开发具有增强的Mpro连接物效率和降低细胞毒性的Masitinib衍生物
Cintia A Menendez1, Adil Mohamed1, Gustavo R Perez-Lemus1
1Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA.
Molecules (Basel, Switzerland)
|September 28, 2023
概括
马西尼尼布通过抑制SARS-CoV-2主要蛋白酶 (Mpro) 显示出治疗COVID-19的潜力. 优化的masitinib衍生物 (M3和M4) 显示出增强的疗效和降低的细胞毒性.
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.
- 计算化学计算化学
背景情况:
- 马西尼尼是一种氨酸激酶抑制剂,被确定为潜在的COVID-19治疗药物.
- 马西尼尼对人类冠状病毒,包括SARS-CoV-2变种,表现出广泛的抑制作用.
- 了解马西替尼的Mpro抑制机制对于治疗优化至关重要.
研究的目的:
- 阐明马西替尼抑制SARS-CoV-2主要蛋白酶 (Mpro) 的分子机制.
- 确定负责马西替尼的抑制活性和标选择性的关键分子碎片.
- 设计具有提高疗效和降低细胞毒性的新型马西替尼衍生物.
主要方法:
- 采用了先进的采样技术的原子分子动力学模拟.
- 在masitinib-Mpro复合体内对稳定键相互作用的分析.
- 马西替尼衍生物的合理设计和建议 (M1-M5).
主要成果:
- 马西尼尼通过其胺和氨基醇环与Mpro形成稳定的键.
- 与Histidine 163 (His163) 的相互作用对马西替尼的结合至关重要.
- 与马西替尼相比,设计的衍生物M3和M4表现出增强的抑制效率和显著降低的细胞毒性.
结论:
- 马西尼尼与Mpro的结合主要由特定的键介导,His163作为关键的结残留物.
- 基于分子相互作用的理性设计导致开发出更强效,更安全的马西替尼布衍生物.
- M3和M4衍生品代表了作为COVID-19治疗药物进一步开发的有希望的候选人.
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