CD8A and colon adenocarcinoma: COAD patients with high aging-related risk have higher infiltration level of B cell naïve (p = 0.010), T cell CD8 (p = 0.010), and T cell regulatory (p = 0.045), but lower infiltration level of B cell memory (p = 0.017), macrophage M0 (p = 0.043), and mast cells activated (p = 0.027) (Figures 4(b)–4(g)).