For the TCGA-HCC dataset, as shown in Supplementary Figure S1, 10 of the immune cell infiltrations were shown to be negatively (R < −0.15 and p < 0.01: CD4+ naive, TH17, Tfh, MAIT, NK, and CD4+ T infiltrations) or positively correlated (R > 0.15 and p < 0.01: Tex, nTreg, DC, and B-cell infiltrations) with KPNA2 expression in HCC tumors in the TCGA-HCC datasets. Here, CD4 is linked to hepatocellular carcinoma.