As summarized in Table 2, for COL4A1 and COL4A2 in HCC, the most correlated kinase-targets network were PRKG1, PTK2B, MAPK7, and CAMK2A; the most correlated microRNA-targets network were MIR-140, MIR-204/MIR-211, MIR-7, MIR-23A/MIR-23B, MIR-130A/MIR-301/MIR-130B, MIR-519E, MIR-518C, and MIR-9; the most correlated transcript factor-target networks were V$SRF_Q6, V$RSRFC4_Q2, CTGYNNCTYTAA_UNKNOWN, V$MEF2_01, V$AML1_Q6, V$HEN1_01 and V$EVI1_04 (v7.4 TRANSFAC). Here, COL4A1 is linked to hepatocellular carcinoma.