Functional enrichment analysis of GO and KEGG of the DEGs revealed that SART3 is involved in immune infiltration-related pathways of HCC, such as the classical pathway of complement activation, humoral immune response mediated by circulating immunoglobulin, immunoglobulin receptor binding, antigen binding, and immunoglobulin-mediated immune response (Figure 7D). The gene discussed is MPIG6B; the disease is hepatocellular carcinoma.