Polyphenols as alternative treatments of COVID-19

Comput Struct Biotechnol J. 2021:19:5371-5380. doi: 10.1016/j.csbj.2021.09.022. Epub 2021 Sep 20.

Abstract

Although scientists around the world have put lots of effort into the development of new treatments for COVID-19 since the outbreak, no drugs except Veklury (remdesivir) have been approved by FDA. There is an urgent need to discover some alternative antiviral treatment for COVID-19. Because polyphenols have been shown to possess antiviral activities, here we conducted a large-scale virtual screening for more than 400 polyphenols. Several lead compounds such as Petunidin 3-O-(6″-p-coumaroyl-glucoside) were identified to have promising binding affinities and convincing binding mechanisms. Analyzing the docking results and ADME properties sheds light on the potential efficacy of the top-ranked drug candidates and pinpoints the key residues on the target proteins for the future of drug development.

Keywords: COVID-19; MD simulation; Main protease; Natural products; Papain-like protease; Polyphenols; Virtual screening.