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  • Articles  (32)
  • Signal Transduction  (32)
  • American Association for the Advancement of Science (AAAS)  (32)
  • 2010-2014  (32)
  • 2013  (10)
  • 2011  (22)
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  • Articles  (32)
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  • 2010-2014  (32)
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  • 1
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    Phosphorylation of ULK1 (hATG1) by AMP-activated protein kinase connects energy sensing to mitophagy (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-06
    Description: Adenosine monophosphate-activated protein kinase (AMPK) is a conserved sensor of intracellular energy activated in response to low nutrient availability and environmental stress. In a screen for conserved substrates of AMPK, we identified ULK1 and ULK2, mammalian orthologs of the yeast protein kinase Atg1, which is required for autophagy. Genetic analysis of AMPK or ULK1 in mammalian liver and Caenorhabditis elegans revealed a requirement for these kinases in autophagy. In mammals, loss of AMPK or ULK1 resulted in aberrant accumulation of the autophagy adaptor p62 and defective mitophagy. Reconstitution of ULK1-deficient cells with a mutant ULK1 that cannot be phosphorylated by AMPK revealed that such phosphorylation is required for mitochondrial homeostasis and cell survival during starvation. These findings uncover a conserved biochemical mechanism coupling nutrient status with autophagy and cell survival.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3030664/" 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/PMC3030664/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Egan, Daniel F -- Shackelford, David B -- Mihaylova, Maria M -- Gelino, Sara -- Kohnz, Rebecca A -- Mair, William -- Vasquez, Debbie S -- Joshi, Aashish -- Gwinn, Dana M -- Taylor, Rebecca -- Asara, John M -- Fitzpatrick, James -- Dillin, Andrew -- Viollet, Benoit -- Kundu, Mondira -- Hansen, Malene -- Shaw, Reuben J -- 1P01CA120964/CA/NCI NIH HHS/ -- 1P01CA120964-01A/CA/NCI NIH HHS/ -- 5P30CA006516-43/CA/NCI NIH HHS/ -- P01 CA120964/CA/NCI NIH HHS/ -- P01 CA120964-05/CA/NCI NIH HHS/ -- P30 CA006516/CA/NCI NIH HHS/ -- P30 CA006516-43/CA/NCI NIH HHS/ -- P30CA014195/CA/NCI NIH HHS/ -- R01 DK080425/DK/NIDDK NIH HHS/ -- R01 DK080425-04/DK/NIDDK NIH HHS/ -- R01 DK080425-05/DK/NIDDK NIH HHS/ -- T32 CA009370/CA/NCI NIH HHS/ -- T32 CA009370-29/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Jan 28;331(6016):456-61. doi: 10.1126/science.1196371. Epub 2010 Dec 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cell Biology Laboratory, Dulbecco Center for Cancer Research, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21205641" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/*metabolism ; Adaptor Proteins, Signal Transducing/metabolism ; Animals ; *Autophagy ; Caenorhabditis elegans/metabolism ; Caenorhabditis elegans Proteins/genetics/metabolism ; Cell Line ; Cell Line, Tumor ; Cell Survival ; Energy Metabolism ; Hepatocytes/metabolism ; Humans ; Insulin/metabolism ; Intracellular Signaling Peptides and Proteins/chemistry/genetics/*metabolism ; Liver/metabolism ; Metformin/pharmacology ; Mice ; Mitochondria, Liver/metabolism/ultrastructure ; Phenformin/pharmacology ; Phosphorylation ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Signal Transduction ; Transcription Factors/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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  • 2
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    The mutational landscape of head and neck squamous cell carcinoma (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-30
