Kinetics, Thermodynamics, and Structural Effects of Quinoline-2-Carboxylates, Zinc-Binding Inhibitors of New Delhi Metallo-β-lactamase-1 Re-sensitizing Multidrug-Resistant Bacteria for Carbapenems
作者:Yuwen Jia、Barbara Schroeder、Yvonne Pfeifer、Christopher Fröhlich、Lihua Deng、Christoph Arkona、Benno Kuropka、Jana Sticht、Kenichi Ataka、Silke Bergemann、Gerhard Wolber、Christoph Nitsche、Martin Mielke、Hanna-Kirsti S. Leiros、Guido Werner、Jörg Rademann
DOI:10.1021/acs.jmedchem.3c00171
日期:2023.9.14
Carbapenem resistance mediated by metallo-β-lactamases (MBL) such as New Delhi metallo-β-lactamase-1 (NDM-1) has become a major factor threatening the efficacy of essential β-lactam antibiotics. Starting from hit fragment dipicolinic acid (DPA), 8-hydroxy- and 8-sulfonamido-quinoline-2-carboxylic acids were developed as inhibitors of NDM-1 with highly improved inhibitory activity and binding affinity
由金属-β-内酰胺酶(MBL)如新德里金属-β-内酰胺酶-1(NDM-1)介导的碳青霉烯类耐药性已成为威胁必需β-内酰胺抗生素疗效的主要因素。从命中片段吡啶二羧酸 (DPA) 开始,8-羟基-和 8-磺酰胺基-喹啉-2-羧酸被开发为 NDM-1 抑制剂,具有高度改进的抑制活性和结合亲和力。天然蛋白质质谱和生物层干涉测量法证明,最活跃的化合物与两个锌离子形成可逆非活性三元蛋白质抑制剂复合物。通过等温滴定量热法和同位素标记蛋白质的核磁共振波谱显示 NDM-1 结构的修饰具有显着的熵增益。最好的化合物是 NDM-1 和其他代表性 MBL 的有效抑制剂,对人类锌结合酶没有或很少有抑制作用。这些抑制剂显着降低了美罗培南对重组表达bla NDM-1 的多重耐药细菌以及几种多重耐药临床菌株的最低抑菌浓度 (MIC),其浓度对人体细胞无毒。