Design, synthesis, and in vitro and biological evaluation of potent amino acid-derived thiol inhibitors of the metallo-β-lactamase IMP-1
作者:Omid Khalili Arjomandi、Waleed M. Hussein、Peter Vella、Yusralina Yusof、Hanna E. Sidjabat、Gerhard Schenk、Ross P. McGeary
DOI:10.1016/j.ejmech.2016.03.017
日期:2016.5
There are currently no clinically available inhibitors of metallo-β-lactamases (MBLs). These enzymes confer resistance to bacteria against a broad range of commonly used β-lactam antibiotics, and are produced by an increasing number of bacterial pathogens. In this study, several thiol derivatives of l-amino acids were designed and synthesized, and their inhibitory effects against the metallo-β-lactamase
目前尚无临床上可利用的金属β-内酰胺酶(MBL)抑制剂。这些酶赋予细菌对广泛的常用β-内酰胺抗生素的抗性,并由越来越多的细菌病原体产生。在这项研究中,设计和合成了几种l-氨基酸的硫醇衍生物,并研究了它们对金属β-内酰胺酶IMP-1(亚类B1)的抑制作用。衍生自1-酪氨酸的最有效化合物表现出竞争性抑制作用,K i为86 nM。检验了该化合物使表达MBL的细菌易受亚胺培南敏感的能力。观察到MIC值降低了5.2倍。