PTGS2 and cancer: After screening by the Boxplot tool on the GEPIA website, in the list of 24 coexpressed genes, genes which showed significantly differential expression (with a P value < 0.05) and with significance in prognosis analysis, in various cancers, were as follows: AKT1, BCL2, CCK, CCL11, CXCL10, IL1RL1, IL6, JAK2, MAPK14, MYD88, PTGS2, SOD1, STAT3, STAT6, TLR4, and TXNIP.