title: Activity of and resistance to moxifloxacin in Staphylococcus aureus.
abstract: Moxifloxacin has enhanced potency against Staphylococcus aureus, lower propensity to select for resistant mutants, and higher bactericidal activity against highly resistant strains than ciprofloxacin. Despite similar activity against purified S. aureus topoisomerase IV and DNA gyrase, it selects for topoisomerase IV mutants, making topoisomerase IV the preferred target in vivo.
authors.affiliation: Division of Infectious Diseases and Medical Services, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114-2696, USA.
authors.forename: Dilek
authors.initials: D
authors.lastname: Ince
authors.forename: Xiamei
authors.initials: X
authors.lastname: Zhang
authors.forename: David C
authors.initials: DC
authors.lastname: Hooper
mesh_terms: D000890:Anti-Infective Agents / Q000494:pharmacology*; D001372:Aza Compounds; D002939:Ciprofloxacin / Q000494:pharmacology; D027081:DNA Gyrase / Q000235:genetics; D027101:DNA Topoisomerase IV / Q000037:antagonists & inhibitors / Q000235:genetics; D024881:Drug Resistance, Bacterial; D024841:Fluoroquinolones; D000077266:Moxifloxacin; D009154:Mutation; D011804:Quinolines; D013211:Staphylococcus aureus / Q000187:drug effects* / Q000235:genetics; D059005:Topoisomerase II Inhibitors
chemical_list: D000890:Anti-Infective Agents; D001372:Aza Compounds; D024841:Fluoroquinolones; D011804:Quinolines; D059005:Topoisomerase II Inhibitors; D002939:Ciprofloxacin; D027101:DNA Topoisomerase IV; D027081:DNA Gyrase; D000077266:Moxifloxacin