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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
|
pubmed:dateCreated |
1988-2-2
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pubmed:abstractText |
In rabbit aortic smooth muscle cells (SMC), protein kinase C-activating 12-O-tetradecanoylphorbol-13-acetate (TPA) inhibited the whole blood serum (WBS)-induced DNA synthesis. The inhibitory action of TPA was mimicked by another protein kinase C-activating phorbol ester, phorbol-12,13-dibutyrate (PDBu), but not by 4 alpha-phorbol-12,13- didecanoate known to be inactive for this enzyme. Prolonged treatment of the cells with PDBu caused the down-regulation of protein kinase C. In these cells, WBS still induced DNA synthesis but the inhibitory action of TPA was abolished. DNA synthesis started at 18 h and reached a maximal level 24 h after the addition of WBS. TPA inhibited the WBS-induced DNA synthesis even when added 12 h after the addition of WBS. These results suggest that protein kinase C has an antiproliferative action in rabbit aortic SMC and that this action is attributed to the inhibition of the progression from the late G1 into S phase of the cell cycle. TPA also inhibited the phospholipase C-mediated hydrolysis of phosphoinositides which was induced by WBS within several minutes, but the relevance of this effect on the antiproliferative action of TPA is uncertain.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
|
pubmed:issn |
0014-4827
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
173
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
504-14
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:2826192-Animals,
pubmed-meshheading:2826192-Aorta, Thoracic,
pubmed-meshheading:2826192-Cell Division,
pubmed-meshheading:2826192-Cells, Cultured,
pubmed-meshheading:2826192-Hydrolysis,
pubmed-meshheading:2826192-Interphase,
pubmed-meshheading:2826192-Male,
pubmed-meshheading:2826192-Muscle, Smooth,
pubmed-meshheading:2826192-Phosphatidylinositols,
pubmed-meshheading:2826192-Protein Kinase C,
pubmed-meshheading:2826192-Rabbits,
pubmed-meshheading:2826192-Tetradecanoylphorbol Acetate
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pubmed:year |
1987
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pubmed:articleTitle |
Antiproliferative action of protein kinase C in cultured rabbit aortic smooth muscle cells.
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pubmed:affiliation |
Department of Internal Medicine, Kobe University School of Medicine, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|