EGFR and nasopharyngeal carcinoma: Exosomes contain the biological proteins epidermal growth factor receptor (EGFR) and phosphoinositide 3‐kinase (PI3K), which, when activated by protein kinase B (AKT) and extracellular signal‐regulated kinase (ERK) signaling pathways, cause nasopharyngeal cancer cells to undergo carcinogenesis [103].