现型查揭示了一种高度选择性的基于phthalimide的化合物,具有抗leishmanial活性
Farnaz Zahedifard1, Meenakshi Bansal2,3, Neha Sharma2
1Drug Discovery and Evaluation Unit, Department of Parasitology, Faculty of Science, Charles University in Prague, Biocev, Vestec, Czech Republic.
PLoS neglected tropical diseases
|March 25, 2024
概括
研究人员选了甲胺 (PHT) 和乙胺 (HEA) 衍生物对寄生虫感染. PHT-39对莱什曼尼亚婴儿细胞内巨菌具有很高的疗效,具有有前途的选择性,这表明与其他抗莱什曼尼亚药物共享细胞进入路径.
科学领域:
- 药用化学 医学化学
- 寄生虫学的寄生虫学
- 药物发现 药物发现 药物发现
背景情况:
- 聚胺 (PHT) 和乙胺 (HEA) 药被探索用于抗寄生虫药物开发.
- 现有的莱什曼病治疗方法需要新的,具有成本效益和高效的替代方案.
- 有效的抗莱什曼病药必须穿透宿主细胞以消除细胞内寄生虫.
研究的目的:
- 通过PHT和HEA衍生物的表型查来识别新型抗寄生素化合物.
- 评估已识别的化合物对莱什马尼亚婴儿细胞内巨菌的疗效.
- 阐明有前途的候选药物的作用模式和细胞进入途径.
主要方法:
- 对PHT和HEA衍生物进行表型查,以对抗原体寄生虫,包括Entamoeba histolytica,Trypanosoma brucei和Leishmania spp.
- 内巨试验,以评估化合物对L.婴儿细胞内巨的疗效.
- 在HepG2细胞中进行细胞毒性测试和使用T. bruceiRNA干扰库进行化学基因分析.
主要成果:
- 几种化合物对E. histolytica,T. brucei和Leishmania spp.表现出显著的活性.
- PHT-39对L.婴儿细胞内巨菌 (EC50 = 1.2 ± 3.2 μM) 具有强大的有效性,具有高选择性 (>90倍).
- 化学遗传学分析表明,PHT-39利用P型ATPase进入细胞,与米尔特福辛和安福特素共享.
结论:
- PHT-39是一种非常有前途的抗莱什曼病候选物,具有有利的选择性概况和定义的细胞吸收机制.
- 目前正在对PHT-39进行进一步的衍生,以优化其药理特性,以实现潜在的治疗应用.
- 该研究强调了PHT和HEA支架在开发新的抗寄生虫剂方面的潜力.
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