Drugging evolution of antibiotic resistance at a regulatory network hub.

Drugging evolution of antibiotic resistance at a regulatory network hub.
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DOI:
10.1126/sciadv.adg0188
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发表时间:
2023-06-23
期刊:
影响因子:
13.6
通讯作者:
Rosenberg, Susan M.
Rosenberg, Susan M.
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Zhai, Yin;Pribis, John P.;Dooling, Sean W.;Garcia-Villada, Libertad;Minnick, P. J.;Xia, Jun;Liu, Jingjing;Mei, Qian;Fitzgerald, Devon M.;Herman, Christophe;Hastings, P. J.;Costa-Mattioli, Mauro;Rosenberg, Susan M.

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Evolution of antibiotic resistance is a world health crisis, fueled by new mutations. Drugs to slow mutagenesis could, as cotherapies, prolong the shelf-life of antibiotics, yet evolution-slowing drugs and drug targets have been underexplored and ineffective. Here, we used a network-based strategy to identify drugs that block hubs of fluoroquinolone antibiotic-induced mutagenesis. We identify a U.S. Food and Drug Administration– and European Medicines Agency–approved drug, dequalinium chloride (DEQ), that inhibits activation of the Escherichia coli general stress response, which promotes ciprofloxacin-induced (stress-induced) mutagenic DNA break repair. We uncover the step in the pathway inhibited: activation of the upstream “stringent” starvation stress response, and find that DEQ slows evolution without favoring proliferation of DEQ-resistant mutants. Furthermore, we demonstrate stress-induced mutagenesis during mouse infections and its inhibition by DEQ. Our work provides a proof-of-concept strategy for drugs to slow evolution in bacteria and generally. Mutagenesis-decelerating drug targets stress responses that trigger antibiotic-induced mutations to antibiotic (cross)resistance.
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