CXCL10, P2RX7, TLR3, and TLR4 were significantly upregulated in IS2 tumours in the TCGA cohort, whereas ANXA1, CXCL10, FPR1, IFNAR2, P2RX7, and TLR4 showed significantly higher expression levels in IS4 tumours in the GEO cohort. The gene discussed is FPR1; the disease is neoplasm.