The expression of LINC01419 in multiple HCC cell lines with relatively low basal expression levels was significantly increased by 5‐aza‐2′‐deoxycytidine (5‐AzaC) treatment, whereas there was little change in LINC01419 expression in Huh7 cells, which have high LINC01419 expression (Figure 5B), implying the role of DNA methylation in the transcriptional inhibition of LINC01419. Here, LINC01419 is linked to hepatocellular carcinoma.