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对Nirmatrelvir (Paxlovid) 在SARS-CoV-2 Mpro中耐药性的研究
Rasha M Yaghi1, Dennis C Wylie2, Collin L Andrews1
1Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, The United States of America.
ACS bio & med chem Au
|December 23, 2024
概括
在SARS-CoV-2主要蛋白酶 (Mpro) 变体中,耐尼马特里尔维尔耐药性发展缓慢. 鉴定的突变显示活性降低,常见的患者突变赋予了最小的抗药性,表明nirmatrelvirvir.
科学领域:
- 病毒学 病毒学
- 药物发现 药物发现 药物发现
- 生物化学 生物化学
背景情况:
- 尼尔马特里尔维尔是一种关键的抗病毒药物,向SARS-CoV-2主要蛋白酶 (Mpro).
- 了解Mpro突变对于预测抗病毒耐药性至关重要.
- 高通量选有助于识别潜在的抵抗机制.
研究的目的:
- 为了选SARS-CoV-2 Mpro变种对nirmatrelvir.vir的耐药性.
- 描述流行和患者衍生突变对涅马特里尔维尔疗效的影响.
- 预测未来耐尼马特里尔病毒耐药性的发展.
主要方法:
- 使用了YESS 2.0高通量选平台.
- 选了针对nirmatrelvir的SARS-CoV-2 Mpro变体的大型图书馆.
- 在体外分析单个和组合突变对酶活性和药物耐药性的影响.
主要成果:
- 确定了100种流行Mpro突变,包括E166V,L27V,N142S,A173V和Y154N.
- 耐尼马特里尔维尔耐药性与鉴定突变的催化活性下降相关.
- 通常观察到的患者突变对尼马特里尔维尔耐药性的影响有限,除了A285V与P132H和K90R相结合.
结论:
- 预计耐尼马特里尔维尔耐药性的发展速度比预期的要慢.
- 尼尔马特里尔维尔和Mpro基板之间的结构相似性可能会导致耐药性减缓.
- 患者当前的Mpro突变并没有显著威胁nirmatrelvir的有效性.
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