Department of Chemistry, Washington University in St. Louis, One Brookings Drive, St. Louis, MO 63130, USA.
J Mol Biol. 2019 Aug 23;431(18):3370-3399. doi: 10.1016/j.jmb.2019.06.033. Epub 2019 Jul 6.
The biosynthesis of antibiotics and self-protection mechanisms employed by antibiotic producers are an integral part of the growing antibiotic resistance threat. The origins of clinically relevant antibiotic resistance genes found in human pathogens have been traced to ancient microbial producers of antibiotics in natural environments. Widespread and frequent antibiotic use amplifies environmental pools of antibiotic resistance genes and increases the likelihood for the selection of a resistance event in human pathogens. This perspective will provide an overview of the origins of antibiotic resistance to highlight the crossroads of antibiotic biosynthesis and producer self-protection that result in clinically relevant resistance mechanisms. Some case studies of synergistic antibiotic combinations, adjuvants, and hybrid antibiotics will also be presented to show how native antibiotic producers manage the emergence of antibiotic resistance.
抗生素的生物合成和抗生素生产者采用的自我保护机制是不断加剧的抗生素耐药性威胁的一个组成部分。在人类病原体中发现的具有临床相关性的抗生素耐药基因起源于天然环境中抗生素的古老微生物生产者。广泛和频繁地使用抗生素会扩大环境中抗生素耐药基因库,并增加人类病原体中出现耐药事件的可能性。本观点将概述抗生素耐药性的起源,以突出抗生素生物合成和生产者自我保护的交叉点,从而产生具有临床相关性的耐药机制。还将介绍一些协同抗生素组合、佐剂和混合抗生素的案例研究,以展示天然抗生素生产者如何应对抗生素耐药性的出现。