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Updated: Apr 30, 2026

Production and Testing of Antimicrobial Peptides and Their Mimics
Published on: April 10, 2026
New Ianthelliformisamine derivatives as antibiotic enhancers against resistant Gram-negative bacteria
Cyril Pieri1, Diane Borselli, Carole Di Giorgio
1Centre de Recherche en Cancérologie de Marseille (CRCM), CNRS, UMR7258, Institut Paoli Calmettes, Aix-Marseille Université , UM 105, Inserm, U1068, F-13009 Marseille, France.
Abstract:
A series consisting of ianthelliformisamimes A, B, and C as well as its synthetic analogues was prepared in high chemical yield, from 27 to 91%, using peptide coupling as the key step, and the compounds were evaluated for their in vitro antibiotic enhancer properties against resistant Gram-negative bacteria and clinical isolates. The mechanism of action of one of these derivatives against Pseudomonas aeruginosa when combined with doxycycline was precisely evaluated utilizing bioluminescence to measure ATP efflux and fluorescence to evaluate membrane depolarization.
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