Quinolone resistance: much more than predicted

Since quinolones are synthetic antibiotics, it was predicted that mutations in target genes would be the only mechanism through which resistance could be acquired, because there will not be quinolone resistance genes in nature. Contrary to this prediction, a variety of elements ranging from efflux p...

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Main Authors: Alvaro eHernandez, Maria Blanca Sanchez, Jose L Martinez
Format: Article
Language:English
Published: Frontiers Media S.A. 2011-02-01
Series:Frontiers in Microbiology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fmicb.2011.00022/full
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author Alvaro eHernandez
Maria Blanca Sanchez
Jose L Martinez
author_facet Alvaro eHernandez
Maria Blanca Sanchez
Jose L Martinez
author_sort Alvaro eHernandez
collection DOAJ
description Since quinolones are synthetic antibiotics, it was predicted that mutations in target genes would be the only mechanism through which resistance could be acquired, because there will not be quinolone resistance genes in nature. Contrary to this prediction, a variety of elements ranging from efflux pumps, target-protecting proteins and even quinolone-modifying enzymes have been shown to contribute to quinolone resistance. The finding of some of these elements in plasmids indicates that quinolone resistance can be transferable. As a result, there has been a developing interest on the reservoirs for quinolone resistance genes and on the potential risks associated with the use of these antibiotics in non-clinical environments. As a matter of fact, plasmid-encoded, quinolone-resistance qnr genes originated in the chromosome of aquatic bacteria, thus the use of quinolones in fish farming might constitute a risk for the emergence of resistance. Failure to predict the development of quinolone resistance reinforces the need of taking into consideration the wide plasticity of biological systems for future predictions. This plasticity allows pathogens to deal with toxic compounds, including those with a synthetic origin as quinolones.
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spelling doaj.art-203812e209cf4dd39aa1a091366d52f02022-12-22T02:24:02ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2011-02-01210.3389/fmicb.2011.000228550Quinolone resistance: much more than predictedAlvaro eHernandez0Maria Blanca Sanchez1Jose L Martinez2Centro Nacional de Biotecnologia-CSIC and CIBERESPCentro Nacional de Biotecnologia-CSIC and CIBERESPCentro Nacional de Biotecnologia-CSIC and CIBERESPSince quinolones are synthetic antibiotics, it was predicted that mutations in target genes would be the only mechanism through which resistance could be acquired, because there will not be quinolone resistance genes in nature. Contrary to this prediction, a variety of elements ranging from efflux pumps, target-protecting proteins and even quinolone-modifying enzymes have been shown to contribute to quinolone resistance. The finding of some of these elements in plasmids indicates that quinolone resistance can be transferable. As a result, there has been a developing interest on the reservoirs for quinolone resistance genes and on the potential risks associated with the use of these antibiotics in non-clinical environments. As a matter of fact, plasmid-encoded, quinolone-resistance qnr genes originated in the chromosome of aquatic bacteria, thus the use of quinolones in fish farming might constitute a risk for the emergence of resistance. Failure to predict the development of quinolone resistance reinforces the need of taking into consideration the wide plasticity of biological systems for future predictions. This plasticity allows pathogens to deal with toxic compounds, including those with a synthetic origin as quinolones.http://journal.frontiersin.org/Journal/10.3389/fmicb.2011.00022/fullMDR efflux pumpPredicting antibiotic resistanceQnrQuinolone inactivationQuinolone resistanceTransfer of quinolone resistance
spellingShingle Alvaro eHernandez
Maria Blanca Sanchez
Jose L Martinez
Quinolone resistance: much more than predicted
Frontiers in Microbiology
MDR efflux pump
Predicting antibiotic resistance
Qnr
Quinolone inactivation
Quinolone resistance
Transfer of quinolone resistance
title Quinolone resistance: much more than predicted
title_full Quinolone resistance: much more than predicted
title_fullStr Quinolone resistance: much more than predicted
title_full_unstemmed Quinolone resistance: much more than predicted
title_short Quinolone resistance: much more than predicted
title_sort quinolone resistance much more than predicted
topic MDR efflux pump
Predicting antibiotic resistance
Qnr
Quinolone inactivation
Quinolone resistance
Transfer of quinolone resistance
url http://journal.frontiersin.org/Journal/10.3389/fmicb.2011.00022/full
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AT mariablancasanchez quinoloneresistancemuchmorethanpredicted
AT joselmartinez quinoloneresistancemuchmorethanpredicted