Abstract
The worldwide dissemination of ‹multi-drug resistant› (MDR) pathogens has severely reduced the efficacy of our antibiotic arsenal and increased the frequency of therapeutic failure. MDR bacteria over-express efflux pumps and this active mechanism can extrude all classes of antibiotics from the cell.
It is necessary to clearly decipher the genetic, structural and functional aspects of this transport system in order to combat this polyselective mechanism. By understanding how efflux pumps work we may be able to develop a new group of antibacterial agents, collectively termed efflux reversals, including membrane permeabilisers, efflux pump inhibitors and flux-competitive agents, specific blockers, energy poisons, etc. Several chemical families of efflux pump inhibitors have been described and characterized. Among them several inhibitor compounds demonstrate efficient blocking of the efflux pump activity involved in the MDR phenotype as observed in many Gram-negative clinical isolates. This new family of molecules represents the first antibacterial class of compound specifically targeting active transport in the bacterial cell.
Keywords: Antibiotic, antibacterial agent, bacterial transporter, chemosensitizer, efflux pump, efflux pump inhibitor, drug transporter, Gram negative, bacteria, genetic regulation cascade, membrane permeability
Current Medicinal Chemistry
Title: An Original Deal for New Molecule: Reversal of Efflux Pump Activity, A Rational Strategy to Combat Gram-Negative Resistant Bacteria
Volume: 18 Issue: 19
Author(s): J.-M. Pages, L. Amaral and S. Fanning
Affiliation:
Keywords: Antibiotic, antibacterial agent, bacterial transporter, chemosensitizer, efflux pump, efflux pump inhibitor, drug transporter, Gram negative, bacteria, genetic regulation cascade, membrane permeability
Abstract: The worldwide dissemination of ‹multi-drug resistant› (MDR) pathogens has severely reduced the efficacy of our antibiotic arsenal and increased the frequency of therapeutic failure. MDR bacteria over-express efflux pumps and this active mechanism can extrude all classes of antibiotics from the cell.
It is necessary to clearly decipher the genetic, structural and functional aspects of this transport system in order to combat this polyselective mechanism. By understanding how efflux pumps work we may be able to develop a new group of antibacterial agents, collectively termed efflux reversals, including membrane permeabilisers, efflux pump inhibitors and flux-competitive agents, specific blockers, energy poisons, etc. Several chemical families of efflux pump inhibitors have been described and characterized. Among them several inhibitor compounds demonstrate efficient blocking of the efflux pump activity involved in the MDR phenotype as observed in many Gram-negative clinical isolates. This new family of molecules represents the first antibacterial class of compound specifically targeting active transport in the bacterial cell.
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Pages J.-M., Amaral L. and Fanning S., An Original Deal for New Molecule: Reversal of Efflux Pump Activity, A Rational Strategy to Combat Gram-Negative Resistant Bacteria, Current Medicinal Chemistry 2011; 18 (19) . https://dx.doi.org/10.2174/092986711796150469
DOI https://dx.doi.org/10.2174/092986711796150469 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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