2024
Tuning Responses to Polatuzumab Vedotin in B-cell Lymphoma.
Leveille E, Kothari S, Cosgun K, Mlynarczyk C, Müschen M. Tuning Responses to Polatuzumab Vedotin in B-cell Lymphoma. Cancer Discovery 2024, 14: 1577-1580. PMID: 39228298, DOI: 10.1158/2159-8290.cd-24-0644.Peer-Reviewed Original Research
2023
Optogenetic Control of Oncogenic Signaling in B-Cell Malignancies
Kume K, Lee J, Cheng Z, Robinson M, Leveille E, Cosgun K, Chan L, Feng Y, Arce D, Khanduja D, Toomre D, Müschen M. Optogenetic Control of Oncogenic Signaling in B-Cell Malignancies. Blood 2023, 142: 4138. DOI: 10.1182/blood-2023-190926.Peer-Reviewed Original ResearchB-cell malignanciesB-cell lymphomaMature B-cell lymphomasB cell deathB cellsB cell developmentGenetic deletionMantle cell lymphomaNF-kB signalingBCR signal inhibitorsB cell precursorsCell of originCell viabilityChronic active BCRB cell survivalB cell receptor signalsHodgkin's diseaseMultiple myelomaNormal B cell developmentPlasma cellsBtk tyrosine kinaseCell lymphomaBurkitt's lymphomaNF-kBSmall molecule inhibitorsImmunoglobulin Light Chains Control Permissiveness to Malignant B-Cell Transformation By RAS-Pathway Lesions
Chan L, Kume K, Hurtz C, Robinson M, Cosgun K, Müschen M. Immunoglobulin Light Chains Control Permissiveness to Malignant B-Cell Transformation By RAS-Pathway Lesions. Blood 2023, 142: 2974. DOI: 10.1182/blood-2023-190163.Peer-Reviewed Original ResearchJeKo-1 cellsB cell precursorsMature B cellsB cellsMantle cell lymphoma cellsCell lymphoma cellsGenetic ablationImmunoglobulin light chainsRAS activationOncogenic RASMalignant transformationB-cell acute lymphoblastic leukemiaConventional light chainsRAS pathwayLymphoma cellsCell deathOncogenic RAS activationLight chainAcute lymphoblastic leukemiaMature B-cell lymphomasTransgenic mouse modelB-cell lymphomaB-cell malignanciesMalignant B-cell transformationKappa-LCDynamic Recruitment of Inhibitory Complexes Controls Oncogenic Signaling in B-Cell Malignancies
Sun R, Lee J, Robinson M, Kume K, Ma N, Cosgun K, Chan L, Antoshkina I, Khanduja D, Leveille E, Katz S, Chen J, Paietta E, Vaidehi N, Müschen M. Dynamic Recruitment of Inhibitory Complexes Controls Oncogenic Signaling in B-Cell Malignancies. Blood 2023, 142: 719. DOI: 10.1182/blood-2023-189742.Peer-Reviewed Original ResearchB-cell malignanciesB-cell lymphomaHigher serum levelsMature B-cell lymphomasSoluble CD25Serum levelsOncogenic signalingMouse modelB cellsAggressive B-cell lymphomasAcceleration of diseaseActivation of inhibitoryPoor clinical outcomeCD25 surface expressionB cell subsetsRole of CD25Patient-derived xenograftsB cell populationsB-cell receptor signalingB-cell leukemiaGenetic mouse modelsKnockin mouse modelCell deathMature B cell populationClinical outcomesDevelopment of Chimeric Antigen Receptor (CAR) T Cells Targeting MET in Lymphomas and Solid Tumors
Chen P, Raghunandan R, Müschen M, Katz S. Development of Chimeric Antigen Receptor (CAR) T Cells Targeting MET in Lymphomas and Solid Tumors. Blood 2023, 142: 6805. DOI: 10.1182/blood-2023-186161.Peer-Reviewed Original ResearchDiffuse large B-cell lymphomaB-cell lymphomaChimeric antigen receptor T cellsAntigen receptor T cellsLarge B-cell lymphomaReceptor T cellsT cellsLymphoma cell linesHGF/METMET expressionOCI-Ly3CD69 expressionDLBCL cell linesCD19-CARSolid tumorsCell linesAnti-Met monoclonal antibodiesCD19 CAR T cellsNegative diffuse large B-cell lymphomaRefractory B-cell malignanciesLoss of CD19B-cell depletionActivation marker CD69Classic Hodgkin lymphomaJurkat T cells
