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Queiroz-Souza P, Galue-Parra A, Silveira Moraes L, Macedo CG, Rodrigues APD, H. S. Marinho V, H. Holanda F, M. Ferreira I, Oliveira da Silva E. Polymeric nanoparticles containing kojic acid induce structural alterations and apoptosis-like death in Leishmania ( Leishmania) amazonensis. Front Pharmacol 2024; 15:1331240. [PMID: 38323082 PMCID: PMC10844493 DOI: 10.3389/fphar.2024.1331240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/02/2024] [Indexed: 02/08/2024] Open
Abstract
Leishmaniasis encompasses a cluster of neglected tropical diseases triggered by kinetoplastid phatogens belonging to the genus Leishmania. Current therapeutic approaches are toxic, expensive, and require long-term treatment. Nanoparticles are emerging as a new alternative for the treatment of neglected tropical diseases. Silk Fibroin is a biocompatible and amphiphilic protein that can be used for formulating nanoemulsions, while kojic acid is a secondary metabolite with antileishmanial actions. Thus, this study evaluated the efficacy of a nanoemulsion, formulated with silk fibroin as the surfactant and containing kojic acid (NanoFKA), against promastigote and amastigote forms of Leishmania (Leishmania) amazonensis. The NanoFKA had an average particle size of 176 nm, Polydispersity Index (PDI) of 0.370, and a Zeta Potential of -32.3 mV. It presented inhibitory concentration (IC50) values of >56 μg/mL and >7 μg/mL for the promastigote and amastigote forms, respectively. Ultrastructural analysis, cell cycle distribution and phosphatidylserine exposure showed that NanoFKA treatment induces apoptosis-like cell death and cell cycle arrest in L. (L.) amazonensis. In addition, NanoFKA exhibited no cytotoxicity against macrophages. Given these results, NanoFKA present leishmanicidal activity against L. (L.) amazonensis.
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Affiliation(s)
- Poliana Queiroz-Souza
- Laboratory of Structural Biology, Institute of Biological Sciences, Federal University of Para, Belém, Pará, Brazil
| | - Adan Galue-Parra
- National Institute of Science and Technology in Structural Biology and Bioimaging, Rio de Janeiro, Brazil
| | - Lienne Silveira Moraes
- Laboratory of Structural Biology, Institute of Biological Sciences, Federal University of Para, Belém, Pará, Brazil
| | - Caroline Gomes Macedo
- Laboratory of Structural Biology, Institute of Biological Sciences, Federal University of Para, Belém, Pará, Brazil
| | - Ana Paula Drummond Rodrigues
- Laboratory of Electron Microscopy, Department of Health Surveillance, Ministry of Health, Evandro Chagas Institute, Belém, Pará, Brazil
| | - Victor H. S. Marinho
- Laboratory of Biocatalysis and Applied Organic Synthesis, Federal University of Amapá, Macapá, Amapá, Brazil
| | - Fabricio H. Holanda
- Laboratory of Biocatalysis and Applied Organic Synthesis, Federal University of Amapá, Macapá, Amapá, Brazil
| | - Irlon M. Ferreira
- Laboratory of Biocatalysis and Applied Organic Synthesis, Federal University of Amapá, Macapá, Amapá, Brazil
| | - Edilene Oliveira da Silva
- Laboratory of Structural Biology, Institute of Biological Sciences, Federal University of Para, Belém, Pará, Brazil
- National Institute of Science and Technology in Structural Biology and Bioimaging, Rio de Janeiro, Brazil
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