Figure 3From: Oleanane triterpenoid CDDO-Me induces apoptosis in multidrug resistant osteosarcoma cells through inhibition of Stat3 pathway Caspase-3/7 activity was measured as a second parameter of apoptotic cell death. KHOS and KHOSR2 showed significant increase in apoptosis when they were treated with increasing concentrations of CDDO-Me. The experiment was repeated three times in triplicate.Back to article page