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  • Male  (8)
  • Nature Publishing Group (NPG)  (8)
  • Wiley
  • American Physical Society (APS)
  • 2010-2014  (8)
  • 1
    Publikationsdatum: 2010-06-11
    Beschreibung: Down's syndrome (DS) is a genetic disorder caused by full or partial trisomy of human chromosome 21 and presents with many clinical phenotypes including a reduced incidence of solid tumours. Recent work with the Ts65Dn model of DS, which has orthologues of about 50% of the genes on chromosome 21 (Hsa21), has indicated that three copies of the ETS2 (ref. 3) or DS candidate region 1 (DSCR1) genes (a previously known suppressor of angiogenesis) is sufficient to inhibit tumour growth. Here we use the Tc1 transchromosomic mouse model of DS to dissect the contribution of extra copies of genes on Hsa21 to tumour angiogenesis. This mouse expresses roughly 81% of Hsa21 genes but not the human DSCR1 region. We transplanted B16F0 and Lewis lung carcinoma tumour cells into Tc1 mice and showed that growth of these tumours was substantially reduced compared with wild-type littermate controls. Furthermore, tumour angiogenesis was significantly repressed in Tc1 mice. In particular, in vitro and in vivo angiogenic responses to vascular endothelial growth factor (VEGF) were inhibited. Examination of the genes on the segment of Hsa21 in Tc1 mice identified putative anti-angiogenic genes (ADAMTS1and ERG) and novel endothelial cell-specific genes, never previously shown to be involved in angiogenesis (JAM-B and PTTG1IP), that, when overexpressed, are responsible for inhibiting angiogenic responses to VEGF. Three copies of these genes within the stromal compartment reduced tumour angiogenesis, explaining the reduced tumour growth in DS. Furthermore, we expect that, in addition to the candidate genes that we show to be involved in the repression of angiogenesis, the Tc1 mouse model of DS will permit the identification of other endothelium-specific anti-angiogenic targets relevant to a broad spectrum of cancer patients.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3479956/" 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/PMC3479956/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reynolds, Louise E -- Watson, Alan R -- Baker, Marianne -- Jones, Tania A -- D'Amico, Gabriela -- Robinson, Stephen D -- Joffre, Carine -- Garrido-Urbani, Sarah -- Rodriguez-Manzaneque, Juan Carlos -- Martino-Echarri, Estefania -- Aurrand-Lions, Michel -- Sheer, Denise -- Dagna-Bricarelli, Franca -- Nizetic, Dean -- McCabe, Christopher J -- Turnell, Andrew S -- Kermorgant, Stephanie -- Imhof, Beat A -- Adams, Ralf -- Fisher, Elizabeth M C -- Tybulewicz, Victor L J -- Hart, Ian R -- Hodivala-Dilke, Kairbaan M -- 080174/Wellcome Trust/United Kingdom -- 12007/Cancer Research UK/United Kingdom -- A12007/Cancer Research UK/United Kingdom -- A3585/Cancer Research UK/United Kingdom -- G0501003/Medical Research Council/United Kingdom -- G0501003(75694)/Medical Research Council/United Kingdom -- G0601056/Medical Research Council/United Kingdom -- G0901609/Medical Research Council/United Kingdom -- MC_U117527252/Medical Research Council/United Kingdom -- U.1175.02.001.00001(60485)/Medical Research Council/United Kingdom -- England -- Nature. 2010 Jun 10;465(7299):813-7. doi: 10.1038/nature09106.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Adhesion and Angiogenesis Laboratory, Barts Institute of Cancer, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London EC1M 6BQ, UK. l.reynolds@qmul.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20535211" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): ADAM Proteins/genetics/metabolism ; Animals ; Carcinoma, Lewis Lung/*blood supply/complications/genetics/pathology ; Carrier Proteins/genetics/metabolism ; Cell Adhesion Molecules/antagonists & inhibitors/genetics/metabolism ; Chromosomes, Mammalian/genetics ; *Disease Models, Animal ; Down Syndrome/complications/*genetics/physiopathology ; Female ; Gene Dosage/*genetics ; Humans ; Immunoglobulins/genetics/metabolism ; Male ; Melanoma, Experimental/*blood supply/complications/genetics/pathology ; Mice ; Neoplasm Transplantation ; Neovascularization, Pathologic/*genetics/pathology ; Oncogene Proteins/genetics/metabolism ; Proto-Oncogene Protein c-ets-2/genetics/metabolism ; Transcription Factors ; Trisomy/genetics ; Vascular Endothelial Growth Factor A/antagonists & ; inhibitors/metabolism/pharmacology ; Vascular Endothelial Growth Factor Receptor-2/metabolism
