Figure 1. EGFR expression in breast cancer cell lines. EGFR expression in TNBC cell lines (HS578T, MDA-MB-468, and MDA-MB-231) and MCF-7 cells detected by (A) real-time RT PCR, (B) Western blot, and (C) flow cytometry. Error bars represent means ± SEM. T-tests were used for statistical analysis; ***p < 0.001.