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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-06-27
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taubes, G -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):1993.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9221506" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; DNA, Recombinant ; Diagnostic Imaging/*methods ; *Gene Expression Regulation ; Genetic Therapy ; HIV/physiology ; HIV Infections/virology ; Luciferases/*genetics ; Luminescence ; Mice ; Mice, Transgenic ; Salmonella Infections, Animal/drug therapy/microbiology ; Virus Replication
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-03-07
    Beschreibung: The DED1 gene, which encodes a putative RNA helicase, has been implicated in nuclear pre-messenger RNA splicing in the yeast Saccharomyces cerevisiae. It is shown here by genetic and biochemical analysis that translation, rather than splicing, is severely impaired in two newly isolated ded1 conditional mutants. Preliminary evidence suggests that the protein Ded1p may be required for the initiation step of translation, as is the distinct DEAD-box protein, eukaryotic initiation factor 4A (eIF4A). The DED1 gene could be functionally replaced by a mouse homolog, PL10, which suggests that the function of Ded1p in translation is evolutionarily conserved.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chuang, R Y -- Weaver, P L -- Liu, Z -- Chang, T H -- GM48752/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 7;275(5305):1468-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular, Cellular, and Developmental Biology Program, Ohio State University, Columbus, OH 43210, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9045610" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cytoplasm/metabolism ; DEAD-box RNA Helicases ; Eukaryotic Initiation Factor-4A ; Genes, Fungal ; Mice ; Mutation ; Peptide Initiation Factors/genetics/metabolism ; Phenotype ; *Protein Biosynthesis ; RNA Helicases ; RNA Nucleotidyltransferases/genetics/*metabolism ; RNA Splicing ; RNA, Fungal/*genetics ; RNA, Messenger/*genetics ; Recombinant Fusion Proteins/metabolism ; Saccharomyces cerevisiae/enzymology/*genetics ; *Saccharomyces cerevisiae Proteins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-11-14
    Beschreibung: Genetic testing for cancer susceptibility is already part of the clinical management of families with some of the well-defined (but uncommon) inherited cancer syndromes. In cases where the risks associated with a predisposing mutation are less certain, or where there is no clearly effective intervention to offer those with a positive result, its use is more controversial. Careful evaluation of costs and benefits, and of the efficacy of interventions in those found to be at risk, is essential and is only just beginning. An immediate challenge is to ensure that both health professionals and the public understand clearly the issues involved.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ponder, B -- New York, N.Y. -- Science. 1997 Nov 7;278(5340):1050-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncology, University of Cambridge, Addenbrooke's Hospital, Box 238, Level 3 Lab Block, Hills Road, Cambridge CB2 2QQ, UK. bajp@mole.bio.cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9353178" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Confidentiality ; Cost-Benefit Analysis ; Female ; Genetic Counseling ; Genetic Predisposition to Disease ; Genetic Services ; *Genetic Testing ; Genetic Variation ; Humans ; Insurance, Health ; Insurance, Life ; Male ; Mutation ; Neoplasms/*diagnosis/*genetics ; Resource Allocation ; Risk Assessment ; Risk Factors ; Uncertainty
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-12-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tiedemann, R -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1550-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411772" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Elephants/*anatomy & histology/*physiology ; Female ; Incisor/anatomy & histology ; India ; Male ; Models, Biological ; Models, Statistical ; *Sexual Behavior, Animal ; Sri Lanka
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Publikationsdatum: 1997-07-04
    Beschreibung: Angiogenesis is thought to depend on a precise balance of positive and negative regulation. Angiopoietin-1 (Ang1) is an angiogenic factor that signals through the endothelial cell-specific Tie2 receptor tyrosine kinase. Like vascular endothelial growth factor, Ang1 is essential for normal vascular development in the mouse. An Ang1 relative, termed angiopoietin-2 (Ang2), was identified by homology screening and shown to be a naturally occurring antagonist for Ang1 and Tie2. Transgenic overexpression of Ang2 disrupts blood vessel formation in the mouse embryo. In adult mice and humans, Ang2 is expressed only at sites of vascular remodeling. Natural antagonists for vertebrate receptor tyrosine kinases are atypical; thus, the discovery of a negative regulator acting on Tie2 emphasizes the need for exquisite regulation of this angiogenic receptor system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maisonpierre, P C -- Suri, C -- Jones, P F -- Bartunkova, S -- Wiegand, S J -- Radziejewski, C -- Compton, D -- McClain, J -- Aldrich, T H -- Papadopoulos, N -- Daly, T J -- Davis, S -- Sato, T N -- Yancopoulos, G D -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):55-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204896" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Angiopoietin-1 ; Angiopoietin-2 ; Animals ; Blood Vessels/embryology/*metabolism ; Cells, Cultured ; Cloning, Molecular ; Embryo, Mammalian/metabolism ; Endothelial Growth Factors/genetics/metabolism ; Endothelium, Vascular/*cytology/metabolism ; Female ; Humans ; Ligands ; Lymphokines/genetics/metabolism ; Membrane Glycoproteins/antagonists & inhibitors/metabolism ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; *Neovascularization, Physiologic ; Phosphorylation ; Proteins/chemistry/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptor Protein-Tyrosine Kinases/*antagonists & inhibitors/metabolism ; Receptor, TIE-2 ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 6
    Publikationsdatum: 1997-09-26
    Beschreibung: To determine which proteinases are responsible for the lung destruction characteristic of pulmonary emphysema, macrophage elastase-deficient (MME-/-) mice were subjected to cigarette smoke. In contrast to wild-type mice, MME-/- mice did not have increased numbers of macrophages in their lungs and did not develop emphysema in response to long-term exposure to cigarette smoke. Smoke-exposed MME-/- mice that received monthly intratracheal instillations of monocyte chemoattractant protein-1 showed accumulation of alveolar macrophages but did not develop air space enlargement. Thus, macrophage elastase is probably sufficient for the development of emphysema that results from chronic inhalation of cigarette smoke.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hautamaki, R D -- Kobayashi, D K -- Senior, R M -- Shapiro, S D -- New York, N.Y. -- Science. 1997 Sep 26;277(5334):2002-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, Washington University School of Medicine at Barnes-Jewish Hospital, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9302297" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Count ; Chemokine CCL2/pharmacology ; Gene Targeting ; Lung/pathology ; Macrophages, Alveolar/*enzymology/physiology ; Matrix Metalloproteinase 12 ; Metalloendopeptidases/genetics/*metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Neutrophils ; Plants, Toxic ; Pulmonary Alveoli/pathology ; Pulmonary Emphysema/enzymology/*etiology/pathology ; Smoke/adverse effects ; Smoking/*adverse effects ; Tobacco
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Publikationsdatum: 1997-08-15
    Beschreibung: Recent evidence demonstrating multiple regions of human cerebral cortex activated by pain has prompted speculation about their individual contributions to this complex experience. To differentiate cortical areas involved in pain affect, hypnotic suggestions were used to alter selectively the unpleasantness of noxious stimuli, without changing the perceived intensity. Positron emission tomography revealed significant changes in pain-evoked activity within anterior cingulate cortex, consistent with the encoding of perceived unpleasantness, whereas primary somatosensory cortex activation was unaltered. These findings provide direct experimental evidence in humans linking frontal-lobe limbic activity with pain affect, as originally suggested by early clinical lesion studies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rainville, P -- Duncan, G H -- Price, D D -- Carrier, B -- Bushnell, M C -- New York, N.Y. -- Science. 1997 Aug 15;277(5328):968-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉D-epartement de Psychologie and Centre de Recherche en Sciences Neurologiques, Universite de Montreal, Montreal, Quebec, Canada H3C 3J7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9252330" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Affect/*physiology ; *Brain Mapping ; Female ; Frontal Lobe/blood supply/*physiology/radionuclide imaging ; Gyrus Cinguli/blood supply/*physiology/radionuclide imaging ; Humans ; Hypnosis ; Male ; Middle Aged ; Pain/*physiopathology/*psychology ; Pain Measurement ; Regional Blood Flow ; Regression Analysis ; Somatosensory Cortex/blood supply/*physiology/radionuclide imaging ; Thermosensing ; Tomography, Emission-Computed
    Print ISSN: 0036-8075
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-09-26
    Beschreibung: A selection strategy was devised to identify bacterial genes preferentially expressed when a bacterium associates with its host cell. Fourteen Salmonella typhimurium genes, which were under the control of at least four independent regulatory circuits, were identified to be selectively induced in host macrophages. Four genes encode virulence factors, including a component of a type III secretory apparatus. This selection methodology should be generally applicable to the identification of genes from pathogenic organisms that are induced upon association with host cells or tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Valdivia, R H -- Falkow, S -- AI26195/AI/NIAID NIH HHS/ -- DK38707/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1997 Sep 26;277(5334):2007-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA. valdivia@cmgm.stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9302299" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Bacterial Proteins/genetics ; Cell Line ; Cloning, Molecular ; Female ; Flow Cytometry ; Fluorescence ; *Gene Expression Regulation, Bacterial ; Green Fluorescent Proteins ; HeLa Cells ; Humans ; Luminescent Proteins/genetics ; Macrophages/*microbiology ; Mice ; Mice, Inbred BALB C ; Microscopy, Fluorescence ; Molecular Sequence Data ; Open Reading Frames ; Promoter Regions, Genetic ; Recombinant Fusion Proteins ; Salmonella Infections, Animal/microbiology ; Salmonella typhimurium/*genetics/isolation & purification/*pathogenicity ; Spleen/microbiology ; Transcription Factors/genetics ; Virulence/genetics
    Print ISSN: 0036-8075
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 9
    Publikationsdatum: 1997-01-17
    Beschreibung: Familial combined hyperlipidemia (FCHL) is a common inherited lipid disorder, affecting 1 to 2 percent of the population in Westernized societies. Individuals with FCHL have large quantities of very low density lipoprotein (VLDL) and low density lipoprotein (LDL) and develop premature coronary heart disease. A mouse model displaying some of the features of FCHL was created by crossing mice carrying the human apolipoprotein C-III (APOC3) transgene with mice deficient in the LDL receptor. A synergistic interaction between the apolipoprotein C-III and the LDL receptor defects produced large quantities of VLDL and LDL and enhanced the development of atherosclerosis. This mouse model may provide clues to the origin of human FCHL.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Masucci-Magoulas, L -- Goldberg, I J -- Bisgaier, C L -- Serajuddin, H -- Francone, O L -- Breslow, J L -- Tall, A R -- HL 21006/HL/NHLBI NIH HHS/ -- HL 54591/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1997 Jan 17;275(5298):391-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Columbia University, 630 West 168 Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8994037" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Apolipoprotein C-III ; Apolipoproteins B/blood ; Apolipoproteins C/*genetics ; Apolipoproteins E/blood ; Arteriosclerosis/etiology ; Carrier Proteins/genetics ; Cholesterol/blood ; Cholesterol Ester Transfer Proteins ; Cholesterol, HDL/blood ; Cholesterol, LDL/blood ; Cholesterol, VLDL/blood ; Diet ; *Disease Models, Animal ; Disease Susceptibility ; Female ; *Glycoproteins ; Humans ; *Hyperlipidemia, Familial Combined/blood/genetics ; Hyperlipoproteinemia Type IV/genetics ; Lipoproteins/blood ; Lipoproteins, VLDL/blood ; Male ; Mice ; Mice, Inbred C57BL ; *Mice, Transgenic ; Receptors, LDL/*genetics/metabolism ; Transgenes ; Triglycerides/blood
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 10
    Publikationsdatum: 1997-02-28
    Beschreibung: The small guanosine triphosphatase (GTPase) Rho is implicated in the formation of stress fibers and focal adhesions in fibroblasts stimulated by extracellular signals such as lysophosphatidic acid (LPA). Rho-kinase is activated by Rho and may mediate some biological effects of Rho. Microinjection of the catalytic domain of Rho-kinase into serum-starved Swiss 3T3 cells induced the formation of stress fibers and focal adhesions, whereas microinjection of the inactive catalytic domain, the Rho-binding domain, or the pleckstrin-homology domain inhibited the LPA-induced formation of stress fibers and focal adhesions. Thus, Rho-kinase appears to mediate signals from Rho and to induce the formation of stress fibers and focal adhesions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Amano, M -- Chihara, K -- Kimura, K -- Fukata, Y -- Nakamura, N -- Matsuura, Y -- Kaibuchi, K -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1308-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Signal Transduction, Nara Institute of Science and Technology, Ikoma 630-01, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9036856" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 3T3 Cells ; Actins/*metabolism ; Adenosine Triphosphate/metabolism ; Animals ; Binding Sites ; *Cell Adhesion ; Cell Line ; DNA, Complementary/genetics ; Enzyme Inhibitors/pharmacology ; GTP Phosphohydrolases/metabolism ; Intracellular Signaling Peptides and Proteins ; Lysophospholipids/pharmacology ; Mice ; Mutation ; Protein-Serine-Threonine Kinases/antagonists & inhibitors/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Staurosporine/pharmacology ; rho-Associated Kinases
    Print ISSN: 0036-8075
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 11
    Publikationsdatum: 1997-02-14
    Beschreibung: For the past decade the immune system has been exploited as a rich source of de novo catalysts. Catalytic antibodies have been shown to have chemoselectivity, enantioselectivity, large rate accelerations, and even an ability to reroute chemical reactions. In many instances catalysts have been made for reactions for which there are no known natural or man-made enzymes. Yet, the full power of this combinatorial system can only be exploited if there was a system that allows for the direct selection of a particular function. A method that allows for the direct chemical selection for catalysis from antibody libraries was so devised, whereby the positive aspects of hybridoma technology were preserved and re-formatted in the filamentous phage system to allow direct selection of catalysis. This methodology is based on a purely chemical selection process, making it more general than biologically based selection systems because it is not limited to reaction products that perturb cellular machinery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Janda, K D -- Lo, L C -- Lo, C H -- Sim, M M -- Wang, R -- Wong, C H -- Lerner, R A -- GM-43858/GM/NIGMS NIH HHS/ -- GM-44154/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Feb 14;275(5302):945-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Scripps Research Institute, Department of Chemistry, 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/9020070" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Antibodies, Catalytic/genetics/metabolism ; Catalysis ; Cloning, Molecular ; Coliphages ; Dithiothreitol ; Enzyme-Linked Immunosorbent Assay ; Escherichia coli/genetics/metabolism ; Galactosides/metabolism ; Haptens ; Hybridomas ; Immunoglobulin Fab Fragments/genetics/metabolism ; Indoles/metabolism ; Isopropyl Thiogalactoside/metabolism ; Mice ; Nitrophenylgalactosides/metabolism ; *Peptide Library ; Polymerase Chain Reaction ; Serum Albumin, Bovine ; Transformation, Bacterial ; beta-Galactosidase/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-03-28
    Beschreibung: Neuroendocrine hormones of the hypothalamus-pituitary-thyroid axis can exert positive or negative immunoregulatory effects on intestinal lymphocytes. Small intestine epithelial cells were found to express receptors for thyrotropin-releasing hormone (TRH) and to be a primary source of intestine-derived thyroid-stimulating hormone (TSH). The gene for the TSH receptor (TSH-R) was expressed in intestinal T cells but not in epithelial cells, which suggested a hormone-mediated link between lymphoid and nonhematopoietic components of the intestine. Because mice with congenitally mutant TSH-R (hyt/hyt mice) have a selectively impaired intestinal T cell repertoire, TSH may be a key immunoregulatory mediator in the intestine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, J -- Whetsell, M -- Klein, J R -- DK35566/DK/NIDDK NIH HHS/ -- R01 DK035566/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1937-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Science and Mervin Bovaird Center for Studies in Molecular Biology and Biotechnology, University of Tulsa, Tulsa, OK 74104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072972" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Homeostasis ; *Immunity, Mucosal ; Intestinal Mucosa/cytology/*immunology/metabolism ; Intestine, Small/cytology/immunology/metabolism ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Nude ; Point Mutation ; Receptors, Thyrotropin/genetics/metabolism ; Receptors, Thyrotropin-Releasing Hormone/genetics/metabolism ; T-Lymphocyte Subsets/immunology/metabolism ; T-Lymphocytes/*immunology/metabolism ; Thyrotropin/genetics/*metabolism ; Thyrotropin-Releasing Hormone/*metabolism/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-12-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Husten, L -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1228.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411750" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenal Glands/metabolism ; Animals ; Antigens, CD36/genetics/*metabolism ; Arteriosclerosis/etiology/metabolism ; *Carrier Proteins ; Cholesterol/blood/metabolism ; Cloning, Molecular ; Humans ; Lipoproteins, HDL/blood/*metabolism ; Liver/metabolism ; *Membrane Proteins ; Mice ; Mice, Knockout ; *RNA-Binding Proteins ; *Receptors, Immunologic ; Receptors, Lipoprotein/genetics/*metabolism ; Receptors, Scavenger ; Scavenger Receptors, Class B
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 14
    Publikationsdatum: 1997-12-31
    Beschreibung: A lymphocyte subpopulation, the Valpha14 natural killer T (NKT) cells, expresses both NK1.1 and a single invariant T cell receptor encoded by the Valpha14 and Jalpha281 gene segments. Mice with a deletion of the Jalpha281 gene segment were found to exclusively lack this subpopulation. The Valpha14 NKT cell-deficient mice could no longer mediate the interleukin-12 (IL-12)-induced rejection of tumors. Although the antitumor effect of IL-12 was thought to be mediated through natural killer cells and T cells, Valpha14 NKT cells were found to be an essential target of IL-12, and they mediated their cytotoxicity by an NK-like effector mechanism after activation with IL-12.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cui, J -- Shin, T -- Kawano, T -- Sato, H -- Kondo, E -- Toura, I -- Kaneko, Y -- Koseki, H -- Kanno, M -- Taniguchi, M -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1623-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Core Research for Evolutional Science and Technology (CREST) Project, Japan Science and Technology Corporation (JST), 1-8-1 Inohana, Chuo-ku, Chiba, Japan 260.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9374462" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anti-Bacterial Agents/pharmacology ; *Cytotoxicity, Immunologic ; Gene Deletion ; Gene Targeting ; Genes, RAG-1 ; Genes, T-Cell Receptor alpha ; Interferon-gamma/immunology ; Interleukin-12/*immunology ; Killer Cells, Natural/*immunology ; *Macrolides ; Melanoma, Experimental/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Neoplasms, Experimental/*immunology ; Poly I-C/pharmacology ; Proton-Translocating ATPases/antagonists & inhibitors ; Receptors, Antigen, T-Cell, alpha-beta/genetics/*immunology ; T-Lymphocyte Subsets/*immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-06-27
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, G -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):1973.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9221499" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Chromosome Mapping ; Chromosomes, Human, Pair 4 ; Genetic Markers ; Humans ; Lewy Bodies/chemistry ; Mice ; Mice, Transgenic ; Nerve Tissue Proteins/analysis/chemistry/*genetics ; Oxidative Stress ; Parkinson Disease/etiology/*genetics ; Point Mutation ; Protein Conformation ; Protein Folding ; Rats ; Synucleins
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 16
    Publikationsdatum: 1997-06-13
    Beschreibung: Two families of small peptides that bind to the human thrombopoietin receptor and compete with the binding of the natural ligand thrombopoietin (TPO) were identified from recombinant peptide libraries. The sequences of these peptides were not found in the primary sequence of TPO. Screening libraries of variants of one of these families under affinity-selective conditions yielded a 14-amino acid peptide (Ile-Glu-Gly-Pro-Thr-Leu-Arg-Gln-Trp-Leu-Ala-Ala-Arg-Ala) with high affinity (dissociation constant approximately 2 nanomolar) that stimulates the proliferation of a TPO-responsive Ba/F3 cell line with a median effective concentration (EC50) of 400 nanomolar. Dimerization of this peptide by a carboxyl-terminal linkage to a lysine branch produced a compound with an EC50 of 100 picomolar, which was equipotent to the 332-amino acid natural cytokine in cell-based assays. The peptide dimer also stimulated the in vitro proliferation and maturation of megakaryocytes from human bone marrow cells and promoted an increase in platelet count when administered to normal mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cwirla, S E -- Balasubramanian, P -- Duffin, D J -- Wagstrom, C R -- Gates, C M -- Singer, S C -- Davis, A M -- Tansik, R L -- Mattheakis, L C -- Boytos, C M -- Schatz, P J -- Baccanari, D P -- Wrighton, N C -- Barrett, R W -- Dower, W J -- New York, N.Y. -- Science. 1997 Jun 13;276(5319):1696-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Affymax Research Institute, 4001 Miranda Avenue, Palo Alto, CA 94304, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9180079" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Binding, Competitive ; Blood Platelets/cytology ; Cell Division ; Cell Line ; Cells, Cultured ; Consensus Sequence ; Dimerization ; Erythropoietin/pharmacology ; Hematopoiesis/drug effects ; Humans ; Megakaryocytes/cytology ; Mice ; Molecular Sequence Data ; *Neoplasm Proteins ; Oligopeptides/*metabolism/*pharmacology ; Peptide Library ; Peptides/metabolism/pharmacology ; Platelet Count ; Proto-Oncogene Proteins/*agonists/metabolism ; *Receptors, Cytokine ; Receptors, Thrombopoietin ; Recombinant Proteins/metabolism/pharmacology ; Thrombopoietin/*metabolism/pharmacology ; Transfection
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-12-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 Nov 21;278(5342):1404-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411764" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain/metabolism ; Copper/*metabolism/toxicity ; Copper Sulfate/poisoning ; Mice ; Mice, Knockout ; Neurons/drug effects/physiology ; PrPC Proteins/genetics/*metabolism ; Prion Diseases/etiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 18
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-03-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, M -- New York, N.Y. -- Science. 1997 Mar 21;275(5307):1743.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122678" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Evolution ; Butterflies/parasitology ; Female ; Male ; Moths/parasitology ; Ovum/parasitology ; *Parthenogenesis ; Rickettsiaceae/*physiology ; Wasps/microbiology/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-05-30
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 May 30;276(5317):1324-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9190672" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Aged ; Centers for Disease Control and Prevention (U.S.) ; Exercise/*physiology/psychology ; Female ; Guidelines as Topic ; Heart Diseases/epidemiology/*prevention & control ; Humans ; Male ; Middle Aged ; Risk Factors ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 20
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-10-23
    Beschreibung: Neurodegenerative disorders are characterized by extensive neuron death that leads to functional decline, but the neurobiological correlates of functional decline in normal aging are less well defined. For decades, it has been a commonly held notion that widespread neuron death in the neocortex and hippocampus is an inevitable concomitant of brain aging, but recent quantitative studies suggest that neuron death is restricted in normal aging and unlikely to account for age-related impairment of neocortical and hippocampal functions. In this article, the qualitative and quantitative differences between aging and Alzheimer's disease with respect to neuron loss are discussed, and age-related changes in functional and biochemical attributes of hippocampal circuits that might mediate functional decline in the absence of neuron death are explored. When these data are viewed comprehensively, it appears that the primary neurobiological substrates for functional impairment in aging differ in important ways from those in neurodegenerative disorders such as Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrison, J H -- Hof, P R -- AG05138/AG/NIA NIH HHS/ -- AG06647/AG/NIA NIH HHS/ -- MHDA52145/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 17;278(5337):412-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurobiology of Aging Laboratories, the Fishberg Research Center for Neurobiology, and the Department of Geriatrics and Adult Development, Mount Sinai School of Medicine, New York, NY 10029, USA. morrison@cortex.neuro.mssm.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9334292" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Aging ; Alzheimer Disease/pathology ; Animals ; Cell Death ; Cell Survival ; Entorhinal Cortex/pathology ; Estrogens/physiology ; Female ; Hippocampus/cytology/pathology/*physiology ; Humans ; Male ; Memory ; Neocortex/cytology/pathology/*physiology ; *Nerve Degeneration ; Neurofibrillary Tangles/pathology ; Neurofilament Proteins/metabolism ; Neurons/cytology/pathology/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 21
    Publikationsdatum: 1997-12-31
    Beschreibung: Natural killer T (NKT) lymphocytes express an invariant T cell antigen receptor (TCR) encoded by the Valpha14 and Jalpha281 gene segments. A glycosylceramide-containing alpha-anomeric sugar with a longer fatty acyl chain (C26) and sphingosine base (C18) was identified as a ligand for this TCR. Glycosylceramide-mediated proliferative responses of Valpha14 NKT cells were abrogated by treatment with chloroquine-concanamycin A or by monoclonal antibodies against CD1d/Vbeta8, CD40/CD40L, or B7/CTLA-4/CD28, but not by interference with the function of a transporter-associated protein. Thus, this lymphocyte shares distinct recognition systems with either T or NK cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kawano, T -- Cui, J -- Koezuka, Y -- Toura, I -- Kaneko, Y -- Motoki, K -- Ueno, H -- Nakagawa, R -- Sato, H -- Kondo, E -- Koseki, H -- Taniguchi, M -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1626-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CREST (Core Research for Evolutional Science and Technology) Project, Japan Science and Technology Corporation (JST), 1-8-1 Inohana, Chuo, Chiba 260, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9374463" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, CD1/*immunology ; Carbohydrate Conformation ; Cells, Cultured ; Ceramides/chemistry/metabolism/*pharmacology ; Cerebrosides/chemistry/metabolism/*pharmacology ; Coculture Techniques ; Galactosylceramides/chemistry/metabolism/pharmacology ; Glucosylceramides/chemistry/metabolism/pharmacology ; Killer Cells, Natural/*immunology ; Ligands ; *Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Receptors, Antigen, T-Cell, alpha-beta/*immunology ; Structure-Activity Relationship ; T-Lymphocyte Subsets/*immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-05-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 May 16;276(5315):1030-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9173537" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Biological Clocks/*genetics ; CLOCK Proteins ; Chromosome Mapping ; Circadian Rhythm/*genetics ; Cloning, Molecular ; Gene Expression Regulation ; Mice ; Mutation ; Trans-Activators/chemistry/*genetics/physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 23
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-08-22
    Beschreibung: Tuberculosis is the leading cause of death due to an infectious organism, killing an estimated 3 million people annually. Mycobacterium tuberculosis, the causative agent of tuberculosis, and other pathogenic mycobacteria require entry into host macrophages to initiate infection. An invasion mechanism was defined that was shared among pathogenic mycobacteria including M. tuberculosis, M. leprae, and M. avium but not by nonpathogenic mycobacteria or nonmycobacterial intramacrophage pathogens. This pathway required the association of the complement cleavage product C2a with mycobacteria resulting in the formation of a C3 convertase. The mycobacteria-associated C2a cleaved C3, resulting in C3b opsonization of the mycobacteria and recognition by macrophages.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schorey, J S -- Carroll, M C -- Brown, E J -- AI33348/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1997 Aug 22;277(5329):1091-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9262476" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Complement C2/*physiology ; Complement C2a ; Complement C3/metabolism ; Complement C3-C5 Convertases/metabolism ; Complement C3b/immunology ; Horses ; Humans ; In Vitro Techniques ; Isoflurophate/pharmacology ; Macrophages/immunology/*microbiology ; Mice ; Molecular Sequence Data ; Mycobacterium/*pathogenicity ; Mycobacterium avium Complex/immunology/*pathogenicity ; Mycobacterium bovis/immunology/pathogenicity ; Mycobacterium leprae/immunology/pathogenicity ; Mycobacterium tuberculosis/immunology/pathogenicity ; Opsonin Proteins ; Virulence
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 24
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-01-17
    Beschreibung: The proto-oncogene-encoded transcription factor c-Jun activates genes in response to a number of inducers that act through mitogen-activated protein kinase (MAPK) signal transduction pathways. The activation of c-Jun after phosphorylation by MAPK is accompanied by a reduction in c-Jun ubiquitination and consequent stabilization of the protein. These results illustrate the relevance of regulated protein degradation in the signal-dependent control of gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Musti, A M -- Treier, M -- Bohmann, D -- New York, N.Y. -- Science. 1997 Jan 17;275(5298):400-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Meyerhofstr. 1, 69117 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8994040" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 3T3 Cells ; Animals ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Cell Cycle Proteins/metabolism ; GTP-Binding Proteins/metabolism ; Gene Expression Regulation ; JNK Mitogen-Activated Protein Kinases ; Mice ; *Mitogen-Activated Protein Kinases ; Phosphorylation ; Proto-Oncogene Proteins c-jun/*metabolism ; Signal Transduction ; Transfection ; Ubiquitins/*metabolism ; cdc42 GTP-Binding Protein, Saccharomyces cerevisiae
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-06-27
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bagla, P -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):1972.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9221498" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Commerce ; Elephants/*anatomy & histology/genetics/*parasitology ; Female ; Helminthiasis, Animal/*immunology ; Immunity, Innate ; Incisor/anatomy & histology ; Male ; Parasite Egg Count/veterinary ; Sexual Behavior, Animal
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 26
    Publikationsdatum: 1997-06-27
    Beschreibung: Long-term potentiation (LTP), a cellular model of learning and memory, requires calcium-dependent protein kinases. Induction of LTP increased the phosphorus-32 labeling of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type glutamate receptors (AMPA-Rs), which mediate rapid excitatory synaptic transmission. This AMPA-R phosphorylation appeared to be catalyzed by Ca2+- and calmodulin-dependent protein kinase II (CaM-KII): (i) it correlated with the activation and autophosphorylation of CaM-KII, (ii) it was blocked by the CaM-KII inhibitor KN-62, and (iii) its phosphorus-32 peptide map was the same as that of GluR1 coexpressed with activated CaM-KII in HEK-293 cells. This covalent modulation of AMPA-Rs in LTP provides a postsynaptic molecular mechanism for synaptic plasticity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barria, A -- Muller, D -- Derkach, V -- Griffith, L C -- Soderling, T R -- NS27037/NS/NINDS NIH HHS/ -- R01 GM054408/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):2042-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vollum Institute, Oregon Health Sciences University, Portland, OR 97201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9197267" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine/analogs & derivatives/pharmacology ; 2-Amino-5-phosphonovalerate/pharmacology ; Animals ; Calcium/metabolism ; Calcium-Calmodulin-Dependent Protein Kinase Type 2 ; Calcium-Calmodulin-Dependent Protein Kinases/antagonists & inhibitors/*metabolism ; Cell Line ; Enzyme Inhibitors/pharmacology ; Excitatory Amino Acid Antagonists/pharmacology ; Hippocampus/*metabolism ; Humans ; In Vitro Techniques ; *Long-Term Potentiation/drug effects ; Male ; Peptide Mapping ; Phosphorylation ; Rats ; Rats, Sprague-Dawley ; Receptors, AMPA/*metabolism ; Synaptic Transmission/drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 27
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-05-02
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1997 May 2;276(5313):675-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9157544" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alzheimer Disease/*drug therapy ; Animals ; Antioxidants/pharmacology ; Brain/cytology/metabolism ; Choline O-Acetyltransferase/metabolism ; Cognition/drug effects/*physiology ; Controlled Clinical Trials as Topic ; Estrogens/pharmacology/*physiology/therapeutic use ; Female ; Humans ; Male ; Memory/drug effects/*physiology ; Nerve Growth Factors/metabolism ; Receptors, N-Methyl-D-Aspartate/metabolism ; Synapses/physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-08-08
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wrangham, R W -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):774-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anthropology, Harvard University, Cambridge, MA 02138, USA. wrangham@fas.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9273699" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Female ; Male ; Pan troglodytes/*psychology ; *Reproduction ; *Sexual Behavior, Animal ; *Social Dominance
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 29
    Publikationsdatum: 1997-02-14
    Beschreibung: Mutations in the Caenorhabditis elegans gene clk-1 affect biological timing and extend longevity. The gene clk-1 was identified, and the cloned gene complemented the clk-1 phenotypes and restored normal longevity. The CLK-1 protein was found to be conserved among eukaryotes, including humans, and structurally similar to the yeast metabolic regulator Cat5p (also called Coq7p). These proteins contain a tandem duplication of a core 82-residue domain. clk-1 complemented the phenotype of cat5/coq7 null mutants, demonstrating that clk-1 and CAT5/COQ7 share biochemical function and that clk-1 acts at the level of cellular physiology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ewbank, J J -- Barnes, T M -- Lakowski, B -- Lussier, M -- Bussey, H -- Hekimi, S -- New York, N.Y. -- Science. 1997 Feb 14;275(5302):980-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, McGill University, 1205 Avenue Docteur Penfield, Montreal, Quebec, Canada H3A 1B1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9020081" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Caenorhabditis elegans/*genetics/metabolism/*physiology ; *Caenorhabditis elegans Proteins ; Cell Aging/*genetics ; Chromosome Mapping ; Conserved Sequence ; Exons ; Fungal Proteins/chemistry/genetics/physiology ; *Genes, Helminth ; Genetic Complementation Test ; Glycerol/metabolism ; Helminth Proteins/chemistry/*genetics/physiology ; Humans ; Longevity/genetics ; Mice ; Molecular Sequence Data ; Phenotype ; Protein Structure, Secondary ; Protein Structure, Tertiary ; RNA Splicing ; *Saccharomyces cerevisiae Proteins
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  • 30
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-01-03
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Featherstone, C -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):27-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999530" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Actins/*metabolism/ultrastructure ; Adaptor Proteins, Signal Transducing ; Cell Cycle Proteins/*metabolism ; Cell Division ; Cell Membrane/metabolism/ultrastructure ; Cytoskeleton/metabolism/ultrastructure ; GTP-Binding Proteins/*metabolism ; Humans ; Male ; Oncogene Proteins/metabolism ; Protein-Tyrosine Kinases/metabolism ; Proteins/genetics/*metabolism ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-fyn ; *Signal Transduction ; Wiskott-Aldrich Syndrome/genetics/*metabolism ; Wiskott-Aldrich Syndrome Protein ; cdc42 GTP-Binding Protein ; src Homology Domains
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-04-25
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Service, R F -- New York, N.Y. -- Science. 1997 Apr 25;276(5312):533.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9148412" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adhesins, Bacterial/*immunology ; *Adhesins, Escherichia coli ; Animals ; Antibodies, Bacterial/biosynthesis ; *Bacterial Vaccines/administration & dosage/immunology ; Clinical Trials as Topic ; Escherichia coli/*immunology ; Escherichia coli Infections/*prevention & control ; Female ; *Fimbriae Proteins ; Humans ; Immunoglobulin G/biosynthesis ; Mice ; Urinary Tract Infections/immunology/*prevention & control ; Vaccination ; Vaccines, Inactivated/administration & dosage/immunology ; *Vaccines, Synthetic/administration & dosage/immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 32
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-08-22
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Gorman, S -- Wahl, G M -- New York, N.Y. -- Science. 1997 Aug 22;277(5329):1025.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9289845" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; DNA Nucleotidyltransferases/*metabolism ; *Genetic Engineering ; Integrases/metabolism ; Licensure ; Mice ; *Mice, Transgenic ; *Viral Proteins
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  • 33
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-02-28
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1258.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9064779" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/*immunology/virology ; CD4-Positive T-Lymphocytes/immunology/*virology ; Cells, Cultured ; HIV/*physiology ; Humans ; Immunity, Innate ; Male ; Virus Replication
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 34
    Publikationsdatum: 1997-06-20
    Beschreibung: A new type of inhalation aerosol, characterized by particles of small mass density and large size, permitted the highly efficient delivery of inhaled therapeutics into the systemic circulation. Particles with mass densities less than 0.4 gram per cubic centimeter and mean diameters exceeding 5 micrometers were inspired deep into the lungs and escaped the lungs' natural clearance mechanisms until the inhaled particles delivered their therapeutic payload. Inhalation of large porous insulin particles resulted in elevated systemic levels of insulin and suppressed systemic glucose levels for 96 hours, whereas small nonporous insulin particles had this effect for only 4 hours. High systemic bioavailability of testosterone was also achieved by inhalation delivery of porous particles with a mean diameter (20 micrometers) approximately 10 times that of conventional inhaled therapeutic particles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Edwards, D A -- Hanes, J -- Caponetti, G -- Hrkach, J -- Ben-Jebria, A -- Eskew, M L -- Mintzes, J -- Deaver, D -- Lotan, N -- Langer, R -- GM26698/GM/NIGMS NIH HHS/ -- HD29125/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 20;276(5320):1868-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical Engineering, Pennsylvania State University, 204 Fenske Laboratory, University Park, PA 16802, USA. dxe11@psuv.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9188534" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Administration, Inhalation ; Aerosols ; Animals ; Biological Availability ; Blood Glucose/analysis ; Bronchoalveolar Lavage ; *Drug Carriers ; Drug Compounding ; Insulin/administration & dosage/blood/pharmacokinetics ; *Lactic Acid ; *Lung ; Male ; Particle Size ; *Polyglycolic Acid ; *Polylysine ; *Polymers ; Rats ; Rats, Sprague-Dawley ; Testosterone/administration & dosage/blood/pharmacokinetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 35
    Publikationsdatum: 1997-05-30
    Beschreibung: Despite myriads of biological activities ascribed to uteroglobin (UG), a steroid-inducible secreted protein, its physiological functions are unknown. Mice in which the uteroglobin gene was disrupted had severe renal disease that was associated with massive glomerular deposition of predominantly multimeric fibronectin (Fn). The molecular mechanism that normally prevents Fn deposition appears to involve high-affinity binding of UG with Fn to form Fn-UG heteromers that counteract Fn self-aggregation, which is required for abnormal tissue deposition. Thus, UG is essential for maintaining normal renal function in mice, which raises the possibility that an analogous pathogenic mechanism may underlie genetic Fn-deposit human glomerular disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Z -- Kundu, G C -- Yuan, C J -- Ward, J M -- Lee, E J -- DeMayo, F -- Westphal, H -- Mukherjee, A B -- HL47620/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1997 May 30;276(5317):1408-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section on Developmental Genetics, Heritable Disorders Branch, National Institute of Child Health and Human Development (NICHD), National Insitutes of Health (NIH), Bethesda, MD 20892-1830, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9162006" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cells, Cultured ; Crosses, Genetic ; Fibronectins/*metabolism ; Gene Targeting ; Humans ; Kidney Diseases/embryology/genetics/pathology ; *Kidney Glomerulus/embryology/metabolism/ultrastructure ; Mice ; Mice, Inbred C57BL ; Uteroglobin/deficiency/genetics/*physiology
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  • 36
    Publikationsdatum: 1997-04-18
    Beschreibung: The severity of the malaria pandemic in the tropics is aggravated by the ongoing spread of parasite resistance to antimalarial drugs and mosquito resistance to insecticides. A strain of Anopheles gambiae, normally a major vector for human malaria in Africa, can encapsulate and kill the malaria parasites within a melanin-rich capsule in the mosquito midgut. Genetic mapping revealed one major and two minor quantitative trait loci (QTLs) for this encapsulation reaction. Understanding such antiparasite mechanisms in mosquitoes may lead to new strategies for malaria control.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, L -- Cornel, A J -- Wang, R -- Erfle, H -- Voss, H -- Ansorge, W -- Kafatos, F C -- Collins, F H -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):425-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. Disease Control and Prevention, 4770 Buford Hi.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9103203" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anopheles/*genetics/immunology/*parasitology ; Chromosome Mapping ; Crosses, Genetic ; Female ; *Genes, Insect ; Genotype ; Insect Vectors/*genetics/immunology/*parasitology ; Lod Score ; Male ; Melanins/physiology ; Microsatellite Repeats ; Phenotype ; Plasmodium cynomolgi/*immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 37
    Publikationsdatum: 1997-10-06
    Beschreibung: Familial adenomatous polyposis coli (FAP) is a disease characterized by the development of multiple colorectal adenomas, and affected individuals carry germline mutations in the APC gene. With the use of a conditional gene targeting system, a mouse model of FAP was created that circumvents the embryonic lethality of Apc deficiency and directs Apc inactivation specifically to the colorectal epithelium. loxP sites were inserted into the introns around Apc exon 14, and the resultant mutant allele (Apc580S) was introduced into the mouse germline. Mice homozygous for Apc580S were normal; however, upon infection of the colorectal region with an adenovirus encoding the Cre recombinase, the mice developed adenomas within 4 weeks. The adenomas showed deletion of Apc exon 14, indicating that the loss of Apc function was caused by Cre-loxP-mediated recombination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shibata, H -- Toyama, K -- Shioya, H -- Ito, M -- Hirota, M -- Hasegawa, S -- Matsumoto, H -- Takano, H -- Akiyama, T -- Toyoshima, K -- Kanamaru, R -- Kanegae, Y -- Saito, I -- Nakamura, Y -- Shiba, K -- Noda, T -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):120-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Cancer Institute, Toshima-ku, Tokyo 170, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9311916" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenomatous Polyposis Coli/*genetics ; Adenomatous Polyposis Coli Protein ; Adenoviridae/genetics ; Animals ; Colon/metabolism ; Cytoskeletal Proteins/biosynthesis ; Disease Models, Animal ; Exons ; Female ; Frameshift Mutation ; Gene Deletion ; *Gene Targeting ; *Genes, APC ; Genetic Vectors ; Germ-Line Mutation ; Homozygote ; Integrases/genetics/metabolism ; Introns ; Male ; Mice ; Mice, Inbred C57BL ; Recombination, Genetic ; *Viral Proteins