2021
Beta-Catenin Forms Repressive Complexes with Ikzf1 and Ikzf3 to Orchestrate Tumor-Suppression in B-Cell Malignancies
Cosgun K, Robinson M, Chan L, Hur M, Leveille E, Song J, Chan W, Müschen M. Beta-Catenin Forms Repressive Complexes with Ikzf1 and Ikzf3 to Orchestrate Tumor-Suppression in B-Cell Malignancies. Blood 2021, 138: 29. DOI: 10.1182/blood-2021-148597.Peer-Reviewed Original ResearchB-cell malignanciesΒ-catenin activationΒ-cateninOncogenic Wnt/β-catenin signalingMalignant B-lymphoid cellsGenetic deletionRefractory B-ALLTranscriptional repressionB-cell lymphomaTumor suppressionWnt/β-catenin signalingΒ-catenin/TCF complexMature B-cell malignanciesB-lymphoid cellsCancer cell linesΒ-catenin signalingClonal fitnessOverall survivalLeukemia burdenNSG miceB-ALLCell cycle arrestNuclear β-cateninPan-cancer analysisFrequent lesions
2019
Lgr5 Functions As a Critical Negative Regulator of Wnt/β-Catenin Signaling and Is Essential for B-Lymphopoiesis and Malignant B-Cell Transformation
Cosgun K, Deb G, Yang X, Xiao G, Sadras T, Lee J, Chan L, Kume K, Yang L, Geng H, Chan J, Song J, Jumaa H, Polson A, Clevers H, Müschen M. Lgr5 Functions As a Critical Negative Regulator of Wnt/β-Catenin Signaling and Is Essential for B-Lymphopoiesis and Malignant B-Cell Transformation. Blood 2019, 134: 748. DOI: 10.1182/blood-2019-127263.Peer-Reviewed Original ResearchB-cell lineage acute lymphoblastic leukemiaWnt/β-catenin signalingΒ-catenin signalingNuclear β-cateninAntibody-drug conjugatesB cell developmentB cell survivalΒ-cateninB lymphopoiesisFunction of LGR5Median mRNA levelsTime of diagnosisPoor clinical outcomeRole of LGR5Acute lymphoblastic leukemiaB-cell lymphomaLeukemia initiating cellsWnt/β-cateninHigh surface expressionMalignant B-cell transformationCell linesB cell precursorsTypes of cancerHuman colon cancer cell linesB-cell lineage
2018
Autoimmunity Checkpoints As Therapeutic Targets in B-Cell Malignancies
Chen Z, Muschen M. Autoimmunity Checkpoints As Therapeutic Targets in B-Cell Malignancies. Blood 2018, 132: 1587. DOI: 10.1182/blood-2018-99-113674.Peer-Reviewed Original ResearchAutoreactive B-cell antigen receptorsB-cell malignanciesAcute lymphoblastic leukemiaAutoreactive B cellsB cellsCell malignanciesB cell antigen receptorNormal B cellsTypes of cancerAIC activationTargeted therapyAutoreactive clonesMalignant transformationTargeted activationAutoreactive B lymphocytesLymphocyte developmentPI3KB-cell lymphomaB-lymphoid malignanciesB-cell receptor signalingDrug-resistant leukemiaB-cell leukemiaB-cell tumorsCell deathNegative selection
2016
BCL6 Is Critical to Overcome Oncogene-Induced Senescence in RAS-Mediated B Cell Transformation
