FOXP3 and neoplasm: Representative immune markers were used to describe the infiltration levels of immune cells in the tumor microenvironment, for example, CD4+ T cells (CD3, CD4) (Figure 6A), nTregs (CD4, FOXP3) (Figure 6A), CD4+ naïve cells (CD4, CD45RA) (Figure 6B), exhausted cells (CD3, PD-1) (Figure 6C), and central memory T cells (CD45RO) (Figure 6D).