2016
Feedback Regulation of STAT5 Is Critical to Balance MYC and BCL6-Dependent Transcriptional Programs That Regulate Cell Size and Glucose Metabolism
Chen Z, Geng H, Klemm L, Chan L, Daniel B, Alexander W, Willman C, Müschen M. Feedback Regulation of STAT5 Is Critical to Balance MYC and BCL6-Dependent Transcriptional Programs That Regulate Cell Size and Glucose Metabolism. Blood 2016, 128: 4069. DOI: 10.1182/blood.v128.22.4069.4069.Peer-Reviewed Original ResearchBCR-ABL1Survival rateMedian expressionAdult B-lineageFree survival rateOverall survival rateWorse clinical outcomesGroup of patientsHigh expression levelsLeukemia cellsMRNA levelsNOD-SCID miceMYC expressionTyrosine kinase inhibitorsBCR-ABL1 tyrosine kinaseExpression levelsKinase inhibitory regionMedical Research CouncilAdvisory CommitteeInhibition of mTORGlucose consumptionCOG trialsLeukemia regressionTyrosine kinaseClinical outcomesPP2A Balances Glucose Metabolism and Foxo Activation to Maintain Cellular Redox Homeostasis in Acute Lymphoblastic Leukemia
Xiao G, Chen Z, Daniel B, Chan L, Geng H, Jiang X, Müschen M. PP2A Balances Glucose Metabolism and Foxo Activation to Maintain Cellular Redox Homeostasis in Acute Lymphoblastic Leukemia. Blood 2016, 128: 1056. DOI: 10.1182/blood.v128.22.1056.1056.Peer-Reviewed Original ResearchLineage-specific rolesPro-survival roleLB-100PP2A subunitsRedox homeostasisH2AX phosphorylationUnexpected rolePI3K-AktFunction of PP2AProtein phosphatase 2ACellular redox homeostasisSer/ThrCatalytic subunit CAnti-oxidant gene expressionS6 ribosomal proteinHigh glycolytic fluxRescue effectGrowth competition assaysLeukemia cellsPentose phosphate pathway fluxHigher reactive oxygen species (ROS) levelsReduced cell growthPP2A functionSmall molecule inhibitorsFOXO factors
2015
Targeted Activation of B Cell Autoimmunity Checkpoints in Acute Lymphoblastic Leukemia
Chen Z, Geng H, Lowell C, Weiss A, Hunger S, Melnick A, Muschen M. Targeted Activation of B Cell Autoimmunity Checkpoints in Acute Lymphoblastic Leukemia. Blood 2015, 126: 3716. DOI: 10.1182/blood.v126.23.3716.3716.Peer-Reviewed Original ResearchTyrosine kinase inhibitorsB cell receptorAcute lymphoblastic leukemiaPre-BCR signalingB cellsB cell selectionLymphoblastic leukemiaBCR-ABL1Autoreactive B cell receptorsCell deathPre-B-cell originAcute lymphoblastic leukemia cellsCurrent therapy approachesLeukemia cellsWorse clinical outcomesSelf-reactive B cellsNegative B cell selectionPotent tyrosine kinase inhibitorLymphoblastic leukemia cellsNovel small molecule inhibitorTypes of cancerUbiquitous self-antigenClinical outcomesIncremental increasePoor outcomeOvercoming Drug Resistance of Pre-B ALL Cells By Targeting Integrin alpha6 Associated Cell-Adhesion Mediated Drug Resistance Using a Novel Antibody, P5G10
Gang E, Hsieh Y, Kim H, Duchartre Y, Stephanie S, Muschen M, Wayner E, Heisterkamp N, Bonig H, Kim Y. Overcoming Drug Resistance of Pre-B ALL Cells By Targeting Integrin alpha6 Associated Cell-Adhesion Mediated Drug Resistance Using a Novel Antibody, P5G10. Blood 2015, 126: 2525. DOI: 10.1182/blood.v126.23.2525.2525.Peer-Reviewed Original ResearchMinimal residual diseaseTyrosine kinase inhibitorsPeripheral bloodDrug resistanceFlow cytometryLeukemia cellsRecipient miceHuman CD45Bone marrowBCR-ABL1NOD/SCID miceControl recipient miceCell adhesion-mediated drug resistanceAdhesion-mediated drug resistanceNovel therapeutic targetControl-treated cellsCell-bearing miceChemotherapy-resistant cellsPercentage of adherenceLaminin-1Integrin alpha 6Mesenchymal stromal cellsNormal hematopoietic cellsOvercoming Drug ResistanceUntreated mice
