IDH mutations occur frequently in Chinese glioma patients and predict longer survival but not response to concomitant chemoradiotherapy in anaplastic gliomas

  • Authors:
    • Song-Τao Qi
    • Lei Yu
    • Yun-Tao Lu
    • Yang-Hui Ou
    • Zhi-Yong Li
    • Lan-Xiao Wu
    • Fei Yao
  • View Affiliations

  • Published online on: August 19, 2011     https://doi.org/10.3892/or.2011.1428
  • Pages: 1479-1485
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Abstract

Mutations in the isocitrate dehydrogenase 1 and 2 genes (IDH1 and IDH2) appear to occur frequently and selectively in gliomas. Our aim was to assess whether IDH mutations are common in Chinese glioma patients and whether the mutations predict good response to concomitant chemoradiotherapy. In this study IDH1 and IDH2 mutations were detected in a series of 203 gliomas. IDH1 mutations were present in 75 of the 203 cases (36.9%) while IDH2 mutations in 5 of the 203 cases (2.5%). No tumor was mutated in both IDH1 and IDH2. IDH1/2 mutations were associated with prolonged overall survival in the whole series of patients exclusive of pilocytic astrocytoma (P<0.001), WHO grade Ⅱ patients who received no adjuvant therapy after surgery (P=0.014) and WHO grade Ⅲ patients who received concomitant chemoradiotherapy (standard schedule) after surgery (P=0.033). Furthermore, there was no correlation between IDH1/2 mutations and reponse to concomitant chemoradiotherapy in anaplastic gliomas. Our results suggest that IDH1 mutations also occur freuqently in Chinese glioma patients but the frequency of IDH1 mutations is below the findings reported by North American and European groups. Furthermore, we confirm the prognostic significance of IDH1/2 mutations in gliomas, but the mutations cannot predict a favorable response to concomitant chemoradiotherapy in anaplastic gliomas.

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December 2011
Volume 26 Issue 6

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Qi S, Yu L, Lu Y, Ou Y, Li Z, Wu L and Yao F: IDH mutations occur frequently in Chinese glioma patients and predict longer survival but not response to concomitant chemoradiotherapy in anaplastic gliomas. Oncol Rep 26: 1479-1485, 2011
APA
Qi, S., Yu, L., Lu, Y., Ou, Y., Li, Z., Wu, L., & Yao, F. (2011). IDH mutations occur frequently in Chinese glioma patients and predict longer survival but not response to concomitant chemoradiotherapy in anaplastic gliomas. Oncology Reports, 26, 1479-1485. https://doi.org/10.3892/or.2011.1428
MLA
Qi, S., Yu, L., Lu, Y., Ou, Y., Li, Z., Wu, L., Yao, F."IDH mutations occur frequently in Chinese glioma patients and predict longer survival but not response to concomitant chemoradiotherapy in anaplastic gliomas". Oncology Reports 26.6 (2011): 1479-1485.
Chicago
Qi, S., Yu, L., Lu, Y., Ou, Y., Li, Z., Wu, L., Yao, F."IDH mutations occur frequently in Chinese glioma patients and predict longer survival but not response to concomitant chemoradiotherapy in anaplastic gliomas". Oncology Reports 26, no. 6 (2011): 1479-1485. https://doi.org/10.3892/or.2011.1428