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2011-11-04
    Beschreibung: Advanced age is the main risk factor for most chronic diseases and functional deficits in humans, but the fundamental mechanisms that drive ageing remain largely unknown, impeding the development of interventions that might delay or prevent age-related disorders and maximize healthy lifespan. Cellular senescence, which halts the proliferation of damaged or dysfunctional cells, is an important mechanism to constrain the malignant progression of tumour cells. Senescent cells accumulate in various tissues and organs with ageing and have been hypothesized to disrupt tissue structure and function because of the components they secrete. However, whether senescent cells are causally implicated in age-related dysfunction and whether their removal is beneficial has remained unknown. To address these fundamental questions, we made use of a biomarker for senescence, p16(Ink4a), to design a novel transgene, INK-ATTAC, for inducible elimination of p16(Ink4a)-positive senescent cells upon administration of a drug. Here we show that in the BubR1 progeroid mouse background, INK-ATTAC removes p16(Ink4a)-positive senescent cells upon drug treatment. In tissues--such as adipose tissue, skeletal muscle and eye--in which p16(Ink4a) contributes to the acquisition of age-related pathologies, life-long removal of p16(Ink4a)-expressing cells delayed onset of these phenotypes. Furthermore, late-life clearance attenuated progression of already established age-related disorders. These data indicate that cellular senescence is causally implicated in generating age-related phenotypes and that removal of senescent cells can prevent or delay tissue dysfunction and extend healthspan.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3468323/" 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/PMC3468323/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Darren J -- Wijshake, Tobias -- Tchkonia, Tamar -- LeBrasseur, Nathan K -- Childs, Bennett G -- van de Sluis, Bart -- Kirkland, James L -- van Deursen, Jan M -- AG13925/AG/NIA NIH HHS/ -- CA96985/CA/NCI NIH HHS/ -- P30 DK050456/DK/NIDDK NIH HHS/ -- R01 AG013925/AG/NIA NIH HHS/ -- R01 AG013925-14/AG/NIA NIH HHS/ -- R01 CA096985/CA/NCI NIH HHS/ -- R01 CA096985-10/CA/NCI NIH HHS/ -- England -- Nature. 2011 Nov 2;479(7372):232-6. doi: 10.1038/nature10600.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatric and Adolescent Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22048312" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adipose Tissue/cytology/drug effects/pathology ; Aging/drug effects/*physiology ; Animals ; Bone Marrow Cells/cytology/drug effects ; Cell Aging/drug effects/*physiology ; Cell Count ; Cell Cycle Proteins ; Cells, Cultured ; Cyclin-Dependent Kinase Inhibitor p16/*metabolism ; Eye/cytology/drug effects/pathology ; Female ; Gene Expression ; Genotype ; Longevity/drug effects/physiology ; Male ; Mice ; Mice, Transgenic ; Muscle, Skeletal/cytology/drug effects/pathology ; Phenotype ; Progeria/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Tacrolimus/analogs & derivatives/pharmacology ; Time Factors ; Weaning
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Publikationsdatum: 2011-04-22
    Beschreibung: Genetic methods of manipulating or eradicating disease vector populations have long been discussed as an attractive alternative to existing control measures because of their potential advantages in terms of effectiveness and species specificity. The development of genetically engineered malaria-resistant mosquitoes has shown, as a proof of principle, the possibility of targeting the mosquito's ability to serve as a disease vector. The translation of these achievements into control measures requires an effective technology to spread a genetic modification from laboratory mosquitoes to field populations. We have suggested previously that homing endonuclease genes (HEGs), a class of simple selfish genetic elements, could be exploited for this purpose. Here we demonstrate that a synthetic genetic element, consisting of mosquito regulatory regions and the homing endonuclease gene I-SceI, can substantially increase its transmission to the progeny in transgenic mosquitoes of the human malaria vector