Resveratrol analogues present effective antileishmanial activity against promastigotes and amastigotes from distinct <i>Leishmania</i> species by multitarget action in the parasites
作者:Luciana Maria Ribeiro Antinarelli、Raissa Soares Meinel、Eduardo Antonio Ferraz Coelho、Adilson David da Silva、Elaine Soares Coimbra
DOI:10.1111/jphp.13177
日期:2019.11.8
OBJECTIVES The in vitro antileishmanial effect of analogues of resveratrol (AR) present in the N-aryl imines and N-aryl hydrazones series was investigated. In addition, possible parasite targets were evaluated. METHODS Antipromastigote activity of Leishmania amazonensis, L. braziliensis and L. infantum, as well as the cytotoxicity on macrophages was determined by MTT assay and L. braziliensis-infected
目的 研究 N-芳基亚胺和 N-芳基腙系列中存在的白藜芦醇 (AR) 类似物的体外驱虫作用。此外,还评估了可能的寄生虫目标。方法MTT法测定亚马逊利什曼原虫、巴西利什曼原虫和婴儿利什曼原虫的抗前鞭毛体活性及对巨噬细胞的细胞毒性,吉姆萨染色法测定巴西利什曼原虫感染巨噬细胞的作用。染色后,通过流式细胞术或荧光显微镜分析对寄生虫靶标的影响。关键发现 在测试的化合物中,衍生物 AR26 对所有利什曼原虫的前鞭毛体效果最好(IC50 < 3.0 µg/ml),比对照药物米替福新更有效。AR26 对巴西乳杆菌的无鞭毛体也有效(IC50 = 15.9 µg/ml),对哺乳动物细胞毒性低。AR26对巴西乳杆菌前鞭毛体作用机制的评价表明线粒体电位去极化、质膜透化、细胞周期进程的干扰和自噬泡的积累。此外,在处理过的巴西乳杆菌-巨噬细胞中检测到活性氧水平的任何增加。结论 数据表明,AR26 的杀虫活性与多靶点作