使用天然基的新型广谱抗病毒核糖类相应物的设计 - 戒指打开策略
Xingyi Du1,2, Xingxing Yang1,3, Jianyuan Zhao4
1Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University, Shenyang, China.
Drug development research
|July 20, 2024
概括
研究人员使用"开环"策略开发了新的核类相应物,以对抗RNA病毒感染. 化合物38a显示出广泛的抗病毒活性,在抗A型流感病毒方面表现优于瑞巴维林.
科学领域:
- 药用化学 医学化学
- 病毒学 病毒学
- 药物发现 药物发现 药物发现
背景情况:
- RNA病毒感染给全球健康带来了挑战,推动了对新的抗病毒疗法的需求.
- 依赖RNA的RNA聚合酶 (RdRp) 是广谱抗病毒核酸类型的保存标.
- 传统的核酸模拟设计在探索新化学空间时面临限制.
研究的目的:
- 探索一种"开环"策略,用于设计新的基础模仿.
- 合成和评估具有潜在广泛抗病毒活性的新核类型.
- 为进一步抗病毒药物开发确定有前途的候选人.
主要方法:
- 合成了29种新型化合物,其特点是模仿"开环"的基.
- 使用流感A病毒RdRp模型进行高通量查.
- 抗病毒活性和细胞毒性测定对各种RNA病毒 (流感A,冠状病毒229E,膀性口炎病毒).
主要成果:
- 与利巴维林 (IC50 = 11.43 μM) 相比,化合物38a对流感A病毒 (IC50 = 9.95 μM) 具有更强的抑制活性.
- 化合物38a也表现出对冠状病毒229E (IC50 = 30.82 μM) 的抑制活性.
- 化合物42和46f显示出82%的膀性口腔炎病毒的抑制,细胞毒性较低.
结论:
- "打开环"的策略是可行的,用于设计有效的核糖类相似物.
- "开环"核化物可能由于增加极性而带来优势.
- 需要进一步优化,包括前药物设计和构造限制,以提高抗病毒疗效.
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