2022
In vivo anti-tumor effect of PARP inhibition in IDH1/2 mutant MDS/AML resistant to targeted inhibitors of mutant IDH1/2
Gbyli R, Song Y, Liu W, Gao Y, Biancon G, Chandhok NS, Wang X, Fu X, Patel A, Sundaram R, Tebaldi T, Mamillapalli P, Zeidan AM, Flavell RA, Prebet T, Bindra RS, Halene S. In vivo anti-tumor effect of PARP inhibition in IDH1/2 mutant MDS/AML resistant to targeted inhibitors of mutant IDH1/2. Leukemia 2022, 36: 1313-1323. PMID: 35273342, PMCID: PMC9103411, DOI: 10.1038/s41375-022-01536-x.Peer-Reviewed Original ResearchConceptsAcute myeloid leukemiaMyelodysplastic syndromeMDS/acute myeloid leukemiaRefractory acute myeloid leukemiaPARP inhibitionVivo anti-tumor effectsAlternate therapeutic optionsSubset of AMLAnti-tumor effectsPre-clinical studiesRibose polymerase inhibitorsSerial transplantation assaysHomologous recombination defectsTherapeutic optionsTreatment optionsOverall engraftmentHigh relapseIDH inhibitionMyeloid leukemiaIsocitrate dehydrogenase 1Small molecule inhibitorsCell frequencyXeno-graftsIDH1/2 mutationsMalignant transformation
2021
Loss of ATRX confers DNA repair defects and PARP inhibitor sensitivity
Garbarino J, Eckroate J, Sundaram RK, Jensen RB, Bindra RS. Loss of ATRX confers DNA repair defects and PARP inhibitor sensitivity. Translational Oncology 2021, 14: 101147. PMID: 34118569, PMCID: PMC8203843, DOI: 10.1016/j.tranon.2021.101147.Peer-Reviewed Original ResearchPARP inhibitor sensitivityInhibitor sensitivityKey DNA damage response pathwaysDNA damage response pathwayFunction of ATRXHR-defective cellsDamage response pathwayAlpha thalassemia/mental retardation syndrome XDNA repair defectsLoss of ATRXHistone chaperonesHistone variantsReplication stressMental retardation syndrome XModel cell lineResponse pathwaysEpistatic interactionsDNA repairGene targetingAtaxia telangiectasiaKO cellsIsocitrate dehydrogenase 1DDR defectsMolecular markersRepair defectsAn IDH1-vitamin C crosstalk drives human erythroid development by inhibiting pro-oxidant mitochondrial metabolism
Gonzalez-Menendez P, Romano M, Yan H, Deshmukh R, Papoin J, Oburoglu L, Daumur M, Dumé AS, Phadke I, Mongellaz C, Qu X, Bories PN, Fontenay M, An X, Dardalhon V, Sitbon M, Zimmermann VS, Gallagher PG, Tardito S, Blanc L, Mohandas N, Taylor N, Kinet S. An IDH1-vitamin C crosstalk drives human erythroid development by inhibiting pro-oxidant mitochondrial metabolism. Cell Reports 2021, 34: 108723. PMID: 33535038, PMCID: PMC9169698, DOI: 10.1016/j.celrep.2021.108723.Peer-Reviewed Original ResearchConceptsIsocitrate dehydrogenase 1Oxidative phosphorylationMitochondrial metabolismReactive oxygen speciesHuman erythroid differentiationHuman erythroid developmentMitochondrial oxidative phosphorylationVitamin C homeostasisHSPC developmentIDH1 knockdownErythroid developmentStepwise differentiationErythroid differentiationLate-stage erythropoiesisTerminal stepCritical regulatorHematopoietic stemMitochondrial superoxideMitochondrial oxidationProgenitor cellsDehydrogenase 1Oxygen speciesCongenital dyserythropoietic anemiaCentral roleDyserythropoietic anemia
2020
Molecular Characterization of Clinical Response and Relapse in Patients with IDH1-Mutant Newly Diagnosed Acute Myeloid Leukemia Treated with Ivosidenib and Azacitidine
Daigle S, Choe S, DiNardo C, Stein A, Stein E, Fathi A, Frankfurt O, Schuh A, Döhner H, Martinelli G, Patel P, Raffoux E, Tan P, Zeidan A, De Botton S, Stone R, Frattini M, Franovic A, Xu E, Winkler T, Wu B, Vyas P. Molecular Characterization of Clinical Response and Relapse in Patients with IDH1-Mutant Newly Diagnosed Acute Myeloid Leukemia Treated with Ivosidenib and Azacitidine. Blood 2020, 136: 49-51. DOI: 10.1182/blood-2020-136922.Peer-Reviewed Original ResearchPeripheral blood mononuclear cellsAcute myeloid leukemiaBone marrow mononuclear cellsCurrent equity holderIntensive induction chemotherapyAgios PharmaceuticalsSafety monitoring boardIsocitrate dehydrogenase 1Daiichi SankyoSeattle GeneticsSpeakers bureauBristol-Myers SquibbIDH2 mutationsPTC TherapeuticsClinical responseMononuclear cellsClinical trialsDisease progressionMyeloid leukemiaMonitoring boardRefractory (R/R) AMLMutant IDH1R AMLAdvisory CommitteeForty-sevenOncometabolites suppress DNA repair by disrupting local chromatin signalling
