Structure-based discovery of thiosemicarbazones as SARS-CoV-2 main protease inhibitors

Author:

Maltarollo Vinícius Gonçalves1ORCID,da Silva Elany Barbosa2ORCID,Kronenberger Thales3456ORCID,Sena Andrade Marina Mol1,de Lima Marques Gabriel V1ORCID,Cândido Oliveira Nereu J1,Santos Lucianna H7,Oliveira Rezende Júnior Celso de89,Cassiano Martinho Ana C8,Skinner Danielle2,Fajtová Pavla210,M Fernandes Thaís H21112,Silveira dos Santos Eduardo da1112,Rodrigues Gazolla Poliana A13,Martins de Souza Ana P13,da Silva Milene Lopes13,dos Santos Fabíola S13,Lavorato Stefânia N114,Oliveira Bretas Ana C1,Carvalho Diogo Teixeira1,Franco Lucas Lopardi1,Luedtke Stephanie2,Giardini Miriam A2ORCID,Poso Antti3456ORCID,Dias Luiz C9,Podust Larissa M2,Alves Ricardo J1,McKerrow James2,Andrade Saulo F1112,Teixeira Róbson R13,Siqueira-Neto Jair L2,O’Donoghue Anthony2,de Oliveira Renata B1ORCID,Ferreira Rafaela S7ORCID

Affiliation:

1. Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31270-901, Brazil

2. Skaggs School of Pharmacy & Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0657, USA

3. Institute of Pharmaceutical Sciences, Eberhard Karls Universität Tübingen, Tübingen 72076, Germany

4. Cluster of Excellence iFIT (EXC 2180) ‘Image-Guided & Functionally Instructed Tumor Therapies’, University of Tübingen, Tübingen, 72076, Germany

5. Tübingen Center for Academic Drug Discovery, Auf der Morgenstelle 8, Tübingen, 72076, Germany

6. School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Kuopio, 70211, Finland

7. Department of Biochemistry & Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil

8. Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, 38400-902, Brazil

9. Instituto de Química, Universidade Estadual de Campinas, Campinas, São Paulo, 13083-970, Brazil

10. Institute of Organic Chemistry & Biochemistry, Academy of Sciences of the Czech Republic, Prague, 16610, Czech Republic

11. Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90160-093, Brazil

12. Pharmaceutical Synthesis Group (PHARSG), Departamento de Produção de Matéria-Prima, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90160-093, Brazil

13. Grupo de Síntese e Pesquisa de Compostos Bioativos (GSPCB), Departamento de Química, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil

14. Centro das Ciências Biológicas e da Saúde, Universidade Federal do Oeste da Bahia, Barreiras, Bahia, 47810-047, Brazil

Abstract

Aim: Discovery of novel SARS-CoV-2 main protease (Mpro) inhibitors using a structure-based drug discovery strategy. Materials & methods: Virtual screening employing covalent and noncovalent docking was performed to discover Mpro inhibitors, which were subsequently evaluated in biochemical and cellular assays. Results: 91 virtual hits were selected for biochemical assays, and four were confirmed as reversible inhibitors of SARS CoV-2 Mpro with IC50 values of 0.4–3 μM. They were also shown to inhibit SARS-CoV-1 Mpro and human cathepsin L. Molecular dynamics simulations indicated the stability of the Mpro inhibitor complexes and the interaction of ligands at the subsites. Conclusion: This approach led to the discovery of novel thiosemicarbazones as potent SARS-CoV-2 Mpro inhibitors.

Funder

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Bundesministerium für Bildung und Forschung

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Fundação de Amparo à Pesquisa do Estado de Minas Gerais

Publisher

Future Science Ltd

Subject

Drug Discovery,Pharmacology,Molecular Medicine

Reference120 articles.

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