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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
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pubmed:dateCreated |
1996-2-8
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pubmed:abstractText |
The ability of Helicobacter pylori strains to induce interleukin-8 (IL-8) gene expression and protein secretion from gastric epithelial cell lines in vitro is variable. This cellular response is associated with bacterial expression of the CagA protein present in type I H pylori strains. To determine the role of CagA in this host cell response, an isogenic cagA negative mutant, N6.XA3, was constructed. The cagA negative isogenic mutant and the wild-type parental cagA positive strain, N6, were cocultured with AGS, ST-42 and KATO-3 gastric epithelial cell lines and secreted interleukin-8 assayed by enzyme linked immunosorbent assay. In all three cell lines there was no significant difference in the IL-8 secretion induced by the cagA negative isogenic mutant, N6.XA3, and the wild-type parent strain, N6. These studies show that CagA is not the inducer of IL-8 secretion from gastric epithelial cells. As all wild-type CagA positive strains studied to date induce IL-8, the bacterial factor(s) inducing this inflammatory response is closely associated with the expression of CagA.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-1320607,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-1677696,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-7706517,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-7806390,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-7962609,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-8096606,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-8132812,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-8163943,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-8418474,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-8478069,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8537502-8516329
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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 |
Oct
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pubmed:issn |
0021-9746
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
48
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
|
pubmed:pagination |
967-9
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
pubmed-meshheading:8537502-Antigens, Bacterial,
pubmed-meshheading:8537502-Bacterial Proteins,
pubmed-meshheading:8537502-Cells, Cultured,
pubmed-meshheading:8537502-Gastric Mucosa,
pubmed-meshheading:8537502-Gene Expression,
pubmed-meshheading:8537502-Helicobacter pylori,
pubmed-meshheading:8537502-Interleukin-8
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pubmed:year |
1995
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pubmed:articleTitle |
Induction of interleukin-8 secretion from gastric epithelial cells by a cagA negative isogenic mutant of Helicobacter pylori.
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pubmed:affiliation |
Division of Medicine, St James's University Hospital, Leeds.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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