基于结构的泛冠状病毒抑制剂的设计,向宿主甲素L和calpain-1
Xiong Xie1,2, Qiaoshuai Lan3, Jinyi Zhao2,4
1Drug Discovery and Design Center, State Key Laboratory of Drug Research, CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
Signal transduction and targeted therapy
|March 5, 2024
概括
两种新型化合物,14a和14b,有效抑制宿主蛋白酶Cathepsin L和calpain-1,对SARS-CoV-2变体和HCoV-OC43表现出广泛的抗病毒活性,具有有前途的抗炎作用.
科学领域:
- 病毒学 病毒学
- 药物发现 药物发现 药物发现
- 免疫学 免疫学 免疫学
背景情况:
- 新出现的冠状病毒对全球健康构成威胁,需要超越现有疫苗和抗病毒药物的新疗法策略.
- 针对宿主的抗病毒药物提供了一种有希望的方法来对抗病毒耐药性和未来的疫情.
- 甲素L (CTSL) 和calpain-1 (CAPN1) 是关键的宿主蛋白酶,参与冠状病毒的进入和免疫反应.
研究的目的:
- 识别和描述针对CTSL和CAPN1的新型双重抑制剂,用于广泛的冠状病毒治疗.
- 评估这些抑制剂对SARS-CoV-2和其他冠状病毒的体外和体内抗病毒疗效和安全性.
- 评估已识别化合物的抗炎性质.
主要方法:
- 作为双重CTSL和CAPN1抑制剂的peptidomimeticα-ketoamide化合物 (14a和14b) 的鉴定.
- 进行X射线晶体学,以阐明具有CTSL和CAPN1.1的化合物的结合机制.
- 针对SARS-CoV-2及其变种以及HCoV-OC43.3的体外抗病毒测试.
- 用小鼠模型进行体内研究,以评估药物动力学特性,安全性,抗病毒功效和抗炎作用.
主要成果:
- 化合物14a和14b强烈抑制了CTSL和CAPN1,X射线结构证实了共价结合.
- 这两种化合物在体外表现出广泛的抗病毒活性,包括对SARS-CoV-2及其变体 (VOCs) 的低纳米分子功效.
- 在体内研究显示了有利的口服药理动力学,良好的安全性概况,对SARS-CoV-2 XBB 1.16和HCoV-OC43的强烈抗病毒活性,以及显著的抗炎作用.
结论:
- 化合物14a和14b是强大的CTSL和CAPN1双抑制剂,具有广泛的抗病毒和抗炎性质.
- 这些化合物代表了开发泛冠状病毒抑制剂的有希望的候选药物.
- 这些发现为管理当前和未来的冠状病毒威胁的宿主准策略提供了新的见解.
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