CD4 and hepatocellular carcinoma: The results revealed that a significant positive correlation between H2AFY expression and infiltration level of B cells (r = 0.441, P = 8.99e−18), CD8+ T cells (r = 0.292, P = 3.85e−08), CD4+ T cells (r = 0.442, P = 7.57e−18), Macrophages (r = 0.554, P = 8.38e−29), Neutrophils (r = 0.455, P = 4.84e−19), and Dendritic cells (r = 0.462, P = 2.34e−19) in HCC (Figure 7A).