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  • 1
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    Functional requirement for class I MHC in CNS development and plasticity (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-12-16
    Description: Class I major histocompatibility complex (class I MHC) molecules, known to be important for immune responses to antigen, are expressed also by neurons that undergo activity-dependent, long-term structural and synaptic modifications. Here, we show that in mice genetically deficient for cell surface class I MHC or for a class I MHC receptor component, CD3zeta, refinement of connections between retina and central targets during development is incomplete. In the hippocampus of adult mutants, N-methyl-D-aspartate receptor-dependent long-term potentiation (LTP) is enhanced, and long-term depression (LTD) is absent. Specific class I MHC messenger RNAs are expressed by distinct mosaics of neurons, reflecting a potential for diverse neuronal functions. These results demonstrate an important role for these molecules in the activity-dependent remodeling and plasticity of connections in the developing and mature mammalian central nervous system (CNS).〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2175035/" 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/PMC2175035/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huh, G S -- Boulanger, L M -- Du, H -- Riquelme, P A -- Brotz, T M -- Shatz, C J -- 1F32EY07016/EY/NEI NIH HHS/ -- EY06912/EY/NEI NIH HHS/ -- F32 EY007016/EY/NEI NIH HHS/ -- F32 EY007016-02/EY/NEI NIH HHS/ -- F32 EY007016-03/EY/NEI NIH HHS/ -- MH48108/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2000 Dec 15;290(5499):2155-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA. gshuh@alum.mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11118151" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD3/genetics/*physiology ; Brain/growth & development/*physiology ; Excitatory Postsynaptic Potentials ; Gene Expression Profiling ; Genes, MHC Class I ; Geniculate Bodies/physiology ; Hippocampus/growth & development/physiology ; Histocompatibility Antigens Class I/genetics/*physiology ; In Situ Hybridization ; Long-Term Potentiation ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mice, Mutant Strains ; Neural Pathways ; *Neuronal Plasticity ; Neurons/*physiology ; Receptors, GABA-A/metabolism ; Receptors, N-Methyl-D-Aspartate/metabolism ; Retina/growth & development/physiology ; Retinal Ganglion Cells/physiology ; Signal Transduction ; Synapses/*physiology ; Synaptic Transmission ; Visual Pathways
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Response to RAG-mediated VDJ cleavage by NBS1 and gamma-H2AX (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-12-09
    Description: Genetic disorders affecting cellular responses to DNA damage are characterized by high rates of translocations involving antigen receptor loci and increased susceptibility to lymphoid malignancies. We report that the Nijmegen breakage syndrome protein (NBS1) and histone gamma-H2AX, which associate with irradiation-induced DNA double-strand breaks (DSBs), are also found at sites of VDJ (variable, diversity, joining) recombination-induced DSBs. In developing thymocytes, NBS1 and gamma-H2AX form nuclear foci that colocalize with the T cell receptor alpha locus in response to recombination activating gene (RAG) protein-mediated VDJ cleavage. Our results suggest that surveillance of T cell receptor recombination intermediates by NBS1 and gamma-H2AX may be important for preventing oncogenic translocations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4721589/" 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/PMC4721589/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, H T -- Bhandoola, A -- Difilippantonio, M J -- Zhu, J -- Brown, M J -- Tai, X -- Rogakou, E P -- Brotz, T M -- Bonner, W M -- Ried, T -- Nussenzweig, A -- Z99 CA999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2000 Dec 8;290(5498):1962-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Experimental Immunology Branch, National Cancer 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/11110662" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Nucleus/metabolism ; DNA Damage ; DNA-Binding Proteins/metabolism ; Fluorescent Antibody Technique ; *Gene Rearrangement, alpha-Chain T-Cell Antigen Receptor ; *Genes, T-Cell Receptor alpha ; Histones/*metabolism ; Homeodomain Proteins/metabolism ; Mice ; Mice, Transgenic ; Microscopy, Confocal ; Molecular Sequence Data ; Nuclear Proteins/*metabolism ; Phosphorylation ; *Recombination, Genetic ; T-Lymphocytes/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Dynamic imaging of T cell-dendritic cell interactions in lymph nodes (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-08
    Description: T cell immune responses begin within organized lymphoid tissues. The pace, topology, and outcomes of the cellular interactions that underlie these responses have, so far, been inferred from static imaging of sectioned tissue or from studies of cultured cells. Here we report dynamic visualization of antigen-specific T cells interacting with dendritic cells within intact explanted lymph nodes. We observed immunological synapse formation and prolonged interactions between these two cell types, followed by the activation, dissociation, and rapid migration of T cells away from the antigenic stimulus. This high-resolution spatiotemporal analysis provides insight into the nature of cell interactions critical to early immune responses within lymphoid structures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stoll, Sabine -- Delon, Jerome -- Brotz, Tilmann M -- Germain, Ronald N -- New York, N.Y. -- Science. 2002 Jun 7;296(5574):1873-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lymphocyte Biology Section, Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, 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/12052961" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; Antigens/immunology ; *Antigens, CD ; Antigens, CD43 ; *Cell Communication ; Cell Division ; Cell Movement ; Dendritic Cells/*immunology/physiology/ultrastructure ; Fluorescent Dyes ; Image Processing, Computer-Assisted ; Intercellular Junctions/physiology/ultrastructure ; Lymph Nodes/cytology/*immunology ; Lymphocyte Activation ; Mice ; Mice, Transgenic ; Microscopy, Confocal ; Recombinant Fusion Proteins/metabolism ; Sialoglycoproteins/analysis/genetics/metabolism ; T-Lymphocytes/*immunology/physiology/ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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