当前位置: X-MOL 学术Expert Rev. Anti Infect. Ther. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Mechanisms of antimicrobial resistance in Stenotrophomonas maltophilia: a review of current knowledge.
Expert Review of Anti-infective Therapy ( IF 5.7 ) Pub Date : 2020-02-21 , DOI: 10.1080/14787210.2020.1730178
Teresa Gil-Gil 1 , José Luis Martínez 1 , Paula Blanco 2
Affiliation  

Introduction: Stenotrophomonas maltophilia is a prototype of bacteria intrinsically resistant to antibiotics. The reduced susceptibility of this microorganism to antimicrobials mainly relies on the presence in its chromosome of genes encoding efflux pumps and antibiotic inactivating enzymes. Consequently, the therapeutic options for treating S. maltophilia infections are limited.Areas covered: Known mechanisms of intrinsic, acquired and phenotypic resistance to antibiotics of S. maltophilia and the consequences of such resistance for treating S. maltophilia infections are discussed. Acquisition of some genes, mainly those involved in co-trimoxazole resistance, contributes to acquired resistance. Mutation, mainly in the regulators of chromosomally-encoded antibiotic resistance genes, is a major cause for S. maltophilia acquisition of resistance. The expression of some of these genes is triggered by specific signals or stressors, which can lead to transient phenotypic resistance.Expert opinion: Treatment of S. maltophilia infections is difficult because this organism presents low susceptibility to antibiotics. Besides, it can acquire resistance to antimicrobials currently in use. Particularly problematic is the selection of mutants overexpressing efflux pumps since they present a multidrug resistance phenotype. The use of novel antimicrobials alone or in combination, together with the development of efflux pumps' inhibitors may help in fighting S. maltophilia infections.

中文翻译:

嗜麦芽窄食单胞菌的抗菌素耐药性机制:最新知识综述。

简介:嗜麦芽窄食单胞菌是一种对抗生素具有内在抵抗力的细菌的原型。该微生物对抗菌剂的敏感性降低主要取决于其染色体中存在编码外排泵和抗生素灭活酶的基因。因此,治疗嗜麦芽孢杆菌感染的治疗选择受到限制。涵盖的领域:讨论了对嗜麦芽孢杆菌抗生素的内在,获得性和表型抗性的已知机制,以及这种抗药性治疗嗜麦芽孢杆菌感染的后果。获得一些基因,主要是那些与三苯甲唑抗药性有关的基因,有助于获得性抗药性。突变,主要是在染色体编码的抗生素抗性基因的调节子中,是导致嗜麦芽链球菌获得抗性的主要原因。这些基因中的某些基因的表达是由特定的信号或应激源触发的,这可能导致短暂的表型耐药。专家意见:由于这种生物体对抗生素的敏感性较低,因此很难治疗嗜麦芽链球菌感染。此外,它可以获得对当前使用的抗菌剂的抗性。尤其成问题的是过表达外排泵的突变体的选择,因为它们表现出多药耐药性表型。单独使用或联合使用新型抗菌药物,以及外排泵抑制剂的开发,可能有助于对抗嗜麦芽链球菌感染。由于这种生物体对抗生素的敏感性较低,因此很难感染。此外,它可以获得对当前使用的抗菌剂的抗性。尤其成问题的是过表达外排泵的突变体的选择,因为它们表现出多药耐药性表型。单独使用或联合使用新型抗菌药物,以及外排泵抑制剂的开发,可能有助于对抗嗜麦芽链球菌感染。由于这种生物体对抗生素的敏感性较低,因此很难感染。此外,它可以获得对当前使用的抗菌剂的抗性。尤其成问题的是过表达外排泵的突变体的选择,因为它们表现出多药耐药性表型。单独使用或联合使用新型抗菌药物,以及外排泵抑制剂的开发,可能有助于对抗嗜麦芽链球菌感染。
更新日期:2020-03-30
down
wechat
bug