Figure 1.

Notch-1 Expression in GBM cell lines. Real time RT-PCR and Western blot analysis (A and B, respectively) for Notch-1 in U87MG and in U251MG cells (C and D, respectively) cultured in the absence or presence of 100 μM APE for 24 and 48 h. Representative blots are shown from three independent experiments. GAPDH was used as the internal reference protein (* p < 0.05, ** p < 0.01).