开发针对线粒体细菌的狭窄光谱拓酶向抗菌剂
Maša Sterle1, Eva Habjan2, Martina Piga1
1University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia.
European journal of medicinal chemistry
|July 25, 2024
概括
新的药物候选物针对菌根细菌的DNA旋转酶显示出对Mycobacterium结核病和Mycobacterium的强有力的活性. 这些化合物有效地减少了巨细胞内的细菌负载,并对菌根菌表现出选择性,为新的结核病治疗提供了有希望的途径.
科学领域:
- 药用化学 医学化学
- 微生物学 微生物学
- 药物发现 药物发现 药物发现
背景情况:
- 菌根菌感染,包括结核病和,对全球健康构成重大挑战.
- 开发具有提高疗效和选择性的新型抗菌菌剂对于对抗耐药性至关重要.
研究的目的:
- 发现和描述基于2-pyrrolamidobenzothiazole的细菌DNA旋转酶的新型抑制剂.
- 评估这些化合物的抗菌活性,选择性和细胞透率,以对抗致病性菌根菌.
主要方法:
- 合成的2-pyrrolamidobenzothiazole衍生品. 这是一个非常好的方法.
- 在体外测试对抗 Mycobacterium tuberculosis 和 Mycobacterium abscessus 的抗菌活性,包括确定 MIC90 值.
- 对DNA回旋酶抑制 (IC50值) 和对细菌拓酶的选择性进行评估.
- 评价细胞透和减少感染巨细胞的细胞内细菌负载.
- 测量化合物溶解度和与血蛋白结合的情况.
主要成果:
- 化合物49和51对M.结核病和M.瘤表现出强大的抗菌活性,显然更喜欢菌根菌.
- 化合物51强烈抑制了M.结核病DNA旋转酶 (IC50=4.1nM),并对细菌拓酶具有选择性.
- 这两种化合物都透了受感染的巨细胞,并减少了细胞内M.结核病.
- 化合物49表现出有利的药理动力学特性,包括良好的溶解性和低血蛋白结合性.
结论:
- 2-pyrrolamidobenzothiazole衍生物是真菌细菌DNA旋转酶的有效抑制剂.
- 化合物49和51代表了开发针对菌根菌感染的新治疗方法的有希望的线索.
- 微调分子特性可以产生选择性的DNA旋转酶B抑制剂,最大限度地降低抗性和非目标效应.
关键词:
DNA 旋转酶 DNA 旋转酶这种细菌是Mycobacterium abscessus.结核病菌菌菌的结核病菌的结核病菌.没有结核的真菌菌.班佐提亚 (benzothiazole) 是一种一种抑制剂抑制剂的使用更多相关视频
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