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2015 ; 11
(3
): 182-8
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Collective antibiotic tolerance: mechanisms, dynamics and intervention
#MMPMID25689336
Meredith HR
; Srimani JK
; Lee AJ
; Lopatkin AJ
; You L
Nat Chem Biol
2015[Mar]; 11
(3
): 182-8
PMID25689336
show ga
Bacteria have developed resistance against every antibiotic at a rate that is
alarming considering the timescale at which new antibiotics are developed. Thus,
there is a critical need to use antibiotics more effectively, extend the shelf
life of existing antibiotics and minimize their side effects. This requires
understanding the mechanisms underlying bacterial drug responses. Past studies
have focused on survival in the presence of antibiotics by individual cells, as
genetic mutants or persisters. Also important, however, is the fact that a
population of bacterial cells can collectively survive antibiotic treatments
lethal to individual cells. This tolerance can arise by diverse mechanisms,
including resistance-conferring enzyme production, titration-mediated bistable
growth inhibition, swarming and interpopulation interactions. These strategies
can enable rapid population recovery after antibiotic treatment and provide a
time window during which otherwise susceptible bacteria can acquire inheritable
genetic resistance. Here, we emphasize the potential for targeting collective
antibiotic tolerance behaviors as an antibacterial treatment strategy.
|Animals
[MESH]
|Anti-Bacterial Agents/*pharmacology/therapeutic use
[MESH]