Blood cells (common lympoid progenitors (CLP), common myeloid progenitor cell (CMP), erythrocytes and granulocyte macrophage progenitor (GMP)), immune cells (CD8 + T-cells, naïve B-cells, plasma cells, Th1 and Th2 cells), and stroma/epithelial cells (preadipocytes and smooth muscle cells) were significantly enriched in BC group compared with control (Fig. 2b). Here, CD8A is linked to breast cancer.