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Predicate | Object |
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rdf:type | |
lifeskim:mentions |
umls-concept:C0017337,
umls-concept:C0034790,
umls-concept:C0039194,
umls-concept:C0086418,
umls-concept:C0439097,
umls-concept:C0524637,
umls-concept:C1515021,
umls-concept:C1547348,
umls-concept:C1552644,
umls-concept:C1705241,
umls-concept:C1705535,
umls-concept:C1823153,
umls-concept:C2349976,
umls-concept:C2700640
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pubmed:issue |
10
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pubmed:dateCreated |
1991-12-16
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pubmed:abstractText |
Little is known about the nature of Ag recognition by the TCR-gamma delta. The recent observation that gamma delta T cells preferentially recognize mycobacterial Ag provides a model to examine the molecular basis of gamma delta-TCR recognition. Here, examination of the Mycobacteria-stimulated peripheral blood T cells with TCR-specific mAb revealed a predominance of T cells bearing V gamma 2/V delta 2 gene products. PCR cloning and sequence analysis of the TCR chains demonstrated extensive junctional diversity indicating that the response was polyclonal. The marked in vitro gamma delta T cell response to Mycobacteria was also detected in newborns before encounters with foreign Ag and exclusively involved the same V-gene usage observed in adults. Together, these results suggest that a major mechanism of gamma delta T cell reactivity involves recognition mediated by germline-encoded segments of the TCR.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0022-1767
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
147
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3360-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1658147-Adult,
pubmed-meshheading:1658147-Amino Acid Sequence,
pubmed-meshheading:1658147-Antigens, Bacterial,
pubmed-meshheading:1658147-Base Sequence,
pubmed-meshheading:1658147-Gene Rearrangement, delta-Chain T-Cell Antigen Receptor,
pubmed-meshheading:1658147-Gene Rearrangement, gamma-Chain T-Cell Antigen Receptor,
pubmed-meshheading:1658147-Humans,
pubmed-meshheading:1658147-Infant, Newborn,
pubmed-meshheading:1658147-Lymphocyte Activation,
pubmed-meshheading:1658147-Molecular Sequence Data,
pubmed-meshheading:1658147-Mycobacterium tuberculosis,
pubmed-meshheading:1658147-Receptors, Antigen, T-Cell, gamma-delta,
pubmed-meshheading:1658147-T-Lymphocytes,
pubmed-meshheading:1658147-Tuberculin
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pubmed:year |
1991
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pubmed:articleTitle |
A predominance of the T cell receptor V gamma 2/V delta 2 subset in human mycobacteria-responsive T cells suggests germline gene encoded recognition.
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pubmed:affiliation |
Laboratory of Immunochemistry, Dana-Farber Cancer Institute, Boston, MA 02115.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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