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Activity of Fenticonazole, Tioconazole and Nystatin on New World Leishmania Species

Author(s):

Eduardo Seiji Yamamoto, Jéssica Adriana Jesus, Adriana Bezerra-Souza, Márcia Dalastra Laurenti, Susan Pereira Ribeiro and Luiz Felipe Domingues Passero   Pages 1 - 9 ( 9 )

Abstract:


Leishmaniasis is an infectious disease caused by protozoal parasites belonging to Leishmania genus. Different clinical outcomes can be observed depending on the parasite species and health condition of patients. It can range from single cutaneous lesion until deadly visceral form. The treatment of all forms of leishmaniasis is based on pentavalent antimonials, and in some cases, the second-line drug, amphotericin B is used. Beside the toxicity of both drugs, parasites can be resistant to antimonial in some areas of the world. This makes fundamental the characterization of new drugs with leishmanicidal effect. Thus, the aim of the present work was to study the leishmanicidal activity of drugs able to interfere with ergosterol pathway (fenticonazole, tioconazole, nystatin, rosuvastatin and voriconazole) against promastigote and amastigote forms of L. (L.) amazonensis, L. (V.) braziliensis and L. (L.) infantum, and its impact on morphological and physiological changes in L. (L.) amazonensis or in host macrophages. We observed that fenticonazole, tioconazole and nystatin drugs eliminated promastigote and intracellular amastigotes, being fenticonazole and nystatin the most selective towards amastigote forms. Rosuvastatin and voriconazole did not present activity against amastigote forms of Leishmania sp. In addition, the drugs with leishmanicidal activity interfered with parasite mitochondrion. Although drugs did not stimulate NO and H2O2, specially fenticonazole was able to alkalize infected host macrophages. These results suggest well established and non-toxic antifungal drugs can be repurposed and used in leishmaniasis.

Keywords:

New World Leishmaniasis, Drug repurposing, Anti-fungal drugs, Anti-hyperlipidemic drugs, Nystatin, Fenticonazole, Tioconazole.

Affiliation:

Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, 01246-903, SP, Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, 01246-903, SP, São Paulo State University (UNESP), Institute of Biosciences, São Vicente, Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, 01246-903, SP, Pathology Department, Case Western Reserve University, 2103 Cornell Rd, room 5503, Cleveland, OH 44106 , São Paulo State University (UNESP), Institute of Biosciences, São Vicente, Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP



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