Antibiotics are used in many sectors, including the dairy industry, to prevent bacterial infections in humans, animals, and plants. When bacterial cells are exposed to stressors, such as antibiotic exposure, a subpopulation of the cells becomes dormant. This helps the pathogen to revive and reconstitute its pathogenicity. Thus, eradicating the dormant cells may be an effective strategy to reduce the development of antibiotic resistance in bacteria caused by the abuse of antibiotics. In recent years, a large number of indole-related compounds have been reported to eradicate persister cells. In this review, we provide a summary of the mechanisms of persister cell formation and resuscitation, and the ability of indole and substituted indoles to eradicate persister cells.
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