specific naive CD4(+) T cell produces a distinctive ratio of effector cell types early in the immune response that is maintained as some cells in the clonal population become memory cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4776317/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4776317/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tubo, Noah J -- Fife, Brian T -- Pagan, Antonio J -- Kotov, Dmitri I -- Goldberg, Michael F -- Jenkins, Marc K -- F32 AI107995/AI/NIAID NIH HHS/ -- R01 AI039614/AI/NIAID NIH HHS/ -- R01 AI106791/AI/NIAID NIH HHS/ -- T32 HL007062/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2016 Jan 29;351(6272):511-4. doi: 10.1126/science.aad0483.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immune Mediated Disease Therapy Group, Genzyme, a Sanofi Company, Framingham, MA 01701, USA. ; Department of Medicine, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55455, USA. ; Department of Medicine, MRC Laboratory of Molecular Biology, Cambridge, UK. ; Department of Microbiology and Immunology, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55455, USA. ; Department of Microbiology and Immunology, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55455, USA. jenki002@umn.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26823430" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; B-Lymphocytes/immunology ; Bacterial Toxins/immunology ; CD4-Positive T-Lymphocytes/*immunology/*microbiology ; Clone Cells/immunology ; Heat-Shock Proteins/immunology ; Hemolysin Proteins/immunology ; *Immunologic Memory ; Listeria monocytogenes/*immunology ; Listeriosis/*immunology ; Mice ; Mice, Inbred C57BL ; Receptors, CXCR5/genetics/immunology ; Single-Cell Analysis
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  • 94
    Publication Date: 2016-03-19
    Description: Steroids regulate cell proliferation, tissue development, and cell signaling via two pathways: a nuclear receptor mechanism and genome-independent signaling. Sperm activation, egg maturation, and steroid-induced anesthesia are executed via the latter pathway, the key components of which remain unknown. Here, we present characterization of the human sperm progesterone receptor that is conveyed by the orphan enzyme alpha/beta hydrolase domain-containing protein 2 (ABHD2). We show that ABHD2 is highly expressed in spermatozoa, binds progesterone, and acts as a progesterone-dependent lipid hydrolase by depleting the endocannabinoid 2-arachidonoylglycerol (2AG) from plasma membrane. The 2AG inhibits the sperm calcium channel (CatSper), and its removal leads to calcium influx via CatSper and ensures sperm activation. This study reveals that progesterone-activated endocannabinoid depletion by ABHD2 is a general mechanism by which progesterone exerts its genome-independent action and primes sperm for fertilization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Melissa R -- Mannowetz, Nadja -- Iavarone, Anthony T -- Safavi, Rojin -- Gracheva, Elena O -- Smith, James F -- Hill, Rose Z -- Bautista, Diana M -- Kirichok, Yuriy -- Lishko, Polina V -- 1S10OD020062-01/OD/NIH HHS/ -- R01 AR059385/AR/NIAMS NIH HHS/ -- R01AR059385/AR/NIAMS NIH HHS/ -- R01GM111802/GM/NIGMS NIH HHS/ -- R01HD068914/HD/NICHD NIH HHS/ -- R21HD081403/HD/NICHD NIH HHS/ -- S10RR025622/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 29;352(6285):555-9. doi: 10.1126/science.aad6887. Epub 2016 Mar 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA. ; QB3/Chemistry Mass Spectrometry Facility, University of California, Berkeley, CA 94720, USA. ; Department of Cellular and Molecular Physiology; Department of Neuroscience, Program in Cellular Neuroscience, Neurodegeneration, and Repair (CNNR), Yale School of Medicine, Yale University, New Haven, CT 06536, USA. ; Department of Urology, University of California, San Francisco, CA 94143, USA. ; Department of Physiology, University of California, San Francisco, CA 94158, USA. ; Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA. lishko@berkeley.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26989199" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Arachidonic Acids/*deficiency ; Calcium/metabolism ; Calcium Channels/metabolism ; Calcium Signaling ; Cell Membrane/metabolism ; Endocannabinoids/*deficiency ; Fertilization ; Glycerides/*deficiency ; Humans ; Hydrolases/genetics/*metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Progesterone/*metabolism/pharmacology ; Rats ; Rats, Wistar ; Receptors, Progesterone/genetics/*metabolism ; Sperm Motility/drug effects/*physiology ; Spermatozoa/drug effects/metabolism/*physiology ; Young Adult
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  • 95
    Publication Date: 2016-04-23
