Figure 6From: The cytotoxicity of γ-secretase inhibitor I to breast cancer cells is mediated by proteasome inhibition, not by γ-secretase inhibitionNo additive effect from the combination of γ-secretase inhibition and proteasome inhibiton. Cells were exposed to increasing concentrations of lactacystin with or without 5 μM of DAPT for 72 hours and cell growth was measured by MTS assay. Results represent the mean ± standard deviation of three independent experiments.Back to article page