Virtual Screening Approach and Investigation of Structure–Activity Relationships To Discover Novel Bacterial Topoisomerase Inhibitors Targeting Gram-Positive and Gram-Negative Pathogens
作者:Gabriele Magarò、Federica Prati、Barbara Garofalo、Gaia Corso、Guido Furlotti、Claudia Apicella、Giorgina Mangano、Noemi D’Atanasio、Daniel Robinson、Francesco Paolo Di Giorgio、Rosella Ombrato
DOI:10.1021/acs.jmedchem.9b00394
日期:2019.8.22
against multidrug-resistant pathogens. Novel bacterial topoisomerase inhibitors (NBTIs) provide a new strategy for investigating the well-validated DNA gyrase and topoisomerase IV targets while preventing cross-resistance issues. On this basis, starting from a virtual screening campaign and subsequent structure-based hit optimization guided by X-ray studies, a novel class of piperazine-like NBTIs with
细菌耐药性迅速增加,需要紧急鉴定对多种药物耐药的病原体有效的新型抗菌药物。新型细菌拓扑异构酶抑制剂(NBTI)为研究经过充分验证的DNA促旋酶和拓扑异构酶IV靶标提供了一种新策略,同时防止了交叉耐药性问题。在此基础上,从虚拟筛选活动和随后的X射线研究指导的基于结构的命中优化开始,鉴定出一类新型的哌嗪样NBTI,它们对金黄色葡萄球菌和大肠杆菌DNA促旋酶和拓扑异构酶IV具有出色的酶促活性。值得注意的是,化合物(±)-33,(±)-35和(±)-36具有有效且平衡的多靶标酶学特征,对选定的革兰氏阳性和革兰氏阴性病原体表现出优异的功效,以及与临床相关的耐药菌株。总体而言,由于广谱抗菌活性和良好的体外安全性,本文所述的新NBTI化学型可作为开发针对严重感染的新疗法的基础。