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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2017, Vol. 22 ›› Issue (12): 1364-1370.

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Study on the cisplatin-sensitization effect of tripterygium glycosides on cisplatin-resistant human epithelial ovarian cancer cells (SKOV3/DDP) in vitro

LIU Wencheng 1,TAN Buzhen 1,ZHAN Xinlu 1,HU Hui 1,HUANG Genhua 1,CAO Qing 2   

  1. 1 Department of Obstetrics and Gynecology, Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China; 2 Molecular Experiment Center, Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
  • Received:2017-04-18 Revised:2017-07-26 Online:2017-12-26 Published:2018-01-02

Abstract:

AIM: To study the cisplatin-sensitization effect and mechanism of tripterygium glycosides on cisplatin-resistant human epithelial ovarian cancer cells (SKOV3/DDP).  METHODS: The SKOV3/DDP cells in exponential phase of growth were randomly divided into eight groups:blank control group, 10 μg/mL DDP group, 50 μg/mL GTW group, 800 μg/mL GTW group, 3 200 μg/mL GTW group, 10 μg/mL DDP+50 μg/mL GTW group, 10 μg/mL DDP+800 μg/mL GTW group and 10 μg/mL DDP+3 200 μg/mL GTW group. Cell counting kit 8 and flow cytometry and western blot were used to detect the growth inhibiting rate and apoptosis rate and relative expression of GST-π, MDR1, STAT3, p-STAT3 of SKOV3/DDP cells of every group. RESULTS:DDP and GTW produce an additive effect when used concurrently in inhibiting growth of SKOV3/DDP cells. 800 μg/mL GTW or 3 200 μg/mL GTW combined with 10 μg/mL DDP can significantly induce apoptosis of SKOV3/DDP cells and down-regulate the expression of p-STAT3 (P<0.05). CONCLUSION: GTW can significantly enhance sensitivity of SKOV3/DDP cells to DDP. The underlying mechanism may be related with down-regulating the expression of p-STAT3 in STAT3 pathway.

Key words: tripterygium glycosides, SKOV3/DDP, cisplatin, cisplatin-sensitization effect, STAT3

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