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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1983-5-27
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pubmed:abstractText |
Phorbol myristate acetate (PMA) is a potent inducer of T colony formation by peripheral blood lymphocytes. A mean cloning efficiency of 0.3% (0.05-0.5%) is obtained with PMA concentrations of 100-1000 ng/ml. PMA-induced T colony formation does not require the presence of monocytes and therefore differs from other mitogens in this respect. Purified T-colony-promoting activity (TCPA) (devoid of phytohaemagglutinin (PHA)) increases PMA-induced T colony numbers and induces T colony formation at low PMA doses (0.01 to 1 ng), concentrations at which no T colonies are detected in the absence of added TCPA. PMA-induced colonies are mainly composed of cells bearing Fc receptors for IgM (54%), which is not the case for colonies obtained with PHA (11%). PMA-induced colony cells do not bind OKT3 and OKT4 monoclonal antibodies, whereas 23% are able to bind OKT8 antibody. These results demonstrate that PMA is a potent inducer of T colony formation and may therefore serve as a useful tool for the study of T-cell differentiation.
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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 |
Apr
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pubmed:issn |
0300-9475
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
17
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
329-34
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:6601295-Antigens, Surface,
pubmed-meshheading:6601295-Colony-Forming Units Assay,
pubmed-meshheading:6601295-Humans,
pubmed-meshheading:6601295-Lymphocyte Activation,
pubmed-meshheading:6601295-Phorbols,
pubmed-meshheading:6601295-Rosette Formation,
pubmed-meshheading:6601295-T-Lymphocytes,
pubmed-meshheading:6601295-Tetradecanoylphorbol Acetate
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pubmed:year |
1983
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pubmed:articleTitle |
Induction of human T colony formation by phorbol myristate acetate.
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pubmed:publicationType |
Journal Article
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