Journal of Jilin University Medicine Edition ›› 2016, Vol. 42 ›› Issue (02): 266-270.doi: 10.13481/j.1671-587x.20160215

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Inhibitory effect of dihydroartemisinin on growth of neuroblastoma cells and its mechanism

QI Ling1, YANG Yang1, LIU Yucui1, ZHU Tianxin1, JIN Song1, ZANG Lin1, ZHANG Yuying1, LYU Peng1, XU Ye2   

  1. 1. Department of Pathology, Jilin Medical University, Jilin 132013, China;
    2. Medical Research Laboratory, Jilin Medical University, Jilin 132013, China
  • Received:2015-09-15 Published:2016-03-31

Abstract:

Objective: To explore the inhibitory effect of dihydroartemisinin (DHA) on the growth of neuroblastoma cells, and to clarify the anti-tumor mechanism of DHA.Methods: The experiment was divided into blank control group and DHA groups (the final concentrations of DHA were 0.05, 0.50, 5.00 and 50.00 μmol·L-1).The proliferation rates of neuroblastoma SH-SY5Y cells after treated with DHA were examined by MTT assay; the changes of cell cycle of SH-SY5Y cells after treated with DHA were examined by flow cytometry;the expression levels of cyclin D1 and caspase-3 proteins were detected by ELISA and Western blotting methods.Results: The proliferation of SH-SY5Y cells 24, 48, and 72 h after treated with different concentrations of DHA were inhibited.Compared with blank control group, the proliferation rates of SH-SY5Y cells in 0.50, 5.00 and 50.00 μmol·L-1DHA groups were significantly decreased(P<0.05 or P<0.01).The density of cells was decreased with the increasing of DHA concentration.Compared with blank control group, the percentage of SH-SY5Y cells at SubG1 phase in 50.00 μmol·L-1 DHA group was increased(P<0.05), and the percentage of cells at G0/G1 phase was increased first then was decreased; otherwise, the percentages of cells at S and G2/M phase were decreased.Compared with blank control group, the expression level of cyclin D1 protein in 50.00 μmol·L-1 DHA group was decreased(P<0.05), but the expression level of caspase-3 protein in 50.00 μmol·L-1 DHA group was increased(P<0.05).Conclusion: DHA could inhibit the proliferation through arresting the cell cycle and inducing the apoptosis of neuroblastoma cells.

Key words: dihydroartemisinin, neuroblastoma cells, cyclin D1, caspase-3

CLC Number: 

  • R739.4