Among the 12 DEGs, the expression level of DCN, CCL21, IGJ, CXCL14, FCN3, LAMA2, and NPY1R was progressively decreased from normal liver, PT, to PVTT (all were significantly except for LAMA2), and the up-expression of them linked with favorable survivals of all HCC patients (Figure 3). Here, NPY1R is linked to hepatocellular carcinoma.