Figure 6From: Apoptosis induction associated with the ER stress response through up-regulation of JNK in HeLa cells by gambogic acidEffect of GA on MAPK pathway in HeLa cells. HeLa cells were treated with 0.3 μg/ml of GA for the indicated time points. The expression of phosphorylated and total ERK1/2, JNK and p38 were analyzed by Western blotting and were expressed relative to the protein level at 0 h after normalization to β-actin signals.Back to article page