High cDC TNBC were significantly associated with a high fraction of anti-cancer immune cells; CD8+ T cells, CD4+ memory T cells, and B cells, and a low fraction of T helper 1 (Th1) in the TCGA cohort (Figure 4A; p = 0.038, p < 0.001, and p = 0.004, respectively). Here, CD4 is linked to cancer.