CD4 and neoplasm: The levels of BIRC5 expression correlated negatively with B cells (Cor=-0.225, P=5.95e-07), CD4+T cells (Cor=-0.185, P=4.05e-05), and dendritic cells (Cor=-0.093, P=4.08e-02), while there was no significant association between tumor purity, CD8+T cells, macrophages, neutrophils (Figure 8).