通过西塔利普丁和林纳利普丁向DPP4-RBD相互作用,可以提供潜在的宿主导疗法来对抗泛SARS-CoV-2感染
Shailendra Mani1, Anupamjeet Kaur2, Kamini Jakhar1
1Translational Health Science and Technology Institute, Faridabad, India.
International journal of biological macromolecules
|June 29, 2023
概括
这项研究表明,SARS-CoV-2除了使用ACE2外,还使用人类DPP4进入细胞. 像西塔格利普丁和林纳格利普丁这样的DPP4抑制剂阻断了这个过程,阻止了病毒的复制.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- 导致COVID-19的病毒SARS-CoV-2利用ACE2受体进入细胞.
- 在SARS-CoV-2的突变可以影响其传染性和与宿主细胞的相互作用.
研究的目的:
- 为了调查人类二二酶4 (DPP4) 在SARS-CoV-2入口中的作用.
- 评估DPP4抑制剂作为针对SARS-CoV-2及其变种的治疗策略的潜力.
主要方法:
- 研究了SARS-CoV-2尖端蛋白的受体结合域 (RBD) 和人类DPP4之间的相互作用.
- 评估DPP4抑制剂 (西塔格利普丁,林纳格利普丁) 对细胞培养中的病毒进入和复制的影响.
- 研究了草甘对RBD,DPP4和ACE2之间的相互作用的影响.
- 测试了对各种SARS-CoV-2变种和其他病毒酶 (PLpro,Mpro) 的 Gliptins 的疗效.
主要成果:
- 证明SARS-CoV-2 RBD通过键和疏水性相互作用与人体DPP4结合,促进病毒的进入.
- 西塔利普丁和林纳利普丁有效地抑制了DPP4-ACE2-RBD复合物的形成,这对于病毒进入至关重要.
- 格利普丁阻碍了多个SARS-CoV-2变体 (原始,α,β,delta,kappa) 的复制,这种复制方式取决于剂量.
- 这些药物没有影响病毒蛋白酶PLpro和Mpro.pro的酶活性.
结论:
- 病毒,包括SARS-CoV-2,可以通过RBD结合劫持DPP4进行细胞入侵.
- 使用西塔利普丁和林纳利普丁针对RBD与DPP4和ACE2的相互作用,为抑制病毒复制提供了一个有希望的策略.
- DPP4 抑制剂为针对广泛的SARS-CoV-2 变种提供了潜在的治疗途径.
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