Figure 6From: Hypericin-mediated photodynamic therapy induces apoptosis of myoloma SP2/0 cells depended on caspase activity in vitroCaspase-3 activity assay. SP2/0 cells were treated with hypericin (0.025 or 0.05 μM) for 16 hours. At 24 hour after 11.28 J/cm2 irradiation, caspase-3 activity was measured by colorimetric method. Y axis represents the caspase-3 activity (OD405nm of treated cells/ OD405nm of controls).Back to article page