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- W2010147889 abstract "Surface adhered bacterial colonies or biofilms are an important problem in medical and food industries. Bacteria use a chemical language to monitor their quorum and to express virulence factors, which eventually help them in colonization and manifestation of an infection. The LasR-LasI and RhlR-RhlI quorum-sensing (QS) systems of Pseudomonas aeruginosa control expression of virulence factors in a population density-dependent fashion. In this study we investigated the role of synthetic analogs to RhlR-RhlI system of P. aeruginosa strains (PAO-1; wild-type and mutants JP-1, PDO-100, and JP-2) responsible for production of acyl-homoserine lactones-2; butanol homoserine lactone (AHL-2; C4-HSL). We synthesized double (QS1207) and single (QS0108) sulfur analogs against (C4-HSL; AHL-2), an autoinducer of Pseudomonas QS system. Extensive biological investigation of these analogs suggested a growth promoting activity for these analogs in Pseudomonas controlling biofilm production and exo-protease secretion. We hypothesized that these thiolactone analogs could be potentially utilized as potent drug-delivery vehicles against biofilm-producing pathogens. As a proof of principle we conjugated the single sulfur analog QS0108 with the broad-spectrum antibiotic, ciprofloxacin (QS0108-Cip). The QS analog-antibiotic conjugate was significantly more effective at disrupting both the nascent and mature biofilms of P. aeruginosa than the free antibiotic." @default.
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- W2010147889 date "2010-09-30" @default.
- W2010147889 modified "2023-10-17" @default.
- W2010147889 title "Design, synthesis, and a novel application of quorum-sensing agonists as potential drug-delivery vehicles" @default.
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- W2010147889 doi "https://doi.org/10.3109/1061186x.2010.519032" @default.
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