Fig. 4.
Treatment with the γ-secretase inhibitor DBZ reduced the ALDH-bright population in MEC cells. a Human MEC cells (H3118, UM-HMC-3B, and H292) were treated with various concentrations of DBZ for 72 h. The DBZ-treated cells were harvested for western blotting to analyze the levels of activated form of NOTCH1 (cleaved NOTCH1), the total NOTCH1, and HES1 proteins. b The number of the DBZ-treated cells were scored. c The DBZ-treated cells were assayed for the percentage of ALDHbr cells using an ALDEFLUOR™ Kit (ns, p > 0.05; *p < 0.05; **p < 0.01; ***p < 0.001)