2-(phenylthio)ethylidene derivatives as anti-Trypanosoma cruzi compounds: Structural design, synthesis and antiparasitic activity
作者:Marcos Veríssimo de Oliveira Cardoso、Gevanio Bezerra de Oliveira Filho、Lucianna Rabelo Pessoa de Siqueira、José Wanderlan Pontes Espíndola、Elany Barbosa da Silva、Andresa Pereira de Oliveira Mendes、Valéria Rêgo Alves Pereira、Maria Carolina Accioly Brelaz de Castro、Rafaela Salgado Ferreira、Filipe Silva Villela、Francielly Morais Rodrigues da Costa、Cássio Santana Meira、Diogo Rodrigo Magalhães Moreira、Milena Botelho Pereira Soares、Ana Cristina Lima Leite
DOI:10.1016/j.ejmech.2019.07.018
日期:2019.10
non-cytotoxic effect on mouse spleen cells, reaching a selective index of 95.1. Among the 22 compounds tested, six compounds present a better trypanocidal activity, and five compounds have an equipotent activity compared to benznidazole. Flow cytometry and ultrastructural analysis were performed and indicate that compound 18 causes parasite cell death through apoptosis and acts via an autophagic pathway.
恰加斯(Chagas)病是一种由原生动物寄生虫克氏锥虫引起的疾病。当前的化学疗法是基于苯硝唑,在某些国家,尼古丁酮是有效的,但是在慢性病中仍存在争议。它还可能导致严重的副作用,导致患者放弃治疗。另外,在本工作中,被报告的合成和新的2-(苯硫基)亚乙基缩氨基硫脲(杀锥虫活性4 - 15)和1,3-噻唑(16 - 26)。硫代半脲酮环化成1,3-噻唑类化合物可提高克氏锥虫寄生虫的细胞毒性,这表明了选择性化合物的存在。化合物18被确定为所有测试化合物中最有前途的,对拟鞭毛体形式的IC 50为2.6μM,对小鼠脾细胞无细胞毒性作用,选择性指数为95.1。在测试的22种化合物中,六种化合物表现出更好的锥虫杀灭活性,而五种化合物具有与苯硝唑相比的同等活性。进行了流式细胞仪和超微结构分析,结果表明化合物18通过凋亡引起寄生虫细胞死亡,并通过自噬途径起作用。