    Description: Head and neck squamous cell carcinoma (HNSCC) is a common, morbid, and frequently lethal malignancy. To uncover its mutational spectrum, we analyzed whole-exome sequencing data from 74 tumor-normal pairs. The majority exhibited a mutational profile consistent with tobacco exposure; human papillomavirus was detectable by sequencing DNA from infected tumors. In addition to identifying previously known HNSCC genes (TP53, CDKN2A, PTEN, PIK3CA, and HRAS), our analysis revealed many genes not previously implicated in this malignancy. At least 30% of cases harbored mutations in genes that regulate squamous differentiation (for example, NOTCH1, IRF6, and TP63), implicating its dysregulation as a major driver of HNSCC carcinogenesis. More generally, the results indicate the ability of large-scale sequencing to reveal fundamental tumorigenic mechanisms.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3415217/" 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/PMC3415217/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stransky, Nicolas -- Egloff, Ann Marie -- Tward, Aaron D -- Kostic, Aleksandar D -- Cibulskis, Kristian -- Sivachenko, Andrey -- Kryukov, Gregory V -- Lawrence, Michael S -- Sougnez, Carrie -- McKenna, Aaron -- Shefler, Erica -- Ramos, Alex H -- Stojanov, Petar -- Carter, Scott L -- Voet, Douglas -- Cortes, Maria L -- Auclair, Daniel -- Berger, Michael F -- Saksena, Gordon -- Guiducci, Candace -- Onofrio, Robert C -- Parkin, Melissa -- Romkes, Marjorie -- Weissfeld, Joel L -- Seethala, Raja R -- Wang, Lin -- Rangel-Escareno, Claudia -- Fernandez-Lopez, Juan Carlos -- Hidalgo-Miranda, Alfredo -- Melendez-Zajgla, Jorge -- Winckler, Wendy -- Ardlie, Kristin -- Gabriel, Stacey B -- Meyerson, Matthew -- Lander, Eric S -- Getz, Gad -- Golub, Todd R -- Garraway, Levi A -- Grandis, Jennifer R -- P50 CA097190/CA/NCI NIH HHS/ -- R01 CA077308/CA/NCI NIH HHS/ -- R01 CA098372/CA/NCI NIH HHS/ -- UL1 TR000005/TR/NCATS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Aug 26;333(6046):1157-60. doi: 10.1126/science.1208130. Epub 2011 Jul 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21798893" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Apoptosis ; Carcinoma/*genetics/metabolism/virology ; Carcinoma, Squamous Cell ; Cell Differentiation ; Exons ; Head and Neck Neoplasms/*genetics/metabolism/virology ; Humans ; *Mutation ; Neoplasms, Squamous Cell/*genetics/metabolism/virology ; Papillomaviridae/isolation & purification ; Papillomavirus Infections/virology ; Point Mutation ; Receptor, Notch1/*genetics/metabolism ; *Sequence Analysis, DNA ; Sequence Deletion ; Signal Transduction ; Smoking ; Tobacco
    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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  • 3
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    Minimal "Self" peptides that inhibit phagocytic clearance and enhance delivery of nanoparticles (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-02-23
    Description: Foreign particles and cells are cleared from the body by phagocytes that must also recognize and avoid clearance of "self" cells. The membrane protein CD47 is reportedly a "marker of self" in mice that impedes phagocytosis of self by signaling through the phagocyte receptor CD172a. Minimal "Self" peptides were computationally designed from human CD47 and then synthesized and attached to virus-size particles for intravenous injection into mice that express a CD172a variant compatible with hCD47. Self peptides delay macrophage-mediated clearance of nanoparticles, which promotes persistent circulation that enhances dye and drug delivery to tumors. Self-peptide affinity for CD172a is near the optimum measured for human CD172a variants, and Self peptide also potently inhibits nanoparticle uptake mediated by the contractile cytoskeleton. The reductionist approach reveals the importance of human Self peptides and their utility in enhancing drug delivery and imaging.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3966479/" 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/PMC3966479/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rodriguez, Pia L -- Harada, Takamasa -- Christian, David A -- Pantano, Diego A -- Tsai, Richard K -- Discher, Dennis E -- 8UL1TR000003/TR/NCATS NIH HHS/ -- P01-DK032094/DK/NIDDK NIH HHS/ -- P30-DK090969/DK/NIDDK NIH HHS/ -- R01 EB007049/EB/NIBIB NIH HHS/ -- R01 HL062352/HL/NHLBI NIH HHS/ -- R01-EB007049/EB/NIBIB NIH HHS/ -- R01-HL062352/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2013 Feb 22;339(6122):971-5. doi: 10.1126/science.1229568.