Fig. 3

KEGG and GO enrichment analyses of all DEGs and the PPI network of hub-genes. A B KEGG and GO analyses of the TCGA-LIHC database. C D KEGG and GO analyses of the GEO dataset. The color represents the adjusted P-values, and the size of the spots represents the gene number. E The protein–protein interaction (PPI) network and the candidate hub genes. Edges represent the protein–protein associations. The red nodes represent genes with a high MCC score, while the yellow node represents genes with a low MCC score