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  • 38
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    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-07-11
    Beschreibung: BOB.1/OBF.1 is a transcriptional coactivator that is constitutively expressed in B cells and interacts with the Oct1 and Oct2 transcription factors. Upon activation of Jurkat T cells and primary murine thymocytes with phorbol esters and ionomycin, BOB.1/OBF.1 expression and transactivation function were induced. BOB.1/OBF.1 was phosphorylated at Ser184 both in vivo and in vitro, and this modification was required for inducible activation. Mutation of Ser184 also diminished transactivation function in B cells, suggesting that the activating phosphorylation that is inducible in T cells is constitutively present in B cells. Thus, BOB.1/OBF.1 is a transcriptional coactivator that is critically regulated by posttranslational modifications to mediate cell type-specific gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zwilling, S -- Dieckmann, A -- Pfisterer, P -- Angel, P -- Wirth, T -- New York, N.Y. -- Science. 1997 Jul 11;277(5323):221-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MSZ, Institut fur Medizinische Strahlenkunde und Zellforschung, Universitat Wurzburg, Versbacher Strasse 5, 97078 Wurzburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9211847" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; B-Lymphocytes/metabolism ; Cells, Cultured ; *DNA-Binding Proteins ; *Gene Expression Regulation ; HeLa Cells ; Homeodomain Proteins/metabolism ; Host Cell Factor C1 ; Humans ; Immunosuppressive Agents/pharmacology ; Ionomycin/pharmacology ; Jurkat Cells ; *Lymphocyte Activation ; Mice ; Molecular Sequence Data ; Octamer Transcription Factor-1 ; Phosphorylation ; Phosphoserine/metabolism ; Recombinant Fusion Proteins/metabolism ; T-Lymphocytes/immunology/*metabolism ; Tetradecanoylphorbol Acetate/pharmacology ; Trans-Activators/genetics/*metabolism ; Transcription Factors/metabolism ; *Transcriptional Activation
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 39
    Publikationsdatum: 1997-09-05
    Beschreibung: In response to DNA damage, mammalian cells prevent cell cycle progression through the control of critical cell cycle regulators. A human gene was identified that encodes the protein Chk1, a homolog of the Schizosaccharomyces pombe Chk1 protein kinase, which is required for the DNA damage checkpoint. Human Chk1 protein was modified in response to DNA damage. In vitro Chk1 bound to and phosphorylated the dual-specificity protein phosphatases Cdc25A, Cdc25B, and Cdc25C, which control cell cycle transitions by dephosphorylating cyclin-dependent kinases. Chk1 phosphorylates Cdc25C on serine-216. As shown in an accompanying paper by Peng et al. in this issue, serine-216 phosphorylation creates a binding site for 14-3-3 protein and inhibits function of the phosphatase. These results suggest a model whereby in response to DNA damage, Chk1 phosphorylates and inhibits Cdc25C, thus preventing activation of the Cdc2-cyclin B complex and mitotic entry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanchez, Y -- Wong, C -- Thoma, R S -- Richman, R -- Wu, Z -- Piwnica-Worms, H -- Elledge, S J -- GM17763/GM/NIGMS NIH HHS/ -- GM44664/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Sep 5;277(5331):1497-501.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Verna and Marrs McLean Department of Biochemistry, Howard Hughes Medical Institute, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9278511" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 14-3-3 Proteins ; Amino Acid Sequence ; Animals ; CDC2 Protein Kinase/*metabolism ; Cell Cycle Proteins/antagonists & inhibitors/*metabolism ; Chromosome Mapping ; Chromosomes, Human, Pair 11 ; Cytoskeletal Proteins ; *DNA Damage ; *F-Box Proteins ; G2 Phase ; HeLa Cells ; Humans ; Mice ; *Mitosis ; Molecular Sequence Data ; Phosphoprotein Phosphatases/metabolism ; Phosphorylation ; Phosphoserine/metabolism ; Protein Kinases/chemistry/genetics/*metabolism ; Protein Tyrosine Phosphatases/metabolism ; Proteins/metabolism ; Recombinant Fusion Proteins/metabolism ; Schizosaccharomyces pombe Proteins ; Signal Transduction ; Transfection ; *Tyrosine 3-Monooxygenase ; *Ubiquitin-Protein Ligases ; *cdc25 Phosphatases
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  • 40
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-10-27
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, N -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9340753" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain/*pathology ; Brain Chemistry ; Cattle ; Creutzfeldt-Jakob Syndrome/pathology/*transmission ; Encephalopathy, Bovine Spongiform/pathology/*transmission ; Humans ; Mice ; Mice, Transgenic ; Prions/*chemistry
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 41
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-01-17
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frank, E -- New York, N.Y. -- Science. 1997 Jan 17;275(5298):324-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA 15261, USA. efrank+@pitt.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9005555" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetylcholine/metabolism ; Action Potentials ; Animals ; Axons/physiology ; Central Nervous System/physiology ; Mice ; Motor Neurons/*physiology ; Muscle Fibers, Skeletal/physiology ; Neuromuscular Junction/*physiology ; Receptors, Cholinergic/metabolism ; Synapses/*physiology ; *Synaptic Transmission
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 42
    Publikationsdatum: 1997-07-18
    Beschreibung: CD1 represents a third lineage of antigen-presenting molecules that are distantly related to major histocompatibility complex (MHC) molecules in the immune system. The crystal structure of mouse CD1d1, corresponding to human CD1d, at 2.8 resolution shows that CD1 adopts an MHC fold that is more closely related to that of MHC class I than to that of MHC class II. The binding groove, although significantly narrower, is substantially larger because of increased depth and it has only two major pockets that are almost completely hydrophobic. The extreme hydrophobicity and shape of the binding site are consistent with observations that human CD1b and CD1c can present mycobacterial cell wall antigens, such as mycolic acid and lipoarabinomannans. However, mouse CD1d1 can present very hydrophobic peptides, but must do so in a very different way from MHC class Ia and class II molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zeng, Z -- Castano, A R -- Segelke, B W -- Stura, E A -- Peterson, P A -- Wilson, I A -- CA-58896/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):339-45.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and the Skaggs Institute for Chemical Biology at the Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9219685" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Antigen Presentation ; Antigens, CD1/*chemistry/immunology/metabolism ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; Glycolipids/chemistry/immunology/metabolism ; Histocompatibility Antigens Class I/chemistry ; Histocompatibility Antigens Class II/chemistry ; Humans ; Hydrogen Bonding ; Ligands ; Lipid Metabolism ; Lipids/chemistry/immunology ; Mice ; Models, Molecular ; *Protein Conformation ; *Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; T-Lymphocyte Subsets/immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 43
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-03-28
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shanahan, F -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1897-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, National University of Ireland, Cork, University Hospital, Cork, Ireland. fshanahan@iruccvax.ucc.ie〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122691" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; CD8-Positive T-Lymphocytes/cytology/immunology/metabolism ; Cell Communication ; Cell Division ; *Immunity, Mucosal ; Intestinal Mucosa/cytology/*immunology/metabolism ; Lymphocyte Activation ; Mice ; Receptors, Thyrotropin-Releasing Hormone/metabolism ; T-Lymphocytes/cytology/*immunology/metabolism ; Thyrotropin/*metabolism/pharmacology ; Thyrotropin-Releasing Hormone/*metabolism/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 44
    Publikationsdatum: 1997-10-10
    Beschreibung: The caspase-3 (CPP32, apopain, YAMA) family of cysteinyl proteases has been implicated as key mediators of apoptosis in mammalian cells. Gelsolin was identified as a substrate for caspase-3 by screening the translation products of small complementary DNA pools for sensitivity to cleavage by caspase-3. Gelsolin was cleaved in vivo in a caspase-dependent manner in cells stimulated by Fas. Caspase-cleaved gelsolin severed actin filaments in vitro in a Ca2+-independent manner. Expression of the gelsolin cleavage product in multiple cell types caused the cells to round up, detach from the plate, and undergo nuclear fragmentation. Neutrophils isolated from mice lacking gelsolin had delayed onset of both blebbing and DNA fragmentation, following apoptosis induction, compared with wild-type neutrophils. Thus, cleaved gelsolin may be one physiological effector of morphologic change during apoptosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kothakota, S -- Azuma, T -- Reinhard, C -- Klippel, A -- Tang, J -- Chu, K -- McGarry, T J -- Kirschner, M W -- Koths, K -- Kwiatkowski, D J -- Williams, L T -- P01 HL48743/HL/NHLBI NIH HHS/ -- R01 HL54188/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 10;278(5336):294-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chiron Corporation, Emeryville, CA 94608, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9323209" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Actins/metabolism ; Amino Acid Chloromethyl Ketones/pharmacology ; Animals ; Antigens, CD95/physiology ; *Apoptosis ; Caspase 3 ; *Caspases ; Cell Line ; *Cell Size ; Cycloheximide/pharmacology ; Cysteine Endopeptidases/*metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Cytoskeleton/metabolism ; DNA Fragmentation ; Gelsolin/*metabolism ; Humans ; Mice ; Neutrophils/cytology/metabolism ; Recombinant Proteins/metabolism ; Transfection ; Tumor Cells, Cultured ; Tumor Necrosis Factor-alpha/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 45
    Publikationsdatum: 1997-10-06
    Beschreibung: Expression of Agouti protein is normally limited to the skin where it affects pigmentation, but ubiquitous expression causes obesity. An expressed sequence tag was identified that encodes Agouti-related protein, whose RNA is normally expressed in the hypothalamus and whose levels were increased eightfold in ob/ob mice. Recombinant Agouti-related protein was a potent, selective antagonist of Mc3r and Mc4r, melanocortin receptor subtypes implicated in weight regulation. Ubiquitous expression of human AGRP complementary DNA in transgenic mice caused obesity without altering pigmentation. Thus, Agouti-related protein is a neuropeptide implicated in the normal control of body weight downstream of leptin signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ollmann, M M -- Wilson, B D -- Yang, Y K -- Kerns, J A -- Chen, Y -- Gantz, I -- Barsh, G S -- EY07106/EY/NEI NIH HHS/ -- GM07365/GM/NIGMS NIH HHS/ -- P30DK-34933/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):135-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9311920" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenal Glands/metabolism ; Amino Acid Sequence ; Animals ; Female ; Humans ; Hypothalamus/metabolism ; Male ; Melanocyte-Stimulating Hormones/antagonists & inhibitors/pharmacology ; Melanophores/metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Mice, Obese ; Mice, Transgenic ; Molecular Sequence Data ; Obesity/etiology ; Organophosphorus Compounds/pharmacology ; Proteins/chemistry/genetics/pharmacology/*physiology ; RNA/genetics/metabolism ; Receptor, Melanocortin, Type 3 ; Receptor, Melanocortin, Type 4 ; Receptors, Corticotropin/*antagonists & inhibitors/metabolism ; Receptors, Peptide/*antagonists & inhibitors/metabolism ; Recombinant Proteins/metabolism ; Signal Transduction ; Xenopus
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 46
    Publikationsdatum: 1997-03-21
    Beschreibung: The adenomatous polyposis coli (APC) tumor suppressor protein binds to beta-catenin, a protein recently shown to interact with Tcf and Lef transcription factors. The gene encoding hTcf-4, a Tcf family member that is expressed in colonic epithelium, was cloned and characterized. hTcf-4 transactivates transcription only when associated with beta-catenin. Nuclei of APC-/- colon carcinoma cells were found to contain a stable beta-catenin-hTcf-4 complex that was constitutively active, as measured by transcription of a Tcf reporter gene. Reintroduction of APC removed beta-catenin from hTcf-4 and abrogated the transcriptional transactivation. Constitutive transcription of Tcf target genes, caused by loss of APC function, may be a crucial event in the early transformation of colonic epithelium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Korinek, V -- Barker, N -- Morin, P J -- van Wichen, D -- de Weger, R -- Kinzler, K W -- Vogelstein, B -- Clevers, H -- CA57345/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 21;275(5307):1784-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, University Hospital, Post Office Box 85500, 3508 GA Utrecht, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9065401" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenomatous Polyposis Coli Protein ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Transformation, Neoplastic ; Cloning, Molecular ; Colon/metabolism ; Colonic Neoplasms/*genetics/metabolism ; Cytoskeletal Proteins/genetics/*metabolism ; Gene Expression Regulation, Neoplastic ; *Genes, APC ; Genes, Reporter ; Humans ; Intestinal Mucosa/metabolism ; Mice ; Molecular Sequence Data ; Signal Transduction ; TCF Transcription Factors ; *Trans-Activators ; Transcription Factor 7-Like 2 Protein ; Transcription Factors/chemistry/genetics/*metabolism ; *Transcriptional Activation ; Transfection ; Tumor Cells, Cultured ; beta Catenin
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 47
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-07-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gavrilov, L A -- Gavrilova, N S -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):17-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9229762" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Female ; Humans ; *Longevity ; Male ; *Nuclear Family ; *Paternal Age
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 48
    Publikationsdatum: 1997-10-10
    Beschreibung: The clonal selection theory states that B lymphocytes producing high-affinity immunoglobulins are selected from a pool of cells undergoing antibody gene mutation. Somatic hypermutation is a well-documented mechanism for achieving diversification of immune responses in mature B cells. Antibody genes were also found to be modified in such cells in germinal centers by recombination of the variable (V), diversity (D), and joining (J) segments. The ability to alter immunoglobulin expression by V(D)J recombination in the selective environment of the germinal center may be an additional mechanism for inactivation or diversification of immune responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Papavasiliou, F -- Casellas, R -- Suh, H -- Qin, X F -- Besmer, E -- Pelanda, R -- Nemazee, D -- Rajewsky, K -- Nussenzweig, M C -- AI33890/AI/NIAID NIH HHS/ -- R01 AI033608/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 10;278(5336):298-301.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Immunology, Rockefeller University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9323210" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Antibody Diversity ; B-Lymphocytes/*immunology ; Cells, Cultured ; DNA Nucleotidyltransferases/genetics/metabolism ; DNA-Binding Proteins/genetics ; Gene Expression ; *Gene Rearrangement, B-Lymphocyte ; Genes, Immunoglobulin ; Genes, RAG-1 ; Germinal Center/cytology/immunology ; Immunoglobulin Joining Region/*genetics ; Immunoglobulin M/biosynthesis/genetics ; Immunoglobulin Variable Region/*genetics ; Lymphocyte Activation ; Mice ; *Recombination, Genetic ; VDJ Recombinases
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 49
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-07-11
    Beschreibung: Platelet-derived growth factor (PDGF)-B-deficient mouse embryos were found to lack microvascular pericytes, which normally form part of the capillary wall, and they developed numerous capillary microaneurysms that ruptured at late gestation. Endothelial cells of the sprouting capillaries in the mutant mice appeared to be unable to attract PDGF-Rbeta-positive pericyte progenitor cells. Pericytes may contribute to the mechanical stability of the capillary wall. Comparisons made between PDGF null mouse phenotypes suggest a general role for PDGFs in the development of myofibroblasts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lindahl, P -- Johansson, B R -- Leveen, P -- Betsholtz, C -- New York, N.Y. -- Science. 1997 Jul 11;277(5323):242-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Biochemistry, University of Goteborg, Medicinaregatan 9A, S-413 90 Goteborg, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9211853" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aneurysm/*etiology ; Animals ; Brain/blood supply ; Capillaries/*cytology/embryology/metabolism ; Cell Movement ; Endothelium, Vascular/cytology/metabolism ; Hemorrhage/etiology ; Mice ; Mice, Inbred C57BL ; Mutation ; Neovascularization, Physiologic ; Platelet-Derived Growth Factor/deficiency/genetics/*physiology ; Proto-Oncogene Proteins/deficiency/genetics/*physiology ; Proto-Oncogene Proteins c-sis ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptor, Platelet-Derived Growth Factor beta ; Receptor, TIE-2 ; Receptors, Platelet-Derived Growth Factor/metabolism ; Signal Transduction ; Stem Cells/cytology/metabolism ; Up-Regulation
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 50
    Publikationsdatum: 1997-06-13
    Beschreibung: Extracellular levels of the excitatory neurotransmitter glutamate in the nervous system are maintained by transporters that actively remove glutamate from the extracellular space. Homozygous mice deficient in GLT-1, a widely distributed astrocytic glutamate transporter, show lethal spontaneous seizures and increased susceptibility to acute cortical injury. These effects can be attributed to elevated levels of residual glutamate in the brains of these mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanaka, K -- Watase, K -- Manabe, T -- Yamada, K -- Watanabe, M -- Takahashi, K -- Iwama, H -- Nishikawa, T -- Ichihara, N -- Kikuchi, T -- Okuyama, S -- Kawashima, N -- Hori, S -- Takimoto, M -- Wada, K -- New York, N.Y. -- Science. 1997 Jun 13;276(5319):1699-702.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Degenerative Neurological Diseases, National Institute of Neuroscience, Kodaira, Tokyo 187, Japan. tanaka@ncnaxp.ncap.go.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9180080" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): ATP-Binding Cassette Transporters/genetics/*metabolism ; Amino Acid Transport System X-AG ; Animals ; Biological Transport ; Brain/*metabolism/pathology ; Brain Injuries/*metabolism/pathology ; Electroencephalography ; Epilepsy/*metabolism/pathology ; Gene Targeting ; Glutamic Acid/*metabolism ; Hippocampus/metabolism/pathology ; Mice ; Mice, Inbred C57BL ; Nerve Degeneration ; Pyramidal Cells/pathology/physiology ; Synapses/metabolism ; Synaptic Transmission
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 51
    Publikationsdatum: 1997-10-06
    Beschreibung: Immunotherapy of mice with preexisting cancers with heat shock protein preparations derived from autologous cancer resulted in retarded progression of the primary cancer, a reduced metastatic load, and prolongation of life-span. Treatment with heat shock protein preparations derived from cancers other than the autologous cancer did not provide significant protection. Spontaneous cancers (lung cancer and melanoma), chemically induced cancers (fibrosarcoma and colon carcinoma), and an ultraviolet radiation-induced spindle cell carcinoma were tested, and the results support the efficacy of autologous cancer-derived heat shock protein-peptide complexes in immunotherapy of cancers without the need to identify specific tumor antigenic epitopes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tamura, Y -- Peng, P -- Liu, K -- Daou, M -- Srivastava, P K -- CA44786/CA/NCI NIH HHS/ -- CA64394/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):117-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Immunotherapy of Cancer and Infectious Diseases, MC1601, University of Connecticut School of Medicine, Farmington, CT 06030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9311915" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, Neoplasm/*immunology/therapeutic use ; Autoimmunity ; CD4-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/immunology ; HSP70 Heat-Shock Proteins/immunology ; Heat-Shock Proteins/*immunology/therapeutic use ; Immunization ; *Immunotherapy ; Killer Cells, Natural/immunology ; Lung Neoplasms/immunology/pathology/secondary/therapy ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C3H ; Mice, Inbred C57BL ; Neoplasm Metastasis ; Neoplasms/immunology/pathology/*therapy ; Neoplasms, Experimental/immunology/pathology/*therapy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 52
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-06-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morell, V -- New York, N.Y. -- Science. 1997 Jun 13;276(5319):1647-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9206828" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Biological Evolution ; Breeding ; Carnivora/*genetics ; Crosses, Genetic ; DNA, Mitochondrial/*genetics ; Dogs/*genetics ; Female ; Haplotypes ; Male
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 53
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-12-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kang, S M -- Hoffmann, A -- Le, D -- Springer, M L -- Stock, P G -- Blau, H M -- F32 HL08991/HL/NHLBI NIH HHS/ -- R01-CA59717/CA/NCI NIH HHS/ -- R01-HD18179/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1322-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411754" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, CD95/biosynthesis ; Apoptosis ; Cell Differentiation ; Cell Transplantation ; Fas Ligand Protein ; *Graft Rejection ; Immune Tolerance ; Islets of Langerhans/cytology ; *Islets of Langerhans Transplantation ; Membrane Glycoproteins/genetics/*physiology ; Mice ; Mice, Inbred C3H ; Mice, Inbred C57BL ; Muscle Fibers, Skeletal/*cytology/metabolism ; Muscle, Skeletal/*cytology/metabolism ; Neutrophils/*immunology ; Transfection
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 54
    Publikationsdatum: 1997-08-15
