The relative expression and distribution of HCC tumor-specific marker genes (EPCAM, SOX9, AFP, KRT7, S100A6, and S100A11) and hepatic lineage marker genes (ALB, PCK1, FGG, FGA, TTR, CEBPB, APOB, CYP2E1, and APOE) are also shown in the UMAP plots (Figure 3C and Figure 3D). Here, APOE is linked to hepatocellular carcinoma.