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Bacterial persistence promotes the evolution of antibiotic resistance by increasing survival and mutation rates.


ABSTRACT: Persisters are transiently antibiotic-tolerant cells that complicate the treatment of bacterial infections. Both theory and experiments have suggested that persisters facilitate genetic resistance by constituting an evolutionary reservoir of viable cells. Here, we provide evidence for a strong positive correlation between persistence and the likelihood to become genetically resistant in natural and lab strains of E. coli. This correlation can be partly attributed to the increased availability of viable cells associated with persistence. However, our data additionally show that persistence is pleiotropically linked with mutation rates. Our theoretical model further demonstrates that increased survival and mutation rates jointly affect the likelihood of evolving clinical resistance. Overall, these results suggest that the battle against antibiotic resistance will benefit from incorporating anti-persister therapies.

SUBMITTER: Windels EM 

PROVIDER: S-EPMC6474225 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Bacterial persistence promotes the evolution of antibiotic resistance by increasing survival and mutation rates.

Windels Etthel Martha EM   Michiels Joran Elie JE   Fauvart Maarten M   Wenseleers Tom T   Van den Bergh Bram B   Michiels Jan J  

The ISME journal 20190115 5


Persisters are transiently antibiotic-tolerant cells that complicate the treatment of bacterial infections. Both theory and experiments have suggested that persisters facilitate genetic resistance by constituting an evolutionary reservoir of viable cells. Here, we provide evidence for a strong positive correlation between persistence and the likelihood to become genetically resistant in natural and lab strains of E. coli. This correlation can be partly attributed to the increased availability of  ...[more]

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