Mechanisms of Antibiotic Tolerance in Mycobacterium avium Complex: Lessons From Related Mycobacteria.

Mechanisms of Antibiotic Tolerance in Mycobacterium avium Complex: Lessons From Related Mycobacteria.
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DOI:
10.3389/fmicb.2020.573983
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发表时间:
2020
影响因子:
5.2
通讯作者:
Karakousis PC
Karakousis PC
中科院分区:
生物学2区
文献类型:
--
作者:
Parker H;Lorenc R;Ruelas Castillo J;Karakousis PC

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鸟分枝杆菌复合群(MAC)是世界范围内最常见的引起肺部感染的非结核分枝杆菌。治疗MAC引起的肺部疾病所需的漫长而复杂的治疗至少部分是由于抗生素耐受性现象造成的。在这篇综述中,我们将定义抗生素耐受性,并将其与持久性和抗生素耐药性进行对比。我们将讨论生理相关的压力条件下,诱导改变代谢和抗生素耐药性的分枝杆菌。接下来,我们将回顾细菌抗生素耐受性的一般分子机制,特别是MAC和相关分枝杆菌,包括结核分枝杆菌,重点是MAC中含有显着序列同源性的基因。对抗生素耐受机制的进一步了解可以为靶向耐药分枝杆菌的新方法奠定基础,其目标是缩短治愈性治疗的持续时间并提高MAC患者的生存率。
Mycobacterium avium complex (MAC) species are the most commonly isolated nontuberculous mycobacteria to cause pulmonary infections worldwide. The lengthy and complicated therapy required to cure lung disease due to MAC is at least in part due to the phenomenon of antibiotic tolerance. In this review, we will define antibiotic tolerance and contrast it with persistence and antibiotic resistance. We will discuss physiologically relevant stress conditions that induce altered metabolism and antibiotic tolerance in mycobacteria. Next, we will review general molecular mechanisms underlying bacterial antibiotic tolerance, particularly those described for MAC and related mycobacteria, including Mycobacterium tuberculosis, with a focus on genes containing significant sequence homology in MAC. An improved understanding of antibiotic tolerance mechanisms can lay the foundation for novel approaches to target antibiotic-tolerant mycobacteria, with the goal of shortening the duration of curative treatment and improving survival in patients with MAC.
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