维生素U模仿抗菌聚的结构元素,具有超高选择性,可有效治疗MRSA感染
Zhenyan Zhang1,2, Xiaodan Wang1,2, Jiaying Liu1
1School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China.
Angewandte Chemie (International ed. in English)
|December 22, 2023
概括
基于硫的新型聚胺具有强大的抗菌活性和高选择性,可以克服耐药性. G2-PM-1H+显示出作为抗MRSA等耐药细菌的药物候选人的前景.
科学领域:
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
- 药理学 药理学是指药理学的学科.
背景情况:
- 抗微生物 (AMP) 对于抗击细菌感染至关重要,因为它们的诱导耐药性较低.
- 提高AMP对细菌而不是宿主细胞的选择性仍然是药物开发中的重大挑战.
- 维生素U的结构激发了新型合成抗菌剂的灵感.
研究的目的:
- 合成和评估基于硫的新型聚类对强效和选择性抗微生物活性.
- 研究这些新型化合物的抗菌机制和活性谱.
- 评估化合物对抗耐药细菌菌株的治疗潜力.
主要方法:
- 合成不同分支和聚合度的硫基聚酸.
- 通过比较细菌和哺乳动物细胞毒性的体外测试来确定选择性指数.
- 对抗菌机制的分析,包括膜相互作用,反应性氧物种 (ROS) 生产和核糖体功能.
- 在混合细菌模型中对格拉姆阳性和格拉姆阴性细菌的疗效评估.
- 在体外和体外对抗抗甲基西林耐药黄金葡萄球菌 (MRSA) 的疗效研究.
主要成果:
- 聚G2-PM-1H+表现出强大的抗菌活性,具有16000的特殊选择性指数.
- 抗菌机制包括膜破坏,ROS生成和核糖体功能障碍.
- 改变化度使得对格拉姆阳性或格拉姆阴性细菌具有选择性活性.
- G2-PM-1H+在体外和体外模型中显示出对MRSA的疗效优于万科米辛.
- 该化合物具有很高的生物相容性.
结论:
- 基于硫的多,以G2-PM-1H+为例,是具有高选择性和强度的有希望的抗微生物药物类别.
- 通过多种机制,G2-PM-1H+有效地对抗MRSA等耐药细菌.
- 这些发现凸显了G2-PM-1H+作为治疗具有挑战性的细菌感染的可行药物候选者的潜力.
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