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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1993-4-21
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pubmed:abstractText |
Human intraepithelial lymphocytes (IEL), predominantly CD8+ T-lymphocytes located between intestinal epithelial cells (EC), may represent the first-line immune defense against colon cancer. The mechanism by which IEL bind to the colon cancer line, DLD-1, was evaluated. A larger fraction of IEL than peripheral blood mononuclear cells bound to DLD-1 monolayers (25 +/- 16 versus 8 +/- 4% binding, P < 0.05). Binding increased when DLD-1 monolayers were incubated with interferon-gamma but not with tumor necrosis factor-alpha. Similar numbers of IEL adhered to EC tumors, HT-29 and 5637, and the non-EC tumor, A375, but fewer bound to nonmalignant smooth muscle (HISM) and fibroblast (KD) lines (P < 0.01). Binding of IEL to DLD-1 was reduced by monoclonal antibodies to HML-1 and CD11a (47 +/- 9 and 26 +/- 13% inhibition, respectively) and was completely eliminated by both combined (93 +/- 4% inhibition). Anti-HML-1 also inhibited the binding of IEL to other EC tumors but did not affect binding to non-EC tumors or fibroblasts. To conclude, the binding of IEL to EC tumors is mediated by HML-1 and CD11a [A. I. Roberts, S. M. O'Connell, and E. C. Ebert. Binding of intraepithelial lymphocytes to colon cancer cells is mediated by HML-1 and LFA-1 (abstract). Gastroenterology, 102: A685, 1992].
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pubmed:grant | |
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 |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
53
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1608-11
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8453630-Antigens, Neoplasm,
pubmed-meshheading:8453630-Cell Adhesion,
pubmed-meshheading:8453630-Cell Separation,
pubmed-meshheading:8453630-Colonic Neoplasms,
pubmed-meshheading:8453630-Epithelial Cells,
pubmed-meshheading:8453630-Epithelium,
pubmed-meshheading:8453630-Humans,
pubmed-meshheading:8453630-Immunity, Cellular,
pubmed-meshheading:8453630-Interferon-gamma,
pubmed-meshheading:8453630-Intestines,
pubmed-meshheading:8453630-Lymphocyte Function-Associated Antigen-1,
pubmed-meshheading:8453630-T-Lymphocytes
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pubmed:year |
1993
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pubmed:articleTitle |
Intestinal intraepithelial lymphocytes bind to colon cancer cells by HML-1 and CD11a.
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pubmed:affiliation |
Department of Medicine, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick 08903.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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