In Vitro Antileishmanial Activity of Sterols from Trametes versicolor (Bres. Rivarden)

Two ergostanes, 5α,8α-epidioxy-22E-ergosta-6,22-dien-3β-ol (1) and 5α-ergost-7,22-dien-3β-ol (2), and a lanostane, 3β-hydroxylanostan-8,24-diene-21-oic acid (trametenolic acid) (3), were isolated from an n-hexane extract prepared from the fruiting body of Trametes versicolor (Bres. Rivarden). The ac...

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Detalles Bibliográficos
Autores principales: Leliebre-Lara, Vivian, Monzote Fidalgo, Lianet, Pferschy-Wenzig, Eva-Maria, Kunert, Olaf, Nogueiras Lima, Clara, Bauer, Rudolf
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6273698/
https://www.ncbi.nlm.nih.gov/pubmed/27517895
http://dx.doi.org/10.3390/molecules21081045
Descripción
Sumario:Two ergostanes, 5α,8α-epidioxy-22E-ergosta-6,22-dien-3β-ol (1) and 5α-ergost-7,22-dien-3β-ol (2), and a lanostane, 3β-hydroxylanostan-8,24-diene-21-oic acid (trametenolic acid) (3), were isolated from an n-hexane extract prepared from the fruiting body of Trametes versicolor (Bres. Rivarden). The activity of the isolated sterols was evaluated against promastigotes and amastigotes of Leishmania amazonensis Lainson and Shaw, 1972. The lanostane, compound (3), showed the best inhibitory response (IC(50) promastigotes 2.9 ± 0.1 μM and IC(50) amastigotes 1.6 ± 0.1 μM). This effect was 25-fold higher compared with its cytotoxic effect on peritoneal macrophages from BALB/c mice. Therefore, trametenolic acid could be regarded as a promising lead for the synthesis of compounds with antileishmanial activity.

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