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  • 1
    Publication Date: 2001-05-08
    Description: Natural killer (NK) cells are lymphocytes that can be distinguished from T and B cells through their involvement in innate immunity and their lack of rearranged antigen receptors. Although NK cells and their receptors were initially characterized in terms of tumor killing in vitro, we have determined that the NK cell activation receptor, Ly-49H, is critically involved in resistance to murine cytomegalovirus in vivo. Ly-49H requires an immunoreceptor tyrosine-based activation motif (ITAM)-containing transmembrane molecule for expression and signal transduction. Thus, NK cells use receptors functionally resembling ITAM-coupled T and B cell antigen receptors to provide vital innate host defense.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, M G -- Dokun, A O -- Heusel, J W -- Smith, H R -- Beckman, D L -- Blattenberger, E A -- Dubbelde, C E -- Stone, L R -- Scalzo, A A -- Yokoyama, W M -- New York, N.Y. -- Science. 2001 May 4;292(5518):934-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Rheumatology Division, 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/11340207" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/immunology ; *Antigens, Ly ; Crosses, Genetic ; Cytotoxicity, Immunologic ; Female ; Haplotypes ; Herpesviridae Infections/*immunology ; Histocompatibility Antigens Class I/immunology ; Humans ; *Immunity, Innate ; Killer Cells, Natural/*immunology ; Lectins, C-Type ; Ligands ; *Lymphocyte Activation ; Male ; Membrane Glycoproteins/genetics/*immunology ; Mice ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Muromegalovirus/*immunology ; Phenotype ; Receptors, Immunologic/*immunology ; Receptors, NK Cell Lectin-Like ; Tumor Cells, Cultured
    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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