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cell Biophysics and NanoBioPolymers Laboratory, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23430657" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigens, CD47/chemistry/immunology/metabolism ; Antigens, Differentiation/*metabolism ; Antineoplastic Agents/administration & dosage ; Autoantigens ; Blood Circulation ; Diagnostic Imaging/methods ; Drug Delivery Systems/*methods ; Humans ; Mice ; Mice, Inbred NOD ; Mice, SCID ; *Nanoparticles/administration & dosage/analysis ; Neoplasms/chemistry/diagnosis/drug therapy ; Paclitaxel/administration & dosage ; Particle Size ; Peptide Fragments/chemical synthesis/chemistry/immunology/*metabolism ; Phagocytes/immunology/metabolism ; *Phagocytosis ; Receptors, Immunologic/immunology/*metabolism ; Signal Transduction
    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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  • 4
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    Pretreatment mitochondrial priming correlates with clinical response to cytotoxic chemotherapy (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-29
    Description: Cytotoxic chemotherapy targets elements common to all nucleated human cells, such as DNA and microtubules, yet it selectively kills tumor cells. Here we show that clinical response to these drugs correlates with, and may be partially governed by, the pretreatment proximity of tumor cell mitochondria to the apoptotic threshold, a property called mitochondrial priming. We used BH3 profiling to measure priming in tumor cells from patients with multiple myeloma, acute myelogenous and lymphoblastic leukemia, and ovarian cancer. This assay measures mitochondrial response to peptides derived from proapoptotic BH3 domains of proteins critical for death signaling to mitochondria. Patients with highly primed cancers exhibited superior clinical response to chemotherapy. In contrast, chemoresistant cancers and normal tissues were poorly primed. Manipulation of mitochondrial priming might enhance the efficacy of cytotoxic agents.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3280949/" 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/PMC3280949/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ni Chonghaile, Triona -- Sarosiek, Kristopher A -- Vo, Thanh-Trang -- Ryan, Jeremy A -- Tammareddi, Anupama -- Moore, Victoria Del Gaizo -- Deng, Jing -- Anderson, Kenneth C -- Richardson, Paul -- Tai, Yu-Tzu -- Mitsiades, Constantine S -- Matulonis, Ursula A -- Drapkin, Ronny -- Stone, Richard -- Deangelo, Daniel J -- McConkey, David J -- Sallan, Stephen E -- Silverman, Lewis -- Hirsch, Michelle S -- Carrasco, Daniel Ruben -- Letai, Anthony -- P01CA068484/CA/NCI NIH HHS/ -- P01CA139980/CA/NCI NIH HHS/ -- R01 CA129974/CA/NCI NIH HHS/ -- R01 CA129974-05/CA/NCI NIH HHS/ -- R01CA129974/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 Nov 25;334(6059):1129-33. doi: 10.1126/science.1206727. Epub 2011 Oct 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22033517" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Animals ; Antineoplastic Agents/*therapeutic use ; *Apoptosis ; Cell Line, Tumor ; Cell Proliferation ; Child ; Disease-Free Survival ; Drug Resistance, Neoplasm ; Female ; Humans ; Leukemia, Myeloid, Acute/drug therapy/physiopathology ; Male ; Membrane Potential, Mitochondrial ; Mice ; Mice, Inbred C57BL ; Middle Aged ; Mitochondria/*physiology ; Multiple Myeloma/drug therapy/physiopathology ; Neoplasms/*drug therapy/*physiopathology ; Ovarian Neoplasms/drug therapy/physiopathology ; Peptide Fragments/metabolism ; Permeability ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/drug therapy/physiopathology ; Proto-Oncogene Proteins c-bcl-2/chemistry/metabolism ; Remission Induction ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 5
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    Transplanted hypothalamic neurons restore leptin signaling and ameliorate obesity in db/db mice (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-26
