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Title: | The neglected intrinsic resistome of bacterial pathogens |
Authors: | Fajardo, A.; Martínez-Martín, Nadia CSIC; Mercadillo, María; Galán, Juan Carlos; Ghysels, Bart; Matthijs, Sandra; Cornelis, Pierre; Wiehlmann, Lutz; Tümmler, Burkhard; Baquero, Fernando; Martínez, José L. | Keywords: | Antibiotic resistance genes Bacterial pathogens Mutation-driven acquisition Pseudomonas aeruginosa Antibiotic susceptibility Resistance prediction |
Issue Date: | 20-Feb-2008 | Publisher: | Public Library of Science | Citation: | PLoS ONE 3(2): e1619 (2008) | Abstract: | Bacteria with intrinsic resistance to antibiotics are a worrisome health problem. It is widely believed that intrinsic antibiotic resistance of bacterial pathogens is mainly the consequence of cellular impermeability and activity of efflux pumps. However, the analysis of transposon-tagged Pseudomonas aeruginosa mutants presented in this article shows that this phenotype emerges from the action of numerous proteins from all functional categories. Mutations in some genes make P. aeruginosa more susceptible to antibiotics and thereby represent new targets. Mutations in other genes make P. aeruginosa more resistant and therefore define novel mechanisms for mutation-driven acquisition of antibiotic resistance, opening a new research field based in the prediction of resistance before it emerges in clinical environments. Antibiotics are not just weapons against bacterial competitors, but also natural signalling molecules. Our results demonstrate that antibiotic resistance genes are not merely protective shields and offer a more comprehensive view of the role of antibiotic resistance genes in the clinic and in nature. | Description: | 6 pages, 2 figures, 2 tables.-- PMID: 18286176 [PubMed].-- PMCID: PMC2238818. Supporting information (Suppl. table S1) available at: http://www.plosone.org/article/fetchSingleRepresentation.action?uri=info:doi/10.1371/journal.pone.0001619.s001 |
Publisher version (URL): | http://dx.doi.org/10.1371/journal.pone.0001619 | URI: | http://hdl.handle.net/10261/11903 | DOI: | 10.1371/journal.pone.0001619 | ISSN: | 1932-6203 |
Appears in Collections: | (CNB) Artículos |
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