A novel fluorescent probe for the detection of AmpC beta-lactamase and the application in screening beta-lactamase inhibitors.



Yu, Pan, Yang, Jia-Ning, Yan, Jin-Wu, Meng, Zhi-Zhong, Hong, W David, Roberts, Adam P, Ward, Stephen A, Zhang, Lei and Li, Shan
(2020) A novel fluorescent probe for the detection of AmpC beta-lactamase and the application in screening beta-lactamase inhibitors. Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 234.

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Abstract

The rapid detection of β-lactamases (Blas) and effective screening of Bla inhibitors are critically important and urgent for solving antibiotic resistance and improving precision medicine. Here a novel fluorescent probe CDC-559 was designed and synthesized, which can be used for the selective and direct detection of AmpC Blas. More importantly, it can realize screening the Bla inhibitors with sulbactam sodium and tazobactam as model compounds, and the half-maximal inhibitory concentration are 0.279 μM and 0.053 μM, respectively. CDC-559 can be applied not only to examine the resistance of bacterial strains, but also to categorize its mode of action specifically, which is consistent with the essential result of the Blas. The research suggests that CDC-559 probe has tremendous potential in the rapid detection of AmpC Blas as well as the strains with AmpC-encoded gene, which is instructive in promoting better antibiotic stewardship practices and developments.

Item Type: Article
Uncontrolled Keywords: β-Lactamase, Inhibitor screening, Fluorescence probe, AmpC
Depositing User: Symplectic Admin
Date Deposited: 01 Apr 2020 11:22
Last Modified: 17 Apr 2021 07:12
DOI: 10.1016/j.saa.2020.118257
URI: https://livrepository.liverpool.ac.uk/id/eprint/3080624