Modulation of NF-κB activation by resveratrol in LPS treated human intestinal cells results in downregulation of PGE(2) production and COX-2 expression.

Abstract

Resveratrol is a natural phytoalexin present in a variety of plant species, such as grapes and red wine, that is well known for its anti-inflammatory effects. In addition, a cancer chemotherapeutic activity of resveratrol has been described. Here we evaluated the effect of resveratrol on COX-2 and prostaglandin E 2 production in human intestinal cells Caco-2 cells treated with lipopolysaccharide (LPS). Resveratrol concentration-dependently inhibited the expression of COX-2 mRNA in the LPS-treated cells, as well as protein expression, resulting in a decreased production of PGE 2. In order to investigate the mechanisms through which resveratrol exhibited these anti-inflammatory effects, we examined the activation of IκB in LPS-stimulated intestinal cells. Results demonstrated that resveratrol inhibited the translocation of NF-κB p65 subunits from the cytosol to the nucleus, which correlated with its inhibitory effects on IκBα phosphorylation and degradation. These results suggest that the down-regulation of COX-2 and PGE 2 by resveratrol may be related to NF-κB inhibition through the negative regulation of IKK phosphorylation in intestinal cells.


Tutti gli autori

  • CIANCIULLI A.;PANARO M.A.;CALVELLO R.

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2012

ISSN

0887-2333

ISBN

Non Disponibile


Numero di citazioni Wos

25

Ultimo Aggiornamento Citazioni

Non Disponibile


Numero di citazioni Scopus

29

Ultimo Aggiornamento Citazioni

Non Disponibile


Settori ERC

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Codici ASJC

Non Disponibile