Hematopoiesis News Volume 11.45 | Nov 17 2020

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    2020-11-17 | HEMA 11.45


    Hematopoiesis News by STEMCELL Technologies
    Vol. 11.45 – 17 November, 2020
    TOP STORY

    CC-90009, a Novel Cereblon E3 Ligase Modulator Targets Acute Myeloid Leukemia Blasts and Leukemia Stem Cells

    Using a genome-wide CRISPR-Cas9 screen for effectors of CC-90009 response, researchers uncovered the ILF2 and ILF3 heterodimeric complex as a novel regulator of cereblon expression. Knockout of ILF2/ILF3 decreased the production of full-length cereblon protein via modulating CRBN mRNA alternative splicing, leading to diminished response to CC-90009.
    [Blood]

    Abstract

    Learn more about cGMP-manufactured StemSpanâ„¢-ACF Without Phenol Red for culturing hematopoietic cell therapy products
    PUBLICATIONSRanked by the impact factor of the journal

    XPC
    Deficiency Increases Risk of Hematologic Malignancies through Mutator Phenotype and Characteristic Mutational Signature

    The authors analyzed a unique collection of internal Xeroderma Pigmentosum group C (XP-C) tumor genomes including six leukemias and two sarcomas. They observed a specific mutational pattern and an average of 25-fold increase of mutation rates in XP-C versus sporadic leukemia which they presumed led to its elevated incidence and early appearance.
    [Nature Communications]

    Full Article

    Venetoclax and Pegcrisantaspase for Complex Karyotype Acute Myeloid Leukemia

    Researchers report synergistic anti-leukemic activity of the BCL-2 inhibitor venetoclax and the asparaginase formulation Pegylated Crisantaspase in complex karyotype acute myeloid leukemia in vitro and in vivo.
    [Leukemia]

    Abstract

    VPS4A
    Mutations in Humans Cause Syndromic Congenital Dyserythropoietic Anemia due to Cytokinesis and Trafficking Defects

    Bone marrow studies showed binucleated erythroblasts and erythroblasts with cytoplasmic bridges indicating abnormal cytokinesis and abscission. Circulating red blood cells were found to retain transferrin receptor in their membrane, demonstrating that VPS4A is critical for normal reticulocyte maturation.
    [American Journal of Human Genetics]

    Abstract

    AMD1
    Is Required for the Maintenance of Leukemic Stem Cells and Promotes Chronic Myeloid Leukemic Growth

    Researchers found that leukemic stem cells were highly differentiated, and leukemia progression was severely impaired in the absence of adenosyl methionine decarboxylase (AMD1) in vivo.
    [Oncogene]

    Abstract

    Inhibition of Inflammatory Signaling in Pax5
    Mutant Cells Mitigates B-Cell Leukemogenesis

    Scientists demonstrated that Pax5 heterozygosis, in the presence of infections, resulted in the enhanced production of the inflammatory cytokine interleukin-6, which appeared to act in an autocrine fashion to promote leukemia growth.
    [Scientific Reports]

    Full Article

    The
    Bone Marrow Microenvironment of Pre-B Acute Lymphoblastic Leukemia at Single-Cell Resolution

    The authors used single-cell RNA sequencing to characterize the kinetics of the murine bone marrow microenvironment during B cell acute lymphoblastic leukemia progression. Normal pro- and pre-B cells were found to be the most affected at the earliest stages of disease and this was associated with changes in expression of genes regulated by the AP1-transcription factor complex and regulatory factors NELFE, MYC and BCL11A.
    [Scientific Reports]

    Full Article

    Induction
    of Differentiation of the Acute Myeloid Leukemia Cell Line (HL-60) by a Securinine Dimer

    Scientists found that SN3-L6 induced transdifferentiation of both acute myeloid leukemia and chronic myelogenous leukemia cells but unexpectedly, a new transdifferentiation pathway from acute promyelocytic leukemia cells to morphologically and immunologically normal megakaryocytes and platelets were discovered.
    [Cell Death Discovery]

    Full Article

    CLINICAL RESEARCH

    A
    New Pre-Emptive TKIs Strategy for Preventing Relapse Based on BCR/ABL Monitoring for Ph+ALL Undergoing Allo-HCT: A Prospective Clinical Cohort Study

    The authors evaluated the effect of a new pre-emptive tyrosine kinase inhibitors (TKIs) strategy on relapse in Philadelphia-chromosome-positive acute lymphoblastic leukemia (Ph+ALL) patients with complete remission undergoing allogeneic hematopoietic cell transplantation. Pre-emptive TKIs initiation was based on BCR/ABL molecular monitoring
    [Leukemia]

    Abstract

    Allogeneic
    Hematopoietic Stem Cell Transplant in Rare Hematologic Disorders: A Single Center Experience from Pakistan

    Management of rare hematological disorders pose unique diagnostic and therapeutic challenges due to unusual occurrence and limited treatment options. Investigators retrospectively identified 45 patients receiving matched related donor transplant for rare hematological disorders from 2006 to 2019.
    [Bone Marrow Transplantation]

    Abstract

    Allogeneic
    Stem Cell Transplantation in Poor Prognosis Peripheral T-cell Lymphoma: The Impact of Different Donor Type on Outcome

    Scientists report the outcome of 68 patients with advanced peripheral T-cell lymphoma receiving transplantation from haploidentical or from conventional donors. The four-year overall survival, progression free survival, two-year cumulative incidence of relapse and two-year GVHD and relapse free survival was 75%, 70%, 21%, and 51%, respectively.
    [Bone Marrow Transplantation]

    Full Article


    How have LSCs changed our understanding of myeloid malignancies? Webinar by Dr. Christopher Park, NYU
    REVIEWS

    Uncovering
    the Multifaceted Roles Played by Neutrophils in Allogeneic Hematopoietic Stem Cell Transplantation

    Investigators review the current knowledge on the multiple functions that neutrophils exhibit through the different stages of allogeneic hematopoietic stem cell transplantation, from the hematopoietic stem cell (HSC) mobilization in the donor to the immunological reconstitution that occurs in the recipient following HSC infusion.
    [Cellular & Molecular Immunology]

    Full Article

    Tet2 at the Interface between Cancer and Immunity

    The author focusses on recent findings concerning Tet methylcytosine dioxygenase 2 (Tet2) involvement in lymphoid and myeloid cell development and its functional roles, which may be associated with tumorigenesis.
    [Communications Biology]

    Full Article
    INDUSTRY AND POLICY NEWS

    PharmaTher Expands Patent Portfolio with Filing of US Patent for Novel Use of Psilocybin to Treat Cancer

    PharmaTher, Inc. announced has filed a provisional patent application with the US Patent and Trademark Office outlining the potential novel use of psilocybin to treat cancer, which was discovered by panaceAIâ„¢, their proprietary psychedelic drug repurposing artificial intelligence platform.
    [PharmaTher, Inc. (GlobeNewswire, Inc.)]

    Press Release

    FEATURED EVENT

    Gordon Research Conferences: Stem Cells and Cancer

    May 16 – May 21, 2021
    Lucca, Italy


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    JOB OPPORTUNITIES

    Scientist – Autoimmunity in AML

    Rubius Therapeutics – Cambridge, Massachusetts, United States


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

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    Stanford University – Stanford, California, United States

    Research
    Fellow – Stem Cell Biology & Engineering

    New York Blood Center – New York, New York, United States

    Clinical
    Research Associate – Hematology, Oncology, and Bone Marrow Transplantation

    The University of British Columbia – Vancouver, British Columbia, Canada

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