Biological Role and Therapeutic Potential of IDH Mutations in Cancer.
Hotspot mutations in isocitrate dehydrogenase 1 (IDH1) and isocitrate dehydrogenase 2 (IDH2) occur in a variety of myeloid malignancies and solid tumors. Mutant IDH proteins acquire a neomorphic enzyme activity to produce the putative oncometabolite D-2-hydroxyglutarate, which is thought to block cellular differentiation by competitively inhibiting α-ketoglutarate-dependent dioxygenases involved in histone and DNA demethylation. Small-molecule inhibitors of mutant IDH1 and IDH2 have been developed and are progressing through pre-clinical and clinical development. In this review, we provide an overview of mutant IDH-targeted therapy and discuss a number of important recent pre-clinical studies using models of IDH-mutant solid tumors.
Waitkus, MS; Diplas, BH; Yan, H
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