Cholestan-3beta,5alpha,6beta-triol, but not 7-ketocholesterol, suppresses taurocholate-induced mucin secretion by cultured dog gallbladder epithelial cells.

Abstract:

:In order to investigate oxysterol-mediated effects on the biliary system, we studied the effects of cholestan-3beta,5alpha,6beta-triol (TriolC) and 7-ketocholesterol (7KC) on gallbladder epithelial cells. We compared their cell proliferation effects in cultured dog gallbladder epithelial cells (DGBE) to their effects in cultured human pulmonary artery endothelial cells (HPAE). Oxysterols inhibited cell proliferation in a dose-dependent fashion. Oxysterols inhibited cell growth to 50% of control at a higher dose for DGBE cells than for HPAE cells. TriolC was more cytotoxic than 7KC. We also investigated the effect of oxysterols on bile salt-induced mucin secretion by DGBE cells. TriolC suppressed mucin secretion by DGBE cells, whereas 7KC did not. These findings support the hypothesis that biliary oxysterols affect gallbladder mucosal function.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Yoshida T,Klinkspoor JH,Kuver R,Wrenn SP,Kaler EW,Lee SP

doi

10.1016/s0014-5793(00)01831-7

keywords:

subject

Has Abstract

pub_date

2000-07-28 00:00:00

pages

113-8

issue

1-2

eissn

0014-5793

issn

1873-3468

pii

S0014-5793(00)01831-7

journal_volume

478

pub_type

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