RESUMEN
A novel series of EP4 agonists and antagonists have been identified, and then used to validate their potential in the treatment of inflammatory pain. This paper describes these novel ligands and their activity within a number of pre-clinical models of pain, ultimately leading to the identification of the EP4 partial agonist GSK726701A.
Asunto(s)
Antiinflamatorios/química , Isoindoles/química , Subtipo EP4 de Receptores de Prostaglandina E/agonistas , Animales , Antiinflamatorios/farmacocinética , Antiinflamatorios/uso terapéutico , Células Sanguíneas/citología , Células Sanguíneas/efectos de los fármacos , Células Sanguíneas/metabolismo , Dinoprostona/química , Dinoprostona/uso terapéutico , Evaluación Preclínica de Medicamentos , Semivida , Humanos , Concentración 50 Inhibidora , Isoindoles/farmacocinética , Isoindoles/uso terapéutico , Lipopolisacáridos/farmacología , Dolor/tratamiento farmacológico , Dolor/patología , Dolor/veterinaria , Isoformas de Proteínas/antagonistas & inhibidores , Isoformas de Proteínas/metabolismo , Ratas , Subtipo EP4 de Receptores de Prostaglandina E/metabolismo , Factor de Necrosis Tumoral alfa/metabolismoRESUMEN
The peroxisome proliferator-activated receptor γ (PPARγ) is a ligand-activated nuclear receptor, thought to play a role in energy metabolism, glucose homeostasis and microglia-mediated neuroinflammation. A novel benzimidazole series of centrally penetrant PPARγ partial agonists has been identified. The optimization of PPARγ activity and in vivo pharmacokinetics leading to the identification of GSK1997132B a potent, metabolically stable and centrally penetrant PPARγ partial agonist, is described.
Asunto(s)
Bencimidazoles/farmacología , Descubrimiento de Drogas , PPAR gamma/antagonistas & inhibidores , Bencimidazoles/síntesis química , Bencimidazoles/química , Relación Dosis-Respuesta a Droga , Estructura Molecular , PPAR gamma/metabolismo , Estereoisomerismo , Relación Estructura-ActividadRESUMEN
We describe the discovery and optimization of a novel series of benzofuran EP(1) antagonists, leading to the identification of 26d, a novel nonacidic EP(1) antagonist which demonstrated efficacy in preclinical models of chronic inflammatory pain.