CD8A and neoplasm: Most of the estimated infiltration abundances of immune cells in the samples of high-risk group were down-regulated with statistical significance (p-value < 0.05) (Fig. 7A), including B cells, dendritic cells (DCs), immature dendritic cells (iDCs), activated dendritic cells (aDCs), plasmacytoid dendritic cells (pDCs), CD8+ T cells, macrophages, mast cells, neutrophils, T helper cells, T follicular helper cell (Tfh), Type 1 T help Cells (Th1 cells), tumor infiltrating lymphocyte (TIL), regulatory T cells (Treg).