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FEBS Lett. 1995 Sep 18;372(1):83-7.

Induction of vascular endothelial growth factor expression in synovial fibroblasts by prostaglandin E and interleukin-1: a potential mechanism for inflammatory angiogenesis.

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1
Department of Molecular Biology, Holland Laboratory, American Red Cross, Rockville, MD 20855, USA.

Abstract

Inflammatory mediators such as prostaglandin E2 (PGE2) and interleukin-1 (IL-1) induce angiogenesis by yet undefined mechanisms. We demonstrate that PGE2 and IL-1 induces the expression of vascular endothelial growth factor (VEGF), a selective angiogenic factor by rheumatoid synovial fibroblast cells. Transcripts for the EP1 and EP2 subtypes of PGE receptors are expressed in synovial fibroblasts. Activators of protein kinase A pathway stimulated the expression of VEGF whereas down-regulation of protein kinase C did not influence the PGE effect, suggesting that signalling from the EP2 receptor via the protein kinase A pathway is important. The induction of VEGF expression by PGE2 and interleukin-1 alpha may be an important mechanism in inflammatory angiogenesis.

PMID:
7556649
[Indexed for MEDLINE]
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