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Glucocorticoid-dependent action of neural crest factor AP-2: stimulation of phenylethanolamine N-methyltransferase gene expression.
Ebert, S N; Ficklin, M B; Her, S; Siddall, B J; Bell, R A; Ganguly, K; Morita, K; Wong, D L.
Afiliación
  • Ebert SN; Nancy Pritzker Laboratory, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, California 94305-5485, USA.
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.
Asunto(s)
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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 / Proteínas de Unión al ADN / Glucocorticoides Límite: Animals Idioma: En Revista: J Neurochem Año: 1998 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
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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 / Proteínas de Unión al ADN / Glucocorticoides Límite: Animals Idioma: En Revista: J Neurochem Año: 1998 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido