Journal
MOLECULAR AND CELLULAR ENDOCRINOLOGY
Volume 260, Issue -, Pages 264-270Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mce.2006.02.019
Keywords
hCG beta; oncogenesis; TGFP receptor; apoptosis
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Ectopic expression of the beta-subunit of human chorionic gonadotropin (hCG) is now a recognized phenomenon in 20-40% of all common epithelial carcinoma arising from mucosal epithelia such as bladder, cervix, lung and naso-pharynx. Recent studies have shown that it acts as an autocrine growth factor by inhibiting apoptosis. Structural homology and in vitro studies suggest that it may achieve this by inhibition of the transforming growth factor beta (TGF beta) receptor complex. Such a molecular mechanism would go some way to explaining ectopic hCG beta's association with poor prognosis and tumors that will rapidly progress to metastasis. (c) 2006 Elsevier Ireland Ltd. All rights reserved.
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