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从内生真菌提取物中获得的脂肪酶的杀利什曼原虫和杀真菌活性。

Leishmanicidal and fungicidal activity of lipases obtained from endophytic fungi extracts.

机构信息

Veterinarian Sciences Post Graduation Program, State University of Ceará, Campus Itaperi, Fortaleza, Ceará, Brazil.

Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-Agroindústria Tropical, Planalto do Pici, Fortaleza, Ceará, Brazil.

出版信息

PLoS One. 2018 Jun 18;13(6):e0196796. doi: 10.1371/journal.pone.0196796. eCollection 2018.

Abstract

This work describes the production of lipases from endophytic fungi: Vermisporium-like, Emericella nidulans, Dichotomophtora portulacae and D. boerhaaviae and the biological activity against the dermatophyte fungi Malassezia sp and Microsporum canis and the parasite Leishmania amazonensis. All fungal enzymes extract showed lipolysis action in the media that contains long carbon chain lipids. The proteomic analysis of lipases exhibits several molecules mostly ranging in size from 220 to 20 kDa, with clear differences in protein profile's yield. All fungal enzymes were competent to eliminate promastigote forms of Leishmania amazonensis at 5 mg.mL-1. The antileishmanial activity of lipases from Vermisporium-like, E. nidulans, D. portulacae and D. boerhaaviae in amastigote forms, promoted the reduction in viability of 78.88, 39.65, 63.17 and 98.13%, with selectivity index of 19.56, 30.68, 18.09 and 20.99. In relation to antifungal activity, Dichothomophtora enzymes demonstrate best action with MFC of 14.65 μg.mL-1 against Malassezia sp and Microsporum canis, respectively. These results allow us to infer that lipases from entophytic fungi displays activity against dermatophyte fungi (Malassezia sp. and Microsporum canis) as well as Leishmania.

摘要

本工作描述了从内生真菌(拟青霉属、构巢曲霉、Portulaca 二叉孢和 Boerhaavia 二叉孢)中生产脂肪酶,以及这些脂肪酶对皮肤真菌马拉色菌和犬小孢子菌和寄生虫利什曼原虫的生物学活性。所有真菌酶提取物在含有长链脂质的培养基中均显示出脂肪酶活性。脂肪酶的蛋白质组分析显示出几种分子,其大小主要在 220 到 20 kDa 之间,蛋白质谱的产量有明显差异。所有真菌酶在 5 mg.mL-1 时都能有效消除利什曼原虫的前鞭毛体形式。拟青霉属、构巢曲霉、Portulaca 二叉孢和 Boerhaavia 二叉孢的脂肪酶对无鞭毛体形式的抗利什曼活性,促进了 78.88%、39.65%、63.17%和 98.13%的活力降低,选择性指数分别为 19.56、30.68、18.09 和 20.99。关于抗真菌活性,Dichothomophtora 酶对马拉色菌和犬小孢子菌的最小抑菌浓度(MFC)分别为 14.65 μg.mL-1,表现出最佳活性。这些结果表明,内生真菌的脂肪酶对皮肤真菌(马拉色菌和犬小孢子菌)以及利什曼原虫具有活性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a28/6005525/342aeb83c33d/pone.0196796.g001.jpg

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