抗癌剂5-甲逆转了耐卡巴胺的格拉姆阴性病原体中的美罗胺耐药性
Muchen Zhang1, Siyuan Yang1, Yongqing Liu1
1National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China agricultural University, Beijing, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.
International journal of antimicrobial agents
|September 18, 2024
概括
抗癌药物5-甲 (5-FU) 有效地增强了美洛.
科学领域:
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
- 传染性疾病 传染性疾病
背景情况:
- 全球感染由耐卡巴胺抗性格拉姆阴性细菌的发病率不断上升,需要新的治疗策略.
- 抗生素辅助剂提供了一种有前途的方法来克服细菌耐药性并增强现有的抗生素疗效.
研究的目的:
- 调查5-甲 (5-FU) 作为对抗抗卡巴耐药格兰氏阴性病原体的美罗的辅助剂的潜力.
主要方法:
- 基于细胞的高通量查,以识别美罗胺增强剂.
- 对5 - FU与美罗因相结合的药理学评估,对抗性格拉姆阴性细菌的小组进行了评估.
- 对基因表达,细菌代谢和反应性氧物种 (ROS) 生产的机制研究.
- 使用小鼠系统性感染模型进行体内疗效评估.
主要成果:
- 5-甲 (5-FU) 降低了32倍的美罗的最小抑制度 (MIC) 对抗NDM-5阳性大肠杆菌.
- 5-FU在42种グラム阴性菌株中表现出增强效应,包括大肠杆菌,肺炎,P. aeruginosa和Acinetobacter spp.的临床分离物.
- 涉及抑制blaNDM-5基因转录,增强细菌代谢和增加ROS生产的机制.
- 在体内研究表明,5-FU与美罗胺相结合显著改善了生存率 (83.3%),而不是单独使用美罗胺 (16.7%).
结论:
- 5-甲 (5-FU) 显示出作为治疗由耐卡巴胺细菌引起的感染的美罗胺有效辅助剂的显著潜力.
- 组合疗法提供了一种有前途的策略,可以对抗具有挑战性的格兰氏阴性感染,并改善患者的治疗结果.
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