TFRC and cancer: At present, other cancer specific promoters have been studied, among them is epidermal growth factor receptor (EGFR), human epidermal growth factor receptor/neu (HER2/NEU), vascular endothelial growth factor receptor (VEGFR), folate receptor (FR), transferrin receptor (CD71), mucines, tumor resistance antigen 1-60 (TRA-1-60), cyclooxygenase (COX), cytokeratin 18, cytokeratin 19, survivin and chimeric antigen receptors (CAR) (82, 91–93).