Imitation of ß-lactam binding enables broad-spectrum metallo-ß-lactamase inhibitors.
Nat Chem
; 14(1): 15-24, 2022 01.
Article
en En
| MEDLINE
| ID: mdl-34903857
Carbapenems are vital antibiotics, but their efficacy is increasingly compromised by metallo-ß-lactamases (MBLs). Here we report the discovery and optimization of potent broad-spectrum MBL inhibitors. A high-throughput screen for NDM-1 inhibitors identified indole-2-carboxylates (InCs) as potential ß-lactamase stable ß-lactam mimics. Subsequent structure-activity relationship studies revealed InCs as a new class of potent MBL inhibitor, active against all MBL classes of major clinical relevance. Crystallographic studies revealed a binding mode of the InCs to MBLs that, in some regards, mimics that predicted for intact carbapenems, including with respect to maintenance of the Zn(II)-bound hydroxyl, and in other regards mimics binding observed in MBL-carbapenem product complexes. InCs restore carbapenem activity against multiple drug-resistant Gram-negative bacteria and have a low frequency of resistance. InCs also have a good in vivo safety profile, and when combined with meropenem show a strong in vivo efficacy in peritonitis and thigh mouse infection models.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Beta-Lactamas
/
Inhibidores de beta-Lactamasas
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Nat Chem
Asunto de la revista:
QUIMICA
Año:
2022
Tipo del documento:
Article
Pais de publicación:
Reino Unido