We then used Western blots to check the protein expression of the three genes after oemiR-139-5p or adding miR-139-5p inhibitor into HCC cells, and the results that led us to focus on SLITRK4 for its expression were decreased/increased after overexpressing miR-139-5p/adding miR-139-5p inhibitor in HCC cells (Figure 3B,C). This evidence concerns the gene SLITRK4 and hepatocellular carcinoma.