期刊
MOLECULAR AND CELLULAR ENDOCRINOLOGY
卷 336, 期 1-2, 页码 169-173出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mce.2010.11.008
关键词
Adrenal cortex; Tumors; Genetics
Adrenocortical tumors in children are usually diagnosed because of signs of virilization and their prognosis is poor. They possess several distinct pathological features compared to adrenocortical tumors in adults and have an exceptional prevalence in southern Brazil, where they are nearly invariably linked to the presence of a germline specific TP53 (R337H) mutation. Other important factors in childhood adrenocortical tumor pathogenesis are overexpression of the Steroidogenic Factor-1 transcription factor and imprinting defects in the 11p15 genomic region, causing overexpression of Insulin-like Growth Factor-2. Genomic studies have revealed the prognostic relevance of the expression of some Major Histocompatibility Complex genes and the deregulation of the Insulin-like Growth Factor/mammalian Target Of Rapamycin pathway by microRNAs in these tumors. Our hope is that these findings will constitute the basis for the development of novel therapies that will be more active against these tumors and less toxic for the patients. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
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