LAPS Insulin115: A novel ultra-long-acting basal insulin with a unique action profile.
Diabetes Obes Metab
; 19(12): 1722-1731, 2017 12.
Article
en En
| MEDLINE
| ID: mdl-28497570
AIMS: To conduct a comprehensive pre-clinical study of the novel ultra-long acting insulin analogue LAPS Insulin115. METHODS: Pharmacokinetic/pharmacodynamic studies comparing LAPS Insulin115 with other basal insulins were conducted in genetically diabetic (db/db) mice. Insulin signalling in the major target organs was analysed using Western blot after single subcutaneous injection in wild-type male Wistar rats. Using in vitro assays we analysed transendothelial transport, insulin receptor (IR) interaction, and the mitogenic and metabolic properties of LAPS Insulin115. Furthermore, IR downregulation after long-term exposure to high concentrations of LAPS Insulin115 was analysed using an in vitro desensitization/resensitization model. RESULTS: The novel Fc-conjugated insulin derivative LAPS Insulin115 showed an extensively prolonged pharmacokinetic and pharmacodynamic profile in rodents. Despite its size of 59 kDa, LAPS Insulin115 passes the vascular endothelial barrier and induces insulin signalling in all major target tissues in rats. In vitro, LAPS Insulin115 showed a very slow onset of action because of its reduced IR affinity; however, after long-term stimulation it was equipotent in respect to its metabolic potency and showed no increased mitogenic action when compared with regular insulin. Remarkably, under conditions of chronic exposure, LAPS Insulin115 does not induce irreversible desensitization of target cells, which is probably attributable to much less prominent IR downregulation. CONCLUSION: Thus, LAPS Insulin115 exhibits a unique in vivo and in vitro profile and thereby represents an excellent candidate for a once-weekly insulin analogue.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fragmentos Fc de Inmunoglobulinas
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Receptor de Insulina
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Transducción de Señal
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Drogas en Investigación
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Regulación de la Expresión Génica
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Insulina de Acción Prolongada
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Hipoglucemiantes
Idioma:
En
Revista:
Diabetes Obes Metab
Asunto de la revista:
ENDOCRINOLOGIA
/
METABOLISMO
Año:
2017
Tipo del documento:
Article
País de afiliación:
Alemania
Pais de publicación:
Reino Unido