In the present study, SAAL1 expression correlated positively with favorable tumor-infiltrating immune cells such as activated CD4+ memory T cells, activated NK cells, M1 macrophages, and CD8+ T cells, and negatively with unfavorable tumor-infiltrating immune cells such as Tregs, resting mast cells, and resting CD4+ memory T cells. This evidence concerns the gene CD4 and neoplasm.