Anopheles gambiae. We show that the I-SceI element is able to invade receptive mosquito cage populations rapidly, validating mathematical models for the transmission dynamics of HEGs. Molecular analyses confirm that expression of I-SceI in the male germline induces high rates of site-specific chromosomal cleavage and gene conversion, which results in the gain of the I-SceI gene, and underlies the observed genetic drive. These findings demonstrate a new mechanism by which genetic control measures can be implemented. Our results also show in principle how sequence-specific genetic drive elements like HEGs could be used to take the step from the genetic engineering of individuals to the genetic engineering of populations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3093433/" 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/PMC3093433/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Windbichler, Nikolai -- Menichelli, Miriam -- Papathanos, Philippos Aris -- Thyme, Summer B -- Li, Hui -- Ulge, Umut Y -- Hovde, Blake T -- Baker, David -- Monnat, Raymond J Jr -- Burt, Austin -- Crisanti, Andrea -- CA133831/CA/NCI NIH HHS/ -- RL1 CA133831/CA/NCI NIH HHS/ -- RL1 CA133831-01/CA/NCI NIH HHS/ -- RL1 CA133831-02/CA/NCI NIH HHS/ -- RL1 CA133831-03/CA/NCI NIH HHS/ -- RL1 CA133831-04/CA/NCI NIH HHS/ -- RL1 CA133831-05/CA/NCI NIH HHS/ -- RL1 GM084433/GM/NIGMS NIH HHS/ -- RL1 GM084433-01/GM/NIGMS NIH HHS/ -- RL1 GM084433-02/GM/NIGMS NIH HHS/ -- RL1 GM084433-03/GM/NIGMS NIH HHS/ -- RL1 GM084433-04/GM/NIGMS NIH HHS/ -- RL1 GM084433-05/GM/NIGMS NIH HHS/ -- T32 CA080416/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 May 12;473(7346):212-5. doi: 10.1038/nature09937. Epub 2011 Apr 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Imperial College London, Department of Life Sciences, South Kensington Campus, London, SW7 2AZ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21508956" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Genetically Modified ; Anopheles gambiae/*genetics ; Deoxyribonucleases, Type II Site-Specific/genetics ; Female ; Genes, Reporter/genetics ; *Genetic Engineering ; Genotype ; Insect Vectors/*genetics ; Male ; Molecular Sequence Data ; Mosquito Control/*methods ; Saccharomyces cerevisiae Proteins/genetics
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Unbekannt
    Nature Publishing Group (NPG)
    Publikationsdatum: 2012-08-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Monya -- England -- Nature. 2012 Aug 30;488(7413):568. doi: 10.1038/488568a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22932355" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Circumcision, Male/economics/ethnology/*statistics & numerical data ; Cultural Characteristics ; Humans ; Internationality ; Male ; Physicians ; Sexually Transmitted Diseases/*epidemiology/*prevention & control ; United States/epidemiology
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Publikationsdatum: 2014-04-11
    Beschreibung: The mechanisms by which mucosal homeostasis is maintained are of central importance to inflammatory bowel disease. Critical to these processes is the intestinal epithelial cell (IEC), which regulates immune responses at the interface between the commensal microbiota and the host. CD1d presents self and microbial lipid antigens to natural killer T (NKT) cells, which are involved in the pathogenesis of colitis in animal models and human inflammatory bowel disease. As CD1d crosslinking on model IECs results in the production of the important regulatory cytokine interleukin (IL)-10 (ref. 9), decreased epithelial CD1d expression--as observed in inflammatory bowel disease--may contribute substantially to intestinal inflammation. Here we show in mice that whereas bone-marrow-derived CD1d signals contribute to NKT-cell-mediated intestinal inflammation, engagement of epithelial CD1d elicits protective effects through the activation of STAT3 and STAT3-dependent transcription of IL-10, heat shock protein 110 (HSP110; also known as HSP105), and CD1d itself. All of these epithelial elements are critically involved in controlling CD1d-mediated intestinal inflammation. This is demonstrated by severe NKT-cell-mediated colitis upon IEC-specific deletion of IL-10, CD1d, and its critical regulator microsomal triglyceride transfer protein (MTP), as well as deletion of HSP110 in the radioresistant compartment. Our studies thus uncover a