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Ref Type Journal Article
PMID (29339439)
Authors Molenaar RJ, Radivoyevitch T, Nagata Y, Khurshed M, Przychodzen B, Makishima H, Xu M, Bleeker FE, Wilmink JW, Carraway HE, Mukherjee S, Sekeres MA, van Noorden CJF, Maciejewski JP
Title IDH1/2 Mutations Sensitize Acute Myeloid Leukemia to PARP Inhibition and This Is Reversed by IDH1/2-Mutant Inhibitors.
Journal Clinical cancer research : an official journal of the American Association for Cancer Research
Vol 24
Issue 7
Date 2018 04 01
URL
Abstract Text Purpose: Somatic mutations in IDH1/2 occur in approximately 20% of patients with myeloid neoplasms, including acute myeloid leukemia (AML). IDH1/2MUT enzymes produce D-2-hydroxyglutarate (D2HG), which associates with increased DNA damage and improved responses to chemo/radiotherapy and PARP inhibitors in solid tumor cells. Whether this also holds true for IDH1/2MUT AML is not known.Experimental Design: Well-characterized primary IDH1MUT, IDH2MUT, and IDH1/2WT AML cells were analyzed for DNA damage and responses to daunorubicin, ionizing radiation, and PARP inhibitors.Results:IDH1/2MUT caused increased DNA damage and sensitization to daunorubicin, irradiation, and the PARP inhibitors olaparib and talazoparib in AML cells. IDH1/2MUT inhibitors protected against these treatments. Combined treatment with a PARP inhibitor and daunorubicin had an additive effect on the killing of IDH1/2MUT AML cells. We provide evidence that the therapy sensitivity of IDH1/2MUT cells was caused by D2HG-mediated downregulation of expression of the DNA damage response gene ATM and not by altered redox responses due to metabolic alterations in IDH1/2MUT cells.Conclusions:IDH1/2MUT AML cells are sensitive to PARP inhibitors as monotherapy but especially when combined with a DNA-damaging agent, such as daunorubicin, whereas concomitant administration of IDH1/2MUT inhibitors during cytotoxic therapy decrease the efficacy of both agents in IDH1/2MUT AML. These results advocate in favor of clinical trials of PARP inhibitors either or not in combination with daunorubicin in IDH1/2MUT AML. Clin Cancer Res; 24(7); 1705-15. ©2018 AACR.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
IDH2 mutant acute myeloid leukemia predicted - sensitive Olaparib Preclinical - Patient cell culture Actionable In a preclinical study, cells from a patient with acute myeloid leukemia harboring an IDH2 mutation were sensitive to treatment with Lynparza (olaparib) in culture, demonstrating decreased colony formation (PMID: 29339439). 29339439
IDH1 mutant acute myeloid leukemia predicted - sensitive Daunorubicin + Olaparib Preclinical - Patient cell culture Actionable In a preclinical study, the combination therapy of Lynparza (olaparib) and Cerubidine (daunoruibicin) resulted in an additive effect in cells from a patient with acute myeloid leukemia harboring an IDH1 mutation, demonstrating decreased colony formation in culture (PMID: 29339439). 29339439
IDH1 R132H colorectal cancer predicted - sensitive Talazoparib Preclinical - Cell culture Actionable In a preclinical study, colorectal cancer cells harboring IDH1 R132H were sensitive to treatment with Talzenna (talazoparib) in culture, demonstrating decreased colony formation (PMID: 29339439). 29339439
IDH2 mutant acute myeloid leukemia predicted - sensitive Daunorubicin + Talazoparib Preclinical - Patient cell culture Actionable In a preclinical study, the combination therapy of Talzenna (talazoparib) and Cerubidine (daunoruibicin) resulted in an additive effect in cells from a patient with acute myeloid leukemia harboring an IDH2 mutation, demonstrating decreased colony formation in culture (PMID: 29339439). 29339439
IDH1 mutant acute myeloid leukemia predicted - sensitive Talazoparib Preclinical - Patient cell culture Actionable In a preclinical study, cells from a patient with acute myeloid leukemia harboring an IDH1 mutation were sensitive to treatment with Talzenna (talazoparib) in culture, demonstrating decreased colony formation (PMID: 29339439). 29339439
IDH2 mutant acute myeloid leukemia predicted - sensitive Daunorubicin + Olaparib Preclinical - Patient cell culture Actionable In a preclinical study, the combination therapy of Lynparza (olaparib) and Cerubidine (daunoruibicin) resulted in an additive effect in cells from a patient with acute myeloid leukemia harboring an IDH2 mutation, demonstrating decreased colony formation in culture (PMID: 29339439). 29339439
IDH1 mutant acute myeloid leukemia predicted - sensitive Daunorubicin + Talazoparib Preclinical - Patient cell culture Actionable In a preclinical study, the combination therapy of Talzenna (talazoparib) and Cerubidine (daunoruibicin) resulted in an additive effect in cells from a patient with acute myeloid leukemia harboring an IDH1 mutation, demonstrating decreased colony formation in culture (PMID: 29339439). 29339439
IDH1 mutant acute myeloid leukemia predicted - sensitive Olaparib Preclinical - Patient cell culture Actionable In a preclinical study, cells from a patient with acute myeloid leukemia harboring an IDH1 mutation were sensitive to treatment with Lynparza (olaparib) in culture, demonstrating decreased colony formation (PMID: 29339439). 29339439
IDH2 mutant acute myeloid leukemia predicted - sensitive Talazoparib Preclinical - Patient cell culture Actionable In a preclinical study, cells from a patient with acute myeloid leukemia harboring an IDH2 mutation were sensitive to treatment with Talzenna (talazoparib) in culture, demonstrating decreased colony formation (PMID: 29339439). 29339439
IDH1 R132H colorectal cancer predicted - sensitive Olaparib Preclinical - Cell culture Actionable In a preclinical study, colorectal cancer cells harboring IDH1 R132H were sensitive to treatment with Lynparza (olaparib) in culture, demonstrating decreased colony formation (PMID: 29339439). 29339439