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  • Aerodynamics  (189)
  • Mice  (189)
  • 1995-1999  (378)
  • 1999  (378)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Meccanica 34 (1999), S. 199-229 
    ISSN: 1572-9648
    Keywords: Aerodynamics ; Kutta condition ; Edge singularities ; Boundary integral equations ; Fluid dynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract This review paper presents a unified formulation of the Kutta condition for steady and unsteady flows, implemented by removing all unbounded velocity singularities (of power‐law and logarithmic type) at the trailing edge, and including nonlinear wakes and thick swept‐back wings. A suitable boundary integral approach is adopted and the uniqueness issue is discussed for several wing configurations of interest in aerodynamics. Sommario. Si presenta una formulazione unificata della condizione di Kutta per flussi stazionari e non stazionari, ottenuta imponendo la limitatezza della velocità al bordo d'uscita, e valida nel caso nonlineare anche per ali a freccia. Si utilizza un opportuno approccio integrale al contorno e si discute il problema dell'unicità per svariate configurazioni alari di interesse nelle applicazioni.
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-01-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, C -- Erbisch, F -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):33-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9917260" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biotechnology ; Mice ; Mice, Transgenic ; *Patents as Topic ; Plants, Genetically Modified/*genetics ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-05-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hagmann, M -- New York, N.Y. -- Science. 1999 Apr 30;284(5415):723, 725.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10336390" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Breast Neoplasms/*genetics/pathology ; *Disease Models, Animal ; Female ; *Genes, BRCA1 ; Genes, p53 ; Humans ; Mammary Glands, Animal/pathology ; Mammary Neoplasms, Animal/*genetics/pathology ; Mice ; Mice, Knockout ; Mice, Transgenic ; Mutation
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1826-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610569" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/cytology ; Cell Differentiation ; Cell Survival ; Embryo, Mammalian ; Mice ; Neurons/cytology ; Oligodendroglia/cytology ; Rats ; Spinal Cord/cytology/*physiology ; Spinal Cord Injuries/*therapy ; *Stem Cell Transplantation ; Stem Cells/cytology
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  • 5
    Publication Date: 1999-10-03
    Description: Precursors of alpha-defensin peptides require activation for bactericidal activity. In mouse small intestine, matrilysin colocalized with alpha-defensins (cryptdins) in Paneth cell granules, and in vitro it cleaved the pro segment from cryptdin precursors. Matrilysin-deficient (MAT-/-) mice lacked mature cryptdins and accumulated precursor molecules. Intestinal peptide preparations from MAT-/- mice had decreased antimicrobial activity. Orally administered bacteria survived in greater numbers and were more virulent in MAT-/- mice than in MAT+/+ mice. Thus, matrilysin functions in intestinal mucosal defense by regulating the activity of defensins, which may be a common role for this metalloproteinase in its numerous epithelial sites of expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, C L -- Ouellette, A J -- Satchell, D P -- Ayabe, T -- Lopez-Boado, Y S -- Stratman, J L -- Hultgren, S J -- Matrisian, L M -- Parks, W C -- New York, N.Y. -- Science. 1999 Oct 1;286(5437):113-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Division of Allergy and Pulmonary Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA. wilson_c@kids.wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10506557" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Catalysis ; Cytoplasmic Granules/enzymology ; Escherichia coli/growth & development ; Escherichia coli Infections/immunology/microbiology ; Female ; Humans ; *Immunity, Innate ; *Immunity, Mucosal ; Intestinal Mucosa/enzymology/immunology/microbiology ; Intestine, Small/enzymology/*immunology/microbiology ; Male ; Matrix Metalloproteinase 7 ; Metalloendopeptidases/genetics/*metabolism ; Mice ; Molecular Sequence Data ; Paneth Cells/enzymology ; Protein Precursors/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Salmonella typhimurium/growth & development/pathogenicity ; Tissue Extracts/pharmacology
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, I A -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1867-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. wilson@scripps.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610577" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens/*chemistry/immunology/metabolism ; Binding Sites ; CD4-Positive T-Lymphocytes/immunology/metabolism ; CD8-Positive T-Lymphocytes/immunology/metabolism ; Crystallography, X-Ray ; Histocompatibility Antigens Class I/chemistry/immunology/metabolism ; Histocompatibility Antigens Class II/*chemistry/immunology/metabolism ; Mice ; Models, Molecular ; Peptides/chemistry/immunology/metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Receptors, Antigen, T-Cell, alpha-beta/*chemistry/immunology/metabolism
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  • 7
    Publication Date: 1999-12-11
    Description: Natural antibodies are often dismissed from immunological analysis as "background," but they may play an important role in conferring immunity against infections. In antibody-free mice infected with various viruses or with Listeria monocytogenes, viral or bacterial titers in peripheral organs, including the kidney and brain, were 10 to 100 times greater than in antibody-competent mice (and enhanced their susceptibility to some infections), and titers in secondary lymphoid organs were 10 to 100 times lower than in antibody-competent mice. Thus, natural antibodies play a crucial role by preventing pathogen dissemination to vital organs and by improving immunogenicity through enhanced antigen-trapping in secondary lymphoid organs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ochsenbein, A F -- Fehr, T -- Lutz, C -- Suter, M -- Brombacher, F -- Hengartner, H -- Zinkernagel, R M -- New York, N.Y. -- Science. 1999 Dec 10;286(5447):2156-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Experimental Immunology, University Hospital Zurich, Schmelzbergstrasse 12, 8091 Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10591647" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Bacterial/blood/immunology ; Antibodies, Viral/blood/immunology ; Bacterial Infections/*immunology/microbiology ; Germ-Free Life ; *Immunity, Innate ; Immunoglobulin M/blood/*immunology ; Kidney/microbiology/virology ; Listeria monocytogenes/immunology/physiology ; Listeriosis/immunology ; Lymphocytic choriomeningitis virus/immunology/physiology ; Lymphoid Tissue/immunology/microbiology/virology ; Mice ; Mice, Inbred C57BL ; Neutralization Tests ; Rhabdoviridae Infections/immunology/virology ; Specific Pathogen-Free Organisms ; Spleen/microbiology/virology ; Vaccinia virus/immunology/physiology ; Vesicular stomatitis Indiana virus/immunology/physiology ; Virus Diseases/*immunology/virology ; Virus Replication
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  • 8
    Publication Date: 1999-10-09
    Description: CD2-associated protein (CD2AP) is an 80-kilodalton protein that is critical for stabilizing contacts between T cells and antigen-presenting cells. In CD2AP-deficient mice, immune function was compromised, but the mice died at 6 to 7 weeks of age from renal failure. In the kidney, CD2AP was expressed primarily in glomerular epithelial cells. Knockout mice exhibited defects in epithelial cell foot processes, accompanied by mesangial cell hyperplasia and extracellular matrix deposition. Supporting a role for CD2AP in the specialized cell junction known as the slit diaphragm, CD2AP associated with nephrin, the primary component of the slit diaphragm.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shih, N Y -- Li, J -- Karpitskii, V -- Nguyen, A -- Dustin, M L -- Kanagawa, O -- Miner, J H -- Shaw, A S -- New York, N.Y. -- Science. 1999 Oct 8;286(5438):312-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Immunology and Department of Pathology, Washington University, Saint Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10514378" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Animals ; Basement Membrane/ultrastructure ; Cytoskeletal Proteins ; Epithelial Cells/metabolism/ultrastructure ; Extracellular Matrix Proteins/metabolism ; Glomerular Mesangium/metabolism/ultrastructure ; Intercellular Junctions/metabolism/ultrastructure ; Kidney Glomerulus/blood supply/*metabolism/*ultrastructure ; Lymphocyte Activation ; Membrane Proteins ; Mice ; Mice, Knockout ; Microscopy, Electron ; Nephrotic Syndrome/*congenital/genetics/metabolism/pathology ; Proteins/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; T-Lymphocytes/immunology
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  • 9
    Publication Date: 1999-11-05
    Description: Glutamatergic neurotransmission is controlled by presynaptic metabotropic glutamate receptors (mGluRs). A subdomain in the intracellular carboxyl-terminal tail of group III mGluRs binds calmodulin and heterotrimeric guanosine triphosphate-binding protein (G protein) betagamma subunits in a mutually exclusive manner. Mutations interfering with calmodulin binding and calmodulin antagonists inhibit G protein-mediated modulation of ionic currents by mGluR 7. Calmodulin antagonists also prevent inhibition of excitatory neurotransmission via presynaptic mGluRs. These results reveal a novel mechanism of presynaptic modulation in which Ca(2+)-calmodulin is required to release G protein betagamma subunits from the C-tail of group III mGluRs in order to mediate glutamatergic autoinhibition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Connor, V -- El Far, O -- Bofill-Cardona, E -- Nanoff, C -- Freissmuth, M -- Karschin, A -- Airas, J M -- Betz, H -- Boehm, S -- New York, N.Y. -- Science. 1999 Nov 5;286(5442):1180-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurochemistry, Max Planck Institute for Brain Research, Deutschordenstrasse 46, 60528 Frankfurt, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10550060" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcium/metabolism ; Calmodulin/antagonists & inhibitors/*metabolism ; Cells, Cultured ; Dimerization ; G Protein-Coupled Inwardly-Rectifying Potassium Channels ; GTP-Binding Proteins/*metabolism ; Glutamic Acid/*metabolism ; Hippocampus/cytology/metabolism ; Humans ; Mice ; Molecular Sequence Data ; Neurons/metabolism ; Potassium Channels/metabolism ; *Potassium Channels, Inwardly Rectifying ; Presynaptic Terminals/metabolism ; Propionates/pharmacology ; Rats ; Rats, Sprague-Dawley ; Receptors, Metabotropic Glutamate/antagonists & inhibitors/*metabolism ; Recombinant Fusion Proteins/metabolism ; Sesterterpenes ; Signal Transduction ; Swine ; *Synaptic Transmission ; Terpenes/pharmacology
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  • 10
    Publication Date: 1999-02-26
    Description: Chlamydia infections are epidemiologically linked to human heart disease. A peptide from the murine heart muscle-specific alpha myosin heavy chain that has sequence homology to the 60-kilodalton cysteine-rich outer membrane proteins of Chlamydia pneumoniae, C. psittaci, and C. trachomatis was shown to induce autoimmune inflammatory heart disease in mice. Injection of the homologous Chlamydia peptides into mice also induced perivascular inflammation, fibrotic changes, and blood vessel occlusion in the heart, as well as triggering T and B cell reactivity to the homologous endogenous heart muscle-specific peptide. Chlamydia DNA functioned as an adjuvant in the triggering of peptide-induced inflammatory heart disease. Infection with C. trachomatis led to the production of autoantibodies to heart muscle-specific epitopes. Thus, Chlamydia-mediated heart disease is induced by antigenic mimicry of a heart muscle-specific protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bachmaier, K -- Neu, N -- de la Maza, L M -- Pal, S -- Hessel, A -- Penninger, J M -- New York, N.Y. -- Science. 1999 Feb 26;283(5406):1335-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Amgen Institute, Ontario Cancer Institute, Departments of Medical Biophysics and 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/10037605" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Amino Acid Sequence ; Animals ; Antigens, Bacterial/chemistry/immunology ; Autoantibodies/biosynthesis ; Autoimmune Diseases/immunology/*microbiology/pathology ; B-Lymphocytes/immunology ; Bacterial Outer Membrane Proteins/chemistry/*immunology ; CD4-Positive T-Lymphocytes/immunology ; Chlamydia/*immunology ; Chlamydia Infections/complications/*immunology ; Chlamydia trachomatis/immunology ; CpG Islands ; Humans ; Immunization ; Lymphocyte Activation ; Mice ; Mice, Inbred BALB C ; *Molecular Mimicry ; Molecular Sequence Data ; Myocarditis/immunology/*microbiology/pathology ; Myocardium/immunology/pathology ; Myosin Heavy Chains/chemistry/*immunology ; Oligodeoxyribonucleotides/immunology ; Sequence Homology, Amino Acid
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  • 11
    Publication Date: 1999-05-29
    Description: Endoglin is a transforming growth factor-beta (TGF-beta) binding protein expressed on the surface of endothelial cells. Loss-of-function mutations in the human endoglin gene ENG cause hereditary hemorrhagic telangiectasia (HHT1), a disease characterized by vascular malformations. Here it is shown that by gestational day 11.5, mice lacking endoglin die from defective vascular development. However, in contrast to mice lacking TGF-beta, vasculogenesis was unaffected. Loss of endoglin caused poor vascular smooth muscle development and arrested endothelial remodeling. These results demonstrate that endoglin is essential for angiogenesis and suggest a pathogenic mechanism for HHT1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, D Y -- Sorensen, L K -- Brooke, B S -- Urness, L D -- Davis, E C -- Taylor, D G -- Boak, B B -- Wendel, D P -- K08 HL03490-03/HL/NHLBI NIH HHS/ -- T35 HL07744-06/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1999 May 28;284(5419):1534-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Human Molecular Biology and Genetics, Department of Human Genetics, Howard Hughes Medical Institute, University of Utah, Salt Lake City, UT 84112-5330, USA. dean.li@hci.utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10348742" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD ; Antigens, CD31/analysis ; Blood Vessels/cytology/*embryology/metabolism ; Cell Differentiation ; Crosses, Genetic ; Endothelium, Vascular/cytology/*embryology/metabolism ; Female ; Gene Targeting ; In Situ Hybridization ; Male ; Mice ; Mice, Inbred C57BL ; Microscopy, Electron ; Muscle, Smooth, Vascular/cytology/*embryology ; *Neovascularization, Physiologic ; Receptors, Cell Surface ; Signal Transduction ; Transforming Growth Factor beta/metabolism ; Vascular Cell Adhesion Molecule-1/genetics/*physiology ; Yolk Sac/ultrastructure
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  • 12
    Publication Date: 1999-07-20
    Description: Graft versus host disease, an alloimmune attack on host tissues mounted by donor T cells, is the most important toxicity of allogeneic bone marrow transplantation. The mechanism by which allogeneic T cells are initially stimulated is unknown. In a murine allogeneic bone marrow transplantation model it was found that, despite the presence of numerous donor antigen-presenting cells, only host-derived antigen-presenting cells initiated graft versus host disease. Thus, strategies for preventing graft versus host disease could be developed that are based on inactivating host antigen-presenting cells. Such strategies could expand the safety and application of allogeneic bone marrow transplantation in treatment of common genetic and neoplastic diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shlomchik, W D -- Couzens, M S -- Tang, C B -- McNiff, J -- Robert, M E -- Liu, J -- Shlomchik, M J -- Emerson, S G -- P50HL-54516/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 16;285(5426):412-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10411505" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Presenting Cells/*immunology ; Bone Marrow Transplantation/adverse effects/*immunology ; CD8-Positive T-Lymphocytes/*immunology ; Dendritic Cells/immunology ; Graft vs Host Disease/immunology/*prevention & control ; H-2 Antigens/immunology ; Lymph Nodes/immunology ; Mice ; Mice, Inbred C3H ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Mice, Knockout ; Minor Histocompatibility Antigens/immunology ; Spleen/immunology ; Transplantation Chimera
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  • 13
    Publication Date: 1999-04-09
    Description: Imprinted genes display parent-of-origin-dependent monoallelic expression that apparently regulates complex mammalian traits, including growth and behavior. The Peg3 gene is expressed in embryos and the adult brain from the paternal allele only. A mutation in the Peg3 gene resulted in growth retardation, as well as a striking impairment of maternal behavior that frequently resulted in death of the offspring. This result may be partly due to defective neuronal connectivity, as well as reduced oxytocin neurons in the hypothalamus, because mutant mothers were deficient in milk ejection. This study provides further insights on the evolution of epigenetic regulation of imprinted gene dosage in modulating mammalian growth and behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, L -- Keverne, E B -- Aparicio, S A -- Ishino, F -- Barton, S C -- Surani, M A -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):330-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome CRC Institute of Cancer and Developmental Biology, and Physiological Laboratory, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10195900" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Brain/metabolism ; Crosses, Genetic ; Female ; Gene Expression ; Gene Targeting ; *Genomic Imprinting ; *Growth ; Hypothalamus/cytology/metabolism ; Kruppel-Like Transcription Factors ; Lactation ; Male ; *Maternal Behavior ; Mice ; Mutation ; Neural Pathways ; Neurons/metabolism ; Oxytocin/metabolism ; Phenotype ; *Protein Kinases ; Proteins/genetics/*physiology ; *Transcription Factors ; *Weight Gain
