As shown in Supplementary Figure S4, BATF was positively correlated with the natural killer cell–mediated cytotoxicity, B-cell receptor signaling pathway, programmed death ligand one expression and the programmed death 1 (PD-1) checkpoint pathway in cancer, antigen processing and presentation, T-cell receptor signaling pathway, cytokine–cytokine receptor interaction, Th1 and Th2 cell differentiation, and cell adhesion. This evidence concerns the gene BATF and cancer.