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Modeling Hepatitis B Virus Infection in Non-Hepatic 293T-NE-3NRs Cells
Published on: June 5, 2020
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GP73 facilitates hepatitis B virus replication by repressing the NF-κB signaling pathway
Long Liu1, Jianyong Zhu1, Jing Yang1
1School of Basic Medical Sciences, Department of Respiratory, Department of Infectious Diseases, Renmin Hospital, Hubei University of Medicine, Shiyan, China.
Journal of Medical Virology
|February 21, 2020
Summary
Hepatitis B virus (HBV) infection increases Golgi protein 73 (GP73) production, which in turn promotes HBV replication by suppressing immune responses. GP73 may be a novel target for treating chronic hepatitis B.
Area of Science:
- Hepatology
- Virology
- Immunology
Background:
- Chronic Hepatitis B virus (HBV) infection affects 350 million globally, causing significant hepatic failure deaths.
- Golgi protein 73 (GP73) is a known serum biomarker for liver diseases, including chronic hepatitis B.
Purpose of the Study:
- To investigate the impact of HBV infection on GP73 production.
- To elucidate the role of GP73 in HBV replication.
Main Methods:
- Analysis of GP73 levels in HBV-positive patients and HBV-stimulated cells (leukocytes, PBMCs, macrophages).
- Investigation of GP73 expression regulation by hepatitis B surface antigen (HBsAg) and HBV replication.
- Assessment of GP73's effect on HBV replication and host immune pathways (NF-κB) in liver cell lines (HepG2, Huh7).
Main Results:
- GP73 is highly produced in sera of chronic hepatitis B patients and in HBV-stimulated immune cells.
- Hepatitis B surface antigen (HBsAg) activates GP73 expression, independent of active HBV replication.
- GP73 enhances HBV replication by suppressing innate immunity and the NF-κB signaling pathway, creating a positive feedback loop.
Conclusions:
- A positive feedback mechanism exists between HBV replication and GP73 production.
- GP73 facilitates HBV replication by dampening the host immune response.
- GP73 presents a potential therapeutic target for antiviral strategies against HBV infection.
Keywords:
Golgi protein 73acute viral infectionchronic viral infectionhepatitis B virushepatocellular carcinomanuclear factor-kappa B p50More Related Videos
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