Utilizing the TIMER analysis, we observed a significant association between CCNB1 expression and the abundance of several types of infiltrating immune cells: CD8+ T cells in 16 cancers, CD4+ T cells in 16 cancers, neutrophils in 11 cancers, myeloid dendritic cells in 19 cancers, macrophages in 20 cancers, and B cells in 11 cancers (Figure 10A). This evidence concerns the gene CD4 and cancer.