迪苏尔菲拉姆通过诱导依赖的活性氧物种来抑制细菌的生长
Qinyu Luo1, Zehua Wu1, Yihang Pan1
1Department of Clinical Research Center, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
Frontiers in microbiology
|August 1, 2025
概括
迪苏尔菲拉姆通过诱导氧化应激和改变细菌中的水平来表现出细菌静止作用. 它与像胆固醇这样的抗生素协同作用,表明作为抗菌辅助剂的潜力.
科学领域:
- 微生物学 微生物学
- 药物发现 药物发现 药物发现
- 生物化学 生物化学
背景情况:
- 新型抗菌机制对于对抗日益增长的细菌耐药性至关重要.
- 迪苏尔菲拉姆是一种酒精依赖药物,具有广泛的抗菌活性.
- 迪苏尔菲拉姆的精确抗菌机制尚未完全理解.
研究的目的:
- 为了阐明dissulfiram的抗菌机制.
- 为了研究dissulfiram与现有抗生素的协同作用.
- 探索迪苏尔菲拉姆作为抗菌辅助剂的潜力.
主要方法:
- 细菌生长曲线和殖民地形成单元测定评估了抗菌活性.
- 化物染色和流动细胞计评估了细胞毒性.
- 棋盘测试检查了与素和卡纳米辛的协同作用.
- 通过RNA测序确定了二硫治疗的大肠杆菌中的基因表达变化.
- 光探针测量了细胞内活性氧物种 (ROS) 水平.
主要成果:
- 迪苏尔菲拉姆对大肠杆菌和金黄色细菌有静菌作用,但没有杀菌作用.
- 迪苏尔菲拉姆在体外和体内显著增强了胆固醇和甲胺的杀菌活性.
- 转录组分析显示了氧化应激和相关的反应.
- 细菌静止效应被ROS清理剂和化剂逆转,而补充剂增强了ROS和生长抑制.
结论:
- 迪苏尔菲拉姆的细菌静止活性是由依赖,依赖ROS的机制调节的.
- 迪苏尔菲拉姆与胆固醇的协同作用表明,尽管标准治疗中的MIC度低于MIC度,但它作为辅助剂具有临床相关性.
- 迪苏尔菲拉姆通过氧化还原应激和调节损害了细菌防御和膜完整性.
- 作为抗微生物支架或辅助剂,二甲基酸盐化合物需要进一步调查.
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