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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1982-3-13
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pubmed:abstractText |
Schistosoma mansoni granuloma modulation was first described in an in vivo murine model of schistosomiasis and was characterized as a diminished cellular responsiveness to newly formed eggs in chronic infections. This phenomenon of modulation was studied using an in vitro model of granuloma formation. Negative selection procedures using anti-Lyt-1.2, 2.2, and Qa-1 sera and complement on spleen cell populations from normal or S. mansoni-infected C57BL/6 or (C57BL/6 X A/J)F1 mice were examined for their effect on in vitro granuloma formation or modulation. These data suggest that there is a Lyt-1+2-, Qa-1+ T cell present in chronically infected spleen cells that is capable of inducing feedback suppression. In addition, selective removal of a population of Lyt-1-2+ T cells from chronically infected spleen cells augmented the ability of that population to form granulomas in vitro. The selective removal of Lyt-1+2- cells ablated the ability of chronically infected spleen cells to form in vitro granulomas. Granuloma formation is primarily dependent on a population of Lyt-1+, Qa-1+ cells, and modulation is dependent on 2 populations, 1 acting directly (Lyt-1-2+) and the other through a (Lyt-1+2-, Qa-1+) feedback mechanism of suppression.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0022-1767
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
128
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
37-42
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6976377-Acute Disease,
pubmed-meshheading:6976377-Animals,
pubmed-meshheading:6976377-Antilymphocyte Serum,
pubmed-meshheading:6976377-Cell Separation,
pubmed-meshheading:6976377-Chronic Disease,
pubmed-meshheading:6976377-Complement System Proteins,
pubmed-meshheading:6976377-Female,
pubmed-meshheading:6976377-Granuloma,
pubmed-meshheading:6976377-Hypersensitivity, Delayed,
pubmed-meshheading:6976377-Male,
pubmed-meshheading:6976377-Mice,
pubmed-meshheading:6976377-Mice, Inbred A,
pubmed-meshheading:6976377-Mice, Inbred C57BL,
pubmed-meshheading:6976377-Ovum,
pubmed-meshheading:6976377-Schistosoma mansoni,
pubmed-meshheading:6976377-T-Lymphocytes
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pubmed:year |
1982
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pubmed:articleTitle |
Delayed hypersensitivity granuloma formation and modulation around Schistosoma mansoni eggs in vitro. II. Regulatory T cell subsets.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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