Figure 9. Verification of the prognostic value and expression of hub genes of VPRS. Survival analysis of ADAMTS3, CCR2, NDRG2, and NODAL for patients in TCGA (A–D) and ICGC (E–H) cohorts. The protein expression level of ADAMTS3 (I), CCR2 (J), NDRG2 (K), and NODAL (L) in normal and HCC tissues based on the HPA database. (M) The relative mRNA expression levels of ADAMTS3, CCR2, NDRG2, and NODAL are compared between HCC and non-tumor tissues with real-time PCR results. ***p < 0.001, **p < 0.001, *p < 0.05.