2014
Harnessing Negative B Cell Selection to Overcome Drug-Resistance in Acute Lymphoblastic Leukemia
Chen Z, Shojaee S, Geng H, Lee J, Buchner M, Klemm L, Lowell C, Paietta E, Willman C, Carroll W, Melnick A, Jung J, Jumaa H, Coligan J, Bolland S, Mak T, Muschen M. Harnessing Negative B Cell Selection to Overcome Drug-Resistance in Acute Lymphoblastic Leukemia. Blood 2014, 124: 792. DOI: 10.1182/blood.v124.21.792.792.Peer-Reviewed Original ResearchAcute lymphoblastic leukemiaTyrosine kinase inhibitorsB cell receptorInhibitory receptorsTherapeutic targetPre-BCR signalingLymphoblastic leukemiaXenograft cellsB cellsSurvival rateB-cell acute lymphoblastic leukemiaCell deathAuto-reactive clonesFree survival rateCell acute lymphoblastic leukemiaOverall survival rateWorse clinical outcomesLeukemia cellsNegative B cell selectionAdditional therapeutic targetsAvailable therapeutic interventionsG1cell cycle arrestPotent tyrosine kinase inhibitorNovel small molecule inhibitorColony formation capacityPTEN Is Essential for Normal Cytokine Signaling and Oncogenic Transformation of Pre-B Cells
Shojaee S, Cazzaniga V, Schjerven H, Buchner M, Hurtz C, Geng H, Hochhaus A, Cazzaniga G, Melnick A, Kornblau S, Graeber T, Muschen M. PTEN Is Essential for Normal Cytokine Signaling and Oncogenic Transformation of Pre-B Cells. Blood 2014, 124: 262. DOI: 10.1182/blood.v124.21.262.262.Peer-Reviewed Original ResearchAcute lymphoblastic leukemiaAlleles of PTENDeletion of PTENPI3K-Akt pathwayPI3K-Akt signalingGlucocorticoid resistanceHuman preSmall molecule inhibitorsBCR-ABL1Expression levelsMyeloid lineage leukemiasPatient-derived prePTEN deletionT-cell acute lymphoblastic leukemiaCell acute lymphoblastic leukemiaHigh expression levelsLeukemia cellsTime of diagnosisPoor clinical outcomeCell deathMature B-cell lymphomasPTEN inhibitionHuman cancersLeukemia/lymphomaB-cell lymphoma
2013
Oncogene-Induced DNA Repair Defects Promote PARP1-Mediated “Dual Synthetic Lethality” To Eradicate Quiescent and Proliferating Leukemia Stem and Progenitor Cells
Nieborowska-Skorska M, Slupianek A, Hoser G, Bolton-Gillespie E, Tulin A, Cerny-Reiterer S, Valent P, Muschen M, Sykes S, Skorski T. Oncogene-Induced DNA Repair Defects Promote PARP1-Mediated “Dual Synthetic Lethality” To Eradicate Quiescent and Proliferating Leukemia Stem and Progenitor Cells. Blood 2013, 122: 810. DOI: 10.1182/blood.v122.21.810.810.Peer-Reviewed Original ResearchQuiescent leukemia stem cellsLeukemia progenitor cellsLeukemia stem cellsImatinib-naïveLeukemia cellsAML1-ETOBCR-ABL1PARP1 inhibitorsProgenitor cellsNormal cellsAnti-leukemia effectPositive AML cellsBCR-ABL1 T315I mutationInhibited colony formationAnti-proliferative effectsPARP inhibitor olaparibStem cellsModest inhibitory effectInhibition of PARPPeripheral bloodDisease burdenBone marrow nicheClinical trialsAML cellsT315I mutationThe Plasma Cell Transcription Factor XBP1 is Required To Mitigate The Unfolded Protein Response In Ph+ ALL
Masouleh B, Geng H, Hurtz C, Huang C, Chan L, Swaminathan S, Sun H, Koeffler H, Melnick A, Paietta E, Glimcher L, Muschen M. The Plasma Cell Transcription Factor XBP1 is Required To Mitigate The Unfolded Protein Response In Ph+ ALL. Blood 2013, 122: 836. DOI: 10.1182/blood.v122.21.836.836.Peer-Reviewed Original ResearchRelapse-free survivalX-box binding protein 1White blood cell countPR domain zinc finger protein 1Minimal residual diseaseLeukemia-initiating cellsOverall survivalMultiple myelomaPlasma cellsB cellsClinical relevanceWorse relapse-free survivalUnfolded protein responseXBP1 activationHigh expressionOnset of chemotherapyLeukemia cellsPoor overall survivalBlood cell countInducible CreProtein 1Improved treatment optionsBCR-ABL1 kinase activityTranscription factor X-box binding protein 1Bone marrow B cellsInhibitory Receptors and Phosphatases Enable Oncogenic Tyrosine Kinase Signaling In B Cell Lineage Leukemia
