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

The International Journal of Biochemistry & Cell Biology
Vanessa C ReeseAlan McLachlan

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.

Citations

Aug 6, 2013·Virologica Sinica·Xiaohui TianKanghong Hu
Oct 1, 2011·Future Microbiology·Matthew S Miller, Joe S Mymryk
Feb 18, 2014·Virology Journal·Xiaohui TianKanghong Hu
Sep 10, 2011·Cancer Letters·Shuang WuOsamu Yokosuka
Feb 15, 2011·Clinics and Research in Hepatology and Gastroenterology·Patrice AndréVincent Lotteau
Mar 5, 2019·Alimentary Pharmacology & Therapeutics·Susumu Hamada-TsutsumiYasuhito Tanaka
Dec 4, 2013·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·Claire CurtilChristophe Ramière
Oct 13, 2018·World Journal of Hepatology·Evangelista SagnelliAniello Russo

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