There were significant positive correlations with T cell CD8 + cells in 23 types of cancer, with CD4 + cells in 20 types of cancer, with Neutrophil in 24 types of cancer, with Myeloid dendritic cell in 25 types of cancer, with Macrophage in 27 types of cancer, with B cell in 22 types of cancer. This evidence concerns the gene CD8A and cancer.