Abstract
Background: Prevalence of microbial resistance due to Metallo-β-lactamase (MBL) enzyme pose a serious threat to human life. MBLs depend on active site zinc for their hydrolytic activity; hence, the investigation of zinc chelators emerged as an attractive strategy for the development of potent MBL inhibitors.
Methods: To prove that such chelators selectively target MBLs, in the present investigation, novel cephalosporins based MBL inhibitors (Cef-MBLi) were designed as a conjugate of cephalosporins with a potent zinc binder 8-thioquinoline (8-TQ).
Results: Cef-MBLi showed site specific release of conjugate only in the presence of a Veronaintegron encoded metallo-β-lactamase 2 (VIM-2) bacterial enzyme through hydrolytic cleavage mechanism. A total of 6 (4a-e and 6f) New Chemical Entities (NCE’s) were prepared, characterized and subjected for in vitro study.
Conclusion: Among tested NCE’s, 4c showed potent MBL inhibitory activity against the VIM-2 enzyme.
[http://dx.doi.org/10.1517/13543776.2010.515588] [PMID: 20839927]
[http://dx.doi.org/10.1016/0163-7258(85)90062-2] [PMID: 3889939]
[http://dx.doi.org/10.1093/clinids/10.4.699] [PMID: 3055170]
[http://dx.doi.org/10.1111/j.1600-0463.2009.02563.x] [PMID: 20041868]
[http://dx.doi.org/10.1038/s41579-019-0293-3] [PMID: 31745330]
[http://dx.doi.org/10.1038/nrmicro3380] [PMID: 25435309]
[http://dx.doi.org/10.1038/s41467-016-0009-6] [PMID: 28232747]
[http://dx.doi.org/10.1038/s41467-018-06839-1] [PMID: 30375382]
[http://dx.doi.org/10.1039/C8MD00342D] [PMID: 30288219]
[http://dx.doi.org/10.1007/s10930-020-09953-6] [PMID: 33421024]
[http://dx.doi.org/10.1021/acsomega.2c03671] [PMID: 36340146]
[http://dx.doi.org/10.1016/j.tips.2018.03.007] [PMID: 29680579]
[http://dx.doi.org/10.1016/j.mib.2017.10.026] [PMID: 29154026]
[http://dx.doi.org/10.1128/AEM.00698-18]
[http://dx.doi.org/10.1021/cr030102i] [PMID: 15700950]
[http://dx.doi.org/10.1016/j.jmgm.2022.108262] [PMID: 35839717]
[http://dx.doi.org/10.1016/j.mib.2010.09.006] [PMID: 20920882]
[http://dx.doi.org/10.1016/S1367-5931(99)00017-4] [PMID: 10508665]
[http://dx.doi.org/10.1517/13543776.2013.831071] [PMID: 23967802]
[http://dx.doi.org/10.3797/scipharm.1205-14] [PMID: 23641328]
[http://dx.doi.org/10.1039/C6SC04524C]
[http://dx.doi.org/10.1039/D0CC00356E] [PMID: 32048688]
[http://dx.doi.org/10.1038/nature13445] [PMID: 24965651]
[http://dx.doi.org/10.1021/acs.jmedchem.7b00407] [PMID: 28809565]
[http://dx.doi.org/10.1021/acs.jmedchem.6b01379] [PMID: 28191850]
[http://dx.doi.org/10.1038/nchembio.2326] [PMID: 28244987]
[http://dx.doi.org/10.1002/anie.201906790]
[http://dx.doi.org/10.1002/chem.202004694] [PMID: 33237604]
[http://dx.doi.org/10.1021/acsinfecdis.7b00094] [PMID: 28820574]
[http://dx.doi.org/10.1021/jm400769b] [PMID: 23898798]
[http://dx.doi.org/10.1021/acs.jmedchem.8b01923] [PMID: 31009558]
[http://dx.doi.org/10.1021/acsinfecdis.0c00083] [PMID: 32298084]
[http://dx.doi.org/10.1039/CS9881700111]
[http://dx.doi.org/10.1021/acs.oprd.7b00143]
[http://dx.doi.org/10.1002/jcc.540150503]
[http://dx.doi.org/10.1016/j.ejmech.2021.113257] [PMID: 33618159]
[http://dx.doi.org/10.1007/s10822-012-9547-0] [PMID: 22569591]
[http://dx.doi.org/10.1021/acs.jmedchem.9b01518] [PMID: 31765155]
[http://dx.doi.org/10.1021/acs.jcim.8b00545] [PMID: 30481020]