Abstract
Mutations in isocitrate dehydrogenases 1 and 2 (IDH1 and IDH2) have been shown to be present in most World Health Organization grade 2 and grade 3 gliomas in adults. These mutations are associated with the accumulation of 2-hydroxyglutarate (2HG) in the tumor. Here we report the noninvasive detection of 2HG by proton magnetic resonance spectroscopy (MRS). We developed and optimized the pulse sequence with numerical and phantom analyses for 2HG detection, and we estimated the concentrations of 2HG using spectral fitting in the tumors of 30 subjects. Detection of 2HG correlated with mutations in IDH1 or IDH2 and with increased levels of D-2HG by mass spectrometry of the resected tumors. Noninvasive detection of 2HG may prove to be a valuable diagnostic and prognostic biomarker.
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Change history
31 January 2012
In the version of this article initially published online, Craig R. Malloy’s name was incorrectly listed as Craig M. Malloy. Figure 2c was incorrectly labeled as a grade 4 oligodendroglioma; the correct labeling should be grade 2 oligodendroglioma. In reference 13, Ernest, R.R. should have been Ernst, R.R. In the Acknowledgments, one grant was missing: US National Institutes of Health grant RR0584. These errors have been corrected for all versions of this article.
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Acknowledgements
This work was supported by US National Institutes of Health grants RC1NS0760675, R21CA159128 and RR02584 and by the Cancer Prevention Research Institute of Texas grant RP101243-P04. We thank C. Sheppard for expert management of the patient database and for coordinating research scans and tissue samples; S. McNeil for expert human subject care during scanning; C. Foong for expert assistance with pathological analysis of tumor; and R.L. Boriack for expert assistance with 2HG measurements by mass spectrometry.
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C.C. developed the MRS methodology for 2HG detection, designed and performed the magnetic resonance experiments and data analysis, supervised the MRS study, prepared figures and wrote the manuscript. E.A.M. led all aspects of the human study, contributed to data analysis, preparation of the figures and writing of the manuscript. S.K.G. carried out magnetic resonance data acquisition and contributed to data analysis. D.R. performed mass spectrometry analysis on resected tumors and contributed to manuscript preparation. Z.K. synthesized 2HG and prepared a figure. R.J.D. and C.R.M. contributed to the conceptual approach, review of the data and manuscript preparation. K.J.H. and J.M.R. contributed to tumor sample collection and validation, neuropathological evaluation and diagnosis, evaluation of immunohistochemical stains and manuscript preparation. X.-L.Y. and T.M. performed the tissue evaluation of IDH mutations. I.M.-V. and J.M.P. contributed to conceptual analysis. B.E.M. recruited subjects and contributed to clinical data analysis and manuscript preparation. C.J.M. recruited subjects and contributed to manuscript preparation. R.M.B. contributed to the conceptual approach, led the tumor analysis workup, and contributed to data analysis and manuscript preparation.
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Choi, C., Ganji, S., DeBerardinis, R. et al. 2-hydroxyglutarate detection by magnetic resonance spectroscopy in IDH-mutated patients with gliomas. Nat Med 18, 624–629 (2012). https://doi.org/10.1038/nm.2682
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DOI: https://doi.org/10.1038/nm.2682