CD4 and cancer: Also, in most of the cancers, there was a significant correlation between UBE2C gene expression and CD4+ T cell (Act CD4), effector memory CD8+ T cell (Tem‐CD8), type 1 T helper cell (Th1), type 2 T helper cell (Th2), immature B cell (Imm B), natural killer cell (NK), CD 56dim natural killer cell (CD56dim), plasmacytoid dendritic cell (pDC), immature dendritic cell (iDC), eosinophil, and mast cell (Figure 7A).