rdf:type |
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lifeskim:mentions |
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pubmed:issue |
7
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pubmed:dateCreated |
1988-11-3
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pubmed:abstractText |
Decay-accelerating factor (DAF) is a cell surface protein that protects cells from autologous C-mediated lysis. DAF is one of the first phosphatidylinositol-linked molecules to be described on human T cells. The current studies demonstrate that low levels of DAF are expressed on a majority of freshly isolated human T cells and that DAF expression rapidly increases after T cell activation by mitogens. Moreover, antibodies to DAF induce T cell proliferation when the cells are co-stimulated with phorbol esters. The induction of proliferation is facilitated when the antibodies to DAF cross-linked with a secondary antibody. T cell mitogenesis is largely dependent on the phosphatidylinositol-linked form of DAF, because removal of DAF by a phosphatidylinositol-specific phospholipase C eliminates anti-DAF-induced T cell proliferation. These studies suggest that DAF on the surface of T cells may not only serve to afford protection from autologous C but may also function to transmit signals that induce T cell activation.
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pubmed:grant |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
AIM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0022-1767
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
141
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2246-52
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:2459203-Adult,
pubmed-meshheading:2459203-Antigens, CD55,
pubmed-meshheading:2459203-DNA,
pubmed-meshheading:2459203-Humans,
pubmed-meshheading:2459203-Immune Sera,
pubmed-meshheading:2459203-Lymphocyte Activation,
pubmed-meshheading:2459203-Membrane Proteins,
pubmed-meshheading:2459203-Mitogens,
pubmed-meshheading:2459203-Molecular Weight,
pubmed-meshheading:2459203-Phosphatidylinositol Diacylglycerol-Lyase,
pubmed-meshheading:2459203-Phosphoinositide Phospholipase C,
pubmed-meshheading:2459203-Phosphoric Diester Hydrolases,
pubmed-meshheading:2459203-Precipitin Tests,
pubmed-meshheading:2459203-Signal Transduction,
pubmed-meshheading:2459203-T-Lymphocytes
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pubmed:year |
1988
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pubmed:articleTitle |
Decay-accelerating factor functions as a signal transducing molecule for human T cells.
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pubmed:affiliation |
Harold C. Simmons Arthritis Research Center, Southwestern Medical Center, Dallas, TX 75235.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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