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Title: SARS-CoV-2 Inhibitors Identified by Phenotypic Analysis of a Collection of Viral RNA-Binding Molecules
Author: Simba Lahuasi, Alvaro
Cantero Camacho, Ángel
Rosales, Rosales
McGovern, Briana Lynn
Rodríguez, M. Luis
Marchán Sancho, Vicente
White, Kris M.
García Sastre, Adolfo
Gallego, José
Keywords: COVID-19
Issue Date: 22-Nov-2022
Publisher: MDPI
Abstract: Antiviral agents are needed for the treatment of SARS-CoV-2 infections and to control other coronavirus outbreaks that may occur in the future. Here we report the identification and characterization of RNA-binding compounds that inhibit SARS-CoV-2 replication. The compounds were detected by screening a small library of antiviral compounds previously shown to bind HIV-1 or HCV RNA elements with a live-virus cellular assay detecting inhibition of SARSCoV-2 replication. These experiments allowed detection of eight compounds with promising antiSARS-CoV-2 activity in the sub-micromolar to micromolar range and wide selectivity indexes. Examination of the mechanism of action of three selected hit compounds excluded action on the entry or egress stages of the virus replication cycle and confirmed recognition by two of the molecules of conserved RNA elements of the SARS-CoV-2 genome, including the highly conserved S2m hairpin located in the 3'-untranslated region of the virus. While further studies are needed to clarify the mechanism of action responsible for antiviral activity, these results facilitate the discovery of RNA-targeted antivirals and provide new chemical scaffolds for developing therapeutic agents against coronaviruses.
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It is part of: Pharmaceuticals, 2022, vol. 15, p. 1448
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ISSN: 1424-8247
Appears in Collections:Articles publicats en revistes (Química Inorgànica i Orgànica)

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