从性淋巴瘤激酶抑制剂的结构导向转化为Plasmodium lysyl-tRNA合成酶选择性抑制剂
Jintong Zhou1,2, Mingyu Xia2, Zhenghui Huang3
1School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, China.
Communications biology
|June 18, 2024
概括
研究人员重新使用了一种形淋巴瘤激酶 (ALK) 抑制剂,以向疟疾寄生虫中的lysyl-tRNA合成酶 (LysRS). 类似的开发改善了对Plasmodium falciparum LysRS的功效,提供了新的抗疟疾药物策略.
科学领域:
- 药用化学 医学化学
- 寄生虫学的寄生虫学
- 生物化学 生化学
背景情况:
- 氨基酸-tRNA合成酶 (aaRSs) 对于蛋白质合成至关重要,并代表了可行的药物标.
- lysyl-tRNA合成酶 (LysRS) 是抗疟疾药物开发的一个有希望的目标.
- 无塑性淋巴瘤激酶 (ALK) 抑制剂ASP3026被确定为一种Plasmodium falciparum LysRS (PfLysRS) 抑制剂.
研究的目的:
- 开发ASP3026的新型类似物,以提高对PfLysRS.的选择性和效力.
- 研究结构-活性关系,以提高抗疟疾疗效.
主要方法:
- 使用了晶结构分析和生物化学测定.
- 合成和评估ASP3026类似物,包括共价修饰.
- 对 PfLysRS,ALK 和 Plasmodium falciparum 寄生虫的抑制活性进行评估.
主要成果:
- 领先的模拟物,化合物36,与PfLysRS.表现出15.9nM的解离常数.
- 通过化合物36观察到对PfLysRS和寄生虫的增强抑制功效.
- 化合物36K3,L-氨酸合物,显示增加了PfLysRS抑制和减少了ALK活性,但没有改善寄生虫抑制.
结论:
- 激酶抑制剂的衍生可以重新定位以准aaRS.
- 需要进一步优化,以增强寄生虫抑制活性.
- 这项研究为开发针对PfLys.RS的新型抗疟疾药物提供了基础.
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