Role of protein kinase C in insulin's regulation of c-fos transcription.
نویسندگان
چکیده
منابع مشابه
Insulin's regulation of c-fos gene transcription in hepatoma cells.
In H4IIE rat hepatoma cells insulin interacts with its receptors to induce DNA synthesis and promote cell division. However, the postreceptor events that lead to DNA synthesis and cell division have not been well characterized. Previous studies indicate that insulin can regulate the expression of several genes in H4 cells. One of these genes is the proto-oncogene c-fos, a cellular gene whose de...
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Insulin can stimulate the expression of c-fos and other immediate early genes in many insulin-sensitive cell types. We found previously that this effect of insulin was essentially normal in cells in which protein kinase C (PKC) was down-regulated by 16 h of exposure to 16 microM phorbol 12-myristate 13-acetate (PMA). However, recent studies by other groups have suggested that much of the insuli...
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Protein kinase C has been in the spotlight since the discovery two decades ago that it is activated by the lipid second messenger diacylglycerol. Despite protein kinase C's enduring stage presence, the regulation and specific roles of its isozymes in defined cellular processes are still under intense investigation. Elucidation of the structures of protein kinase C's regulatory modules, the disc...
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We have shown that transferred lysophosphatidylcholine (lysoPC) from oxidized low-density lipoprotein (OxLDL) to endothelial surface membrane activates protein kinase C (PKC) in endothelial cells, suggesting that Ox-LDL could alter endothelial functions through PKC activation. The purposes of the present study were to examine whether the endothelial susceptibility to polymorphonuclear leukocyte...
متن کاملDual role of protein kinase C on BK channel regulation.
Large conductance voltage- and Ca(2+)-activated potassium channels (BK channels) are important feedback regulators in excitable cells and are potently regulated by protein kinases. The present study reveals a dual role of protein kinase C (PKC) on BK channel regulation. Phosphorylation of S(695) by PKC, located between the two regulators of K(+) conductance (RCK1/2) domains, inhibits BK channel...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1992
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)50411-2