EGF and breast cancer: In addition to the pathways mentioned above, there are other signals involved with EMT in breast cancer, including Nuclear factor-kappaB (NF-κB), Phosphatidylinositol 3-Kinase (PI3K)/AKT, Mitogen-Activated Protein Kinase (MAPK), Hypoxia‐Induced Factor (HIF), Epidermal Growth Factor (EGF) and so on.