A multiplexable assay for screening antibiotic lethality against drug-tolerant bacteria

Nat Methods. 2019 Apr;16(4):303-306. doi: 10.1038/s41592-019-0333-y. Epub 2019 Mar 11.

Abstract

Antibiotic screens typically rely on growth inhibition to characterize compound bioactivity-an approach that cannot be used to assess the bactericidal activity of antibiotics against bacteria in drug-tolerant states. To address this limitation, we developed a multiplexed assay that uses metabolism-sensitive staining to report on the killing of antibiotic-tolerant bacteria. This method can be used with diverse bacterial species and applied to genome-scale investigations to identify therapeutic targets against tolerant pathogens.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Anti-Bacterial Agents / pharmacology*
  • Bacteria / drug effects*
  • Ciprofloxacin / pharmacology
  • DNA Damage
  • Drug Resistance, Bacterial*
  • Escherichia coli / drug effects*
  • Escherichia coli / growth & development
  • Gene Deletion
  • In Situ Nick-End Labeling
  • Microbial Sensitivity Tests*
  • Microscopy, Fluorescence
  • Mutation
  • Phenotype
  • Species Specificity

Substances

  • Anti-Bacterial Agents
  • Ciprofloxacin