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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1979-9-1
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pubmed:abstractText |
The biologic activities of helper T cell-replacing factors derived from concanavalin A-stimulated murine T cells (TRF-T) and from lipopolysaccharide-activated macrophages (TFR-M) have been compared. TRF-T stimulates immune responses to heterologous erythrocyte antigens (SRBC and BRBC) in T cell-depleted spleen cultures but not in macrophage-depleted spleen cultures. TRF-M stimulates immune responses in both T cell-depleted and macrophage-depleted spleen cultures. Under conditions where LPS stimulates the release of TRF-M from cultures of activated macrophages, TRF-t has no effect on TFR-M production. Thus. TRF-T does not appear to function by stimulating the release of TRF-M from macrophages. In macrophage-depleted spleen cultures, saturating concentrations of TRF-T and TRF-M when mixed together exhibit striking synergistic effects on the induction of immune responses to erythrocyte antigens. The kinetics of the synergistic effects of TRF-M and TRF-T are consistent with an effect of TRF-M on the production of TRF-T sensitive B cells.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0022-1767
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
122
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1371-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:312838-Animals,
pubmed-meshheading:312838-Antibody Formation,
pubmed-meshheading:312838-B-Lymphocytes,
pubmed-meshheading:312838-Immunity, Cellular,
pubmed-meshheading:312838-Macrophages,
pubmed-meshheading:312838-Male,
pubmed-meshheading:312838-Mice,
pubmed-meshheading:312838-Mice, Inbred BALB C,
pubmed-meshheading:312838-Mice, Inbred C3H,
pubmed-meshheading:312838-Perissodactyla,
pubmed-meshheading:312838-Sheep,
pubmed-meshheading:312838-Spleen,
pubmed-meshheading:312838-T-Lymphocytes
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pubmed:year |
1979
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pubmed:articleTitle |
Helper T cell-replacing factors secreted by thymus-derived cells and macrophages: cellular requirements for B cell activation and synergistic properties.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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