Collateral sensitivity profiling in drug-resistant Escherichia coli identifies natural products suppressing cephalosporin resistance

Dennis Y. Liu, Laura Phillips, Darryl M. Wilson, Kelly M. Fulton, Susan M. Twine, Alex Wong and Roger G. Linington ()
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Dennis Y. Liu: Simon Fraser University
Laura Phillips: Carleton University
Darryl M. Wilson: Simon Fraser University
Kelly M. Fulton: National Research Council Canada
Susan M. Twine: Carleton University
Alex Wong: Carleton University
Roger G. Linington: Simon Fraser University

Nature Communications, 2023, vol. 14, issue 1, 1-14

Abstract: Abstract The rapid emergence of antimicrobial resistance presents serious health challenges to the management of infectious diseases, a problem that is further exacerbated by slowing rates of antimicrobial drug discovery in recent years. The phenomenon of collateral sensitivity (CS), whereby resistance to one drug is accompanied by increased sensitivity to another, provides new opportunities to address both these challenges. Here, we present a high-throughput screening platform termed Collateral Sensitivity Profiling (CSP) to map the difference in bioactivity of large chemical libraries across 29 drug-resistant strains of E. coli. CSP screening of 80 commercial antimicrobials demonstrated multiple CS interactions. Further screening of a 6195-member natural product library revealed extensive CS relationships in nature. In particular, we report the isolation of known and new analogues of borrelidin A with potent CS activities against cephalosporin-resistant strains. Co-dosing ceftazidime with borrelidin A slows broader cephalosporin resistance with no recognizable resistance to borrelidin A itself.

Date: 2023
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DOI: 10.1038/s41467-023-37624-4

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