Urokinase-type plasminogen activator and insulin-like growth factor-binding protein 3 mRNA expression in endometriotic lesions and eutopic endometrium: implications for the pathophysiology of endometriosis.
Ann N Y Acad Sci
; 997: 223-8, 2003 Nov.
Article
en En
| MEDLINE
| ID: mdl-14644829
ABSTRACT
The peritoneal fluid of women with endometriosis contains an increased insulin-like growth factor 1 (IGF-1) bioavailability, which is produced by limited hydrolysis of urokinase-type plasminogen activator (uPA) on IGF-binding protein 3 (IGFBP-3). Recently, IGF-1 was shown to inhibit apoptosis of endometrial-like cells in vitro, suggesting that a microenvironment of increased IGF-1 bioavailability can optimize the survival of endometrial cells grown ectopically. Here the expression of mRNA of IGFBP-3 and uPA in tissue biopsies from eutopic endometrium and endometriotic lesions obtained at laparoscopy from women with endometriosis have been analyzed, and it is documented that both IGFBP-3 and uPA mRNA expression are increased from 3- to 10-fold in endometriotic lesions versus eutopic endometrium. Consequently, the necessary components (uPA and IGFBP-3 expression) of endocrine/autocrine/paracrine enhancement of local IGF bioavailability mediated by uPA hydrolysis of the IGFBP-3 were present in endometriotic lesions. These data possibly explain the origin of the increased content of uPA activity, IGF-1 bioavailability, and NH(2)-truncated forms of IGFBP-3 in the peritoneal fluid of women with endometriosis.
Buscar en Google
Bases de datos:
MEDLINE
Asunto principal:
Activador de Plasminógeno de Tipo Uroquinasa
/
Proteína 3 de Unión a Factor de Crecimiento Similar a la Insulina
/
Predisposición Genética a la Enfermedad
/
Endometriosis
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Límite:
Female
/
Humans
Idioma:
En
Revista:
Ann N Y Acad Sci
Año:
2003
Tipo del documento:
Article
País de afiliación:
Grecia