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-04-24
    Description: Retroviral DNA integration is catalyzed by the viral protein integrase. Here, it is shown that DNA-dependent protein kinase (DNA-PK), a host cell protein, also participates in the reaction. DNA-PK-deficient murine scid cells infected with three different retroviruses showed a substantial reduction in retroviral DNA integration and died by apoptosis. Scid cell killing was not observed after infection with an integrase-defective virus, suggesting that abortive integration is the trigger for death in these DNA repair-deficient cells. These results suggest that the initial events in retroviral integration are detected as DNA damage by the host cell and that completion of the integration process requires the DNA-PK-mediated repair pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Daniel, R -- Katz, R A -- Skalka, A M -- AI40721/AI/NIAID NIH HHS/ -- AI40835/AI/NIAID NIH HHS/ -- CA71515/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Apr 23;284(5414):644-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Cancer Research, Fox Chase Cancer Center, 7701 Burholme Avenue, Philadelphia, PA 19111, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10213687" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; CHO Cells ; Cell Survival ; Cells, Cultured ; Cricetinae ; DNA Damage ; *DNA Repair ; DNA, Viral/*genetics/metabolism ; DNA-Activated Protein Kinase ; *DNA-Binding Proteins ; Genetic Vectors ; HIV-1/genetics ; Integrases/genetics/metabolism ; Mice ; Mutation ; Protein-Serine-Threonine Kinases/*metabolism ; Retroviridae/*genetics/physiology ; *Virus Integration ; Virus Replication
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  • 15
    Publication Date: 1999-07-31
    Description: Many immune receptors are composed of separate ligand-binding and signal-transducing subunits. In natural killer (NK) and T cells, DAP10 was identified as a cell surface adaptor protein in an activating receptor complex with NKG2D, a receptor for the stress-inducible and tumor-associated major histocompatibility complex molecule MICA. Within the DAP10 cytoplasmic domain, an Src homology 2 (SH2) domain-binding site was capable of recruiting the p85 subunit of the phosphatidylinositol 3-kinase (PI 3-kinase), providing for NKG2D-dependent signal transduction. Thus, NKG2D-DAP10 receptor complexes may activate NK and T cell responses against MICA-bearing tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, J -- Song, Y -- Bakker, A B -- Bauer, S -- Spies, T -- Lanier, L L -- Phillips, J H -- AI30581/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):730-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DNAX Research Institute, 901 California Avenue, Palo Alto, CA 94304, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10426994" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Cell Line ; Cytotoxicity, Immunologic ; Humans ; Killer Cells, Natural/*immunology/metabolism ; Ligands ; *Lymphocyte Activation ; Membrane Proteins/chemistry/genetics/*metabolism ; Mice ; Molecular Sequence Data ; NK Cell Lectin-Like Receptor Subfamily K ; Neoplasms/immunology ; Phosphatidylinositol 3-Kinases/metabolism ; Phosphorylation ; Phosphotyrosine/metabolism ; Receptors, Immunologic/chemistry/genetics/*metabolism ; Receptors, Natural Killer Cell ; Signal Transduction ; T-Lymphocytes/*immunology/metabolism ; Tumor Cells, Cultured ; src Homology Domains
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  • 16
    Publication Date: 1999-07-03
    Description: Lymphocyte development is critically influenced by self-antigens. T cells are subject to both positive and negative selection, depending on their degree of self-reactivity. Although B cells are subject to negative selection, it has been difficult to test whether self-antigen plays any positive role in B cell development. A murine model system of naturally generated autoreactive B cells with a germ line gene-encoded specificity for the Thy-1 (CD90) glycoprotein was developed, in which the presence of self-antigen promotes B cell accumulation and serum autoantibody secretion. Thus, B cells can be subject to positive selection, generated, and maintained on the basis of their autoreactivity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hayakawa, K -- Asano, M -- Shinton, S A -- Gui, M -- Allman, D -- Stewart, C L -- Silver, J -- Hardy, R R -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):113-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Cancer Research, Fox Chase Cancer Center, 7701 Burholme Avenue, Philadelphia, PA 19111, USA. K_Hayakawa@fccc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10390361" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/immunology ; Animals ; Antigens, CD5/analysis ; Antigens, Thy-1/*immunology ; Autoantibodies/*biosynthesis/blood/immunology ; Autoantigens/*immunology ; B-Lymphocyte Subsets/*immunology ; Genes, Immunoglobulin ; Hybridomas ; Immunity, Innate ; Immunologic Surveillance ; Mice ; Mice, SCID ; Mice, Transgenic ; Receptors, Antigen, B-Cell/immunology ; Signal Transduction ; T-Lymphocytes/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
    Publication Date: 1999-04-09
    Description: Phosphorylation of inhibitor of kappa B (IkappaB) proteins is an important step in the activation of the transcription nuclear factor kappa B (NF-kappaB) and requires two IkappaB kinases, IKK1 (IKKalpha) and IKK2 (IKKbeta). Mice that are devoid of the IKK2 gene had extensive liver damage from apoptosis and died as embryos, but these mice could be rescued by the inactivation of the gene encoding tumor necrosis factor receptor 1. Mouse embryonic fibroblast cells that were isolated from IKK2-/- embryos showed a marked reduction in tumor necrosis factor-alpha (TNF-alpha)- and interleukin-1alpha-induced NF-kappaB activity and an enhanced apoptosis in response to TNF-alpha. IKK1 associated with NF-kappaB essential modulator (IKKgamma/IKKAP1), another component of the IKK complex. These results show that IKK2 is essential for mouse development and cannot be substituted with IKK1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Q -- Van Antwerp, D -- Mercurio, F -- Lee, K F -- Verma, I M -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):321-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Salk Institute, La Jolla, CA 92037, USA. Signal Pharmaceuticals, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10195897" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Cell Line ; DNA-Binding Proteins/metabolism ; Embryonic and Fetal Development ; Gene Targeting ; I-kappa B Kinase ; I-kappa B Proteins ; Interleukin-1/pharmacology ; Liver/cytology/*embryology ; Mice ; NF-kappa B/metabolism ; Phosphorylation ; Polymerase Chain Reaction ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Receptors, Tumor Necrosis Factor/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Sequence Deletion ; Signal Transduction ; Transcription Factor RelA ; Transcription Factors/metabolism ; Tumor Necrosis Factor-alpha/pharmacology
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  • 18
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-03-12
    Description: A central question in immunology is the origin of long-lived T cell memory that confers protection against recurrent infection. The differentiation of naive T cell receptor transgenic CD8+ cells into effector cytotoxic T lymphocytes (CTLs) and memory CD8+ cells was studied. Memory CD8+ cells that were generated after strong antigenic stimulation were the progeny of cytotoxic effectors and retained antigen-specific cytolytic activity 10 weeks after adoptive transfer to antigen-free recipient mice. Thus, potential vaccines based on CTL memory will require the differentiation of naive cells into post-effector memory T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Opferman, J T -- Ober, B T -- Ashton-Rickardt, P G -- 5T32 AI07090/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 Mar 12;283(5408):1745-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Committee on Immunology, Department of Pathology, Committee on Developmental Biology, The University of Chicago, Gwen Knapp Center for Lupus and Immunology Research, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10073942" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; Apoptosis ; CD8-Positive T-Lymphocytes/*cytology/*immunology ; Cell Differentiation ; Cell Division ; Cell Lineage ; Cells, Cultured ; Cytotoxicity, Immunologic ; Dose-Response Relationship, Immunologic ; H-Y Antigen/immunology ; *Immunologic Memory ; Lymphocyte Activation ; Membrane Glycoproteins/metabolism ; Mice ; Mice, Transgenic ; Perforin ; Pore Forming Cytotoxic Proteins ; T-Lymphocyte Subsets/cytology/*immunology ; T-Lymphocytes, Cytotoxic/cytology/*immunology
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sikorski, R -- Peters, R -- New York, N.Y. -- Science. 1999 Nov 19;286(5444):1498.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610553" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Cells/*cytology ; Cell Differentiation ; Cell Separation ; Dystrophin/biosynthesis ; Female ; *Hematopoietic Stem Cell Transplantation ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred mdx ; Muscle, Skeletal/*cytology/metabolism ; *Stem Cell Transplantation ; Stem Cells/*cytology
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  • 20
    Publication Date: 1999-09-18
    Description: Antithrombin, a member of the serpin family, functions as an inhibitor of thrombin and other enzymes. Cleavage of the carboxyl-terminal loop of antithrombin induces a conformational change in the molecule. Here it is shown that the cleaved conformation of antithrombin has potent antiangiogenic and antitumor activity in mouse models. The latent form of intact antithrombin, which is similar in conformation to the cleaved molecule, also inhibited angiogenesis and tumor growth. These data provide further evidence that the clotting and fibrinolytic pathways are directly involved in the regulation of angiogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Reilly, M S -- Pirie-Shepherd, S -- Lane, W S -- Folkman, J -- P01-CA45548/CA/NCI NIH HHS/ -- R01-CA64481/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1999 Sep 17;285(5435):1926-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Surgery, Children's Hospital, Departments of Surgery and Cellular Biology, Harvard Microchemistry Facility, 16 Divinity Avenue, Cambridge, MA 02138, USA. oreilly@hub.tch.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10489375" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/chemistry/isolation & purification/metabolism/*pharmacology ; Antithrombins/chemistry/isolation & purification/metabolism/*pharmacology ; Carcinoma, Small Cell/blood supply/drug therapy ; Cell Line ; Culture Media, Conditioned ; Drug Screening Assays, Antitumor ; Humans ; Lung Neoplasms/blood supply/drug therapy ; Mice ; Mice, SCID ; Neoplasm Transplantation ; Neovascularization, Pathologic/*drug therapy ; Peptide Fragments/chemistry/metabolism/pharmacology ; Protein Conformation ; Tumor Cells, Cultured
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  • 21
    Publication Date: 1999-07-10
    Description: In the absence of disease, the vasculature of the mammalian eye is quiescent, in part because of the action of angiogenic inhibitors that prevent vessels from invading the cornea and vitreous. Here, an inhibitor responsible for the avascularity of these ocular compartments is identified as pigment epithelium-derived factor (PEDF), a protein previously shown to have neurotrophic activity. The amount of inhibitory PEDF produced by retinal cells was positively correlated with oxygen concentrations, suggesting that its loss plays a permissive role in ischemia-driven retinal neovascularization. These results suggest that PEDF may be of therapeutic use, especially in retinopathies where pathological neovascularization compromises vision and leads to blindness.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dawson, D W -- Volpert, O V -- Gillis, P -- Crawford, S E -- Xu, H -- Benedict, W -- Bouck, N P -- New York, N.Y. -- Science. 1999 Jul 9;285(5425):245-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology-Immunology, Department of Pathology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Medical School, Chicago, IL 60611, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10398599" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Antibodies/immunology ; Cattle ; Cells, Cultured ; Chemotaxis/drug effects ; Culture Media, Conditioned ; Endothelial Growth Factors/metabolism ; Endothelium, Vascular/cytology/drug effects/physiology ; Eye/blood supply ; *Eye Proteins ; Humans ; Lymphokines/metabolism ; Mice ; Neovascularization, Pathologic/*drug therapy/metabolism/pathology ; Neovascularization, Physiologic/*drug effects ; *Nerve Growth Factors ; Oxygen/physiology ; Proteins/genetics/immunology/*pharmacology/*physiology ; RNA, Messenger/genetics/metabolism ; Rats ; Retina/*metabolism/pathology ; Retinal Neovascularization/*drug therapy ; Retinal Vessels/growth & development ; Serpins/genetics/immunology/*pharmacology/*physiology ; Tumor Cells, Cultured ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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  • 22
    Publication Date: 1999-05-13
    Description: Salmonella typhimurium lacking DNA adenine methylase (Dam) were fully proficient in colonization of mucosal sites but showed severe defects in colonization of deeper tissue sites. These Dam- mutants were totally avirulent and were effective as live vaccines against murine typhoid fever. Dam regulated the expression of at least 20 genes known to be induced during infection; a subset of these genes are among those activated by the PhoP global virulence regulator. PhoP, in turn, affected Dam methylation at specific genomic sites, as evidenced by alterations in DNA methylation patterns. Dam inhibitors are likely to have broad antimicrobial action, and Dam- derivatives of these pathogens may serve as live attenuated vaccines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heithoff, D M -- Sinsheimer, R L -- Low, D A -- Mahan, M J -- AI23348/AI/NIAID NIH HHS/ -- AI36373/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 May 7;284(5416):967-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, CA 93106, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10320378" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine/metabolism ; Animals ; Bacterial Proteins/metabolism ; *Bacterial Vaccines ; *DNA Methylation ; DNA, Bacterial/metabolism ; Gene Expression Regulation, Bacterial ; Genes, Bacterial ; Lethal Dose 50 ; Methylation ; Mice ; Mice, Inbred BALB C ; Mutation ; Peyer's Patches/microbiology ; Salmonella Infections, Animal/immunology/*microbiology/prevention & control ; Salmonella typhimurium/*enzymology/genetics/immunology/*pathogenicity ; Site-Specific DNA-Methyltransferase (Adenine-Specific)/antagonists & ; inhibitors/genetics/*metabolism ; Vaccines, Attenuated ; Virulence/genetics
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  • 23
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dawson, G R -- Flint, J -- Wilkinson, L S -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2068; author reply 2069-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523201" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Laboratory/genetics ; *Behavior, Animal ; Confounding Factors (Epidemiology) ; Genetics, Behavioral/*methods ; Handling (Psychology) ; Mice ; Reproducibility of Results
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  • 24
    Publication Date: 1999-02-19
    Description: Microdeletions of chromosome 22q11 are the most common genetic defects associated with cardiac and craniofacial anomalies in humans. A screen for mouse genes dependent on dHAND, a transcription factor implicated in neural crest development, identified Ufd1, which maps to human 22q11 and encodes a protein involved in degradation of ubiquitinated proteins. Mouse Ufd1 was specifically expressed in most tissues affected in patients with 22q11 deletion syndrome. The human UFD1L gene was deleted in all 182 patients studied with 22q11 deletion, and a smaller deletion of approximately 20 kilobases that removed exons 1 to 3 of UFD1L was found in one individual with features typical of 22q11 deletion syndrome. These data suggest that UFD1L haploinsufficiency contributes to the congenital heart and craniofacial defects seen in 22q11 deletion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamagishi, H -- Garg, V -- Matsuoka, R -- Thomas, T -- Srivastava, D -- R01HL57181-01/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1999 Feb 19;283(5405):1158-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Division of Cardiology, University of Texas Southwestern Medical Center, 6000 Harry Hines Boulevard, Room NA8.124, Dallas, TX 75235-9148, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10024240" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aorta, Thoracic/abnormalities/embryology/metabolism ; Basic Helix-Loop-Helix Transcription Factors ; Cell Cycle Proteins/genetics ; Chromosomes, Human, Pair 22/*genetics ; Craniofacial Abnormalities/*genetics ; DNA-Binding Proteins/genetics/physiology ; Embryo, Mammalian/metabolism ; *Gene Deletion ; Gene Expression Regulation, Developmental ; Heart/embryology ; Heart Defects, Congenital/*genetics ; Humans ; Mice ; Neural Crest/cytology/embryology ; Phenotype ; Proteins/*genetics/physiology ; Transcription Factors/genetics/physiology ; Ubiquitins/metabolism ; Zebrafish Proteins