    Description: Progression through the stages of lymphocyte development requires coordination of the cell cycle. Such coordination ensures genomic integrity while cells somatically rearrange their antigen receptor genes [in a process called variable-diversity-joining (VDJ) recombination] and, upon successful rearrangement, expands the pools of progenitor lymphocytes. Here we show that in developing B lymphocytes, the RNA-binding proteins (RBPs) ZFP36L1 and ZFP36L2 are critical for maintaining quiescence before precursor B cell receptor (pre-BCR) expression and for reestablishing quiescence after pre-BCR-induced expansion. These RBPs suppress an evolutionarily conserved posttranscriptional regulon consisting of messenger RNAs whose protein products cooperatively promote transition into the S phase of the cell cycle. This mechanism promotes VDJ recombination and effective selection of cells expressing immunoglobulin-mu at the pre-BCR checkpoint.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Galloway, Alison -- Saveliev, Alexander -- Lukasiak, Sebastian -- Hodson, Daniel J -- Bolland, Daniel -- Balmanno, Kathryn -- Ahlfors, Helena -- Monzon-Casanova, Elisa -- Mannurita, Sara Ciullini -- Bell, Lewis S -- Andrews, Simon -- Diaz-Munoz, Manuel D -- Cook, Simon J -- Corcoran, Anne -- Turner, Martin -- Medical Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2016 Apr 22;352(6284):453-9. doi: 10.1126/science.aad5978.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge CB22 3AT, UK. ; Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge CB22 3AT, UK. Department of Haematology, University of Cambridge, The Clifford Allbutt Building, Cambridge Biomedical Campus, Hills Road, Cambridge CB2 0AH, UK. ; Laboratory of Nuclear Dynamics, The Babraham Institute, Cambridge CB22 3AT, UK. ; Laboratory of Signalling, The Babraham Institute, Cambridge CB22 3AT, UK. ; Laboratory of Lymphocyte Signalling and Development, The Babraham Institute, Cambridge CB22 3AT, UK. Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QW, UK. ; Bioinformatics Group, The Babraham Institute, Cambridge CB22 3AT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27102483" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*cytology ; Conserved Sequence ; Cyclins/metabolism ; G0 Phase/genetics/physiology ; G1 Phase/genetics/physiology ; Gene Expression Regulation ; Immunoglobulin mu-Chains/genetics ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Nuclear Proteins/genetics/*physiology ; Pre-B Cell Receptors ; RNA, Messenger/metabolism ; RNA-Binding Proteins/genetics/*physiology ; S Phase/genetics/*physiology ; Selection, Genetic ; Transcription, Genetic ; Tristetraprolin/genetics/*physiology ; V(D)J Recombination
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
    Publication Date: 2016-03-19
    Description: Postnatal colonization of the body with microbes is assumed to be the main stimulus to postnatal immune development. By transiently colonizing pregnant female mice, we show that the maternal microbiota shapes the immune system of the offspring. Gestational colonization increases intestinal group 3 innate lymphoid cells and F4/80(+)CD11c(+) mononuclear cells in the pups. Maternal colonization reprograms intestinal transcriptional profiles of the offspring, including increased expression of genes encoding epithelial antibacterial peptides and metabolism of microbial molecules. Some of these effects are dependent on maternal antibodies that potentially retain microbial molecules and transmit them to the offspring during pregnancy and in milk. Pups born to mothers transiently colonized in pregnancy are better able to avoid inflammatory responses to microbial molecules and penetration of intestinal microbes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gomez de Aguero, Mercedes -- Ganal-Vonarburg, Stephanie C -- Fuhrer, Tobias -- Rupp, Sandra -- Uchimura, Yasuhiro -- Li, Hai -- Steinert, Anna -- Heikenwalder, Mathias -- Hapfelmeier, Siegfried -- Sauer, Uwe -- McCoy, Kathy D -- Macpherson, Andrew J -- New York, N.Y. -- Science. 2016 Mar 18;351(6279):1296-302. doi: 10.1126/science.aad2571.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Maurice Muller Laboratories (DKF), Universitatsklinik fur Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3010 Bern, Switzerland. ; Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zurich, 8093 Zurich, Switzerland. ; Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany. ; Institute for Infectious Diseases, University of Bern, 3010 Bern, Switzerland. ; Maurice Muller Laboratories (DKF), Universitatsklinik fur Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3010 Bern, Switzerland. andrew.macpherson@insel.ch.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26989247" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/immunology ; Escherichia coli/immunology ; Female ; Gastrointestinal Microbiome/*immunology ; Germ-Free Life ; Immune System/*growth & development/*microbiology ; Immunity, Innate/genetics/*immunology ; Immunity, Maternally-Acquired/genetics/*immunology ; Intestines/*immunology ; Lymphocytes/immunology ; Mice ; Mice, Inbred C57BL ; Pregnancy ; Symbiosis ; Transcription, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
