Rapid emergence of resistance to linezolid and mutator phenotypes in Staphylococcus aureus isolates from an adult cystic fibrosis patient

Antimicrob Agents Chemother. 2013 Oct;57(10):5186-8. doi: 10.1128/AAC.01392-13. Epub 2013 Aug 5.

Abstract

Linezolid has emerged as an important therapeutic option for the treatment of Staphylococcus aureus in patients with cystic fibrosis. We report the rapid emergence, upon treatment with linezolid, of linezolid-resistant S. aureus clinical isolates through the accumulation of resistance-associated 23S rRNA mutations, together with acquisition of an altered mutator phenotype.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetamides
  • Adult
  • Anti-Bacterial Agents / pharmacology*
  • Anti-Bacterial Agents / therapeutic use
  • Cystic Fibrosis / drug therapy
  • Cystic Fibrosis / genetics
  • Cystic Fibrosis / microbiology*
  • Humans
  • Linezolid
  • Oxazolidinones
  • RNA, Ribosomal, 23S / genetics
  • Staphylococcus aureus / drug effects*
  • Staphylococcus aureus / genetics
  • Staphylococcus aureus / pathogenicity

Substances

  • Acetamides
  • Anti-Bacterial Agents
  • Oxazolidinones
  • RNA, Ribosomal, 23S
  • Linezolid