An important role of a "probable ATP-binding component of ABC transporter" during the process of Pseudomonas aeruginosa resistance to fluoroquinolone
Abstract
In order to find new drug target to eliminate the fluoroquinolone resistance, the in vitro progress of Pseudomonas aeruginosa fluoroquinolone resistance was mimicked, and then proteomic analysis was applied to comparing different protein profiles during the resistant process. The results show that the expression of a "probable ATP-binding component of ATP binding cassette (ABC) transporter" existed in ciprofloxacin-intermediate and -resistant strains, but not in sensitive strain. In addition, the ciprofloxacin concentrations in P. aeruginosa strains, which were obtained from the progress of P. aeruginosa fluoroquinolone resistance, were determined by means of HPLC; the results show that the decrease of the intracellular concentration of drug and the expression of this new protein nearly take place simultaneously. The changes of mRNA levels of the probable ATP-binding component of ABC transporter were detected by virtue of RT-PCR and showed that this protein did not express in the sensitive strains but expressed increasingly in the intermediate and resistant strains. In order to determine the relationships between the development of antibiotic resistance and this protein further, a DNAzyme was designed to aim at the mRNA of the ...Continue Reading
References
Characteristics of Pseudomonas aeruginosa in relation to laboratory-induced resistance to gentamicin
A new subfamily of bacterial ABC-type transport systems catalyzing export of drugs and carbohydrates
Citations
Related Concepts
Related Feeds
ABC Transporters & Multidrug Resistance
ABC Transporters or ATP-Binding Cassette Transporters are responsible for pumping out antibiotics in the cell and can lead to multidrug resistance in bacteria. Discover the latest research on ABC Transporters & Multidrug Resistance here.
Antimicrobial Resistance (ASM)
Antimicrobial resistance poses a significant threat to the continued successful use of antimicrobial agents for the treatment of bacterial infections.
Antimicrobial Resistance
Antimicrobial resistance poses a significant threat to the continued successful use of antimicrobial agents for the treatment of bacterial infections.