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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1996-11-1
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pubmed:abstractText |
The induction of nitric oxide (NO) by IFN-gamma has been well documented in a variety of experimental settings, but so far there has been no report on whether the endogenously produced NO can suppress IFN-gamma production. In the present study, CD4+ T cells from Listeria monocytogenes-immune mice produced IFN-gamma upon stimulation with specific antigen and NO was generated in culture. When NG-monomethyl-L-arginine (NMMA) was added to the culture at a dose sufficient for the complete blockade of NO production, there was a significant level of enhancement of IFN-gamma production, which was also dose dependently correlated with addition of NMMA. RT-PCR revealed that IFN-gamma mRNA per given amount of total RNA remained the same irrespective of NO blockade by NMMA; however, total RNA recovery was significantly higher in the culture with NMMA. The endogenously produced NO suppressed T-cell proliferation which can be restored by the addition of NMMA. Sodium nitroprusside, a spontaneous NO generator, inhibited T-cell proliferation dose dependently and suppressed IFN-gamma production. Taken together, it may be concluded that NO down-regulates IFN-gamma production mainly by inhibiting T-cell proliferation.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Interferon-gamma,
http://linkedlifedata.com/resource/pubmed/chemical/Nitrates,
http://linkedlifedata.com/resource/pubmed/chemical/Nitric Oxide,
http://linkedlifedata.com/resource/pubmed/chemical/Nitric Oxide Synthase,
http://linkedlifedata.com/resource/pubmed/chemical/Nitroprusside,
http://linkedlifedata.com/resource/pubmed/chemical/RNA,
http://linkedlifedata.com/resource/pubmed/chemical/omega-N-Methylarginine
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0008-8749
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
25
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pubmed:volume |
172
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
118-25
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8806814-Animals,
pubmed-meshheading:8806814-CD4-Positive T-Lymphocytes,
pubmed-meshheading:8806814-Cell Division,
pubmed-meshheading:8806814-Cells, Cultured,
pubmed-meshheading:8806814-Enzyme Activation,
pubmed-meshheading:8806814-Gene Expression,
pubmed-meshheading:8806814-Interferon-gamma,
pubmed-meshheading:8806814-Listeria monocytogenes,
pubmed-meshheading:8806814-Male,
pubmed-meshheading:8806814-Mice,
pubmed-meshheading:8806814-Mice, Inbred C3H,
pubmed-meshheading:8806814-Nitrates,
pubmed-meshheading:8806814-Nitric Oxide,
pubmed-meshheading:8806814-Nitric Oxide Synthase,
pubmed-meshheading:8806814-Nitroprusside,
pubmed-meshheading:8806814-RNA,
pubmed-meshheading:8806814-Spleen,
pubmed-meshheading:8806814-omega-N-Methylarginine
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pubmed:year |
1996
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pubmed:articleTitle |
Suppression of IFN-gamma production from Listeria monocytogenes-specific T cells by endogenously produced nitric oxide.
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pubmed:affiliation |
Department of Bacteriology, Niigata University School of Medicine, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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