Abstract:
:Bacteria can survive antibiotic treatment without acquiring heritable antibiotic resistance. We investigated persistence to the fluoroquinolone ciprofloxacin in Escherichia coli. Our data show that a majority of persisters to ciprofloxacin were formed upon exposure to the antibiotic, in a manner dependent on the SOS gene network. These findings reveal an active and inducible mechanism of persister formation mediated by the SOS response, challenging the prevailing view that persisters are pre-existing and formed purely by stochastic means. SOS-induced persistence is a novel mechanism by which cells can counteract DNA damage and promote survival to fluoroquinolones. This unique survival mechanism may be an important factor influencing the outcome of antibiotic therapy in vivo.
journal_name
PLoS Genetjournal_title
PLoS geneticsauthors
Dörr T,Lewis K,Vulić Mdoi
10.1371/journal.pgen.1000760subject
Has Abstractpub_date
2009-12-01 00:00:00pages
e1000760issue
12eissn
1553-7390issn
1553-7404journal_volume
5pub_type
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