Notably, these included the PI3K/Akt signaling pathway, pathways related to miRNAs in cancer, general cancer pathways, nitrogen metabolism, endocrine resistance, proteoglycans in cancer, prostaglandins in cancer, the Ras signaling pathway, arachidonic acid metabolism, and pathways associated with EGFR tyrosine kinase inhibitor resistance. Here, PIK3CA is linked to cancer.