DDR2 and hepatocellular carcinoma: Our work verified CEBPA-DT as an upstream regulator of β-catenin and facilitated the interaction between β-catenin and DDR2, thus inducing nuclear translocation of β-catenin; the activation of β-catenin subsequently binds to the Snail1 promotor to initiate transcription, hence inducing EMT process in hepatoma cells.