Mechanism of Action and Resistance to Daptomycin in Staphylococcus aureus and Enterococci.

Mechanism of Action and Resistance to Daptomycin in Staphylococcus aureus and Enterococci.
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DOI:
10.1101/cshperspect.a026997
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发表时间:
2016-11-01
影响因子:
5.4
通讯作者:
Arias CA
Arias CA
中科院分区:
医学2区
文献类型:
--
作者:
Miller WR;Bayer AS;Arias CA

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脂肽是一种天然产物抗生素,由一个带有脂尾的多肽核心组成,具有一系列不同的靶生物和作用机制。达托霉素就是这些化合物中对革兰氏阳性菌具有特殊活性的一个例子。由于革兰氏阳性菌存在多重耐药,尤其是耐甲氧西林金黄色葡萄球菌(MRSA)和万古霉素耐药肠球菌(VRE),达托霉素在对抗革兰氏阳性菌感染方面变得越来越重要。然而,在治疗过程中出现对达托霉素的耐药性是一个众所周知的现象,它威胁到这种抗生素的临床使用,进一步限制了对MRSA和VRE的治疗选择。本章将回顾达托霉素发展的历史方面,以及在临床相关背景下对其作用机制和耐药途径的现有知识。
Lipopeptides are natural product antibiotics that consist of a peptide core with a lipid tail with a diverse array of target organisms and mechanisms of action. Daptomycin is an example of these compounds with specific activity against Gram-positive organisms. Daptomycin has become increasingly important to combat infections caused by Gram-positive bacteria due to the presence of multidrug resistance in these organisms, particularly in methicillin resistant Staphylococcus aureus (MRSA) and vancomycin resistant enterococci (VRE). However, emergence of resistance to daptomycin during therapy is a well described phenomenon that threatens the clinical use of this antibiotic, limiting further the therapeutic options against both MRSA and VRE. This chapter will review the historical aspects of the development of daptomycin, as well as the current knowledge on its mechanism of action and pathways to resistance in a clinically relevant context.
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