Glucocorticoid-dependent action of neural crest factor AP-2: stimulation of phenylethanolamine N-methyltransferase gene expression.
J Neurochem
; 70(6): 2286-95, 1998 Jun.
Article
en En
| MEDLINE
| ID: mdl-9603193
AP-2 is a vertebrate transcription factor expressed in neural crest cells and their derivative tissues, including the adrenal medulla, where epinephrine is produced. AP-2 is shown to stimulate expression of the gene encoding the epinephrine biosynthetic enzyme phenylethanolamine N-methyltransferase (PNMT). However, stimulation of the PNMT gene by AP-2 requires glucocorticoids and appears to be mediated through the interaction of AP-2 with activated type II glucocorticoid receptors. Mutation of AP-2 and/or glucocorticoid receptor binding elements within the PNMT promoter disrupts the ability of AP-2 and glucocorticoids to induce PNMT promoter activity. These findings suggest, in the case of PNMT, that AP-2 stimulates gene expression through a novel glucocorticoid-dependent mechanism.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Feniletanolamina N-Metiltransferasa
/
Factores de Transcripción
/
Regulación Enzimológica de la Expresión Génica
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Proteínas de Unión al ADN
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Glucocorticoides
Límite:
Animals
Idioma:
En
Revista:
J Neurochem
Año:
1998
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Reino Unido