氨基酸B4抑制了SARS-CoV-2的复制体外和体内
Mingyue Xiao1, Ronghua Luo2, Qinghua Liang1
1College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China.
Chinese herbal medicines
|February 20, 2024
概括
化物B4 (AB4) 通过通过RLR途径增强干扰素-β反应,有效抑制SARS-CoV-2复制. 这种天然化合物也影响RNA代谢,显示出作为抗SARS-CoV-2候选药物的潜力.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 众所周知,化物B4 (AB4) 是来自*Pulsatilla chinensis*的氨酸,可以抑制其他感染.
- AB4的抗SARS-CoV-2活性仍未得到研究.
研究的目的:
- 确定AB4对SARS-CoV-2的抗病毒活性.
- 阐明AB4在抑制SARS-CoV-2 *in vitro*和 *in vivo*中的作用机制.
主要方法:
- 细胞毒性试验 (CCK8) 和使用感染细胞系的*体外*抗病毒试验 (HEK293T,HPAEpiC,Vero E6).
- 在 SARS-CoV-2 感染的转基因小鼠模型中评估的 * in vivo * 疗效.
- 蛋白质组学和生物信息学分析以探索机制,包括I型IFN信号通路评估.
主要成果:
- 在小鼠中,AB4降低了SARS-CoV-2的传播,病毒蛋白 (N,S,3CLpro) 和肺炎.
- 抗病毒活性与通过RIG-I类受体 (RLR) 途径增强的干扰素β反应相关.
- 蛋白质组分析确定了改变的蛋白质,主要参与RNA代谢.
结论:
- AB4通过RLR途径激活和RNA代谢的调节来抑制SARS-CoV-2的复制.
- AB4显示出作为开发新型抗SARS-CoV-2疗法的主要化合物的潜力.
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