    Description: Evolutionarily old and conserved homeostatic systems in the brain, including the hypothalamus, are organized into nuclear structures of heterogeneous and diverse neuron populations. To investigate whether such circuits can be functionally reconstituted by synaptic integration of similarly diverse populations of neurons, we generated physically chimeric hypothalami by microtransplanting small numbers of embryonic enhanced green fluorescent protein-expressing, leptin-responsive hypothalamic cells into hypothalami of postnatal leptin receptor-deficient (db/db) mice that develop morbid obesity. Donor neurons differentiated and integrated as four distinct hypothalamic neuron subtypes, formed functional excitatory and inhibitory synapses, partially restored leptin responsiveness, and ameliorated hyperglycemia and obesity in db/db mice. These experiments serve as a proof of concept that transplanted neurons can functionally reconstitute complex neuronal circuitry in the mammalian brain.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3770458/" 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/PMC3770458/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Czupryn, Artur -- Zhou, Yu-Dong -- Chen, Xi -- McNay, David -- Anderson, Matthew P -- Flier, Jeffrey S -- Macklis, Jeffrey D -- DKR37-28082/PHS HHS/ -- K02 NS054674/NS/NINDS NIH HHS/ -- NS054674/NS/NINDS NIH HHS/ -- NS057444/NS/NINDS NIH HHS/ -- NS070295/NS/NINDS NIH HHS/ -- NS41590/NS/NINDS NIH HHS/ -- NS45523/NS/NINDS NIH HHS/ -- NS49553/NS/NINDS NIH HHS/ -- R01 NS041590/NS/NINDS NIH HHS/ -- R01 NS045523/NS/NINDS NIH HHS/ -- R01 NS049553/NS/NINDS NIH HHS/ -- R01 NS057444/NS/NINDS NIH HHS/ -- R21 NS070295/NS/NINDS NIH HHS/ -- R37 DK028082/DK/NIDDK NIH HHS/ -- R37 NS041590/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2011 Nov 25;334(6059):1133-7. doi: 10.1126/science.1209870.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Stem Cell and Regenerative Biology, and Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22116886" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/analysis ; Body Weight ; Cell Shape ; Electrophysiological Phenomena ; Excitatory Postsynaptic Potentials ; Glucose/administration & dosage ; Hypothalamus/*cytology/metabolism ; Hypothalamus, Middle/*cytology/metabolism/*physiopathology ; Inhibitory Postsynaptic Potentials ; Insulin/administration & dosage/blood ; Leptin/administration & dosage/*metabolism ; Membrane Potentials ; Mice ; Mice, Obese ; Neurogenesis ; Neurons/cytology/*physiology/*transplantation ; Obesity/metabolism/*physiopathology/*therapy ; Receptors, Leptin/*metabolism ; Signal Transduction ; Synaptic Transmission
    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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  • 6
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    Intramembrane cleavage of AMA1 triggers Toxoplasma to switch from an invasive to a replicative mode (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-06
    Description: Apicomplexan parasites invade host cells and immediately initiate cell division. The extracellular parasite discharges transmembrane proteins onto its surface to mediate motility and invasion. These are shed by intramembrane cleavage, a process associated with invasion but otherwise poorly understood. Functional analysis of Toxoplasma rhomboid 4, a surface intramembrane protease, by conditional overexpression of a catalytically inactive form produced a profound block in replication. This was completely rescued by expression of the cleaved cytoplasmic tail of Toxoplasma or Plasmodium apical membrane antigen 1 (AMA1). These results reveal an unexpected function for AMA1 in parasite replication and suggest that invasion proteins help to promote parasite switch from an invasive to a replicative mode.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Santos, Joana M -- Ferguson, David J P -- Blackman, Michael J -- Soldati-Favre, Dominique -- MC_U117532063/Medical Research Council/United Kingdom -- U117532063/Medical Research Council/United Kingdom -- Howard Hughes Medical Institute/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2011 Jan 28;331(6016):473-7. doi: 10.1126/science.1199284. Epub 2010 Dec 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Faculty of Medicine, University of Geneva, 1 rue-Michel Servet, 1211 Geneva 4, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21205639" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Protozoan/chemistry/genetics/*metabolism ; Cell Cycle ; Cell Division ; Cell Membrane/metabolism ; Cells, Cultured ; Fibroblasts/parasitology ; Humans ; Membrane Proteins/chemistry/genetics/*metabolism ; Movement ; Mutant Proteins/metabolism ; Plasmodium falciparum ; Protozoan Proteins/chemistry/genetics/*metabolism ; Serine Proteases/genetics/metabolism ; Signal Transduction ; Toxoplasma/cytology/growth & development/*physiology
