Figure 2
Signaling pathways implicated in thyroid carcinogenesis. RAS/RAF/MEK/ERK and PI3K/AKT/mTOR pathways are involved in propagation
of signals from cell membrane tyrosine kinase receptors into the nucleus and regulate multiple cellular processes, including
proliferation, survival, growth, migration, and differentiation. The main therapeutic agents and their targets are shown.
CYS, cysteine-rich domain; GDNF, glial cell-derived neurotrophic factor; PIP3, phosphatidylinositol (3,4,5)-trisphosphate;
TD, transmembrane domain; TK, tyrosine kinase domain.