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Bacterial adaptation to antibiotics through regulatory RNAs

Abstract : The extensive use of antibiotics has resulted in a situation where multidrug-resistant pathogens have become a severe menace to human health worldwide. A deeper understanding of the principles used by pathogens to adapt to, respond to, and resist antibiotics would pave the road to the discovery of drugs with novel mechanisms. For bacteria, antibiotics represent clinically relevant stresses that induce protective responses. The recent implication of regulatory RNAs (small RNAs [sRNAs]) in antibiotic response and resistance in several bacterial pathogens suggests that they should be considered innovative drug targets. This minireview discusses sRNA-mediated mechanisms exploited by bacterial pathogens to fight against antibiotics. A critical discussion of the newest findings in the field is provided, with emphasis on the implication of sRNAs in major mechanisms leading to antibiotic resistance, including drug uptake, active drug efflux, drug target modifications, biofilms, cell walls, and lipopolysaccharide (LPS) biosynthesis. Of interest is the lack of knowledge about sRNAs implicated in Gram-positive compared to Gram-negative bacterial resistance.
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Submitted on : Thursday, August 23, 2018 - 4:11:02 PM
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Brice Felden, Vincent Cattoir. Bacterial adaptation to antibiotics through regulatory RNAs. Antimicrobial Agents and Chemotherapy, American Society for Microbiology, 2018, 62 (5), pp.e02503-17. ⟨10.1128/AAC.02503-17⟩. ⟨hal-01764887⟩

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