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Antibiotic Energy Drain Found to Accelerate Bacterial Resistance

A Nature Communications paper shows that ciprofloxacin-induced ATP depletion triggers reactive oxygen species to fuel persister cells, accelerating resistance development.

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Overview

  • Rutgers Health researchers demonstrated that ciprofloxacin depletes bacterial ATP and NADH, imposing severe bioenergetic stress.
  • Under this energy crisis, E. coli cells increase respiration rates, producing excess reactive oxygen species that drive persister cell formation.
  • Reactive oxygen–induced DNA damage and error-prone repair mechanisms enable stressed bacteria to reach high-level antibiotic resistance faster.
  • Preliminary tests indicate that gentamicin and ampicillin also trigger similar metabolic stress responses in bacteria.
  • The team recommends screening antibiotics for metabolic side effects, pairing drugs with stress-response inhibitors or ROS scavengers, and revising dosing strategies to limit resistance acceleration.