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Inhibitory effects of novel 1,4-disubstituted 1,2,3-triazole compounds on quorum-sensing of P. aeruginosa PAO1

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Abstract

Quorum sensing (QS) inhibition is an essential strategy to combat bacterial infection. Previously, we have synthesized a series of thymidine derivatives bearing isoxazole and 1,2,3-triazole rings (TITL). Herein, the inhibitory effects of TITL on QS of Pseudomonas aeruginosa PAO1 were evaluated. In vitro results demonstrated that TITL effectively inhibited biofilm formation and reduced the virulence factors of P. aeruginosa PAO1. In combination with antibiotics, our TITL compounds significantly prolonged the lifespans of Caenorhabditis elegans N2 nematodes that were infected with P. aeruginosa PAO1 in vivo. In conclusion, TITL compounds are promising candidates for the treatment of antibiotic-resistant P. aeruginosa PAO1.

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Funding

This study was supported by the National Engineering Research Center for Strategic Drugs, Beijing Institute of Pharmacology and Toxicology Project of China (2018L0444J00093 and 2016L044J00004).

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Authors

Contributions

Shuang Li, Yumin Zhang, and Feng Lin conceived and designed the experiments. Shuang Li performed the experiments. Shuang Li, Kai Jiang, and Huiying Wang analyzed and interpreted the data. Shuang Li wrote the initial draft of the manuscript draft. Feng Lin and Kai Jiang revised and edited the manuscript. All of the authors have approved the final manuscript.

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Correspondence to Feng Lin.

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Li, S., Zhang, Y., Jiang, K. et al. Inhibitory effects of novel 1,4-disubstituted 1,2,3-triazole compounds on quorum-sensing of P. aeruginosa PAO1. Eur J Clin Microbiol Infect Dis 40, 373–379 (2021). https://doi.org/10.1007/s10096-020-03998-2

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  • DOI: https://doi.org/10.1007/s10096-020-03998-2

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