Chen Z, Shojaee S, Geng H, Lee J, Buchner M, Klemm L, Lowell C, Paietta E, Willman C, Carroll W, Melnick A, Jung J, Jumaa H, Coligan J, Bolland S, Mak T, Muschen M. Inhibitory Receptors and Phosphatases Enable Oncogenic Tyrosine Kinase Signaling In B Cell Lineage Leukemia. Blood 2013, 122: 229. DOI: 10.1182/blood.v122.21.229.229.Peer-Reviewed Original ResearchAcute lymphoblastic leukemiaB cell receptorTyrosine kinase inhibitorsInhibitory receptorsTherapeutic targetB cellsBCR-ABL1Survival rateB-cell lineage leukemiaCell deathAuto-reactive clonesFree survival rateLeukemia cellsOverall survival rateWorse clinical outcomesG0/G1 cell cycle arrestAdditional therapeutic targetsCycle arrestAvailable therapeutic interventionsG1cell cycle arrestPotential therapeutic targetG1 cell cycle arrestOncogenic tyrosine kinasesNovel small molecule inhibitorCellular senescenceTargeting Pre-B Cell Receptor and BCL6 In TCF3-PBX1 B-Lineage Acute Lymphoblastic Leukemia
Geng H, Hurtz C, Chen Z, Chen W, Ballabio E, Xiao G, Kweon S, Nahar R, Sojaee S, Chan L, Masouleh B, Sykes D, Melnick A, Roeder R, Milne T, Muschen M. Targeting Pre-B Cell Receptor and BCL6 In TCF3-PBX1 B-Lineage Acute Lymphoblastic Leukemia. Blood 2013, 122: 349. DOI: 10.1182/blood.v122.21.349.349.Peer-Reviewed Original ResearchPre-BCR signalingGene expression microarray dataB-lineage acute lymphoblastic leukemiaExpression microarray dataTyrosine kinase inhibitorsPre-B cell receptorCell deathMicroarray dataPre-BCR componentsPoor clinical outcomeAcute lymphoblastic leukemiaTCF3-PBX1Cell line 697Cell cycle arrestTranscriptional repressor BCL6ChIPseq dataPre-BCRChIP-seqCellular processesClinical outcomesCritical survival factorTherapeutic targetLeukemia cellsLymphoblastic leukemiaTransplant recipient mice
2012
BACH2 Is Required for Pre-B Cell Receptor Checkpoint Control and p53-Dependent Tumor Surveillance
Swaminathan S, Kang H, Harvey R, Huang C, Buchner M, Chen Z, Geng H, Hall A, Igarashi K, Carroll W, Willman C, Melnick A, Muschen M. BACH2 Is Required for Pre-B Cell Receptor Checkpoint Control and p53-Dependent Tumor Surveillance. Blood 2012, 120: 1300. DOI: 10.1182/blood.v120.21.1300.1300.Peer-Reviewed Original ResearchFavorable clinical outcomeTyrosine kinase inhibitorsPre-B cell cloneOncogene-induced senescenceClinical outcomesLeukemia cellsB cellsBCR-ABL1Multivariate analysisCell clonesAcute lymphoblastic leukemia cellsTime of diagnosisMRNA levelsTumor suppressor CDKN2AGerminal center B cellsLymphoblastic leukemia cellsEvidence of MRDNormal human bone marrowCases of childhoodSigns of diseaseRelapse of childhoodBACH2 locusImmunoglobulin heavy chain geneQuantitative RT-PCRMYC resultsBCL6 Interacting Corepressor (BCOR) Functions As Lineage-Specific Tumor Suppressor in B Lymphoid and Myeloid Leukemia
Shojaee S, Geng H, Gearhart M, Bardwell V, Muschen M. BCL6 Interacting Corepressor (BCOR) Functions As Lineage-Specific Tumor Suppressor in B Lymphoid and Myeloid Leukemia. Blood 2012, 120: 1301. DOI: 10.1182/blood.v120.21.1301.1301.Peer-Reviewed Original ResearchB-cell lineageMyeloid leukemiaLeukemia cellsBCR-ABL1B-lymphoidTKI sensitivityBCOR overexpressionLoxP-flanked STOP cassetteCML-like leukemiaProgenitor cellsTumor suppressorBone marrow hematopoietic stemAcute myeloid leukemiaBone marrow progenitor cellsCell lineagesMarrow progenitor cellsTumor suppressor roleMyelodysplastic syndromeMale miceTKI resistanceCML cellsLoxP-flanked allelesFatal diseaseTumor growthLeukemia typesITIM-Containing Inhibitory Receptors Are Required to Balance Oncogenic Signaling Strength in Ph+ ALL
