Dec1 expression predicts prognosis and the response to temozolomide chemotherapy in patients with glioma

  • Authors:
    • Xiao‑Ming Li
    • Wei Lin
    • Jiang Wang
    • Wei Zhang
    • An‑An Yin
    • Yi Huang
    • Jian Zhang
    • Libo Yao
    • Huan Bian
    • Jing Zhang
    • Xiang Zhang
  • View Affiliations

  • Published online on: November 3, 2016     https://doi.org/10.3892/mmr.2016.5921
  • Pages: 5626-5636
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Abstract

Differentiated embryo chondrocyte expressed gene 1 (Dec1), a crucial cell differentiation mediator and apoptosis inhibitor, is abundantly expressed in various types of human cancer and is associated with malignant tumor progression. As poor differentiation and low apoptosis are closely associated with poor survival rates and a poor response to radio/chemotherapy in patients with cancer, the prognostic value of Dec1 expression was examined in the present study and its correlation with response to temozolomide (TMZ) chemotherapy was analyzed in patients with glioma. Dec1 expression was analyzed by immunohistochemistry in 157 samples of newly diagnosed glioma and 63 recurrent glioblastoma cases that relapsed during TMZ chemotherapy. Correlations with clinical variables, prognosis and the response to TMZ chemotherapy were analyzed in the newly diagnosed gliomas. Dec1 expression was also compared with the apoptosis index determined by TdT‑mediated dUTP nick ending‑labeling assay in recurrent glioblastomas. The antiglioma effect of TMZ in nude mice xenografts with Dec1 expression was examined in vivo. High expression of Dec1, which was significantly associated with high pathological tumor grade and poor response to TMZ chemotherapy, was demonstrated to be an unfavorable independent prognostic factor and predicted poor survival in patients with newly diagnosed glioma. In patients with recurrent glioblastoma, there was a negative correlation between Dec1 expression and the apoptotic index. In nude mice treated with TMZ, Dec1 overexpression potentiated proliferation, but attenuated TMZ‑induced apoptosis. In conclusion, Dec1 is a prognostic factor for the clinical outcome and a predictive factor for the response to TMZ chemotherapy in patients with glioma.
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December-2016
Volume 14 Issue 6

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Li XM, Lin W, Wang J, Zhang W, Yin AA, Huang Y, Zhang J, Yao L, Bian H, Zhang J, Zhang J, et al: Dec1 expression predicts prognosis and the response to temozolomide chemotherapy in patients with glioma. Mol Med Rep 14: 5626-5636, 2016
APA
Li, X., Lin, W., Wang, J., Zhang, W., Yin, A., Huang, Y. ... Zhang, X. (2016). Dec1 expression predicts prognosis and the response to temozolomide chemotherapy in patients with glioma. Molecular Medicine Reports, 14, 5626-5636. https://doi.org/10.3892/mmr.2016.5921
MLA
Li, X., Lin, W., Wang, J., Zhang, W., Yin, A., Huang, Y., Zhang, J., Yao, L., Bian, H., Zhang, J., Zhang, X."Dec1 expression predicts prognosis and the response to temozolomide chemotherapy in patients with glioma". Molecular Medicine Reports 14.6 (2016): 5626-5636.
Chicago
Li, X., Lin, W., Wang, J., Zhang, W., Yin, A., Huang, Y., Zhang, J., Yao, L., Bian, H., Zhang, J., Zhang, X."Dec1 expression predicts prognosis and the response to temozolomide chemotherapy in patients with glioma". Molecular Medicine Reports 14, no. 6 (2016): 5626-5636. https://doi.org/10.3892/mmr.2016.5921