CD8A and neoplasm: The expression of PITX1 was significantly correlation with tumor-infiltrating CD8+ T cells (Rho = −0.15, p = 8.56e−04), CD4+ T cells (Rho = 0.166, p = 2.22e−04), macrophages (Rho = −0.248, p = 2.36e−08), and DCs (Rho = −0.207, p = 3.83e−06) (Figure 7A).