The expression of STAT1 was negatively associated with tumor purity (r = −0.451, p = 2.69e-03), B cells (r = −0.364, p = 1.94e-02), macrophage (r = −0.499, p = 8.89e-04) and MDSCs (r = −0.531, p = 3.57e-04) in infiltrating levels, but positively correlated with CD8+ T cells (r = 0.641, p = 6.20e-06), myeloid dendritic cells (r = 0.62, p = 1.55e-05) and neutrophils (r = 0.809, p = 1.55e-10) in infiltrating levels. The gene discussed is STAT1; the disease is neoplasm.