IL18 and cancer: KEGG pathway enrichment results showed that mRNAs were mainly enriched in several pathways, including the VEGFA-VEGFR2 signaling pathway, Ras signaling pathway, oxytocin signaling pathway, G protein signaling pathways, proteoglycans in cancer, PI3K-Akt signaling pathway, IL-18 signaling pathway, signaling by interleukins, p53 signaling pathway, TCR signaling pathway, NF-kappa B signaling pathway and signaling by Rho GTPases.