Identification of potent small molecule inhibitors of SARS-CoV-2 entry.

Identification of potent small molecule inhibitors of SARS-CoV-2 entry.
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DOI:
10.1016/j.slasd.2021.10.012
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发表时间:
2022-01
期刊:
SLAS discovery : advancing life sciences R & D
影响因子:
--
通讯作者:
Spicer TP
Spicer TP
中科院分区:
其他
文献类型:
--
作者:
Mediouni S;Mou H;Otsuka Y;Jablonski JA;Adcock RS;Batra L;Chung DH;Rood C;de Vera IMS;Rahaim R Jr;Ullah S;Yu X;Getmanenko YA;Kennedy NM;Wang C;Nguyen TT;Hull M;Chen E;Bannister TD;Baillargeon P;Scampavia L;Farzan M;Valente ST;Spicer TP

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导致COVID-19的严重急性呼吸系统综合征冠状病毒2仍然是对人类的持续威胁,特别是对于免疫功能低下和老年人,疫苗可能对他们的有效性有限。SARS-CoV-2的进入需要病毒刺突蛋白与细胞受体血管紧张素转换酶2的高亲和力相互作用。刺突蛋白上的新突变与SARS-CoV-2新变体的高传播性相关,突出了对病毒进入靶细胞的小分子抑制剂的需求。我们报告了通过一个强大的高通量筛选测试15,000个来自独特库的小分子来鉴定这种抑制剂。在一套机制试验中验证了几种先导物,包括全细胞SARS-CoV-2感染性试验。利用SARS-CoV-1和新型SARS-CoV-2变异体进入试验、SARS-CoV-2蛋白酶试验和分子对接进一步表征了主要先导化合物calpeptin。这项研究揭示了calpeptin作为SARS-CoV-2和一些变体的有效和特异性抑制剂。
The severe acute respiratory syndrome coronavirus 2 responsible for COVID-19 remains a persistent threat to mankind, especially for the immunocompromised and elderly for which the vaccine may have limited effectiveness. Entry of SARS-CoV-2 requires a high affinity interaction of the viral spike protein with the cellular receptor angiotensin-converting enzyme 2. Novel mutations on the spike protein correlate with the high transmissibility of new variants of SARS-CoV-2, highlighting the need for small molecule inhibitors of virus entry into target cells. We report the identification of such inhibitors through a robust high-throughput screen testing 15,000 small molecules from unique libraries. Several leads were validated in a suite of mechanistic assays, including whole cell SARS-CoV-2 infectivity assays. The main lead compound, calpeptin, was further characterized using SARS-CoV-1 and the novel SARS-CoV-2 variant entry assays, SARS-CoV-2 protease assays and molecular docking. This study reveals calpeptin as a potent and specific inhibitor of SARS-CoV-2 and some variants.
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