Korean J Hepatol.  2006 Mar;12(1):5-15.

Role of PXR and CAR in Cholestasis

Affiliations
  • 1Department of Internal Medicine, College of Medicine, Dongguk University, Gyeongju, Korea.

Abstract

Cholestatic liver diseases are characterized by impairments of bile flows and accumulations of biliary constituents such as bile acids and bilirubin. The changes of phase I and II metabolism and the hepatobiliary transport system minimize cholestatic liver injury. These adaptive responses are transcriptionally regulated by several nuclear receptors. Recent studies have revealed that the pregnane X receptor (PXR) and the constitutive androstane receptor (CAR) are key nuclear receptors for regulating many of the adaptive responses noted in cholestasis. PXR and CAR coordinately regulate not only bile acid metabolism and transport, but also bilirubin clearance. PXR and CAR ligands may be useful in the future for the treatment of cholestatic liver disease.

Keyword

Cholestasis; PXR; CAR

MeSH Terms

Transcription Factors/metabolism/*physiology
Receptors, Steroid/metabolism/*physiology
Receptors, Cytoplasmic and Nuclear/metabolism/*physiology
Humans
Cholestasis/metabolism/*physiopathology
Full Text Links
  • KJHEP
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr