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Notch-1 and HES-1 expression is increased in MDA-MB-231 cells. (A) Notch-1 and HES-1 levels were assessed in four breast cancer cell lines by Western blot, with β-actin as a control. A rabbit monoclonal antibody against Notch-1 and HES-1 was used. Quantitative analysis of Notch-1 (B) and HES-1 (C) expression density is shown as values of mean ± SD. Data are representative of three independent experiments.
