消除乙型肝炎病毒感染危害的关键科学问题与突破路径
DOI: 10.12449/JCH260101
利益冲突声明:本文不存在任何利益冲突。
作者贡献声明:王怡雪负责归纳文献并撰写论文;彭博负责查阅并归纳文献;魏磊、龙泉鑫、夏宇尘负责修改论文;孙银燕负责撰写并修改论文;李文辉负责指导撰写并修改论文。
Key scientific issues and breakthrough paths to eliminate the harm of hepatitis B virus infection
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摘要: 乙型肝炎病毒(HBV)仅感染肝实质细胞,并在肝实质细胞核内形成共价闭合环状DNA(cccDNA)。HBV cccDNA是病毒基因转录的关键模板、子代病毒产生的唯一来源和病毒抗原表达的起始原因,是HBV持续感染的分子基础。因此,根治HBV慢性感染的关键在于清除和/或功能沉默cccDNA。本文从cccDNA合成、转录、清除及非实质细胞对cccDNA影响的全生命周期角度,讨论消除HBV感染危害所需要解决的科学问题,为未来根治HBV感染提供参考思路。Abstract: Hepatitis B virus (HBV) exclusively infects liver parenchymal cells and forms covalently closed circular DNA (cccDNA) within their nuclei. HBV cccDNA serves as the essential template for viral gene transcription, the sole source of progeny virus production, and the key driver of viral antigen expression, and it is the molecular basis for the persistence of HBV infection. Therefore, elimination and/or functional silencing of cccDNA is the key to eradicate chronic HBV infection. This article discusses the critical scientific issues that need to be solved during elimination of the harm of HBV infection from the perspectives of the synthesis, transcription, and clearance of cccDNA, as well as the impact of nonparenchymal cells on cccDNA, in order to provide a reference for eradicating HBV infection in the future.
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Key words:
- Hepatitis B Virus /
- Covalently Closed Circular DNA /
- Molecular Mechanisms
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