    Beschreibung: The epithelium that lines the gut is impermeable to macromolecules and microorganisms, except in Peyer's patches (PPs), where the lymphoid follicle-associated epithelium (FAE) contains M cells that transport antigens and microorganisms. A cultured system that reproduces the main characteristics of FAE and M cells was established by cultivation of PP lymphocytes with the differentiated human intestinal cell line Caco-2. Lymphocytes settled into the epithelial monolayer, inducing reorganization of the brush border and a temperature-dependent transport of particles and Vibrio cholerae. This model system could prove useful for intestinal physiology, vaccine research, and drug delivery studies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerneis, S -- Bogdanova, A -- Kraehenbuhl, J P -- Pringault, E -- New York, N.Y. -- Science. 1997 Aug 15;277(5328):949-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Swiss Institute for Experimental Cancer Research, and Institute of Biochemistry, University of Lausanne, CH-1066 Epalinges-Lausanne, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9252325" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; B-Lymphocytes/immunology ; *Bacterial Translocation ; Caco-2 Cells ; Carrier Proteins/analysis ; Cell Polarity ; Coculture Techniques ; Fluorescein-5-isothiocyanate ; Humans ; *Immunity, Mucosal ; Intestinal Mucosa/*cytology/*immunology/microbiology ; Lymphocytes/*immunology ; Mice ; Mice, Inbred BALB C ; Microfilament Proteins/analysis ; Microspheres ; Microvilli/chemistry/ultrastructure ; Peyer's Patches/cytology/*immunology ; Sucrase-Isomaltase Complex/analysis ; T-Lymphocytes/immunology ; Temperature ; Vibrio cholerae/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 55
    Publikationsdatum: 1997-01-24
    Beschreibung: Lymphocyte-specific interferon regulatory factor (LSIRF) (now called IRF4) is a transcription factor expressed only in lymphocytes. Mice deficient in IRF4 showed normal distribution of B and T lymphocyes at 4 to 5 weeks of age but developed progressive generalized lymphadenopathy. IRF4-deficient mice exhibited a profound reduction in serum immunoglobulin concentrations and did not mount detectable antibody responses. T lymphocyte function was also impaired in vivo; these mice could not generate cytotoxic or antitumor responses. Thus, IRF4 is essential for the function and homeostasis of both mature B and mature T lymphocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mittrucker, H W -- Matsuyama, T -- Grossman, A -- Kundig, T M -- Potter, J -- Shahinian, A -- Wakeham, A -- Patterson, B -- Ohashi, P S -- Mak, T W -- New York, N.Y. -- Science. 1997 Jan 24;275(5299):540-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, University of Toronto, Toronto, Ontario, M5G 2C1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999800" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigen Presentation ; B-Lymphocytes/*immunology ; Bone Marrow Cells ; Cytotoxicity, Immunologic ; DNA-Binding Proteins/genetics/*physiology ; Female ; Gene Targeting ; Graft vs Host Reaction ; Immunization ; Immunoglobulins/blood ; Interferon Regulatory Factors ; Lymphatic Diseases/etiology ; Lymphocyte Activation ; Lymphocyte Subsets/cytology ; Lymphoid Tissue/cytology ; Male ; Mast-Cell Sarcoma/immunology ; Mice ; Mice, Inbred C57BL ; Mice, SCID ; Neoplasm Transplantation ; T-Lymphocytes/*immunology ; T-Lymphocytes, Cytotoxic/immunology ; Transcription Factors/genetics/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 56
    Publikationsdatum: 1997-03-28
    Beschreibung: Signal transmission by many cell surface receptors results in the activation of phosphoinositide (PI) 3-kinases that phosphorylate the 3' position of polyphosphoinositides. From a screen for mouse proteins that bind phosphoinositides, the protein GRP1was identified. GRP1 binds phosphatidylinositol-3,4,5-trisphosphate [PtdIns(3,4, 5)P3] through a pleckstrin homology (PH) domain and displays a region of high sequence similarity to the yeast Sec7 protein. The PH domain of the closely related protein cytohesin-1, which, through its Sec7 homology domain, regulates integrin beta2 and catalyzes guanine nucleotide exchange of the small guanine nucleotide-binding protein ARF1, was also found to specifically bind PtdIns(3,4,5)P3. GRP1 and cytohesin-1 appear to connect receptor-activated PI 3-kinase signaling pathways with proteins that mediate biological responses such as cell adhesion and membrane trafficking.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klarlund, J K -- Guilherme, A -- Holik, J J -- Virbasius, J V -- Chawla, A -- Czech, M P -- DK30648/DK/NIDDK NIH HHS/ -- DK30898/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1927-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Molecular Medicine and Department of Biochemistry and Molecular Biology, University of Massachusetts Medical Center, 373 Plantation Street, Worcester, MA 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072969" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): ADP-Ribosylation Factor 1 ; ADP-Ribosylation Factors ; Adipocytes/chemistry ; Amino Acid Sequence ; Animals ; Antigens, CD18/metabolism ; Blood Proteins/*chemistry ; Brain Chemistry ; Cell Adhesion Molecules/chemistry/*metabolism ; Cell Membrane/metabolism ; Cells, Cultured ; Cloning, Molecular ; DNA, Complementary ; Fungal Proteins/*chemistry ; GTP-Binding Proteins/metabolism ; *Guanine Nucleotide Exchange Factors ; Humans ; Mice ; Molecular Sequence Data ; Phosphatidylinositol 3-Kinases ; Phosphatidylinositol Phosphates/*metabolism ; *Phosphoproteins ; Phosphorylation ; Phosphotransferases (Alcohol Group Acceptor)/*metabolism ; Receptors, Cytoplasmic and Nuclear/metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Sequence Homology, Amino Acid ; *Signal Transduction
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 57
    Publikationsdatum: 1997-10-24
    Beschreibung: Animals vary in their sensitivity to ethanol, a trait at least partly determined by genetic factors. In order to identify possible responsible genes, mice lacking Fyn, a non-receptor type tyrosine kinase, were investigated. These mice were hypersensitive to the hypnotic effect of ethanol. The administration of ethanol enhanced tyrosine phosphorylation of the N-methyl-D-aspartate receptor (NMDAR) in the hippocampus of control mice but not in Fyn-deficient mice. An acute tolerance to ethanol inhibition of NMDAR-mediated excitatory postsynaptic potentials in hippocampal slices developed in control mice but not in Fyn-deficient mice. These results indicate that Fyn affects behavioral, biochemical, and physiological responses to ethanol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyakawa, T -- Yagi, T -- Kitazawa, H -- Yasuda, M -- Kawai, N -- Tsuboi, K -- Niki, H -- New York, N.Y. -- Science. 1997 Oct 24;278(5338):698-701.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Neurobiology of Emotion, Brain Science Institute, RIKEN, Hirosawa, Wako-shi, Saitama-ken 351-01, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9381182" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Central Nervous System Depressants/*pharmacology ; Ethanol/*pharmacology ; Excitatory Postsynaptic Potentials/drug effects ; Flurazepam/pharmacology ; Hippocampus/metabolism ; Hypnotics and Sedatives/pharmacology ; In Vitro Techniques ; Male ; Mice ; Mice, Knockout ; Motor Activity/*drug effects ; N-Methylaspartate/pharmacology ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein-Tyrosine Kinases/deficiency/genetics/*metabolism ; Proto-Oncogene Proteins/deficiency/genetics/*metabolism ; Proto-Oncogene Proteins c-fyn ; Receptors, N-Methyl-D-Aspartate/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 58
    Publikationsdatum: 1997-06-06
    Beschreibung: Pheromones are intraspecific chemical signals important for mate attraction and discrimination. In the fruit fly Drosophila melanogaster, hydrocarbons on the cuticular surface of the animal are sexually dimorphic in both their occurrence and their effects: Female-specific molecules stimulate male sexual excitation, whereas the predominant male-specific molecule tends to inhibit male excitation. Complete feminization of the pheromone mixture produced by males was induced by targeted expression of the transformer gene in adult oenocytes (subcuticular abdominal cells) or by ubiquitous expression during early imaginal life. The resulting flies generally exhibited male heterosexual orientation but elicited homosexual courtship from other males.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ferveur, J F -- Savarit, F -- O'Kane, C J -- Sureau, G -- Greenspan, R J -- Jallon, J M -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1997 Jun 6;276(5318):1555-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mecanismes de communication, Unite de Recherche Associee-CNRS 1491, Batiment 446, Universite Paris-Sud, 91405, Orsay-Cedex, France. ferveur@ext.jussieu.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9171057" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Drosophila melanogaster ; Female ; Gene Expression Regulation, Developmental ; Homosexuality ; Male ; Nuclear Proteins/genetics/physiology ; Recombinant Fusion Proteins ; Sex Attractants/genetics/*physiology ; *Sex Characteristics ; Sex Differentiation ; *Sexual Behavior, Animal/physiology ; Transgenes
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 59
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-12-31
    Beschreibung: Lhx3 and Lhx4 (Gsh4), two closely related LIM homeobox genes, determine formation of the pituitary gland in mice. Rathke's pouch is formed in two steps-first as a rudiment and later as a definitive pouch. Lhx3 and Lhx4 have redundant control over formation of the definitive pouch. Lhx3 controls a subsequent step of pituitary fate commitment. Thereafter, Lhx3 and Lhx4 together regulate proliferation and differentiation of pituitary-specific cell lineages. Thus, Lhx3 and Lhx4 dictate pituitary organ identity by controlling developmental decisions at multiple stages of organogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sheng, H Z -- Moriyama, K -- Yamashita, T -- Li, H -- Potter, S S -- Mahon, K A -- Westphal, H -- New York, N.Y. -- Science. 1997 Dec 5;278(5344):1809-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Mammalian Genes and Development, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9388186" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Differentiation ; Cell Division ; Cell Lineage ; Embryonic and Fetal Development/genetics ; Gene Expression Regulation, Developmental ; *Genes, Homeobox ; Homeodomain Proteins/*genetics/physiology ; LIM-Homeodomain Proteins ; Mice ; Mutation ; Pituitary Gland/chemistry/cytology/*embryology ; Pituitary Hormones/analysis/genetics ; Stem Cells/cytology ; *Transcription Factors
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 60
    Publikationsdatum: 1997-10-06
    Beschreibung: Apoptosis of mouse neocortical neurons induced by serum deprivation or by staurosporine was associated with an early enhancement of delayed rectifier (IK) current and loss of total intracellular K+. This IK augmentation was not seen in neurons undergoing excitotoxic necrosis or in older neurons resistant to staurosporine-induced apoptosis. Attenuating outward K+ current with tetraethylammonium or elevated extracellular K+, but not blockers of Ca2+, Cl-, or other K+ channels, reduced apoptosis, even if associated increases in intracellular Ca2+ concentration were prevented. Furthermore, exposure to the K+ ionophore valinomycin or the K+-channel opener cromakalim induced apoptosis. Enhanced K+ efflux may mediate certain forms of neuronal apoptosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, S P -- Yeh, C H -- Sensi, S L -- Gwag, B J -- Canzoniero, L M -- Farhangrazi, Z S -- Ying, H S -- Tian, M -- Dugan, L L -- Choi, D W -- 30337/PHS HHS/ -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):114-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for the Study of Nervous System Injury and Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9311914" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Chloromethyl Ketones/pharmacology ; Animals ; *Apoptosis/drug effects ; Benzopyrans/pharmacology ; Calcium/metabolism ; Cerebral Cortex/cytology ; Cromakalim ; Cycloheximide/pharmacology ; Cysteine Proteinase Inhibitors/pharmacology ; Gadolinium/pharmacology ; Mice ; N-Methylaspartate/pharmacology ; Neurons/*cytology/metabolism ; Neuroprotective Agents/pharmacology ; Nifedipine/pharmacology ; Patch-Clamp Techniques ; Potassium/*metabolism ; Potassium Channels/drug effects/*metabolism ; Pyrroles/pharmacology ; Staurosporine/pharmacology ; Tetraethylammonium ; Tetraethylammonium Compounds/pharmacology ; Veratridine/pharmacology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 61
    Publikationsdatum: 1997-01-31
    Beschreibung: The regulation of the serine-threonine kinase Akt by lipid products of phosphoinositide 3-kinase (PI 3-kinase) was investigated. Akt activity was found to correlate with the amount of phosphatidylinositol-3,4-bisphosphate (PtdIns-3,4-P2) in vivo, and synthetic PtdIns-3,4-P2 activated Akt both in vitro and in vivo. Binding of PtdIns-3,4-P2 occurred within the Akt pleckstrin homology (PH) domain and facilitated dimerization of Akt. Akt mutated in the PH domain was not activated by PI 3-kinase in vivo or by PtdIns-3, 4-P2 in vitro, and it was impaired in binding to PtdIns-3,4-P2. Examination of the binding to other phosphoinositides revealed that they bound to the Akt PH domain with much lower affinity than did PtdIns-3,4-P2 and failed to increase Akt activity. Thus, Akt is apparently regulated by the direct interaction of PtdIns-3,4-P2 with the Akt PH domain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Franke, T F -- Kaplan, D R -- Cantley, L C -- Toker, A -- GM41890/GM/NIGMS NIH HHS/ -- N01-CO-74101/CO/NCI NIH HHS/ -- R01 GM041890/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jan 31;275(5300):665-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉ABL-Basic Research Program, National Cancer Institute-Frederick Cancer Research Facility and Development Center (NCI-FCRFDC), Frederick, MD 21702, USA. tfranke@bidmc.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9005852" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 3T3 Cells ; Animals ; COS Cells ; Dimerization ; Enzyme Activation ; Mice ; Phosphatidylinositol 3-Kinases ; Phosphatidylinositol Phosphates/*metabolism/pharmacology ; Phosphorylation ; Phosphotransferases (Alcohol Group Acceptor)/metabolism ; Platelet-Derived Growth Factor/pharmacology ; Point Mutation ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins c-akt ; Recombinant Fusion Proteins/chemistry/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 62
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-08-15
    Beschreibung: It is hypothesized that collective efficacy, defined as social cohesion among neighbors combined with their willingness to intervene on behalf of the common good, is linked to reduced violence. This hypothesis was tested on a 1995 survey of 8782 residents of 343 neighborhoods in Chicago, Illinois. Multilevel analyses showed that a measure of collective efficacy yields a high between-neighborhood reliability and is negatively associated with variations in violence, when individual-level characteristics, measurement error, and prior violence are controlled. Associations of concentrated disadvantage and residential instability with violence are largely mediated by collective efficacy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sampson, R J -- Raudenbush, S W -- Earls, F -- New York, N.Y. -- Science. 1997 Aug 15;277(5328):918-24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Sociology, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9252316" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Chicago ; Female ; Humans ; Male ; Models, Statistical ; *Residence Characteristics ; Social Conditions ; *Social Control, Informal ; *Social Environment ; Social Values ; Socioeconomic Factors ; *Violence
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 63
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-08-08
    Beschreibung: Computational studies suggest that acquisition of a motor skill involves learning an internal model of the dynamics of the task, which enables the brain to predict and compensate for mechanical behavior. During the hours that follow completion of practice, representation of the internal model gradually changes, becoming less fragile with respect to behavioral interference. Here, functional imaging of the brain demonstrates that within 6 hours after completion of practice, while performance remains unchanged, the brain engages new regions to perform the task; there is a shift from prefrontal regions of the cortex to the premotor, posterior parietal, and cerebellar cortex structures. This shift is specific to recall of an established motor skill and suggests that with the passage of time, there is a change in the neural representation of the internal model and that this change may underlie its increased functional stability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shadmehr, R -- Holcomb, H H -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):821-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomedical Engineering, School of Medicine, Johns Hopkins University, 720 Rutland Avenue, 419 Traylor, Baltimore, MD 21205-2195, USA. reza@bme.jhu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9242612" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Brain Mapping ; Cerebellar Cortex/blood supply/*physiology/radionuclide imaging ; Humans ; Learning ; Male ; *Memory ; Motor Cortex/blood supply/*physiology/radionuclide imaging ; *Motor Skills ; Parietal Lobe/blood supply/*physiology/radionuclide imaging ; Prefrontal Cortex/blood supply/*physiology/radionuclide imaging ; Putamen/blood supply/physiology/radionuclide imaging ; Regional Blood Flow ; Time Factors ; Tomography, Emission-Computed
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 64
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-10-23
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freitas, A A -- Rocha, B -- New York, N.Y. -- Science. 1997 Sep 26;277(5334):1950.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire des Dynamiques Lymphocytaires, Institut Pasteur CNRS URA 1961, 75015 Paris, France. afreitas@pasteur.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9333949" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Apoptosis ; CD8-Positive T-Lymphocytes/cytology/immunology ; Cell Survival ; Histocompatibility Antigens Class I/physiology ; Histocompatibility Antigens Class II/physiology ; Immunologic Memory ; Kruppel-Like Transcription Factors ; Lymphocyte Activation ; Mice ; T-Lymphocytes/*cytology/*immunology/metabolism ; Trans-Activators/*physiology ; Zinc Fingers
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 65
    Publikationsdatum: 1997-04-25
    Beschreibung: ARIA (for acetylcholine receptor-inducing activity), a protein purified on the basis of its ability to stimulate acetylcholine receptor (AChR) synthesis in cultured myotubes, is a member of the neuregulin family and is present at motor endplates. This suggests an important role for neuregulins in mediating the nerve-dependent accumulation of AChRs in the postsynaptic membrane. Nerve-muscle synapses have now been analyzed in neuregulin-deficient animals. Mice that are heterozygous for the deletion of neuregulin isoforms containing an immunoglobulin-like domain are myasthenic. Postsynaptic AChR density is significantly reduced, as judged by the decrease in the mean amplitude of spontaneous miniature endplate potentials and bungarotoxin binding. On the other hand, the mean amplitude of evoked endplate potentials was not decreased, due to an increase in the number of quanta released per impulse, a compensation that has been observed in other myasthenic states. Thus, the density of AChRs in the postsynaptic membrane depends on immunoglobulin-containing neuregulin isoforms throughout the life of the animal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sandrock, A W Jr -- Dryer, S E -- Rosen, K M -- Gozani, S N -- Kramer, R -- Theill, L E -- Fischbach, G D -- K08-NS01580/NS/NINDS NIH HHS/ -- R01-NS18458/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1997 Apr 25;276(5312):599-603.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9110980" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetylcholine/metabolism ; Animals ; Bungarotoxins/metabolism ; Glycoproteins/genetics/*physiology ; Heterozygote ; Immunoglobulins/analysis ; In Vitro Techniques ; Membrane Potentials ; Mice ; Motor Endplate/metabolism/physiology ; Muscle Weakness/etiology ; Nerve Tissue Proteins/genetics/*physiology ; Neuregulin-1 ; Neuregulins ; Neuromuscular Junction/*metabolism ; Receptors, Cholinergic/genetics/*metabolism ; Synaptic Transmission
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 66
    Publikationsdatum: 1997-04-11
    Beschreibung: The participation of medial temporal-lobe structures in memory performance was examined by functional magnetic resonance imaging of local blood oxygenation level-dependent signals. Signals were measured during encoding into memory complex scenes or line drawings and during retrieval from memory of previously studied line drawings or words. Encoding tasks yielded increased signals for unfamiliar information in a posterior medial-temporal region that were focused in the parahippocampal cortex. Retrieval tasks yielded increased signals for successfully remembered information in an anterior medial-temporal region that were focused in the subiculum. These results indicate that separate components of the human medial temporal-lobe memory system are active during distinct memory processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gabrieli, J D -- Brewer, J B -- Desmond, J E -- Glover, G H -- New York, N.Y. -- Science. 1997 Apr 11;276(5310):264-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology and Neuroscience Program, Stanford University, Stanford, CA 94305, USA. gabrieli@psych.stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9092477" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Brain Mapping ; Female ; Hippocampus/physiology ; Humans ; Magnetic Resonance Imaging ; Male ; Memory/*physiology ; Mental Recall/*physiology ; Temporal Lobe/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 67
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-03-14
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallagher, R -- New York, N.Y. -- Science. 1997 Mar 14;275(5306):1615.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072827" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Humans ; Immunophenotyping ; Interferons/pharmacology ; Interleukin-12/pharmacology ; Mice ; Receptors, Interleukin/*analysis/biosynthesis ; Receptors, Interleukin-12 ; Th2 Cells/*immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 68
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-06-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallagher, R B -- New York, N.Y. -- Science. 1997 Jun 20;276(5320):1817.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9206842" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; B-Lymphocytes/*cytology/immunology/physiology ; Gene Rearrangement ; Genes, Immunoglobulin ; Homeostasis ; Lymphocyte Count ; Mice ; Mice, Transgenic ; Receptors, Antigen, B-Cell/analysis
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 69
    Publikationsdatum: 1997-12-31
    Beschreibung: The lethal yellow (AY/a) mouse has a defect in proopiomelanocortin (POMC) signaling in the brain that leads to obesity, and is resistant to the anorexigenic effects of the hormone leptin. It has been proposed that the weight-reducing effects of leptin are thus transmitted primarily by way of POMC neurons. However, the central effects of defective POMC signaling, and the absence of leptin, on weight gain in double-mutant lethal yellow (AY/a) leptin-deficient (lepob/lepob) mice were shown to be independent and additive. Furthermore, deletion of the leptin gene restored leptin sensitivity to AY/a mice. This result implies that in the AY/a mouse, obesity is independent of leptin action, and resistance to leptin results from desensitization of leptin signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boston, B A -- Blaydon, K M -- Varnerin, J -- Cone, R D -- DK/AR517330/DK/NIDDK NIH HHS/ -- DK02404/DK/NIDDK NIH HHS/ -- HD33703/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1641-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Oregon Health Sciences University, Portland, OR 97201, USA. Laboratories, Rahway, NJ 07065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9374468" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenalectomy ; Agouti Signaling Protein ; Alleles ; Animals ; Arcuate Nucleus of Hypothalamus/*metabolism ; Blood Glucose/analysis ; Corticosterone/blood ; Crosses, Genetic ; Eating/drug effects ; Energy Metabolism ; Female ; Homeostasis ; Insulin/blood ; *Intercellular Signaling Peptides and Proteins ; Leptin ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Obese ; Neurons/metabolism ; Obesity/genetics/*metabolism ; Pro-Opiomelanocortin/*metabolism ; Proteins/genetics/*metabolism/pharmacology ; Signal Transduction ; Weight Gain
