2019
Ifitm3 Is Essential for PI(3,4,5)P3-Dependent B-Cell Activation and Leukemogenesis
Lee J, Xiao G, Cosgun K, Geng H, Ma N, Chan L, Kume K, Nix M, Chen Z, Chen C, Chen J, Khairnar V, Wiita A, Thomas-Tikhonenko A, Farzan M, Diamond M, Jung J, Vaidehi N, Müschen M. Ifitm3 Is Essential for PI(3,4,5)P3-Dependent B-Cell Activation and Leukemogenesis. Blood 2019, 134: 2782. DOI: 10.1182/blood-2019-127615.Peer-Reviewed Original ResearchPoor clinical outcomeB cellsBCR-ABL1Clinical outcomesPI3KAntigen-specific humoral immune responsesAntigen-specific B cell responsesAntiviral effector functionsTime of diagnosisMRNA levelsB cell responsesHumoral immune responseSurface expressionB cell populationsB-cell malignanciesB-cell receptor signalingDependent B cell activationTransplant recipient miceMalignant B-cell transformationB cell activationB cell precursorsColony formation capacityAdvisory CommitteeSrc kinaseB-cell transformation
2018
Lgr5 Enables Positive B-Cell Selection and Tumor-Initiation in B-Cell Malignancies
Cosgun K, Deb G, Yang X, Xiao G, Sadras T, Auer F, Lee J, Abarientos A, Mangolini M, Aghajanirefah A, Geng H, Jumaa H, Polson A, Clevers H, Muschen M. Lgr5 Enables Positive B-Cell Selection and Tumor-Initiation in B-Cell Malignancies. Blood 2018, 132: 547. DOI: 10.1182/blood-2018-99-116956.Peer-Reviewed Original ResearchB-cell malignanciesB-cell lineageAntibody-drug conjugatesLeukemia-initiating cellsTransplant recipientsB-ALLSurface expressionCancer stem cell markersWorse overall survivalMature B cell poolPoor clinical outcomeSingle-agent treatmentΒ-cateninB cell poolB cell selectionStem cell markersΒ-catenin activationΒ-catenin target genesLGR5 overexpressionLIC frequencyOverall survivalLeukemia burdenClinical outcomesEnvironmental antigensRecipient mice
2015
IFITM3 (CD225) Links the B Cell Antigen CD19 to PI3K-AKT Signaling in Human ALL Cells
Lee J, Geng H, Chen Z, Eugene P, Klemm L, Bailey C, Muschen M. IFITM3 (CD225) Links the B Cell Antigen CD19 to PI3K-AKT Signaling in Human ALL Cells. Blood 2015, 126: 1325. DOI: 10.1182/blood.v126.23.1325.1325.Peer-Reviewed Original ResearchTime of diagnosisPI3K-Akt signalingPI3K-AktHuman preSurface expressionAgonistic antibodiesB-cell antigen CD19Patient-derived preRelapse-free survivalMRNA levelsChimeric antigen receptorMedian expression levelPI3K p110δSurface receptorsColony formation capacityMRD statusInduction chemotherapyImmunotherapy approachesAntigen CD19Cell cycle arrestCell receptor complexClinical trialsCD19 expressionHigh riskB cell progenitors
2014
IFITM3 (CD225) Regulates CD19 Surface Expression and CD19-Mediated Activation of PI3K Signaling in Pre-B Acute Lymphoblastic Leukemia Cells
Lee J, Geng H, Chen Z, Park E, Park A, Klemm L, Bailey C, Muschen M. IFITM3 (CD225) Regulates CD19 Surface Expression and CD19-Mediated Activation of PI3K Signaling in Pre-B Acute Lymphoblastic Leukemia Cells. Blood 2014, 124: 1070. DOI: 10.1182/blood.v124.21.1070.1070.Peer-Reviewed Original ResearchCD19-specific chimeric antigen receptorTime of diagnosisB cell progenitorsPI3K-AktSurface expressionCell cycle arrestC-myc expressionCD19 expressionCell progenitorsB cellsHuman preAcute lymphoblastic leukemia cellsLow-dose AdriamycinPatient-derived preSignificant inhibitionRelapse-free survivalG0/G1 cell cycle arrestMRNA levelsChimeric antigen receptorExpression of CD19Cycle arrestBCR-ABL1 activityG1 cell cycle arrestLymphoblastic leukemia cellsG0/G1 phase
2013
Ifitm3 (CD225) Mediates CD19-Dependent Survival and Proliferation During Normal B Cell Development and In Ph+ ALL
Lee J, Geng H, Chen Z, Park E, Klemm L, Bailey C, Muschen M. Ifitm3 (CD225) Mediates CD19-Dependent Survival and Proliferation During Normal B Cell Development and In Ph+ ALL. Blood 2013, 122: 2505. DOI: 10.1182/blood.v122.21.2505.2505.Peer-Reviewed Original ResearchB cell progenitorsC-myc expressionOverall survivalCell cycle arrestCell progenitorsB cellsBCR-ABL1Minimal residual disease statusResidual disease statusSignificant inhibitionTime of diagnosisG0/G1 cell cycle arrestHigh expression levelsPoor overall survivalExpression of CD19Treatment of adriamycinSurface expressionCycle arrestBCR-ABL1 activityG1 cell cycle arrestExpression levelsG0/G1 phaseCellular senescenceLow surface expressionLevels of p53