In addition to this, Pearson correlation analysis revealed that their expression was correlated positively or negatively with some infiltration immune cells in ccRCC microenvironment except AC078950.1, such as regulatory T cells, T follicular helper cells, resting mast cells, CD8+ T cells, and naïve B cells (Supplementary material 8: Figure S5). Here, CD8A is linked to nonpapillary renal cell carcinoma.