| Literature DB >> 9849881 |
S H Ridley1, J L Dean, S J Sarsfield, M Brook, A R Clark, J Saklatvala.
Abstract
The mechanism by which p38 mitogen-activated protein kinase (MAPK) regulates the induction of cyclooxygenase (COX)-2 by interleukin-1 (IL-1) has been investigated in HeLa cells. SB 203580, an inhibitor of p38 MAPK, in the range 0.1-1 microM inhibited IL-1-stimulated PGE2 (but not arachidonic acid) release and this was associated with inhibition of induction of COX-2 protein and mRNA. IL-1 stimulated COX-2 transcription in HeLa cells about 2-fold as judged by both reporter gene and nuclear run-on assays. The inhibitor had no significant effect on this. However, in cells previously stimulated with IL-1 it caused rapid destabilisation of COX-2 mRNA independently of on-going transcription. The results suggest a novel function for p38 MAPK in the regulation of mRNA stability.Entities:
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Year: 1998 PMID： 9849881 DOI： 10.1016/s0014-5793(98)01342-8
Source DB: PubMed Journal: FEBS Lett ISSN： 0014-5793 Impact factor: 4.124