在细胞模型中对抗病毒宿主母质酶/TMPRSS2抑制剂的PK/PD研究
Dávid Gamba1, Nicholas van Eijk1, Katalin Lányi2
1Department of Pharmacology and Toxicology, University of Veterinary Medicine, István Utca 2, 1078, Budapest, Hungary.
Scientific reports
|July 18, 2024
概括
七种母质酶/TMPRSS2抑制剂被评估为它们治疗病毒性呼吸道感染的潜力. 一些抑制剂显示出强大的CYP3A4抑制和抗病毒活性对抗流感A病毒,表明作为治疗剂的承诺.
科学领域:
- 生物化学 生物化学
- 病毒学 病毒学
- 药理学 药理学是指药理学的学科.
背景情况:
- 二型跨膜血清蛋白酶,如TMPRSS2,对于某些冠状病毒和流感病毒进入细胞至关重要.
- 这些蛋白酶代表了开发针对病毒性呼吸道感染的治疗方法的潜在药物标.
研究的目的:
- 评估七种母质酶/TMPRSS2抑制剂对细胞染色体P450酶的细胞毒性和抑制作用.
- 评估这些抑制剂对流感A病毒亚型H1N1和H9N2.2的抗病毒活性.
- 为了确定抑制剂的药理动力学特性和代谢稳定性.
主要方法:
- 用度测试来评估抑制细胞染色体P450酶 (CYP1A2,CYP2C9,CYP2C19,CYP2D6和CYP3A4) 的情况.
- 对H1N1和H9N2亚型流感A的抗病毒活性进行了评估.
- 人类初级肝细胞中的代谢耗尽率使用LC-MS/MS来计算药理动力学参数来确定.
主要成果:
- 除了MI-21外,大多数抑制剂都强烈抑制了CYP3A4,其活性通过联体对接得到合理化.
- 所有测试的化合物都缺乏对CYP1A2,CYP2C9,CYP2C19和CYP2D6.2的抑制作用.
- 与MI-21和MI-1903.03相比,MI-463,MI-472,MI-485,MI-1900和MI-1904的抑制剂具有更大的代谢稳定性.
- 抑制剂MI-463和MI-1900显示出抗H1N1活性,MI-463显示出20和50微米的抗H9N2活性.
结论:
- 某些母酶/TMPRSS2抑制剂显示出对流感A病毒有前途的CYP3A4抑制和抗病毒特性.
- 这些化合物可以通过抑制宿主蛋白酶介导的裂变来阻止病毒的进入,从而作为潜在的治疗药物.
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