新型部分可逆的NDM-1抑制剂基于天然存在的houttuyninynin
Lifang Wang1, Yaowen Liang1, Pan Luo1
1School of Chemical Engineering and Technology, Guangdong Engineering Technology Research Center for Platform Chemicals from Marine Biomass and Their Functionalization, Sun Yat-sen University, Zhuhai 519082, PR China.
Bioorganic chemistry
|April 7, 2024
概括
新型丁氨酸硫酸衍生物显示出新德里的金属β-乳酸酶1 (NDM-1) 抑制剂的潜力. 这些化合物部分共同抑制NDM-1,恢复抗生素对耐药细菌的有效性.
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:
- "超级细菌"传染病的兴起需要对新德里的金属β-乳糖酶1 (NDM-1) 发现新型抑制剂.
- NDM-1是一种关键的酶,可以对广泛的β-乳糖抗生素产生耐药性.
研究的目的:
- 从天然产品及其衍生物中识别和描述新型NDM-1抑制剂.
- 研究潜在的NDM-1抑制剂的抑制机制和结构-活性关系.
主要方法:
- 丁胺硫酸盐衍生物的合成和表征.
- 在体外酶抑制试验测试以确定IC50值.
- 基于细胞的测试,以评估与美罗对NDM-1产生细菌的协同效应.
主要成果:
- 天然存在的houttuynin及其硫酸盐衍生物显示出对NDM-1的抑制活性.
- 硫酸盐衍生物表现出一种新的,部分共价的抑制机制.
- 结构-活性关系研究表明,一个长的异质侧链和一个基团对于抑制疗效至关重要.
- 具有较长侧链的同类物 (SNH-2至SNH-5) 显示出强烈的抑制 (IC50:1.11.5μM).
- 这些化合物在基于细胞的测试中恢复了美罗对NDM-1-产生大肠杆菌的活性.
结论:
- 胡丁胺硫酸衍生物是具有独特机制的有前途的NDM-1抑制剂.
- 结构特征,特别是侧链长度和化弹头,对于强大的NDM-1抑制至关重要.
- 这些化合物代表了对抗NDM-1-介导抗生素耐药性的潜在治疗剂.
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