has emerged as a major opportunistic pathogen meaning there is an immediate need to develop efficient antivirulence agents which offer a new class of superior therapeutics. Nanostructured lipid carriers (NLCs) containing α-terpineol (αT) were developed and characterized to determine expression profiles of quorum sensing regulated genes, antivirulence activity and antibiofilm effects against . The αT-NLCs had a size of 145.4 nm, polydispersity index of 0.242 and ζ-potential of -31.4 mV. They exhibited pronounced effects on the inhibition of quorum sensing mediated virulence and biofilm formation which were confirmed by molecular docking analysis and gene expression profiles. αT-NLCs show promise as effective antivirulence agents against in the postantibiotic era.
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http://dx.doi.org/10.2217/nnm-2020-0134 | DOI Listing |
Water Res
December 2024
Key Laboratory of Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, PR China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China. Electronic address:
As a byproduct of shale gas extraction, flowback water (FW) is produced in large quantities globally. Due to the unique interactions between pollutants and microorganisms, FW always harbor multiple antibiotic resistance genes (ARGs) that have been confirmed in our previous findings, potentially serving as a point source for ARGs released into the environment. However, whether ARGs in FW can disseminate or integrate into the environmental resistome remains unclear.
View Article and Find Full Text PDFBraz J Microbiol
December 2024
Department of Soil Science, "Luiz de Queiroz" College of Agriculture, University of São Paulo, Pádua Dias Av, 11, Piracicaba, SP, 13418-900, Brazil.
Microbes employ a variety of mechanisms, encompassing chemical signaling (e.g., quorum-sensing molecules) and genetic processes like horizontal gene transfer (HGT), to engage in interactions.
View Article and Find Full Text PDFBiofouling
December 2024
Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Katpadi, Vellore, India.
is a pathogenic bacterium that can infect humans and animals, yet the role of its outer membrane vesicles (OMVs) in mediating pathogenicity remains underexplored. This study evaluated the effects of linoleic acid (LA) and stearic acid (SA) on quorum sensing (QS)-mediated violacein production, biofilm formation, and OMV biogenesis in . Our findings revealed that 2 mM LA and 1 mM SA effectively quench QS, leading to a significant reduction in violacein production, biofilm formation, and OMV biogenesis.
View Article and Find Full Text PDFFront Microbiol
December 2024
Faculty of Biology, Research Group Biological Sensor-Actuator-Systems, TUD Dresden University of Technology, Dresden, Germany.
Understanding communication among microorganisms through the array of signal molecules and establishing controlled signal transfer between different species is a major goal of the future of biotechnology, and controlled multispecies bioreactor cultivations will open a wide range of applications. In this study, we used two quorum-sensing peptides from - namely, the competence and sporulation factor (CSF) and (PhrF)-to establish a controlled interkingdom communication system between prokaryotes and eukaryotes. For this purpose, we engineered as a reporter capable of detecting the CSF and PhrF peptides heterologously produced by the yeast .
View Article and Find Full Text PDFWorld J Microbiol Biotechnol
December 2024
Department of Microbiology, Government Science College, Vankal, Surat, 394 430, Gujarat, India.
Quorum sensing (QS) also known as bacterial cell-cell communication or bacterial crosstalk is a phenomenon regulating various bacterial traits that can affect plant growth and defence. Similarities in the structure of root exudates and bacterial signalling molecules have tremendous implications governing the plant heath. The rhizosphere ecosystem being an excellent example of plant-microbe and microbe-microbe interactions harbours a variety of microorganisms exhibiting quorum sensing.
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