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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2012, Vol. 17 ›› Issue (5): 593-600.

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Relation between bacterial efflux pump and antibiotic resistance

SUN Yuan, ZHA Wei-bin, ZHOU Fang, WU Xiao-lan, ZHANG Jing-wei, WANG Guang-ji   

  1. Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
  • Received:2011-12-17 Revised:2012-03-02 Online:2012-05-26 Published:2012-05-28

Abstract: Drug resistance in bacteria has attracted much attention in clinical antibacterial therapy for years. In addition to the well known mechanisms, such as inactivation of drugs and alteration of targets, drug extruding pumps also play a major role in resistance to antibacterials. Efflux pumps are widespread in bacteria and have broad variety of substrates. Their presence contributes both intrinsic and acquired bacterial resistance. Efflux-mediated drug-resistance has been recognized as the major mechanism of resistance to antibacterial agents in Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. The impact of antibiotic efflux pumps on therapy must be taken fully into account for the selection of antimicrobials. The design of specific, potent inhibitors appears to be an important goal for the improved control of infectious diseases in the near future. An alternative approach is to develop antibacterials that would bypass the action of efflux pumps. This paper will review recent progress on the role of bacterial efflux transporters in antibiotic resistance from the aspects of classification, structure, regulation and the inhibitors, which will provide references for the further investigation.

Key words: Efflux pump, Bacteria, Antibiotics, Drug resistance

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