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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4873
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pubmed:dateCreated |
1988-10-24
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pubmed:abstractText |
Cyclosporine A (CsA) is an important immunosuppressive drug that is widely used in transplantation medicine. Many of its suppressive effects on T cells appear to be related to the inhibition of T cell receptor (TCR)-mediated activation events. Paradoxically, in certain situations CsA is responsible for the induction of a T cell-mediated autoimmunity. The effects of CsA on T cell development in the thymus were investigated to elucidate the physiologic events underlying this phenomenon. Two major effects were revealed: (i) CsA inhibits the development of mature single positive (CD4+8- or CD4-8+) TCR-alpha beta+ thymocytes without discernibly affecting CD4-8- TCR-gamma delta+ thymocytes and (ii) CsA interferes with the deletion of cells bearing self-reactive TCRs in the population of single positive thymocytes that do develop. This suggests a direct mechanism for CsA-induced autoimmunity and may have implications for the relative contribution of TCR-mediated signaling events in the development of the various T cell lineages.
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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 |
0036-8075
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
23
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pubmed:volume |
241
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1655-8
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pubmed:dateRevised |
2007-3-19
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pubmed:meshHeading |
pubmed-meshheading:3262237-Animals,
pubmed-meshheading:3262237-Antibodies, Monoclonal,
pubmed-meshheading:3262237-Antigens, Differentiation, T-Lymphocyte,
pubmed-meshheading:3262237-Autoimmune Diseases,
pubmed-meshheading:3262237-Cell Differentiation,
pubmed-meshheading:3262237-Cyclosporins,
pubmed-meshheading:3262237-Mice,
pubmed-meshheading:3262237-Mice, Inbred Strains,
pubmed-meshheading:3262237-Receptors, Antigen, T-Cell,
pubmed-meshheading:3262237-T-Lymphocytes
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pubmed:year |
1988
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pubmed:articleTitle |
Effects of cyclosporine A on T cell development and clonal deletion.
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pubmed:affiliation |
Laboratory of Cellular and Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892.
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pubmed:publicationType |
Journal Article
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