PMID: 20651339Jul 24, 2010Paper

Guggulsterone suppresses bile acid-induced and constitutive caudal-related homeobox 2 expression in gut-derived adenocarcinoma cells

Anticancer Research
Takanori YamadaMutsuhiro Ikuma

Abstract

Guggulsterone, a plant polyphenol guggulipid, has several antitumour effects and acts as an antagonist for the farnesoid X receptor. Although bile acids induce caudal-related homeobox 2 (CdX2), a transcription factor essential for intestinal development and gut tumourigenesis, the effects of guggulsterone on regulation of CdX2 in the gut are unknown. Regulation of CdX2 expression by treatment with bile acids and/or guggulsterone was analysed by immunoblot analysis in human gut-derived adenocarcinoma, Bic-1 cells. Nuclear factor-kappaB (NF-kappaB) activity and the cell cycle distribution were also examined. Chenodeoxycholic acid and deoxycholic acid increased CdX2 expression in Bic-1 cells. Guggulsterone reduced bile acid-induced and constitutive CdX2 expression at 5 microM. Guggulsterone (up to 5 microM) did not affect cell viability or the cell cycle and did not attenuate bile acid-induced or constitutive NF-kappaB activation. Guggulsterone may be used as a novel drug to target CdX2 expression in certain gut adenocarcinomas.

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