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Updated: May 10, 2026
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Modeling Hepatitis B Virus Infection in Non-Hepatic 293T-NE-3NRs Cells
Published on: June 5, 2020
Establishment and application of hepatitis B virus persistent replication model in IFNAR(-/-) mouse
Ming-Fa Chen1,2, Yong Lin1, You-Chen Xia1
1Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
Summary
Type I interferon and its receptor are not essential for entecavir
Area of Science:
- Hepatology and Virology
- Immunology
Background:
- Type I interferon (IFN) and the type I interferon receptor (IFNAR) are implicated in hepatitis B virus (HBV) infection and treatment.
- The precise role and mechanism of action of type I IFN and IFNAR in HBV infection remain incompletely understood.
Purpose of the Study:
- To investigate the role of type I interferon and IFNAR in HBV infection and anti-HBV therapy.
- To establish and utilize a persistent HBV replication IFNAR knockout (IFNAR(-/-)) mouse model.
Main Methods:
- Generation of a persistent HBV replication mouse model lacking IFNAR.
- Hydrodynamic injection of pAAV/HBV1.2 plasmid to establish HBV replication.
- Treatment of mice with entecavir (ETV) or normal saline (NS) to assess antiviral effects.
Main Results:
- ETV treatment significantly suppressed serum HBV DNA levels in both wild-type and IFNAR(-/-) mice.
- No significant differences in serum HBsAg, HBeAg, or liver HBcAg expression were observed between ETV-treated and control groups.
- Serum HBV DNA levels were comparable between ETV-treated IFNAR(-/-) and wild-type mice, indicating HBV suppression is independent of type I interferon signaling.
Conclusions:
- HBV suppression by entecavir does not rely on type I interferon or IFNAR signaling.
- The established persistent HBV replication IFNAR(-/-) mouse model is a valuable tool for studying type I interferon and IFNAR functions in HBV infection and treatment.
