C3P1 and hepatocellular carcinoma: Three lncRNAs (GBAP1, MCM3AP-AS1, and SLC16A1-AS1) were upregulated in HCC tissues (Figure 6A–6C), while the other three lncRNAs (C3P1, HNF4A-AS1, and DIO3OS) were downregulated in HCC tissues (Figure 6D–6F).