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Isocitrate Dehydrogenase 1 Codon 132 Mutation Is an Important Prognostic Biomarker in Gliomas

Open access
Sanson, Marc, Marie, Yannick, Paris, Sophie, Idbaih, Ahmed, Laffaire, Julien, Ducray, François, El Hallani, Soufiane, Boisselier, Blandine, Mokhtari, Karima, Hoang-Xuan, Khe, Delattre, Jean-Yves·2009·Journal of Clinical Oncology

Abstract

Purpose: Unexpected mutations affecting the isocitrate dehydrogenase (IDH1) gene at codon 132 have been found in 12% of glioblastomas. Patients and Methods: IDH1 codon 132 sequencing was performed in a series of 404 patients with glioma (100 grade 2, 121 grade 3, and 183 grade 4 gliomas) and correlated with histology, genomic profile, methylguanyl methyltransferase (MGMT) promoter methylation status, and outcome. Results: A total of 155 codon 132 mutations were found, of which 131 were Arg132His (88.5%). The IDH1 mutation was inversely correlated with grade, affecting 77% of grade 2, 55% of grade 3, and 6% of grade 4 gliomas (P < 10 −15 ). The IDH1 mutation was tightly associated with a 1p19q codeleted genotype (P < 10 −14 ) and an MGMT methylated status (P < .001) but mutually exclusive with EGFR amplification (P < 10 −15 ) and loss of chromosome 10 (P < 10 −15 ). The presence (v absence) of IDH1 mutation was associated with a better outcome in grade 2 (150.9 v 60.1 months, respectively; P = .01), grade 3 (81.1 v 19.4 months, respectively; P < .001), and grade 4 gliomas (27.4 v 14 months, respectively; P < .01). After adjustment for grade, age, MGMT status, genomic profile, and treatment, multivariate analysis confirmed that IDH1 mutation was an independent favorable prognostic marker (hazard ratio = 0.297; 95% CI, 0.157 to 0.564, P = .00021). Conclusion: This study indicates that IDH1 codon 132 mutation is closely linked to the genomic profile of the tumor and constitutes an important prognostic marker in grade 2 to 4 gliomas.

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Metadata

Authors
Sanson, M., Marie, Y., Paris, S., Idbaih, A., Laffaire, J., Ducray, F., El Hallani, S., Boisselier, B., Mokhtari, K., Hoang-Xuan, K., & Delattre, J.-Y.
Venue
Journal of Clinical Oncology
Published
2009-09-01
Volume
27
Issue
25
Pages
4150-4154
ISSN
  • 0732-183X (ISSN-L)
  • 1527-7755
OpenAlex
W2143078369
Cited by
1,008
References
12
FWCI
35.59
Type
journal article
Language
en
Open access
bronze

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Sanson, M., Marie, Y., Paris, S., Idbaih, A., Laffaire, J., Ducray, F., El Hallani, S., Boisselier, B., Mokhtari, K., Hoang-Xuan, K., & Delattre, J.-Y. (2009). Isocitrate Dehydrogenase 1 Codon 132 Mutation Is an Important Prognostic Biomarker in Gliomas. Journal of Clinical Oncology. https://doi.org/10.1200/jco.2009.21.9832

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