Antimicrobial combinations against Helicobacter pylori including benzoxadiazol-based flavodoxin inhibitors: in vitro characterization

Microbiol Spectr. 2024 Jan 11;12(1):e0262323. doi: 10.1128/spectrum.02623-23. Epub 2023 Dec 12.

Abstract

The antimicrobial resistance of Helicobacter pylori (Hp) currently poses a threat to available treatment regimens. Developing antimicrobial drugs targeting new bacterial targets is crucial, and one such class of drugs includes Hp-flavodoxin (Hp-fld) inhibitors that target an essential metabolic pathway in Hp. Our study demonstrated that combining these new drugs with conventional antibiotics used for Hp infection treatment prevented the regrowth observed with drugs used alone. Hp-fld inhibitors show promise as new drugs to be incorporated into the treatment of Hp infection, potentially reducing the development of resistance and shortening the treatment duration.

Keywords: Helicobacter pylori; checkerboard; drug combination; drug interactions; time-kill studies.

MeSH terms

  • Anti-Bacterial Agents / pharmacology
  • Anti-Bacterial Agents / therapeutic use
  • Anti-Infective Agents* / pharmacology
  • Flavodoxin / metabolism
  • Helicobacter Infections* / drug therapy
  • Helicobacter Infections* / microbiology
  • Helicobacter pylori* / metabolism
  • Humans

Substances

  • Flavodoxin
  • Anti-Infective Agents
  • Anti-Bacterial Agents