Infiltration of Tregs, TFHs, CD8+, resting and activated memory CD4+ T cells, M1 macrophages, resting DCs, and naive B cells positively correlated with STAT4 expression; however, STAT4 negatively correlated with the infiltration of naive CD4+ T, resting NK and resting mast cells, M0 macrophages, activated DCs, and memory B cells in most tumor types (Figure 9D). Here, CD4 is linked to neoplasm.