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Updated: Jul 3, 2026
07:25
Stem Cell-Derived Viral Ag-Specific T Lymphocytes Suppress HBV Replication in Mice
Published on: September 25, 2019
[RtL164V, a mutation possibly associated with lamivudine resistant HBV]
Yu-ping Wang1, Yan-sheng Yan, Jia-ji Jiang
1Department of Pathogenic Microbiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350004, China.
Summary
Lamivudine resistance in chronic hepatitis B is complex. While YMDD mutations are common, novel mutations like rtL164V may also drive resistance, impacting treatment efficacy.
Area of Science:
- Hepatology
- Virology
- Molecular Biology
Context:
- Chronic hepatitis B (CHB) poses a significant global health challenge.
- Lamivudine is a nucleoside analog used to treat CHB.
- Understanding treatment resistance is crucial for optimizing patient outcomes.
Purpose:
- To investigate the role of HBV P-gene structures in lamivudine treatment efficacy.
- To compare P-gene sequences in responders, non-responders, and rebounders before and after lamivudine therapy.
Summary:
- HBV P-gene sequencing revealed genotype shifts (B to C) in some non-responders and rebounders.
- YMDD mutations emerged during therapy in non-responders and rebounders, but were also present pre-treatment.
- The rtL164V mutation was consistently observed in non-responders and rebounders, but not responders, suggesting a link to lamivudine resistance.
Impact:
- Identifies YMDD mutation as insufficient alone to explain lamivudine resistance.
- Highlights rtL164V as a potential novel marker for lamivudine resistance in CHB.
- Informs future therapeutic strategies and resistance monitoring for CHB patients.
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