Pseudomonas aeruginosa is an opportunistic pathogen that poses a significant threat to individuals suffering from cystic fibrosis (CF). The pathogen is highly prevalent in CF individuals and is responsible for chronic infection, resulting in severe tissue damage and poor patient outcome. Prolonged antibiotic administration has led to the emergence of multidrug resistance in P. aeruginosa. In this direction, antivirulence strategies achieving targeted inhibition of bacterial virulence pathways, including quorum sensing, efflux pumps, lectins, and iron chelators, have been explored against CF isolates of P. aeruginosa. Hence, this review article presents a bird's eye view on the pulmonary infections involving P. aeruginosa in CF patients by laying emphasis on factors contributing to bacterial colonization, persistence, and disease progression along with the current line of therapeutics against P. aeruginosa in CF. We further collate scientific literature and discusses various antivirulence strategies that have been tested against P. aeruginosa isolates from CF patients.
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http://dx.doi.org/10.1016/j.micpath.2024.106730 | DOI Listing |
World J Microbiol Biotechnol
January 2025
Food Research Center (FoRC), Laboratory of Food Microbiology, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo (USP), São Paulo, SP, Brazil.
Bacteria coordinate gene expression in a cell density-dependent manner in a communication process called quorum sensing (QS). The expression of virulence factors, biofilm formation and enzyme production are QS-regulated phenotypes that can interfere in human health. Due to this importance, there is great interest in inhibiting QS, comprising an anti-virulence strategy.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Food Science and Engineering, Jilin University, Changchun 130062, PR China. Electronic address:
Traditional wound dressings, primarily centered on antimicrobial or bactericidal strategies, have inadvertently contributed to the rise of drug-resistant bacterial colonies at wound sites, thus prolonging the healing process. In this study, we developed an innovative hydrogel dressing, CMCS-PVA@CA, incorporating carboxymethyl chitosan (CMCS), polyvinyl alcohol (PVA), and cichoric acid (CA), specifically designed to treat skin wounds infected with methicillin-resistant Staphylococcus aureus (MRSA). Computational biology analyses reveal that CA exerts substantial anti-virulence activity by targeting serine/threonine phosphatase (Stp1), achieving an IC of 3.
View Article and Find Full Text PDFWorld J Microbiol Biotechnol
January 2025
Clinical Medical College, Changchun University of Chinese Medicine, Changchun, China.
In addressing the formidable challenge posed by methicillin-resistant Staphylococcus aureus (MRSA), this investigation elucidates a novel therapeutic paradigm by specifically targeting the virulence factor sortase A (SrtA) utilizing Tubuloside A (TnA). SrtA plays a critical role in the pathogenicity of MRSA, primarily by anchoring surface proteins to the bacterial cell wall, which is crucial for the bacterium's ability to colonize and infect host tissues. By inhibiting SrtA, TnA offers a novel and distinct strategy compared to traditional antibiotics.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America.
Salmonella enterica is a common foodborne pathogen that causes intestinal illness varying from mild gastroenteritis to life-threatening systemic infections. The frequency of outbreaks due to multidrug-resistant Salmonella has been increased in the past few years with increasing numbers of annual deaths. Therefore, new strategies to control the spread of antimicrobial resistance are required.
View Article and Find Full Text PDFMicrobiol Res
December 2024
College of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun 130117, China. Electronic address:
A medical predicament has led to extensive drug resistance in methicillin-resistant Staphylococcus aureus (MRSA), and the complexity of treatment has increased exponentially with the induction of osteomyelitis. In view of the severe situation and the potential of bacterial antivirulence strategies, this study focused on the key virulence factor caseinolytic protease (ClpP) of S. aureus to identify new strategies against MRSA-induced osteomyelitis.
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