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  • 25
    Publication Date: 1999-11-13
    Description: The p42 and p44 mitogen-activated protein kinases (MAPKs), also called Erk2 and Erk1, respectively, have been implicated in proliferation as well as in differentiation programs. The specific role of the p44 MAPK isoform in the whole animal was evaluated by generation of p44 MAPK-deficient mice by homologous recombination in embryonic stem cells. The p44 MAPK-/- mice were viable, fertile, and of normal size. Thus, p44 MAPK is apparently dispensable and p42 MAPK (Erk2) may compensate for its loss. However, in p44 MAPK-/- mice, thymocyte maturation beyond the CD4+CD8+ stage was reduced by half, with a similar diminution in the thymocyte subpopulation expressing high levels of T cell receptor (CD3high). In p44 MAPK-/- thymocytes, proliferation in response to activation with a monoclonal antibody to the T cell receptor in the presence of phorbol myristate acetate was severely reduced even though activation of p42 MAPK was more sustained in these cells. The p44 MAPK apparently has a specific role in thymocyte development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pages, G -- Guerin, S -- Grall, D -- Bonino, F -- Smith, A -- Anjuere, F -- Auberger, P -- Pouyssegur, J -- New York, N.Y. -- Science. 1999 Nov 12;286(5443):1374-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Signaling, Developmental Biology and Cancer Research, CNRS UMR 6543, Centre A. Lacassagne, 33 Avenue de Valombrose, 06189 Nice, France. gpages@unice.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10558995" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal ; Antigens, CD/analysis ; Antigens, CD3/immunology ; Cell Differentiation ; Cell Division ; Cells, Cultured ; DNA/biosynthesis ; Enzyme Activation ; Gene Targeting ; Isoenzymes/genetics/metabolism ; Mice ; Mice, Knockout ; Mitogen-Activated Protein Kinase 1/metabolism ; Mitogen-Activated Protein Kinase 3 ; Mitogen-Activated Protein Kinases/deficiency/genetics/*metabolism ; Phosphorylation ; Polymorphism, Restriction Fragment Length ; Receptors, Antigen, T-Cell, alpha-beta/analysis/physiology ; T-Lymphocyte Subsets/*cytology/enzymology/immunology ; Tetradecanoylphorbol Acetate/pharmacology ; Thymus Gland/*cytology
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  • 26
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-09-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Helmuth, L -- New York, N.Y. -- Science. 1999 Aug 20;285(5431):1190-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10484726" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Estradiol/*pharmacology/toxicity ; *Genetic Variation ; Humans ; Litter Size ; Male ; Maximum Allowable Concentration ; Mice ; Mice, Inbred Strains ; Species Specificity ; Spermatogenesis/*drug effects ; Testis/*drug effects ; *Toxicity Tests
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  • 27
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hen, R -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2068-9; author reply 2069-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523202" target="_blank"〉PubMed〈/a〉
    Keywords: *Alcohol Drinking ; Animals ; Crosses, Genetic ; *Gene Frequency ; Mice ; Mice, Knockout/*genetics ; Receptor, Serotonin, 5-HT1B ; Receptors, Serotonin/genetics/*physiology ; Stem Cells
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, M -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):660-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577216" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/chemistry/physiology ; Dendritic Cells, Follicular/chemistry/physiology ; Gene Targeting ; Genetic Predisposition to Disease ; Humans ; Mice ; Mice, Transgenic ; Mutation ; Neurons/chemistry ; Prion Diseases/*etiology/genetics/therapy ; Prions/genetics/metabolism/*pathogenicity
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  • 29
    Publication Date: 1999
    Description: Stable delivery of a therapeutic protein under pharmacologic control was achieved through in vivo somatic gene transfer. This system was based on the expression of two chimeric, human-derived proteins that were reconstituted by rapamycin into a transcription factor complex. A mixture of two adeno-associated virus vectors, one expressing the transcription factor chimeras and one containing erythropoietin (Epo) under the control of a promoter responsive to the transcription factor, was injected into skeletal muscle of immune-competent mice. Administration of rapamycin resulted in 200-fold induction of plasma Epo. Stable engraftment of this humanized system in immune-competent mice was achieved for 6 months with similar results for at least 3 months in a rhesus monkey.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ye, X -- Rivera, V M -- Zoltick, P -- Cerasoli, F Jr -- Schnell, M A -- Gao, G -- Hughes, J V -- Gilman, M -- Wilson, J M -- P01 AR/NS43648-03/AR/NIAMS NIH HHS/ -- P30 DK47757-05/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):88-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Human Gene Therapy, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9872748" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cytomegalovirus/genetics ; Dependovirus/genetics ; Erythropoietin/administration & dosage/blood/*genetics ; Female ; Gene Expression Regulation ; *Gene Transfer Techniques ; Genetic Therapy/*methods ; Genetic Vectors ; Hematocrit ; Injections, Intramuscular ; Macaca mulatta ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Muscle, Skeletal ; Promoter Regions, Genetic ; Recombinant Fusion Proteins ; Recombinant Proteins ; Sirolimus/*pharmacology ; Transcription Factors/*genetics
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  • 30
    Publication Date: 1999-12-03
    Description: Linker proteins function as molecular scaffolds to localize enzymes with substrates. In B cells, B cell linker protein (BLNK) links the B cell receptor (BCR)-activated Syk kinase to the phosphoinositide and mitogen-activated kinase pathways. To examine the in vivo role of BLNK, mice deficient in BLNK were generated. B cell development in BLNK-/- mice was blocked at the transition from B220+CD43+ progenitor B to B220+CD43- precursor B cells. Only a small percentage of immunoglobulin M++ (IgM++), but not mature IgMloIgDhi, B cells were detected in the periphery. Hence, BLNK is an essential component of BCR signaling pathways and is required to promote B cell development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pappu, R -- Cheng, A M -- Li, B -- Gong, Q -- Chiu, C -- Griffin, N -- White, M -- Sleckman, B P -- Chan, A C -- AI42787/AI/NIAID NIH HHS/ -- CA71516/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1949-54.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Immunology, Division of Rheumatology, Department of Medicine, Howard Hughes Medical Institute, 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/10583957" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Aging ; Animals ; B-Lymphocyte Subsets/cytology/immunology ; B-Lymphocytes/*cytology/immunology/*metabolism ; Bone Marrow Cells/cytology/immunology ; Carrier Proteins/genetics/*physiology ; Cell Count ; Cell Differentiation ; Cell Separation ; Cell Size ; Flow Cytometry ; Gene Targeting ; Hematopoietic Stem Cells/*cytology/metabolism ; Immunoglobulin M/analysis ; Leukopoiesis ; Lymphoid Tissue/cytology/immunology ; Mice ; Mice, Inbred C57BL ; *Phosphoproteins ; Receptors, Antigen, B-Cell/*metabolism ; Second Messenger Systems ; Signal Transduction
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  • 31
    Publication Date: 1999-11-05
    Description: Focal adhesions (FAs) are clustered integrins and associated proteins that mediate cell adhesion and signaling. A green fluorescent protein-beta1 integrin chimera was used to label FAs in living cells. In stationary cells, FAs were highly motile, moving linearly for several plaque lengths toward the cell center. FA motility was independent of cell density and resulted from contraction of associated actin fibers. In migrating cells, FAs were stationary and only moved in the tail. FA motility in stationary cells suggests that cell movement may be regulated by a clutch-like mechanism by which the affinity of integrins to substrate may be altered in response to migratory cues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smilenov, L B -- Mikhailov, A -- Pelham, R J -- Marcantonio, E E -- Gundersen, G G -- GM42026/GM/NIGMS NIH HHS/ -- GM44585/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Nov 5;286(5442):1172-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Columbia University, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10550057" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Actins/physiology ; Animals ; Antigens, CD29/*metabolism ; *Cell Adhesion ; Cell Count ; Cell Line ; *Cell Movement ; Fibroblasts/*cytology/metabolism ; Fluorescence ; Green Fluorescent Proteins ; Luminescent Proteins ; Mice ; Microscopy, Interference ; Rats ; Recombinant Fusion Proteins/metabolism
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  • 32
    Publication Date: 1999-03-05
    Description: Protein tyrosine phosphatase-1B (PTP-1B) has been implicated in the negative regulation of insulin signaling. Disruption of the mouse homolog of the gene encoding PTP-1B yielded healthy mice that, in the fed state, had blood glucose concentrations that were slightly lower and concentrations of circulating insulin that were one-half those of their PTP-1B+/+ littermates. The enhanced insulin sensitivity of the PTP-1B-/- mice was also evident in glucose and insulin tolerance tests. The PTP-1B-/- mice showed increased phosphorylation of the insulin receptor in liver and muscle tissue after insulin injection in comparison to PTP-1B+/+ mice. On a high-fat diet, the PTP-1B-/- and PTP-1B+/- mice were resistant to weight gain and remained insulin sensitive, whereas the PTP-1B+/+ mice rapidly gained weight and became insulin resistant. These results demonstrate that PTP-1B has a major role in modulating both insulin sensitivity and fuel metabolism, thereby establishing it as a potential therapeutic target in the treatment of type 2 diabetes and obesity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elchebly, M -- Payette, P -- Michaliszyn, E -- Cromlish, W -- Collins, S -- Loy, A L -- Normandin, D -- Cheng, A -- Himms-Hagen, J -- Chan, C C -- Ramachandran, C -- Gresser, M J -- Tremblay, M L -- Kennedy, B P -- New York, N.Y. -- Science. 1999 Mar 5;283(5407):1544-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, McGill University, 3655 Drummond Street, Montreal, Quebec, Canada, H3G 1Y6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10066179" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/metabolism ; Diabetes Mellitus, Type 2/therapy ; Dietary Fats/administration & dosage ; Gene Targeting ; Glucose Tolerance Test ; Insulin/blood/*metabolism/pharmacology ; Insulin Receptor Substrate Proteins ; Insulin Resistance ; Liver/metabolism ; Male ; Mice ; Mice, Knockout ; Muscle, Skeletal/metabolism ; Obesity/*metabolism/therapy ; Phosphoproteins/metabolism ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein Tyrosine Phosphatases/*genetics/*metabolism ; Receptor, Insulin/metabolism ; Signal Transduction
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  • 33
    Publication Date: 1999-05-21
    Description: Bile acids regulate the transcription of genes that control cholesterol homeostasis through molecular mechanisms that are poorly understood. Physiological concentrations of free and conjugated chenodeoxycholic acid, lithocholic acid, and deoxycholic acid activated the farnesoid X receptor (FXR; NR1H4), an orphan nuclear receptor. As ligands, these bile acids and their conjugates modulated interaction of FXR with a peptide derived from steroid receptor coactivator 1. These results provide evidence for a nuclear bile acid signaling pathway that may regulate cholesterol homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parks, D J -- Blanchard, S G -- Bledsoe, R K -- Chandra, G -- Consler, T G -- Kliewer, S A -- Stimmel, J B -- Willson, T M -- Zavacki, A M -- Moore, D D -- Lehmann, J M -- F32 DK09793/DK/NIDDK NIH HHS/ -- R01 DK53366/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1999 May 21;284(5418):1365-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biochemistry, Glaxo Wellcome Research and Development, Research Triangle Park NC, 27709, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10334993" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bile Acids and Salts/chemistry/*metabolism/pharmacology ; Carrier Proteins/metabolism ; Cell Line ; Chenodeoxycholic Acid/*metabolism/pharmacology ; Cholesterol/metabolism ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; Deoxycholic Acid/metabolism/pharmacology ; Histone Acetyltransferases ; Homeostasis ; Humans ; Ligands ; Lithocholic Acid/metabolism/pharmacology ; Mice ; Nuclear Receptor Coactivator 1 ; *Organic Anion Transporters, Sodium-Dependent ; Protein Conformation ; Receptors, Cytoplasmic and Nuclear/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Structure-Activity Relationship ; *Symporters ; Transcription Factors/chemistry/genetics/*metabolism ; Transfection
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  • 34
    Publication Date: 1999-05-15
    Description: Glutamic acid decarboxylase (GAD) is a pancreatic beta cell autoantigen in humans and nonobese diabetic (NOD) mice. beta Cell-specific suppression of GAD expression in two lines of antisense GAD transgenic NOD mice prevented autoimmune diabetes, whereas persistent GAD expression in the beta cells in the other four lines of antisense GAD transgenic NOD mice resulted in diabetes, similar to that seen in transgene-negative NOD mice. Complete suppression of beta cell GAD expression blocked the generation of diabetogenic T cells and protected islet grafts from autoimmune injury. Thus, beta cell-specific GAD expression is required for the development of autoimmune diabetes in NOD mice, and modulation of GAD might, therefore, have therapeutic value in type 1 diabetes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoon, J W -- Yoon, C S -- Lim, H W -- Huang, Q Q -- Kang, Y -- Pyun, K H -- Hirasawa, K -- Sherwin, R S -- Jun, H S -- DK 45735/DK/NIDDK NIH HHS/ -- DK 53015-01/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1999 May 14;284(5417):1183-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Viral and Immunopathogenesis of Diabetes, Julia McFarlane Diabetes Research Centre, Faculty of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada. yoon@ucalgary.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10325232" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; Autoantigens/genetics/*immunology/physiology ; Autoimmunity ; DNA, Antisense ; Diabetes Mellitus, Type 1/*enzymology/*immunology/pathology ; Female ; Gene Expression ; Glutamate Decarboxylase/genetics/*immunology/physiology ; Insulin/blood/metabolism ; Islets of Langerhans/*enzymology/immunology/metabolism/pathology ; Islets of Langerhans Transplantation ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Mice, Transgenic ; T-Lymphocytes/immunology ; Transgenes
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  • 35
    Publication Date: 1999-04-09
    Description: The oligomeric IkappaB kinase (IKK) is composed of three polypeptides: IKKalpha and IKKbeta, the catalytic subunits, and IKKgamma, a regulatory subunit. IKKalpha and IKKbeta are similar in structure and thought to have similar function-phosphorylation of the IkappaB inhibitors in response to proinflammatory stimuli. Such phosphorylation leads to degradation of IkappaB and activation of nuclear factor kappaB transcription factors. The physiological function of these protein kinases was explored by analysis of IKKalpha-deficient mice. IKKalpha was not required for activation of IKK and degradation of IkappaB by proinflammatory stimuli. Instead, loss of IKKalpha interfered with multiple morphogenetic events, including limb and skeletal patterning and proliferation and differentiation of epidermal keratinocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hu, Y -- Baud, V -- Delhase, M -- Zhang, P -- Deerinck, T -- Ellisman, M -- Johnson, R -- Karin, M -- R01 AI43477/AI/NIAID NIH HHS/ -- R37 ES04151/ES/NIEHS NIH HHS/ -- RR04050/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):316-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Cancer Center, University of California San Diego, La Jolla, CA 92093-0636, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10195896" target="_blank"〉PubMed〈/a〉
    Keywords: Abnormalities, Multiple/enzymology/genetics ; Animals ; Apoptosis ; Body Patterning ; Bone and Bones/abnormalities/embryology ; Cell Differentiation ; Cell Nucleus/metabolism ; Cells, Cultured ; DNA-Binding Proteins/metabolism ; Dimerization ; *Embryonic and Fetal Development ; Enzyme Activation ; Epidermis/cytology/embryology ; Female ; Gene Targeting ; I-kappa B Kinase ; I-kappa B Proteins ; Keratinocytes ; Limb Deformities, Congenital/enzymology ; Male ; Mice ; *Morphogenesis ; Mutation ; Phosphorylation ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Skin/embryology ; Skin Abnormalities/enzymology
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  • 36
    Publication Date: 1999-07-27
