Zinc pyrithione is a potent inhibitor of PL<sup>Pro</sup> and cathepsin L enzymes with <i>ex vivo</i> inhibition of SARS-CoV-2 entry and replication
作者:Jerneja Kladnik、Ana Dolinar、Jakob Kljun、David Perea、Judith Grau-Expósito、Meritxell Genescà、Marko Novinec、Maria J. Buzon、Iztok Turel
DOI:10.1080/14756366.2022.2108417
日期:2022.12.31
from primary human lung tissue. Zinc complexes 1b–h expressed comparable in vitro inhibition. On the contrary, ruthenium complex 2a and the ligand pyrithione a itself expressed poor inhibition in mentioned assays, indicating the importance of the selection of metal core and structure of metal complex for antiviral activity. Safe, effective, and preferably oral at-home therapeutics for COVID-19 are needed
摘要 合成了吡啶硫酮锌 ( 1a ) 及其类似物1b - h和吡啶硫酮钌络合物2a,并对其在生物学相关介质中的稳定性和抗 SARS-CoV-2 活性进行了评估。Zinc pyrithione 显示出对组织蛋白酶 L (IC 50 =1.88 ± 0.49 µM) 和 PL Pro (IC 50 =0.50 ± 0.07 µM)(分别参与 SARS-CoV-2 进入和复制的酶)以及抗病毒的有效体外抑制作用来自原代人肺组织的离体系统中的进入和复制特性。锌配合物1b – h表示可比体外抑制。相反,钌络合物2a和配体吡啶硫酮a本身在上述测定中表现出较差的抑制作用,表明选择金属核和金属络合物结构对于抗病毒活性的重要性。需要针对 COVID-19 的安全、有效且最好是口服的家庭疗法,因此也可商购获得的吡啶硫酮锌可被视为针对 SARS-CoV-2 的潜在治疗剂。