基于结构的选和分子对接与自然二次代谢物的动态模拟以准五种不同逆转录病毒的RNA依赖RNA聚合酶
Muhammad Azeem1, Ghulam Mustafa2, Sibtain Ahmed3
1College of Life Sciences, Anhui Normal University, Wuhu, China.
PloS one
|August 5, 2024
概括
这项研究确定了有效抑制病毒RNA依赖RNA聚合酶 (RdRp) 的天然化合物. 这些潜在的抗病毒药物显示出治疗COVID-19和C型肝炎等感染的前景.
科学领域:
- 生物化学 生物化学
- 药理学 药理学是指药理学的学科.
- 计算生物学 计算生物学
背景情况:
- 病毒性疾病代表着一个重要的全球健康挑战.
- 依赖RNA的RNA聚合酶 (RdRp) 对于病毒RNA的合成,转录和复制至关重要.
- 开发针对RdRp的新型抗病毒疗法至关重要.
研究的目的:
- 研究天然二次代谢产物的抗病毒潜力,以对抗病毒RdRp.
- 通过虚拟查,发现具有强大的结合亲和力与五种不同病毒的RdRp酶的新型化合物.
- 确定潜在的药物候选人,用于对抗病毒感染,包括SARS-CoV-2.
主要方法:
- 采用了一个虚拟选策略,结合了分子对接和分子动力学 (MD) 模拟.
- 从SARS-CoV-2,HIV-1,C型肝炎,埃博拉和登革热病毒中评估了选定的天然化合物和RdRp酶之间的相互作用.
- 评估了候选化合物的对接分数,结合模式,分子相互作用和药物相似性.
主要成果:
- 鉴定了几种具有显著抗病毒活性的天然代谢物对病毒RdRp.
- 细胞素Z8,阿斯普尔维诺D和塔拉罗米奥利德D表现出强大的抑制作用,对接得分优于雷梅西维尔.
- MD模拟证实了顶级化合物与其目标RdRp酶的稳定结合超过200 ns.
- 选择的化合物显示出有利的药理特性和低毒性.
结论:
- 自然的二次代谢产物显示出相当大的希望,作为针对病毒RdRp的抗病毒药物.
- 已识别的化合物,包括cytochalasin Z8和aspulvinone D,是针对SARS-CoV-2和其他病毒性疾病的药物重定位的潜在候选者.
- 建议进行进一步的实验验证,以确认这些化合物的疗效和治疗潜力.
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