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 70
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    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1997-11-14
    Beschreibung: Acting in concert with individual susceptibility, environmental factors such as smoking, diet, and pollutants play a role in most human cancer. However, new molecular evidence indicates that specific groups-characterized by predisposing genetic traits or ethnicity, the very young, and women-may have heightened risk from certain exposures. This is illustrated by molecular epidemiologic studies of environmental carcinogens such as polycyclic aromatic hydrocarbons and aromatic amines. Individual genetic screening for rare high-risk traits or for more common, low-penetrant susceptibility genes is problematic and not routinely recommended. However, knowledge of the full spectrum of both genetic and acquired susceptibility in the population will be instrumental in developing health and regulatory policies that increase protection of the more susceptible groups from risks of environmental carcinogens. This will necessitate revision of current risk assessment methodologies to explicitly account for individual variation in susceptibility to environmental carcinogens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perera, F P -- New York, N.Y. -- Science. 1997 Nov 7;278(5340):1068-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Environmental Health Sciences, Columbia University School of Public Health, 60 Haven Avenue, B-1, New York, NY 10032, USA. fpp1@columbia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9353182" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Aging ; Amines/adverse effects ; Carcinogens, Environmental/*adverse effects ; Continental Population Groups ; Female ; *Genetic Predisposition to Disease ; Humans ; Male ; Neoplasms/chemically induced/ethnology/*etiology/genetics/prevention & control ; Nutritional Physiological Phenomena ; Polycyclic Hydrocarbons, Aromatic/adverse effects ; Risk Factors ; *Sex Characteristics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 71
    Publikationsdatum: 2014-06-17
    Beschreibung: Disease tolerance is the ability of the host to reduce the effect of infection on host fitness. Analysis of disease tolerance pathways could provide new approaches for treating infections and other inflammatory diseases. Typically, an initial exposure to bacterial lipopolysaccharide (LPS) induces a state of refractoriness to further LPS challenge (endotoxin tolerance). We found that a first exposure of mice to LPS activated the ligand-operated transcription factor aryl hydrocarbon receptor (AhR) and the hepatic enzyme tryptophan 2,3-dioxygenase, which provided an activating ligand to the former, to downregulate early inflammatory gene expression. However, on LPS rechallenge, AhR engaged in long-term regulation of systemic inflammation only in the presence of indoleamine 2,3-dioxygenase 1 (IDO1). AhR-complex-associated Src kinase activity promoted IDO1 phosphorylation and signalling ability. The resulting endotoxin-tolerant state was found to protect mice against immunopathology in Gram-negative and Gram-positive infections, pointing to a role for AhR in contributing to host fitness.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4098076/" 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/PMC4098076/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bessede, Alban -- Gargaro, Marco -- Pallotta, Maria T -- Matino, Davide -- Servillo, Giuseppe -- Brunacci, Cinzia -- Bicciato, Silvio -- Mazza, Emilia M C -- Macchiarulo, Antonio -- Vacca, Carmine -- Iannitti, Rossana -- Tissi, Luciana -- Volpi, Claudia -- Belladonna, Maria L -- Orabona, Ciriana -- Bianchi, Roberta -- Lanz, Tobias V -- Platten, Michael -- Della Fazia, Maria A -- Piobbico, Danilo -- Zelante, Teresa -- Funakoshi, Hiroshi -- Nakamura, Toshikazu -- Gilot, David -- Denison, Michael S -- Guillemin, Gilles J -- DuHadaway, James B -- Prendergast, George C -- Metz, Richard -- Geffard, Michel -- Boon, Louis -- Pirro, Matteo -- Iorio, Alfonso -- Veyret, Bernard -- Romani, Luigina -- Grohmann, Ursula -- Fallarino, Francesca -- Puccetti, Paolo -- P30 CA056036/CA/NCI NIH HHS/ -- R01 CA109542/CA/NCI NIH HHS/ -- R01 ES007685/ES/NIEHS NIH HHS/ -- R01ES007685/ES/NIEHS NIH HHS/ -- England -- Nature. 2014 Jul 10;511(7508):184-90. doi: 10.1038/nature13323.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy [2] IMS Laboratory, University of Bordeaux, 33607 Pessac, France [3]. ; 1] Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy [2]. ; Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy. ; Center for Genome Research, University of Modena and Reggio Emilia, 41125 Modena, Italy. ; Department of Chemistry and Technology of Drugs, University of Perugia, 06123 Perugia, Italy. ; 1] Experimental Neuroimmunology Unit, German Cancer Research Center, 69120 Heidelberg, Germany [2] Department of Neurooncology, University Hospital, 69120 Heidelberg, Germany. ; Center for Advanced Research and Education, Asahikawa Medical University, 078-8510 Asahikawa, Japan. ; Kringle Pharma Joint Research Division for Regenerative Drug Discovery, Center for Advanced Science and Innovation, Osaka University, 565-0871 Osaka, Japan. ; CNRS UMR6290, Institut de Genetique et Developpement de Rennes, Universite de Rennes 1, 35043 Rennes, France. ; Department of Environmental Toxicology, University of California, Davis, 95616 California, USA. ; Australian School of Advanced Medicine (ASAM), Macquarie University, 2109 New South Wales, Australia. ; Lankenau Institute for Medical Research, Wynnewood, 19096 Pennsylvania, USA. ; New Link Genetics Corporation, Ames, 50010 Iowa, USA. ; IMS Laboratory, University of Bordeaux, 33607 Pessac, France. ; Bioceros, 3584 Utrecht, The Netherlands. ; Department of Medicine, University of Perugia, 06132 Perugia, Italy. ; Department of Clinical Epidemiology & Biostatistics, McMaster University, Ontario L8S 4K1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24930766" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Bacterial Infections/immunology/metabolism ; Disease Resistance/drug effects/*genetics/*immunology ; Endotoxemia/genetics/immunology/metabolism ; Enzyme Activation/drug effects ; Gene Expression Regulation/drug effects ; Indoleamine-Pyrrole 2,3,-Dioxygenase/metabolism ; Inflammation/enzymology/genetics/metabolism ; Kynurenine/metabolism ; Lipopolysaccharides/pharmacology ; Mice ; Phosphorylation ; Receptors, Aryl Hydrocarbon/genetics/*metabolism ; Signal Transduction ; Tryptophan Oxygenase/metabolism ; src-Family Kinases/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 72
    Publikationsdatum: 2014-08-15
    Beschreibung: The balance between stem cell self-renewal and differentiation is controlled by intrinsic factors and niche signals. In the Drosophila melanogaster ovary, some intrinsic factors promote germline stem cell (GSC) self-renewal, whereas others stimulate differentiation. However, it remains poorly understood how the balance between self-renewal and differentiation is controlled. Here we use D. melanogaster ovarian GSCs to demonstrate that the differentiation factor Bam controls the functional switch of the COP9 complex from self-renewal to differentiation via protein competition. The COP9 complex is composed of eight Csn subunits, Csn1-8, and removes Nedd8 modifications from target proteins. Genetic results indicated that the COP9 complex is required intrinsically for GSC self-renewal, whereas other Csn proteins, with the exception of Csn4, were also required for GSC progeny differentiation. Bam-mediated Csn4 sequestration from the COP9 complex via protein competition inactivated the self-renewing function of COP9 and allowed other Csn proteins to promote GSC differentiation. Therefore, this study reveals a protein-competition-based mechanism for controlling the balance between stem cell self-renewal and differentiation. Because numerous self-renewal factors are ubiquitously expressed throughout the stem cell lineage in various systems, protein competition may function as an important mechanism for controlling the self-renewal-to-differentiation switch.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pan, Lei -- Wang, Su -- Lu, Tinglin -- Weng, Changjiang -- Song, Xiaoqing -- Park, Joseph K -- Sun, Jin -- Yang, Zhi-Hao -- Yu, Junjing -- Tang, Hong -- McKearin, Dennis M -- Chamovitz, Daniel A -- Ni, Jianquan -- Xie, Ting -- GM64428/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2014 Oct 9;514(7521):233-6. doi: 10.1038/nature13562.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA [2] Chinese Academy of Sciences Key Laboratory of Infection and Immunity, Institute of Biophysics, 15 Da Tun Road, Beijing 100101, China [3]. ; 1] Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA [2] Department of Cell Biology and Anatomy, University of Kansas School of Medicine, 3901 Rainbow Boulevard, Kansas City, Kansas 66160, USA [3]. ; 1] Center for Life Sciences, School of Medicine, Tsinghua University, Beijing 100084, China [2]. ; Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA. ; 1] Department of Molecular Biology and Graduate School of Biomedical Sciences, University of Texas Southwestern Medical Center, Dallas, Texas 75390-9148, USA [2] Howard Hughes Medical Institute, Chevy Chase, Maryland 20815-6789, USA. ; Center for Life Sciences, School of Medicine, Tsinghua University, Beijing 100084, China. ; 1] Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA [2] Chinese Academy of Sciences Key Laboratory of Infection and Immunity, Institute of Biophysics, 15 Da Tun Road, Beijing 100101, China. ; Chinese Academy of Sciences Key Laboratory of Infection and Immunity, Institute of Biophysics, 15 Da Tun Road, Beijing 100101, China. ; Department of Plant Sciences, Tel Aviv University, Tel Aviv 69978, Israel. ; 1] Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA [2] Department of Cell Biology and Anatomy, University of Kansas School of Medicine, 3901 Rainbow Boulevard, Kansas City, Kansas 66160, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25119050" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Binding, Competitive ; *Cell Differentiation ; Cell Proliferation ; DNA Helicases/metabolism ; Drosophila Proteins/metabolism ; Drosophila melanogaster/*cytology/*metabolism ; Female ; Intracellular Signaling Peptides and Proteins/metabolism ; Male ; Multiprotein Complexes/*chemistry/*metabolism ; Ovary/cytology ; Peptide Hydrolases/*chemistry/*metabolism ; Protein Binding ; Stem Cells/*cytology/*metabolism ; Ubiquitins/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 73
    Publikationsdatum: 2014-08-30
    Beschreibung: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4469351/" 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/PMC4469351/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geisbert, Thomas W -- UC7 AI070083/AI/NIAID NIH HHS/ -- England -- Nature. 2014 Oct 2;514(7520):41-3. doi: 10.1038/nature13746. Epub 2014 Aug 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Texas Medical Branch at Galveston, Galveston National Laboratory, Galveston, Texas 77550-0610, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25171470" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies, Monoclonal/*therapeutic use ; Antibodies, Viral/*therapeutic use ; Female ; Hemorrhagic Fever, Ebola/*drug therapy ; *Immunization, Passive ; Male
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 74
    Publikationsdatum: 2014-10-09
    Beschreibung: The neutralizing antibody response to influenza virus is dominated by antibodies that bind to the globular head of haemagglutinin, which undergoes a continuous antigenic drift, necessitating the re-formulation of influenza vaccines on an annual basis. Recently, several laboratories have described a new class of rare influenza-neutralizing antibodies that target a conserved site in the haemagglutinin stem. Most of these antibodies use the heavy-chain variable region VH1-69 gene, and structural data demonstrate that they bind to the haemagglutinin stem through conserved heavy-chain complementarity determining region (HCDR) residues. However, the VH1-69 antibodies are highly mutated and are produced by some but not all individuals, suggesting that several somatic mutations may be required for their development. To address this, here we characterize 197 anti-stem antibodies from a single donor, reconstruct the developmental pathways of several VH1-69 clones and identify two key elements that are required for the initial development of most VH1-69 antibodies: a polymorphic germline-encoded phenylalanine at position 54 and a conserved tyrosine at position 98 in HCDR3. Strikingly, in most cases a single proline to alanine mutation at position 52a in HCDR2 is sufficient to confer high affinity binding to the selecting H1 antigen, consistent with rapid affinity maturation. Surprisingly, additional favourable mutations continue to accumulate, increasing the breadth of reactivity and making both the initial mutations and phenylalanine at position 54 functionally redundant. These results define VH1-69 allele polymorphism, rearrangement of the VDJ gene segments and single somatic mutations as the three requirements for generating broadly neutralizing VH1-69 antibodies and reveal an unexpected redundancy in the affinity maturation process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pappas, Leontios -- Foglierini, Mathilde -- Piccoli, Luca -- Kallewaard, Nicole L -- Turrini, Filippo -- Silacci, Chiara -- Fernandez-Rodriguez, Blanca -- Agatic, Gloria -- Giacchetto-Sasselli, Isabella -- Pellicciotta, Gabriele -- Sallusto, Federica -- Zhu, Qing -- Vicenzi, Elisa -- Corti, Davide -- Lanzavecchia, Antonio -- U19 AI-057266/AI/NIAID NIH HHS/ -- England -- Nature. 2014 Dec 18;516(7531):418-22. doi: 10.1038/nature13764. Epub 2014 Oct 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Insitute for Research in Biomedicine, Universita della Svizzera Italiana, Via Vincenzo Vela 6, 6500 Bellinzona, Switzerland. ; Department of Infectious Diseases and Vaccines MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, USA. ; Viral Pathogens and Biosafety Unit, San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milan, Italy. ; Humabs BioMed SA, Via Mirasole 1, 6500 Bellinzona, Switzerland. ; Unit of Preventive Medicine, San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milan, Italy. ; 1] Insitute for Research in Biomedicine, Universita della Svizzera Italiana, Via Vincenzo Vela 6, 6500 Bellinzona, Switzerland [2] Humabs BioMed SA, Via Mirasole 1, 6500 Bellinzona, Switzerland [3]. ; 1] Insitute for Research in Biomedicine, Universita della Svizzera Italiana, Via Vincenzo Vela 6, 6500 Bellinzona, Switzerland [2] Insitute for Microbiology, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zurich, Switzerland [3].〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25296253" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Amino Acid Sequence ; Antibodies, Neutralizing/*genetics ; Cells, Cultured ; Complementarity Determining Regions/chemistry/*genetics ; Female ; Hemagglutinin Glycoproteins, Influenza Virus/immunology ; Humans ; Immunoglobulin Heavy Chains/genetics ; Influenza, Human/*immunology/virology ; Male ; Middle Aged ; Models, Molecular ; Mutation/*genetics ; Orthomyxoviridae/*immunology/metabolism ; Polymorphism, Genetic ; Protein Binding/genetics ; Protein Structure, Tertiary ; Young Adult
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 75
    facet.materialart.
    Unbekannt
    Nature Publishing Group (NPG)
    Publikationsdatum: 2014-10-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2014 Oct 9;514(7521):140. doi: 10.1038/514140a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25297398" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alaska ; Animals ; Arctic Regions ; Female ; *Global Warming ; Male ; Pacific Ocean ; Walruses/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 76
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    Unbekannt
    Nature Publishing Group (NPG)
    Publikationsdatum: 2014-02-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mallapaty, Smriti -- England -- Nature. 2014 Feb 20;506(7488):279. doi: 10.1038/506279a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24553222" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Fasting ; *Federal Government ; Humans ; Male ; Nepal ; *Politics ; Schools, Medical/organization & administration ; *Strikes, Employee ; Universities/*organization & administration
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 77
    Publikationsdatum: 2014-05-30
    Beschreibung: Targeted genome editing by artificial nucleases has brought the goal of site-specific transgene integration and gene correction within the reach of gene therapy. However, its application to long-term repopulating haematopoietic stem cells (HSCs) has remained elusive. Here we show that poor permissiveness to gene transfer and limited proficiency of the homology-directed DNA repair pathway constrain gene targeting in human HSCs. By tailoring delivery platforms and culture conditions we overcame these barriers and provide stringent evidence of targeted integration in human HSCs by long-term multilineage repopulation of transplanted mice. We demonstrate the therapeutic potential of our strategy by targeting a corrective complementary DNA into the IL2RG gene of HSCs from healthy donors and a subject with X-linked severe combined immunodeficiency (SCID-X1). Gene-edited HSCs sustained normal haematopoiesis and gave rise to functional lymphoid cells that possess a selective growth advantage over those carrying disruptive IL2RG mutations. These results open up new avenues for treating SCID-X1 and other diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4082311/" 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/PMC4082311/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Genovese, Pietro -- Schiroli, Giulia -- Escobar, Giulia -- Di Tomaso, Tiziano -- Firrito, Claudia -- Calabria, Andrea -- Moi, Davide -- Mazzieri, Roberta -- Bonini, Chiara -- Holmes, Michael C -- Gregory, Philip D -- van der Burg, Mirjam -- Gentner, Bernhard -- Montini, Eugenio -- Lombardo, Angelo -- Naldini, Luigi -- 249845/European Research Council/International -- TGT11D02/Telethon/Italy -- England -- Nature. 2014 Jun 12;510(7504):235-40. doi: 10.1038/nature13420. Epub 2014 May 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉TIGET, San Raffaele Telethon Institute for Gene Therapy, San Raffaele Scientific Institute, 20132 Milan, Italy. ; 1] TIGET, San Raffaele Telethon Institute for Gene Therapy, San Raffaele Scientific Institute, 20132 Milan, Italy [2] Vita Salute San Raffaele University, 20132 Milan, Italy. ; 1] TIGET, San Raffaele Telethon Institute for Gene Therapy, San Raffaele Scientific Institute, 20132 Milan, Italy [2] The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland 4102, Australia. ; Experimental Hematology Unit, San Raffaele Scientific Institute, 20132 Milan, Italy. ; Sangamo BioSciences Inc., Richmond, California 94804, USA. ; Department of Immunology Erasmus MC, University Medical Center, 3015 Rotterdam, The Netherlands. ; 1] TIGET, San Raffaele Telethon Institute for Gene Therapy, San Raffaele Scientific Institute, 20132 Milan, Italy [2] Vita Salute San Raffaele University, 20132 Milan, Italy [3].〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24870228" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antigens, CD34/metabolism ; DNA, Complementary/genetics ; Endonucleases/metabolism ; Fetal Blood/cytology/metabolism/transplantation ; Gene Targeting/*methods ; Genome, Human/*genetics ; Hematopoiesis/genetics ; Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/*cytology/*metabolism ; Humans ; Interleukin Receptor Common gamma Subunit/genetics ; Male ; Mice ; Mutation/genetics ; Targeted Gene Repair/*methods ; X-Linked Combined Immunodeficiency Diseases/*genetics/therapy
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 78
    Publikationsdatum: 2014-12-04
    Beschreibung: The TRIM37 (also known as MUL) gene is located in the 17q23 chromosomal region, which is amplified in up to approximately 40% of breast cancers. TRIM37 contains a RING finger domain, a hallmark of E3 ubiquitin ligases, but its protein substrate(s) is unknown. Here we report that TRIM37 mono-ubiquitinates histone H2A, a chromatin modification associated with transcriptional repression. We find that in human breast cancer cell lines containing amplified 17q23, TRIM37 is upregulated and, reciprocally, the major H2A ubiquitin ligase RNF2 (also known as RING1B) is downregulated. Genome-wide chromatin immunoprecipitation (ChIP)-chip experiments in 17q23-amplified breast cancer cells identified many genes, including multiple tumour suppressors, whose promoters were bound by TRIM37 and enriched for ubiquitinated H2A. However, unlike RNF2, which is a subunit of polycomb repressive complex 1 (PRC1), we find that TRIM37 associates with polycomb repressive complex 2 (PRC2). TRIM37, PRC2 and PRC1 are co-bound to specific target genes, resulting in their transcriptional silencing. RNA-interference-mediated knockdown of TRIM37 results in loss of ubiquitinated H2A, dissociation of PRC1 and PRC2 from target promoters, and transcriptional reactivation of silenced genes. Knockdown of TRIM37 in human breast cancer cells containing amplified 17q23 substantially decreases tumour growth in mouse xenografts. Conversely, ectopic expression of TRIM37 renders non-transformed cells tumorigenic. Collectively, our results reveal TRIM37 as an oncogenic H2A ubiquitin ligase that is overexpressed in a subset of breast cancers and promotes transformation by facilitating silencing of tumour suppressors and other genes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4269325/" 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/PMC4269325/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bhatnagar, Sanchita -- Gazin, Claude -- Chamberlain, Lynn -- Ou, Jianhong -- Zhu, Xiaochun -- Tushir, Jogender S -- Virbasius, Ching-Man -- Lin, Ling -- Zhu, Lihua J -- Wajapeyee, Narendra -- Green, Michael R -- R01 GM033977/GM/NIGMS NIH HHS/ -- R01GM033977/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2014 Dec 4;516(7529):116-20. doi: 10.1038/nature13955. Epub 2014 Nov 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Howard Hughes Medical Institute, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA [2] Programs in Gene Function and Expression and Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA. ; CEA/DSV/iRCM/LEFG, Genopole G2, and Universite Paris Diderot, 91057 Evry, France. ; Programs in Gene Function and Expression and Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA. ; Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, USA. ; 1] Programs in Gene Function and Expression and Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA [2] Program in Bioinformatics and Integrative Biology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA. ; Department of Pathology, 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/25470042" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Breast Neoplasms/*enzymology/*genetics ; Female ; Gene Expression Profiling ; *Gene Expression Regulation, Neoplastic ; Gene Knockdown Techniques ; Gene Silencing ; Heterografts ; Histones/metabolism ; Humans ; MCF-7 Cells ; Mice ; NIH 3T3 Cells ; Nuclear Proteins/*genetics/*metabolism ; Oncogene Proteins/*genetics/metabolism ; Polycomb Repressive Complex 1/*genetics/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 79
    facet.materialart.