    Description: Glycoprotein adhesion receptors such as selectins contribute to tissue injury in stroke. Ischemic neurons strongly expressed C1q, which may target them for complement-mediated attack or C1qRp-mediated clearance. A hybrid molecule was used to simultaneously inhibit both complement activation and selectin-mediated adhesion. The extracellular domain of soluble complement receptor-1 (sCR1) was sialyl Lewis x glycosylated (sCR1sLex) to inhibit complement activation and endothelial-platelet-leukocyte interactions. sCR1 and sCR1sLex colocalized to ischemic cerebral microvessels and C1q-expressing neurons, inhibited neutrophil and platelet accumulation, and reduced cerebral infarct volumes. Additional benefit was conferred by sialyl Lewis x glycosylation of the unmodified parent sCR1 molecule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, J -- Kim, L J -- Mealey, R -- Marsh, H C Jr -- Zhang, Y -- Tenner, A J -- Connolly, E S Jr -- Pinsky, D J -- R01 HL55397/HL/NHLBI NIH HHS/ -- R01 HL59488/HL/NHLBI NIH HHS/ -- R01 NS35144/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Jul 23;285(5427):595-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Columbia University, College of Physicians and Surgeons, 630 West 168th Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10417391" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Platelets/physiology ; Cell Adhesion ; Cerebral Cortex/blood supply/immunology/metabolism ; Cerebral Infarction/drug therapy ; Cerebrovascular Circulation ; Cerebrovascular Disorders/*drug therapy/immunology/physiopathology ; Complement Activation ; Complement C1q/metabolism ; Glycosylation ; Humans ; Ischemic Attack, Transient/*drug therapy/immunology/physiopathology ; Leukocytes/physiology ; Mice ; Neurons/immunology/metabolism ; Neuroprotective Agents/administration & dosage/adverse ; effects/metabolism/*therapeutic use ; Neutrophils/physiology ; Oligosaccharides/administration & dosage/adverse effects/metabolism/*therapeutic ; use ; Platelet Adhesiveness ; Receptors, Complement/administration & dosage/metabolism/*therapeutic use ; Reperfusion Injury/drug therapy/immunology/metabolism ; Selectins/metabolism ; Time Factors
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  • 37
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, M -- New York, N.Y. -- Science. 1999 Jun 4;284(5420):1599-600.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10383330" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Laboratory ; Anxiety ; *Behavior, Animal ; *Environment ; Genetics, Behavioral/*methods ; Mice ; Mice, Inbred Strains ; Mice, Mutant Strains ; Psychological Tests ; Reproducibility of Results
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  • 38
    Publication Date: 1999-01-23
    Description: Neuronal rhythmic activities within thalamocortical circuits range from partially synchronous oscillations during normal sleep to hypersynchrony associated with absence epilepsy. It has been proposed that recurrent inhibition within the thalamic reticular nucleus serves to reduce synchrony and thus prevents seizures. Inhibition and synchrony in slices from mice devoid of the gamma-aminobutyric acid type-A (GABAA) receptor beta3 subunit were examined, because in rodent thalamus, beta3 is largely restricted to reticular nucleus. In beta3 knockout mice, GABAA-mediated inhibition was nearly abolished in reticular nucleus, but was unaffected in relay cells. In addition, oscillatory synchrony was dramatically intensified. Thus, recurrent inhibitory connections within reticular nucleus act as "desynchronizers."〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huntsman, M M -- Porcello, D M -- Homanics, G E -- DeLorey, T M -- Huguenard, J R -- AA10422/AA/NIAAA NIH HHS/ -- NS06477/NS/NINDS NIH HHS/ -- NS34774/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Jan 22;283(5401):541-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology and Neurological Sciences, Stanford University Medical Center, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9915702" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; GABA Antagonists/pharmacology ; In Vitro Techniques ; Mice ; Mice, Knockout ; Nerve Net/*physiology ; *Neural Inhibition ; Neural Pathways/physiology ; Neurons/*physiology ; Patch-Clamp Techniques ; Picrotoxin/pharmacology ; Receptors, GABA-A/genetics/*physiology ; *Synaptic Transmission ; Thalamic Nuclei/physiology ; Thalamus/*physiology
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  • 39
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-04-09
    Description: Neuronal death induced by activating N-methyl-D-aspartate (NMDA) receptors has been linked to Ca2+ and Na+ influx through associated channels. Whole-cell recording from cultured mouse cortical neurons revealed a NMDA-evoked outward current, INMDA-K, carried by K+ efflux at membrane potentials positive to -86 millivolts. Cortical neurons exposed to NMDA in medium containing reduced Na+ and Ca2+ (as found in ischemic brain tissue) lost substantial intracellular K+ and underwent apoptosis. Both K+ loss and apoptosis were attenuated by increasing extracellular K+, even when voltage-gated Ca2+ channels were blocked. Thus NMDA receptor-mediated K+ efflux may contribute to neuronal apoptosis after brain ischemia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, S P -- Yeh, C -- Strasser, U -- Tian, M -- Choi, D W -- NS 30337/NS/NINDS NIH HHS/ -- NS 32636/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):336-9.〈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/10195902" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Calcium/metabolism/pharmacology ; Calcium Channels/metabolism ; Cells, Cultured ; Cerebral Cortex/*cytology/metabolism ; Culture Techniques ; Glutamic Acid/metabolism ; Ion Channel Gating ; Ion Transport ; Membrane Potentials ; Mice ; N-Methylaspartate/pharmacology ; Neocortex/cytology/embryology/metabolism ; Neurons/*cytology/metabolism ; Patch-Clamp Techniques ; Potassium/*metabolism ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Sodium/metabolism/pharmacology
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  • 40
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-10-16
    Description: The Mammalian Gene Collection (MGC) project is a new effort by the NIH to generate full-length complementary DNA (cDNA) resources. This project will provide publicly accessible resources to the full research community. The MGC project entails the production of libraries, sequencing, and database and repository development, as well as the support of library construction, sequencing, and analytic technologies dedicated to the goal of obtaining a full set of human and other mammalian full-length (open reading frame) sequences and clones of expressed genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strausberg, R L -- Feingold, E A -- Klausner, R D -- Collins, F S -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):455-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Cancer Institute, National Human Genome Research Institute, 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/10521335" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Computational Biology ; DNA, Complementary ; Databases, Factual ; Expressed Sequence Tags ; *Gene Library ; *Genome ; *Genome, Human ; Humans ; Mammals/*genetics ; Mice ; National Institutes of Health (U.S.) ; Private Sector ; Public Sector ; *Sequence Analysis, DNA ; United States
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  • 41
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, O -- New York, N.Y. -- Science. 1999 Nov 12;286(5443):1311.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610537" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cilia/*physiology ; Dyneins/genetics/physiology ; Embryo, Mammalian/*cytology ; *Embryonic and Fetal Development ; Mice ; Mice, Mutant Strains ; *Morphogenesis ; Movement ; Proteins/genetics/physiology ; *Transcription Factors
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  • 42
    Publication Date: 1999-05-13
    Description: Interleukin-12 (IL-12) and type 2 NO synthase (NOS2) are crucial for defense against bacterial and parasitic pathogens, but their relationship in innate immunity is unknown. In the absence of NOS2 activity, IL-12 was unable to prevent spreading of Leishmania parasites, did not stimulate natural killer (NK) cells for cytotoxicity or interferon-gamma (IFN-gamma) release, and failed to activate Tyk2 kinase and to tyrosine phosphorylate Stat4 (the central signal transducer of IL-12) in NK cells. Activation of Tyk2 in NK cells by IFN-alpha/beta also required NOS2. Thus, NOS2-derived NO is a prerequisite for cytokine signaling and function in innate immunity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Diefenbach, A -- Schindler, H -- Rollinghoff, M -- Yokoyama, W M -- Bogdan, C -- New York, N.Y. -- Science. 1999 May 7;284(5416):951-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Klinische Mikrobiologie, Immunologie und Hygiene, Universitat Erlangen, Wasserturmstrasse 3, D-91054 Erlangen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10320373" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Cyclic GMP/metabolism ; Cytotoxicity, Immunologic ; DNA-Binding Proteins/metabolism ; Enzyme Activation ; Enzyme Inhibitors/pharmacology ; Immunity, Innate ; Interferon-gamma/biosynthesis/genetics ; Interferons/pharmacology ; Interleukin-12/pharmacology/*physiology ; Janus Kinase 2 ; Killer Cells, Natural/*immunology/metabolism ; *Leishmania major ; Leishmaniasis, Cutaneous/*immunology/metabolism ; Lysine/analogs & derivatives/pharmacology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Nitric Oxide/metabolism ; Nitric Oxide Synthase/antagonists & inhibitors/*metabolism ; Nitric Oxide Synthase Type II ; Phosphorylation ; Protein-Tyrosine Kinases/metabolism ; Proteins/metabolism ; *Proto-Oncogene Proteins ; STAT4 Transcription Factor ; *Signal Transduction ; TYK2 Kinase ; Trans-Activators/metabolism ; Up-Regulation
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  • 43
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, O -- New York, N.Y. -- Science. 1999 Jun 4;284(5420):1634.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10383343" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chronic Disease ; Enkephalin, Methionine/biosynthesis/metabolism ; Enkephalins/*genetics ; Gene Transfer Techniques ; *Genetic Therapy ; Genetic Vectors ; Humans ; Mice ; *Pain Management ; Protein Precursors/*genetics ; Simplexvirus/genetics/physiology ; Spinal Cord/virology ; beta-Endorphin/biosynthesis/cerebrospinal fluid/*genetics
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  • 44
    Publication Date: 1999-06-12
    Description: Gene-targeted mice lacking the L-alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA) receptor subunit GluR-A exhibited normal development, life expectancy, and fine structure of neuronal dendrites and synapses. In hippocampal CA1 pyramidal neurons, GluR-A-/- mice showed a reduction in functional AMPA receptors, with the remaining receptors preferentially targeted to synapses. Thus, the CA1 soma-patch currents were strongly reduced, but glutamatergic synaptic currents were unaltered; and evoked dendritic and spinous Ca2+ transients, Ca2+-dependent gene activation, and hippocampal field potentials were as in the wild type. In adult GluR-A-/- mice, associative long-term potentiation (LTP) was absent in CA3 to CA1 synapses, but spatial learning in the water maze was not impaired. The results suggest that CA1 hippocampal LTP is controlled by the number or subunit composition of AMPA receptors and show a dichotomy between LTP in CA1 and acquisition of spatial memory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zamanillo, D -- Sprengel, R -- Hvalby, O -- Jensen, V -- Burnashev, N -- Rozov, A -- Kaiser, K M -- Koster, H J -- Borchardt, T -- Worley, P -- Lubke, J -- Frotscher, M -- Kelly, P H -- Sommer, B -- Andersen, P -- Seeburg, P H -- Sakmann, B -- New York, N.Y. -- Science. 1999 Jun 11;284(5421):1805-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Neuroscience, Max-Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10364547" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Bicuculline/pharmacology ; Calcium/metabolism ; Dendrites/physiology/ultrastructure ; GABA Antagonists/pharmacology ; Gene Expression ; Gene Targeting ; Genes, Immediate-Early ; Glutamic Acid/pharmacology/physiology ; Hippocampus/cytology/physiology ; Long-Term Potentiation/*physiology ; *Maze Learning ; Mice ; Mice, Inbred C57BL ; Pyramidal Cells/*physiology/ultrastructure ; Receptors, AMPA/genetics/*physiology ; Receptors, N-Methyl-D-Aspartate/physiology ; Synapses/*physiology/ultrastructure ; Synaptic Transmission
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  • 45
    Publication Date: 1999-02-05
    Description: Stem cell homing and repopulation are not well understood. The chemokine stromal cell-derived factor-1 (SDF-1) and its receptor CXCR4 were found to be critical for murine bone marrow engraftment by human severe combined immunodeficient (SCID) repopulating stem cells. Treatment of human cells with antibodies to CXCR4 prevented engraftment. In vitro CXCR4-dependent migration to SDF-1 of CD34+CD38-/low cells correlated with in vivo engraftment and stem cell function. Stem cell factor and interleukin-6 induced CXCR4 expression on CD34+ cells, which potentiated migration to SDF-1 and engraftment in primary and secondary transplanted mice. Thus, up-regulation of CXCR4 expression may be useful for improving engraftment of repopulating stem cells in clinical transplantation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peled, A -- Petit, I -- Kollet, O -- Magid, M -- Ponomaryov, T -- Byk, T -- Nagler, A -- Ben-Hur, H -- Many, A -- Shultz, L -- Lider, O -- Alon, R -- Zipori, D -- Lapidot, T -- A130389/PHS HHS/ -- New York, N.Y. -- Science. 1999 Feb 5;283(5403):845-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, The Weizmann Institute of Science, Rehovot 76100, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9933168" target="_blank"〉PubMed〈/a〉
    Keywords: ADP-ribosyl Cyclase ; Animals ; Antibodies ; *Antigens, CD ; Antigens, CD34/analysis/immunology ; Antigens, CD38 ; Antigens, Differentiation/analysis ; Chemokine CXCL12 ; Chemokines, CXC/pharmacology/*physiology ; Chemotaxis ; Colony-Forming Units Assay ; Fetal Blood ; Hematopoietic Stem Cell Mobilization ; *Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/*physiology ; Humans ; Interleukin-6/pharmacology ; Membrane Glycoproteins ; Mice ; Mice, Inbred NOD ; Mice, Knockout ; Mice, SCID ; NAD+ Nucleosidase/analysis ; Receptors, CXCR4/biosynthesis/immunology/*physiology ; Stem Cell Factor/pharmacology ; Tetradecanoylphorbol Acetate/pharmacology ; Up-Regulation
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  • 46
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, O -- New York, N.Y. -- Science. 1999 Apr 2;284(5411):61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10215531" target="_blank"〉PubMed〈/a〉
    Keywords: 2S Albumins, Plant ; Allergens/genetics/*immunology ; Anaphylaxis/*prevention & control/therapy ; Animals ; Antigens, Plant ; Arachis/*adverse effects/immunology ; Food Hypersensitivity/*prevention & control/therapy ; Glycoproteins/genetics/*immunology ; Humans ; Immunoglobulin A/blood ; Immunoglobulin E/blood ; Mice ; Plant Proteins ; T-Lymphocytes, Helper-Inducer/immunology ; *Vaccines, DNA/therapeutic use
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  • 47
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ferber, D -- New York, N.Y. -- Science. 1999 Sep 10;285(5434):1651, 1653.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523177" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/*adverse effects ; Apoptosis/*drug effects ; Benzothiazoles ; Cell Division/drug effects/radiation effects ; Cells, Cultured ; Drug Evaluation, Preclinical ; Gamma Rays/*adverse effects ; Humans ; Mice ; Neoplasms/drug therapy/radiotherapy/*therapy ; Radiation Dosage ; Radiation Tolerance/*drug effects ; Thiazoles/*pharmacology ; Toluene/*analogs & derivatives/pharmacology ; Tumor Suppressor Protein p53/*antagonists & inhibitors/physiology
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  • 48
    Publication Date: 1999-04-02
    Description: The ability of p53 to promote apoptosis in response to mitogenic oncogenes appears to be critical for its tumor suppressor function. Caspase-9 and its cofactor Apaf-1 were found to be essential downstream components of p53 in Myc-induced apoptosis. Like p53 null cells, mouse embryo fibroblast cells deficient in Apaf-1 and caspase-9, and expressing c-Myc, were resistant to apoptotic stimuli that mimic conditions in developing tumors. Inactivation of Apaf-1 or caspase-9 substituted for p53 loss in promoting the oncogenic transformation of Myc-expressing cells. These results imply a role for Apaf-1 and caspase-9 in controlling tumor development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soengas, M S -- Alarcon, R M -- Yoshida, H -- Giaccia, A J -- Hakem, R -- Mak, T W -- Lowe, S W -- CA13106/CA/NCI NIH HHS/ -- CA64489/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 2;284(5411):156-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10102818" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Apoptotic Protease-Activating Factor 1 ; Caspase 9 ; Caspases/genetics/*physiology ; Cell Division ; Cell Transformation, Neoplastic ; Cells, Cultured ; Cytochrome c Group/metabolism ; Genes, myc ; *Genes, p53 ; Genes, ras ; Mice ; Mice, Nude ; Mitochondria/metabolism ; Mutation ; Neoplasms, Experimental/genetics/metabolism/*pathology ; Proteins/genetics/*physiology ; Tumor Suppressor Protein p53/metabolism
