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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1994-9-12
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pubmed:abstractText |
The aim of this study was to determine whether TNF-alpha inhibits mPL-II secretion through TNF-RI or TNF-RII, and to investigate the gestational profile of TNF-RI and TNF-RII gene expression. The mouse trophoblast cells from day 12 pregnancy were cultured with or without agonistic polyclonal antibodies directed against the individual TNF-alpha receptors, and mPL-II secretion in the medium was assessed by RIA. Anti-TNF-RI antibody significantly inhibited the mPL-II secretion in a dose- and time-dependent manner, but anti-TNF-RII antibody did not. Moreover, the TNF-RII antibody did not influence the inhibitory effect of the TNF-RI antibody on mPL-II secretion. TNF-RI antibody inhibited the mPL-II gene expression by Northern blot analysis. Amount of the gene expression of TNF-RI in the second half of pregnancy was higher than those in the first half of pregnancy both in vitro and in vivo, although the gene expression of TNF-RII was not detectable by Northern blot analysis using poly(A)+RNA. These results suggest that TNF-RI is a main receptor for TNF-alpha in mouse placenta and that TNF-alpha may have an important role in regulating mPL-II secretion after midpregnancy.
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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 |
Aug
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
202
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1599-605
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:8060345-Animals,
pubmed-meshheading:8060345-Blotting, Northern,
pubmed-meshheading:8060345-Cells, Cultured,
pubmed-meshheading:8060345-Female,
pubmed-meshheading:8060345-Gene Expression Regulation,
pubmed-meshheading:8060345-Mice,
pubmed-meshheading:8060345-Placenta,
pubmed-meshheading:8060345-Placental Lactogen,
pubmed-meshheading:8060345-Pregnancy,
pubmed-meshheading:8060345-Receptors, Tumor Necrosis Factor,
pubmed-meshheading:8060345-Tumor Necrosis Factor-alpha
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pubmed:year |
1994
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pubmed:articleTitle |
Tumor necrosis factor-alpha (TNF-alpha) inhibits expression of mouse placental lactogen-II through TNF-alpha type-I but not type-II receptor.
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pubmed:affiliation |
Department of Obstetrics and Gynecology, Osaka University Medical School, Japan.
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pubmed:publicationType |
Journal Article
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