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Quorum sensing (QS) refers to chemical signalling between micro-organisms and defines a social concord among them. Once a threshold of signal is accumulated, certain virulent traits are regulated within bacteria in response to the surrounding environment. These virulence traits are known to contribute in the pathogenicity of bacterial diseases. To prevent the activation of virulence factors, QS is inhibited in different ways through a strategy known as quorum quenching. Various types of quorum-quenching strategies have already been used and characterized, as discussed in this review. The phenomenon of quorum quenching has long been considered as an alternative therapy to circumvent the ill-effects of the overuse of antibiotics. Considering the need to compare and evaluate various strategies, selected quorum-quenching paradigms are detailed along with their pros and cons in this review. A rationale has been drawn between naturally evolved quorum-quenching strategies and synthetically modified approaches adopted to abrogate QS.
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http://dx.doi.org/10.1099/mic.0.000826 | DOI Listing |
J Mater Chem B
September 2025
State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangdong Basic Research Center of Excellence for Natural Bioactive Molecules and Discovery of Innovative Drugs, College of Pharmacy, Jinan University, Guangzhou 511436, China.
Globally, new antibiotic development lags behind the rapid evolution of antibiotic-resistant bacteria. Given the extensive research and development cycles, high costs, and risks associated with new pharmaceuticals, exploring alternatives to conventional antibiotics and enhancing their efficacy and safety is a promising strategy for addressing challenges in the post-antibiotic era. Previous studies have shown that antimicrobial peptides/peptidomimetics (AMPs) primarily use a membrane-disruption mechanism distinct from conventional antibiotics to exert bactericidal effects.
View Article and Find Full Text PDFMicrobiol Spectr
September 2025
Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China.
Unlabelled: Lactobacilli, recognized as beneficial bacteria within the human body, are celebrated for their multifaceted probiotic functions, including the regulation of intestinal flora, enhancement of body immunity, and promotion of nutrient absorption. This study comprehensively analyzed the genotypic and phenotypic characteristics of () strains isolated from the intestines of healthy chicks and assessed their potential as probiotics. The assembled genome consists of 29,521,986 bp, and a total of 1,771 coding sequences (CDSs) were predicted.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life
The low yield of exopolysaccharides (EPS) produced by lactic acid bacteria (LAB) restricts their industrial application. To overcome this limitation, a single-factor optimization strategy was applied to develop co-culture system involving Weissella confusa P2 and Candida shehatae. This approach resulted in 48.
View Article and Find Full Text PDFInt J Food Microbiol
August 2025
Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China. Electronic address:
Pseudomonas aeruginosa (P. aeruginosa) is an opportunistic pathogen that poses significant risks in food-related environments. Bacteriophages have emerged as a promising alternative strategy to control P.
View Article and Find Full Text PDFAppl Environ Microbiol
September 2025
Integrative Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou, China.
Bacterial pathogenicity is influenced by the genetic mutations that arise within the population, among which quorum-sensing (QS) is one of the key targets. Recent studies have reported that mutations in the global transcriptional regulator gene can revert QS activity in QS-inactive LasR mutants, thereby transforming the LasR cheater mutants deficient in public goods production into cooperators. However, the subsequent evolutionary trajectory of this population remains poorly understood.
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