    Publication Date: 2016-02-06
    Description: The intestinal epithelium forms an essential barrier between a host and its microbiota. Protozoa and helminths are members of the gut microbiota of mammals, including humans, yet the many ways that gut epithelial cells orchestrate responses to these eukaryotes remain unclear. Here we show that tuft cells, which are taste-chemosensory epithelial cells, accumulate during parasite colonization and infection. Disruption of chemosensory signaling through the loss of TRMP5 abrogates the expansion of tuft cells, goblet cells, eosinophils, and type 2 innate lymphoid cells during parasite colonization. Tuft cells are the primary source of the parasite-induced cytokine interleukin-25, which indirectly induces tuft cell expansion by promoting interleukin-13 production by innate lymphoid cells. Our results identify intestinal tuft cells as critical sentinels in the gut epithelium that promote type 2 immunity in response to intestinal parasites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Howitt, Michael R -- Lavoie, Sydney -- Michaud, Monia -- Blum, Arthur M -- Tran, Sara V -- Weinstock, Joel V -- Gallini, Carey Ann -- Redding, Kevin -- Margolskee, Robert F -- Osborne, Lisa C -- Artis, David -- Garrett, Wendy S -- F31DK105653/DK/NIDDK NIH HHS/ -- F32DK098826/DK/NIDDK NIH HHS/ -- R01 CA154426/CA/NCI NIH HHS/ -- R01 GM099531/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2016 Mar 18;351(6279):1329-33. doi: 10.1126/science.aaf1648. Epub 2016 Feb 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Immunology and Infectious Diseases and Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA. ; Division of Gastroenterology, Tufts Medical Center, Boston, MA 02111, USA. ; Monell Chemical Senses Center, Philadelphia, PA 19104, USA. ; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medical College, Cornell University, New York, NY 10021, USA. ; Departments of Immunology and Infectious Diseases and Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA. Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA 02142, USA. Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA. wgarrett@hsph.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26847546" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chemoreceptor Cells/*immunology ; Eosinophils/immunology ; Goblet Cells/immunology ; Helminthiasis/immunology/parasitology ; Helminths/immunology ; Immunity, Mucosal ; Interleukin-13/immunology ; Interleukin-17/immunology ; Intestinal Diseases, Parasitic/*immunology/parasitology ; Intestinal Mucosa/*immunology/*parasitology ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Microbiota/*immunology ; Protein-Serine-Threonine Kinases/immunology ; Protozoan Infections/immunology/parasitology ; Signal Transduction ; TRPM Cation Channels/*immunology ; Taste ; Transducin/genetics/immunology ; Tritrichomonas/immunology
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  • 98
    Publication Date: 2016-03-19
    Description: Tumor-derived extracellular vesicles (tEVs) are important signals in tumor-host cell communication, yet it remains unclear how endogenously produced tEVs affect the host in different areas of the body. We combined imaging and genetic analysis to track melanoma-derived vesicles at organismal, cellular, and molecular scales to show that endogenous tEVs efficiently disseminate via lymphatics and preferentially bind subcapsular sinus (SCS) CD169(+) macrophages in tumor-draining lymph nodes (tdLNs) in mice and humans. The CD169(+) macrophage layer physically blocks tEV dissemination but is undermined during tumor progression and by therapeutic agents. A disrupted SCS macrophage barrier enables tEVs to enter the lymph node cortex, interact with B cells, and foster tumor-promoting humoral immunity. Thus, CD169(+) macrophages may act as tumor suppressors by containing tEV spread and ensuing cancer-enhancing immunity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pucci, Ferdinando -- Garris, Christopher -- Lai, Charles P -- Newton, Andita -- Pfirschke, Christina -- Engblom, Camilla -- Alvarez, David -- Sprachman, Melissa -- Evavold, Charles -- Magnuson, Angela -- von Andrian, Ulrich H -- Glatz, Katharina -- Breakefield, Xandra O -- Mempel, Thorsten R -- Weissleder, Ralph -- Pittet, Mikael J -- 1R01CA164448/CA/NCI NIH HHS/ -- 1R33CA202064/CA/NCI NIH HHS/ -- F31-CA196035/CA/NCI NIH HHS/ -- P01-CA069246/CA/NCI NIH HHS/ -- P50-CA86355/CA/NCI NIH HHS/ -- R01 AI097052/AI/NIAID NIH HHS/ -- R01-AI084880/AI/NIAID NIH HHS/ -- R01EB010011/EB/NIBIB NIH HHS/ -- R21-CA190344/CA/NCI NIH HHS/ -- T32CA79443/CA/NCI NIH HHS/ -- U19 CA179563/CA/NCI NIH HHS/ -- U54-CA126515/CA/NCI NIH HHS/ -- Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2016 Apr 8;352(6282):242-6. doi: 10.1126/science.aaf1328. Epub 2016 Mar 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Systems Biology, Massachusetts General Hospital Research Institute, Harvard Medical School, Boston, MA 02114, USA. ; Center for Systems Biology, Massachusetts General Hospital Research Institute, Harvard Medical School, Boston, MA 02114, USA. Graduate Program in Immunology, Harvard Medical School, Boston, MA 02115, USA. ; Department of Neurology, Massachusetts General Hospital Research Institute, Harvard Medical School, Charlestown, MA 02129, USA. ; Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA. ; Institute of Pathology, University Hospital Basel, 4031 Basel, Switzerland. ; Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital Research Institute, Harvard Medical School, Charlestown, MA 02129, USA. ; Center for Systems Biology, Massachusetts General Hospital Research Institute, Harvard Medical School, Boston, MA 02114, USA. mpittet@mgh.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26989197" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*immunology/ultrastructure ; Cell Communication ; Extracellular Vesicles/*immunology ; Humans ; *Immune Tolerance ; Lymph Nodes/immunology ; Lymphatic Vessels/immunology ; Macrophages/chemistry/*immunology ; Melanoma/*immunology/pathology ; Melanoma, Experimental/immunology/pathology ; Mice ; Mice, Inbred C57BL ; Sialic Acid Binding Ig-like Lectin 1/analysis/immunology ; Skin Neoplasms/*immunology/pathology
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  • 99
    Publication Date: 2016-02-26
    Description: Undernourished children exhibit impaired development of their gut microbiota. Transplanting microbiota from 6- and 18-month-old healthy or undernourished Malawian donors into young germ-free mice that were fed a Malawian diet revealed that immature microbiota from undernourished infants and children transmit impaired growth phenotypes. The representation of several age-discriminatory taxa in recipient animals correlated with lean body mass gain; liver, muscle, and brain metabolism; and bone morphology. Mice were cohoused shortly after receiving microbiota from healthy or severely stunted and underweight infants; age- and growth-discriminatory taxa from the microbiota of the former were able to invade that of the latter, which prevented growth impairments in recipient animals. Adding two invasive species, Ruminococcus gnavus and Clostridium symbiosum, to the microbiota from undernourished donors also ameliorated growth and metabolic abnormalities in recipient animals. These results provide evidence that microbiota immaturity is causally related to undernutrition and reveal potential therapeutic targets and agents.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Blanton, Laura V -- Charbonneau, Mark R -- Salih, Tarek -- Barratt, Michael J -- Venkatesh, Siddarth -- Ilkaveya, Olga -- Subramanian, Sathish -- Manary, Mark J -- Trehan, Indi -- Jorgensen, Josh M -- Fan, Yue-Mei -- Henrissat, Bernard -- Leyn, Semen A -- Rodionov, Dmitry A -- Osterman, Andrei L -- Maleta, Kenneth M -- Newgard, Christopher B -- Ashorn, Per -- Dewey, Kathryn G -- Gordon, Jeffrey I -- R37 DK030292/DK/NIDDK NIH HHS/ -- T32 AI007172/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2016 Feb 19;351(6275). pii: aad3311. doi: 10.1126/science.aad3311.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genome Sciences and Systems Biology and Center for Gut Microbiome and Nutrition Research, Washington University School of Medicine, St. Louis, MO 63108, USA. ; Sarah W. Stedman Nutrition and Metabolism Centerand Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC 27710, USA. ; Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA. School of Public Health and Family Medicine, College of Medicine, University of Malawi, Chichiri, Blantyre 3, Malawi. ; Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA. Department of Paediatrics and Child Health, College of Medicine, University of Malawi, Chichiri, Blantyre 3, Malawi. ; Department of Nutrition and Program in International and Community Nutrition, University of California-Davis, Davis, CA 95616, USA. ; Department for International Health, University of Tampere School of Medicine, Tampere 33014, Finland. ; Architecture et Fonction des Macromolecules Biologiques, Centre National de la Recherche Scientifique and Aix-Marseille Universite, 13288 Marseille Cedex 9, France. Department of Biological Sciences, King Abdulaziz University, Jeddah, Saudi Arabia. ; A. A. Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow 127994, Russia. ; A. A. Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow 127994, Russia. Infectious and Inflammatory Disease Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA. ; Infectious and Inflammatory Disease Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA. ; School of Public Health and Family Medicine, College of Medicine, University of Malawi, Chichiri, Blantyre 3, Malawi. ; Sarah W. Stedman Nutrition and Metabolism Centerand Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC 27710, USA. Department of Pharmacology and Cancer Biology and Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA. ; Department for International Health, University of Tampere School of Medicine, Tampere 33014, Finland. Department of Pediatrics, Tampere University Hospital, Tampere 33521, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26912898" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/*classification ; Bifidobacterium/physiology ; Body Weight ; Bone Development ; Clostridiales/physiology ; Disease Models, Animal ; Feces/microbiology ; Femur/growth & development ; Gastrointestinal Microbiome/*physiology ; Germ-Free Life ; Humans ; Infant ; Infant Nutrition Disorders/metabolism/*microbiology ; Malawi ; Male ; Mice ; Mice, Inbred C57BL
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  • 100
    Publication Date: 2015-12-05
    Description: Whereas the cellular basis of the hematopoietic stem cell (HSC) niche in the bone marrow has been characterized, the nature of the fetal liver niche is not yet elucidated. We show that Nestin(+)NG2(+) pericytes associate with portal vessels, forming a niche promoting HSC expansion. Nestin(+)NG2(+) cells and HSCs scale during development with the fractal branching patterns of portal vessels, tributaries of the umbilical vein. After closure of the umbilical inlet at birth, portal vessels undergo a transition from Neuropilin-1(+)Ephrin-B2(+) artery to EphB4(+) vein phenotype, associated with a loss of periportal Nestin(+)NG2(+) cells and emigration of HSCs away from portal vessels. These data support a model in which HSCs are titrated against a periportal vascular niche with a fractal-like organization enabled by placental circulation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4706788/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4706788/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Khan, Jalal A -- Mendelson, Avital -- Kunisaki, Yuya -- Birbrair, Alexander -- Kou, Yan -- Arnal-Estape, Anna -- Pinho, Sandra -- Ciero, Paul -- Nakahara, Fumio -- Ma'ayan, Avi -- Bergman, Aviv -- Merad, Miriam -- Frenette, Paul S -- CA164468/CA/NCI NIH HHS/ -- DA033788/DA/NIDA NIH HHS/ -- DK056638/DK/NIDDK NIH HHS/ -- F30 943257/PHS HHS/ -- F32 HL123224/HL/NHLBI NIH HHS/ -- HL069438/HL/NHLBI NIH HHS/ -- HL097700/HL/NHLBI NIH HHS/ -- R01 CA173861/CA/NCI NIH HHS/ -- R01 CA190400/CA/NCI NIH HHS/ -- R01 DA033788/DA/NIDA NIH HHS/ -- R01 DK056638/DK/NIDDK NIH HHS/ -- R01 HL069438/HL/NHLBI NIH HHS/ -- R01 HL116340/HL/NHLBI NIH HHS/ -- R01GM098316/GM/NIGMS NIH HHS/ -- T32 063754/PHS HHS/ -- U54 HL127624/HL/NHLBI NIH HHS/ -- U54CA189201/CA/NCI NIH HHS/ -- U54HL127624/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2016 Jan 8;351(6269):176-80. doi: 10.1126/science.aad0084. Epub 2015 Dec 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research. Albert Einstein College of Medicine, Bronx, NY, USA. Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA. Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA. ; Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research. Albert Einstein College of Medicine, Bronx, NY, USA. Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA. ; Department of Pharmacology and Systems Therapeutics, Icahn School of Medicine at Mount Sinai, New York, NY, USA. ; Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research. Albert Einstein College of Medicine, Bronx, NY, USA. ; Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, NY, USA. ; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA. ; Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research. Albert Einstein College of Medicine, Bronx, NY, USA. Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA. Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA. paul.frenette@einstein.yu.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26634440" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens/analysis ; Ephrin-B2/analysis ; Female ; Hematopoietic Stem Cells/*physiology ; Liver/blood supply/*embryology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Nestin/analysis ; Neuropilin-1/analysis ; Placental Circulation ; Portal System/chemistry/*embryology ; Pregnancy ; Proteoglycans/analysis ; Receptor, EphB4/analysis ; Stem Cell Niche/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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