Chan L, Hurtz C, Xiao G, Shojaee S, Caeser R, Geng H, Melnick A, Müschen M. BCL6 Is Critical to Overcome Oncogene-Induced Senescence in RAS-Mediated B Cell Transformation. Blood 2016, 128: 438. DOI: 10.1182/blood.v128.22.438.438.Peer-Reviewed Original ResearchDiffuse large B-cell lymphomaRAS-ERK signalingBCL6 expressionRole of BCL6Recipient micePhiladelphia chromosome-positive acute lymphoblastic leukemiaSTAT5 activityRAS-ERKLarge B-cell lymphomaAbsence of Bcl6Acute lymphoblastic leukemiaNovel mouse modelProto-oncogene Bcl6B-cell lymphomaNovel therapeutic avenuesTransplant recipient miceNovel mechanismMouse embryonic fibroblastsOncogene-Induced SenescenceP53-dependent senescenceB-cell transformationInitial remissionLeukemia relapseOverall survivalImatinib treatmentOncogenic Feedback Activation Between BCL6 and MLL Promotes Malignant Transformation in MLL-RearrangedAcute Lymphoblastic Leukemia
Hurtz C, Chan L, Ballabio E, Willman C, Carroll W, Armstrong S, Ernst P, Melnick A, Milne T, Müschen M. Oncogenic Feedback Activation Between BCL6 and MLL Promotes Malignant Transformation in MLL-RearrangedAcute Lymphoblastic Leukemia. Blood 2016, 128: 907. DOI: 10.1182/blood.v128.22.907.907.Peer-Reviewed Original ResearchFunction of Bcl6Lymphoblastic leukemiaMLL-AF4Expression levelsPhiladelphia chromosome-positive acute lymphoblastic leukemiaBCL6 levelsPharmacological inhibitionDiffuse large B-cell lymphomaLarge B-cell lymphomaChemotherapy drugs vincristineTime of diagnosisWorse clinical outcomesBCL6 expressionHigh expression levelsRelapse-free survivalAcute lymphoblastic leukemiaChronic myeloid leukemiaB-cell lymphomaHigh-risk regimenMLL-ENLTransplant recipient miceB cell precursorsReporter mouse modelWestern blot analysisClinical outcomes
2015
Expression of B and T Lymphocyte Attenuator (BTLA) Correlates with CNS Metastasis and Adverse Prognosis in Activated B-Cell Lymphoma and Acute Lymphoblastic Leukemia
Geng H, Chen Z, Anderson S, Fraser E, Lu M, Lingjing C, Collins C, Markus M, Rubenstein J. Expression of B and T Lymphocyte Attenuator (BTLA) Correlates with CNS Metastasis and Adverse Prognosis in Activated B-Cell Lymphoma and Acute Lymphoblastic Leukemia. Blood 2015, 126: 3900. DOI: 10.1182/blood.v126.23.3900.3900.Peer-Reviewed Original ResearchPatient-derived cell linesLarge B-cell lymphomaB-cell lymphomaShorter overall survivalAcute lymphoblastic leukemiaHigh BTLA expressionBTLA expressionOverall survivalHigh-resolution array-based comparative genomic hybridizationMurine modelRecurrent copy number gainsDNA copy number aberrationsArray-based comparative genomic hybridizationCell linesCNS metastasisLymphoblastic leukemiaCopy number gainsB cell receptorComparative genomic hybridizationCopy number aberrationsPrimary central nervous system lymphomaGenomic changesCentral nervous system lymphomaTranscript levelsAggressive B-cell lymphomas
2014
BCL6 Enables RAS-Mediated Pre-B Cell Transformation in Childhood Acute Lymphoblastic Leukemia
Hurtz C, Geng H, Xiao G, Loh M, Ye B, Melnick A, Muschen M. BCL6 Enables RAS-Mediated Pre-B Cell Transformation in Childhood Acute Lymphoblastic Leukemia. Blood 2014, 124: 3570. DOI: 10.1182/blood.v124.21.3570.3570.Peer-Reviewed Original ResearchDiffuse large B-cell lymphomaAcute lymphoblastic leukemiaLymphoblastic leukemiaMouse modelRas-ERK pathwayB-cell lineage leukemiaChildhood acute lymphoblastic leukemiaExpression levelsLarge B-cell lymphomaInhibition of BCL6Patient-derived preB cell lineage cellsBCL6 expressionConventional cytotoxic therapyNovel mouse modelBCL6 functionB-cell lymphomaGenetic mouse modelsMRNA expression levelsMEK inhibitor PD325901Lineage-specific deletionPre-B-cell transformationCell transformationInitial remissionQuantitative RT-PCRPTEN 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 lymphomaSelf-Enforcing Feedback Activation Between BCL6 and Tonic Pre-B Cell Receptor Signaling in Acute Lymphoblastic Leukemia
