| Author | Sheu-Idrees, Rahamah | |
| Author | Marques, Gabriel Vitor de Lima | |
| Author | Santana, Pedro Augusto Lemos | |
| Author | Diniz, Lucas Abreu | |
| Author | Resende, Daniela de Melo | |
| Author | Odoma, Saidi | |
| Author | Olorunshola, Omodamiro | |
| Author | Ferreira, Rafaela Salgado | |
| Author | Murta, Silvane Maria Fonseca | |
| Author | Maltarollo, Vinícius Gonçalves | |
| Author | Oliveira, Renata Barbosa de | |
| Access date | 2025-03-07T19:22:13Z | |
| Available date | 2025-03-07T19:22:13Z | |
| Document date | 2025 | |
| Citation | SHEU-IDREES, Rahamah et al. Investigation of the activity of 4-aminoquinolines as cysteine protease inhibitors with application in the treatment of Chagas disease. Memórias do Instituto Oswaldo Cruz, v. 120, p. e240161, 2025. | en_US |
| ISSN | 0074-0276 | en_US |
| URI | https://www.arca.fiocruz.br/handle/icict/68833 | |
| Language | eng | en_US |
| Publisher | Instituto Oswaldo Cruz | en_US |
| Rights | open access | en_US |
| Title | Investigation of the activity of 4-aminoquinolines as cysteine protease inhibitors with application in the treatment of Chagas disease. | en_US |
| Type | Article | en_US |
| DOI | 10.1590/0074-02760240161 | |
| Abstract | BACKGROUND Chagas disease (CD) is a neglected tropical disease caused by Trypanosoma cruzi. The current drugs used to treat these diseases have limited efficacy and produce severe side effects. 4-aminoquinoline derivatives were shown to be a promising class of inhibitors of cysteine proteases cruzain and TbrCATL.
OBJECTIVES To evaluate the trypanocidal activity of a new series of aminoquinolines as potential inhibitors of cruzain and TbrCATL.
METHODS Three aminoquinolines were synthesised and their in vitro activity was evaluated against cruzain and TbrCATL as well as against amastigotes and trypomastigotes forms of T. cruzi. In silico studies were also carried out to try to understand the experimental results.
FINDINGS Compound 5 showed promising activity against cruzain and TbrCATL, with better performance than E60, the reference drug. Compound 5 inhibited cruzain and TbrCATL at IC50 of 23 µM ±3 and 29 µM ±1, respectively, but this inhibition showed characteristics of promiscuous inhibition by colloidal aggregation. On the other hand, the compound 4 showed to be more promising activity against T. cruzi with IC50 2.57 µM ± 0.03 lower than the reference drug benznidazole 3.8 µM.
MAIN CONCLUSIONS The results of this study can guide new drug development for the treatment of trypanosomiasis. | en_US |
| Affilliation | Universidade Federal de Minas Gerais. Faculdade de Farmácia. Departamento de Produtos Farmacêuticos. Belo Horizonte, MG, Brasil./ Kampala International University. School of Pharmacy. Kampala, Uganda. / Kampala International University. School of Pharmacy. Dar Es Salaam, Tanzania. | en_US |
| Affilliation | Universidade Federal de Minas Gerais. Faculdade de Farmácia. Departamento de Produtos Farmacêuticos. Belo Horizonte, MG, Brasil. | en_US |
| Affilliation | Universidade Federal de Minas Gerais. Faculdade de Farmácia. Departamento de Produtos Farmacêuticos. Belo Horizonte, MG, Brasil. | en_US |
| Affilliation | Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas. Departamento de Bioquímica e Imunologia. Belo Horizonte, MG, Brasil. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto René Rachou. Grupo de Genômica Funcional de Parasitos. Belo Horizonte, MG, Brasil. | en_US |
| Affilliation | Kampala International University. School of Pharmacy. Kampala, Uganda. / Kogi State University. College of Health Sciences. Department of Pharmacology. Anyigba, Nigeria. | en_US |
| Affilliation | Kampala International University. School of Pharmacy. Kampala, Uganda. | en_US |
| Affilliation | Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas. Departamento de Bioquímica e Imunologia. Belo Horizonte, MG, Brasil. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto René Rachou. Grupo de Genômica Funcional de Parasitos. Belo Horizonte, MG, Brasil. | en_US |
| Affilliation | Universidade Federal de Minas Gerais. Faculdade de Farmácia. Departamento de Produtos Farmacêuticos. Belo Horizonte, MG, Brasil. | en_US |
| Affilliation | Universidade Federal de Minas Gerais. Faculdade de Farmácia. Departamento de Produtos Farmacêuticos. Belo Horizonte, MG, Brasil. | en_US |
| Subject | Chagas’ disease | en_US |
| Subject | Cruzain | en_US |
| Subject | TbrCATL; 4-aminoquinoline | en_US |
