Mycobacteriophage putative GTPase-activating protein can potentiate antibiotics

Mycobacteriophage putative GTPase-activating protein can potentiate antibiotics
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分枝杆菌噬菌体推定的 GTP 酶激活蛋白可以增强抗生素的作用

DOI:
10.1007/s00253-016-7681-7
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发表时间:
2016-06
影响因子:
5
通讯作者:
Xie Jianping
Xie Jianping
中科院分区:
工程技术2区
文献类型:
--
作者:
Yan Shuangquan;Xu Mengmeng;Duan Xiangke;Yu Zhaoxiao;Li Qiming;Xie Longxiang;Fan Xiangyu;Xie Jianping

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抗菌素耐药(AR)病原菌感染率的飙升和有效抗生素的缺乏以及新的作用机制重新引起了人们对噬菌体治疗的兴趣。这种情况以耐药结核分枝杆菌引起的耐药结核病(TB)为例。噬菌体SWU1 A321_gp67编码一种可能的GTP酶激活蛋白。gp67过表达的耻垢分枝杆菌表现出菌落形成和生物膜形态的改变,并支持链霉素和卷曲霉素对分枝杆菌的疗效。gp67下调与细胞壁和生物膜发育相关的基因的转录。据我们所知,这是第一个表明除了溶酶或重组成分外,噬菌体蛋白还可以与现有抗生素协同作用的报告。噬菌体成分可能是寻找更好的抗生素增强剂的一条很有希望的新线索。
The soaring incidences of infection by antimicrobial resistant (AR) pathogens and shortage of effective antibiotics with new mechanisms of action have renewed interest in phage therapy. This scenario is exemplified by resistant tuberculosis (TB), caused by resistantMycobacterium tuberculosis. Mycobacteriophage SWU1 A321_gp67 encodes a putative GTPase-activating protein.Mycobacterium smegmatiswith gp67 overexpression showed changed colony formation and biofilm morphology and supports the efficacy of streptomycin and capreomycin againstMycobacterium.gp67 down-regulated the transcription of genes involved in cell wall and biofilm development. To our knowledge, this is the first report to show that phage protein in addition to lysin or recombination components can synergize with existing antibiotics. Phage components might represent a promising new clue for better antibiotic potentiators.
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