以结构为导向的优化Ebselen衍生品作为强大的NDM-1抑制剂 逆转美罗胺耐药性
Yan Guo1, Chenyu Liu2, Wandong Liu3
1State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China.
Journal of medicinal chemistry
|November 13, 2025
概括
一种新型化合物27k有效地抑制了新德里的金属β-乳糖酶-1 (NDM-1) 超级细菌. 这种NDM-1抑制剂恢复了抗生素的有效性,并减少了体内细菌负载,为抗生素耐药性提供了一个有前途的解决方案.
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:
- 新德里金属β-乳糖酶-1 (NDM-1) 的全球传播影响了必需的β-乳糖抗生素的有效性.
- 紧急开发NDM-1抑制剂对于对抗NDM-1介导的细菌耐药性至关重要.
研究的目的:
- 设计和合成新的NDM-1抑制剂.
- 评估这些抑制剂在恢复针对NDM-1产生细菌的抗生素活性方面的有效性.
主要方法:
- 埃布塞伦被用作设计59种新衍生物的化合物.
- 在体外酶抑制试验中确定了化合物对NDM-1的功效.
- 最低抑制度 (MIC) 测定评估了化合物27k与美罗 (Mem) 的协同效应.
- 在小鼠体内研究评估了组合治疗的疗效.
主要成果:
- 化合物27k表现出强大的NDM-1抑制,IC50为1.12μM.
- 27k和Mem的组合在NDM-1分离物中减少了美罗MIC的4-16倍.
- 27k和Mem组合在小鼠模型中显著抑制了细菌负载.
- 化合物27k通过Se-S键对NDM-1进行共价结合,抑制其活性.
结论:
- 化合物27k是一种强大的NDM-1共价抑制剂.
- 27k显示出作为一种化合物的潜力,可以克服NDM-1-介导的抗生素耐药性.
- 这一发现为恢复β-乳酸抗生素临床功效提供了一个有希望的策略.
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