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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1990-10-12
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pubmed:abstractText |
T cell fibronectin (FN) is a product of antigen and mitogen activated human, murine and guinea pig T lymphocytes. Operationally and functionally, T cell FN is a lymphokine associated with delayed hypersensitivity. T cell FN acts at femtomolar concentrations to agglutinate mononuclear phagocytes and translocate monocytes and neutrophils through model extracellular matrices, and is 1.1 x 10(4) to 2.3 x 10(6) times more potent than other FN for these activities. It does not act on peripheral blood lymphocytes. Macrophage agglutination mediated by T cell FN requires cellular metabolism and depends on interactions between multiple classes of cell surface protein receptors and FN gelatin- and cell-binding domains. In contrast, translocation of cells through artificial matrices mediated by T cell FN is a biophysical process dependent on interactions between surface heparan sulfates on responding cells and FN amino-terminal heparin-binding and gelatin-binding domains. The correlation between the ability of cloned murine T cell lines to produce FN and their ability to transfer delayed hypersensitivity reactions suggests that secretion of T cell FN may be an important element in the initiation of these responses. The double activity of T cell FN could allow it to enhance influx of phagocytic effector cells and retain monocytes at tissue sites of T cell activation.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Fibronectins,
http://linkedlifedata.com/resource/pubmed/chemical/Integrins,
http://linkedlifedata.com/resource/pubmed/chemical/Lymphokines,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Fibronectin,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Immunologic,
http://linkedlifedata.com/resource/pubmed/chemical/macrophage aggregation factor
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pubmed:status |
MEDLINE
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pubmed:issn |
0277-6766
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
9
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
435-47
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2144604-Animals,
pubmed-meshheading:2144604-Extracellular Matrix,
pubmed-meshheading:2144604-Fibronectins,
pubmed-meshheading:2144604-Humans,
pubmed-meshheading:2144604-Hypersensitivity, Delayed,
pubmed-meshheading:2144604-Inflammation,
pubmed-meshheading:2144604-Integrins,
pubmed-meshheading:2144604-Lymphokines,
pubmed-meshheading:2144604-Molecular Structure,
pubmed-meshheading:2144604-Receptors, Fibronectin,
pubmed-meshheading:2144604-Receptors, Immunologic,
pubmed-meshheading:2144604-T-Lymphocytes
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pubmed:year |
1990
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pubmed:articleTitle |
T cell fibronectin: an unexpected inflammatory lymphokine.
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pubmed:affiliation |
Department of Pathology, New York Medical College, Basic Science, Valhalla.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Review
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