Hematopoiesis News Volume 14.05 | Feb 07 2023

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    2023-02-07 | HN 14.05


    Hematopoiesis News by STEMCELL Technologies
    Vol. 14.05 – 07 February, 2023
    TOP STORY

    A Prox1 Enhancer Represses Hematopoiesis in the Lymphatic Vasculature

    Researchers described a novel enhancer element that was important for regulating the expression of Prox1 in lymphatic endothelial cells.
    [Nature]

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    The NFIA-ETO2 Fusion Blocks Erythroid Maturation and Induces Pure Erythroid Leukemia in Cooperation with Mutant TP53

    To address the role for the pathogenesis of the disease, investigators expressed the NFIA-ETO2 fusion in murine erythroblasts. They observed that NFIA-ETO2 significantly increased proliferation and impaired erythroid differentiation of murine erythroleuemia cells and of primary fetal liver-derived erythroblasts.
    [Blood]

    Abstract

    Targeting Pleckstrin-2-Akt Signaling Reduces Proliferation in Myeloproliferative Neoplasm Models

    Scientists identified first-in-class pleckstrin-2 (Plek2) inhibitors through an in silico high-throughput screening and cell-based assays followed by the synthesis of analogs. The Plek2-specific small molecule inhibitors showed potent inhibitory effects on cell proliferation.
    [Journal Of Clinical Investigation]

    AbstractGraphical Abstract

    Myeloid-Like B Cells Boost Emergency Myelopoiesis through IL-10 Production during Infection

    Researchers found that myeloid-like B cells, which express myeloid markers, emerged in the bone marrow after the induction of emergency myelopoiesis.
    [Journal Of Experimental Medicine]

    Full Article
    Graphical Abstract

    Differential Inhibition of T Cell Receptor and STAT5 Signaling Pathways Determines the Immunomodulatory Effects of Dasatinib in Chronic Phase Chronic Myeloid Leukemia

    Scientists studied the impact of dasatinib in chronic myeloid leukemia patients and compared with patients taking other tyrosine kinase inhibitors and healthy controls.
    [Haematologica]

    Abstract

    Transgenic IDH2R172K and IDH2R140Q Zebrafish Models Recapitulated Features of Human Acute Myeloid Leukemia

    Investigators generated zebrafish models of isocitrate dehydrogenase 2 (IDH2)R172K and IDH2R140Q AML and reported their pathologic, functional, and transcriptomic features and therapeutic responses to target therapies.
    [Oncogene]

    Full Article

    Hematopoietic Cell Autonomous Disruption of Hematopoiesis in a Germline Loss-of-function Mouse Model of RUNX1-FPD

    The authors studied mice harboring a germline hypomorphic mutation of one Runx1 allele with a loss-of-function mutation in the other Runx1 allele, which displayed many hematologic characteristics found in human RUNX1 familial platelet disorder (RUNX1-FPD) patients.
    [Hemasphere]

    Full ArticleGraphical Abstract

    Regional Variation of Erythropoiesis-Stimulating Agent Hyporesponsiveness in the Global Daprodustat Dialysis Study (ASCEND-D)

    Investigators explored baseline characteristics and predictors of erythropoiesis-stimulating agents (ESA) hyporesponsiveness in a global randomized cardiovascular outcomes study comparing an investigational hypoxia-inducible factor prolyl hydroxylase inhibitor, daprodustat, with conventional (ESA) treatment.
    [American Journal of Nephrology]

    Abstract

    The Effect of High-Dose Vitamin D Supplementation on Hepcidin-25 and Erythropoiesis in Patients with Chronic Kidney Disease

    Study subjects received either 8000 IU of cholecalciferol daily or a placebo for 12 weeks. Researchers evaluated the change in markers of hepcidin expression, erythropoiesis, and iron status from baseline to week 12 and compared the change between the groups.
    [Bmc Nephrology]

    Full Article
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    REVIEWS

    Therapeutic Targeting of Tumor Myeloid Cells

    The authors discuss the first generation of myeloid modulators and highlight recent developments in modeling context-specific roles for different myeloid cell subtypes, which can ultimately inform how to drive more successful clinical trials.
    [Nature Reviews Cancer]

    Abstract

    The Clinical Impact of the Molecular Landscape of Acute Myeloid Leukemia

    Investigators discuss the utility of molecular markers in AML in prognostication and treatment decision-making.
    [Haematologica]

    Full Article
    INDUSTRY AND POLICY NEWS

    Aptose Initiates Dosing of Tuspetinib in APTIVATE Expansion Trial in Patients with Acute Myeloid Leukemia

    Aptose Biosciences Inc. announced the 120 mg monotherapy dosing of patients in the APTIVATE Phase I/II clinical trial of tuspetinib, an oral, mutation-agnostic tyrosine kinase inhibitor being developed for the treatment of patients with relapsed or refractory AML.
    [Aptose Bioscience, Inc.]

    Press Release
    FEATURED EVENT

    Multispecific Immune Cell Engagers for Cancer Immunotherapy

    February 19 – 22, 2023
    Banff, Alberta, Canada

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    JOB OPPORTUNITIES

    Postdoctoral/Research Associate – Translation Regulation of Hematopoiesis

    Hebrew University of Jerusalem – Jerusalem, Israel

    Postdoctoral Research Fellow – Chemical Engineering

    The University of Queensland – St. Lucia, Australia

    Research Associate – Regenerative Therapies

    Dresden University of Technology – Dresden, Germany

    Postdoctoral Position – Cell Biology

    Albert Einstein College of Medicine – New York, New York, United States

    Postdoctoral Researcher – Hematopoietic Stem Cell Niche

    Lund University – Lund, Sweden

    > See All Jobs

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