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Solter, D -- Gearhart, J -- New York, N.Y. -- Science. 1999 Mar 5;283(5407):1468-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology, Max Planck Institute of Immunology, Freiburg, Germany. solter@immunbio.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10206877" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bioethics ; Blastocyst/*cytology ; *Cell Differentiation ; Cell Line ; Cells, Cultured ; Cloning, Organism ; Cytoplasm/physiology ; Embryo, Mammalian/cytology ; Humans ; Mice ; Nuclear Transfer Techniques ; Stem Cells/*cytology
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  • 50
    Publication Date: 1999-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tordoff, M G -- Bachmanov, A A -- Friedman, M I -- Beauchamp, G K -- R01 DC000882/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2069; author reply 2069-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523203" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Laboratory ; *Behavior, Animal ; *Diet ; Mice
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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-09-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ridley, R G -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1502-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Drug Discovery Research and the New Medicines for Malaria Venture, Special Programme for Research and Training in Tropical Diseases, World Health Organization, Geneva, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10498534" target="_blank"〉PubMed〈/a〉
    Keywords: Aldose-Ketose Isomerases/*antagonists & inhibitors/genetics/metabolism ; Animals ; Antimalarials/pharmacokinetics/*pharmacology ; Drug Design ; Enzyme Inhibitors/pharmacology ; Fosfomycin/analogs & derivatives/pharmacokinetics/pharmacology ; *Hemiterpenes ; Humans ; Malaria/*drug therapy/parasitology ; Malaria, Falciparum/drug therapy ; Mice ; Multienzyme Complexes/*antagonists & inhibitors/genetics/metabolism ; Organelles/drug effects/metabolism ; Organophosphorus Compounds/metabolism ; Oxidoreductases/*antagonists & inhibitors/genetics/metabolism ; Plasmodium falciparum/*drug effects/metabolism ; Steroids/metabolism ; Transferases/antagonists & inhibitors/genetics/metabolism
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  • 52
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-01-05
    Description: Whether a single major histocompatibility complex (MHC)-bound peptide can drive the positive selection of large numbers of T cells has been a controversial issue. A diverse population of self peptides was shown to be essential for the in vivo development of CD4 T cells. Mice in which all but 5 percent of MHC class II molecules were bound by a single peptide had wild-type numbers of CD4 T cells. However, when the diversity within this 5 percent was lost, CD4 T cell development was impaired. Blocking the major peptide-MHC complex in thymus organ culture had no effect on T cell development, indicating that positive selection occurred on the diverse peptides present at low levels. This requirement for peptide diversity indicates that the interaction between self peptides and T cell receptors during positive selection is highly specific.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barton, G M -- Rudensky, A Y -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):67-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cellular Biology Program of the University of Washington and Fred Hutchinson Cancer Research Center, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9872742" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; CD4-Positive T-Lymphocytes/cytology/*immunology/metabolism ; CD8-Positive T-Lymphocytes/cytology/immunology/metabolism ; Cells, Cultured ; Histocompatibility Antigens Class II/*immunology/metabolism ; Lymphocyte Activation ; Lymphocyte Culture Test, Mixed ; Mice ; Mice, Knockout ; Mice, Transgenic ; Peptides/*immunology/metabolism ; Receptors, Antigen, T-Cell/*immunology ; Recombinant Fusion Proteins/metabolism ; Spleen/immunology ; Thymus Gland/immunology
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  • 53
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-01-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sikorski, R -- Peters, R -- New York, N.Y. -- Science. 1998 Dec 18;282(5397):2213.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9890829" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Brain Tissue Transplantation ; Cell Differentiation ; Cell Line ; Cell Movement ; Cerebellum/cytology ; Cerebral Ventricles/cytology/embryology ; *Fetal Tissue Transplantation ; Humans ; Mice ; Neuroglia/cytology ; Neurons/cytology ; *Stem Cell Transplantation ; Stem Cells/cytology/enzymology ; beta-N-Acetylhexosaminidases/genetics
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  • 54
    Publication Date: 1999-01-15
    Description: The function of the central cannabinoid receptor (CB1) was investigated by invalidating its gene. Mutant mice did not respond to cannabinoid drugs, demonstrating the exclusive role of the CB1 receptor in mediating analgesia, reinforcement, hypothermia, hypolocomotion, and hypotension. The acute effects of opiates were unaffected, but the reinforcing properties of morphine and the severity of the withdrawal syndrome were strongly reduced. These observations suggest that the CB1 receptor is involved in the motivational properties of opiates and in the development of physical dependence and extend the concept of an interconnected role of CB1 and opiate receptors in the brain areas mediating addictive behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ledent, C -- Valverde, O -- Cossu, G -- Petitet, F -- Aubert, J F -- Beslot, F -- Bohme, G A -- Imperato, A -- Pedrazzini, T -- Roques, B P -- Vassart, G -- Fratta, W -- Parmentier, M -- New York, N.Y. -- Science. 1999 Jan 15;283(5400):401-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉IRIBHN, Universite libre de Bruxelles, B-1070 Brussels, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9888857" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics, Opioid/pharmacology ; Animals ; Behavior, Animal/drug effects ; Blood Pressure/drug effects ; Body Temperature/drug effects ; Cannabinoids/metabolism/*pharmacology ; Dronabinol/*pharmacology ; Heart Rate/drug effects ; Mice ; Mice, Knockout ; Morphine/pharmacology ; Motor Activity/drug effects ; Narcotics/*pharmacology ; Opioid-Related Disorders/*physiopathology ; Pain Threshold/drug effects ; Receptors, Cannabinoid ; Receptors, Drug/genetics/*physiology ; Receptors, Opioid, kappa/agonists/physiology ; Reinforcement (Psychology) ; Substance Withdrawal Syndrome/physiopathology
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-06-05
    Description: Strains of mice that show characteristic patterns of behavior are critical for research in neurobehavioral genetics. Possible confounding influences of the laboratory environment were studied in several inbred strains and one null mutant by simultaneous testing in three laboratories on a battery of six behaviors. Apparatus, test protocols, and many environmental variables were rigorously equated. Strains differed markedly in all behaviors, and despite standardization, there were systematic differences in behavior across labs. For some tests, the magnitude of genetic differences depended upon the specific testing lab. Thus, experiments characterizing mutants may yield results that are idiosyncratic to a particular laboratory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crabbe, J C -- Wahlsten, D -- Dudek, B C -- AA00170/AA/NIAAA NIH HHS/ -- AA10760/AA/NIAAA NIH HHS/ -- DA10731/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1999 Jun 4;284(5420):1670-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Portland Alcohol Research Center, Department of Veterans Affairs Medical Center, Portland, OR 97201, USA. crabbe@ohsu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10356397" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Laboratory/genetics ; Anxiety ; *Behavior, Animal ; Confounding Factors (Epidemiology) ; Drinking Behavior ; *Environment ; Female ; Genetics, Behavioral/*methods ; Genotype ; Male ; Mice ; Mice, Inbred Strains/genetics ; Mice, Mutant Strains/genetics ; Motor Activity ; Psychological Tests ; Reproducibility of Results
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  • 56
    Publication Date: 1999-08-28
    Description: The gene expression profile of the aging process was analyzed in skeletal muscle of mice. Use of high-density oligonucleotide arrays representing 6347 genes revealed that aging resulted in a differential gene expression pattern indicative of a marked stress response and lower expression of metabolic and biosynthetic genes. Most alterations were either completely or partially prevented by caloric restriction, the only intervention known to retard aging in mammals. Transcriptional patterns of calorie-restricted animals suggest that caloric restriction retards the aging process by causing a metabolic shift toward increased protein turnover and decreased macromolecular damage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, C K -- Klopp, R G -- Weindruch, R -- Prolla, T A -- P01 AG11915/AG/NIA NIH HHS/ -- R01 CA78723/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1999 Aug 27;285(5432):1390-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Environmental Toxicology Center, Institute on Aging, Department of Genetics, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10464095" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/*genetics ; Animals ; DNA Damage/genetics ; DNA Repair/genetics ; *Diet ; *Energy Intake ; Energy Metabolism/genetics ; *Gene Expression Regulation ; Male ; Mice ; Mice, Inbred C57BL ; Mitochondria, Muscle/metabolism ; Muscle, Skeletal/innervation/*metabolism ; Oligonucleotide Array Sequence Analysis ; Oxidative Stress/genetics ; Proteins/metabolism ; RNA, Messenger/genetics/metabolism
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Oct 8;286(5438):225-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577188" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Animals ; Cells, Cultured ; Chromosomes, Human, Pair 19/genetics ; Cytoskeletal Proteins ; Humans ; Intercellular Junctions/metabolism/ultrastructure ; Kidney Glomerulus/blood supply/chemistry/*metabolism/*ultrastructure ; Membrane Proteins ; Mice ; Mice, Knockout ; Microscopy, Electron ; Mutation ; Nephrotic Syndrome/congenital/genetics/pathology ; Proteins/chemistry/genetics/*metabolism
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  • 58
    Publication Date: 1999-10-26
    Description: The exuberant growth of neurites during development becomes markedly reduced as cortical neurons mature. In vitro studies of neurons from mouse cerebral cortex revealed that contact-mediated Notch signaling regulates the capacity of neurons to extend and elaborate neurites. Up-regulation of Notch activity was concomitant with an increase in the number of interneuronal contacts and cessation of neurite growth. In neurons with low Notch activity, which readily extend neurites, up-regulation of Notch activity either inhibited extension or caused retraction of neurites. Conversely, in more mature neurons that had ceased their growth after establishing numerous connections and displayed high Notch activity, inhibition of Notch signaling promoted neurite extension. Thus, the formation of neuronal contacts results in activation of Notch receptors, leading to restriction of neuronal growth and a subsequent arrest in maturity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sestan, N -- Artavanis-Tsakonas, S -- Rakic, P -- NS14841/NS/NINDS NIH HHS/ -- NS26084/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):741-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neurobiology, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10531053" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Communication ; Cell Count ; Cell Differentiation ; Cell Movement ; Cell Nucleus/metabolism ; Cell Size ; Cells, Cultured ; Cerebral Cortex/*cytology/embryology ; Contact Inhibition ; Humans ; Ligands ; Membrane Proteins/*metabolism ; Mice ; Mitosis ; Neurites/chemistry/*physiology ; Neurons/*cytology/metabolism ; Protein Structure, Tertiary ; Receptor, Notch1 ; Receptor, Notch2 ; Receptors, Cell Surface/*metabolism ; Signal Transduction ; *Transcription Factors ; Transcriptional Activation ; Up-Regulation
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  • 59
    Publication Date: 1999-02-12
    Description: Single particles of the mediator of transcriptional regulation (Mediator) and of RNA polymerase II holoenzyme were revealed by electron microscopy and image processing. Mediator alone appeared compact, but at high pH or in the presence of RNA polymerase II it displayed an extended conformation. Holoenzyme contained Mediator in a fully extended state, partially enveloping the globular polymerase, with points of apparent contact in the vicinity of the polymerase carboxyl-terminal domain and the DNA-binding channel. A similarity in appearance and conformational behavior of yeast and murine complexes indicates a conservation of Mediator structure among eukaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Asturias, F J -- Jiang, Y W -- Myers, L C -- Gustafsson, C M -- Kornberg, R D -- AI21144/AI/NIAID NIH HHS/ -- GM36659/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Feb 12;283(5404):985-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Biology, Fairchild Building, 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/9974391" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA-Directed RNA Polymerases/*chemistry/metabolism ; Fungal Proteins/*chemistry/metabolism ; Holoenzymes/chemistry/metabolism ; Hydrogen-Ion Concentration ; Mice ; Microscopy, Electron ; *Protein Conformation ; Protein Folding ; Temperature ; Trans-Activators/*chemistry/metabolism ; Transcription Factors/*chemistry/metabolism
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  • 60
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steel, K P -- New York, N.Y. -- Science. 1999 Aug 27;285(5432):1363-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Institute of Hearing Research, University Park, Nottingham NG7 2RD, UK. karen@ihr.mrc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10490411" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/genetics/metabolism ; Cochlea/metabolism ; Cochlear Duct/*metabolism/ultrastructure ; *DNA-Binding Proteins ; Deafness/genetics/*metabolism/pathology ; Endolymph/metabolism ; Evoked Potentials, Auditory, Brain Stem ; Extracellular Matrix Proteins ; Eye Proteins/genetics/metabolism ; Genetic Linkage ; Hair Cells, Auditory/cytology/physiology ; Humans ; Ion Transport ; *Membrane Transport Proteins ; Mice ; Mutation ; Nerve Tissue Proteins/genetics/metabolism ; POU Domain Factors ; Potassium/*metabolism ; Potassium Channels/genetics/metabolism ; Proteins/genetics/metabolism ; Transcription Factors/genetics/*metabolism ; X Chromosome
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  • 61
    Publication Date: 1999-07-20
    Description: A vertebrate securin (vSecurin) was identified on the basis of its biochemical analogy to the Pds1p protein of budding yeast and the Cut2p protein of fission yeast. The vSecurin protein bound to a vertebrate homolog of yeast separins Esp1p and Cut1p and was degraded by proteolysis mediated by an anaphase-promoting complex in a manner dependent on a destruction motif. Furthermore, expression of a stable Xenopus securin mutant protein blocked sister-chromatid separation but did not block the embryonic cell cycle. The vSecurin proteins share extensive sequence similarity with each other but show no sequence similarity to either of their yeast counterparts. Human securin is identical to the product of the gene called pituitary tumor-transforming gene (PTTG), which is overexpressed in some tumors and exhibits transforming activity in NIH 3T3 cells. The oncogenic nature of increased expression of vSecurin may result from chromosome gain or loss, produced by errors in chromatid separation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zou, H -- McGarry, T J -- Bernal, T -- Kirschner, M W -- GM26875/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 16;285(5426):418-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10411507" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; *Anaphase ; Anaphase-Promoting Complex-Cyclosome ; Animals ; CDC2 Protein Kinase/metabolism ; Cell Cycle Proteins/chemistry/metabolism ; *Cell Transformation, Neoplastic ; Chromatids/*physiology ; Conserved Sequence ; Cyclin B/metabolism ; Cyclin B1 ; *Endopeptidases ; Fungal Proteins/chemistry/metabolism ; HeLa Cells ; Humans ; Ligases/metabolism ; Mice ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Neoplasm Proteins/chemistry/genetics/*metabolism ; Neoplasms/etiology ; Nuclear Proteins/chemistry/metabolism ; Oncogene Proteins/chemistry/genetics/*metabolism ; Oncogenes ; *Saccharomyces cerevisiae Proteins ; *Schizosaccharomyces pombe Proteins ; Securin ; Separase ; Spindle Apparatus/metabolism ; *Ubiquitin-Protein Ligase Complexes ; Ubiquitin-Protein Ligases ; Xenopus
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  • 62
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-08-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steghaus-Kovac, S -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):650-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10454911" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bioethics ; Diffuse Cerebral Sclerosis of Schilder/*therapy ; Embryo, Mammalian/cytology ; Financing, Government ; Germany ; Humans ; Mice ; Myelin Sheath/*physiology ; Oligodendroglia/*cytology/physiology/transplantation ; Rats ; Research Support as Topic ; Spinal Cord ; Stem Cells/*cytology/physiology
