线粒体呼吸链通过 lysosomal 酸化的双调节来调节 HBV 清除
Zhiqiang Wei1, Yanying Yan1, Lingzhu Zhao1
1State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China.
Emerging microbes & infections
|October 7, 2025
概括
慢性乙型肝炎 (CHB) 损害了线粒体功能,导致溶酶体功能障碍和病毒复制增加. 这种功能障碍阻碍了身体清除乙型肝炎病毒 (HBV) 的能力.
科学领域:
- 细胞生物学 细胞生物学
- 病毒学 病毒学
- 线粒体生物学 线粒体生物学
背景情况:
- 在慢性乙型肝炎 (CHB) 患者中观察到线粒体损伤.
- 线粒体功能障碍在持续性乙型肝炎病毒 (HBV) 复制中的特定作用尚不清楚.
- 细胞平衡严重依赖于线粒体的功能.
研究的目的:
- 为了研究线粒体功能障碍如何影响HBV复制.
- 阐明这种相互作用背后的分子机制.
- 探索在HBV感染中线粒体和溶酶体功能之间的联系.
主要方法:
- 使用HBV复制细胞和模型进行体外和体外研究.
- 药理上抑制线粒体呼吸复合体I (rotenone) 和ATP合成 (Oligomycin A).
- 基因操纵 (SOD2淘汰,VPS13A淘汰) 和使用抗氧化剂 (米托金,米托TEMPO).
- 评估线粒体和 lysosomal 功能,反应性氧物种 (mtROS) 水平和HBV复制标志物.
主要成果:
- 乙型肝炎病毒的复制导致线粒体和溶酶体功能障碍.
- 抑制线粒体复合体I增加HBV复制,并通过提高mtROS,恶化 lysosomal功能,并增加 lysosomal pH,损害自降解.
- 独立于mtROS的线粒体功能障碍,还通过抑制v-ATPase组合,减少ATP生产和破坏线粒体-溶解体接触来增加HBV复制.
结论:
- 线粒体功能障碍是HBV持久性的关键因素,损害了自细胞降解途径.
- 乙型肝炎病毒积极抑制线粒体功能,导致溶酶体降解能力降低.
- 准线粒体功能障碍可能为控制HBV复制和增强病毒清除提供一种新的策略.
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