SLC7A11 and hepatocellular carcinoma: Among these six no-coding RNAs, lncRNA SLC7A11-AS1, LINC01224, hsa_circ_0006123 and hsa_circ_0005480 were found to be upregulated in HCC, while the expression of the others was similar to that in non-cancerous tissues (Figure 6A and 6B).