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Review
. 2022 Jan;70(1):83-97.
doi: 10.1369/00221554211062499.

IDH1/2 Mutations in Cancer Stem Cells and Their Implications for Differentiation Therapy

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Review

IDH1/2 Mutations in Cancer Stem Cells and Their Implications for Differentiation Therapy

Remco J Molenaar et al. J Histochem Cytochem. 2022 Jan.

Abstract

Isocitrate dehydrogenase 1 and 2 (IDH1/2) are enzymes recurrently mutated in various types of cancer, including glioma, cholangiocarcinoma, chondrosarcoma, and acute myeloid leukemia. Mutant IDH1/2 induce a block in differentiation and thereby contribute to the stemness and oncogenesis of their cells of origin. Recently, small-molecule inhibitors of mutant IDH1/2 have been Food and Drug Administration-approved for the treatment of IDH1/2-mutated acute myeloid leukemia. These inhibitors decrease the stemness of the targeted IDH1/2-mutated cancer cells and induce their differentiation to more mature cells. In this review, we elucidate the mechanisms by which mutant IDH1/2 induce a block in differentiation and the biological and clinical effects of the release into differentiation by mutant-IDH1/2 inhibitors. (J Histochem Cytochem 70:83-97, 2022).

Keywords: 2-hydroxyglutarate; cancer stem cells; chemotherapy; differentiation; enasidenib; isocitrate dehydrogenase; ivosidenib; targeted therapy; therapy responses.

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Conflict of interest statement

Competing interest: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

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