SMAD2 and thyroid gland undifferentiated (anaplastic) carcinoma: Expression of SMAD2 and TGFBR1 genes, which were elevated in most primary anaplastic thyroid cancer (ATC), was regulated by miR-30 in ATC-derived cells confirming involvement of TGF signaling in modifying MET/epithelial–mesenchymal transition (EMT)79.