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Erschienen in: Journal of Hepato-Biliary-Pancreatic Sciences 5/2011

01.09.2011 | Original article

Cytoprotective properties of rifampicin are related to the regulation of detoxification system and bile acid transporter expression during hepatocellular injury induced by hydrophobic bile acids

verfasst von: Raúl González, Adolfo Cruz, Gustavo Ferrín, Pedro López-Cillero, Javier Briceño, Miguel A. Gómez, Sebastián Rufián, Javier Padillo, Manuel De la Mata, Jose J. G. Marin, Jordi Muntané

Erschienen in: Journal of Hepato-Biliary-Pancreatic Sciences | Ausgabe 5/2011

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Abstract

Background/Purpose

Rifampicin has been used for the treatment of patients with jaundice and pruritus. This study evaluated the effect of rifampicin on the expression of different detoxification systems and bile acid transporters during in-vivo and in-vitro experimental models of cholestasis.

Methods

Rifampicin was administered to glycochenodeoxycholic acid (GCDCA)-treated human hepatocytes and bile duct-obstructed rats. Different parameters related to cell death, and the expression of phase I and II drug metabolizing enzymes (DME) and bile acid transporters were determined.

Results

The induction of hepatocellular injury induced by cholestasis was associated with a reduction in cytochrome P4503A4 (CYP3A4), CYP7A1, and UDP-glucuronosyltransferase 2B4 (UGT2B4) expression, as well as an increase in import (Na+-taurocholate co-transporting polypeptide, NTCP) system expression. The beneficial properties of rifampicin were associated with an increase in DME and export bile acid systems (multidrug resistance-associated protein 4, MRP4, and bile acid export pump to bile duct, BSEP) expression, as well as a reduction in NTCP expression.

Conclusions

The beneficial effect of rifampicin in cholestasis is associated with an increase in DME expression involved in toxic, bile acid and cholesterol metabolism, as well as a reduction in the bile acid importing system in hepatocytes.
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Metadaten
Titel
Cytoprotective properties of rifampicin are related to the regulation of detoxification system and bile acid transporter expression during hepatocellular injury induced by hydrophobic bile acids
verfasst von
Raúl González
Adolfo Cruz
Gustavo Ferrín
Pedro López-Cillero
Javier Briceño
Miguel A. Gómez
Sebastián Rufián
Javier Padillo
Manuel De la Mata
Jose J. G. Marin
Jordi Muntané
Publikationsdatum
01.09.2011
Verlag
Springer Japan
Erschienen in
Journal of Hepato-Biliary-Pancreatic Sciences / Ausgabe 5/2011
Print ISSN: 1868-6974
Elektronische ISSN: 1868-6982
DOI
https://doi.org/10.1007/s00534-011-0396-3

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