CD4 and cancer: Figure 6B shown the relations between expression of LIMK1 and 28 types of TILs across human cancers. As shown in Figure 6C, the expression of LIMK1 was correlated with abundance of CD8+ T cells (r = 0.401, P = 2.2e-16), CD4+ T cells (r = 0.317, P = 1.92e-16), monocyte cells (r = 0.289, P = 2.71e-11), treg cells (r = 0.289, P = 4.41e-11), CD56dim cells (r = 0.275, P = 2.31e-10), and myeloid derived suppressor cells (MDSC, r = 0.275, P = 2.41e-10). These data indicated that LIMK1 may play a specific role in immune infiltration in lung adenocarcinoma.