Constitutive beta-catenin activation induces adrenal hyperplasia and promotes adrenal cancer development.
Hum Mol Genet
; 19(8): 1561-76, 2010 Apr 15.
Article
em En
| MEDLINE
| ID: mdl-20106872
ABSTRACT
Adrenocortical carcinoma is a rare but aggressive cancer with unknown aetiology. Constitutive activation of beta-catenin is the most frequent alteration in benign and malignant adrenocortical tumours in patients. Here, we show that constitutive activation of beta-catenin in the adrenal cortex of transgenic mice resulted in progressive steroidogenic and undifferentiated spindle-shaped cells hyperplasia as well as dysplasia of the cortex and medulla. Over a 17 months time course, transgenic adrenals developed malignant characteristics such as uncontrolled neovascularization and loco-regional metastatic invasion. These oncogenic events were accompanied by ectopic differentiation of glomerulosa at the expense of fasciculata cells, which caused primary hyperaldosteronism. Altogether these observations demonstrate that constitutively active beta-catenin is an adrenal oncogene which triggers benign aldosterone-secreting tumour development and promotes malignancy.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Córtex Suprarrenal
/
Neoplasias das Glândulas Suprarrenais
/
Beta Catenina
Tipo de estudo:
Prognostic_studies
Limite:
Animals
/
Humans
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article