novel pathway of IEC-dependent regulation of mucosal homeostasis and highlight a critical role of IL-10 in the intestinal epithelium, with broad implications for diseases such as inflammatory bowel disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4132962/" 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/PMC4132962/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olszak, Torsten -- Neves, Joana F -- Dowds, C Marie -- Baker, Kristi -- Glickman, Jonathan -- Davidson, Nicholas O -- Lin, Chyuan-Sheng -- Jobin, Christian -- Brand, Stephan -- Sotlar, Karl -- Wada, Koichiro -- Katayama, Kazufumi -- Nakajima, Atsushi -- Mizuguchi, Hiroyuki -- Kawasaki, Kunito -- Nagata, Kazuhiro -- Muller, Werner -- Snapper, Scott B -- Schreiber, Stefan -- Kaser, Arthur -- Zeissig, Sebastian -- Blumberg, Richard S -- 260961/European Research Council/International -- AI50950/AI/NIAID NIH HHS/ -- DK0034854/DK/NIDDK NIH HHS/ -- DK034854/DK/NIDDK NIH HHS/ -- DK044319/DK/NIDDK NIH HHS/ -- DK051362/DK/NIDDK NIH HHS/ -- DK053056/DK/NIDDK NIH HHS/ -- DK088199/DK/NIDDK NIH HHS/ -- DK56260/DK/NIDDK NIH HHS/ -- HL38180/HL/NHLBI NIH HHS/ -- HL59561/HL/NHLBI NIH HHS/ -- P30 DK034854/DK/NIDDK NIH HHS/ -- P30 DK052574/DK/NIDDK NIH HHS/ -- P30CA013696/CA/NCI NIH HHS/ -- P30DK52574/DK/NIDDK NIH HHS/ -- R01 DK044319/DK/NIDDK NIH HHS/ -- England -- Nature. 2014 May 22;509(7501):497-502. doi: 10.1038/nature13150. Epub 2014 Apr 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA [2]. ; 1] Department of Internal Medicine I, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany [2]. ; Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. ; GI Pathology, Miraca Life Sciences, Newton, Massachusetts 02464, USA. ; Division of Gastroenterology, Washington University School of Medicine, St Louis, Missouri 63110, USA. ; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, New York 10032, USA. ; Department of Medicine, Department of Infectious Diseases & Pathology, University of Florida, Gainesville, Florida 32611, USA. ; Department of Medicine II-Grosshadern, Ludwig Maximilians University, Munich 81377, Germany. ; Institute of Pathology, Ludwig Maximilians University, Munich 80337, Germany. ; Department of Pharmacology, Graduate School of Dentistry, Osaka University, Osaka 565-0871, Japan. ; Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0027, Japan. ; Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan. ; Department of Molecular Biosciences, Faculty of Life Sciences, Kyoto Sangyo University, Motoyama, Kamigamo, Kita-ku, Kyoto 603-8555, Japan. ; Faculty of Life Sciences, University of Manchester, Manchester M13 9PL, UK. ; 1] Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA [2] Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Children's Hospital Boston, Boston, Massachusetts 02115, USA. ; Department of Internal Medicine I, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany. ; Division of Gastroenterology, Addenbrooke Hospital, University of Cambridge, Cambridge CB2 0QQ, UK. ; 1] Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA [2] Department of Internal Medicine I, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany [3].〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24717441" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, CD1d/*immunology ; Carrier Proteins/metabolism ; Colitis/immunology/pathology ; Disease Models, Animal ; Epithelial Cells/*immunology/metabolism ; Female ; HSP110 Heat-Shock Proteins/genetics/metabolism ; Humans ; Immunity, Mucosal/*immunology ; Inflammation/immunology/pathology ; Inflammatory Bowel Diseases/immunology/pathology ; Interleukin-10/genetics/*immunology ; Intestinal Mucosa/*cytology/*immunology ; Male ; Mice ; Natural Killer T-Cells/immunology/metabolism ; Oxazolone ; STAT3 Transcription Factor/metabolism
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Publikationsdatum: 2014-02-07
