Download MendeleyMetal binding pharmacophore click-derived discovery of new broad-spectrum metallo-beta-lactamase inhibitors.
Yan, Y.H., Ding, H.S., Zhu, K.R., Mu, B.S., Zheng, Y., Huang, M.Y., Zhou, C., Li, W.F., Wang, Z., Wu, Y., Li, G.B.(2023) Eur J Med Chem 257: 115473-115473
- PubMed: 37209449
- DOI: https://doi.org/10.1016/j.ejmech.2023.115473
- Primary Citation of Related Structures:
7YH9, 7YHA, 7YHB, 7YHC, 7YHD - PubMed Abstract:
The emergence of metallo-β-lactamases (MBLs) confers resistance to nearly all the β-lactam antibiotics, including carbapenems. Currently, there is a lack of clinically useful MBL inhibitors, making it crucial to discover new inhibitor chemotypes that can potently target multiple clinically relevant MBLs. Herein we report a strategy that utilizes a metal binding pharmacophore (MBP) click approach to identify new broad-spectrum MBL inhibitors. Our initial investigation identified several MBPs including phthalic acid, phenylboronic acid and benzyl phosphoric acid, which were subjected to structural transformations using azide-alkyne click reactions. Subsequent structure-activity relationship analyses led to the identification of several potent broad-spectrum MBL inhibitors, including 73 that manifested IC 50 values ranging from 0.00012 μM to 0.64 μM against multiple MBLs. Co-crystallographic studies demonstrated the importance of MBPs in engaging with the MBL active site anchor pharmacophore features, and revealed the unusual two-molecule binding modes with IMP-1, highlighting the critical role of flexible active site loops in recognizing structurally diverse substrates/inhibitors. Our work provides new chemotypes for MBL inhibition and establishes a MBP click-derived paradigm for inhibitor discovery targeting MBLs as well as other metalloenzymes.
Organizational Affiliation:
Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
