Effect of Toosendanin on the Apoptosis of Human Ovarian Cancer Cells Through Mitochondrial Pathway / 中国药学杂志

ABSTRACT

OBJECTIVE: To study the effect of toosendanin (TSN)on the apoptosis of human ovarian cancer cell and to clarify the related mechanism. METHODS: CAVO-3 and A2870 cells were treated with toosendanin of different concentrations, and CCK-8 method was used to detect the cell survival rate, colorimetric method was used to measure the activities of Caspase-3 and Caspase-9, EdU method was used to determine the cell proliferation rate, and Western blot method was used to test the expressions of Bcl-2, Bax and Cyto-C protein. RESULTS: TSN could significantly inhibit the survival of CAVO-3 and A2870 cells with dose-(r=0.869 1, P<0.05) and time-(r=0.776 5, P<0.05) dependent manners. The survival rate of A2870 cell with TSN dropped significantly (P<0.05). The activities of Caspase-3 and Caspase-9 were significantly increased by TSN in CAVO-3 and A2870 cells, however, the inhibitors of Caspase-3 (z-DEVE-FMK) and Caspase-9 (z-LEHD-FMK) could reverse those effect of TSN (P<0.05) and also reverse the survival rates of CAVO-3 and A2870 cells (P<0.05). In addition, TSN could increase the expression of Bcl-2, Bax and Cyto-C protein in A2870 cells notably, which could be reversed mostly by Caspase-9 inhibitor (z-LEHD-FMK)(P<0.05). CONCLUSION: TSN could induce the apoptosis in human ovarian cancer cell through up-regulating the activities of Caspase-3 and Caspase-9, and then activates the mitochondrial pathway.