    Beschreibung: Vaccines prevent infectious disease largely by inducing protective neutralizing antibodies against vulnerable epitopes. Several major pathogens have resisted traditional vaccine development, although vulnerable epitopes targeted by neutralizing antibodies have been identified for several such cases. Hence, new vaccine design methods to induce epitope-specific neutralizing antibodies are needed. Here we show, with a neutralization epitope from respiratory syncytial virus, that computational protein design can generate small, thermally and conformationally stable protein scaffolds that accurately mimic the viral epitope structure and induce potent neutralizing antibodies. These scaffolds represent promising leads for the research and development of a human respiratory syncytial virus vaccine needed to protect infants, young children and the elderly. More generally, the results provide proof of principle for epitope-focused and scaffold-based vaccine design, and encourage the evaluation and further development of these strategies for a variety of other vaccine targets, including antigenically highly variable pathogens such as human immunodeficiency virus and influenza.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4260937/" 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/PMC4260937/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Correia, Bruno E -- Bates, John T -- Loomis, Rebecca J -- Baneyx, Gretchen -- Carrico, Chris -- Jardine, Joseph G -- Rupert, Peter -- Correnti, Colin -- Kalyuzhniy, Oleksandr -- Vittal, Vinayak -- Connell, Mary J -- Stevens, Eric -- Schroeter, Alexandria -- Chen, Man -- Macpherson, Skye -- Serra, Andreia M -- Adachi, Yumiko -- Holmes, Margaret A -- Li, Yuxing -- Klevit, Rachel E -- Graham, Barney S -- Wyatt, Richard T -- Baker, David -- Strong, Roland K -- Crowe, James E Jr -- Johnson, Philip R -- Schief, William R -- 1R01AI102766-01A1/AI/NIAID NIH HHS/ -- 1UM1AI100663/AI/NIAID NIH HHS/ -- 2T32GM007270/GM/NIGMS NIH HHS/ -- 5R21AI088554/AI/NIAID NIH HHS/ -- P01 AI094419/AI/NIAID NIH HHS/ -- P01AI094419/AI/NIAID NIH HHS/ -- P30 AI036214/AI/NIAID NIH HHS/ -- P30 AI045008/AI/NIAID NIH HHS/ -- P30AI36214/AI/NIAID NIH HHS/ -- R01 AI102766/AI/NIAID NIH HHS/ -- R21 AI088554/AI/NIAID NIH HHS/ -- T32 CA080416/CA/NCI NIH HHS/ -- T32 GM007270/GM/NIGMS NIH HHS/ -- T32CA080416/CA/NCI NIH HHS/ -- U54 AI 005714/AI/NIAID NIH HHS/ -- U54 AI057141/AI/NIAID NIH HHS/ -- UM1 AI100663/AI/NIAID NIH HHS/ -- Intramural NIH HHS/ -- England -- Nature. 2014 Mar 13;507(7491):201-6. doi: 10.1038/nature12966. Epub 2014 Feb 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA [2] PhD Program in Computational Biology, Instituto Gulbenkian Ciencia and Instituto de Tecnologia Quimica e Biologica, Universidade Nova de Lisboa, Oeiras 2780-157, Portugal [3] Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California 92037, USA. ; The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA. ; The Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania 19104, USA. ; Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA. ; Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109-1024, USA. ; 1] Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA [2] Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California 92037, USA [3] IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, California 92037, USA [4] Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, California 92037, USA. ; 1] Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA [2] IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, California 92037, USA [3] Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, California 92037, USA. ; Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA. ; 1] Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109-1024, USA [2]. ; 1] Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California 92037, USA [2] IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, California 92037, USA [3] Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, California 92037, USA. ; 1] The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA [2] Department of Pathology, Microbiology and Immunology, Vanderbilt Medical Center, Nashville, Tennessee 37232, USA [3] Department of Pediatrics, Vanderbilt Medical Center, Nashville, Tennessee 37232, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24499818" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Motifs ; Animals ; Antibodies, Monoclonal/analysis/immunology ; Antibodies, Neutralizing/analysis/immunology ; Antibodies, Viral/analysis/immunology ; Antigens, Viral/chemistry/immunology ; Crystallography, X-Ray ; *Drug Design ; Enzyme-Linked Immunosorbent Assay ; Epitopes/*chemistry/*immunology ; Macaca mulatta/immunology ; Male ; Mice ; Mice, Inbred BALB C ; Models, Molecular ; Neutralization Tests ; Protein Conformation ; *Protein Stability ; Respiratory Syncytial Virus Vaccines/*chemistry/*immunology ; Respiratory Syncytial Viruses/chemistry/immunology
