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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6237
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pubmed:dateCreated |
1989-10-3
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pubmed:abstractText |
T lymphocytes are found not only as recirculating cells in the lymphoid system, but also as immobile cells in certain epithelia. T-cell antigen receptors (TCR) of both alpha/beta and gamma/delta-heterodimer subtypes can exhibit an extremely high degree of diversity. The diversity of alpha/beta TCRs derives from the use of a large number of variable (V) gene segments, as well as junctional diversity generated during rearrangement of these segments, whereas the diversity of gamma/delta TCRs derives largely from junctional elements, with a smaller contribution from a limited number of V gene segments. Many T cells in the epidermal and intestinal epithelia of mice express TCR composed of gamma/delta heterodimers. We demonstrate here that gamma/delta TCRs of T cells in both these tissues are restricted in V gene usage, with different elements predominating. The TCR junctional diversity of epidermal T cells, however, is extremely limited, whereas that of intestinal T cells is extremely diverse. The distinctive features of these two populations suggest that they develop or are selected differently for particular tissue-specific functions.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0028-0836
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
7
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pubmed:volume |
341
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
60-2
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2528075-Animals,
pubmed-meshheading:2528075-Base Sequence,
pubmed-meshheading:2528075-Dendritic Cells,
pubmed-meshheading:2528075-Epidermis,
pubmed-meshheading:2528075-Epithelium,
pubmed-meshheading:2528075-Gene Rearrangement, T-Lymphocyte,
pubmed-meshheading:2528075-Intestinal Mucosa,
pubmed-meshheading:2528075-Mice,
pubmed-meshheading:2528075-Receptors, Antigen, T-Cell,
pubmed-meshheading:2528075-Receptors, Antigen, T-Cell, gamma-delta,
pubmed-meshheading:2528075-T-Lymphocytes
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pubmed:year |
1989
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pubmed:articleTitle |
Distinct antigen receptor repertoires of two classes of murine epithelium-associated T cells.
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pubmed:affiliation |
Department of Molecular and Cell Biology, University of California, Berkeley 94720.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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