Sulkowski PL, Oeck S, Dow J, Economos NG, Mirfakhraie L, Liu Y, Noronha K, Bao X, Li J, Shuch BM, King MC, Bindra RS, Glazer PM. Oncometabolites suppress DNA repair by disrupting local chromatin signalling. Nature 2020, 582: 586-591. PMID: 32494005, PMCID: PMC7319896, DOI: 10.1038/s41586-020-2363-0.Peer-Reviewed Original ResearchConceptsDNA repairDNA breaksFumarate hydrataseDownstream repair factorsHistone 3 lysine 9Homology-dependent repairPoly (ADP-ribose) polymeraseRecruitment of TIP60Deregulation of metabolismChromatin signalingSuccinate dehydrogenase genesGenome integrityLysine 9Repair factorsDehydrogenase geneEnd resectionIsocitrate dehydrogenase 1Aberrant hypermethylationMechanistic basisSomatic mutationsDehydrogenase 1GenesHuman malignanciesProper executionMutations
2019
PS1023 MUTANT IDH1 INHIBITOR IVOSIDENIB (AG‐120) IN COMBINATION WITH AZACITIDINE FOR NEWLY DIAGNOSED ACUTE MYELOID LEUKEMIA
DiNardo C, Stein A, Stein E, Fathi A, Frankfurt O, Schuh A, Döhner H, Martinelli G, Patel P, Raffoux E, Tan P, Zeidan A, de Botton S, Kantarjian H, Stone R, Lam D, Wang X, Gong J, Kapsalis S, Hickman D, Zhang V, Winkler T, Wu B, Vyas P. PS1023 MUTANT IDH1 INHIBITOR IVOSIDENIB (AG‐120) IN COMBINATION WITH AZACITIDINE FOR NEWLY DIAGNOSED ACUTE MYELOID LEUKEMIA. HemaSphere 2019, 3: 460-461. DOI: 10.1097/01.hs9.0000562388.60660.bc.Peer-Reviewed Original ResearchAcute myeloid leukemiaOverall response rateMorphologic leukemia-free stateComplete remissionAdverse eventsFebrile neutropeniaCR rateMyeloid leukemiaMutant IDH1Isocitrate dehydrogenase 1Double-blind placebo-controlled studyGrade 3/4 adverse eventsRefractory acute myeloid leukemiaBone marrow mononuclear cellsCR/CRhGrade adverse eventsIDH differentiation syndromeIDH1 inhibitor ivosidenibMedian response durationPartial hematologic recoveryPhase 1b studyAbsolute neutrophil countPlacebo-controlled studyTreatment of adultsMarrow mononuclear cells
2017
Induction of a BRCAness state by oncometabolites and exploitation by PARP inhibitors.
Bindra R, Sulkowski P, Corso C, Glazer P, Shuch B. Induction of a BRCAness state by oncometabolites and exploitation by PARP inhibitors. Journal Of Clinical Oncology 2017, 35: 11586-11586. DOI: 10.1200/jco.2017.35.15_suppl.11586.Peer-Reviewed Original ResearchAcute myeloid leukemiaMulti-center phase II trialIDH1/2 mutationsPARP inhibitorsMutant IDH1/2 inhibitorsPhase II trialEfficacy of olaparibPoly (ADP-ribose) polymerase (PARP) inhibitorsRelated gene mutationsHomologous recombination defectsII trialIDH1/2 inhibitorsMyeloid leukemiaIsocitrate dehydrogenase 1Therapeutic strategiesPathologic processesSmall molecule inhibitorsIDH1/2-mutant tumorsSmall molecule inhibitionTumor progressionDNA repair inhibitorsPolymerase inhibitorsModern oncologyTumor cellsKey mediator2-Hydroxyglutarate produced by neomorphic IDH mutations suppresses homologous recombination and induces PARP inhibitor sensitivity
Sulkowski PL, Corso CD, Robinson ND, Scanlon SE, Purshouse KR, Bai H, Liu Y, Sundaram RK, Hegan DC, Fons NR, Breuer GA, Song Y, Mishra-Gorur K, De Feyter HM, de Graaf RA, Surovtseva YV, Kachman M, Halene S, Günel M, Glazer PM, Bindra RS. 2-Hydroxyglutarate produced by neomorphic IDH mutations suppresses homologous recombination and induces PARP inhibitor sensitivity. Science Translational Medicine 2017, 9 PMID: 28148839, PMCID: PMC5435119, DOI: 10.1126/scitranslmed.aal2463.Peer-Reviewed Original ResearchConceptsIsocitrate dehydrogenase 1PARP inhibitor sensitivityPossible therapeutic strategiesHomologous recombination defectsTherapeutic strategiesTumor xenograftsInhibitor sensitivityPathologic processesSmall molecule inhibitorsIDH1/2 mutationsTumor progressionIDH2 mutationsMutant IDHPolymerase inhibitorsGlioma cellsTumor cellsHR deficiencyPARP inhibitionIDH mutationsInhibitory effectDehydrogenase 1Neomorphic activityMutant IDH1 enzymeDependent dioxygenasesMutant cells
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