TRAIL	Tumor necrosis factor-related apoptosis-inducing ligand
Wnt	Wingless type MMTV integration site family
SHH	Sonic hedgehog
TGFβ	Transforming growth factor β
DR	Death receptors
OSCC	Oral squamous cell carcinomas
ERK	Extracellular signal regulated kinase
MAPK	Mitogen-activated protein kinase
HNSCC	Head and neck squamous cell carcinomas
EMT	Epithelial to mesenchymal transition
ECM	Extracellular matrix
ER stress	Endoplasmic reticulum stress