| Literature DB >> 2784674 |
J Pfeilschifter1, W Pignat, K Vosbeck, F Märki.
Abstract
Treatment of rat glomerular mesangial cells with recombinant human interleukin 1 alpha (rIL-1 alpha), recombinant human interleukin 1 beta (rIL-1 beta) or recombinant human tumor necrosis factor (rTNF) induces prostaglandin E2 (PGE2) synthesis and the release of a phospholipase A2 (PLA2) activity. rIL-1 beta is significantly more potent than rIL-1 alpha or rTNF in stimulating PGE2 as well as PLA2 release from mesangial cells. When given together, rTNF interacts in a synergistic fashion with rIL-1 alpha and rIL-1 beta to enhance both, PGE2 synthesis and PLA2 release. The released PLA2 has a neutral pH optimum and is calcium-dependent. Pretreatment of cells with actinomycin D or cycloheximide inhibits basal and cytokine-stimulated PGE2 and PLA2 release.Entities:
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Year: 1989 PMID: 2784674 DOI: 10.1016/0006-291x(89)90003-x
Source DB: PubMed Journal: Biochem Biophys Res Commun ISSN: 0006-291X Impact factor: 3.575