Figure 1. Effects of BBD24 on proliferation of human osteosarcoma cells and normal blood cells. Cells were treated with BBD24 at indicated concentrations for indicated times. Cell viability was measured by MTT assay. (A) IC50 of BBD24 and BBM on human osteosarcoma cells and normal blood cells (peripheral blood mononuclear cells, MBMNCs). (B, C) Cell viability of HOS and MG63 after treating with different concentrations of BBD24 and BBM for different times.