Title : Inhibition of NFkappaB-mediated interleukin-1beta-stimulated prostaglandin E2 formation by the marine natural product hymenialdisine.

Pub. Date : 1997 Nov

PMID : 9353419






8 Functional Relationships(s)
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1 Inhibition of NFkappaB-mediated interleukin-1beta-stimulated prostaglandin E2 formation by the marine natural product hymenialdisine. hymenialdisine nuclear factor kappa B subunit 1 Homo sapiens
2 Hymenialdisine, a marine natural product has recently been characterized as an inhibitor of NFkappaB activation and exposure of IL-1-stimulated RSF-inhibited PGE2 production in a concentration-dependent manner (IC50 approximately 1 microM). hymenialdisine nuclear factor kappa B subunit 1 Homo sapiens
3 Direct action of hymenialdisine on IL-1-induced NFkappaB activation was demonstrated by a significant reduction (approximately 80%) in NFkappaB binding to the classical kappaB consensus motif (as assessed by electrophoretic mobility shift assay) and inhibition of stimulated p65 migration from the cytosol of treated cells (as assessed by Western analysis). hymenialdisine nuclear factor kappa B subunit 1 Homo sapiens
4 Direct action of hymenialdisine on IL-1-induced NFkappaB activation was demonstrated by a significant reduction (approximately 80%) in NFkappaB binding to the classical kappaB consensus motif (as assessed by electrophoretic mobility shift assay) and inhibition of stimulated p65 migration from the cytosol of treated cells (as assessed by Western analysis). hymenialdisine nuclear factor kappa B subunit 1 Homo sapiens
5 Specificity of action is suggested as IL-1-stimulated interleukin-8 (IL-8) production, which is known to be an NFkappaB-regulated event, was also inhibited by hymenialdisine, whereas IL-1-induced production of vascular endothelial growth factor, a non-NFkappaB-regulated gene, was not affected by exposure to hymenialdisine. hymenialdisine nuclear factor kappa B subunit 1 Homo sapiens
6 Specificity of action is suggested as IL-1-stimulated interleukin-8 (IL-8) production, which is known to be an NFkappaB-regulated event, was also inhibited by hymenialdisine, whereas IL-1-induced production of vascular endothelial growth factor, a non-NFkappaB-regulated gene, was not affected by exposure to hymenialdisine. hymenialdisine nuclear factor kappa B subunit 1 Homo sapiens
7 Taken together, hymenialdisine inhibits IL-1-stimulated-RSF PGE2 formation acting predominately through modulation of NFkappaB activation and offers an interesting novel tool to evaluate the role of NFkappaB in inflammatory disease. hymenialdisine nuclear factor kappa B subunit 1 Homo sapiens
8 Taken together, hymenialdisine inhibits IL-1-stimulated-RSF PGE2 formation acting predominately through modulation of NFkappaB activation and offers an interesting novel tool to evaluate the role of NFkappaB in inflammatory disease. hymenialdisine nuclear factor kappa B subunit 1 Homo sapiens