Hematopoietic Cell News Volume 12.04 | Feb 2 2021

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    02-02-2021 | HEMA 12.04


    Hematopoiesis News by STEMCELL Technologies
    Vol. 12.04 – 02 February, 2021
    TOP STORY

    Dissecting ELANE Neutropenia Pathogenicity by Human HSC Gene Editing

    Researchers conducted a pooled CRISPR screen in human hematopoietic stem and progenitor cells that correlated ELANE mutations with neutrophil maturation potential.
    [Cell Stem Cell]

    AbstractGraphical Abstract
    Explore scientific events this February with the Science Events Calendar.
    PUBLICATIONSRanked by the impact factor of the journal

    Niche Derived Netrin-1 Regulates Hematopoietic Stem Cell Dormancy via Its Receptor Neogenin-1

    The authors identified the cell surface receptor neogenin-1 as specifically expressed in dormant HSCs. Loss of neogenin-1 initially leads to increased HSC expansion but subsequently to loss of self-renewal and premature exhaustion in vivo.
    [Nature Communications]

    Full Article

    Dynamics of Genome Architecture and Chromatin Function during Human B Cell Differentiation and Neoplastic Transformation

    Scientists integrated in situ Hi-C and nine additional omics layers. Beyond conventional active and inactive compartments, they uncovered a highly-dynamic intermediate compartment enriched in poised and polycomb-repressed chromatin.
    [Nature Communications]

    Full Article

    Targeting of Plasminogen Activator Inhibitor-1 Activity Promotes Elimination of Chronic Myeloid Leukemia Stem Cells

    Investigators demonstrated for the first time that TGF-β-PAI-1 axis was selectively augmented in chronic myeloid leukemia (CML) in the bone marrow, whereby protecting CML-leukemia stem cells from tyrosine kinase inhibitor treatment.
    [Haematologica]

    Full Article

    MicroRNA-21 Maintains Hematopoietic Stem Cell Homeostasis through Sustaining the NF-κB Signaling Pathway in Mice

    Scientists revealed that miR-21 deficiency markedly decreases the NF-κB pathway, accompanied by increased expression of PDCD4, a direct target of miR-21, in HSCs.
    [Haematologica]

    Full Article

    The Necroptotic Cell Death Pathway Operates in Megakaryocytes, but Not in Platelet Synthesis

    The authors demonstrated that megakaryocytes possess a functional necroptosis signaling cascade. Necroptosis activation led to phosphorylation of mixed lineage kinase domain-like, loss of viability and cell swelling.
    [Cell Death & Disease]

    Full Article

    CD34+ Hematopoietic Progenitor Cell Subsets Exhibit Differential Ability to Maintain Human Cytomegalovirus Latency and Persistence

    Researchers generated CD34+ progenitor cells from two different embryonic stem cell lines, WA01 and WA09, to circumvent limitations associated with primary CD34+ hematopoietic progenitor cells.
    [Journal of Virology]

    Abstract

    The Effects of Bone Marrow Stem and Progenitor Cell Seeding on Urinary Bladder Tissue Regeneration

    The authors describe the results of varying the proportion of bone marrow mesenchymal stem cells to CD34+ hematopoietic stem/progenitor cells co-seeded onto synthetic poly(1,8 octamethylene citrate) or small intestinal submucosa scaffolds and their contribution to bladder tissue regeneration.
    [Scientific Reports]

    Full Article

    Comparison of DNA Repair and Radiosensitivity of Different Blood Cell Populations

    Investigators measured the radiation response of T cells, B cells, NK cells, CD34+ progenitor cells and monocytes obtained from peripheral blood and monocyte-derived macrophages and immature dendritic cells ex vivo and showed that T and B cells were highly sensitive, starting to undergo apoptosis following ionizing radiation with a dose as low as 0.125 Gy.
    [Scientific Reports]

    Full Article

    Musashi 2 Influences Chronic Lymphocytic Leukemia Cell Survival and Growth Making It a Potential Therapeutic Target

    When comparing the global gene expression of recently divided chronic lymphocytic leukemia cells with that of previously divided cells, researchers found higher levels of genes involved in regulating gene expression.
    [Leukemia]

    Full Article
    The StemSpanâ„¢ T Cell Generation Kit is designed to promote differentiation of HSPCs into T cells in stroma- and serum-free culture conditions.
    REVIEWS

    Local and Systemic Mechanisms Linking Periodontal Disease and Inflammatory Comorbidities

    Understanding how certain extra-oral pathologies are affected by disseminated periodontal pathogens and periodontitis-associated systemic inflammation, including adaptation of bone marrow hematopoietic progenitors, may provide new therapeutic options to reduce the risk of periodontitis-associated comorbidities.
    [Nature Reviews Immunology]

    Full Article

    Mitochondrial and Metabolic Pathways Regulate Nuclear Gene Expression to Control Differentiation, Stem Cell Function, and Immune Response in Leukemia

    Investigators highlight how mitochondrial and metabolic pathways function as a central mediator to control gene expression, specifically on stem cell functions, differentiation and immune response in leukemia.
    [Cancer Discovery]

    Abstract
    INDUSTRY AND POLICY NEWS

    Janssen Announces CAR-T Therapy Ciltacabtagene Autoleucel (Cilta-cel) Accepted for Accelerated Assessment in Europe for the Treatment of Patients with Heavily Pretreated Multiple Myeloma

    The Janssen Pharmaceutical Companies of Johnson & Johnson announced that the Committee for Medicinal Products for Human Use of the European Medicines Agency will perform an accelerated assessment of the Marketing Authorisation Application for the B-cell maturation antigen-targeted chimeric antigen receptor T-cell therapy ciltacabtagene autoleucel.
    [Janssen Pharmaceutical Companies of Johnson & Johnson]

    Press Release

    Stuart H. Orkin receives the 2021 ISSCR Tobias Lecture Award

    The International Society for Stem Cell Research (ISSCR) awarded the 2021 Tobias Lecture Award to Stuart H. Orkin, MD, Boston Children’s Hospital, Dana-Farber Cancer Institute, and Harvard Medical School. “Stuart is one of the most accomplished and innovative physician-scientists in the world engaged in hematopoiesis research,” said Christine Mummery, ISSCR President.
    [The International Society for Stem Cell Research (EurekAlert!)]

    Press Release
    FEATURED EVENT

    AACR: COVID-19 and Cancer

    February 3 – 5, 2021
    Virtual

    > See All Events

    JOB OPPORTUNITIES

    Biobank Administrator – Hematopoietic Samples

    University of Oxford – Oxford, England, United Kingdom

    Training Fellowships – Glycosciences

    Blood Research Institute – Milwaukee, Wisconsin, United States

    Postdoctoral Fellow – Cancer Epigenetics

    The University of Texas MD Anderson Cancer Center – Houston, Texas, United States

    Research Associate – Pediatric Myeloid Tumors

    St. Jude Children’s Hospital – Memphis, Tennessee, United States

    Postdoctoral Fellow – Tumor Biology and Therapeutic Applications

    Harvard Medical School – Boston, Massachusetts, United States

    > See All Jobs

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