Anti-influenza A virus activity and structure–activity relationship of a series of nitrobenzoxadiazole derivatives

Influenza viruses represent a major threat to human health and are responsible for seasonal epidemics, along with pandemics. Currently, few therapeutic options are available, with most drugs being at risk of the insurgence of resistant strains. Hence, novel approaches targeting less explored pathway...

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Main Authors: Francesco Fiorentino, Marta De Angelis, Martina Menna, Annarita Rovere, Anna Maria Caccuri, Francesca D’Acunzo, Anna Teresa Palamara, Lucia Nencioni, Dante Rotili, Antonello Mai
Format: Article
Language:English
Published: Taylor & Francis Group 2021-01-01
Series:Journal of Enzyme Inhibition and Medicinal Chemistry
Subjects:
Online Access:http://dx.doi.org/10.1080/14756366.2021.1982932
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author Francesco Fiorentino
Marta De Angelis
Martina Menna
Annarita Rovere
Anna Maria Caccuri
Francesca D’Acunzo
Anna Teresa Palamara
Lucia Nencioni
Dante Rotili
Antonello Mai
author_facet Francesco Fiorentino
Marta De Angelis
Martina Menna
Annarita Rovere
Anna Maria Caccuri
Francesca D’Acunzo
Anna Teresa Palamara
Lucia Nencioni
Dante Rotili
Antonello Mai
author_sort Francesco Fiorentino
collection DOAJ
description Influenza viruses represent a major threat to human health and are responsible for seasonal epidemics, along with pandemics. Currently, few therapeutic options are available, with most drugs being at risk of the insurgence of resistant strains. Hence, novel approaches targeting less explored pathways are urgently needed. In this work, we assayed a library of nitrobenzoxadiazole derivatives against the influenza virus A/Puerto Rico/8/34 H1N1 (PR8) strain. We identified three promising 4-thioether substituted nitrobenzoxadiazoles (12, 17, and 25) that were able to inhibit viral replication at low micromolar concentrations in two different infected cell lines using a haemagglutination assay. We further assessed these molecules using an In-Cell Western assay, which confirmed their potency in the low micromolar range. Among the three molecules, 12 and 25 displayed the most favourable profile of activity and selectivity and were selected as hit compounds for future optimisation studies.
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spelling doaj.art-ecff4c5a42794137b561ff775ca35eb02022-12-21T23:43:44ZengTaylor & Francis GroupJournal of Enzyme Inhibition and Medicinal Chemistry1475-63661475-63742021-01-013612128213810.1080/14756366.2021.19829321982932Anti-influenza A virus activity and structure–activity relationship of a series of nitrobenzoxadiazole derivativesFrancesco Fiorentino0Marta De Angelis1Martina Menna2Annarita Rovere3Anna Maria Caccuri4Francesca D’Acunzo5Anna Teresa Palamara6Lucia Nencioni7Dante Rotili8Antonello Mai9Department of Drug Chemistry and Technologies, Sapienza University of RomeDepartment of Public Health and Infectious Diseases, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of RomeDepartment of Drug Chemistry and Technologies, Sapienza University of RomeDepartment of Drug Chemistry and Technologies, Sapienza University of RomeDepartment of Chemical Sciences and Technologies, University of Rome Tor VergataCNR, Istituto di Metodologie Chimiche, Sezione Meccanismi di Reazione, Sapienza University of RomeDepartment of Public Health and Infectious Diseases, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of RomeDepartment of Public Health and Infectious Diseases, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of RomeDepartment of Drug Chemistry and Technologies, Sapienza University of RomeDepartment of Drug Chemistry and Technologies, Sapienza University of RomeInfluenza viruses represent a major threat to human health and are responsible for seasonal epidemics, along with pandemics. Currently, few therapeutic options are available, with most drugs being at risk of the insurgence of resistant strains. Hence, novel approaches targeting less explored pathways are urgently needed. In this work, we assayed a library of nitrobenzoxadiazole derivatives against the influenza virus A/Puerto Rico/8/34 H1N1 (PR8) strain. We identified three promising 4-thioether substituted nitrobenzoxadiazoles (12, 17, and 25) that were able to inhibit viral replication at low micromolar concentrations in two different infected cell lines using a haemagglutination assay. We further assessed these molecules using an In-Cell Western assay, which confirmed their potency in the low micromolar range. Among the three molecules, 12 and 25 displayed the most favourable profile of activity and selectivity and were selected as hit compounds for future optimisation studies.http://dx.doi.org/10.1080/14756366.2021.1982932influenza a virusnitrobenzoxadiazolesrna polymerase inhibitorsantivirals
spellingShingle Francesco Fiorentino
Marta De Angelis
Martina Menna
Annarita Rovere
Anna Maria Caccuri
Francesca D’Acunzo
Anna Teresa Palamara
Lucia Nencioni
Dante Rotili
Antonello Mai
Anti-influenza A virus activity and structure–activity relationship of a series of nitrobenzoxadiazole derivatives
Journal of Enzyme Inhibition and Medicinal Chemistry
influenza a virus
nitrobenzoxadiazoles
rna polymerase inhibitors
antivirals
title Anti-influenza A virus activity and structure–activity relationship of a series of nitrobenzoxadiazole derivatives
title_full Anti-influenza A virus activity and structure–activity relationship of a series of nitrobenzoxadiazole derivatives
title_fullStr Anti-influenza A virus activity and structure–activity relationship of a series of nitrobenzoxadiazole derivatives
title_full_unstemmed Anti-influenza A virus activity and structure–activity relationship of a series of nitrobenzoxadiazole derivatives
title_short Anti-influenza A virus activity and structure–activity relationship of a series of nitrobenzoxadiazole derivatives
title_sort anti influenza a virus activity and structure activity relationship of a series of nitrobenzoxadiazole derivatives
topic influenza a virus
nitrobenzoxadiazoles
rna polymerase inhibitors
antivirals
url http://dx.doi.org/10.1080/14756366.2021.1982932
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