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Alterations In The Transciptome And Antibiotic Susceptibility Of Staphylococcus Aureus Grown In The Presence Of Diclofenac, James T. Riordan, Joanne M. Dupre, Stephanie A. Cantore-Matyi, Atul Kumar-Singh, Yang Song, Shahrear Zaman, Sonia Horan, Nada S. Helal, Vijayaraj Nagarajan, Mohamed O. Elasri, Brian J. Wilkinson, John E. Gustafson
Alterations In The Transciptome And Antibiotic Susceptibility Of Staphylococcus Aureus Grown In The Presence Of Diclofenac, James T. Riordan, Joanne M. Dupre, Stephanie A. Cantore-Matyi, Atul Kumar-Singh, Yang Song, Shahrear Zaman, Sonia Horan, Nada S. Helal, Vijayaraj Nagarajan, Mohamed O. Elasri, Brian J. Wilkinson, John E. Gustafson
Faculty Publications
Background
Diclofenac is a non-steroidal anti-inflammatory drug (NSAID) which has been shown to increase the susceptibility of various bacteria to antimicrobials and demonstrated to have broad antimicrobial activity. This study describes transcriptome alterations in S. aureus strain COL grown with diclofenac and characterizes the effects of this NSAID on antibiotic susceptibility in laboratory, clinical and diclofenac reduced-susceptibility (DcRS) S. aureus strains.
Methods
Transcriptional alterations in response to growth with diclofenac were measured using S. aureus gene expression microarrays and quantitative real-time PCR. Antimicrobial susceptibility was determined by agar diffusion MICs and gradient plate analysis. Ciprofloxacin accumulation was measured …