结构和抑制EV-D68,一种导致儿童呼吸系统疾病的病毒
Yue Liu1, Ju Sheng1, Andrei Fokine1
1Department of Biological Sciences, Hockmeyer Hall of Structural Biology, 240 South Martin Jischke Drive, Purdue University, West Lafayette, IN 47907, USA.
Science (New York, N.Y.)
|January 3, 2015
概括
肠道病毒D68 (EV-D68),是导致儿童呼吸系统疾病的原因,使用晶体结构进行了研究. 抗病毒药物pleconaril有效抑制了EV-D68,显示出治疗疫情的潜力.
科学领域:
- 病毒学 病毒学
- 结构生物学 结构生物学
- 药物发现 药物发现 药物发现
背景情况:
- 肠道病毒D68 (EV-D68) 是一个重要的病原体,导致儿童的呼吸系统疾病爆发.
- EV-D68属于Picornaviridae家族,需要对其结构和潜在的治疗方法进行研究.
研究的目的:
- 确定肠道病毒D68 (EV-D68) 的晶体结构及其与抗病毒化合物pleconaril的复合物.
- 为了研究pleconaril在EV-D68体结构中的结合相互作用.
- 为了评估pleconaril对EV-D68.8的抗病毒疗效.
主要方法:
- 采用X射线晶体学,获得了EV-D68及其与pleconaril.complex复合物的高分辨率结构.
- 病毒蛋白中的疏水性药物结合口袋的分析 1.病毒蛋白中的疏水性药物结合口袋的分析
- 在体外抗病毒试验中测试,以确定pleconaril的半最大有效度 (EC50).
主要成果:
- 晶体结构揭示了病毒蛋白1中的一个疏水口袋,被脂肪酸所占据.
- 普莱科纳里尔成功地将脂肪酸从结合口袋中取代.
- 普莱科纳里尔证明了对EV-D68的强烈抑制,EC50为430纳米.
结论:
- 结构和生化数据阐明了pleconaril与EV-D68.8结合的机制.
- 普莱科纳里尔是一种有前途的药物候选药物,用于管理D68肠道病毒爆发.
- 进一步开发pleconaril可能为EV-D68感染提供治疗选择.
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