    Unbekannt
    Nature Publishing Group (NPG)
    Publikationsdatum: 2014-01-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crooks, Richard M -- England -- Nature. 2014 Jan 9;505(7482):165-6. doi: 10.1038/505165a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712-1224, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24402276" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Aptamers, Nucleotide ; Biosensing Techniques/*methods ; Humans ; Male ; Microfluidics/*methods
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 80
    Publikationsdatum: 2014-08-28
    Beschreibung: Sensory regions of the brain integrate environmental cues with copies of motor-related signals important for imminent and ongoing movements. In mammals, signals propagating from the motor cortex to the auditory cortex are thought to have a critical role in normal hearing and behaviour, yet the synaptic and circuit mechanisms by which these motor-related signals influence auditory cortical activity remain poorly understood. Using in vivo intracellular recordings in behaving mice, we find that excitatory neurons in the auditory cortex are suppressed before and during movement, owing in part to increased activity of local parvalbumin-positive interneurons. Electrophysiology and optogenetic gain- and loss-of-function experiments reveal that motor-related changes in auditory cortical dynamics are driven by a subset of neurons in the secondary motor cortex that innervate the auditory cortex and are active during movement. These findings provide a synaptic and circuit basis for the motor-related corollary discharge hypothesized to facilitate hearing and auditory-guided behaviours.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4248668/" 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/PMC4248668/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schneider, David M -- Nelson, Anders -- Mooney, Richard -- NS079929/NS/NINDS NIH HHS/ -- R01 DC013826/DC/NIDCD NIH HHS/ -- R21 NS079929/NS/NINDS NIH HHS/ -- T32 GM008441/GM/NIGMS NIH HHS/ -- England -- Nature. 2014 Sep 11;513(7517):189-94. doi: 10.1038/nature13724. Epub 2014 Aug 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Neurobiology, Duke University School of Medicine, Durham, North Carolina 27710, USA [2]. ; Department of Neurobiology, Duke University School of Medicine, Durham, North Carolina 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25162524" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Auditory Cortex/*physiology ; Electrical Synapses/*physiology ; Female ; Male ; Mice ; Mice, Inbred C57BL ; Motor Activity/*physiology ; Optogenetics ; Sensory Receptor Cells/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 81
    Publikationsdatum: 2014-04-18
    Beschreibung: Fertilization occurs when sperm and egg recognize each other and fuse to form a new, genetically distinct organism. The molecular basis of sperm-egg recognition is unknown, but is likely to require interactions between receptor proteins displayed on their surface. Izumo1 is an essential sperm cell-surface protein, but its receptor on the egg has not been described. Here we identify folate receptor 4 (Folr4) as the receptor for Izumo1 on the mouse egg, and propose to rename it Juno. We show that the Izumo1-Juno interaction is conserved within several mammalian species, including humans. Female mice lacking Juno are infertile and Juno-deficient eggs do not fuse with normal sperm. Rapid shedding of Juno from the oolemma after fertilization suggests a mechanism for the membrane block to polyspermy, ensuring eggs normally fuse with just a single sperm. Our discovery of an essential receptor pair at the nexus of conception provides opportunities for the rational development of new fertility treatments and contraceptives.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3998876/" 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/PMC3998876/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bianchi, Enrica -- Doe, Brendan -- Goulding, David -- Wright, Gavin J -- 098051/Wellcome Trust/United Kingdom -- England -- Nature. 2014 Apr 24;508(7497):483-7. doi: 10.1038/nature13203. Epub 2014 Apr 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Surface Signalling Laboratory, Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK. ; Mouse Production Team, Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK. ; Electron and Advanced Light Microscopy Suite, Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24739963" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Conserved Sequence ; Evolution, Molecular ; Female ; Fertility/genetics ; Fertilization/genetics/*physiology ; Genes, Essential ; Glycosylphosphatidylinositols/metabolism ; Humans ; Immunoglobulins/*metabolism ; Infertility, Female/genetics ; Male ; Mammals ; Membrane Proteins/*metabolism ; Mice ; Oocytes/cytology/metabolism ; Ovum/cytology/*metabolism ; Parthenogenesis ; Receptors, Cell Surface/deficiency/genetics/*metabolism ; Sperm Injections, Intracytoplasmic ; Spermatozoa/*metabolism ; Time Factors
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 82
    Publikationsdatum: 2014-03-29
    Beschreibung: Huntington's disease is an autosomal dominant disease associated with a mutation in the gene encoding huntingtin (Htt) leading to expanded polyglutamine repeats of mutant Htt (mHtt) that elicit oxidative stress, neurotoxicity, and motor and behavioural changes. Huntington's disease is characterized by highly selective and profound damage to the corpus striatum, which regulates motor function. Striatal selectivity of Huntington's disease may reflect the striatally selective small G protein Rhes binding to mHtt and enhancing its neurotoxicity. Specific molecular mechanisms by which mHtt elicits neurodegeneration have been hard to determine. Here we show a major depletion of cystathionine gamma-lyase (CSE), the biosynthetic enzyme for cysteine, in Huntington's disease tissues, which may mediate Huntington's disease pathophysiology. The defect occurs at the transcriptional level and seems to reflect influences of mHtt on specificity protein 1, a transcriptional activator for CSE. Consistent with the notion of loss of CSE as a pathogenic mechanism, supplementation with cysteine reverses abnormalities in cultures of Huntington's disease tissues and in intact mouse models of Huntington's disease, suggesting therapeutic potential.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4349202/" 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/PMC4349202/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paul, Bindu D -- Sbodio, Juan I -- Xu, Risheng -- Vandiver, M Scott -- Cha, Jiyoung Y -- Snowman, Adele M -- Snyder, Solomon H -- MH18501/MH/NIMH NIH HHS/ -- R01 MH018501/MH/NIMH NIH HHS/ -- T32 GM007309/GM/NIGMS NIH HHS/ -- England -- Nature. 2014 May 1;509(7498):96-100. doi: 10.1038/nature13136. Epub 2014 Mar 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. ; 1] The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA [2] Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. ; 1] The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA [2] Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA [3] Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24670645" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain/enzymology ; Corpus Striatum/drug effects/enzymology/metabolism/pathology ; Cystathionine gamma-Lyase/*deficiency/genetics ; Cysteine/administration & dosage/biosynthesis/pharmacology/therapeutic use ; Dietary Supplements ; Disease Models, Animal ; Drinking Water/chemistry ; Gene Deletion ; Gene Expression Regulation, Enzymologic/genetics ; Huntington Disease/drug therapy/*enzymology/genetics/*pathology ; Male ; Mice ; Mutant Proteins/genetics/metabolism ; Nerve Tissue Proteins/genetics/metabolism ; Neuroprotective Agents/administration & ; dosage/metabolism/pharmacology/therapeutic use ; Oxidative Stress/drug effects ; Sp1 Transcription Factor/antagonists & inhibitors/metabolism ; Transcription, Genetic/genetics
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 83
    Publikationsdatum: 2014-12-04
    Beschreibung: T-helper type 17 (TH17) cells that produce the cytokines interleukin-17A (IL-17A) and IL-17F are implicated in the pathogenesis of several autoimmune diseases. The differentiation of TH17 cells is regulated by transcription factors such as RORgammat, but post-translational mechanisms preventing the rampant production of pro-inflammatory IL-17A have received less attention. Here we show that the deubiquitylating enzyme DUBA is a negative regulator of IL-17A production in T cells. Mice with DUBA-deficient T cells developed exacerbated inflammation in the small intestine after challenge with anti-CD3 antibodies. DUBA interacted with the ubiquitin ligase UBR5, which suppressed DUBA abundance in naive T cells. DUBA accumulated in activated T cells and stabilized UBR5, which then ubiquitylated RORgammat in response to TGF-beta signalling. Our data identify DUBA as a cell-intrinsic suppressor of IL-17 production.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rutz, Sascha -- Kayagaki, Nobuhiko -- Phung, Qui T -- Eidenschenk, Celine -- Noubade, Rajkumar -- Wang, Xiaoting -- Lesch, Justin -- Lu, Rongze -- Newton, Kim -- Huang, Oscar W -- Cochran, Andrea G -- Vasser, Mark -- Fauber, Benjamin P -- DeVoss, Jason -- Webster, Joshua -- Diehl, Lauri -- Modrusan, Zora -- Kirkpatrick, Donald S -- Lill, Jennie R -- Ouyang, Wenjun -- Dixit, Vishva M -- England -- Nature. 2015 Feb 19;518(7539):417-21. doi: 10.1038/nature13979. Epub 2014 Dec 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Physiological Chemistry, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Protein Chemistry, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Early Discovery Biochemistry, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Discovery Chemistry, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Pathology, Genentech, 1 DNA Way, South San Francisco, California 94080, USA. ; Department of Molecular Biology, Genentech, 1 DNA Way, South San Francisco, California 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25470037" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Enzyme Stability ; Female ; Inflammation/genetics/pathology ; Interleukin-17/*biosynthesis ; Intestine, Small/metabolism/pathology ; Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism ; Proteasome Endopeptidase Complex/metabolism ; Protein Binding ; *Protein Biosynthesis ; Signal Transduction ; Substrate Specificity ; Th17 Cells/*metabolism ; Transforming Growth Factor beta/metabolism ; Ubiquitin-Protein Ligases/metabolism ; Ubiquitin-Specific Proteases/biosynthesis/deficiency/genetics/*metabolism ; Ubiquitination
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 84
    Publikationsdatum: 2014-11-20
    Beschreibung: Emerging evidence suggests that the ribosome has a regulatory function in directing how the genome is translated in time and space. However, how this regulation is encoded in the messenger RNA sequence remains largely unknown. Here we uncover unique RNA regulons embedded in homeobox (Hox) 5' untranslated regions (UTRs) that confer ribosome-mediated control of gene expression. These structured RNA elements, resembling viral internal ribosome entry sites (IRESs), are found in subsets of Hox mRNAs. They facilitate ribosome recruitment and require the ribosomal protein RPL38 for their activity. Despite numerous layers of Hox gene regulation, these IRES elements are essential for converting Hox transcripts into proteins to pattern the mammalian body plan. This specialized mode of IRES-dependent translation is enabled by an additional regulatory element that we term the translation inhibitory element (TIE), which blocks cap-dependent translation of transcripts. Together, these data uncover a new paradigm for ribosome-mediated control of gene expression and organismal development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4353651/" 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/PMC4353651/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xue, Shifeng -- Tian, Siqi -- Fujii, Kotaro -- Kladwang, Wipapat -- Das, Rhiju -- Barna, Maria -- 7DP2OD00850902/OD/NIH HHS/ -- DP2 OD008509/OD/NIH HHS/ -- R01 GM102519/GM/NIGMS NIH HHS/ -- England -- Nature. 2015 Jan 1;517(7532):33-8. doi: 10.1038/nature14010. Epub 2014 Nov 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Developmental Biology, Stanford University, Stanford, California 94305, USA [2] Department of Genetics, Stanford University, Stanford, California 94305, USA [3] Tetrad Graduate Program, University of California, San Francisco, San Francisco, California 94158, USA. ; Department of Biochemistry, Stanford University, Stanford, California 94305, USA. ; 1] Department of Developmental Biology, Stanford University, Stanford, California 94305, USA [2] Department of Genetics, Stanford University, Stanford, California 94305, USA. ; 1] Department of Biochemistry, Stanford University, Stanford, California 94305, USA [2] Department of Physics, Stanford University, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25409156" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 5' Untranslated Regions/*genetics ; Animals ; Bone and Bones/embryology/metabolism ; Cell Line ; Conserved Sequence ; Evolution, Molecular ; Gene Expression Regulation/*genetics ; Genes, Homeobox/*genetics ; Mice ; Molecular Sequence Data ; Protein Biosynthesis/genetics ; RNA Caps/metabolism ; Regulatory Sequences, Ribonucleic Acid/*genetics ; Ribosomal Proteins/metabolism ; Ribosomes/chemistry/*metabolism ; Substrate Specificity ; Zebrafish/genetics
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 85
    Publikationsdatum: 2014-12-24
    Beschreibung: The kinetochore is the crucial apparatus regulating chromosome segregation in mitosis and meiosis. Particularly in meiosis I, unlike in mitosis, sister kinetochores are captured by microtubules emanating from the same spindle pole (mono-orientation) and centromeric cohesion mediated by cohesin is protected in the following anaphase. Although meiotic kinetochore factors have been identified only in budding and fission yeasts, these molecules and their functions are thought to have diverged earlier. Therefore, a conserved mechanism for meiotic kinetochore regulation remains elusive. Here we have identified in mouse a meiosis-specific kinetochore factor that we termed MEIKIN, which functions in meiosis I but not in meiosis II or mitosis. MEIKIN plays a crucial role in both mono-orientation and centromeric cohesion protection, partly by stabilizing the localization of the cohesin protector shugoshin. These functions are mediated mainly by the activity of Polo-like kinase PLK1, which is enriched to kinetochores in a MEIKIN-dependent manner. Our integrative analysis indicates that the long-awaited key regulator of meiotic kinetochore function is Meikin, which is conserved from yeasts to humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Jihye -- Ishiguro, Kei-ichiro -- Nambu, Aya -- Akiyoshi, Bungo -- Yokobayashi, Shihori -- Kagami, Ayano -- Ishiguro, Tadashi -- Pendas, Alberto M -- Takeda, Naoki -- Sakakibara, Yogo -- Kitajima, Tomoya S -- Tanno, Yuji -- Sakuno, Takeshi -- Watanabe, Yoshinori -- England -- Nature. 2015 Jan 22;517(7535):466-71. doi: 10.1038/nature14097. Epub 2014 Dec 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chromosome Dynamics, Institute of Molecular and Cellular Biosciences, University of Tokyo, 1-1-1Yayoi, Tokyo 113-0032, Japan. ; Instituto de Biologia Molecular y Celular del Cancer (CSIC-USAL), 37007 Salamanca, Spain. ; Center for Animal Resources and Development, Kumamoto University, 2-2-1 Honjo, Kumamoto 860-0811 Japan. ; Laboratory for Chromosome Segregation, RIKEN Center for Developmental Biology, 2-2-3 Minatojima-Minamimachi, Chuo-ku, Kobe 650-0047, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25533956" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Cycle Proteins/metabolism ; Centromere/metabolism ; Chromosomal Proteins, Non-Histone/deficiency/genetics/*metabolism ; *Conserved Sequence ; Female ; Humans ; Infertility/genetics/metabolism ; Kinetochores/*metabolism ; Male ; *Meiosis ; Mice ; Molecular Sequence Data ; Protein-Serine-Threonine Kinases/metabolism ; Proto-Oncogene Proteins/metabolism ; Saccharomyces cerevisiae Proteins/metabolism ; Schizosaccharomyces pombe Proteins/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 86
    Publikationsdatum: 2014-10-23
    Beschreibung: The gastrointestinal tracts of mammals are colonized by hundreds of microbial species that contribute to health, including colonization resistance against intestinal pathogens. Many antibiotics destroy intestinal microbial communities and increase susceptibility to intestinal pathogens. Among these, Clostridium difficile, a major cause of antibiotic-induced diarrhoea, greatly increases morbidity and mortality in hospitalized patients. Which intestinal bacteria provide resistance to C. difficile infection and their in vivo inhibitory mechanisms remain unclear. Here we correlate loss of specific bacterial taxa with development of infection, by treating mice with different antibiotics that result in distinct microbiota changes and lead to varied susceptibility to C. difficile. Mathematical modelling augmented by analyses of the microbiota of hospitalized patients identifies resistance-associated bacteria common to mice and humans. Using these platforms, we determine that Clostridium scindens, a bile acid 7alpha-dehydroxylating intestinal bacterium, is associated with resistance to C. difficile infection and, upon administration, enhances resistance to infection in a secondary bile acid dependent fashion. Using a workflow involving mouse models, clinical studies, metagenomic analyses, and mathematical modelling, we identify a probiotic candidate that corrects a clinically relevant microbiome deficiency. These findings have implications for the rational design of targeted antimicrobials as well as microbiome-based diagnostics and therapeutics for individuals at risk of C. difficile infection.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4354891/" 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/PMC4354891/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Buffie, Charlie G -- Bucci, Vanni -- Stein, Richard R -- McKenney, Peter T -- Ling, Lilan -- Gobourne, Asia -- No, Daniel -- Liu, Hui -- Kinnebrew, Melissa -- Viale, Agnes -- Littmann, Eric -- van den Brink, Marcel R M -- Jenq, Robert R -- Taur, Ying -- Sander, Chris -- Cross, Justin R -- Toussaint, Nora C -- Xavier, Joao B -- Pamer, Eric G -- AI95706/AI/NIAID NIH HHS/ -- DP2 OD008440/OD/NIH HHS/ -- DP2OD008440/OD/NIH HHS/ -- K23 AI095398/AI/NIAID NIH HHS/ -- P01 CA023766/CA/NCI NIH HHS/ -- P30 CA008748/CA/NCI NIH HHS/ -- R01 AI042135/AI/NIAID NIH HHS/ -- R01 AI095706/AI/NIAID NIH HHS/ -- R01 AI42135/AI/NIAID NIH HHS/ -- T32 CA009149/CA/NCI NIH HHS/ -- T32 GM007739/GM/NIGMS NIH HHS/ -- T32GM07739/GM/NIGMS NIH HHS/ -- U54 CA148967/CA/NCI NIH HHS/ -- England -- Nature. 2015 Jan 8;517(7533):205-8. doi: 10.1038/nature13828. Epub 2014 Oct 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Infectious Diseases Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA [2] Lucille Castori Center for Microbes, Inflammation and Cancer, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; 1] Computational Biology Program, Sloan-Kettering Institute, New York, New York 10065, USA [2] Department of Biology, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts 02747, USA. ; Computational Biology Program, Sloan-Kettering Institute, New York, New York 10065, USA. ; Lucille Castori Center for Microbes, Inflammation and Cancer, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; Donald B. and Catherine C. Marron Cancer Metabolism Center, Sloan-Kettering Institute, New York, New York 10065, USA. ; Genomics Core Laboratory, Sloan-Kettering Institute, New York, New York 10065, USA. ; 1] Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA [2] Immunology Program, Sloan-Kettering Institute, New York, New York 10065, USA. ; Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA. ; 1] Lucille Castori Center for Microbes, Inflammation and Cancer, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA [2] Computational Biology Program, Sloan-Kettering Institute, New York, New York 10065, USA. ; 1] Infectious Diseases Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA [2] Lucille Castori Center for Microbes, Inflammation and Cancer, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA [3] Immunology Program, Sloan-Kettering Institute, New York, New York 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25337874" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anti-Bacterial Agents/pharmacology ; Bile Acids and Salts/*metabolism ; Biological Evolution ; Clostridium/metabolism ; Clostridium difficile/drug effects/*physiology ; Colitis/metabolism/microbiology/prevention & control/therapy ; Disease Susceptibility/*microbiology ; Feces/microbiology ; Female ; Humans ; Intestines/drug effects/*metabolism/*microbiology ; Metagenome/genetics ; Mice ; Mice, Inbred C57BL ; Microbiota/drug effects/genetics/*physiology ; Symbiosis
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 87
    Publikationsdatum: 2014-10-14
    Beschreibung: Intracellular ISG15 is an interferon (IFN)-alpha/beta-inducible ubiquitin-like modifier which can covalently bind other proteins in a process called ISGylation; it is an effector of IFN-alpha/beta-dependent antiviral immunity in mice. We previously published a study describing humans with inherited ISG15 deficiency but without unusually severe viral diseases. We showed that these patients were prone to mycobacterial disease and that human ISG15 was non-redundant as an extracellular IFN-gamma-inducing molecule. We show here that ISG15-deficient patients also display unanticipated cellular, immunological and clinical signs of enhanced IFN-alpha/beta immunity, reminiscent of the Mendelian autoinflammatory interferonopathies Aicardi-Goutieres syndrome and spondyloenchondrodysplasia. We further show that an absence of intracellular ISG15 in the patients' cells prevents the accumulation of USP18, a potent negative regulator of IFN-alpha/beta signalling, resulting in the enhancement and amplification of IFN-alpha/beta responses. Human ISG15, therefore, is not only redundant for antiviral immunity, but is a key negative regulator of IFN-alpha/beta immunity. In humans, intracellular ISG15 is IFN-alpha/beta-inducible not to serve as a substrate for ISGylation-dependent antiviral immunity, but to ensure USP18-dependent regulation of IFN-alpha/beta and prevention of IFN-alpha/beta-dependent autoinflammation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4303590/" 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/PMC4303590/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Xianqin -- Bogunovic, Dusan -- Payelle-Brogard, Beatrice -- Francois-Newton, Veronique -- Speer, Scott D -- Yuan, Chao -- Volpi, Stefano -- Li, Zhi -- Sanal, Ozden -- Mansouri, Davood -- Tezcan, Ilhan -- Rice, Gillian I -- Chen, Chunyuan -- Mansouri, Nahal -- Mahdaviani, Seyed Alireza -- Itan, Yuval -- Boisson, Bertrand -- Okada, Satoshi -- Zeng, Lu -- Wang, Xing -- Jiang, Hui -- Liu, Wenqiang -- Han, Tiantian -- Liu, Delin -- Ma, Tao -- Wang, Bo -- Liu, Mugen -- Liu, Jing-Yu -- Wang, Qing K -- Yalnizoglu, Dilek -- Radoshevich, Lilliana -- Uze, Gilles -- Gros, Philippe -- Rozenberg, Flore -- Zhang, Shen-Ying -- Jouanguy, Emmanuelle -- Bustamante, Jacinta -- Garcia-Sastre, Adolfo -- Abel, Laurent -- Lebon, Pierre -- Notarangelo, Luigi D -- Crow, Yanick J -- Boisson-Dupuis, Stephanie -- Casanova, Jean-Laurent -- Pellegrini, Sandra -- 1P01AI076210-01A1/AI/NIAID NIH HHS/ -- 309449/European Research Council/International -- 8UL1TR000043/TR/NCATS NIH HHS/ -- P01 AI076210/AI/NIAID NIH HHS/ -- P01 AI090935/AI/NIAID NIH HHS/ -- P01AI090935/AI/NIAID NIH HHS/ -- R00 AI106942/AI/NIAID NIH HHS/ -- R00AI106942-02/AI/NIAID NIH HHS/ -- R01 AI035237/AI/NIAID NIH HHS/ -- R37 AI095983/AI/NIAID NIH HHS/ -- R37AI095983/AI/NIAID NIH HHS/ -- U19 AI083025/AI/NIAID NIH HHS/ -- U19AI083025/AI/NIAID NIH HHS/ -- UL1 TR000043/TR/NCATS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Jan 1;517(7532):89-93. doi: 10.1038/nature13801. Epub 2014 Oct 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China. ; 1] St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, New York 10065, USA [2] Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA. ; Institut Pasteur, Cytokine Signaling Unit, CNRS URA 1961, 75724 Paris, France. ; 1] Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA [2] Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA [3] Microbiology Training Area, Graduate School of Biomedical Sciences of Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA. ; 1] Division of Immunology, Children's Hospital Boston, Boston, Massachusetts 02115, USA [2] Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, 16132 Genoa, Italy. ; Immunology Division and Pediatric Neurology Department, Hacettepe University Children's Hospital, 06100 Ankara, Turkey. ; Division of Infectious Diseases and Clinical Immunology, Pediatric Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, 4739 Teheran, Iran. ; Manchester Academic Health Science Centre, University of Manchester, Genetic Medicine, Manchester, M13 9NT, UK. ; Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha 410013, China. ; St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, New York 10065, USA. ; BGI-Shenzhen, Shenzhen 518083, China. ; Sangzhi County People's Hospital, Sangzhi 427100, China. ; Genetics Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei 430070, China. ; 1] Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China [2] Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA. ; Institut Pasteur, Bacteria-Cell Interactions Unit, 75724 Paris, France. ; CNRS UMR5235, Montpellier II University, Place Eugene Bataillon, 34095 Montpellier, France. ; Department of Biochemistry, McGill University, Montreal, QC H3A 0G4, Canada. ; Paris Descartes University, 75006 Paris, France. ; 1] Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, 75015 Paris, France [2] Paris Descartes University, Imagine Institute, 75015 Paris, France. ; 1] Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, 75015 Paris, France [2] Paris Descartes University, Imagine Institute, 75015 Paris, France [3] Center for the Study of Primary Immunodeficiencies, Necker Hospital for Sick Children, 75015 Paris, France. ; 1] Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA [2] Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA [3] Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA. ; 1] St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, New York 10065, USA [2] Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, 75015 Paris, France [3] Paris Descartes University, Imagine Institute, 75015 Paris, France. ; Division of Immunology, Children's Hospital Boston, Boston, Massachusetts 02115, USA. ; 1] Manchester Academic Health Science Centre, University of Manchester, Genetic Medicine, Manchester, M13 9NT, UK [2] Paris Descartes University, Imagine Institute, 75015 Paris, France [3] INSERM UMR 1163, Laboratory of Neurogenetics and Neuroinflammation, Imagine Institute, 75006 Paris, France. ; 1] Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, 75015 Paris, France [2] Paris Descartes University, Imagine Institute, 75015 Paris, France [3] Howard Hughes Medical Institute, New York, New York 10065, USA [4] Pediatric Hematology-Immunology Unit, Necker Hospital for Sick Children, 75015 Paris, France [5]. ; 1] Institut Pasteur, Cytokine Signaling Unit, CNRS URA 1961, 75724 Paris, France [2].〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25307056" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Alleles ; Child ; Cytokines/deficiency/genetics/*metabolism ; Endopeptidases/chemistry/metabolism ; Female ; Gene Expression Regulation ; Humans ; Inflammation/genetics/immunology/*prevention & control ; Interferon Type I/*immunology/metabolism ; Intracellular Space/*metabolism ; Male ; Pedigree ; S-Phase Kinase-Associated Proteins/metabolism ; Signal Transduction ; Ubiquitination ; Ubiquitins/deficiency/genetics/*metabolism ; Viruses/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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  • 88
    Publikationsdatum: 2014-12-24
    Beschreibung: Broadly, tissue regeneration is achieved in two ways: by proliferation of common differentiated cells and/or by deployment of specialized stem/progenitor cells. Which of these pathways applies is both organ- and injury-specific. Current models in the lung posit that epithelial repair can be attributed to cells expressing mature lineage markers. By contrast, here we define the regenerative role of previously uncharacterized, rare lineage-negative epithelial stem/progenitor (LNEP) cells present within normal distal lung. Quiescent LNEPs activate a DeltaNp63 (a p63 splice variant) and cytokeratin 5 remodelling program after influenza or bleomycin injury in mice. Activated cells proliferate and migrate widely to occupy heavily injured areas depleted of mature lineages, at which point they differentiate towards mature epithelium. Lineage tracing revealed scant contribution of pre-existing mature epithelial cells in such repair, whereas orthotopic transplantation of LNEPs, isolated by a definitive surface profile identified through single-cell sequencing, directly demonstrated the proliferative capacity and multipotency of this population. LNEPs require Notch signalling to activate the DeltaNp63 and cytokeratin 5 program, and subsequent Notch blockade promotes an alveolar cell fate. Persistent Notch signalling after injury led to parenchymal 'micro-honeycombing' (alveolar cysts), indicative of failed regeneration. Lungs from patients with fibrosis show analogous honeycomb cysts with evidence of hyperactive Notch signalling. Our findings indicate that distinct stem/progenitor cell pools repopulate injured tissue depending on the extent of the injury, and the outcomes of regeneration or fibrosis may depend in part on the dynamics of LNEP Notch signalling.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4312207/" 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/PMC4312207/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vaughan, Andrew E -- Brumwell, Alexis N -- Xi, Ying -- Gotts, Jeffrey E -- Brownfield, Doug G -- Treutlein, Barbara -- Tan, Kevin -- Tan, Victor -- Liu, Feng Chun -- Looney, Mark R -- Matthay, Michael A -- Rock, Jason R -- Chapman, Harold A -- F32 HL117600-01/HL/NHLBI NIH HHS/ -- R01 HL44712/HL/NHLBI NIH HHS/ -- U01 HL099995/HL/NHLBI NIH HHS/ -- U01 HL099999/HL/NHLBI NIH HHS/ -- U01 HL111054/HL/NHLBI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Jan 29;517(7536):621-5. doi: 10.1038/nature14112. Epub 2014 Dec 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Cardiovascular Research Institute, University of California, San Francisco (UCSF), San Francisco, California 94143, USA. ; Department of Biochemistry, Stanford University School of Medicine and Howard Hughes Medical Institute, Stanford, California 94305, USA. ; Max Planck Institute for Evolutionary Anthropology, Department of Evolutionary Genetics, Deutscher Platz 6, 04103 Leipzig, Germany. ; Department of Anatomy, School of Medicine, University of California, San Francisco (UCSF), San Francisco, California 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25533958" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Bleomycin ; Cell Lineage ; Cell Proliferation ; Cell Separation ; Cysts/metabolism/pathology ; Epithelial Cells/*cytology/metabolism/*pathology ; Female ; Humans ; Keratin-5/metabolism ; Lung/*cytology/*pathology/physiology ; Lung Injury/chemically induced/*pathology/virology ; Male ; Mice ; Orthomyxoviridae Infections/pathology/virology ; Phosphoproteins/genetics/metabolism ; *Re-Epithelialization ; Receptors, Notch/metabolism ; Signal Transduction ; Stem Cell Transplantation ; Stem Cells/*cytology/metabolism ; Trans-Activators/genetics/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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  • 89
    facet.materialart.
