RESUMEN
Objective:To investigate the effect of resveratrol on apoptosis of ovarian cancer cells and its molecular mechanism, and to find a potential new target for the treatment of ovarian cancer.Methods:Ovarian cancer SKOV-3 cells were divided into control group and resveratrol group.The survival rate of SKOV-3 cells treated with resveratrol was measured by MTT assay. 24 h after resveratrol intervention in SKOV-3 cells, Western blot was used to detect the expression of Bcl-2, Bax, Caspase-3, HMGB1, TLR4 and NF-?B. Ovarian cancer SKOV-3 cells were transfected with si-NC, si-HMGB1, Rb1+pcDNA3.1 or Rb1+pcDNA3.1-HMGB1, and the sensitivity of cells to resveratrol was detected by MTT assay. The transfected cells were treated with resveratrol and apoptosis was detected by flow cytometry.Results:Resveratrol could inhibit the growth of ovarian cancer SKOV-3 cells, and the higher the concentration of resveratrol, the more significant the inhibitory effect. The expression level of HMGB1 in control cells and resveratrol group was 1.24±0.15 and 0.86±0.11, respectively. 25μM resveratrol inhibited HMGB1 protein level ( P<0.01) . The sensitivity to resveratrol was increased after HMGB1 was downregulated, and the apoptosis of SKOV-3 cells was promoted. HMGB1 overexpression increased the resistance to resveratrol and inhibited the apoptosis of SKOV-3 cells. TLR4 expression quantity control and resveratrol cells were 0.98±0.12 and 0.63±0.08, amount of NF-?B expression were 1.21±0.14 and 0.45±0.07, 25 μM resveratrol could cut TLR4 and NF-?B protein levels. Conclusions:Resveratrol can promote apoptosis of ovarian cancer SKOV-3 cells. This mechanism may be related to the down-regulation of HMGB1/TLR4/NF-?B, which provides a basis for resveratrol treatment of ovarian cancer.