Discovery of Potent Phosphodiesterase-9 Inhibitors for the Treatment of Hepatic Fibrosis.
J Med Chem
; 64(13): 9537-9549, 2021 07 08.
Article
en En
| MEDLINE
| ID: mdl-34142552
ABSTRACT
Hepatic fibrosis commonly exists in chronic liver disease and would eventually develop to cirrhosis and liver cancer with high fatality. Phosphodiesterase-9 (PDE9) has attracted profound attention as a drug target because of its highest binding affinity among phosphodiesterases (PDEs) with cyclic guanosine monophosphate. However, no published study has reported PDE9 inhibitors as potential agents against hepatic fibrosis yet. Herein, structural modification from a starting hit LL01 led to lead 4a, which exhibited an IC50 value of 7.3 nM against PDE9, excellent selectivity against other PDE subfamilies, and remarkable microsomal stability. The cocrystal structure of PDE9 with 4a revealed an important residue, Phe441, capable of improving the selectivity of PDE9 inhibitors. Administration of 4a exerted a significant antifibrotic effect in bile duct-ligation-induced rats with hepatic fibrosis and transforming growth factor-ß-induced fibrogenesis. This therapeutic effect was indeed achieved by selectively inhibiting PDE9 rather than other PDE isoforms, identifying PDE9 inhibitors as potential agents against hepatic fibrosis.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Inhibidores de Fosfodiesterasa
/
Fibrosis
/
3',5'-AMP Cíclico Fosfodiesterasas
/
Descubrimiento de Drogas
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
J Med Chem
Asunto de la revista:
QUIMICA
Año:
2021
Tipo del documento:
Article