Polymyxin resistance mediated by mcr-1 gene threatens the last-resort antibiotics. Linear lipopeptide paenipeptin analogues 1 and 15 disrupted the outer membrane of Gram-negative pathogens and potentiated clarithromycin and rifampicin against mcr-1 positive Escherichia coli from the FDA-CDC Antimicrobial Resistance Isolate Bank. In the presence of paenipeptin, clarithromycin and rifampicin resulted in over 3 log reduction of E. coli in vitro Moreover, paenipeptin-antibiotic combinations significantly reduced E. coli in a murine thigh infection model.,Copyright © 2020 American Society for Microbiology.
Polymyxin resistance mediated by mcr-1 gene threatens the last-resort antibiotics. Linear lipopeptide paenipeptin analogues 1 and 15 disrupted the outer membrane of Gram-negative pathogens and potentiated clarithromycin and rifampicin against mcr-1 positive Escherichia coli from the FDA-CDC Antimicrobial Resistance Isolate Bank. In the presence of paenipeptin, clarithromycin and rifampicin resulted in over 3 log reduction of E. coli in vitro Moreover, paenipeptin-antibiotic combinations significantly reduced E. coli in a murine thigh infection model.,Copyright © 2020 American Society for Microbiology.