CNTN1 and hepatocellular carcinoma: We found that the mRNA expression levels of NEURL1B was increased, while the mRNA expressions levels of CNTN1 and FCER2 were decreased in the HCC tissues compared with the normal tissues (p = 6.96 × 10−10, 6.94 × 10−32 and 2.26 × 10−13, respectively, Figure 5).