Figure 1. Overexpression of EGFR in TNBC cells. (A) MDA-MB-231 (B) and MDA-MB-468 cells were transfected with lenti-EGFR for 72 h. The transfection efficacy of the cells was observed under a fluorescent microscope (×200 magnification). (C–F) The expression of EGFR in MDA-MB-231 and MDA-MB-468 cells was analyzed by Western blotting. **P < 0.01 compared with the vector-control group.