针对ccccDNA的治疗干预:揭示机制并评估天然产品的功效
Liyuan Hao1,2, Shenghao Li1, Xiaoyu Hu2
1School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
Frontiers in cellular and infection microbiology
|July 2, 2025
概括
天然产品在向乙型肝炎病毒 (HBV) ovalently closed circular DNA (cccDNA) 方面表现有前途,这是慢性感染的关键. 需要进一步的研究来将这些发现转化为治疗HBV治疗的临床治疗方法.
科学领域:
- 肝病学和病毒学.
- 自然产品化学 自然产品化学
- 药物发现 药物发现 药物发现
背景情况:
- 乙型肝炎病毒 (HBV) 感染是全球主要的健康问题,导致肝硬化和肝细胞癌 (HCC).
- 肝细胞中共价闭环形DNA (cccDNA) 的持久性使得HBV对当前的抗病毒疗法具有耐药性.
- 消除ccccDNA对于实现慢性HBV感染的最终治愈至关重要.
研究的目的:
- 审查具有专门向和消除HBVccDNA的潜力的天然产品.
- 阐明这些天然化合物调节ccccDNA活性的分子机制.
- 为了突出前临床发现和临床应用之间的翻译差距,用于HBVcccDNA清除.
主要方法:
- 对针对HBVcccDNA的天然产品进行研究的研究文献综述.
- 分析分子机制,包括干扰ccccDNA形成,表观遗传调节和转录.
- 关于特定化合物的数据摘要,如脱基兰西福林,甲基乙酸盐,黄素,EGCG和亚洲化物.
主要成果:
- 几种天然产品,包括脱基兰提福林,甲基,黄素,表甲基酸盐 (EGCG) 和亚洲化物,在临床前研究中显示出对HBVccDNA的抑制作用.
- 这些化合物表现出不同的机制,例如抑制病毒抗原分泌,减少病毒DNA,并直接降低cccDNA水平.
- 具体的例子包括脱基兰提福林 (cccDNA的IC50:8.25μM),甲基合酸 (15.8μM减少细胞内cccDNA),黄素 (30μM减半cccDNA) 和EGCG (22.9μg/ml降低cccDNA约60%).
结论:
- 自然产品为开发针对HBVcccDNA的新策略提供了一个有希望的途径.
- 了解它们的分子机制对于设计有效的HBV向疗法至关重要.
- 这些天然产品对于ccccDNA清除目前缺乏临床验证,这表明需要进一步的翻译研究.
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