CD4 and breast cancer: Low to moderate correlation was observed in various immunocyte subpopulations (figure 8f) and the violin plot (Figure 8g) revealed that BC tissues displayed a higher proportion of activated CD4 memory T cells, follicular helper T cells, Tregs, resting natural killer (NK) cells, monocytes, M0, M1, and M2 macrophages, resting mast cells, and mast cells than normal tissues.