Figure 4From: Apoptosis induction associated with the ER stress response through up-regulation of JNK in HeLa cells by gambogic acidEffect of GA on cell morphological changes. HeLa cells were treated with 0.3 μg/ml of GA for 0, 8, 16 and 24 h. Cells were stained with Hoechst33342 and examined under a bright-field and fluorescence microscope (40X magnification). The arrows show cell morphological changes of apoptotic cells.Back to article page