    Unbekannt
    Nature Publishing Group (NPG)
    Publikationsdatum: 2014-12-24
    Beschreibung: Despite three decades of successful, predominantly phenotype-driven discovery of the genetic causes of monogenic disorders, up to half of children with severe developmental disorders of probable genetic origin remain without a genetic diagnosis. Particularly challenging are those disorders rare enough to have eluded recognition as a discrete clinical entity, those with highly variable clinical manifestations, and those that are difficult to distinguish from other, very similar, disorders. Here we demonstrate the power of using an unbiased genotype-driven approach to identify subsets of patients with similar disorders. By studying 1,133 children with severe, undiagnosed developmental disorders, and their parents, using a combination of exome sequencing and array-based detection of chromosomal rearrangements, we discovered 12 novel genes associated with developmental disorders. These newly implicated genes increase by 10% (from 28% to 31%) the proportion of children that could be diagnosed. Clustering of missense mutations in six of these newly implicated genes suggests that normal development is being perturbed by an activating or dominant-negative mechanism. Our findings demonstrate the value of adopting a comprehensive strategy, both genome-wide and nationwide, to elucidate the underlying causes of rare genetic disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Deciphering Developmental Disorders Study -- 098395/Wellcome Trust/United Kingdom -- 100140/Wellcome Trust/United Kingdom -- CZD/16/6/Chief Scientist Office/United Kingdom -- WT098051/Wellcome Trust/United Kingdom -- Department of Health/United Kingdom -- England -- Nature. 2015 Mar 12;519(7542):223-8. doi: 10.1038/nature14135. Epub 2014 Dec 24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25533962" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adolescent ; Animals ; Carrier Proteins/genetics ; Child ; Child, Preschool ; Chromosomal Proteins, Non-Histone/genetics ; Chromosome Aberrations ; DEAD-box RNA Helicases/genetics ; DNA-Binding Proteins/genetics ; Developmental Disabilities/*diagnosis/*genetics ; Dynamin I/genetics ; Exome/genetics ; Female ; Gene Expression Regulation, Developmental ; Genes, Dominant/genetics ; Genome, Human/genetics ; Great Britain ; Guanine Nucleotide Exchange Factors/genetics ; Homeodomain Proteins/genetics ; Humans ; Infant ; Infant, Newborn ; Male ; Mutation, Missense/genetics ; Nerve Tissue Proteins/genetics ; Nuclear Proteins/genetics ; Parents ; Phosphoproteins/genetics ; Polycomb Repressive Complex 1/genetics ; Protein Phosphatase 2/genetics ; Protein-Serine-Threonine Kinases/genetics ; Rare Diseases/genetics ; Transcription Factors/genetics ; Transposases/genetics ; Zebrafish/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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  • 90
    Publikationsdatum: 2014-12-10
    Beschreibung: Myocardial infarction (MI), a leading cause of death around the world, displays a complex pattern of inheritance. When MI occurs early in life, genetic inheritance is a major component to risk. Previously, rare mutations in low-density lipoprotein (LDL) genes have been shown to contribute to MI risk in individual families, whereas common variants at more than 45 loci have been associated with MI risk in the population. Here we evaluate how rare mutations contribute to early-onset MI risk in the population. We sequenced the protein-coding regions of 9,793 genomes from patients with MI at an early age (〈/=50 years in males and 〈/=60 years in females) along with MI-free controls. We identified two genes in which rare coding-sequence mutations were more frequent in MI cases versus controls at exome-wide significance. At low-density lipoprotein receptor (LDLR), carriers of rare non-synonymous mutations were at 4.2-fold increased risk for MI; carriers of null alleles at LDLR were at even higher risk (13-fold difference). Approximately 2% of early MI cases harbour a rare, damaging mutation in LDLR; this estimate is similar to one made more than 40 years ago using an analysis of total cholesterol. Among controls, about 1 in 217 carried an LDLR coding-sequence mutation and had plasma LDL cholesterol 〉 190 mg dl(-1). At apolipoprotein A-V (APOA5), carriers of rare non-synonymous mutations were at 2.2-fold increased risk for MI. When compared with non-carriers, LDLR mutation carriers had higher plasma LDL cholesterol, whereas APOA5 mutation carriers had higher plasma triglycerides. Recent evidence has connected MI risk with coding-sequence mutations at two genes functionally related to APOA5, namely lipoprotein lipase and apolipoprotein C-III (refs 18, 19). Combined, these observations suggest that, as well as LDL cholesterol, disordered metabolism of triglyceride-rich lipoproteins contributes to MI risk.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4319990/" 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/PMC4319990/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Do, Ron -- Stitziel, Nathan O -- Won, Hong-Hee -- Jorgensen, Anders Berg -- Duga, Stefano -- Angelica Merlini, Pier -- Kiezun, Adam -- Farrall, Martin -- Goel, Anuj -- Zuk, Or -- Guella, Illaria -- Asselta, Rosanna -- Lange, Leslie A -- Peloso, Gina M -- Auer, Paul L -- NHLBI Exome Sequencing Project -- Girelli, Domenico -- Martinelli, Nicola -- Farlow, Deborah N -- DePristo, Mark A -- Roberts, Robert -- Stewart, Alexander F R -- Saleheen, Danish -- Danesh, John -- Epstein, Stephen E -- Sivapalaratnam, Suthesh -- Hovingh, G Kees -- Kastelein, John J -- Samani, Nilesh J -- Schunkert, Heribert -- Erdmann, Jeanette -- Shah, Svati H -- Kraus, William E -- Davies, Robert -- Nikpay, Majid -- Johansen, Christopher T -- Wang, Jian -- Hegele, Robert A -- Hechter, Eliana -- Marz, Winfried -- Kleber, Marcus E -- Huang, Jie -- Johnson, Andrew D -- Li, Mingyao -- Burke, Greg L -- Gross, Myron -- Liu, Yongmei -- Assimes, Themistocles L -- Heiss, Gerardo -- Lange, Ethan M -- Folsom, Aaron R -- Taylor, Herman A -- Olivieri, Oliviero -- Hamsten, Anders -- Clarke, Robert -- Reilly, Dermot F -- Yin, Wu -- Rivas, Manuel A -- Donnelly, Peter -- Rossouw, Jacques E -- Psaty, Bruce M -- Herrington, David M -- Wilson, James G -- Rich, Stephen S -- Bamshad, Michael J -- Tracy, Russell P -- Cupples, L Adrienne -- Rader, Daniel J -- Reilly, Muredach P -- Spertus, John A -- Cresci, Sharon -- Hartiala, Jaana -- Tang, W H Wilson -- Hazen, Stanley L -- Allayee, Hooman -- Reiner, Alex P -- Carlson, Christopher S -- Kooperberg, Charles -- Jackson, Rebecca D -- Boerwinkle, Eric -- Lander, Eric S -- Schwartz, Stephen M -- Siscovick, David S -- McPherson, Ruth -- Tybjaerg-Hansen, Anne -- Abecasis, Goncalo R -- Watkins, Hugh -- Nickerson, Deborah A -- Ardissino, Diego -- Sunyaev, Shamil R -- O'Donnell, Christopher J -- Altshuler, David -- Gabriel, Stacey -- Kathiresan, Sekar -- 090532/Wellcome Trust/United Kingdom -- 095552/Wellcome Trust/United Kingdom -- 5U54HG003067-11/HG/NHGRI NIH HHS/ -- G-0907/Parkinson's UK/United Kingdom -- K08 HL114642/HL/NHLBI NIH HHS/ -- K08HL114642/HL/NHLBI NIH HHS/ -- P01 HL076491/HL/NHLBI NIH HHS/ -- P01 HL098055/HL/NHLBI NIH HHS/ -- R01 HL107816/HL/NHLBI NIH HHS/ -- R01HL107816/HL/NHLBI NIH HHS/ -- RC2 HL-102923/HL/NHLBI NIH HHS/ -- RC2 HL-102924/HL/NHLBI NIH HHS/ -- RC2 HL-102925/HL/NHLBI NIH HHS/ -- RC2 HL-102926/HL/NHLBI NIH HHS/ -- RC2 HL-103010/HL/NHLBI NIH HHS/ -- T32 HL007208/HL/NHLBI NIH HHS/ -- T32HL00720/HL/NHLBI NIH HHS/ -- T32HL007604/HL/NHLBI NIH HHS/ -- UL1 TR000439/TR/NCATS NIH HHS/ -- Canadian Institutes of Health Research/Canada -- England -- Nature. 2015 Feb 5;518(7537):102-6. doi: 10.1038/nature13917. Epub 2014 Dec 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Center for Human Genetic Research, Massachusetts General Hospital, Boston, Massachusetts 02114, USA. [2] Cardiovascular Research Center, Massachusetts General Hospital, Boston, Massachusetts 02114, USA. [3] Department of Medicine, Harvard Medical School, Boston, Massachusetts 02114, USA. [4] Program in Medical and Population Genetics, Broad Institute, 7 Cambridge Center, Cambridge, Massachusetts 02142, USA. ; 1] Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St Louis, Missouri 63110, USA. [2] Division of Statistical Genomics, Washington University School of Medicine, St Louis, Missouri 63110, USA. ; Department of Clinical Biochemistry KB3011, Section for Molecular Genetics, Rigshospitalet, Copenhagen University Hospitals and Faculty of Health Sciences, University of Copenhagen, Copenhagen 1165, Denmark. ; Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Universita degli Studi di Milano, Milano 20122, Italy. ; Division of Cardiology, Ospedale Niguarda, Milano 20162, Italy. ; Program in Medical and Population Genetics, Broad Institute, 7 Cambridge Center, Cambridge, Massachusetts 02142, USA. ; Department of Cardiovascular Medicine, The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX1 2J, UK. ; Department of Genetics, University of North Carolina, Chapel Hill, North Carolina 27599, USA. ; Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA. ; University of Verona School of Medicine, Department of Medicine, Verona 37129, Italy. ; John &Jennifer Ruddy Canadian Cardiovascular Genetics Centre, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada. ; Department of Public Health and Primary Care, University of Cambridge, Cambridge CB2 1TN, UK. ; MedStar Health Research Institute, Cardiovascular Research Institute, Hyattsville, Maryland 20782, USA. ; Department of Vascular Medicine, Academic Medical Center, Amsterdam 1105 AZ, The Netherlands. ; Department of Cardiovascular Sciences, University of Leicester, and Leicester NIHR Biomedical Research Unit in Cardiovascular Disease, Glenfield Hospital, Leicester LE3 9QP, UK. ; DZHK (German Research Centre for Cardiovascular Research), Munich Heart Alliance, Deutsches Herzzentrum Munchen, Technische Universitat Munchen, Berlin 13347, Germany. ; Medizinische Klinik II, University of Lubeck, Lubeck 23562, Germany. ; 1] Center for Human Genetics, Duke University, Durham, North Carolina 27708, USA. [2] Department of Cardiology and Center for Genomic Medicine, Duke University School of Medicine, Durham, North Carolina 27708, USA. ; Department of Cardiology and Center for Genomic Medicine, Duke University School of Medicine, Durham, North Carolina 27708, USA. ; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada. ; Department of Biochemistry, Schulich School of Medicine and Dentistry, Robarts Research Institute, University of Western Ontario, London, Ontario N6A 3K7, Canada. ; 1] Department of Biochemistry, Schulich School of Medicine and Dentistry, Robarts Research Institute, University of Western Ontario, London, Ontario N6A 3K7, Canada. [2] Department of Medicine, Schulich School of Medicine and Dentistry, Robarts Research Institute, University of Western Ontario, London, Ontario N6A 3K7, Canada. ; 1] Medical Faculty Mannheim, Mannheim Institute of Public Health, Social and Preventive Medicine, Heidelberg University, Ludolf Krehl Strasse 7-11, Mannheim D-68167, Germany. [2] Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz 8036, Austria. [3] Synlab Academy, Mannheim 68259, Germany. ; Medical Faculty Mannheim, Mannheim Institute of Public Health, Social and Preventive Medicine, Heidelberg University, Ludolf Krehl Strasse 7-11, Mannheim D-68167, Germany. ; The National Heart, Lung, Blood Institute's Framingham Heart Study, Framingham, Massachusetts 01702, USA. ; National Heart, Lung, and Blood Institute Center for Population Studies, The Framingham Heart Study, Framingham, Massachusetts 01702, USA. ; Department of Biostatistics and Epidemiology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; Department of Epidemiology, University of Alabama-Birmingham, Birmingham, Alabama 35233, USA. ; Department of Laboratory Medicine and Pathology, School of Medicine, University of Minnesota, Minneapolis, Minnesota 55455, USA. ; School of Medicine, Wake Forest University, Winston-Salem, North Carolina 27106, USA. ; Department of Medicine, Stanford University School of Medicine, Stanford, California 94305, USA. ; Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina 27599, USA. ; 1] Department of Genetics, University of North Carolina, Chapel Hill, North Carolina 27599, USA. [2] Carolina Center for Genome Sciences, University of North Carolina, Chapel Hill, North Carolina 27599, USA. ; Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota 55455, USA. ; University of Mississippi Medical Center, Jackson, Mississippi 39216, USA. ; Atherosclerosis Research Unit, Department of Medicine, and Center for Molecular Medicine, Karolinska Institutet, Stockholm 171 77, Sweden. ; Clinical Trial Service Unit and Epidemiological Studies Unit, University of Oxford, Oxford OX1 2JD, UK. ; Merck Sharp &Dohme Corporation, Rahway, New Jersey 08889, USA. ; The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX1 2JD, UK. ; 1] The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX1 2JD, UK. [2] Department of Statistics, University of Oxford, Oxford OX1 2JD, UK. ; National Heart, Lung, and Blood Institute, Bethesda, Maryland 20824, USA. ; 1] Cardiovascular Health Research Unit, Departments of Medicine, Epidemiology, and Health Services, University of Washington, Seattle, Washington 98195, USA. [2] Group Health Research Institute, Group Health Cooperative, Seattle, Washington 98101, USA. ; Section on Cardiology, and Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina 27106, USA. ; Jackson Heart Study, University of Mississippi Medical Center, Jackson State University, Jackson, Mississippi 39217, USA. ; Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia 22904, USA. ; 1] Division of Genetic Medicine, Department of Pediatrics, University of Washington, Seattle, Washington 98195, USA. [2] Seattle Children's Hospital, Seattle, Washington 98105, USA. [3] Department of Genome Sciences, University of Washington, Seattle, Washington 98195, USA. ; Department of Biochemistry, University of Vermont, Burlington, Vermont 05405, USA. ; Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts 02118, USA. ; Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. ; St Luke's Mid America Heart Institute, University of Missouri-Kansas City, Kansas City, Missouri 64111, USA. ; 1] Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St Louis, Missouri 63110, USA. [2] Department of Genetics, Washington University in St Louis, Missouri 63130, USA. ; Department of Preventive Medicine and Institute for Genetic Medicine, University of Southern California Keck School of Medicine, Los Angeles, California 90033, USA. ; Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio 44195, USA. ; 1] Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA. [2] Department of Epidemiology, University of Washington, Seattle, Washington 98195, USA. ; Ohio State University, Columbus, Ohio 43210, USA. ; Human Genetics Center, The University of Texas Health Science Center at Houston, Houston, Texas 77030, USA. ; 1] Department of Epidemiology, University of Washington, Seattle, Washington 98195, USA. [2] Department of Medicine, School of Medicine, University of Washington, Seattle, Washington 98195, USA. ; 1] Department of Clinical Biochemistry KB3011, Section for Molecular Genetics, Rigshospitalet, Copenhagen University Hospitals and Faculty of Health Sciences, University of Copenhagen, Copenhagen 1165, Denmark. [2] Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Kobenhavn N, Denmark. ; Center for Statistical Genetics, Department of Biostatistics, University of Michigan, Ann Arbor, Missouri 48109, USA. ; 1] Department of Cardiovascular Medicine, The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX1 2J, UK. [2] The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX1 2JD, UK. ; Department of Genome Sciences, University of Washington, Seattle, Washington 98195, USA. ; Department of Cardiology, Parma Hospital, Parma 43100, Italy. ; 1] Program in Medical and Population Genetics, Broad Institute, 7 Cambridge Center, Cambridge, Massachusetts 02142, USA. [2] Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Center for Human Genetic Research, Massachusetts General Hospital, Boston, Massachusetts 02114, USA. [2] Program in Medical and Population Genetics, Broad Institute, 7 Cambridge Center, Cambridge, Massachusetts 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25487149" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Age Factors ; Age of Onset ; *Alleles ; Apolipoproteins A/*genetics ; Case-Control Studies ; Cholesterol, LDL/blood ; Coronary Artery Disease/genetics ; Exome/*genetics ; Female ; Genetic Predisposition to Disease/*genetics ; Genetics, Population ; Heterozygote ; Humans ; Male ; Middle Aged ; Mutation/genetics ; Myocardial Infarction/blood/*genetics ; National Heart, Lung, and Blood Institute (U.S.) ; Receptors, LDL/*genetics ; Triglycerides/blood ; United States
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 91
    Publikationsdatum: 2014-11-20
    Beschreibung: TP53 is commonly altered in human cancer, and Tp53 reactivation suppresses tumours in vivo in mice (TP53 and Tp53 are also known as p53). This strategy has proven difficult to implement therapeutically, and here we examine an alternative strategy by manipulating the p53 family members, Tp63 and Tp73 (also known as p63 and p73, respectively). The acidic transactivation-domain-bearing (TA) isoforms of p63 and p73 structurally and functionally resemble p53, whereas the DeltaN isoforms (lacking the acidic transactivation domain) of p63 and p73 are frequently overexpressed in cancer and act primarily in a dominant-negative fashion against p53, TAp63 and TAp73 to inhibit their tumour-suppressive functions. The p53 family interacts extensively in cellular processes that promote tumour suppression, such as apoptosis and autophagy, thus a clear understanding of this interplay in cancer is needed to treat tumours with alterations in the p53 pathway. Here we show that deletion of the DeltaN isoforms of p63 or p73 leads to metabolic reprogramming and regression of p53-deficient tumours through upregulation of IAPP, the gene that encodes amylin, a 37-amino-acid peptide co-secreted with insulin by the beta cells of the pancreas. We found that IAPP is causally involved in this tumour regression and that amylin functions through the calcitonin receptor (CalcR) and receptor activity modifying protein 3 (RAMP3) to inhibit glycolysis and induce reactive oxygen species and apoptosis. Pramlintide, a synthetic analogue of amylin that is currently used to treat type 1 and type 2 diabetes, caused rapid tumour regression in p53-deficient thymic lymphomas, representing a novel strategy to target p53-deficient cancers.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4312210/" 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/PMC4312210/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Venkatanarayan, Avinashnarayan -- Raulji, Payal -- Norton, William -- Chakravarti, Deepavali -- Coarfa, Cristian -- Su, Xiaohua -- Sandur, Santosh K -- Ramirez, Marc S -- Lee, Jaehuk -- Kingsley, Charles V -- Sananikone, Eliot F -- Rajapakshe, Kimal -- Naff, Katherine -- Parker-Thornburg, Jan -- Bankson, James A -- Tsai, Kenneth Y -- Gunaratne, Preethi H -- Flores, Elsa R -- CA-16672/CA/NCI NIH HHS/ -- P30 CA016672/CA/NCI NIH HHS/ -- P50CA136411/CA/NCI NIH HHS/ -- R01 CA134796/CA/NCI NIH HHS/ -- R01 CA160394/CA/NCI NIH HHS/ -- R01CA134796/CA/NCI NIH HHS/ -- R01CA160394/CA/NCI NIH HHS/ -- England -- Nature. 2015 Jan 29;517(7536):626-30. doi: 10.1038/nature13910. Epub 2014 Nov 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Molecular and Cellular Oncology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [2] Department of Translational Molecular Pathology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [3] Graduate School of Biomedical Sciences, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [4] Metastasis Research Center, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. ; 1] Department of Molecular and Cellular Oncology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [2] Department of Translational Molecular Pathology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. ; Department of Veterinary Medicine and Surgery, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. ; Department of Molecular and Cellular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, Texas 77030, USA. ; 1] Department of Molecular and Cellular Oncology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [2] Department of Translational Molecular Pathology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [3] Metastasis Research Center, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. ; 1] Department of Molecular and Cellular Oncology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [2] Department of Translational Molecular Pathology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [3] Metastasis Research Center, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [4] Radiation Biology &Health Sciences Division, Bhabha Atomic Research Center, Mumbai 400085, India. ; Department of Imaging Physics, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. ; Department of Genetics, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. ; 1] Department of Translational Molecular Pathology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA [2] Department of Dermatology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. ; Department of Biology and Biochemistry, University of Houston, Houston, Texas 77204, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25409149" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Line, Tumor ; Cell Transformation, Neoplastic/genetics/pathology ; DNA-Binding Proteins/genetics/metabolism ; Female ; Genes, Tumor Suppressor ; Humans ; Islet Amyloid Polypeptide/*metabolism/pharmacology/secretion/therapeutic use ; Lymphoma/drug therapy/genetics/*metabolism/*pathology ; Male ; Mice ; Nuclear Proteins/genetics/metabolism ; Phosphoproteins/genetics/metabolism ; Receptor Activity-Modifying Protein 3/metabolism ; Receptors, Calcitonin/metabolism ; Thymus Gland/metabolism/pathology ; Trans-Activators/genetics/metabolism ; Tumor Suppressor Protein p53/*deficiency/genetics ; Tumor Suppressor Proteins/genetics/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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  • 92
    Publikationsdatum: 2014-11-11
