Dipeptidic Phosphonates: Potent Inhibitors of Pseudomonas aeruginosa Elastase B Showing Efficacy in a Murine Keratitis Model.

ABSTRACT: The ubiquitous opportunistic pathogen Pseudomonas aeruginosa is responsible for severe infections and notoriously known for acquiring antimicrobial resistance. Inhibiting the bacterium's extracellular elastase, LasB - a zinc-dependent protease - presents a promising strategy to mitigate its virulence. Within this medicinal chemistry-driven hit-to-lead optimization campaign, a new series of highly potent dipeptidic phosphonates is designed and synthesized following a structure-based drug-discovery approach. In vitro and in vivo evaluation reveal beneficial pharmacokinetic profiles, excellent selectivity over human off-targets and good tolerability in murine toxicity studies. Ultimately, the scaffold presented herein demonstrates promising in vivo efficacy in a murine Pseudomonas aeruginosa

SUBMITTER: Kiefer AF 

PROVIDER: S-EPMC11984924 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature