Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (6): 765-770.doi: 10.3969/j.issn.2095-4344.2016.06.001

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Mechanism by which dihydroartemisinin inhibits invasion and migration of glioma stem cells

Wu Yan-lin1, Cai Zheng1, Zhang Ming-zhi2, Fu Xiao-rui2   

  1. 1Department of Oncology, Nanyang Centre Hospital, Nanyang 473000, Henan Province, China; 2Department of Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
  • Received:2016-01-02 Online:2016-02-05 Published:2016-02-05
  • About author:Wu Yan-lin, Attending physician, Department of Oncology, Nanyang Centre Hospital, Nanyang 473000, Henan Province, China
  • Supported by:

    the Major Scientific Funding Project of Henan Provincial Education Department, No. 13A320413

Abstract:

BACKGROUND: Dihydroartmisinin can promote apoptosis of glioma cells GL261, but its effect on glioma stem cells is still unknown.
OBJECTIVE: To investigate the preliminary mechanism that dihydroartemisinin inhibits migration and invasion of glioma stem cells.
METHODS: Glioma stem cells were isolated from mouse malignant glioma cell lines GL261. Immunofluorescence analysis was conducted to identify the characteristics of glioma stem cells. Migration and invasion abilities of glioma stem cells were analyzed by Transwell assay. The mRNA expressions of Toll-like receptor 2, matrix metalloproteinase-2 and matrix metalloproteinase-9 were examined by real-time fluorescence quantitative PCR.
RESULTS AND CONCLUSION: The characteristics of glioma stem cells were identified by CD133 and Nestin staining. The migration and invasion of glioma stem cells were attenuated by dihydroartemisinin dose-dependently. Moreover, the mRNA expression of Toll-like receptor 2, matrix metalloproteinase-2 and matrix metalloproteinase-9 was also decreased by dihydroartemisinin in a dose dependent manner. These results suggest that dihydroartemisinin inhibits the migration and invasion of glioma stem cells probably through attenuation of Toll-like receptor signaling pathway.