Chen Z, Geng H, Buchner M, Klemm L, Hemati K, Shojaee S, Tak M, Coligan J, Carroll W, Willman C, Muschen M. ITIM-Containing Inhibitory Receptors Are Required to Balance Oncogenic Signaling Strength in Ph+ ALL. Blood 2012, 120: 291. DOI: 10.1182/blood.v120.21.291.291.Peer-Reviewed Original ResearchBCR-ABL1Leukemia cellsInhibitory receptorsLeukemia cell deathTherapeutic targetSurvival rateCellular senescenceAcute lymphoblastic leukemia cellsFree survival rateOverall survival rateG0/G1 cell cycle arrestMRNA levelsAdditional therapeutic targetsNOD-SCID miceNormal bone marrow samplesBone marrow samplesCycle arrestHalf of casesG1cell cycle arrestLymphoblastic leukemia cellsG1 cell cycle arrestCell deathColony forming assaysCOG trialsLeukemia regressionSuppressor of Cytokine Signaling (SOCS) Molecules Are Critical to Balance Oncogenic Signaling Strength in Ph+ ALL.
Chen Z, Geng H, Klemm L, Buchner M, Hemati K, Shojaee S, Alexander W, Carroll W, Willman C, Muschen M. Suppressor of Cytokine Signaling (SOCS) Molecules Are Critical to Balance Oncogenic Signaling Strength in Ph+ ALL. Blood 2012, 120: 2563. DOI: 10.1182/blood.v120.21.2563.2563.Peer-Reviewed Original ResearchBCR-ABL1Leukemia cellsTherapeutic targetSurvival rateP-STAT5Acute lymphoblastic leukemia cellsFree survival rateOverall survival rateHigh expression levelsG0/G1 cell cycle arrestRole of SOCS2Course of diseaseMRNA levelsAdditional therapeutic targetsNOD-SCID miceInducible deletionG1 cell cycle arrestLymphoblastic leukemia cellsExpression levelsCellular senescenceCOG trialsLeukemia regressionExpression of SOCS2Poor outcomeJAK/STAT pathwayFunctional Modulation of VLA6 in BCR-ABL1+ Pre-B Acute Lymphoblastic Leukemia.
Gang E, Hsieh Y, Geng H, Pham J, Muschen M, de Arcangelis A, Willman C, Carroll W, Georges-Labouesse E, Bonig H, Kim Y. Functional Modulation of VLA6 in BCR-ABL1+ Pre-B Acute Lymphoblastic Leukemia. Blood 2012, 120: 2565. DOI: 10.1182/blood.v120.21.2565.2565.Peer-Reviewed Original ResearchMedian survival timeAcute lymphoblastic leukemiaBCR/ABL1Tyrosine kinase inhibitorsBCR-ABL1Leukemia progressionDrug resistanceBone marrow environmentLeukemia cellsLymphoblastic leukemiaPre-B Acute Lymphoblastic LeukemiaFlow cytometryNOD/SCID micePoor clinical outcomeCell adhesion-mediated drug resistanceChronic myeloid leukemiaMinimal residual diseaseChemotherapy drug resistanceAdhesion-mediated drug resistanceAddition of tamoxifenNormal B cellsModels of leukemiaVivo deletionConditional knockout modelNilotinib treatmentTargeting the UPR-Transcription Factor XBP1 to Overcome Drug-Resistance in Ph+ ALL
Masouleh B, Hurtz C, Geng H, Ramezani-Rad P, Glimcher L, Muschen M. Targeting the UPR-Transcription Factor XBP1 to Overcome Drug-Resistance in Ph+ ALL. Blood 2012, 120: 872. DOI: 10.1182/blood.v120.21.872.872.Peer-Reviewed Original ResearchX-box binding protein 1Relapse-free survivalMultiple myelomaSTF-083010Overall survivalPlasma cellsMinimal residual disease statusPKR-like ER kinaseOnset of chemotherapyLeukemia cellsResidual disease statusPoor overall survivalInducible CreImproved treatment optionsPlasma cell malignancyBone marrow B cell precursorsBone marrow progenitor cellsPresence of IL7ER stressTransplant recipient micePotential clinical relevanceUnfolded protein responseNormal bone marrowB cell precursorsMarrow progenitor cells
