Exploration of the novel fluoroquinolones with high inhibitory effect against quinolone-resistant DNA gyrase of Salmonella Typhimurium

Microbiol Spectr. 2023 Dec 12;11(6):e0133023. doi: 10.1128/spectrum.01330-23. Epub 2023 Oct 5.

Abstract

Quinolone-resistant nontyphoidal Salmonella is a pressing public health concern, demanding the exploration of novel treatments. In this study, we focused on two innovative synthetic fluoroquinolones, WQ-3034 and WQ-3154. Our findings revealed that these new compounds demonstrate potent inhibitory effects, even against mutant strains that cause resistance to existing quinolones. Hence, WQ-3034 and WQ-3154 could potentially be effective therapeutic agents against quinolone-resistant Salmonella Typhimurium. Furthermore, the data obtained in this study will be baseline information for antimicrobial drug development.

Keywords: DNA gyrase; Salmonella Typhimurium; fluoroquinolones.

MeSH terms

  • Anti-Bacterial Agents / pharmacology
  • DNA Gyrase / genetics
  • Drug Resistance, Bacterial / genetics
  • Fluoroquinolones / pharmacology
  • Microbial Sensitivity Tests
  • Quinolones* / pharmacology
  • Salmonella typhimurium / genetics

Substances

  • Quinolones
  • DNA Gyrase
  • Anti-Bacterial Agents
  • Fluoroquinolones