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-06-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, M -- New York, N.Y. -- Science. 1999 May 7;284(5416):883.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10357664" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bacterial Vaccines/immunology ; Gene Expression Regulation, Bacterial ; *Genes, Bacterial ; Mice ; Salmonella Infections, Animal/immunology/microbiology/*prevention & control ; Salmonella typhimurium/enzymology/*genetics/immunology/pathogenicity ; Site-Specific DNA-Methyltransferase (Adenine-Specific)/antagonists & ; inhibitors/*genetics/metabolism ; Vaccines, Attenuated ; Virulence/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 64
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-09-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strauss, E -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1466-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10498525" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Membrane/*metabolism ; Cells, Cultured ; Drug Carriers ; *Drug Delivery Systems ; Gene Products, tat/chemistry/*metabolism ; Humans ; Mice ; Protein Denaturation ; Protein Folding ; Recombinant Fusion Proteins/administration & dosage/chemistry/*metabolism ; beta-Galactosidase/administration & dosage/chemistry/*metabolism
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  • 65
    Publication Date: 1999-02-19
    Description: Neurotrophins regulate survival, axonal growth, and target innervation of sensory and other neurons. Neurotrophin-3 (NT-3) is expressed specifically in cells adjacent to extending axons of dorsal root ganglia neurons, and its absence results in loss of most of these neurons before their axons reach their targets. However, axons are not required for NT-3 expression in limbs; instead, local signals from ectoderm induce NT-3 expression in adjacent mesenchyme. Wnt factors expressed in limb ectoderm induce NT-3 in the underlying mesenchyme. Thus, epithelial-mesenchymal interactions mediated by Wnt factors control NT-3 expression and may regulate axonal growth and guidance.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2710127/" 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/PMC2710127/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Patapoutian, A -- Backus, C -- Kispert, A -- Reichardt, L F -- MH48200/MH/NIMH NIH HHS/ -- P01 NS016033/NS/NINDS NIH HHS/ -- P01 NS016033-190014/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1999 Feb 19;283(5405):1180-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Howard Hughes Medical Institute, University of California, San Francisco, CA 94143-0723, USA. ardem@itsa.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10024246" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Coculture Techniques ; Ectoderm/metabolism/*physiology ; Embryo, Mammalian/metabolism ; Epithelium/metabolism ; Extremities/embryology/innervation ; Ganglia, Spinal/physiology ; *Gene Expression Regulation, Developmental ; *Glycoproteins ; Mesoderm/*metabolism ; Mice ; Motor Neurons/physiology ; Nerve Growth Factors/biosynthesis/*genetics ; Neurons, Afferent/physiology ; Neurotrophin 3 ; Organ Culture Techniques ; Proto-Oncogene Proteins/*physiology ; Signal Transduction ; Wnt Proteins ; Wnt4 Protein
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  • 66
    Publication Date: 1999-04-30
    Description: Solid tumors depend on angiogenesis for their growth. In a transgenic mouse model of pancreatic islet cell carcinogenesis (RIP1-Tag2), an angiogenic switch occurs in premalignant lesions, and angiogenesis persists during progression to expansive solid tumors and invasive carcinomas. RIP1-Tag2 mice were treated so as to compare the effects of four angiogenesis inhibitors at three distinct stages of disease progression. AGM-1470, angiostatin, BB-94, and endostatin each produced distinct efficacy profiles in trials aimed at preventing the angiogenic switch in premalignant lesions, intervening in the rapid expansion of small tumors, or inducing the regression of large end-stage cancers. Thus, anti-angiogenic drugs may prove most efficacious when they are targeted to specific stages of cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bergers, G -- Javaherian, K -- Lo, K M -- Folkman, J -- Hanahan, D -- New York, N.Y. -- Science. 1999 Apr 30;284(5415):808-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics and Hormone Research Institute, University of California, San Francisco, 513 Parnassus Ave, San Francisco, CA 94143-0534, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10221914" target="_blank"〉PubMed〈/a〉
    Keywords: Angiostatins ; Animals ; Anticarcinogenic Agents/pharmacology ; Antineoplastic Agents/*pharmacology ; Apoptosis ; Carcinoma, Islet Cell/blood supply/*drug therapy/pathology/prevention & control ; Collagen/pharmacology ; Cyclohexanes ; Disease Progression ; Drug Evaluation, Preclinical ; Endostatins ; Female ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Neoplasm Staging ; Neovascularization, Pathologic/*prevention & control ; Pancreatic Neoplasms/blood supply/*drug therapy/pathology/prevention & control ; Peptide Fragments/pharmacology ; Phenylalanine/analogs & derivatives/pharmacology ; Plasminogen/pharmacology ; Sesquiterpenes/pharmacology ; Thiophenes/pharmacology
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  • 67
    Publication Date: 1999-12-11
    Description: In vitro PA28 binds and activates proteasomes. It is shown here that mice with a disrupted PA28b gene lack PA28a and PA28b polypeptides, demonstrating that PA28 functions as a hetero-oligomer in vivo. Processing of antigenic epitopes derived from exogenous or endogenous antigens is altered in PA28-/- mice. Cytotoxic T lymphocyte responses are impaired, and assembly of immunoproteasomes is greatly inhibited in mice lacking PA28. These results show that PA28 is necessary for immunoproteasome assembly and is required for efficient antigen processing, thus demonstrating the importance of PA28-mediated proteasome function in immune responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Preckel, T -- Fung-Leung, W P -- Cai, Z -- Vitiello, A -- Salter-Cid, L -- Winqvist, O -- Wolfe, T G -- Von Herrath, M -- Angulo, A -- Ghazal, P -- Lee, J D -- Fourie, A M -- Wu, Y -- Pang, J -- Ngo, K -- Peterson, P A -- Fruh, K -- Yang, Y -- New York, N.Y. -- Science. 1999 Dec 10;286(5447):2162-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The R. W. Johnson Pharmaceutical Research Institute, 3210 Merryfield Row, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10591649" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; Autoantigens ; Cysteine Endopeptidases/chemistry/*metabolism ; Enzyme Activators/*metabolism ; Epitopes, T-Lymphocyte/immunology ; Female ; H-Y Antigen/immunology ; Herpesviridae Infections/immunology ; Histocompatibility Antigens Class I/immunology/metabolism ; Interferons/pharmacology ; Lymphocytic Choriomeningitis/immunology ; Lymphocytic choriomeningitis virus/immunology ; Male ; Mice ; Multienzyme Complexes/chemistry/*metabolism ; Muromegalovirus/immunology ; Ovalbumin/immunology ; Peptide Fragments/immunology ; Proteasome Endopeptidase Complex ; Proteins/genetics/*metabolism ; T-Lymphocytes, Cytotoxic/*immunology
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  • 68
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-02-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strauss, E -- New York, N.Y. -- Science. 1999 Jan 22;283(5401):471.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9988647" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Cells/*cytology ; Brain/*cytology/embryology ; Cell Separation ; Cell Transplantation ; Hematopoiesis ; Hematopoietic Stem Cells/*cytology ; Mice ; Stem Cell Transplantation ; Stem Cells/*cytology
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  • 69
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, J S -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2076-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Neurobiology and Physiology, Northwestern University, Evanston, IL 60208-3520, USA. j-takahashi@nwu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523205" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Circadian Rhythm ; Cloning, Molecular ; Dogs ; Homeostasis ; Hypothalamus/metabolism ; Ligands ; Mice ; Mice, Knockout ; Narcolepsy/*genetics/physiopathology ; Neurons/metabolism ; Neuropeptides/metabolism ; Orexin Receptors ; Receptors, G-Protein-Coupled ; Receptors, Neuropeptide/chemistry/*genetics/physiology ; *Sleep/physiology ; Sleep, REM
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  • 70
    Publication Date: 1999-12-11
    Description: Subsets of murine CD4+ T cells localize to different areas of the spleen after adoptive transfer. Naive and T helper 1 (TH1) cells, which express the chemokine receptor CCR7, are home to the periarteriolar lymphoid sheath, whereas activated TH2 cells, which lack CCR7, form rings at the periphery of the T cell zones near B cell follicles. Retroviral transduction of TH2 cells with CCR7 forces them to localize in a TH1-like pattern and inhibits their participation in B cell help in vivo but not in vitro. Thus, differential expression of chemokine receptors results in unique cellular migration patterns that are important for effective immune responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Randolph, D A -- Huang, G -- Carruthers, C J -- Bromley, L E -- Chaplin, D D -- AI34580/AI/NIAID NIH HHS/ -- T32 GM07200/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Dec 10;286(5447):2159-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Allergy and Immunology, Department of Internal Medicine, Center for Immunology, Washington University School of Medicine. Howard Hughes Medical Institute, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10591648" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; B-Lymphocytes/*immunology ; Calcium/metabolism ; Cell Movement ; Lymphocyte Activation ; Mice ; Mice, Inbred BALB C ; Mice, Transgenic ; Ovalbumin/immunology ; Receptors, CCR7 ; Receptors, Chemokine/*immunology/metabolism ; Signal Transduction ; Spleen/*immunology ; Th1 Cells/*immunology/metabolism ; Th2 Cells/*immunology/metabolism ; Transfection
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  • 71
    Publication Date: 1999-09-08
    Description: A mevalonate-independent pathway of isoprenoid biosynthesis present in Plasmodium falciparum was shown to represent an effective target for chemotherapy of malaria. This pathway includes 1-deoxy-D-xylulose 5-phosphate (DOXP) as a key metabolite. The presence of two genes encoding the enzymes DOXP synthase and DOXP reductoisomerase suggests that isoprenoid biosynthesis in P. falciparum depends on the DOXP pathway. This pathway is probably located in the apicoplast. The recombinant P. falciparum DOXP reductoisomerase was inhibited by fosmidomycin and its derivative, FR-900098. Both drugs suppressed the in vitro growth of multidrug-resistant P. falciparum strains. After therapy with these drugs, mice infected with the rodent malaria parasite P. vinckei were cured.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jomaa, H -- Wiesner, J -- Sanderbrand, S -- Altincicek, B -- Weidemeyer, C -- Hintz, M -- Turbachova, I -- Eberl, M -- Zeidler, J -- Lichtenthaler, H K -- Soldati, D -- Beck, E -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1573-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biochemistry, Academic Hospital Centre, Justus-Liebig-University, Friedrichstrasse 24, D-35392 Giessen, Germany. hassan.jomaa@biochemie.med.uni-giessen.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477522" target="_blank"〉PubMed〈/a〉
    Keywords: Aldose-Ketose Isomerases/*antagonists & inhibitors/chemistry/genetics/metabolism ; Amino Acid Sequence ; Animals ; Antimalarials/*pharmacology ; Cloning, Molecular ; Enzyme Inhibitors/pharmacology ; Fosfomycin/*analogs & derivatives/pharmacology ; Genes, Protozoan ; *Hemiterpenes ; Malaria/*drug therapy/parasitology ; Malaria, Falciparum/drug therapy/parasitology ; Mevalonic Acid/metabolism ; Mice ; Molecular Sequence Data ; Multienzyme Complexes/*antagonists & inhibitors/chemistry/genetics/metabolism ; Organelles/drug effects/metabolism ; Organophosphorus Compounds/metabolism ; Oxidoreductases/*antagonists & inhibitors/chemistry/genetics/metabolism ; Pentosephosphates/*metabolism ; Plasmodium falciparum/*drug effects/genetics/metabolism ; Recombinant Proteins/antagonists & inhibitors/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Terpenes/*pharmacology
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  • 72
    Publication Date: 1999-04-16
    Description: In mammals, ocular photoreceptors mediate an acute inhibition of pineal melatonin by light. The effect of rod and cone loss on this response was assessed by combining the rd mutation with a transgenic ablation of cones (cl) to produce mice lacking both photoreceptor classes. Despite the loss of all known retinal photoreceptors, rd/rd cl mice showed normal suppression of pineal melatonin in response to monochromatic light of wavelength 509 nanometers. These data indicate that mammals have additional ocular photoreceptors that they use in the regulation of temporal physiology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lucas, R J -- Freedman, M S -- Munoz, M -- Garcia-Fernandez, J M -- Foster, R G -- New York, N.Y. -- Science. 1999 Apr 16;284(5413):505-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Sir Alexander Fleming Building, Imperial College of Science, Technology and Medicine, London, SW7 2AZ, UK. r.j.lucas@ic.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10205062" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Clocks/physiology ; Circadian Rhythm/*physiology ; Cryptochromes ; Darkness ; *Drosophila Proteins ; *Eye Proteins ; Flavoproteins/genetics/physiology ; *Light ; Light Signal Transduction ; Melatonin/*metabolism ; Mice ; Mice, Inbred C3H ; Mice, Transgenic ; *Photoreceptor Cells, Invertebrate ; Photoreceptor Cells, Vertebrate/*physiology ; Pineal Gland/*metabolism ; Receptors, G-Protein-Coupled ; Retina/cytology/*physiology ; Retinal Ganglion Cells/physiology ; Retinal Pigments/genetics/physiology
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  • 73
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-11-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Oct 8;286(5438):223, 225.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10577187" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; BRCA1 Protein/chemistry/*metabolism ; Ligases/chemistry/*metabolism ; Mice ; Mutation ; Phosphotyrosine/metabolism ; Proteins/*metabolism ; Proto-Oncogene Proteins/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins c-cbl ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptor, Epidermal Growth Factor/metabolism ; Receptors, Platelet-Derived Growth Factor/metabolism ; Ubiquitin-Protein Ligases ; Ubiquitins/*metabolism ; src Homology Domains
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  • 74
    Publication Date: 1999-12-22
    Description: Alzheimer's disease (AD) has a substantial inflammatory component, and activated microglia may play a central role in neuronal degeneration. CD40 expression was increased on cultured microglia treated with freshly solublized amyloid-beta (Abeta, 500 nanomolar) and on microglia from a transgenic murine model of AD (Tg APPsw). Increased tumor necrosis factor alpha production and induction of neuronal injury occurred when Abeta-stimulated microglia were treated with CD40 ligand (CD40L). Microglia from Tg APPsw mice deficient for CD40L demonstrated reduction in activation, suggesting that the CD40-CD40L interaction is necessary for Abeta-induced microglial activation. Finally, abnormal tau phosphorylation was reduced in Tg APPsw animals deficient for CD40L, suggesting that the CD40-CD40L interaction is an early event in AD pathogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tan, J -- Town, T -- Paris, D -- Mori, T -- Suo, Z -- Crawford, F -- Mattson, M P -- Flavell, R A -- Mullan, M -- New York, N.Y. -- Science. 1999 Dec 17;286(5448):2352-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Roskamp Institute, University of South Florida, 3515 East Fletcher Avenue, Tampa, FL 33613, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10600748" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/metabolism ; Amyloid beta-Peptides/*metabolism/pharmacology ; Animals ; Antigens, CD40/biosynthesis/*metabolism ; CD40 Ligand ; Cell Death ; Cells, Cultured ; Interferon-gamma/pharmacology ; Interleukins/pharmacology ; Ligands ; Membrane Glycoproteins/*metabolism/pharmacology ; Mice ; Mice, Transgenic ; Microglia/cytology/immunology/*metabolism ; Neurons/cytology ; Peptide Fragments/pharmacology ; Phosphorylation ; Signal Transduction ; Tumor Necrosis Factor-alpha/biosynthesis/pharmacology ; tau Proteins/metabolism
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  • 75
    Publication Date: 1999-05-13
    Description: Insulin elicits a spectrum of biological responses by binding to its cell surface receptor. In a screen for small molecules that activate the human insulin receptor tyrosine kinase, a nonpeptidyl fungal metabolite (L-783,281) was identified that acted as an insulin mimetic in several biochemical and cellular assays. The compound was selective for insulin receptor versus insulin-like growth factor I (IGFI) receptor and other receptor tyrosine kinases. Oral administration of L-783,281 to two mouse models of diabetes resulted in significant lowering in blood glucose levels. These results demonstrate the feasibility of discovering novel insulin receptor activators that may lead to new therapies for diabetes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, B -- Salituro, G -- Szalkowski, D -- Li, Z -- Zhang, Y -- Royo, I -- Vilella, D -- Diez, M T -- Pelaez, F -- Ruby, C -- Kendall, R L -- Mao, X -- Griffin, P -- Calaycay, J -- Zierath, J R -- Heck, J V -- Smith, R G -- Moller, D E -- New York, N.Y. -- Science. 1999 May 7;284(5416):974-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Endocrinology, Merck Research Laboratories, R80W250, Post Office Box 2000, Rahway, NJ 07065, USA. bei_zhang@merck.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10320380" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Animals ; Ascomycota/*metabolism ; Binding Sites ; Blood Glucose/metabolism ; CHO Cells ; Cricetinae ; Diabetes Mellitus, Type 2/*drug therapy ; Dose-Response Relationship, Drug ; Drug Evaluation, Preclinical ; Enzyme Activation ; Glucose Tolerance Test ; Hyperglycemia/drug therapy ; Hypoglycemic Agents/chemistry/metabolism/*pharmacology/therapeutic use ; Indoles/chemistry/metabolism/*pharmacology/therapeutic use ; Insulin/blood/metabolism/*pharmacology ; Insulin Receptor Substrate Proteins ; Mice ; Mice, Mutant Strains ; Mice, Obese ; Molecular Mimicry ; Phosphoproteins/metabolism ; Phosphorylation ; Protein Conformation/drug effects ; Receptor, Epidermal Growth Factor/metabolism ; Receptor, IGF Type 1/metabolism ; Receptor, Insulin/chemistry/*metabolism ; Signal Transduction
