Targeted Therapy of IDH1-Mutated Tumors
IDH1 and IDH2 are homodimeric enzymes that catalyze the conversion of isocitrate to α-ketoglutarate (α-KG) as part of the TCA cycle. Mutations in the genes encoding IDH1 and IDH2 have recently been found in glioma, acute myeloid leukemia (AML), chondrosarcoma, and intrahepatic cholangiocarcinoma. Th...
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Published in | Malignant Brain Tumors pp. 151 - 161 |
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Main Authors | , |
Format | Book Chapter |
Language | English |
Published |
Switzerland
Springer International Publishing AG
2017
Springer International Publishing |
Subjects | |
Online Access | Get full text |
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Summary: | IDH1 and IDH2 are homodimeric enzymes that catalyze the conversion of isocitrate to α-ketoglutarate (α-KG) as part of the TCA cycle. Mutations in the genes encoding IDH1 and IDH2 have recently been found in glioma, acute myeloid leukemia (AML), chondrosarcoma, and intrahepatic cholangiocarcinoma. The mutant protein loses its normal enzymatic activity and gains a new ability to produce the ‘oncometabolite’ 2-hydroxyglutarate (R-2-HG). R-2-HG inhibits enzymes that play crucial roles in gene regulation and tissue homeostasis. Expression of mutant IDH impairs cellular differentiation in various cell lineages and promotes tumor development in cooperation with other cancer genes. First-generation inhibitors of mutant IDH have entered clinical trials and have shown encouraging results in patients with IDH-mutant AML. This chapter summarizes recent progress in our understanding of the role of mutant IDH in tumorigenesis. |
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ISBN: | 3319498630 9783319498638 |
DOI: | 10.1007/978-3-319-49864-5_10 |