Identification of a selective inhibitor of transforming growth factor ß-activated kinase 1 by biosensor-based screening of focused libraries.
Bioorg Med Chem Lett
; 27(4): 1031-1036, 2017 02 15.
Article
en En
| MEDLINE
| ID: mdl-28109791
ABSTRACT
Transforming growth factor-ß activated kinase 1 (TAK1), a member of the mitogen-activated protein kinase kinase kinase family, plays an essential role in mediating signals from various pro-inflammatory cytokines and therefore may be a good target for developing anti-inflammation agents. Herein, we report our efforts to identify TAK1 inhibitors with a good selectivity profile with which to initiate medicinal chemistry. Instead of resorting to a high-throughput screening campaign, we performed biosensor-based biophysical screening for a limited number of compounds by taking advantage of existing knowledge on kinase inhibitors. Rather than focusing on one specific inhibition mode, we searched for three different types, Type I (ATP-competitive, DFG-in), Type II (DFG-out), and Type III binders (non-ATP competitive) in parallel, and succeeded in identifying candidates in all three categories efficiently and rapidly. Finally, the biosensor-based binding kinetics for the active and inactive forms of TAK1 were measured to prioritize the Type I and Type II inhibitors. The effort resulted in the identification of a new TAK1-selective Type I compound with a thienopyrimidine scaffold that served as a good starting point for medicinal chemistry.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Técnicas Biosensibles
/
Quinasas Quinasa Quinasa PAM
/
Inhibidores de Proteínas Quinasas
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
/
Screening_studies
Límite:
Humans
Idioma:
En
Revista:
Bioorg Med Chem Lett
Asunto de la revista:
BIOQUIMICA
/
QUIMICA
Año:
2017
Tipo del documento:
Article