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Oxidative Stress Response in Pseudomonas aeruginosa

Department of Health Sciences, Carleton University, Ottawa, ON K1S 5B6, Canada
Institute of Functional Interfaces, Karlsruhe Institute of Technology, 76344 Karlsruhe, Germany
Author to whom correspondence should be addressed.
Academic Editors: Natalia Kirienko and Carolyn Cannon
Pathogens 2021, 10(9), 1187;
Received: 9 August 2021 / Revised: 6 September 2021 / Accepted: 8 September 2021 / Published: 14 September 2021
(This article belongs to the Special Issue Pseudomonas aeruginosa Pathogenesis)
Pseudomonas aeruginosa is a Gram-negative environmental and human opportunistic pathogen highly adapted to many different environmental conditions. It can cause a wide range of serious infections, including wounds, lungs, the urinary tract, and systemic infections. The high versatility and pathogenicity of this bacterium is attributed to its genomic complexity, the expression of several virulence factors, and its intrinsic resistance to various antimicrobials. However, to thrive and establish infection, P. aeruginosa must overcome several barriers. One of these barriers is the presence of oxidizing agents (e.g., hydrogen peroxide, superoxide, and hypochlorous acid) produced by the host immune system or that are commonly used as disinfectants in a variety of different environments including hospitals. These agents damage several cellular molecules and can cause cell death. Therefore, bacteria adapt to these harsh conditions by altering gene expression and eliciting several stress responses to survive under oxidative stress. Here, we used PubMed to evaluate the current knowledge on the oxidative stress responses adopted by P. aeruginosa. We will describe the genes that are often differently expressed under oxidative stress conditions, the pathways and proteins employed to sense and respond to oxidative stress, and how these changes in gene expression influence pathogenicity and the virulence of P. aeruginosa. Understanding these responses and changes in gene expression is critical to controlling bacterial pathogenicity and developing new therapeutic agents. View Full-Text
Keywords: Pseudomonas aeruginosa; oxidative stress; oxidative stress response; reactive oxygen species; reactive chlorine species; antimicrobial resistance; bacterial stress response Pseudomonas aeruginosa; oxidative stress; oxidative stress response; reactive oxygen species; reactive chlorine species; antimicrobial resistance; bacterial stress response
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MDPI and ACS Style

da Cruz Nizer, W.S.; Inkovskiy, V.; Versey, Z.; Strempel, N.; Cassol, E.; Overhage, J. Oxidative Stress Response in Pseudomonas aeruginosa. Pathogens 2021, 10, 1187.

AMA Style

da Cruz Nizer WS, Inkovskiy V, Versey Z, Strempel N, Cassol E, Overhage J. Oxidative Stress Response in Pseudomonas aeruginosa. Pathogens. 2021; 10(9):1187.

Chicago/Turabian Style

da Cruz Nizer, Waleska S., Vasily Inkovskiy, Zoya Versey, Nikola Strempel, Edana Cassol, and Joerg Overhage. 2021. "Oxidative Stress Response in Pseudomonas aeruginosa" Pathogens 10, no. 9: 1187.

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