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CpxA/R‐Controlled Nitroreductase Expression as Target for Combinatorial Therapy against Uropathogens by Promoting Reactive Oxygen Species Generation

The antibiotic resistances emerged in uropathogens lead to accumulative treatment failure and recurrent episodes of urinary tract infection (UTI), necessitating more innovative therapeutics to curb UTI before systematic infection. In the current study, the combination of amikacin and nitrofurantoin...

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Autores principales: Ren, Hao, Zhong, Zixing, Zhou, Shuang, Wei, Yiyang, Liang, Yujiao, He, Huiling, Zheng, Zijian, Li, Mengyuan, He, Qian, Long, Tengfei, Lian, Xinlei, Liao, Xiaoping, Liu, Yahong, Sun, Jian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10477892/
https://www.ncbi.nlm.nih.gov/pubmed/37407509
http://dx.doi.org/10.1002/advs.202300938
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author Ren, Hao
Zhong, Zixing
Zhou, Shuang
Wei, Yiyang
Liang, Yujiao
He, Huiling
Zheng, Zijian
Li, Mengyuan
He, Qian
Long, Tengfei
Lian, Xinlei
Liao, Xiaoping
Liu, Yahong
Sun, Jian
author_facet Ren, Hao
Zhong, Zixing
Zhou, Shuang
Wei, Yiyang
Liang, Yujiao
He, Huiling
Zheng, Zijian
Li, Mengyuan
He, Qian
Long, Tengfei
Lian, Xinlei
Liao, Xiaoping
Liu, Yahong
Sun, Jian
author_sort Ren, Hao
collection PubMed
description The antibiotic resistances emerged in uropathogens lead to accumulative treatment failure and recurrent episodes of urinary tract infection (UTI), necessitating more innovative therapeutics to curb UTI before systematic infection. In the current study, the combination of amikacin and nitrofurantoin is found to synergistically eradicate Gram‐negative uropathogens in vitro and in vivo. The mechanistic analysis demonstrates that the amikacin, as an aminoglycoside, induced bacterial envelope stress by introducing mistranslated proteins, thereby constitutively activating the cpxA/R two‐component system (Cpx signaling). The activation of Cpx signaling stimulates the expression of bacterial major nitroreductases (nfsA/nfsB) through soxS/marA regulons. As a result, the CpxA/R‐dependent nitroreductases overexpression generates considerable quantity of lethal reactive intermediates via nitroreduction and promotes the prodrug activation of nitrofurantoin. As such, these actions together disrupt the bacterial cellular redox balance with excessively‐produced reactive oxygen species (ROS) as “Domino effect”, accelerating the clearance of uropathogens. Although aminoglycosides are used as proof‐of‐principle to elucidate the mechanism, the synergy between nitrofurantoin is generally applicable to other Cpx stimuli. To summarize, this study highlights the potential of aminoglycoside‐nitrofurantoin combination to replenish the arsenal against recurrent Gram‐negative uropathogens and shed light on the Cpx signaling‐controlled nitroreductase as a potential target to manipulate the antibiotic susceptibility.
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spelling pubmed-104778922023-09-06 CpxA/R‐Controlled Nitroreductase Expression as Target for Combinatorial Therapy against Uropathogens by Promoting Reactive Oxygen Species Generation Ren, Hao Zhong, Zixing Zhou, Shuang Wei, Yiyang Liang, Yujiao He, Huiling Zheng, Zijian Li, Mengyuan He, Qian Long, Tengfei Lian, Xinlei Liao, Xiaoping Liu, Yahong Sun, Jian Adv Sci (Weinh) Research Articles The antibiotic resistances emerged in uropathogens lead to accumulative treatment failure and recurrent episodes of urinary tract infection (UTI), necessitating more innovative therapeutics to curb UTI before systematic infection. In the current study, the combination of amikacin and nitrofurantoin is found to synergistically eradicate Gram‐negative uropathogens in vitro and in vivo. The mechanistic analysis demonstrates that the amikacin, as an aminoglycoside, induced bacterial envelope stress by introducing mistranslated proteins, thereby constitutively activating the cpxA/R two‐component system (Cpx signaling). The activation of Cpx signaling stimulates the expression of bacterial major nitroreductases (nfsA/nfsB) through soxS/marA regulons. As a result, the CpxA/R‐dependent nitroreductases overexpression generates considerable quantity of lethal reactive intermediates via nitroreduction and promotes the prodrug activation of nitrofurantoin. As such, these actions together disrupt the bacterial cellular redox balance with excessively‐produced reactive oxygen species (ROS) as “Domino effect”, accelerating the clearance of uropathogens. Although aminoglycosides are used as proof‐of‐principle to elucidate the mechanism, the synergy between nitrofurantoin is generally applicable to other Cpx stimuli. To summarize, this study highlights the potential of aminoglycoside‐nitrofurantoin combination to replenish the arsenal against recurrent Gram‐negative uropathogens and shed light on the Cpx signaling‐controlled nitroreductase as a potential target to manipulate the antibiotic susceptibility. John Wiley and Sons Inc. 2023-07-05 /pmc/articles/PMC10477892/ /pubmed/37407509 http://dx.doi.org/10.1002/advs.202300938 Text en © 2023 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Ren, Hao
Zhong, Zixing
Zhou, Shuang
Wei, Yiyang
Liang, Yujiao
He, Huiling
Zheng, Zijian
Li, Mengyuan
He, Qian
Long, Tengfei
Lian, Xinlei
Liao, Xiaoping
Liu, Yahong
Sun, Jian
CpxA/R‐Controlled Nitroreductase Expression as Target for Combinatorial Therapy against Uropathogens by Promoting Reactive Oxygen Species Generation
title CpxA/R‐Controlled Nitroreductase Expression as Target for Combinatorial Therapy against Uropathogens by Promoting Reactive Oxygen Species Generation
title_full CpxA/R‐Controlled Nitroreductase Expression as Target for Combinatorial Therapy against Uropathogens by Promoting Reactive Oxygen Species Generation
title_fullStr CpxA/R‐Controlled Nitroreductase Expression as Target for Combinatorial Therapy against Uropathogens by Promoting Reactive Oxygen Species Generation
title_full_unstemmed CpxA/R‐Controlled Nitroreductase Expression as Target for Combinatorial Therapy against Uropathogens by Promoting Reactive Oxygen Species Generation
title_short CpxA/R‐Controlled Nitroreductase Expression as Target for Combinatorial Therapy against Uropathogens by Promoting Reactive Oxygen Species Generation
title_sort cpxa/r‐controlled nitroreductase expression as target for combinatorial therapy against uropathogens by promoting reactive oxygen species generation
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10477892/
https://www.ncbi.nlm.nih.gov/pubmed/37407509
http://dx.doi.org/10.1002/advs.202300938
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