Fig. 1

The expression of DDR2 in cell lines and HCC tissues. a DDR2 mRNA expression in the immortalized normal human liver cell line L-02 and five hepatoma cell lines (MHCC-97H, HepG2, Huh-7, Hep3B and SMMC-7721) using qRT-PCR (n = 3, ^* P < 0.01). b DDR2 protein expression in the immortalized normal human liver cell line L-02 and five hepatoma cell lines (MHCC-97H, HepG2, Huh-7, Hep3B and SMMC-7721) using immunoblotting (n = 3, P < 0.01). c DDR2 mRNA expression in HCC tissues (T) and corresponding adjacent no tumorous tissues (N) using qRT-PCR (n = 112, P < 0.01). d The protein expression of DDR2 and phosphorylated DDR2 (p-DDR2) in HCC tissues (T) and corresponding adjacent no tumorous tissues (N) using immunoblotting (n = 112, P < 0.01, respectively)