Specifically, FANCD2 expression showed a significant correlation with the abundance of CD8 + T cells in 17 types of cancer, CD4 + T cells in 16 types of cancer, neutrophils in 18 types of cancer, myeloid dendritic cells in 14 types of cancer, macrophages in 14 types of cancer, and B cells in 13 types of cancer. This evidence concerns the gene CD8A and cancer.