CD4 and cancer: Based on SOX9 gene expression, we reappraised the invasion scores of six immune cells (lymphocyte T CD4, lymphocyte B, macrophage, lymphocyte T CD8, neutrophil, and dendritic cells) for 9,406 tumor samples in 36 cancer types and six immune cells (SC, MHC, EC, IPS, CP, and AZ) and 22 class immunocytes in 9,555 cancer specimens from 39 neoplasm types.