Faculty Collaboration Database

Distinct regulation of hepatitis B virus biosynthesis by peroxisome proliferator-activated receptor gamma coactivator 1alpha and small heterodimer partner in human hepatoma cell lines. J Virol 2009 Dec;83(23):12545-51

Date

10/02/2009

Pubmed ID

19793803

Pubmed Central ID

PMC2786761

DOI

10.1128/JVI.01624-09

Scopus ID

2-s2.0-70450195715 (requires institutional sign-in at Scopus site)   17 Citations

Abstract

The human hepatoma cell lines HepG2 and Huh7 have been used extensively to study hepatitis B virus (HBV) transcription and replication. Both cell lines support transcription of the 3.5-kb viral pregenomic RNA and subsequent viral DNA synthesis by reverse transcription. The effects of the coactivator peroxisome proliferator-activated receptor gamma coactivator 1alpha (PGC1alpha) and corepressor small heterodimer partner (SHP) on HBV transcription and replication mediated by nuclear receptors were examined in the context of individual nuclear receptors in nonhepatoma cells and in hepatoma cells in an attempt to determine the relative contribution of the various nuclear receptors to viral biosynthesis in the hepatoma cells. PGC1alpha and SHP modulated viral biosynthesis differently in the human hepatoma cell lines HepG2 and Huh7, indicating distinct modes of transcriptional regulation. Consistent with this suggestion, it appears that retinoid X receptor alpha/farnesoid X receptor alpha and liver receptor homolog 1 or estrogen-related receptor beta (ERRbeta) may contribute to the majority of the viral replication observed in HepG2 cells, whereas ERRalpha and ERRgamma are probably responsible for the majority of viral biosynthesis in Huh7 cells. Therefore, this approach indicates that the transcriptional regulation of HBV biosynthesis in HepG2 and Huh7 cells is primarily controlled by different transcription factors.

Author List

Ondracek CR, Reese VC, Rushing CN, Oropeza CE, McLachlan A

Author

Vanessa Mcfadden MD Associate Professor in the Pediatrics department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Cell Line
Heat-Shock Proteins
Hepatitis B virus
Host-Pathogen Interactions
Humans
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha
RNA, Viral
Receptors, Cytoplasmic and Nuclear
Transcription Factors
Transcription, Genetic
Virus Replication