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Publikationsdatum: 2011-01-29
    Beschreibung: Imprinted genes, defined by their preferential expression of a single parental allele, represent a subset of the mammalian genome and often have key roles in embryonic development, but also postnatal functions including energy homeostasis and behaviour. When the two parental alleles are unequally represented within a social group (when there is sex bias in dispersal and/or variance in reproductive success), imprinted genes may evolve to modulate social behaviour, although so far no such instance is known. Predominantly expressed from the maternal allele during embryogenesis, Grb10 encodes an intracellular adaptor protein that can interact with several receptor tyrosine kinases and downstream signalling molecules. Here we demonstrate that within the brain Grb10 is expressed from the paternal allele from fetal life into adulthood and that ablation of this expression engenders increased social dominance specifically among other aspects of social behaviour, a finding supported by the observed increase in allogrooming by paternal Grb10-deficient animals. Grb10 is, therefore, the first example of an imprinted gene that regulates social behaviour. It is also currently alone in exhibiting imprinted expression from each of the parental alleles in a tissue-specific manner, as loss of the peripherally expressed maternal allele leads to significant fetal and placental overgrowth. Thus Grb10 is, so far, a unique imprinted gene, able to influence distinct physiological processes, fetal growth and adult behaviour, owing to actions of the two parental alleles in different tissues.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3031026/" 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/PMC3031026/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garfield, Alastair S -- Cowley, Michael -- Smith, Florentia M -- Moorwood, Kim -- Stewart-Cox, Joanne E -- Gilroy, Kerry -- Baker, Sian -- Xia, Jing -- Dalley, Jeffrey W -- Hurst, Laurence D -- Wilkinson, Lawrence S -- Isles, Anthony R -- Ward, Andrew -- 093875/Wellcome Trust/United Kingdom -- G0300415/Medical Research Council/United Kingdom -- G0300415(66812)/Medical Research Council/United Kingdom -- G11786/Biotechnology and Biological Sciences Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- England -- Nature. 2011 Jan 27;469(7331):534-8. doi: 10.1038/nature09651.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology & Biochemistry and Centre for Regenerative Medicine, University of Bath, Claverton Down, Bath BA2 7AY, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21270893" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Alleles ; Animals ; Behavior, Animal/*physiology ; Central Nervous System/embryology ; Female ; GRB10 Adaptor Protein/*genetics/*metabolism ; Gene Expression Regulation, Developmental ; Genomic Imprinting/*genetics ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mutation ; Social Dominance
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Publikationsdatum: 2014-02-28
    Beschreibung: The life cycles of many parasites involve transitions between disparate host species, requiring these parasites to go through multiple developmental stages adapted to each of these specialized niches. Transmission of malaria parasites (Plasmodium spp.) from humans to the mosquito vector requires differentiation from asexual stages replicating within red blood cells into non-dividing male and female gametocytes. Although gametocytes were first described in 1880, our understanding of the molecular mechanisms involved in commitment to gametocyte formation is extremely limited, and disrupting this critical developmental transition remains a long-standing goal. Here we show that expression levels of the DNA-binding protein PfAP2-G correlate strongly with levels of gametocyte formation. Using independent forward and reverse genetics approaches, we demonstrate that PfAP2-G function is essential for parasite sexual differentiation. By combining genome-wide PfAP2-G cognate motif occurrence with global transcriptional changes resulting from PfAP2-G ablation, we identify early gametocyte genes as probable targets of PfAP2-G and show that their regulation by PfAP2-G is critical for their wild-type level expression. In the asexual blood-stage parasites pfap2-g appears to be among a set of epigenetically silenced loci prone to spontaneous activation. Stochastic activation presents a simple mechanism for a low baseline of gametocyte production. Overall, these findings identify PfAP2-G as a master regulator of sexual-stage development in malaria parasites and mark the first discovery of a transcriptional switch controlling a differentiation decision in protozoan parasites.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4040541/" 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/PMC4040541/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kafsack, Bjorn F C -- Rovira-Graells, Nuria -- Clark, Taane G -- Bancells, Cristina -- Crowley, Valerie M -- Campino, Susana G -- Williams, April E -- Drought, Laura G -- Kwiatkowski, Dominic P -- Baker, David A -- Cortes, Alfred -- Llinas, Manuel -- 090532/Wellcome Trust/United Kingdom -- 090532/Z/09/Z/Wellcome Trust/United Kingdom -- 090770/Wellcome Trust/United Kingdom -- 094752/Wellcome Trust/United Kingdom -- 098051/Wellcome Trust/United Kingdom -- G0600230/Medical Research Council/United Kingdom -- G0600718/Medical Research Council/United Kingdom -- J005398/Medical Research Council/United Kingdom -- P50GM071508/GM/NIGMS NIH HHS/ -- R01 AI076276/AI/NIAID NIH HHS/ -- T32 GM007388/GM/NIGMS NIH HHS/ -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Howard Hughes Medical Institute/ -- England -- Nature. 2014 Mar 13;507(7491):248-52. doi: 10.1038/nature12920. Epub 2014 Feb 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey 08544, USA [2] Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA (B.F.C.K.); Department of Molecular Biology and Center for Infectious Disease Dynamics, The Pennsylvania State University, State College, Pennsylvania 16802, USA (V.M.C., M.L.). ; 1] Barcelona Centre for International Health Research (CRESIB, Hospital Clinic-Universitat de Barcelona), Barcelona, 08036 Catalonia, Spain [2] Institute for Research in Biomedicine (IRB), Barcelona, 08028 Catalonia, Spain. ; 1] Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK [2] Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK. ; Barcelona Centre for International Health Research (CRESIB, Hospital Clinic-Universitat de Barcelona), Barcelona, 08036 Catalonia, Spain. ; 1] Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey 08544, USA [2] Institute for Research in Biomedicine (IRB), Barcelona, 08028 Catalonia, Spain [3] Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA (B.F.C.K.); Department of Molecular Biology and Center for Infectious Disease Dynamics, The Pennsylvania State University, State College, Pennsylvania 16802, USA (V.M.C., M.L.). ; Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton CB10 1SA, UK. ; Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA. ; Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK. ; 1] Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton CB10 1SA, UK [2] Wellcome Trust Sanger Centre for Human Genetics, Oxford OX3 7BN, UK. ; 1] Barcelona Centre for International Health Research (CRESIB, Hospital Clinic-Universitat de Barcelona), Barcelona, 08036 Catalonia, Spain [2] Institute for Research in Biomedicine (IRB), Barcelona, 08028 Catalonia, Spain [3] Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, 08010 Catalonia, Spain. ; 1] Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey 08544, USA [2] Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA [3] Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA (B.F.C.K.); Department of Molecular Biology and Center for Infectious Disease Dynamics, The Pennsylvania State University, State College, Pennsylvania 16802, USA (V.M.C., M.L.).〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24572369" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; DNA-Binding Proteins/deficiency/genetics/metabolism ; Female ; Gene Expression Regulation/*genetics ; Gene Silencing ; Genes, Protozoan/genetics ; Genome, Protozoan/genetics ; Germ Cells/cytology/*growth & development/metabolism ; Malaria/*parasitology ; Male ; Parasites/cytology/genetics/*physiology ; Plasmodium falciparum/cytology/*genetics/physiology ; Protozoan Proteins/genetics/metabolism ; Reproduction, Asexual ; Sex Differentiation/genetics ; Sexual Development/*genetics ; Transcription, Genetic/*genetics
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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