In addition, STMN1, RAP1A, FLT3, HSPA8, ANGPT2, and PGF were identified as the key oncogenic components in HCC samples with different TNM stage, T classification, lymph node metastasis, and distant metastasis, with higher expression levels indicating higher stage (Figures 4A–D). This evidence concerns the gene PGF and hepatocellular carcinoma.