Cytokine-sensitive replication of hepatitis B virus in immortalized mouse hepatocyte culturest

Valérie Pasquetto, Stefan F. Wieland, Susan L. Uprichard, Marco Tripodi, Francis V. Chisari

Research output: Contribution to journalArticlepeer-review

Abstract

We have previously shown that alpha/beta interferon (IFN-α/β) and gamma interferon (IFN-γ) inhibit hepatitis B virus (HBV) replication by eliminating pregenomic RNA containing viral capsids from the hepatocyte. We have also shown that HBV-specific cytotoxic T lymphocytes that induce IFN-γ and tumor necrosis factor alpha (TNF-α) in the liver can inhibit HBV gene expression by destabilizing preformed viral mRNA. In order to further study the antiviral activity of IFN-α/β, IFN-γ, and TNF-α at the molecular level, we sought to reproduce these observations in an in vitro system. Accordingly, hepatocytes were derived from the livers of HBV-transgenic mice that also expressed the constitutively active cytoplasmic domain of the human hepatocyte growth factor receptor (c-Met). Here, we show that the resultant well-differentiated, continuous hepatocyte cell lines (HBV-Met) replicate HBV and that viral replication in these cells is efficiently controlled by IFN-α/β or IFN-γ, which eliminate pregenomic RNA-containing capsids from the cells as they do in the liver. Furthermore, we demonstrate that IFN-γ, but not IFN-α/β, is capable of inhibiting HBV gene expression in this system, especially when it acts synergistically with TNF-α. These cells should facilitate the analysis of the intracellular signaling pathways and effector mechanisms responsible for these antiviral effects.

Original languageEnglish
Pages (from-to)5646-5653
Number of pages8
JournalJournal of Virology
Volume76
Issue number11
DOIs
Publication statusPublished - 2002

ASJC Scopus subject areas

  • Immunology

Fingerprint Dive into the research topics of 'Cytokine-sensitive replication of hepatitis B virus in immortalized mouse hepatocyte culturest'. Together they form a unique fingerprint.

Cite this