CD4 and hepatocellular carcinoma: Notably, dendritic cells in resting (p < 0.05), macrophages in M0 (p < 0.05), activated CD4 memory T cells (p < 0.05), mast cells in resting (p < 0.01), monocytes (p < 0.001), and regulatory T cells (Tregs, p < 0.0001) increased significantly in HCC patients in the high-risk group (Figure 6A).