Figure 2From: Role of oxidative stress and intracellular glutathione in the sensitivity to apoptosis induced by proteasome inhibitor in thyroid cancer cells Alteration of glutathione upon bortezomib exposure. Cells were treated with 50 nM bortezomib for the indicated time, intracellular GSH (A) and GSSG (B) levels were measured. ** P < 0.001 vs 0 hour treatment.Back to article page