Chinese Journal of Tissue Engineering Research ›› 2013, Vol. 17 ›› Issue (19): 3455-3460.doi: 10.3969/j.issn.2095-4344.2013.19.006

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In vitro radiosensitivity of brain cancer stem cells in brain glioma

Zhao Zhong-fu1, 2, Fan Rui-tai3, Yang Yong4, Sun Jian-rui2, Hu Xiang5, Eileen Shen6, Yang Bo2, 7   

  1. 1 Department of Neurosurgery, Xuchang Central Hospital, Xuchang  461000, Henan Province, China
    2 Department of Neurosurgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou  450052, Henan Province, China
    3 Radiotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou  450052, Henan Province, China
    4 Wei Erke Stem Cell Biotechnology (Liaoning) Co., Ltd., Benxi  117003, Liaoning Province, China
    5 Shenzhen Beike Cell Engineering Institute, Shenzhen  518000, Guangdong Province, China
    6 Dickinson College, Carlisle, PA 17013, U.S.A
    7 Open Laboratory of Key Clinical Disciplines of Henan Province Higher Education, Zhengzhou  450052, Henan Province, China
  • Received:2012-09-16 Revised:2012-12-08 Online:2013-05-07 Published:2013-05-07
  • Contact: : Yang Bo, M.D., Professor, Doctoral supervisor, Department of Neurosurgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China; Open Laboratory of Key Clinical Disciplines of Henan Province Higher Education, Zhengzhou 450052, Henan Province, China yangbo96@126.com
  • About author:Zhao Zhong-fu★, Master, Chief physician, Department of Neurosurgery, Xuchang Central Hospital, Xuchang 461000, Henan Province, China; Department of Neurosurgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China zzf20041986@126.com Fan Rui-tai☆, M.D., Chief physician, Professor, Doctoral supervisor, Radiotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China Zhan Zhong-fu and Fan Rui-tai contributed equally to this paper.
  • Supported by:

    Key Science and Technology Program of Henan Science and Technology Department, No. 112102310173*; Innovative Research Team-Building Foundation of the First Affiliated Hospital of Zhengzhou University, No. TD2011023*

Abstract:

BACKGROUND: Radiotherapy effect on of brain glioma is not ideal, and there are various possible factors that influence the therapeutic effect.
OBJECTIVE: To investigate the in vitro radiosensitivity of brain cancer stem cells in brain glioma.
METHODS: Glioma cells were isolated and seeded into the serum-free medium containing growth factors for culture. Glioma cells from the most active cell site were subcultured to 3-5 generations. Glioma cell vitality was assessed to determine the optimal dose of X-ray radiation.
RESULTS AND CONCLUSION: Distinct difference in activities of proliferation could be found among cancer stem cells from different sites of glioma. X-ray dosages above 8 Gy had notable killing effect on brain cancer stem cells. Different irradiation dosage had different influence on cancer stem cells.

Key words: stem cells, tumor stem cells, brain cancer stem cells, glioma, growth factors, radiosensitivity, radiotherapy, irradiation, dose, individual positioning, proliferation activity, provincial grants-supported paper

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