Thiazolyl hydrazineylidenyl indolones as unique potential multitargeting broad-spectrum antimicrobial agents
作者:Wen-Hao Zhao、Jia-He Xu、Vijai Kumar Reddy Tangadanchu、Cheng-He Zhou
DOI:10.1016/j.ejmech.2023.115452
日期:2023.8
bactericidal ability, good antibiofilm activity and promising pharmacokinetic properties, but also could significantly impede the development of bacterial resistance. Preliminary exploration of antibacterial mechanism revealed that THI 6c could effectively penetrate the cell membrane of MRSA and embed DNA to form 6c‒DNA supramolecular complex and thus hinder DNA replication. Moreover, THI 6c could reduce
致病微生物和耐药微生物的出现严重威胁着公共安全。这项工作构建了一种独特的噻唑基亚肼基吲哚酮(THIs) 来对抗全球微生物的多重耐药性。生物活性评估发现,一些目标 THIs对测试菌株显示出比临床氯霉素、诺氟沙星、头孢地尼或氟康唑更优越的抗菌效果。值得注意的是,丁基 THI 6c显示出广泛的抗菌谱,MIC 仅为 0.25–1 μg/mL。高活性的THI 6c不仅表现出低细胞毒性和溶血性、快速杀菌能力、良好的抗生物膜活性和良好的药代动力学。特性,但也可能显着阻碍细菌耐药性的发展。抗菌机制初步探索表明,THI 6c可有效穿透MRSA细胞膜嵌入DNA,形成6c-DNA超分子复合物,从而阻碍DNA复制。此外,THI6c可以降低细胞代谢活性,这可能是由于 THI6c可以靶向 MRSA 的丙酮酸激酶并干扰酶的功能。这些结果为进一步开发噻唑基亚肼基吲哚酮作为新型广谱抗菌剂提供了有力的信息。