作者:Mei-Zhen Wei、Yan-Yan Zhu、Wen-Biao Zu、Huan Wang、Li-Yu Bai、Zhong-Shun Zhou、Yun-Li Zhao、Zhao-Jie Wang、Xiao-Dong Luo
DOI:10.1016/j.ejmech.2024.116401
日期:2024.5
Methicillin-resistant (MRSA) and vancomycin-resistant (VRE) cause more than 100,000 deaths each year, which need efficient and non-resistant antibacterial agents. SAR analysis of 162 flavonoids from the plant in this paper suggested that lipophilic group at C-3 was crucial, and then 63 novel flavonoid derivatives were designed and total synthesized. Among them, the most promising displayed potent bactericidal
耐甲氧西林(MRSA)和耐万古霉素(VRE)每年导致超过10万人死亡,这需要高效且不耐药的抗菌药物。本文对该植物中的162种黄酮类化合物进行了SAR分析,结果表明C-3位点的亲脂基团是关键,进而设计并合成了63种新型黄酮类化合物。其中,最有前途的对临床分离的MRSA和VRE(MIC = 0.25-1.00 μg/mL)表现出有效的杀菌活性,并且具有低毒性和高膜选择性。此外,机制见解表明,通过破坏生物膜和靶向膜来避免耐药性,而万古霉素对 MRSA 产生了 256 倍的耐药性,而氨苄西林在同样的 20 代诱导下对 VRE 产生了 16 倍的耐药性。消除小鼠皮肤MRSA感染模型(>99%)和腹部VRE感染模型(>92%)残留细菌,效果优于万古霉素和氨苄西林。