European Journal of Pharmaceutical Sciences (2019)
Update date:2022-08-16
Topics:
Chang, Yiqun
Wang, Peng-Cheng
Ma, Hong-Ming
Chen, Si-Yu
Fu, Yu-Hang
Liu, Yuan-Yuan
Wang, Xuan
Yu, Guang-Chao
Huang, Tao
Hibbs, David E.
Zhou, Hai-Bo
Chen, Wei-Min
Lin, Jing
Wang, Chao
Zheng, Jun-Xia
Sun, Ping-Hua
The biofilm formation of Pseudomonas aeruginosa (P. aeruginosa) is regulated by a phenomenon of quorum sensing (QS). With 5-hydroxyl-3,4-halogenated-5H-furan-2-ones as beginning, analogs bearing alkyl chains, vinyl bromide, or aromatic rings were designed and synthesized. The minimum inhibitory concentration (MIC) of the compounds against P. aeruginosa was assayed and the biofilm inhibition ratio was determined at different concentrations lower than the MIC. C-5 aromatic substituted furanones showed remarkable biofilm formation as well as inhibition of virulence factor production in P. aeruginosa. Fluorescence report analysis identified the QS regulatory mechanism of the most active compound 29. This study provides us a novel candidate for combating drug resistant bacteria strains by merely inhibiting biofilm formation. Without suppressing the regular life cycle of the bacteria, bacterial resistance mechanisms may not be activated.
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