2024
PKCδ-Mediated Phosphorylation of CD25 Initiates Feedback Control of Oncogenic Tyrosine Kinases in Acute Lymphoblastic Leukemia
Sun R, Lee J, Artadji D, Robinson M, Kume K, Cheng Z, Cosgun K, Chan L, Leveille E, Ma N, Geng H, Paietta E, Vaidehi N, Müschen M. PKCδ-Mediated Phosphorylation of CD25 Initiates Feedback Control of Oncogenic Tyrosine Kinases in Acute Lymphoblastic Leukemia. Blood 2024, 144: 632-632. DOI: 10.1182/blood-2024-211038.Peer-Reviewed Original ResearchB-ALL cellsPatient-derived xenograftsPh+ B-ALLPh-like B-ALLAntibody-drug conjugatesB-ALL casesB-ALLCre-mediated deletionOncogenic tyrosine kinasesBCR-ABL1Tyrosine kinase signalingSurface expressionColony formation capacityCD25 mRNACell surface expression of CD25Tyrosine kinaseGenetic deletionSurface expression of CD25Oncogenic tyrosine kinase signalingKinase signalingOncogene BCR-ABL1Transplant recipient miceControl ADCNegative feedback regulationExpression of CD25
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
Pre-BCR Surrogate Light Chain Components VPREB1 and IGLL1 Function As Pre-BCR-Independent Tumor Suppressors in Acute Lymphoblastic Leukemia
Cosgun K, Hendriks R, Dickins R, Heisterkamp N, Muschen M. Pre-BCR Surrogate Light Chain Components VPREB1 and IGLL1 Function As Pre-BCR-Independent Tumor Suppressors in Acute Lymphoblastic Leukemia. Blood 2018, 132: 570. DOI: 10.1182/blood-2018-99-115522.Peer-Reviewed Original ResearchBCR-ABL1Transgenic miceSurrogate light chainTime of diagnosisTime of relapseDouble transgenic miceExerts tumor-suppressive effectsAcute lymphoblastic leukemiaB cell defectsDay of birthBCR-ABL1 tyrosine kinaseHigh surface levelsTumor-suppressive effectsPre-BCR expressionColony formation abilityPhosphorylation of BtkTumor suppressorBCR-ABL1 oncogeneEarly B cell developmentTumor suppressive functionLymphoblastic leukemiaCell cycle arrestFrequent lesionsSecondary lesionsSuppressive function