Hepatitis B virus (HBV) infects hepatocytes and persists in the form of covalently closed circular DNA (cccDNA), which remains a major obstacle to successful antiviral treatment. In this study, using various HBV models, we demonstrate that the protein SART1 restricts HBV cccDNA transcription by supp …

In the HBV life cycle, hepatocyte nuclear factors (HNFs) play critical roles in covalently closed circular DNA transcription. Control of HNF expression and function could regulate HBV replication. Therefore, understanding the upstream cellular factors or signals involved in the regulation of HNFs is important for controlling HBV replication.

2024年5月16日 · We demonstrate that HNF4A binds to and represses acute-phase genes under basal conditions. The reprogramming of hepatic transcription during inflammation necessitates loss of HNF4A function to...

HNF4α可通过抑制肝星状细胞的活化、逆转上皮间质细胞转化、抑制肝癌细胞增殖、侵袭和转移等机制,参与肝纤维化、肝硬化、肝细胞癌等疾病的发生和变化过程。 阐述了HNF4α的生物学功能,对其参与多种主要肝脏疾病信号通路机制的研究进展进行了分析总结,旨在为进一步发掘这一潜在的肝脏疾病靶向治疗途径提供参考。 Abstract: Hepatocyte nuclear factor 4 alpha ( HNF4α),a member of the nuclear receptor superfamily,has a high expression level in mature hepatocytes.

Hepatocyte nuclear factor 4-alpha (HNF4α) is a highly conserved member of nuclear receptor superfamily of ligand-dependent transcription factors that is expressed in liver and gastrointestinal organs (pancreas, stomach, and intestine).

2021年11月1日 · By screening known HBV transcription factors, we found that SART1 specifically suppressed the expression of hepatocyte nuclear factor 4α (HNF4α). Luciferase reporter and ChIP assays demonstrated a direct downregulation of HNF4α expression by association of SART1 with the HNF4α proximal P1 promoter element.

2012年8月31日 · Here, we report that Mucroporin-M1, a scorpion venom-derived peptide, reduces the amount of extracellular HBsAg, HBeAg, and HBV DNA productions of HepG2.2.15 cells in a dose-dependent manner and inhibits HBV capsid DNA, HBV intracellular RNA replication intermediates and the HBV Core protein in the cytoplasm of HepG2.2.15 cells.

2020年1月31日 · Our data show that HNF4α was suppressed during long-term HBV infection in cultured HepG2-NTCP cells as well as in a mouse model following hydrodynamic injection of pAAV-HBV or in mice intravenously infected with rAAV-HBV.

2024年1月1日 · Hepatocyte nuclear factor 1 alpha (HNF1A), hepatocyte nuclear factor 4 alpha (HNF4A), and forkhead box protein A2 (FOXA2) are key transcription factors that regulate a complex gene network in the liver, creating a regulatory transcriptional loop.

2012年1月18日 · Hepatocyte nuclear factors 4 alpha (HNF4α) and 3 beta (HNF3β) are members of a group of liver-enriched transcription factors (LETFs) that play important roles in regulating the replication of hepatitis B virus (HBV) and liver inflammation.