RBx-0597, a potent, selective and slow-binding inhibitor of dipeptidyl peptidase-IV for the treatment of type 2 diabetes.
Eur J Pharmacol
; 652(1-3): 157-63, 2011 Feb 10.
Article
en En
| MEDLINE
| ID: mdl-20540938
Dipeptidyl peptidase IV (DPP-IV) inhibiton is a well recognized approach to treat Type 2 diabetes. RBx-0597 is a novel DPP-IV inhibitor discovered in our laboratory. The aim of the present study was to characterize the pharmacological profiles of RBx-0597 in vitro and in vivo as an anti-diabetic agent. RBx-0597 inhibited human, mouse and rat plasma DPP-IV activity with IC(50) values of 32, 31 and 39nM respectively. RBx-0597 exhibited significant selectivity over dipeptidyl peptidase8 (DPP-8), dipeptidyl peptidase9 (DPP-9) (150-300 fold) and other proline-specific proteases (>200-2000 fold). Kinetic analysis revealed that RBx-0597 is a competitive and slow binding DPP-IV inhibitor. In ob/ob mice, RBx-0597 (10mg/kg) inhibited plasma DPP-IV activity upto 50% 8h post-dose and showed a dose-dependent glucose excursion. RBx-0597 (10mg/kg) showed a significant glucose lowering effect (â¼25% AUC of â³ blood glucose) which was sustained till 12h, significantly increased the active glucagon-like peptide-1(GLP-1) and insulin levels. It showed a favourable pharmacokinetic profile (plasma clearance:174ml/min/kg; C(max) 292ng/ml; T(1/2) 0.28h; T(max) 0.75h and V(ss) 4.13L/kg) in Wistar rats with the oral bioavailability (F(oral)) of 65%. In summary, the present studies indicate that RBx-0597 is a novel DPP-IV inhibitor with anti-hyperglycemic effect and a promising candidate for further development as a drug for the treatment of type 2 diabetes.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Dipeptidil Peptidasa 4
/
Diabetes Mellitus Tipo 2
/
Inhibidores de la Dipeptidil-Peptidasa IV
/
Hipoglucemiantes
Límite:
Animals
Idioma:
En
Revista:
Eur J Pharmacol
Año:
2011
Tipo del documento:
Article
País de afiliación:
India
Pais de publicación:
Países Bajos