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Colina-Vegas L, da Cruz B Silva M, de Souza Pereira C, Isis Barros A, Araújo Nobrega J, Navarro M, Rottmann M, D'Alessandro S, Basilico N, Azevedo Batista A, Moreira DRM. Antimalarial Agents Derived from Metal-Amodiaquine Complexes with Activity in Multiple Stages of the Plasmodium Life Cycle. Chemistry 2023; 29:e202301642. [PMID: 37427863 DOI: 10.1002/chem.202301642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/11/2023]
Abstract
Malaria is the one of the deadliest infectious diseases worldwide. Chemically, quinolines are excellent ligands for metal coordination and are deployed as drugs for malaria treatment. There is a growing body of evidence indicating that metal complexes can be conjugated with antimalarial quinolines to be used as chemical tools to overcome the disadvantages of quinolines, improving their bioactive speciation, cellular distribution, and subsequently broadening the spectrum of activity to multiple stages of the complex Plasmodium life cycle. In this study, four novel complexes of ruthenium(II)- and gold(I)-containing amodiaquine (AQ) were synthesized, and a careful chemical characterization revealed the precise coordination site of AQ to the metals. Their speciation in solution was investigated, demonstrating the stability of the quinoline-metal bond. RuII - and AuI -AQ complexes were demonstrated to be potent and efficacious in inhibiting parasite growth in multiple stages of the Plasmodium life cycle as assayed in vitro and in vivo. These properties could be attributed to the ability of the metal-AQ complexes to reproduce the suppression of heme detoxification induced by AQ, while also inhibiting other processes in the parasite life cycle; this can be attributed to the action of the metallic species. Altogether, these findings indicate that metal coordination with antimalarial quinolines is a potential chemical tool for drug design and discovery in malaria and other infectious diseases susceptible to quinoline treatment.
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Affiliation(s)
- Legna Colina-Vegas
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, CP 91501-970, RS, Brazil
| | | | - Caroline de Souza Pereira
- Departamento de Química, Universidade Federal de Juiz de Fora, Juiz de Fora, CP 36036-900, MG, Brazil
| | - Ariane Isis Barros
- Departamento de Solos e Engenharia Rural, Universidade Federal de Mato Grosso, Cuiabá, CEP 78060-900, MT, Brazil
| | - Joaquim Araújo Nobrega
- Departamento de Química, Universidade Federal de São Carlos, São Carlos, CP 13565-90, SP, Brazil
| | - Maribel Navarro
- Departamento de Química, Universidade Federal de Juiz de Fora, Juiz de Fora, CP 36036-900, MG, Brazil
| | - Matthias Rottmann
- Swiss Tropical & Public Health Institute, 4123, Allschwil, Switzerland
- University of Basel, 4001, Basel, Switzerland
| | - Sarah D'Alessandro
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, 20133, Italy
| | - Nicoletta Basilico
- Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Universitá degli Studi di Milano, Milan, 20133, Italy
| | - Alzir Azevedo Batista
- Departamento de Química, Universidade Federal de São Carlos, São Carlos, CP 13565-90, SP, Brazil
| | - Diogo R M Moreira
- Instituto Gonçalo Moniz, FIOCRUZ, Salvador, CEP 40296-710, BA, Brazil
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