    Beschreibung: Lung diseases such as chronic obstructive pulmonary disease and pulmonary fibrosis involve the progressive and inexorable destruction of oxygen exchange surfaces and airways, and have emerged as a leading cause of death worldwide. Mitigating therapies, aside from impractical organ transplantation, remain limited and the possibility of regenerative medicine has lacked empirical support. However, it is clinically known that patients who survive sudden, massive loss of lung tissue from necrotizing pneumonia or acute respiratory distress syndrome often recover full pulmonary function within six months. Correspondingly, we recently demonstrated lung regeneration in mice following H1N1 influenza virus infection, and linked distal airway stem cells expressing Trp63 (p63) and keratin 5, called DASC(p63/Krt5), to this process. Here we show that pre-existing, intrinsically committed DASC(p63/Krt5) undergo a proliferative expansion in response to influenza-induced lung damage, and assemble into nascent alveoli at sites of interstitial lung inflammation. We also show that the selective ablation of DASC(p63/Krt5) in vivo prevents this regeneration, leading to pre-fibrotic lesions and deficient oxygen exchange. Finally, we demonstrate that single DASC(p63/Krt5)-derived pedigrees differentiate to type I and type II pneumocytes as well as bronchiolar secretory cells following transplantation to infected lung and also minimize the structural consequences of endogenous stem cell loss on this process. The ability to propagate these cells in culture while maintaining their intrinsic lineage commitment suggests their potential in stem cell-based therapies for acute and chronic lung diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zuo, Wei -- Zhang, Ting -- Wu, Daniel Zheng'An -- Guan, Shou Ping -- Liew, Audrey-Ann -- Yamamoto, Yusuke -- Wang, Xia -- Lim, Siew Joo -- Vincent, Matthew -- Lessard, Mark -- Crum, Christopher P -- Xian, Wa -- McKeon, Frank -- England -- Nature. 2015 Jan 29;517(7536):616-20. doi: 10.1038/nature13903. Epub 2014 Nov 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genome Institute of Singapore, A-STAR, 138672 Singapore. ; The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut 06032, USA. ; Advanced Cell Technologies, Marlborough, Massachusetts 01752, USA. ; The Jackson Laboratory, Bar Harbor, Maine 04609, USA. ; Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Genome Institute of Singapore, A-STAR, 138672 Singapore [2] The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut 06032, USA [3] Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA [4] Department of Medicine, National University Health System, 119228 Singapore [5] Department of Genetics and Developmental Biology, University of Connecticut Health Center, Farmington, Connecticut 06030, USA. ; 1] Genome Institute of Singapore, A-STAR, 138672 Singapore [2] The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut 06032, USA [3] Department of Medicine, National University Health System, 119228 Singapore.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25383540" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Bronchioles/cytology/virology ; Cell Differentiation ; Cell Lineage ; Cell Proliferation ; Dogs ; Humans ; Influenza A Virus, H1N1 Subtype/pathogenicity ; Keratin-5/*metabolism ; Lung/*cytology/pathology/*physiology/virology ; Madin Darby Canine Kidney Cells ; Mice ; Orthomyxoviridae Infections/metabolism/pathology/virology ; Oxygen/metabolism ; Pedigree ; Phosphoproteins/*metabolism ; Pneumonia/metabolism/pathology/virology ; Pulmonary Alveoli/cytology/pathology/virology ; Re-Epithelialization ; *Regeneration ; Stem Cell Transplantation ; Stem Cells/*cytology/*metabolism ; Trans-Activators/*metabolism
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    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 93
    Publikationsdatum: 2014-11-11
    Beschreibung: DNA methylation is an important epigenetic modification that is essential for various developmental processes through regulating gene expression, genomic imprinting, and epigenetic inheritance. Mammalian genomic DNA methylation is established during embryogenesis by de novo DNA methyltransferases, DNMT3A and DNMT3B, and the methylation patterns vary with developmental stages and cell types. DNA methyltransferase 3-like protein (DNMT3L) is a catalytically inactive paralogue of DNMT3 enzymes, which stimulates the enzymatic activity of Dnmt3a. Recent studies have established a connection between DNA methylation and histone modifications, and revealed a histone-guided mechanism for the establishment of DNA methylation. The ATRX-DNMT3-DNMT3L (ADD) domain of Dnmt3a recognizes unmethylated histone H3 (H3K4me0). The histone H3 tail stimulates the enzymatic activity of Dnmt3a in vitro, whereas the molecular mechanism remains elusive. Here we show that DNMT3A exists in an autoinhibitory form and that the histone H3 tail stimulates its activity in a DNMT3L-independent manner. We determine the crystal structures of DNMT3A-DNMT3L (autoinhibitory form) and DNMT3A-DNMT3L-H3 (active form) complexes at 3.82 and 2.90 A resolution, respectively. Structural and biochemical analyses indicate that the ADD domain of DNMT3A interacts with and inhibits enzymatic activity of the catalytic domain (CD) through blocking its DNA-binding affinity. Histone H3 (but not H3K4me3) disrupts ADD-CD interaction, induces a large movement of the ADD domain, and thus releases the autoinhibition of DNMT3A. The finding adds another layer of regulation of DNA methylation to ensure that the enzyme is mainly activated at proper targeting loci when unmethylated H3K4 is present, and strongly supports a negative correlation between H3K4me3 and DNA methylation across the mammalian genome. Our study provides a new insight into an unexpected autoinhibition and histone H3-induced activation of the de novo DNA methyltransferase after its initial genomic positioning.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guo, Xue -- Wang, Ling -- Li, Jie -- Ding, Zhanyu -- Xiao, Jianxiong -- Yin, Xiaotong -- He, Shuang -- Shi, Pan -- Dong, Liping -- Li, Guohong -- Tian, Changlin -- Wang, Jiawei -- Cong, Yao -- Xu, Yanhui -- England -- Nature. 2015 Jan 29;517(7536):640-4. doi: 10.1038/nature13899. Epub 2014 Nov 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Fudan University Shanghai Cancer Center, Institute of Biomedical Sciences, Shanghai Medical College of Fudan University, Shanghai 200032, China [2] State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China. ; Fudan University Shanghai Cancer Center, Institute of Biomedical Sciences, Shanghai Medical College of Fudan University, Shanghai 200032, China. ; National Center for Protein Science Shanghai, State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China. ; 1] High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China [2] National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, Hefei 230026, China [3] School of Life Sciences, University of Science and Technology of China, Hefei 230026, China. ; 1] National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Science, Beijing 100101, China [2] University of Chinese Academy of Science, Beijing 100049, China. ; National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Science, Beijing 100101, China. ; State Key Laboratory of Biomembrane and Membrane Biotechnology, School of Life Sciences, Tsinghua University, Beijing 100084, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25383530" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Catalytic Domain ; Crystallography, X-Ray ; DNA/metabolism ; DNA (Cytosine-5-)-Methyltransferase/*antagonists & ; inhibitors/*chemistry/*metabolism ; DNA Methylation ; Enzyme Activation ; Histones/*chemistry/*metabolism ; Humans ; Mice ; Models, Molecular ; Protein Structure, Tertiary ; Xenopus laevis
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 94
    Publikationsdatum: 2014-12-04
    Beschreibung: Filamentous actin (F-actin) is the major protein of muscle thin filaments, and actin microfilaments are the main component of the eukaryotic cytoskeleton. Mutations in different actin isoforms lead to early-onset autosomal dominant non-syndromic hearing loss, familial thoracic aortic aneurysms and dissections, and multiple variations of myopathies. In striated muscle fibres, the binding of myosin motors to actin filaments is mainly regulated by tropomyosin and troponin. Tropomyosin also binds to F-actin in smooth muscle and in non-muscle cells and stabilizes and regulates the filaments there in the absence of troponin. Although crystal structures for monomeric actin (G-actin) are available, a high-resolution structure of F-actin is still missing, hampering our understanding of how disease-causing mutations affect the function of thin muscle filaments and microfilaments. Here we report the three-dimensional structure of F-actin at a resolution of 3.7 A in complex with tropomyosin at a resolution of 6.5 A, determined by electron cryomicroscopy. The structure reveals that the D-loop is ordered and acts as a central region for hydrophobic and electrostatic interactions that stabilize the F-actin filament. We clearly identify map density corresponding to ADP and Mg(2+) and explain the possible effect of prominent disease-causing mutants. A comparison of F-actin with G-actin reveals the conformational changes during filament formation and identifies the D-loop as their key mediator. We also confirm that negatively charged tropomyosin interacts with a positively charged groove on F-actin. Comparison of the position of tropomyosin in F-actin-tropomyosin with its position in our previously determined F-actin-tropomyosin-myosin structure reveals a myosin-induced transition of tropomyosin. Our results allow us to understand the role of individual mutations in the genesis of actin- and tropomyosin-related diseases and will serve as a strong foundation for the targeted development of drugs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4477711/" 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/PMC4477711/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉von der Ecken, Julian -- Muller, Mirco -- Lehman, William -- Manstein, Dietmar J -- Penczek, Pawel A -- Raunser, Stefan -- R01 60635/PHS HHS/ -- R01 GM060635/GM/NIGMS NIH HHS/ -- R37HL036153/HL/NHLBI NIH HHS/ -- U54 094598/PHS HHS/ -- U54 GM094598/GM/NIGMS NIH HHS/ -- England -- Nature. 2015 Mar 5;519(7541):114-7. doi: 10.1038/nature14033. Epub 2014 Dec 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Biochemistry, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany. ; Institute for Biophysical Chemistry, Hannover Medical School, 30625 Hannover, Germany. ; Department of Physiology and Biophysics, Boston University School of Medicine, Boston, Massachusetts 02118, USA. ; Department of Biochemistry and Molecular Biology, The University of Texas, Houston Medical School, Houston, Texas 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25470062" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Actins/*chemistry/genetics/*metabolism ; Adenosine Diphosphate/metabolism ; Animals ; Cryoelectron Microscopy ; Magnesium/metabolism ; Mice ; Models, Molecular ; Mutation/genetics ; Protein Conformation ; Rabbits ; Static Electricity ; Tropomyosin/*chemistry/genetics/*metabolism
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    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 95
    Publikationsdatum: 2014-11-05
    Beschreibung: Establishing the hippocampal cellular ensemble that represents an animal's environment involves the emergence and disappearance of place fields in specific CA1 pyramidal neurons, and the acquisition of different spatial firing properties across the active population. While such firing flexibility and diversity have been linked to spatial memory, attention and task performance, the cellular and network origin of these place cell features is unknown. Basic integrate-and-fire models of place firing propose that such features result solely from varying inputs to place cells, but recent studies suggest instead that place cells themselves may play an active role through regenerative dendritic events. However, owing to the difficulty of performing functional recordings from place cell dendrites, no direct evidence of regenerative dendritic events exists, leaving any possible connection to place coding unknown. Using multi-plane two-photon calcium imaging of CA1 place cell somata, axons and dendrites in mice navigating a virtual environment, here we show that regenerative dendritic events do exist in place cells of behaving mice, and, surprisingly, their prevalence throughout the arbour is highly spatiotemporally variable. Furthermore, we show that the prevalence of such events predicts the spatial precision and persistence or disappearance of place fields. This suggests that the dynamics of spiking throughout the dendritic arbour may play a key role in forming the hippocampal representation of space.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4289090/" 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/PMC4289090/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sheffield, Mark E J -- Dombeck, Daniel A -- 1R01MH101297/MH/NIMH NIH HHS/ -- R01 MH101297/MH/NIMH NIH HHS/ -- England -- Nature. 2015 Jan 8;517(7533):200-4. doi: 10.1038/nature13871. Epub 2014 Oct 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Northwestern University, Evanston, Illinois 60208, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25363782" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Action Potentials ; Animals ; Axons/metabolism ; Calcium/*metabolism ; *Calcium Signaling ; Dendrites/*metabolism ; Hippocampus/*cytology/*physiology ; Male ; Memory, Long-Term/physiology ; Mice ; Mice, Inbred C57BL ; Neuronal Plasticity/physiology ; Space Perception/*physiology ; Time Factors
    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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  • 96
    Publikationsdatum: 2014-12-04
    Beschreibung: Cytotoxic chemotherapy is effective in debulking tumour masses initially; however, in some patients tumours become progressively unresponsive after multiple treatment cycles. Previous studies have demonstrated that cancer stem cells (CSCs) are selectively enriched after chemotherapy through enhanced survival. Here we reveal a new mechanism by which bladder CSCs actively contribute to therapeutic resistance via an unexpected proliferative response to repopulate residual tumours between chemotherapy cycles, using human bladder cancer xenografts. Further analyses demonstrate the recruitment of a quiescent label-retaining pool of CSCs into cell division in response to chemotherapy-induced damages, similar to mobilization of normal stem cells during wound repair. While chemotherapy effectively induces apoptosis, associated prostaglandin E2 (PGE2) release paradoxically promotes neighbouring CSC repopulation. This repopulation can be abrogated by a PGE2-neutralizing antibody and celecoxib drug-mediated blockade of PGE2 signalling. In vivo administration of the cyclooxygenase-2 (COX2) inhibitor celecoxib effectively abolishes a PGE2- and COX2-mediated wound response gene signature, and attenuates progressive manifestation of chemoresistance in xenograft tumours, including primary xenografts derived from a patient who was resistant to chemotherapy. Collectively, these findings uncover a new underlying mechanism that models the progressive development of clinical chemoresistance, and implicate an adjunctive therapy to enhance chemotherapeutic response of bladder urothelial carcinomas by abrogating early tumour repopulation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4465385/" 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/PMC4465385/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kurtova, Antonina V -- Xiao, Jing -- Mo, Qianxing -- Pazhanisamy, Senthil -- Krasnow, Ross -- Lerner, Seth P -- Chen, Fengju -- Roh, Terrence T -- Lay, Erica -- Ho, Philip Levy -- Chan, Keith Syson -- AI036211/AI/NIAID NIH HHS/ -- CA125123/CA/NCI NIH HHS/ -- CA129640/CA/NCI NIH HHS/ -- CA175397/CA/NCI NIH HHS/ -- R00 CA129640/CA/NCI NIH HHS/ -- R01 CA175397/CA/NCI NIH HHS/ -- RR024574/RR/NCRR NIH HHS/ -- England -- Nature. 2015 Jan 8;517(7533):209-13. doi: 10.1038/nature14034. Epub 2014 Dec 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Molecular &Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA [2] Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA. ; Department of Molecular &Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA. ; Dan L Duncan Cancer Center and Center for Cell Gene &Therapy, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA. ; Scott Department of Urology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA. ; 1] Department of Molecular &Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA [2] Summer Medical and Research Training (SMART) Program, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA. ; 1] Department of Molecular &Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA [2] Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA [3] Dan L Duncan Cancer Center and Center for Cell Gene &Therapy, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA [4] Scott Department of Urology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25470039" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies, Neutralizing/immunology/pharmacology ; Apoptosis/drug effects ; Celecoxib ; Cell Proliferation/drug effects ; Cyclooxygenase 2/metabolism ; Cyclooxygenase 2 Inhibitors/pharmacology ; Dinoprostone/*antagonists & inhibitors/immunology/metabolism/secretion ; Drug Resistance, Neoplasm/*drug effects ; Female ; Humans ; Male ; Mice ; Neoplastic Stem Cells/*drug effects/metabolism/*pathology ; Pyrazoles/pharmacology ; Signal Transduction/drug effects ; Sulfonamides/pharmacology ; Urinary Bladder Neoplasms/*drug therapy/*pathology ; Wound Healing/genetics ; Xenograft Model Antitumor Assays
    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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  • 97
    facet.materialart.
    Unbekannt
    Nature Publishing Group (NPG)
    Publikationsdatum: 2014-12-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tannock, Ian F -- England -- Nature. 2015 Jan 8;517(7533):152-3. doi: 10.1038/nature14075. Epub 2014 Dec 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Oncology, Princess Margaret Cancer Centre, Toronto, Ontario M5G 2M9, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25470047" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Dinoprostone/*antagonists & inhibitors ; Drug Resistance, Neoplasm/*drug effects ; Female ; Humans ; Male ; Neoplastic Stem Cells/*drug effects/*pathology ; Urinary Bladder Neoplasms/*drug therapy/*pathology
    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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  • 98
    Publikationsdatum: 2005-12-03
    Beschreibung: Macrophages and dendritic cells (DCs) are crucial for immune and inflammatory responses and belong to a network of cells that has been termed the mononuclear phagocyte system (MPS). However, the origin and lineage of these cells remain poorly understood. Here, we describe the isolation and clonal analysis of a mouse bone marrow progenitor that is specific for monocytes, several macrophage subsets, and resident spleen DCs in vivo. It was also possible to recapitulate this differentiation in vitro by using treatment with the cytokines macrophage colony-stimulating factor and granulocyte-macrophage colony-stimulating factor. Thus, macrophages and DCs appear to renew from a common progenitor, providing a cellular and molecular basis for the concept of the MPS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fogg, Darin K -- Sibon, Claire -- Miled, Chaouki -- Jung, Steffen -- Aucouturier, Pierre -- Littman, Dan R -- Cumano, Ana -- Geissmann, Frederic -- A133856/PHS HHS/ -- G0900867/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2006 Jan 6;311(5757):83-7. Epub 2005 Dec 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM, Laboratory of Mononuclear Phagocyte Biology, Avenir Team, Necker Enfants Malades Institute, 75015 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16322423" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Differentiation ; Cell Lineage ; Cell Separation ; Clone Cells ; Colony-Stimulating Factors/pharmacology ; Dendritic Cells/*cytology ; Flow Cytometry ; Granulocyte Colony-Stimulating Factor/pharmacology ; Hematopoietic Stem Cell Transplantation ; Macrophage Colony-Stimulating Factor/pharmacology ; Macrophages/*cytology ; Mice ; Mice, Inbred C57BL ; Myeloid Progenitor Cells/*cytology/immunology ; Proto-Oncogene Proteins c-kit/analysis ; Receptors, Cytokine/analysis ; Receptors, HIV/analysis ; Recombinant Proteins ; Spleen/cytology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 99
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2014-03-08
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gregersen, Peter K -- New York, N.Y. -- Science. 2014 Mar 7;343(6175):1087-8. doi: 10.1126/science.1251426.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Robert S. Boas Center for Genomics and Human Genetics, The Feinstein Institute for Medical Research, North Shore LIJ Health System, 350 Community Drive, Manhasset, NY 110430, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24604188" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Crohn Disease/*genetics ; Dendritic Cells/*immunology ; Female ; Gene Expression Regulation/*immunology ; *Gene-Environment Interaction ; *Genetic Predisposition to Disease ; Host-Pathogen Interactions/*genetics ; Humans ; Immunity, Innate/*genetics ; Interferon Regulatory Factor-7/*genetics ; Male ; Monocytes/*immunology ; STAT Transcription Factors/*genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 100
    Publikationsdatum: 2014-08-26
    Beschreibung: Aging-associated cognitive decline is affected by factors produced inside and outside the brain. By using multiorgan genome-wide analysis of aged mice, we found that the choroid plexus, an interface between the brain and the circulation, shows a type I interferon (IFN-I)-dependent gene expression profile that was also found in aged human brains. In aged mice, this response was induced by brain-derived signals, present in the cerebrospinal fluid. Blocking IFN-I signaling within the aged brain partially restored cognitive function and hippocampal neurogenesis and reestablished IFN-II-dependent choroid plexus activity, which is lost in aging. Our data identify a chronic aging-induced IFN-I signature, often associated with antiviral response, at the brain's choroid plexus and demonstrate its negative influence on brain function, thereby suggesting a target for ameliorating cognitive decline in aging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baruch, Kuti -- Deczkowska, Aleksandra -- David, Eyal -- Castellano, Joseph M -- Miller, Omer -- Kertser, Alexander -- Berkutzki, Tamara -- Barnett-Itzhaki, Zohar -- Bezalel, Dana -- Wyss-Coray, Tony -- Amit, Ido -- Schwartz, Michal -- AG045034/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2014 Oct 3;346(6205):89-93. doi: 10.1126/science.1252945. Epub 2014 Aug 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel. ; Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel. ; Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA. ; Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel. michal.schwartz@weizmann.ac.il ido.amit@weizmann.ac.il. ; Department of Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel. michal.schwartz@weizmann.ac.il ido.amit@weizmann.ac.il.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25147279" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aging/genetics/*pathology ; Animals ; Brain/*physiology ; Choroid Plexus/*metabolism ; *Cognition ; *Gene Expression Regulation ; Hippocampus/cytology ; Interferon Regulatory Factors/*genetics ; Interferon Type I/*physiology ; Mice ; Mice, Transgenic ; Neurogenesis ; Receptors, Interferon/genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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