Transforming growth factors type‐β and dexamethasone attenuate group II phospholipase A2 gene expression by interleukin‐1 and forskolin in rat mesangial cells
Open Access
- 20 April 1992
- journal article
- Published by Wiley in FEBS Letters
- Vol. 301 (2) , 190-194
- https://doi.org/10.1016/0014-5793(92)81245-h
Abstract
Treatment of rat mesangial cells with interleukin‐1β(IL‐1β) and forskolin induced, in a synergistic fashion,the expression of group II phospholipase A2 (PLA2) mRNA, with subsequent increased synthesis and secretion of PLA2. In contrast, interleukin‐6 did not increase PLA2 mRNA levels of PLA2 activity. Transforming growth factor (TGF) β1, TGFβ2 and TGFβ3 equipotently attenuated the IL‐1β‐ and forskolin‐induced elevation of PLA2 mRNA, as well as PLA2 synthesis and secretion. The glucocorticoid dexamethasone only partially suppressed the IL‐1β‐ and forskolin‐induced elevation of PLA2 mRNA, but totally inhibited PLA2 synthesis and secretion.Keywords
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