Intrinsic Antimicrobial Resistance Determinants in the Superbug Pseudomonas aeruginosa.

ABSTRACT:

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Antimicrobial-resistant bacteria pose a serious threat in the clinic. This is particularly true for opportunistic pathogens that possess high intrinsic resistance. Though many studies have focused on understanding the acquisition of bacterial resistance upon exposure to antimicrobials, the mechanisms controlling intrinsic resistance are not well understood. In this study, we subjected the model opportunistic superbug Pseudomonas aeruginosa to 14 antimicrobials under highly controlled conditions and assessed its response using expression- and fitness-based genomic approaches. Our results reveal that gene expression changes and mutant fitness in response to sub-MIC antimicrobials do not correlate on a genomewide scale, indicating that gene expression is not a good predicto

SUBMITTER: Murray JL 

PROVIDER: S-EPMC4626858 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature