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Predicate | Object |
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rdf:type | |
lifeskim:mentions |
umls-concept:C0017262,
umls-concept:C0020852,
umls-concept:C0021017,
umls-concept:C0025914,
umls-concept:C0026809,
umls-concept:C0037791,
umls-concept:C0039194,
umls-concept:C0086418,
umls-concept:C0108747,
umls-concept:C0185117,
umls-concept:C0439097,
umls-concept:C0542341,
umls-concept:C1414555,
umls-concept:C1547348,
umls-concept:C1552644,
umls-concept:C1705241,
umls-concept:C1823153,
umls-concept:C2349976,
umls-concept:C2911684
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pubmed:issue |
1
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pubmed:dateCreated |
1992-8-11
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pubmed:abstractText |
We examined the expression, the signal transduction capacity and mouse IgG-isotype specificity of CD16 on human gamma delta T cells. CD16 is expressed by the majority of gamma delta T cells in peripheral blood and by part of the gamma delta T cell clones. The amount of CD16 expressed on gamma delta T cell clones varied considerably with passaging of the cells, but was always significantly less than on freshly isolated gamma delta T cells. Like CD16 on CD3- CD16+ natural killer (NK) cells, CD16 on gamma delta T cells can act as an activation site triggering cytotoxic activity. CD16+ gamma delta T cell clones exerted antibody-dependent cellular cytotoxicity (ADCC) which could be blocked by anti-CD16 mAb. ADCC activity of gamma delta T cell clones was also inhibited by anti-CD3 mAb, suggesting a functional linkage between the CD16 and CD3 activation pathways. MAb directed against CD16 induced lysis of Fc gamma R+ target cells by CD16+ gamma delta T cell clones. The mouse IgG-isotype specificity of CD16 on gamma delta T cells was analyzed using isotype switch variants of a murine anti-glycophorin A mAb in EA rosette assays, and was found to be identical to that of CD16 on CD3- CD16+ NK cells, i.e., highest affinity for mIgG2a, intermediate affinity for mIgG2b, and undetectable binding of mIgG1-sensitized erythrocytes. CD16 was partly modulated from the cell surface of both gamma delta T cells and NK cells after rosette formation with mIgG2a-sensitized erythrocytes, indicating that the rosette formation was indeed mediated via the CD16 molecule.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antibodies, Monoclonal,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Differentiation,
http://linkedlifedata.com/resource/pubmed/chemical/Epitopes,
http://linkedlifedata.com/resource/pubmed/chemical/Immunoglobulin G,
http://linkedlifedata.com/resource/pubmed/chemical/Immunoglobulin Isotypes,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Antigen, T-Cell...,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Fc,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, IgG
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0008-8749
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
143
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
97-107
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1377991-Animals,
pubmed-meshheading:1377991-Antibodies, Monoclonal,
pubmed-meshheading:1377991-Antigens, Differentiation,
pubmed-meshheading:1377991-Cytotoxicity, Immunologic,
pubmed-meshheading:1377991-Epitopes,
pubmed-meshheading:1377991-Humans,
pubmed-meshheading:1377991-Immunoglobulin G,
pubmed-meshheading:1377991-Immunoglobulin Isotypes,
pubmed-meshheading:1377991-Mice,
pubmed-meshheading:1377991-Receptors, Antigen, T-Cell, gamma-delta,
pubmed-meshheading:1377991-Receptors, Fc,
pubmed-meshheading:1377991-Receptors, IgG,
pubmed-meshheading:1377991-T-Lymphocytes
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pubmed:year |
1992
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pubmed:articleTitle |
CD16 on human gamma delta T lymphocytes: expression, function, and specificity for mouse IgG isotypes.
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pubmed:affiliation |
Department of Immunology, Daniel den Hoed Cancer Center, Rotterdam, The Netherlands.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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