Chloramphenicol and expression of multidrug efflux pump in Enterobacter aerogenes

被引:63
作者
Ghisalberti, D [1 ]
Masi, M [1 ]
Pagès, JM [1 ]
Chevalier, J [1 ]
机构
[1] Univ Mediterranee, Fac Med, IFR48, EA2197, F-13385 Marseille 05, France
关键词
efflux pump; Enterobacter aerogenes; chloramphenicol; efflux pump inhibitor; multidrug resistance;
D O I
10.1016/j.bbrc.2005.01.069
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Chloramphenicol has been reported to act as an inducer of the multidrug resistance in Escherichia coli. A resistant variant able to grow on plates containing 64 mug/ml chloramphenicol was obtained from the Enterobacter aerogenes ATCC 13048-type strain. Chloramphenicol resistance was due to an active efflux of this antibiotic and it was associated with resistance to fluoroquinolones and tetracycline, but not to aminoglycoside or beta-lactam antibiotics. MDR in the chloramphenicol-resistant variant is linked to the overexpression of the major AcrAB-TolC efflux system. This overexpression seems unrelated to the global Mar and the local AcrR regulatory pathways. (C) 2005 Published by Elsevier Inc.
引用
收藏
页码:1113 / 1118
页数:6
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