CD8A and breast cancer: We could observe the higher ImmuneScore in the alive BC than the dead patients (Figure 4A), and meanwhile the higher immune cell infiltration levels in the patients with good outcomes, manifested as the increased plasma cells, activated B cells, activated CD8 T cells, central memory CD4 T cells, CD56bright natural killer cells, CD56dim natural killer cells, and mast cells (Figure 3B), suggesting the important roles of those for BC survival outcomes associated with the anti-tumor immune response.