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2'-Hydroxyflavanone activity in vitro and in vivo against wild-type and antimony-resistant Leishmania amazonensis.
Gervazoni, Luiza F O; Gonçalves-Ozório, Gabriella; Almeida-Amaral, Elmo E.
Afiliação
  • Gervazoni LFO; Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil.
  • Gonçalves-Ozório G; Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil.
  • Almeida-Amaral EE; Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil.
PLoS Negl Trop Dis ; 12(12): e0006930, 2018 12.
Article em En | MEDLINE | ID: mdl-30521527
BACKGROUND: To overcome the current problems in leishmaniasis chemotherapy, natural products have become an interesting alternative over the past few decades. Flavonoids have been studied as promising family of compounds for leishmaniasis treatment. 2'-Hydroxyflavanone (2HF) is a flavanone, a class of flavonoid that has shown promising results in cancer studies. In this study, we demonstrated the effects of 2HF in vitro and in vivo against wild-type and antimony-resistant Leishmania amazonensis promastigotes. METHODOLOGY/PRINCIPAL FINDINGS: 2HF was effective against promastigotes and the intracellular amastigote form, decreasing the infection index in macrophages infected with wild-type and antimony-resistant promastigotes, but it was not toxic to macrophages. In silico analysis indicated 2HF as a good oral candidate for leishmaniasis treatment. In vivo, 2HF was able to reduce the lesion size and parasite load in a murine model of cutaneous leishmaniasis using wild-type and antimony-resistant promastigotes, demonstrating no cross-resistance with antimonials. CONCLUSIONS/SIGNIFICANCE: Taken together, these results suggest 2HF as a potential candidate for leishmaniasis chemotherapy for cutaneous leishmaniasis caused by both wild-type and antimony-resistant Leishmania species by oral administration. Furthermore, studies should be conducted to determine the ideal dose and therapeutic regimen.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Leishmaniose Cutânea / Flavanonas / Leishmania / Antiprotozoários Tipo de estudo: Prognostic_studies Limite: Animals / Female / Humans Idioma: En Revista: PLoS Negl Trop Dis Assunto da revista: MEDICINA TROPICAL Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Leishmaniose Cutânea / Flavanonas / Leishmania / Antiprotozoários Tipo de estudo: Prognostic_studies Limite: Animals / Female / Humans Idioma: En Revista: PLoS Negl Trop Dis Assunto da revista: MEDICINA TROPICAL Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos