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Abstract #0189

Detecting & Quantifying 2HG & Alterations in Metabolite Profiles in IDH1/2 Mutation Bearing Brain Tumors by Solid State HRMAS NMR

Liya Wang1, Anne Carroll2, Juliya Kalinina3, Erwin Van Meir3, Qiqi Yu1, Junjun Tan2, Ruya Zhao2, Frank Liu4, Shaoxiong Wu4, Hui Mao5

1Radiology, Emory University School of Medicine, Atlanta, GA, United States; 2Chemistry, Emory University, Atlanta, GA, United States; 3Neurosurgery, Emory University School of Medicine, Atlanta, GA, United States; 4NMR Center, Emory University, Atlanta, GA, United States; 5Radiology, Emory University, Atlanta, GA, United States

Solid state high resolution (HR) magic angle spinning (MAS) NMR methods were used to identify the spectroscopic finger print of 2HG in brain tumor tissues to confirm that 2HG is the metabolite marker of IDH mutations. The metabolite profiles of gliomas with and without IDH mutations are investigated quantitatively. The results confirmed that 2HG is a highly specific metabolite marker of IDH mutations in gliomas. In addition, HRMAS NMR analysis provided quantitative metabolite analysis that revealed the altered metabolite profile in tumors bearing with IDH mutations

Keywords

abnormal acid acquisition activities added addition alterations altered amount analyses analyzed antibodies approaches arising association bearing bell brain cancer capable cells chemistry choline clinically collection comparing compounds concentration concentrations confirm confirmed confirming correlated correlations coupled coupling cross delay detect detectable detecting detection diffusely dimensional discovery divided either elevated embedded evaluated expressing external fixed formalin frank frequency function glutamate grade grades harboring highly hours identified identify immune important in vivo include instruments intensive invasive investigate leads likely lipid magic marker matrix medicine metabolic metabolism metabolite metabolites might mixture mutants mutated mutation mutations nature negative neurosurgery observations paraffin pattern patterns positive previous print probe productions profile profiles prognostic protein protons quantifying quantitative quantitatively radiology recent reductions relate related representative resolution respectively revealed sample samples school sensitivity several since sine solid specificity spectra spectral spectrometer spectroscopic spectroscopy spectrum spinning square stained statistically status strong tissue tissues transformation transients tumor tumors unique utilizing verification whether width zero