Akt signaling 1 Article 1 Asian 1 Asian cell lines Cell Line 1 Cell Line, Tumor 1 Cell Movement 1 EGFR signaling 1 Epidermal Growth Factor 1 HSG cell line 1 HaCat cell line 1 Head and Neck Neoplasms 1 Humans 1 MAPK signaling 1 Protein Kinase Inhibitors 1 Signal Transduction 1 Western blotting 1 cell line 1 cell migration 1 cell motility 1 cell motion 1 controlled study 1 down regulation 1 drug effect 1 epidermal growth factor 1 epidermal growth factor receptor 1 epithelial mesenchymal transition 1 epithelial-to-mesenchymal transition 1 erlotinib 1 gefitinib 1