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Molecular Interactions of Tannic Acid with Proteins Associated with SARS-CoV-2 Infectivity

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Haddad, Mohamed; Gaudreault, Roger; Sasseville, Gabriel; Nguyen, Phuong Trang; Wiebe, Hannah; Van De Ven, Theo; Bourgault, Steve; Mousseau, Normand et Ramassamy, Charles ORCID logoORCID: https://orcid.org/0000-0002-3252-5878 (2022). Molecular Interactions of Tannic Acid with Proteins Associated with SARS-CoV-2 Infectivity International Journal of Molecular Sciences , vol. 23 , nº 5:2643. pp. 1-24. DOI: 10.3390/ijms23052643.

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Résumé

The overall impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on our society is unprecedented. The identification of small natural ligands that could prevent the entry and/or replication of the coronavirus remains a pertinent approach to fight the coronavirus disease (COVID-19) pandemic. Previously, we showed that the phenolic compounds corilagin and 1,3,6-tri-O-galloyl-β-D-glucose (TGG) inhibit the interaction between the SARS-CoV-2 spike protein receptor binding domain (RBD) and angiotensin-converting enzyme 2 (ACE2), the SARS-CoV-2 target receptor on the cell membrane of the host organism. Building on these promising results, we now assess the effects of these phenolic ligands on two other crucial targets involved in SARS-CoV-2 cell entry and replication, respectively: transmembrane protease serine 2 (TMPRSS2) and 3-chymotrypsin like protease (3CLpro) inhibitors. Since corilagin, TGG, and tannic acid (TA) share many physicochemical and structural properties, we investigate the binding of TA to these targets. In this work, a combination of experimental methods (biochemical inhibition assays, surface plasmon resonance, and quartz crystal microbalance with dissipation monitoring) confirms the potential role of TA in the prevention of SARS-CoV-2 infectivity through the inhibition of extracellular RBD/ACE2 interactions and TMPRSS2 and 3CLpro activity. Moreover, molecular docking prediction followed by dynamic simulation and molecular mechanics Poisson–Boltzmann surface area (MMPBSA) free energy calculation also shows that TA binds to RBD, TMPRSS2, and 3CLpro with higher affinities than TGG and corilagin. Overall, these results suggest that naturally occurring TA is a promising candidate to prevent and inhibit the infectivity of SARS-CoV-2.

Type de document: Article
Mots-clés libres: SARS-CoV-2; COVID-19; molecular dynamics; polyphenols; RBD; TMPRSS2; 3CLpro
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 12 mars 2022 18:55
Dernière modification: 12 mars 2022 18:55
URI: https://espace.inrs.ca/id/eprint/12500

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