Geng H, Hurtz C, Baumjohann D, Chen Z, Chen W, Ballabio E, Xiao G, Lee J, Deucher A, Qi Z, Huang C, Nahar R, Kweon S, Shojaee S, Chan L, Yu J, Tyner J, Chang B, Kornblau S, Bijl J, Ye B, Paietta E, Melnick A, Roeder R, Hunger S, Loh M, Milne T, Muschen M. Self-Enforcing Feedback Activation Between BCL6 and Tonic Pre-B Cell Receptor Signaling in Acute Lymphoblastic Leukemia. Blood 2014, 124: 284. DOI: 10.1182/blood.v124.21.284.284.Peer-Reviewed Original ResearchPre-BCR expressionB cell receptorInhibition of BCL6Patient-derived preTreatment of patientsMature B-cell lymphomasB-cell lymphomaPre-BCR signalingTCF3-PBX1Cell lymphomaMouse modelCell receptorDeletion of Bcl6Time of diagnosisBCL6 expressionPoor clinical outcomeAcute lymphoblastic leukemiaNovel mouse modelFeedback activationTranscription factor Bcl6Genetic mouse modelsB cell precursorsInhibition of SykHeavy chain expressionLineage-specific deletion
2013
Identification Of BCL6 As a Therapeutic Target In MLL-Rearranged ALL
Hurtz C, Geng H, Ballabio E, Xiao G, Ng C, Masouleh B, Willman C, Armstrong S, Milne T, Melnick A, Muschen M. Identification Of BCL6 As a Therapeutic Target In MLL-Rearranged ALL. Blood 2013, 122: 72. DOI: 10.1182/blood.v122.21.72.72.Peer-Reviewed Original ResearchDiffuse large B-cell lymphomaFunction of Bcl6White blood countPoor clinical outcomeAcute lymphoblastic leukemiaMinimal residual diseaseClinical outcomesMLL-AF4Clinical trialsBCL6 levelsPositive minimal residual diseasePharmacological inhibitionHigher white blood countExpression levelsLarge B-cell lymphomaAberrant expressionChemotherapy drugs vincristineBCL6 protein levelsTime of diagnosisWorse clinical outcomesBCL6 expressionRelapse-free survivalProtein levelsPediatric clinical trialsB-cell lymphoma
2012
Targeting BCL6-Mediated Drug-Resistance in High-Risk Childhood ALL
Hurtz C, Ramezani-Rad P, Geng H, Kharabi B, Carroll W, Willman C, Armstrong S, Melnick A, Muschen M. Targeting BCL6-Mediated Drug-Resistance in High-Risk Childhood ALL. Blood 2012, 120: 776. DOI: 10.1182/blood.v120.21.776.776.Peer-Reviewed Original ResearchDiffuse large B-cell lymphomaMLL-AF4High expression levelsBCL6 expressionExpression levelsB-cell lineage leukemiaHigh-risk childhood leukemiaMinimal residual disease statusNOD/SCID miceLarge B-cell lymphomaAberrant expressionFunction of Bcl6High-risk childhoodOnset of chemotherapyResidual disease statusTime of diagnosisPoor clinical outcomeProtein levelsBCR-ABL1 kinase activityB-cell lymphomaHigh-risk regimenBone marrow precursor cellsTransplant recipient miceGenetic mouse modelsB cell precursors
2010
BCL6 Is Required for the Maintenance of Leukemia-Initiating Cells In Chronic Myeloid Leukemia