    Print ISSN: 0036-8075
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  • 7
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    Pivotal roles of cGAS-cGAMP signaling in antiviral defense and immune adjuvant effects (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-08-31
    Description: Invasion of microbial DNA into the cytoplasm of animal cells triggers a cascade of host immune reactions that help clear the infection; however, self DNA in the cytoplasm can cause autoimmune diseases. Biochemical approaches led to the identification of cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) synthase (cGAS) as a cytosolic DNA sensor that triggers innate immune responses. Here, we show that cells from cGAS-deficient (cGas(-/-)) mice, including fibroblasts, macrophages, and dendritic cells, failed to produce type I interferons and other cytokines in response to DNA transfection or DNA virus infection. cGas(-/-) mice were more susceptible to lethal infection with herpes simplex virus 1 (HSV1) than wild-type mice. We also show that cGAMP is an adjuvant that boosts antigen-specific T cell activation and antibody production in mice.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3863637/" 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/PMC3863637/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Xiao-Dong -- Wu, Jiaxi -- Gao, Daxing -- Wang, Hua -- Sun, Lijun -- Chen, Zhijian J -- 5T32AI070116/AI/NIAID NIH HHS/ -- AI-093967/AI/NIAID NIH HHS/ -- R01 AI093967/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Sep 20;341(6152):1390-4. doi: 10.1126/science.1244040. Epub 2013 Aug 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23989956" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Viral/biosynthesis ; DNA, Viral/genetics/immunology ; Dendritic Cells/immunology ; Fibroblasts/immunology ; Herpes Simplex/*immunology ; *Herpesvirus 1, Human ; Interferon Regulatory Factor-3/genetics ; Interferon-beta/*biosynthesis/genetics ; Lymphocyte Activation ; Macrophages/immunology ; Mice ; Mice, Knockout ; Nucleotidyltransferases/genetics/*immunology ; Signal Transduction ; T-Lymphocytes/immunology ; Transfection
    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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  • 8
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    Structural features for functional selectivity at serotonin receptors (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-23
    Description: Drugs active at G protein-coupled receptors (GPCRs) can differentially modulate either canonical or noncanonical signaling pathways via a phenomenon known as functional selectivity or biased signaling. We report biochemical studies showing that the hallucinogen lysergic acid diethylamide, its precursor ergotamine (ERG), and related ergolines display strong functional selectivity for beta-arrestin signaling at the 5-HT2B 5-hydroxytryptamine (5-HT) receptor, whereas they are relatively unbiased at the 5-HT1B receptor. To investigate the structural basis for biased signaling, we determined the crystal structure of the human 5-HT2B receptor bound to ERG and compared it with the 5-HT1B/ERG structure. Given the relatively poor understanding of GPCR structure and function to date, insight into different GPCR signaling pathways is important to better understand both adverse and favorable therapeutic activities.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3644390/" 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/PMC3644390/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wacker, Daniel -- Wang, Chong -- Katritch, Vsevolod -- Han, Gye Won -- Huang, Xi-Ping -- Vardy, Eyal -- McCorvy, John D -- Jiang, Yi -- Chu, Meihua -- Siu, Fai Yiu -- Liu, Wei -- Xu, H Eric -- Cherezov, Vadim -- Roth, Bryan L -- Stevens, Raymond C -- P50 GM073197/GM/NIGMS NIH HHS/ -- R01 DK071662/DK/NIDDK NIH HHS/ -- R01 MH061887/MH/NIMH NIH HHS/ -- R01 MH61887/MH/NIMH NIH HHS/ -- U19 MH082441/MH/NIMH NIH HHS/ -- U19 MH82441/MH/NIMH NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 3;340(6132):615-9. doi: 10.1126/science.1232808. