2 results
DOI: 10.1590/S0004-27302007000500003
Thyroid cancers are the most frequent endocrine neoplasms and mutations in the thyrotropin receptor (TSHR) are unusually frequent. Here we present the state-of-the-art concerning the role of TSHR in thyroid cancer and discuss it in light of the cancer stem cell theory or the classical view. We briefly review the gene and protein structure updating the cancer related TSHR mutations database. Intriguingly, hyperfunctioning TSHR mutants characterise differentiated cancers in contrast to undifferentiated thyroid cancers which very often bear silenced TSHR. […]
Keywords: cancer; MAPK; NIS; PI3K; PKA; Signalling; thyroid; thyrotropin; Wnt
DOI: 10.1590/S0004-27302004000400016
Carney complex (CNC) is a familial multiple neoplasia syndrome associated with abnormal skin and mucosal pigmentation, primary pigmented nodular adrenocortical disease (PPNAD), cardiac and cutaneous myxomas, GH and PRL pituitary adenoma, testicular tumors, thyroid adenoma or carcinoma and ovarian cysts. CNC is inherited as an autosomal dominant trait and has some clinical similarities to McCune-Albright syndrome. Recently, genes related to stimulation of the cAMP signaling pathway have been considered candidates for causing CNC. We report a 17-yr-old man with PPNAD, […]
Keywords: Carney complex; Cushing’s syndrome; PKA; Primary pigmented nodular adrenocortical disease