Hurtz C, Duy C, Cerchietti L, Chatzi K, Park E, Klemm L, Kim Y, Kahn M, Braig M, Muller M, Hochhaus A, Ye B, Melnick A, Muschen M. BCL6 Is Required for the Maintenance of Leukemia-Initiating Cells In Chronic Myeloid Leukemia. Blood 2010, 116: 202. DOI: 10.1182/blood.v116.21.202.202.Peer-Reviewed Original ResearchDiffuse large B-cell lymphomaNOD/SCID miceChronic myeloid leukemiaHuman CML cellsLeukemia stem cellsTyrosine kinase inhibitorsCML cellsLeukemia-initiating cellsSCID miceMyeloid leukemiaCML patientsBCL6 expressionLeukemia stem cell maintenanceLSK cellsLarge B-cell lymphomaAbsence of Bcl6CML-initiating cellsCML-like leukemiaDistinct side populationStem cellsProtein levelsColony formationGene expression changesB-cell lymphomaLeukemia initiating cellsSYK Is a Tumor Suppressor In Pre-B Cell Acute Lymphoblastic Leukemia and Not a Therapeutic Target
Ng C, Nahar R, Elliott E, Lowell C, Muschen M. SYK Is a Tumor Suppressor In Pre-B Cell Acute Lymphoblastic Leukemia and Not a Therapeutic Target. Blood 2010, 116: 4199. DOI: 10.1182/blood.v116.21.4199.4199.Peer-Reviewed Original ResearchDeletion of SykPre-B leukemia cellsAcute lymphoblastic leukemiaPre-B cell receptor functionB-cell lymphomaImatinib treatmentTumor-suppressive effectsRole of SykPre-B cell receptorCell cycle arrestBCR-ABL1Cell receptorCritical survival signalsLeukemia cellsCell receptor signalingLymphoblastic leukemiaCell lymphomaSuppressive effectCycle arrestSyk tyrosine kinaseReceptor functionPre-B-cell acute lymphoblastic leukemiaWestern blotReceptor signalingPre-B cell receptor expression
2009
Activation-Induced Cytidine Deaminase Accelerates Clonal Evolution of BCR-ABL1-Driven B Cell Lineage Acute Lymphoblastic Leukemia.
Gruber T, Chang M, Sposto R, Müschen M. Activation-Induced Cytidine Deaminase Accelerates Clonal Evolution of BCR-ABL1-Driven B Cell Lineage Acute Lymphoblastic Leukemia. Blood 2009, 114: 181. DOI: 10.1182/blood.v114.22.181.181.Peer-Reviewed Original ResearchAcute lymphoblastic leukemiaAberrant AID expressionBCR-ABL1Lymphoblastic leukemiaB cellsBCR-ABL1 kinase domain mutationsB-cell lineage acute lymphoblastic leukemiaClonal evolutionTumor suppressor geneAberrant somatic hypermutationAID expressionB-cell lymphomaKinase domain mutationsGerminal center B cellsBone marrow cellsSuppressor geneBCR-ABL1 kinaseGC B cellsHazard ratioMedian survivalGenetic instabilityImatinib treatmentSomatic hypermutationB-cell lymphomagenesisCell lymphomaBCL6-Dependent Negative Regulation of Cell Cycle Checkpoint Regulators Enables Drug-Resistance in Ph+ Acute Lymphoblastic Leukemia.
Duy C, Cerchietti L, Yu J, Ci W, Swaminathan S, Nahar R, Kweon S, Klemm L, Ye B, Melnick A, Müschen M. BCL6-Dependent Negative Regulation of Cell Cycle Checkpoint Regulators Enables Drug-Resistance in Ph+ Acute Lymphoblastic Leukemia. Blood 2009, 114: 765. DOI: 10.1182/blood.v114.22.765.765.Peer-Reviewed Original ResearchB-cell lymphomaTyrosine kinase inhibitorsCell lymphomaBCR-ABL1TKI treatmentCheckpoint regulatorsBCR-ABL1 tyrosine kinase inhibitorsCell cycle checkpoint regulatorsNOD/SCID miceFunction of Bcl6Leukemia cell injectionTreatment of patientsAcute lymphoblastic leukemiaCombination of imatinibCombination of nilotinibKinase inhibitor nilotinibB-cell lymphoma cellsPeptide inhibitionPotential therapeutic usefulnessFunction experimentsB cell precursorsCell lymphoma cellsTranscriptional suppressionQuantitative RT-PCRMedian survival