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A Competent Hepatocyte Model Examining Hepatitis B Virus Entry through Sodium Taurocholate Cotransporting Polypeptide as a Therapeutic Target
Published on: May 10, 2022
Host factor-targeted hepatitis B virus therapies
Adam Gehring1, Antonio Bertoletti, John E Tavis
1Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, Mo., USA.
Abstract:
In this review we will focus on host factors known to impact hepatitis B virus (HBV) replication as current or potential targets for therapeutic intervention. Some immunotherapeutic strategies will be discussed because they have the potential to activate interferon-mediated clearance of HBV, but attention will also be paid to host machinery and proteins that silence covalently closed circular DNA, destabilize viral RNA, or disrupt entry and trafficking of HBV virions. Many of these are in the early stages of development, but may represent novel avenues to reduce HBV burden when combined with nucleos(t)ide analogues.
Insights
This review explores host factors targeting hepatitis B virus (HBV) replication. Novel therapeutic strategies aim to enhance viral clearance and reduce HBV burden when combined with existing treatments.
Area of Science:
- Hepatology and Virology
- Immunology and Infectious Diseases
Background:
- Hepatitis B virus (HBV) infection remains a significant global health challenge.
- Current treatments, primarily nucleos(t)ide analogues, effectively suppress viral replication but do not achieve a complete cure.
- Identifying host-directed therapeutic targets is crucial for developing novel strategies to eliminate HBV infection.
Purpose of the Study:
- To review host factors that influence hepatitis B virus (HBV) replication.
- To discuss current and potential therapeutic interventions targeting these host factors.
- To explore novel avenues for reducing the HBV burden, potentially in combination with existing therapies.
Main Methods:
- Literature review of studies on host-pathogen interactions in HBV infection.
- Analysis of immunotherapeutic strategies and their potential for HBV clearance.
- Examination of host machinery involved in HBV replication, including DNA silencing, RNA destabilization, and viral entry/trafficking.
Main Results:
- Several host factors and cellular processes significantly impact HBV replication.
- Immunotherapies show promise in activating interferon-mediated viral clearance.
- Host machinery targeting viral DNA, RNA, entry, and trafficking are under early development.
Conclusions:
- Host-directed therapies represent a promising frontier for managing HBV infection.
- Targeting host factors can complement nucleos(t)ide analogues to achieve a greater reduction in HBV burden.
- Further research and development are needed to translate these early-stage findings into effective clinical interventions.
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