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. 2017 May 9;88(19):1805–1813. doi: 10.1212/WNL.0000000000003911

Figure 4. Proposed proseizure effect of isocitrate dehydrogenase 1 (IDH1mut) glioma cells.

Figure 4

IDH1mut glioma cells infiltrate gray matter and track along neurons. The d-2-hydroxyglutarate (D2HG) product of the mutant IDH1 enzyme is released by tumor cells and activates neuronal NMDA receptors, thereby creating excitatory postsynaptic potentials and increasing the likelihood of action potentials.