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Abstract Title:

Synergistic effect of cucurbitacin B in combination with curcumin via Enhancing apoptosis induction and reversing multidrug resistance in Human hepatoma cells.

Abstract Source:

Eur J Pharmacol. 2015 Oct 6. Epub 2015 Oct 6. PMID: 26452516

Abstract Author(s):

Yuqi Sun, Jie Zhang, Jiaying Zhou, Ziyuan Huang, Haiyang Hu, Mingxi Qiao, Xiuli Zhao, Dawei Chen

Article Affiliation:

Yuqi Sun

Abstract:

Cucurbitacin B is a plant-derived tetracyclic triterpenoid, which has been used for a variety of cancers, especially human hepatoma. Curcumin, isolated from a plant Curcuma longa also has found the anti-tumor property. In the present study, the synergistic effect of cucurbitacin B and curcumin was studied on BEL7402/5-Fu cells in vitro and BEL7402 tumor-bearing mice in vivo. The synergistic anticancer activity of these two compounds involves the two mechanisms. Firstly, curcumin synergistically enhanced the apoptosis of BEL7402/5-Fu cells induced by cucurbitacin B in the optimal mass ratio of 2:1 (cucurbitacin B: curcumin). The mechanism may result from the cell arresting in different phases of cell cycles and the apoptotic change of ultrastructure in BEL7402/5-Fu cells. Secondly, curcumin reversed the multidrug resistance (MDR) caused by cucurbitacin B in the optimized concentration of 67.9μM (25μg/ml). The mechanism was associated with the P-gp reduction, ΔΨm collapse and mitochondrial colocalization in BEL7402/5-Fu cells. The findings were consistent with the changes of the body weight and tumor volume, caspase3 activation and ATP down-regulation in vivo. In conclusion, cucurbitacin B in the combination with curcumin could serve as a novel, promising approach for human hepatoma.

Study Type : Human In Vitro

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