is an important zoonotic pathogen. It mainly uses quorum sensing (QS) to adapt to complex and changeable environments. QS is a universal cell-to-cell communication system that has been widely studied for its physiological functions, including the regulation of bacterial adhesion, virulence, and biofilm formation. Quorum sensing inhibitors (QSIs) are highly effective at interfering with the QS system and bacteria have trouble developing resistance to them. We review the current research status of the LuxS/AI-2 QS system and QSIs. Studies showed that by inhibiting the formation of AI-2, targeting the LuxS protein, inhibiting the expression of gene can control the LuxS/AI-2 QS system of . Other potential QSIs targets are summarized, which may be preventing and treating infections, including AI-2 production, transmission, LuxS protein, blockage of AI-2 binding to receptors, AI-2-mediated QS. Since antibiotics are becoming increasingly ineffective due to the emergence of resistant bacteria, including , it is thus critical to find new antibacterial drugs with different mechanisms of action. QSIs provide hope for the development of such drugs.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9782415 | PMC |
http://dx.doi.org/10.3390/life12122006 | DOI Listing |
J Appl Microbiol
January 2025
G.B. Elyakov Pacific Institute of Bioorganic Chemistry FEB RAS; 690022 Vladivostok, Russia.
Aims: The aim of this study was to evaluate the antioxidant and anti-inflammatory effects of marine fungal cerebroside flavuside B (FlaB) on Staphylococcus aureus-infected keratinocytes in in vitro skin wounds and to identify FlaB targets in bacterial and human cells.
Methods And Results: A combination of ELISA, plate spectrofluorimetry, and flow cytometry with fluorescence dye staining, scratch assay, and real-time cell imaging techniques was used to investigate the effects of FlaB on S. aureus-infected HaCaT keratinocytes.
Drug Des Devel Ther
January 2025
Department of Infectious Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People's Republic of China.
In recent years, the incidence of fungal infections has been rising annually, especially among immunocompromised populations, posing a significant challenge to public health. Although antifungal medications provide some relief, the escalating problem of resistance sharply curtails their effectiveness, presenting an urgent clinical dilemma that demands immediate attention. Research has shown that fungal resistance is closely related to quorum sensing (QS), and QS inhibitors (QSIs) are considered an effective solution to this issue.
View Article and Find Full Text PDFJ Virol
December 2024
College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, Beijing, China.
mSystems
December 2024
River Ecosystems Laboratory, Alpine and Polar Environmental Research Center, Ecole Polytechnique Fédérale de Lausanne (EPFL), Sion, Switzerland.
Unlabelled: Glacier-fed streams are permanently cold, ultra-oligotrophic, and physically unstable environments, yet microbial life thrives in benthic biofilm communities. Within biofilms, microorganisms rely on secondary metabolites for communication and competition. However, the diversity and genetic potential of secondary metabolites in glacier-fed stream biofilms remain poorly understood.
View Article and Find Full Text PDFNat Prod Res
January 2025
Vocational School of Health Services, Suleyman Demirel University, Isparta, Turkey.
The study aims to evaluate the Quorum Sensing (QS) system inhibition against some Gram-positive and Gram-negative bacteria detected by molecular modeling of R. cathartica L. plant extract.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!