CXCL9 and neoplasm: As shown in Figure 5D, CXCL9 expression was negatively correlated with tumor purity (P=4.26 × 10-9), but positively correlated with B cell level (P=1.94 × 10-26), CD8+T cell level (P=5.31 × 10-21), CD4+T cell level (P=1.28 × 10-6), neutrophil level (P=1.89 × 10-8), macrophage level (P=3.85 × 10-8), and dendritic cell level (P=6.74 × 10-22).