Adaptation of mycoplasmas to antimicrobial agents: Acholeplasma laidlawii extracellular vesicles mediate the export of ciprofloxacin and a mutant gene related to the antibiotic target

ScientificWorldJournal. 2014 Jan 29:2014:150615. doi: 10.1155/2014/150615. eCollection 2014.

Abstract

This study demonstrated that extracellular membrane vesicles are involved with the development of resistance to fluoroquinolones by mycoplasmas (class Mollicutes). This study assessed the differences in susceptibility to ciprofloxacin among strains of Acholeplasma laidlawii PG8. The mechanisms of mycoplasma resistance to antibiotics may be associated with a mutation in a gene related to the target of quinolones, which could modulate the vesiculation level. A. laidlawii extracellular vesicles mediated the export of the nucleotide sequences of the antibiotic target gene as well as the traffic of ciprofloxacin. These results may facilitate the development of effective approaches to control mycoplasma infections, as well as the contamination of cell cultures and vaccine preparations.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acholeplasma laidlawii / drug effects*
  • Acholeplasma laidlawii / genetics
  • Acholeplasma laidlawii / physiology
  • Adaptation, Physiological*
  • Amino Acid Sequence
  • Anti-Bacterial Agents / pharmacokinetics
  • Anti-Bacterial Agents / pharmacology*
  • Base Sequence
  • Biological Transport
  • Ciprofloxacin / pharmacokinetics
  • Ciprofloxacin / pharmacology*
  • DNA Topoisomerase IV / chemistry
  • DNA Topoisomerase IV / genetics
  • DNA, Bacterial
  • Genes, Bacterial*
  • Microbial Sensitivity Tests
  • Microscopy, Atomic Force
  • Microscopy, Electron, Transmission
  • Molecular Sequence Data
  • Mutation*
  • Sequence Homology, Amino Acid
  • Sequence Homology, Nucleic Acid

Substances

  • Anti-Bacterial Agents
  • DNA, Bacterial
  • Ciprofloxacin
  • DNA Topoisomerase IV