2011
Targeting Inhibitory Phosphatases in Tyrosine Kinase-Driven Leukemias
Shojaee S, Buchner M, Geng H, Silvia B, Koeffler P, Muschen M. Targeting Inhibitory Phosphatases in Tyrosine Kinase-Driven Leukemias. Blood 2011, 118: 1382. DOI: 10.1182/blood.v118.21.1382.1382.Peer-Reviewed Original ResearchCell deathReactive oxygen speciesInducible deletionLeukemia cellsTyrosine kinase signalingActivation signalsSmall molecule inhibitionSubsequent cell deathMultiple new targetsLeukemia cell deathBCR-ABL1 oncogeneCytoplasmic tailKinase signalingTransplant recipient miceInduction of CreTyrosine kinase inhibitorsCellular senescenceMolecule inhibitionTyrosine kinasePTPN6Drastic upregulationINPP5DCurrent tyrosine kinase inhibitorsPTENDeletionDUSP6-Mediated Negative Feedback to Oncogenic Tyrosine Kinase Signaling Prevents Excessive Accumulation of ROS and Enables Leukemia Cell Survival
Shojaee S, Buchner M, Geng H, Melnick A, Gery S, Molkentin J, Koeffler P, Muschen M. DUSP6-Mediated Negative Feedback to Oncogenic Tyrosine Kinase Signaling Prevents Excessive Accumulation of ROS and Enables Leukemia Cell Survival. Blood 2011, 118: 1479. DOI: 10.1182/blood.v118.21.1479.1479.Peer-Reviewed Original ResearchCellular senescenceEffects of BCIProtein levelsCpG methylation analysisLeukemia cellsOncogene-induced senescenceGene expression changesLineage leukemiaCpG methylation levelsOncogenic tyrosine kinasesPharmacological inhibitionTyrosine kinase activityActivation of p53Small molecule inhibitorsBone marrow progenitor cellsGenetic experimentsDUSP6 functionLeukemia cell survivalTherapeutic targetB-cell lymphoma cell linesMarrow progenitor cellsNormal growth kineticsHigh ROS levelsKinase activityPromoter regionMechanisms of Ikaros-Mediated Tumor Suppression
Nahar R, Ramezani-Rad P, Dovat S, Buchner M, Graeber T, Muschen M. Mechanisms of Ikaros-Mediated Tumor Suppression. Blood 2011, 118: 408. DOI: 10.1182/blood.v118.21.408.408.Peer-Reviewed Original ResearchPre-B cell receptor signalingPre-B cell receptorCell receptor signalingAbility of IkarosGene expression changesTumor suppressor pathwayTumor suppressionTumor suppressorDephosphorylation eventsReceptor signalingGenetic evidenceSuppressor pathwayAdapter moleculeExpression changesCritical phosphorylation eventsCommon gene expression changesCell receptorTumor-suppressive transcription factorCell cycle exitSimilar gene expression changesComprehensive gene expression analysisARF/p53 pathwayLeukemia cellsBCR-ABL1 kinaseCell cycle progressionBACH2 Mediates Early B Cell Differentiation and Oncogene-Induced Senescence in Acute Lymphoblastic Leukemia
Swaminathan S, Huang C, Titz B, Buchner M, Geng H, Graeber T, Willman C, Igarashi K, Melnick A, Muschen M. BACH2 Mediates Early B Cell Differentiation and Oncogene-Induced Senescence in Acute Lymphoblastic Leukemia. Blood 2011, 118: 562. DOI: 10.1182/blood.v118.21.562.562.Peer-Reviewed Original ResearchTyrosine kinase inhibitorsRelapse of childhoodBCR-ABL1B cell differentiationDay 29Leukemia cellsB cellsMRNA levelsOverexpression of MYCEarly B cell differentiationAcute lymphoblastic leukemia cellsAcute lymphoblastic leukemiaTumor suppressor CDKN2AGerminal center B cellsLymphoblastic leukemia cellsEvidence of MRDNormal human bone marrowSigns of diseaseCommon gene expression signatureFraction of casesPositive MRDQuantitative RT-PCRRole of Bach2Gene expression signaturesImatinib treatment