NCIt synonyms : Thyroid Cancer Pathway; PTC Pathway;
NCIt related terms : Thyroid cancer;
Alternative definition : KEGG: Papillary thyroid carcinoma (PTC), the most frequent neoplasia originating from
the thyroid epithelium, accounts for about 80% of all thyroid cancers. Chimeric oncogenes,
created by chromosomal rearrangements involving prevalently RET and, to a less extent,
NTRK1 loci, are implicated in the development of papillary carcinoma. These are inappropriately
expressed and stimulate constitutive signaling, bypassing the need for receptor activation
by growth factors. Alternatively, mutant RAS directly stimulates BRAF, whereas mutant
BRAF directly stimulates MEK.;