Table 1.

The IC₅₀ value of DK 1 on osteosarcoma cell lines (MG-63 and U-2OS) and normal fibroblast cell line to be used in other assays.

Cell Lines	IC50 (µM)
MG-63	23.8 ± 0.8
U-2OS	19.6 ± 0.3
3T3	>30

Notes: Cytotoxicity effects of DK1 on osteosarcoma cell lines and normal fibroblast cell line. The IC₅₀ values of DK1 in MG-63 and U-2OS at 48 h post-treatment. The IC₅₀ value for 3T3 after treated with DK1 for 48 h. All data were expressed as mean ± standard error mean (S.E.M).