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International Journal of Molecular Medicine

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International Journal of Oncology is an international journal devoted to oncology research and cancer treatment.

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Article

Expression of p53, epidermal growth factor receptor, Ki-67 and O6‑methylguanine‑DNA methyltransferase in human gliomas

  • Authors:
    • Xinhua Hu
    • Wei Miao
    • Yuanjie Zou
    • Wenbin Zhang
    • Yansong Zhang
    • Hongyi Liu
  • View Affiliations / Copyright

    Affiliations: Department of Neurosurgery, Brain Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China, Department of Neurosurgery, Zhongda Hospital, Southeast University, Nanjing, Jiangsu 210029, P.R. China
  • Pages: 130-134
    |
    Published online on: April 24, 2013
       https://doi.org/10.3892/ol.2013.1317
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Abstract

The present study aimed to evaluate the expression of p53, Ki‑67, epidermal growth factor receptor (EGFR) and O6‑methylguanine‑DNA methyltransferase (MGMT), and to analyze the correlation between their expression and the histological grade of the tumors in 152 patients with gliomas. The tumors were classified according to the recommendations of the World Health Organization (WHO; 2007) into grade I (n=9), grade II (n=56), grade III (n=52) and grade IV (n=35). The expression of p53, Ki‑67, EGFR and MGMT was analyzed using immunohistochemistry. The frequency of p53 immunopositivity was significantly lower in grade I gliomas than in grades II, III and IV. The frequency of EGFR immunopositivity was significantly higher in grade III and IV gliomas compared with grades I and II. The mean Ki‑67 labelling index (LI) significantly increased in the higher glioma grades. The expression of MGMT in grade I and II tumors was not significantly different from that of grade III and IV tumors. The present data indicate that the expression of EGFR and Ki‑67 is significantly correlated with the histological grade of the glioma, but that the expression of p53 and MGMT is not associated with the tumor grade.
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Copy and paste a formatted citation
Spandidos Publications style
Hu X, Miao W, Zou Y, Zhang W, Zhang Y and Liu H: Expression of p53, epidermal growth factor receptor, Ki-67 and O6‑methylguanine‑DNA methyltransferase in human gliomas. Oncol Lett 6: 130-134, 2013.
APA
Hu, X., Miao, W., Zou, Y., Zhang, W., Zhang, Y., & Liu, H. (2013). Expression of p53, epidermal growth factor receptor, Ki-67 and O6‑methylguanine‑DNA methyltransferase in human gliomas. Oncology Letters, 6, 130-134. https://doi.org/10.3892/ol.2013.1317
MLA
Hu, X., Miao, W., Zou, Y., Zhang, W., Zhang, Y., Liu, H."Expression of p53, epidermal growth factor receptor, Ki-67 and O6‑methylguanine‑DNA methyltransferase in human gliomas". Oncology Letters 6.1 (2013): 130-134.
Chicago
Hu, X., Miao, W., Zou, Y., Zhang, W., Zhang, Y., Liu, H."Expression of p53, epidermal growth factor receptor, Ki-67 and O6‑methylguanine‑DNA methyltransferase in human gliomas". Oncology Letters 6, no. 1 (2013): 130-134. https://doi.org/10.3892/ol.2013.1317
Copy and paste a formatted citation
x
Spandidos Publications style
Hu X, Miao W, Zou Y, Zhang W, Zhang Y and Liu H: Expression of p53, epidermal growth factor receptor, Ki-67 and O6‑methylguanine‑DNA methyltransferase in human gliomas. Oncol Lett 6: 130-134, 2013.
APA
Hu, X., Miao, W., Zou, Y., Zhang, W., Zhang, Y., & Liu, H. (2013). Expression of p53, epidermal growth factor receptor, Ki-67 and O6‑methylguanine‑DNA methyltransferase in human gliomas. Oncology Letters, 6, 130-134. https://doi.org/10.3892/ol.2013.1317
MLA
Hu, X., Miao, W., Zou, Y., Zhang, W., Zhang, Y., Liu, H."Expression of p53, epidermal growth factor receptor, Ki-67 and O6‑methylguanine‑DNA methyltransferase in human gliomas". Oncology Letters 6.1 (2013): 130-134.
Chicago
Hu, X., Miao, W., Zou, Y., Zhang, W., Zhang, Y., Liu, H."Expression of p53, epidermal growth factor receptor, Ki-67 and O6‑methylguanine‑DNA methyltransferase in human gliomas". Oncology Letters 6, no. 1 (2013): 130-134. https://doi.org/10.3892/ol.2013.1317
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