MET and breast cancer: CAR-T cells target 19 antigens for breast cancer, most of which are cell-surface proteins and members of the RTK family: HER2, AXL, EGFR, ROR1, HGFR/cMET, MUC1, CD70, MSLN, CD133, EpCAM, CD44v6, CSGP4, TEM8, ICAM1, TROP2, NKG2D, FRα, GD2, and CEA.