Format

Send to

Choose Destination
Int J Biochem Cell Biol. 2011 Feb;43(2):230-7. doi: 10.1016/j.biocel.2009.11.016. Epub 2009 Nov 24.

Multiple nuclear receptors may regulate hepatitis B virus biosynthesis during development.

Author information

1
Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612-7344, USA. vreese2@uic.edu

Abstract

Hepatitis B virus (HBV) replicates by the reverse transcription of the viral 3.5 kb pregenomic RNA. Therefore the level of expression of this transcript in the liver is a primary determinant of HBV biosynthesis. In vivo neonatal transcription of the HBV 3.5 kb pregenomic RNA is developmental regulated by hepatocyte nuclear factor 4α (HNF4α). In addition, viral biosynthesis in non-hepatoma cells can be supported directly by this nuclear receptor. However HBV transcription and replication can be supported by additional nuclear receptors including the retinoid X receptor α/peroxisome proliferator-activated receptor α (RXRα/PPARα), retinoid X receptor α/farnesoid X receptor α (RXRα/FXRα), liver receptor homolog 1 (LRH1) and estrogen-related receptors (ERR) in non-hepatoma cells. Therefore during neonatal liver development, HNF4α may progressively activate viral transcription and replication by binding directly to the proximal HNF4α recognition sequence within the nucleocapsid promoter. Alternatively, HNF4α may support viral biosynthesis in vivo indirectly by activating a network of liver-enriched nuclear receptors that, in combination, direct HBV 3.5 kb pregenomic RNA transcription and replication.

PMID:
19941970
PMCID:
PMC3773232
DOI:
10.1016/j.biocel.2009.11.016
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Elsevier Science Icon for PubMed Central
Loading ...
Support Center