FOXP3 and neoplasm: The TIMER database analysis was obtained, in lung adenocarcinoma, the expression of FOXP3 was inversely correlated with the purity of the tumor (r = −0.476, P = 2.79E−29); FOXP3 expression was positively correlated with the infiltration of common humoral immunity B cells (R = 0.531, P = 1.36E−36).