Carcinogenesis, Teratogenesis & Mutagenesis ›› 2017, Vol. 29 ›› Issue (2): 96-101.doi: 10.3969/j.issn.1004-616x.2017.02.004

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Effect of cinobufacini on chemotherapy sensitivity and toxicity of human esophageal carcinoma cells in vitro

YANG Xingxiao1, MA Ming2, SHAN Baoen3, LI Youmei4, SONG Heng4, LIU Zhikun4, ZHU Shuchai4   

  1. 1. Department of Infection Management, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang 050011;
    2. Department of Laboratory, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang 050011;
    3. Research Centre, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang 050011;
    4. Department of Radiation Oncology, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei, China
  • Received:2016-08-24 Revised:2016-12-12 Online:2017-03-31 Published:2017-03-31

Abstract:

OBJECTIVE: To investigate the effects of cinobufacini on proliferation,invasion and chemotherapy sensitivity of human esophageal carcinoma,and to analyze its impact on epithelial-mesenchymal transition and its mechanism. METHODS: The effects of cinobufacini on proliferation and chemotherapy sensitivity of human esophagus cancer ECA109 cells were measured by the methyl thiazolyl tetrazolium (MTT) assay. After treatment with cinobufacini,cell apoptosis was analyzed and chemotherapy sensitivity by flow cytometry (FCW). In addition,transwell assay was employed to examine viability,migration and invasion. The effects of cinobufacini on invasion,epithelial-mesenchymal transition of ECA109 and multidrug resistance (MDR)-related proteins were examined by Western blot assay. RESULTS: Cinobufacini treatment significantly inhibited ECA109 cell proliferation in both time- and dose-dependent ways (r=0.985,P=0.000;r=0.988,P=0.000),and enhanced chemotherapy sensitivity compared to that in the control group (P=0.000). Cell migration and invasion were significantly suppressed (both P=0.000). In addition,the treatment also down-regulated the expression levels of Snail,Twist,MMP2,Vimentin and P-gp,but up-regulated the expression of E-cadherin. CONCLUSION: Cinobufacini effectively inhibited the proliferation and invasion of human esophageal carcinoma ECA109 cell,and enhance its chemotherapy sensitivity in culture. The mechanism might be partly related to the inhibition epithelial-mesenchymal transition by cinobufacini.

Key words: cinobufacini, chemotherapy sensitivity, epithelial-mesenchymal transition, proliferation, invasion

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