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519215" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Arrestin/metabolism ; Arrestins/metabolism ; Binding Sites ; Crystallography, X-Ray ; Ergolines/chemistry/metabolism ; Ergotamine/chemistry/*metabolism ; HEK293 Cells ; Humans ; Ligands ; Lysergic Acid Diethylamide/chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Secondary ; Receptor, Serotonin, 5-HT1B/chemistry/*metabolism ; Receptor, Serotonin, 5-HT2B/*chemistry/*metabolism ; Receptors, Serotonin/chemistry/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 9
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    Cancer. New epigenetic drivers of cancers (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elsasser, Simon J -- Allis, C David -- Lewis, Peter W -- New York, N.Y. -- Science. 2011 Mar 4;331(6021):1145-6. doi: 10.1126/science.1203280.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chromatin Biology and Epigenetics, Rockefeller University, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21385704" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/*genetics/metabolism ; Chromatin/metabolism ; Chromatin Assembly and Disassembly/genetics ; DNA Helicases/*genetics/metabolism ; *Epigenesis, Genetic ; *Genes, Tumor Suppressor ; Histones/metabolism ; Humans ; Mutation ; Neuroendocrine Tumors/*genetics/metabolism ; Nuclear Proteins/*genetics/metabolism ; Nucleosomes/metabolism ; Pancreatic Neoplasms/*genetics/metabolism ; Proto-Oncogene Proteins/*genetics/metabolism ; Signal Transduction ; TOR Serine-Threonine Kinases/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    An activating mutation of AKT2 and human hypoglycemia (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-08
    Description: Pathological fasting hypoglycemia in humans is usually explained by excessive circulating insulin or insulin-like molecules or by inborn errors of metabolism impairing liver glucose production. We studied three unrelated children with unexplained, recurrent, and severe fasting hypoglycemia and asymmetrical growth. All were found to carry the same de novo mutation, p.Glu17Lys, in the serine/threonine kinase AKT2, in two cases as heterozygotes and in one case in mosaic form. In heterologous cells, the mutant AKT2 was constitutively recruited to the plasma membrane, leading to insulin-independent activation of downstream signaling. Thus, systemic metabolic disease can result from constitutive, cell-autonomous activation of signaling pathways normally controlled by insulin.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3204221/" 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/PMC3204221/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hussain, K -- Challis, B -- Rocha, N -- Payne, F -- Minic, M -- Thompson, A -- Daly, A -- Scott, C -- Harris, J -- Smillie, B J L -- Savage, D B -- Ramaswami, U -- De Lonlay, P -- O'Rahilly, S -- Barroso, I -- Semple, R K -- 077016/Wellcome Trust/United Kingdom -- 077016/Z/05/Z/Wellcome Trust/United Kingdom -- 078986/Wellcome Trust/United Kingdom -- 078986/Z/06/Z/Wellcome Trust/United Kingdom -- 080952/Wellcome Trust/United Kingdom -- 080952/Z/06/Z/Wellcome Trust/United Kingdom -- 091551/Wellcome Trust/United Kingdom -- 091551/Z/10/Z/Wellcome Trust/United Kingdom -- 095515/Wellcome Trust/United Kingdom -- G0502115/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2011 Oct 28;334(6055):474. doi: 10.1126/science.1210878. Epub 2011 Oct 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Clinical and Molecular Genetics Unit, Developmental Endocrinology Research Group, Institute of Child Health, University College London, London WC1N 1EH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21979934" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution ; Cell Membrane/metabolism ; Cell Nucleus/metabolism ; Child ; Female ; Growth ; HeLa Cells ; Heterozygote ; Humans ; Hypoglycemia/*genetics/*metabolism ; Insulin/blood/metabolism ; Male ; Mosaicism ; *Mutation ; Pedigree ; Protein Interaction Domains and Motifs ; Proto-Oncogene Proteins c-akt/chemistry/*genetics/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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