In terms of immune cell distribution, the current study had characterized the relative proportions of 22 immune cells in patients belonging to the high and low risk groups of ovarian cancer TCGA cohort by the use of the CIBERSORT algorithm (Figure 7A), which had a significantly higher proportion of infiltration of CD8 T cells, Tregs and M1 macrophages in the low-risk group, compared with the high-risk group. Here, CD8A is linked to ovarian cancer.