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 76
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finkel, E -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):33-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10428697" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/therapeutic use ; Clinical Trials as Topic ; Cloning, Molecular ; *Glucuronidase ; Glycoside Hydrolases/*antagonists & inhibitors/*genetics/isolation & ; purification/metabolism ; Humans ; Mice ; Neoplasm Metastasis/*prevention & control ; Rats ; Tumor Cells, Cultured
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  • 77
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Jul 23;285(5427):508.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10447477" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain Mapping ; Diagnostic Imaging ; Light ; Mice ; *Odors ; Olfactory Bulb/*physiology ; Olfactory Receptor Neurons/physiology ; Rats ; Receptors, Odorant/*physiology ; Smell/*physiology
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  • 78
    Publication Date: 1999-11-27
    Description: Apoptosis can be triggered by members of the Bcl-2 protein family, such as Bim, that share only the BH3 domain with this family. Gene targeting in mice revealed important physiological roles for Bim. Lymphoid and myeloid cells accumulated, T cell development was perturbed, and most older mice accumulated plasma cells and succumbed to autoimmune kidney disease. Lymphocytes were refractory to apoptotic stimuli such as cytokine deprivation, calcium ion flux, and microtubule perturbation but not to others. Thus, Bim is required for hematopoietic homeostasis and as a barrier to autoimmunity. Moreover, particular death stimuli appear to activate apoptosis through distinct BH3-only proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bouillet, P -- Metcalf, D -- Huang, D C -- Tarlinton, D M -- Kay, T W -- Kontgen, F -- Adams, J M -- Strasser, A -- CA43540/CA/NCI NIH HHS/ -- CA80188/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1735-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10576740" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Apoptosis Regulatory Proteins ; Autoimmune Diseases/etiology ; *Autoimmunity ; B-Lymphocytes/physiology ; Carrier Proteins/*physiology ; Cells, Cultured ; Crosses, Genetic ; Female ; Gene Targeting ; Glomerulonephritis/etiology ; Hematopoietic Stem Cells/physiology ; Homeostasis ; Leukocyte Count ; Leukocytes/*physiology ; Male ; *Membrane Proteins ; Mice ; Mice, Transgenic ; *Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-bcl-2/physiology ; Signal Transduction ; T-Lymphocyte Subsets/physiology
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  • 79
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Jul 23;285(5427):506-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10447476" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Clocks ; Cell Nucleus/metabolism ; *Circadian Rhythm ; Cryptochromes ; Drosophila ; *Drosophila Proteins ; Evolution, Molecular ; *Eye Proteins ; Feedback ; Flavoproteins/genetics/*metabolism ; Gene Expression Regulation ; Insect Proteins/metabolism ; *Light ; Mice ; Nuclear Proteins/metabolism ; Period Circadian Proteins ; *Photoreceptor Cells, Invertebrate ; Receptors, G-Protein-Coupled
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  • 80
    Publication Date: 1999-06-18
    Description: In contrast with the prevailing view that most tumors and metastases begin as avascular masses, evidence is presented here that a subset of tumors instead initially grows by coopting existing host vessels. This coopted host vasculature does not immediately undergo angiogenesis to support the tumor but instead regresses, leading to a secondarily avascular tumor and massive tumor cell loss. Ultimately, however, the remaining tumor is rescued by robust angiogenesis at the tumor margin. The expression patterns of the angiogenic antagonist angiopoietin-2 and of pro-angiogenic vascular endothelial growth factor (VEGF) suggest that these proteins may be critical regulators of this balance between vascular regression and growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holash, J -- Maisonpierre, P C -- Compton, D -- Boland, P -- Alexander, C R -- Zagzag, D -- Yancopoulos, G D -- Wiegand, S J -- New York, N.Y. -- Science. 1999 Jun 18;284(5422):1994-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals, 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/10373119" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/blood supply/pathology ; Angiopoietin-1 ; Angiopoietin-2 ; Animals ; Apoptosis ; Blood Vessels/pathology ; Endothelial Growth Factors/genetics/*physiology ; Endothelium, Vascular/pathology/physiology ; Glioblastoma/blood supply/pathology ; Glioma/blood supply/pathology ; In Situ Hybridization ; Lymphokines/genetics/*physiology ; Male ; Membrane Glycoproteins/genetics/*physiology ; Mice ; Mice, Inbred C57BL ; Muscle, Smooth, Vascular/pathology/physiology ; Neoplasm Transplantation ; Neoplasms, Experimental/*blood supply/*pathology ; *Neovascularization, Pathologic ; Proteins/genetics/*physiology ; Rats ; Rats, Sprague-Dawley ; Up-Regulation ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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  • 81
    Publication Date: 1999-06-18
    Description: The signaling molecules that elicit embryonic induction of the liver from the mammalian gut endoderm or induction of other gut-derived organs are unknown. Close proximity of cardiac mesoderm, which expresses fibroblast growth factors (FGFs) 1, 2, and 8, causes the foregut endoderm to develop into the liver. Treatment of isolated foregut endoderm from mouse embryos with FGF1 or FGF2, but not FGF8, was sufficient to replace cardiac mesoderm as an inducer of the liver gene expression program, the latter being the first step of hepatogenesis. The hepatogenic response was restricted to endoderm tissue, which selectively coexpresses FGF receptors 1 and 4. Further studies with FGFs and their specific inhibitors showed that FGF8 contributes to the morphogenetic outgrowth of the hepatic endoderm. Thus, different FGF signals appear to initiate distinct phases of liver development during mammalian organogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jung, J -- Zheng, M -- Goldfarb, M -- Zaret, K S -- GM36477/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Jun 18;284(5422):1998-2003.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Cell Biology, and Biochemistry, Brown University, Box G-J363, Providence, RI 02912, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10373120" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Culture Techniques ; Digestive System/embryology ; *Embryonic Induction ; Endoderm/metabolism/*physiology ; Fibroblast Growth Factor 1 ; Fibroblast Growth Factor 2/genetics/pharmacology/physiology ; Fibroblast Growth Factor 8 ; Fibroblast Growth Factors/genetics/pharmacology/*physiology ; Gene Expression ; Heart/embryology ; Heparitin Sulfate/pharmacology ; Liver/*embryology/metabolism ; Mesoderm/metabolism ; Mice ; Mice, Inbred C3H ; Morphogenesis ; Organ Specificity ; Prealbumin/genetics ; Receptors, Fibroblast Growth Factor/physiology ; Recombinant Fusion Proteins ; Serum Albumin/genetics ; Signal Transduction ; alpha-Fetoproteins/genetics
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  • 82
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Jul 9;285(5425):175, 177.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10428706" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/pathology/*prevention & control/*therapy ; Amyloid beta-Peptides/*immunology ; Animals ; Antibodies/immunology ; Brain/pathology ; Clinical Trials as Topic ; Humans ; *Immunization ; Mice ; Mice, Transgenic ; Plaque, Amyloid/pathology
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  • 83
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Jun 11;284(5421):1755-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10391789" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/cytology/physiology ; Cells, Cultured ; Dendrites/physiology/ultrastructure ; Glutamic Acid/*physiology ; Long-Term Potentiation/*physiology ; Mice ; Neurons/physiology ; Rats ; Receptors, AMPA/*physiology ; Receptors, N-Methyl-D-Aspartate/*physiology ; Synapses/*physiology
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  • 84
    Publication Date: 1999-05-21
    Description: Bile acids are essential for the solubilization and transport of dietary lipids and are the major products of cholesterol catabolism. Results presented here show that bile acids are physiological ligands for the farnesoid X receptor (FXR), an orphan nuclear receptor. When bound to bile acids, FXR repressed transcription of the gene encoding cholesterol 7alpha-hydroxylase, which is the rate-limiting enzyme in bile acid synthesis, and activated the gene encoding intestinal bile acid-binding protein, which is a candidate bile acid transporter. These results demonstrate a mechanism by which bile acids transcriptionally regulate their biosynthesis and enterohepatic transport.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Makishima, M -- Okamoto, A Y -- Repa, J J -- Tu, H -- Learned, R M -- Luk, A -- Hull, M V -- Lustig, K D -- Mangelsdorf, D J -- Shan, B -- New York, N.Y. -- Science. 1999 May 21;284(5418):1362-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Pharmacology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75235-9050, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10334992" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bile Acids and Salts/biosynthesis/*metabolism ; Biological Transport ; Carrier Proteins/*genetics/metabolism ; Cell Line ; Chenodeoxycholic Acid/*metabolism ; Cholesterol/metabolism ; Cholesterol 7-alpha-Hydroxylase/*genetics ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; Gene Expression Regulation ; Histone Acetyltransferases ; Homeostasis ; Humans ; *Hydroxysteroid Dehydrogenases ; Ligands ; Liver/metabolism ; *Membrane Glycoproteins ; Mice ; Nuclear Receptor Coactivator 1 ; *Organic Anion Transporters, Sodium-Dependent ; Receptors, Cytoplasmic and Nuclear/chemistry/genetics/*metabolism ; *Symporters ; Transcription Factors/chemistry/genetics/*metabolism ; Transfection ; Tumor Cells, Cultured
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  • 85
    Publication Date: 1999-08-24
    Description: Large (more than 16-fold) differences in susceptibility to disruption of juvenile male reproductive development by 17beta-estradiol (E2) were detected between strains of mice. Effects of strain, E2 dose, and the interaction of strain and E2 dose on testes weight and spermatogenesis were all highly significant (P 〈 0.0001). Spermatid maturation was eliminated by low doses of E2 in strains such as C57BL/6J and C17/Jls. In contrast, mice of the widely used CD-1 line, which has been selected for large litter size, showed little or no inhibition of spermatid maturation even in response to 16 times as much E2. Product safety bioassays conducted with animals selected for fecundity may greatly underestimate disruption of male reproductive development by estradiol and environmental estrogenic compounds.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spearow, J L -- Doemeny, P -- Sera, R -- Leffler, R -- Barkley, M -- New York, N.Y. -- Science. 1999 Aug 20;285(5431):1259-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neurobiology, Physiology and Behavior, University of California at Davis, Davis, CA 95616, USA. jlspearow@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10455051" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Weight/drug effects ; Dose-Response Relationship, Drug ; Estradiol/*pharmacology/toxicity ; *Genetic Variation ; Litter Size ; Male ; Mice ; Mice, Inbred Strains ; Organ Size/drug effects ; Species Specificity ; Spermatids/drug effects ; Spermatogenesis/*drug effects ; Testis/anatomy & histology/*drug effects ; Toxicity Tests
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  • 86
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-05-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Apr 16;284(5413):421-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10232983" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Clocks/*physiology ; Circadian Rhythm/*physiology ; Cryptochromes ; Darkness ; *Drosophila Proteins ; *Eye Proteins ; Flavoproteins/genetics/*physiology ; Humans ; *Light ; Mice ; Mutation ; *Ocular Physiological Phenomena ; *Photoreceptor Cells, Invertebrate ; Photoreceptor Cells, Vertebrate/*physiology ; Receptors, G-Protein-Coupled
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  • 87
    Publication Date: 1999-09-08
    Description: Studies on pluripotent hematopoietic stem cells (HSCs) have been hindered by lack of a positive marker, comparable to the CD34 marker of hematopoietic progenitor cells (HPCs). In human postnatal hematopoietic tissues, 0.1 to 0.5% of CD34(+) cells expressed vascular endothelial growth factor receptor 2 (VEGFR2, also known as KDR). Pluripotent HSCs were restricted to the CD34+KDR+ cell fraction. Conversely, lineage-committed HPCs were in the CD34+KDR- subset. On the basis of limiting dilution analysis, the HSC frequency in the CD34+KDR+ fraction was 20 percent in bone marrow (BM) by mouse xenograft assay and 25 to 42 percent in BM, peripheral blood, and cord blood by 12-week long-term culture (LTC) assay. The latter values rose to 53 to 63 percent in LTC supplemented with VEGF and to greater than 95 percent for the cell subfraction resistant to growth factor starvation. Thus, KDR is a positive functional marker defining stem cells and distinguishing them from progenitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ziegler, B L -- Valtieri, M -- Porada, G A -- De Maria, R -- Muller, R -- Masella, B -- Gabbianelli, M -- Casella, I -- Pelosi, E -- Bock, T -- Zanjani, E D -- Peschle, C -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1553-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Hematology and Oncology, University of Tubingen, Otfried-Muller-Strasse 10, D-72076 Tubingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477517" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD34/*analysis ; Bone Marrow Cells/cytology ; Cell Lineage ; Cell Separation ; Cells, Cultured ; Endothelial Growth Factors/pharmacology ; Female ; Fetal Blood/cytology ; Fetus ; Flow Cytometry ; *Hematopoiesis ; Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/chemistry/*cytology/drug effects/physiology ; Humans ; Lymphokines/pharmacology ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Phenotype ; Pregnancy ; Receptor Protein-Tyrosine Kinases/*analysis/physiology ; Receptors, Growth Factor/*analysis/physiology ; Receptors, Vascular Endothelial Growth Factor ; Sheep ; Transplantation, Heterologous ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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  • 88
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-05-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉May, M J -- Ghosh, S -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):271-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Immunobiology, Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10232975" target="_blank"〉PubMed〈/a〉
    Keywords: Abnormalities, Multiple/enzymology/genetics ; Animals ; Bone Development ; DNA-Binding Proteins/metabolism ; Dimerization ; *Embryonic and Fetal Development ; Gene Targeting ; I-kappa B Kinase ; I-kappa B Proteins ; Interleukin-1/pharmacology ; Mice ; Morphogenesis ; NF-kappa B/*metabolism ; Phosphorylation ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Signal Transduction ; Skin/embryology ; Tumor Necrosis Factor-alpha/pharmacology
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  • 89
    Publication Date: 1999-04-16
    Description: Circadian rhythms of mammals are entrained by light to follow the daily solar cycle (photoentrainment). To determine whether retinal rods and cones are required for this response, the effects of light on the regulation of circadian wheel-running behavior were examined in mice lacking these photoreceptors. Mice without cones (cl) or without both rods and cones (rdta/cl) showed unattenuated phase-shifting responses to light. Removal of the eyes abolishes this behavior. Thus, neither rods nor cones are required for photoentrainment, and the murine eye contains additional photoreceptors that regulate the circadian clock.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freedman, M S -- Lucas, R J -- Soni, B -- von Schantz, M -- Munoz, M -- David-Gray, Z -- Foster, R -- New York, N.Y. -- Science. 1999 Apr 16;284(5413):502-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Alexander Fleming Building, Imperial College of Science, Technology and Medicine, London, SW7 2AZ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10205061" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Clocks/*physiology ; Circadian Rhythm/*physiology ; *Light ; Mice ; Mice, Transgenic ; Motor Activity ; *Ocular Physiological Phenomena ; Photoreceptor Cells, Vertebrate/*physiology ; Pigments, Biological/physiology ; Retinal Cone Photoreceptor Cells/physiology ; Retinal Pigments/physiology ; Retinal Rod Photoreceptor Cells/physiology
