Antileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasis

Detalhes bibliográficos
Autor(a) principal: Andrade Neto, Valter Viana
Data de Publicação: 2016
Outros Autores: Cunha Junior, Edézio Ferreira, Cavalheiro, Marilene Marcuzzo do Canto, Atella, Georgia Correa, Fernandes, Talita de Almeida, Costa, Paulo Roberto Ribeiro, Santos, Eduardo Caio Torres
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FIOCRUZ (ARCA)
Texto Completo: https://www.arca.fiocruz.br/handle/icict/17829
Resumo: Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Tripanosomatídeos. Rio de Janeiro, RJ. Brasil.
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spelling Andrade Neto, Valter VianaCunha Junior, Edézio FerreiraCavalheiro, Marilene Marcuzzo do CantoAtella, Georgia CorreaFernandes, Talita de AlmeidaCosta, Paulo Roberto RibeiroSantos, Eduardo Caio Torres2017-02-16T11:11:30Z2017-02-16T11:11:30Z2016ANDRADE NETO, Valter Viana; et al. Antileishmanial activity of ezetimibe: inhibition of sterol biosynthesis, in vitro synergy with azoles and efficacious in experimental cutaneous leishmaniasis. Antimicrob. Agents Chemother., 25p, Sept. 2016.0066-4804https://www.arca.fiocruz.br/handle/icict/1782910.1128/AAC.01545-161098-6596engAmerican Society for MicrobiologyAzóisEzetimibaLeishmania amazonensisReposicionamento de MedicamentosBiossíntese de esteróisSterol biosynthesisLeishmania amazonensisazolesezetimibedrug repositioningAntileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasisinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleFundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Tripanosomatídeos. Rio de Janeiro, RJ. Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Tripanosomatídeos. Rio de Janeiro, RJ. Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Tripanosomatídeos. Rio de Janeiro, RJ. Brasil.Universidade Federal do Rio de Janeiro. Instituto de Bioquímica Médica. Rio de Janeiro, RJ, Brasil.Universidade Federal do Rio de Janeiro. Instituto de Pesquisas de Produtos Naturais. Laboratório de Química Bioorgânica. Rio de Janeiro, RJ, Brasil.Universidade Federal do Rio de Janeiro. Instituto de Pesquisas de Produtos Naturais. Laboratório de Química Bioorgânica. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Tripanosomatídeos. Rio de Janeiro, RJ. Brasil.Leishmaniasis affects mainly low-income populations in tropical regions. Radical innovation in drug discovery is time-consuming and expensive, imposing severe restrictions on the ability to launch new chemical entities for the treatment of neglected diseases. Drug repositioning is an attractive strategy for addressing a specific demand more easily. In this project, we have evaluated the antileishmanial activities of 30 drugs currently in clinical use for various morbidities. Ezetimibe, clinically used to reduce intestinal cholesterol absorption in dyslipidemic patients, killed Leishmania amazonensis promastigotes with a 50% inhibitory concentration (IC50) of 30 μM. Morphological analysis revealed that ezetimibe caused the parasites to become rounded, with multiple nuclei and flagella. Analysis by gas chromatography (GC)-mass spectrometry (MS) showed that promastigotes treated with ezetimibe had smaller amounts of C-14-demethylated sterols, and accumulated more cholesterol and lanosterol, than untreated promastigotes. We then evaluated the combination of ezetimibe with well-known antileishmanial azoles. The fractional inhibitory concentration index (FICI) indicated synergy when ezetimibe was combined with ketoconazole or miconazole. The activity of ezetimibe against intracellular amastigotes was confirmed, with an IC50 of 20 μM, and ezetimibe reduced the IC90s of ketoconazole and miconazole from 11.3 and 11.5 μM to 4.14 and 8.25 μM, respectively. Subsequently, we confirmed the activity of ezetimibe in vivo, showing that it decreased lesion development and parasite loads in murine cutaneous leishmaniasis. 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dc.title.pt_BR.fl_str_mv Antileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasis
title Antileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasis
spellingShingle Antileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasis
Andrade Neto, Valter Viana
Azóis
Ezetimiba
Leishmania amazonensis
Reposicionamento de Medicamentos
Biossíntese de esteróis
Sterol biosynthesis
Leishmania amazonensis
azoles
ezetimibe
drug repositioning
title_short Antileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasis
title_full Antileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasis
title_fullStr Antileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasis
title_full_unstemmed Antileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasis
title_sort Antileishmanial Activity of Ezetimibe: Inhibition of Sterol Biosynthesis, In Vitro Synergy with Azoles, and Efficacy in Experimental Cutaneous Leishmaniasis
author Andrade Neto, Valter Viana
author_facet Andrade Neto, Valter Viana
Cunha Junior, Edézio Ferreira
Cavalheiro, Marilene Marcuzzo do Canto
Atella, Georgia Correa
Fernandes, Talita de Almeida
Costa, Paulo Roberto Ribeiro
Santos, Eduardo Caio Torres
author_role author
author2 Cunha Junior, Edézio Ferreira
Cavalheiro, Marilene Marcuzzo do Canto
Atella, Georgia Correa
Fernandes, Talita de Almeida
Costa, Paulo Roberto Ribeiro
Santos, Eduardo Caio Torres
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Andrade Neto, Valter Viana
Cunha Junior, Edézio Ferreira
Cavalheiro, Marilene Marcuzzo do Canto
Atella, Georgia Correa
Fernandes, Talita de Almeida
Costa, Paulo Roberto Ribeiro
Santos, Eduardo Caio Torres
dc.subject.other.pt_BR.fl_str_mv Azóis
Ezetimiba
Leishmania amazonensis
Reposicionamento de Medicamentos
Biossíntese de esteróis
topic Azóis
Ezetimiba
Leishmania amazonensis
Reposicionamento de Medicamentos
Biossíntese de esteróis
Sterol biosynthesis
Leishmania amazonensis
azoles
ezetimibe
drug repositioning
dc.subject.en.pt_BR.fl_str_mv Sterol biosynthesis
Leishmania amazonensis
azoles
ezetimibe
drug repositioning
description Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Tripanosomatídeos. Rio de Janeiro, RJ. Brasil.
publishDate 2016
dc.date.issued.fl_str_mv 2016
dc.date.accessioned.fl_str_mv 2017-02-16T11:11:30Z
dc.date.available.fl_str_mv 2017-02-16T11:11:30Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.citation.fl_str_mv ANDRADE NETO, Valter Viana; et al. Antileishmanial activity of ezetimibe: inhibition of sterol biosynthesis, in vitro synergy with azoles and efficacious in experimental cutaneous leishmaniasis. Antimicrob. Agents Chemother., 25p, Sept. 2016.
dc.identifier.uri.fl_str_mv https://www.arca.fiocruz.br/handle/icict/17829
dc.identifier.issn.pt_BR.fl_str_mv 0066-4804
dc.identifier.doi.none.fl_str_mv 10.1128/AAC.01545-16
dc.identifier.eissn.none.fl_str_mv 1098-6596
identifier_str_mv ANDRADE NETO, Valter Viana; et al. Antileishmanial activity of ezetimibe: inhibition of sterol biosynthesis, in vitro synergy with azoles and efficacious in experimental cutaneous leishmaniasis. Antimicrob. Agents Chemother., 25p, Sept. 2016.
0066-4804
10.1128/AAC.01545-16
1098-6596
url https://www.arca.fiocruz.br/handle/icict/17829
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Society for Microbiology
publisher.none.fl_str_mv American Society for Microbiology
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