Description
Epithelial tumors can progress from a benign tissue overgrowth (hyperplasia) to a malignant neoplastic tumor, which is characterized by an increase in motility and invasiveness. The Cohen laboratory has developed an epithelial tumor model in which overexpression of the epidermal growth factor receptor gene (EGFR) leads to benign tissue hyperplasia. When combined with other cooperating factors, EGFR overexpression can lead to neoplasia and malignant metastasis.