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  • 90
    Publication Date: 1999-01-15
    Description: Phosphoinositide 3-kinase (PI3K) activation has been implicated in many cellular responses, including fibroblast growth, transformation, survival, and chemotaxis. Although PI3K is activated by several agents that stimulate T and B cells, the role of PI3K in lymphocyte function is not clear. The mouse gene encoding the PI3K adapter subunit p85alpha and its splice variants p55alpha and p50alpha was disrupted. Most p85alpha-p55alpha-p50alpha-/- mice die within days after birth. Lymphocyte development and function was studied with the use of the RAG2-deficient blastocyst complementation system. Chimeric mice had reduced numbers of peripheral mature B cells and decreased serum immunoglobulin. The B cells that developed had diminished proliferative responses to antibody to immunoglobulin M, antibody to CD40, and lipopolysaccharide stimulation and decreased survival after incubation with interleukin-4. In contrast, T cell development and proliferation was normal. This phenotype is similar to defects observed in mice lacking the tyrosine kinase Btk.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fruman, D A -- Snapper, S B -- Yballe, C M -- Davidson, L -- Yu, J Y -- Alt, F W -- Cantley, L C -- R01 GM041890/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Jan 15;283(5400):393-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Signal Transduction, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA. dfruman@bidmc.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9888855" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD45/analysis ; Apoptosis ; B-Lymphocytes/cytology/enzymology/*immunology ; Catalytic Domain ; Cell Cycle ; Chimera ; Chromones/pharmacology ; Enzyme Inhibitors/pharmacology ; Female ; Gene Targeting ; Immunoglobulins/*blood ; *Lymphocyte Activation ; Lymphocyte Count ; Male ; Mice ; Mice, Inbred C57BL ; Morpholines/pharmacology ; Phosphatidylinositol 3-Kinases/antagonists & inhibitors/genetics/*metabolism ; Protein-Tyrosine Kinases/genetics/metabolism ; Spleen/immunology ; T-Lymphocytes/cytology/enzymology/immunology
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  • 91
    Publication Date: 1999-05-29
    Description: Vaccines based on preferential expression of bacterial antigens during human infection have not been described. Staphylococcus aureus synthesized poly-N-succinyl beta-1-6 glucosamine (PNSG) as a surface polysaccharide during human and animal infection, but few strains expressed PNSG in vitro. All S. aureus strains examined carried genes for PNSG synthesis. Immunization protected mice against kidney infections and death from strains that produced little PNSG in vitro. Nonimmune infected animals made antibody to PNSG, but serial in vitro cultures of kidney isolates yielded mostly cells that did not produce PNSG. PNSG is a candidate for use in a vaccine to protect against S. aureus infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McKenney, D -- Pouliot, K L -- Wang, Y -- Murthy, V -- Ulrich, M -- Doring, G -- Lee, J C -- Goldmann, D A -- Pier, G B -- AI2335/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 May 28;284(5419):1523-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, Department of Medicine, Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10348739" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Bacterial/*biosynthesis/blood ; Bacterial Capsules/immunology ; Child ; Female ; Genes, Bacterial ; Humans ; Immunization, Passive ; Immunoglobulin G/biosynthesis/blood ; Kidney/immunology/microbiology ; Kidney Diseases/immunology/microbiology/prevention & control ; Mice ; Polysaccharides, Bacterial/biosynthesis/*immunology ; Rabbits ; Staphylococcal Infections/immunology/microbiology/*prevention & control ; Staphylococcal Vaccines/*immunology ; Staphylococcus aureus/genetics/*immunology ; Vaccination
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  • 92
    Publication Date: 1999-01-15
    Description: The mechanism by which psychostimulants act as calming agents in humans with attention-deficit hyperactivity disorder (ADHD) or hyperkinetic disorder is currently unknown. Mice lacking the gene encoding the plasma membrane dopamine transporter (DAT) have elevated dopaminergic tone and are hyperactive. This activity was exacerbated by exposure to a novel environment. Additionally, these mice were impaired in spatial cognitive function, and they showed a decrease in locomotion in response to psychostimulants. This paradoxical calming effect of psychostimulants depended on serotonergic neurotransmission. The parallels between the DAT knockout mice and individuals with ADHD suggest that common mechanisms may underlie some of their behaviors and responses to psychostimulants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gainetdinov, R R -- Wetsel, W C -- Jones, S R -- Levin, E D -- Jaber, M -- Caron, M G -- MH-40159/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1999 Jan 15;283(5400):397-401.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute Laboratories, Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9888856" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Attention Deficit Disorder with Hyperactivity/drug ; therapy/physiopathology/psychology ; Behavior, Animal/drug effects ; Carrier Proteins/antagonists & inhibitors/drug effects/genetics/metabolism ; Central Nervous System Stimulants/*pharmacology ; Corpus Striatum/*metabolism ; Dopamine/metabolism/physiology ; Dopamine Plasma Membrane Transport Proteins ; Fluoxetine/pharmacology ; Humans ; Hyperkinesis/*drug therapy/physiopathology/psychology ; Maze Learning ; Membrane Glycoproteins/drug effects/metabolism ; *Membrane Transport Proteins ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Motor Activity/drug effects ; *Nerve Tissue Proteins ; Norepinephrine Plasma Membrane Transport Proteins ; Serotonin/metabolism/*physiology ; Serotonin Plasma Membrane Transport Proteins ; Serotonin Uptake Inhibitors/pharmacology ; *Symporters ; *Synaptic Transmission
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 93
    Publication Date: 1999-01-29
    Description: A carbapenem antibiotic, L-786,392, was designed so that the side chain that provides high-affinity binding to the penicillin-binding proteins responsible for bacterial resistance was also the structural basis for ameliorating immunopathology. Expulsion of the side chain upon opening of the beta-lactam ring retained antibacterial activity while safely expelling the immunodominant epitope. L-786,392 was well tolerated in animal safety studies and had significant in vitro and in vivo activities against methicillin- and vancomycin-resistant Staphylococci and vancomycin-resistant Enterococci.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosen, H -- Hajdu, R -- Silver, L -- Kropp, H -- Dorso, K -- Kohler, J -- Sundelof, J G -- Huber, J -- Hammond, G G -- Jackson, J J -- Gill, C J -- Thompson, R -- Pelak, B A -- Epstein-Toney, J H -- Lankas, G -- Wilkening, R R -- Wildonger, K J -- Blizzard, T A -- DiNinno, F P -- Ratcliffe, R W -- Heck, J V -- Kozarich, J W -- Hammond, M L -- New York, N.Y. -- Science. 1999 Jan 29;283(5402):703-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Merck Research Laboratories, Rahway, NJ 07065, USA. hugh_rosen@merck.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9924033" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/blood ; *Bacterial Proteins ; Carbapenems/chemistry/*immunology/metabolism/*pharmacology/toxicity ; Carrier Proteins/metabolism ; Dipeptidases/metabolism ; *Drug Design ; Drug Resistance, Microbial ; Drug Resistance, Multiple ; Enterococcus/drug effects ; Erythrocytes/immunology ; Haptens ; *Hexosyltransferases ; Humans ; Immunodominant Epitopes ; Immunoglobulin G/blood ; Lactams/chemical synthesis/chemistry/metabolism/*pharmacology ; Lymphocyte Activation ; Macaca mulatta ; Mice ; Mice, Inbred DBA ; Microbial Sensitivity Tests ; Muramoylpentapeptide Carboxypeptidase/metabolism ; Penicillin-Binding Proteins ; *Peptidyl Transferases ; Staphylococcal Infections/drug therapy ; Staphylococcus/drug effects ; Thiazoles/chemical synthesis/chemistry/metabolism/*pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 94
    Publication Date: 1999-11-27
    Description: Extracellular signals often result in simultaneous activation of both the Raf-MEK-ERK and PI3K-Akt pathways (where ERK is extracellular-regulated kinase, MEK is mitogen-activated protein kinase or ERK kinase, and PI3K is phosphatidylinositol 3-kinase). However, these two signaling pathways were shown to exert opposing effects on muscle cell hypertrophy. Furthermore, the PI3K-Akt pathway was shown to inhibit the Raf-MEK-ERK pathway; this cross-regulation depended on the differentiation state of the cell: Akt activation inhibited the Raf-MEK-ERK pathway in differentiated myotubes, but not in their myoblast precursors. The stage-specific inhibitory action of Akt correlated with its stage-specific ability to form a complex with Raf, suggesting the existence of differentially expressed mediators of an inhibitory Akt-Raf complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rommel, C -- Clarke, B A -- Zimmermann, S -- Nunez, L -- Rossman, R -- Reid, K -- Moelling, K -- Yancopoulos, G D -- Glass, D J -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1738-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals, 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/10576741" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Line ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclins/genetics ; Enzyme Activation ; Enzyme Inhibitors/pharmacology ; Flavonoids/pharmacology ; Insulin-Like Growth Factor I/pharmacology ; MAP Kinase Signaling System/drug effects ; Mice ; Mitogen-Activated Protein Kinases/*antagonists & inhibitors/metabolism ; Muscle, Skeletal/*cytology/*metabolism ; Myogenin/genetics ; Phenotype ; Phosphatidylinositol 3-Kinases/metabolism ; Phosphorylation ; Protein-Serine-Threonine Kinases/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Proto-Oncogene Proteins c-raf/*antagonists & inhibitors/metabolism ; Signal Transduction ; Transfection ; Transgenes
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 95
    Publication Date: 1999-02-12
    Description: An alanyl-alanyl-phenylalanyl-7-amino-4-methylcoumarin-hydrolyzing protease particle copurifying with 26S proteasomes was isolated and identified as tripeptidyl peptidase II (TPPII), a cytosolic subtilisin-like peptidase of unknown function. The particle is larger than the 26S proteasome and has a rod-shaped, dynamic supramolecular structure. TPPII exhibits enhanced activity in proteasome inhibitor-adapted cells and degrades polypeptides by exo- as well as predominantly trypsin-like endoproteolytic cleavage. TPPII may thus participate in extralysosomal polypeptide degradation and may in part account for nonproteasomal epitope generation as postulated for certain major histocompatibility complex class I alleles. In addition, TPPII may be able to substitute for some metabolic functions of the proteasome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geier, E -- Pfeifer, G -- Wilm, M -- Lucchiari-Hartz, M -- Baumeister, W -- Eichmann, K -- Niedermann, G -- New York, N.Y. -- Science. 1999 Feb 12;283(5404):978-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck Institute of Immunobiology, Stubeweg 51, D-79108 Freiburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9974389" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcysteine/analogs & derivatives/pharmacology ; Alleles ; Amino Acid Chloromethyl Ketones/pharmacology ; Aminopeptidases ; Animals ; Cell Survival ; Coumarins/metabolism ; Cysteine Endopeptidases/*metabolism ; Cytosol/enzymology ; Dipeptidyl-Peptidases and Tripeptidyl-Peptidases ; Epitopes/metabolism ; Genes, MHC Class I ; Hydrolysis ; Mice ; Molecular Weight ; Multienzyme Complexes/*metabolism ; Oligopeptides/metabolism ; Proteasome Endopeptidase Complex ; Serine Endopeptidases/chemistry/isolation & purification/*metabolism ; Serine Proteinase Inhibitors/pharmacology ; Substrate Specificity ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-08-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Merriweather, D A -- Kaestle, F A -- New York, N.Y. -- Science. 1999 Aug 6;285(5429):837.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10454933" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA, Mitochondrial/*genetics ; Europe ; Genetic Linkage ; Haplotypes ; Humans ; Indians, North American/genetics ; Melanesia ; Mice ; *Polymorphism, Genetic ; *Recombination, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
    Publication Date: 1999-02-05
    Description: Mycobacterium ulcerans is the causative agent of Buruli ulcer, a severe human skin disease that occurs primarily in Africa and Australia. Infection with M. ulcerans results in persistent severe necrosis without an acute inflammatory response. The presence of histopathological changes distant from the site of infection suggested that pathogenesis might be toxin mediated. A polyketide-derived macrolide designated mycolactone was isolated that causes cytopathicity and cell cycle arrest in cultured L929 murine fibroblasts. Intradermal inoculation of purified toxin into guinea pigs produced a lesion similar to that of Buruli ulcer in humans. This toxin may represent one of a family of virulence factors associated with pathology in mycobacterial diseases such as leprosy and tuberculosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉George, K M -- Chatterjee, D -- Gunawardana, G -- Welty, D -- Hayman, J -- Lee, R -- Small, P L -- New York, N.Y. -- Science. 1999 Feb 5;283(5403):854-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9933171" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Toxins/chemistry/*isolation & purification/*toxicity ; Cell Cycle/drug effects ; Chromatography, High Pressure Liquid ; Chromatography, Thin Layer ; Female ; Guinea Pigs ; L Cells (Cell Line) ; Macrolides ; Mass Spectrometry ; Mice ; Mycobacterium Infections, Nontuberculous/microbiology/pathology ; Mycobacterium ulcerans/chemistry/*pathogenicity ; Necrosis ; Skin/microbiology/pathology ; Skin Diseases, Bacterial/microbiology/pathology ; Virulence
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
    Publication Date: 1999-08-07
    Description: There is a long-standing controversy regarding the mechanisms that generate the functional subdivisions of the cerebral neocortex. One model proposes that thalamic axonal input specifies these subdivisions; the competing model postulates that patterning mechanisms intrinsic to the dorsal telencephalon generate neocortical regions. Gbx-2 mutant mice, whose thalamic differentiation is disrupted, were investigated. Despite the lack of cortical innervation by thalamic axons, neocortical region-specific gene expression (Cadherin-6, EphA-7, Id-2, and RZR-beta) developed normally. This provides evidence that patterning mechanisms intrinsic to the neocortex specify the basic organization of its functional subdivisions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyashita-Lin, E M -- Hevner, R -- Wassarman, K M -- Martinez, S -- Rubenstein, J L -- NS34661-01A1/NS/NINDS NIH HHS/ -- R01 MH49428-01/MH/NIMH NIH HHS/ -- R01 MH51561-01A1/MH/NIMH NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Aug 6;285(5429):906-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nina Ireland Laboratory of Developmental Neurobiology, Department of Psychiatry, School of Medicine, University of California San Francisco, San Francisco, CA 94143-0984, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10436162" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/chemistry/*physiology ; Cadherins/genetics ; Calbindin 2 ; Carbocyanines ; DNA-Binding Proteins/genetics ; Gene Expression ; Homeodomain Proteins/genetics/physiology ; Immunohistochemistry ; In Situ Hybridization ; Inhibitor of Differentiation Proteins ; Lymphoid Enhancer-Binding Factor 1 ; Mice ; Mutation ; Neocortex/anatomy & histology/*embryology/growth & development/metabolism ; Nerve Fibers/physiology/ultrastructure ; Proteins/genetics ; Receptors, Cell Surface/genetics ; Receptors, Cytoplasmic and Nuclear/genetics ; Receptors, Melatonin ; S100 Calcium Binding Protein G/analysis ; Steroid 17-alpha-Hydroxylase/analysis ; Telencephalon/embryology/growth & development/physiology ; Thalamus/anatomy & histology/*embryology/growth & development/metabolism ; Transcription Factors/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, G -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1825-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610568" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anticholesteremic Agents/*pharmacology ; Bone Density/*drug effects ; Bone Morphogenetic Protein 2 ; Bone Morphogenetic Proteins/biosynthesis ; Clinical Trials as Topic ; Female ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors/*pharmacology ; Lovastatin/*pharmacology ; Mice ; Osteogenesis/*drug effects ; Osteoporosis/drug therapy ; Rats ; Simvastatin/pharmacology ; *Transforming Growth Factor beta
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, G -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):23.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10428692" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Body Patterning ; Cilia/*physiology ; *Embryonic and Fetal Development ; Heart/*embryology ; Humans ; Mice ; Mice, Knockout
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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