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Type: Artigo
Title: Towards the development of an in vivo chemical probe for cyclin G associated kinase (GAK)
Author: Asquith, Christopher R. M.
Bennett, James M.
Su, Lianyong
Laitinen, Tuomo
Elkins, Jonathan M.
Pickett, Julie E.
Wells, Carrow I.
Li, Zengbiao
Willson, Timothy M.
Zuercher, William J.
Abstract: SGC-GAK-1 (1) is a potent, selective, cell-active chemical probe for cyclin G-associated kinase (GAK). However, 1 was rapidly metabolized in mouse liver microsomes by cytochrome P450-mediated oxidation, displaying rapid clearance in liver microsomes and in mice, which limited its utility in in vivo studies. Chemical modifications of 1 that improved metabolic stability, generally resulted in decreased GAK potency. The best analog in terms of GAK activity in cells was 6-bromo-N-(1H-indazol-6-yl)quinolin-4-amine (35) (IC50 = 1.4 mu M), showing improved stability in liver microsomes while still maintaining a narrow spectrum activity across the kinome. As an alternative to scaffold modifications we also explored the use of the broad-spectrum cytochrome P450 inhibitor 1-aminobenzotriazole (ABT) to decrease intrinsic clearance of aminoquinoline GAK inhibitors. Taken together, these approaches point towards the development of an in vivo chemical probe for the dark kinase GAK
Subject: Quinases ciclina-dependentes
Country: Suiça
Editor: MDPI
Rights: Aberto
Identifier DOI: 10.3390/molecules24224016
Date Issue: 2019
Appears in Collections:IQ - Artigos e Outros Documentos

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