Design, Synthesis, and Characterization of 4-Aminoquinazolines as Potent Inhibitors of the G Protein-Coupled Receptor Kinase 6 (GRK6) for the Treatment of Multiple Myeloma.
J Med Chem
; 64(15): 11129-11147, 2021 08 12.
Article
em En
| MEDLINE
| ID: mdl-34291633
ABSTRACT
Both previous and additional genetic knockdown studies reported herein implicate G protein-coupled receptor kinase 6 (GRK6) as a critical kinase required for the survival of multiple myeloma (MM) cells. Therefore, we sought to develop a small molecule GRK6 inhibitor as an MM therapeutic. From a focused library of known kinase inhibitors, we identified two hits with moderate biochemical potencies against GRK6. From these hits, we developed potent (IC50 < 10 nM) analogues with selectivity against off-target kinases. Further optimization led to the discovery of an analogue (18) with an IC50 value of 6 nM against GRK6 and selectivity against a panel of 85 kinases. Compound 18 has potent cellular target engagement and antiproliferative activity against MM cells and is synergistic with bortezomib. In summary, we demonstrate that targeting GRK6 with small molecule inhibitors represents a promising approach for MM and identify 18 as a novel, potent, and selective GRK6 inhibitor.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Quinazolinas
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Desenho de Fármacos
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Inibidores de Proteínas Quinases
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Quinases de Receptores Acoplados a Proteína G
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Mieloma Múltiplo
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Antineoplásicos
Limite:
Animals
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Humans
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article