Hematopoiesis News Volume 15.05 | Feb 13 2024

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    2024-02-13 | HN 15.05


    Hematopoiesis News by STEMCELL Technologies
    Vol. 15.05 – 13 February, 2024
    TOP STORY

    SHP-1 Inhibition Targets Leukemia Stem Cells to Restore Immunosurveillance and Enhance Chemosensitivity by Metabolic Reprogramming

    The authors demonstrated that inhibition of tyrosine phosphatase SHP-1 in leukemia stem cells increased their glycolysis and oxidative phosphorylation, enhancing their sensitivity to chemotherapy and vulnerability to immunosurveillance.
    [Nature Cell Biology]

    Abstract
    Ready-to-use, ethically sourced, cryopreserved human PB macrophage. Click to learn more.
    PUBLICATIONSRanked by the impact factor of the journal

    Exonic Knockout and Knockin Gene Editing in Hematopoietic Stem and Progenitor Cells Rescues RAG1 Immunodeficiency

    Investigators developed gene editing strategies targeting a corrective sequence into the human RAG1 gene by homology-directed repair and validated them by tailored 2D, 3D, and in vivo xenotransplant platforms to assess rescue of expression and function.
    [Science Translational Medicine]

    Abstract

    3D Amplified Single-Cell RNA and Protein Imaging Identifies Oncogenic Transcript Subtypes in B Cell Acute Lymphoblastic Leukemia

    The 3D digital rolling circle amplification technique presented could distinguish BCR-ABL1 fusion transcript positive B-cell acute lymphoblastic leukemia cells with or without CD19 protein expression.
    [ACS Nano]

    Abstract

    Leukemia Exposure Alters the Transcriptional Profile and Function of BCR::ABL1 Negative Macrophages in the Bone Marrow Niche

    Scientists used a chimeric mouse model of chronic myeloid leukaemia and human bone marrow (BM) derived macrophages to study the impact of the dysregulated BM microenvironment on bystander macrophages.
    [Nature Communications]

    Full Article

    Phosphatase, Mg2+/Mn2+ Dependent 1B Regulates the Hematopoietic Stem Cells Homeostasis via the Wnt/β-Catenin Signaling

    By using a conditional knockout mouse model in which Ppm1b was specifically depleted in hematopoietic cells, researchers demonstrated that loss of Ppm1b impaired the HSC homeostasis and hematopoietic reconstitution.
    [Haematologica]

    Abstract

    Endocardium Gives Rise to Blood Cells in Zebrafish Embryos

    Using a combination of expression analysis, time-lapse imaging, and lineage-tracing approaches, investigators demonstrated that myeloid cells emerged from the endocardium in zebrafish embryos.
    [Cell Reports]

    Full ArticleGraphical Abstract

    Peroxisome Deficiency Underlies Failures in Hepatic Immune Cell Development and Antigen Presentation in a Severe Zellweger Disease Model

    Scientists characterized the hepatic immune compartment of a neonatal peroxisome biogenesis disorders mouse model at single-cell resolution to establish the importance and function of peroxisomes in developmental hematopoiesis.
    [Cell Reports]

    Full ArticleGraphical Abstract

    High-Dose Chemotherapy and Autologous Hematopoietic Stem-Cell Transplantation in Older, Fit Patients with Primary Diffuse Large B Cell CNS Lymphoma (MARTA): A Single-Arm, Phase II Trial

    Patients aged 65 years or older with newly diagnosed, untreated primary diffuse large B cell CNS lymphoma were enrolled if they had an Eastern Cooperative Oncology Group performance status of 0–2 and were fit for high-dose chemotherapy and autologous HSCT.
    [Lancet Haematology]

    Abstract

    Utility of Allogeneic Stem Cell Transplantation for Adult Ph+ALL eith Complete Molecular Remission

    Researchers compared the outcomes between Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ALL) patients who did or did not undergo allogeneic stem cell transplantation in the first complete remission.
    [American Journal Of Hematology]

    Abstract
    Learn more about using human primary cells for your assays
    REVIEWS

    BCR/ABL-Positive Chronic Myeloid Leukemia in Children: Current Treatment Approach

    The authors summarize the most updated treatment recommendations for pediatric chronic myeloid leukemia, and to discuss current areas of investigation.
    [Current Oncology Reports]

    Abstract
    INDUSTRY AND POLICY NEWS

    US FDA Puts Hold on Gilead’s Blood Cancer Therapy Trials

    The company will stop testing the drug, magrolimab, for all blood cancers and will review its safety across other studies such as those in patients with colon and breast cancers.
    [Reuters]

    News Article
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