Hematopoiesis News Volume 12.32 | Aug 17 2021

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    2021-08-17 | HN 12.32


    Hematopoiesis News by STEMCELL Technologies
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    Vol. 12.32 – 17 August, 2021

    Hsf1 Promotes Hematopoietic Stem Cell Fitness and Proteostasis in Response to Ex Vivo Culture Stress and Aging

    Investigators determined that ex-vivo-cultured mouse and human HSCs rapidly increased protein synthesis. This challenge to HSC proteostasis was associated with nuclear accumulation of Hsf1, and deletion of Hsf1 impaired HSC maintenance ex vivo.
    [Cell Stem Cell]

    Full ArticleGraphical Abstract

    Request your free copy of the 'Frequencies of Cell Types in Human Peripheral Blood' Wallchart
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    Dopamine Signaling Regulates Hematopoietic Stem and Progenitor Cell Function

    The authors showed that sympathetic nerve-derived dopamine directly controlled hematopoietic stem and progenitor cell behavior through D2-subfamily dopamine receptors.
    [Blood]

    Abstract

    Human T Cells Engineered with a Leukemia Lipid-Specific TCR Enables Donor-Unrestricted Recognition of CD1c-Expressing Leukemia

    Scientists showed that human T cells engineered to express an mLPA-specific TCR, targeted diverse CD1c-expressing leukemia blasts in vitro and significantly delayed the progression of three models of leukemia xenograft in NSG mice, an effect that was boosted by mLPA-cellular immunization.
    [Nature Communications]

    Full Article

    The Evolution of Hematopoietic Cells under Cancer Therapy

    Exploiting the mutational footprint of some chemotherapies, researchers explored their influence on the evolution of hematopoietic cells.
    [Nature Communications]

    Full Article

    3-Ketodihydrosphingosine Reductase Maintains ER Homeostasis and Unfolded Protein Response in Leukemia

    Using a sphingolipid network focused CRISPR/Cas9 library screen, scientists identified an endoplasmic reticulum enzyme, 3-Ketodihydrosphingosine reductase, to be essential for leukemia cell maintenance.
    [Leukemia]

    Abstract

    Regulatory T Cells Promote the Stemness of Leukemia Stem Cells through IL10 Cytokine-Related Signaling Pathway

    The increased stemness of acute myeloid leukemia (AML) cells promoted by regulatory T cells (Tregs) was verified in vitro and in vivo, and researchers found that blocking the interaction between Tregs and AML cells may be a new approach to target leukemia stem cells in AML treatment.
    [Leukemia]

    Abstract

    RSPO2 Inhibits BMP Signaling to Promote Self-Renewal in Acute Myeloid Leukemia

    Investigators showed that acute myeloid leukemia cells secreted the stem cell growth factor R-spondin 2 (RSPO2) to promote their self-renewal and prevent cell differentiation.
    [Cell Reports]

    Full ArticleGraphical Abstract

    Targeting of IL-10R on Acute Myeloid Leukemia Blasts with Chimeric Antigen Receptor-Expressing T Cells

    The authors found that interleukin-10 receptor (IL-10R) was overexpressed in most acute myeloid luekemia cells, and played an important role in promoting the stemness of leukemia cells.
    [Blood Cancer Journal]

    Full Article

    Acquired JAK2 Mutations Confer Resistance to JAK Inhibitors in Cell Models of Acute Lymphoblastic Leukemia

    Using in vitro models of JAK2r B-ALL, JAK2 p.G993A conferred resistance to six type-I JAK inhibitors and the type-II JAK inhibitor, CHZ-868.
    [npj Precision Oncology]

    Full Article

    The Establishment of a Prognostic Scoring Model Based on the New Tumor Immune Microenvironment Classification in Acute Myeloid Leukemia

    Patients’ gene expression profile from seven GEO databases was normalized after removing the batch effect. Tumor immune microenvironment (TIME) cell components were explored through Xcell tools and then hierarchically clustered to establish TIME classification.
    [BMC Medicine]

    Full Article

    Importance of Bcl-2-Family Proteins in Murine Hematopoietic Progenitor and Early B Cells

    Investigators suggested that the main role of Bim in hematopoietic cells was the neutralization of Mcl-1, identified a number of likely molecular events during the maintenance of survival and the induction of apoptosis in mouse hematopoietic progenitor cells, and provided data on the regulation of expression and importance of these proteins during differentiation along the B cell lineage.
    [Cell Death & Disease]

    Full Article

    Brentuximab Vedotin in Combination with Nivolumab in Relapsed or Refractory Hodgkin Lymphoma: Three-Year Study Results

    This Phase I-II study evaluated brentuximab vedotin (BV) combined with nivolumab (Nivo) as first salvage therapy in patients with relapsed/refractory (r/r) classical Hodgkin lymphoma (cHL). BV and Nivo with staggered or concurrent dosing were active and well tolerated when used as first salvage therapy in patients with r/r cHL.
    [Blood]

    Abstract

    Loss of Erythroblasts in Acute Myeloid Leukemia Causes Iron Redistribution with Clinical Implications

    Scientists studied iron metabolism in patients with acute myeloid leukemia at diagnosis and explored the mechanisms involved using the syngeneic MLL-AF9–induced AML mouse model.
    [Blood Advances]

    Full ArticleGraphical Abstract

    Virtual Conference Exhibition: Pluripotent Stem Cells
    REVIEWS

    Stem Cells for Aging-Related Disorders

    The authors explore the potential of transplanting exogenous umbilical cord blood cells and mobilizing host resident stem cells in vascular dementia and aging.
    [Stem Cell Reviews and Reports]

    Abstract

    Cardiac Complications Associated with Hematopoietic Stem-Cell Transplantation

    The association between hematopoietic stem-cell transplantation and early- and late-onset cardiotoxicity remains controversial as these cardiac complications, including acute heart failure and arrhythmia, such as atrial fibrillation, can occasionally be lethal.
    [Bone Marrow Transplantation]

    Abstract

    INDUSTRY AND POLICY NEWS

    IN8bio Completes Dosing of First Cohort in Phase I Clinical Trial with Allogeneic Gamma Delta T-Cell Therapy in Leukemia Patients Undergoing Hematopoietic Stem Cell Transplant

    IN8bio, Inc. announced completion of dosing of the first patient cohort in a Phase I clinical trial of INB-100, a donor-derived gamma-delta T cell therapeutic in development for patients with leukemia undergoing haploidentical stem cell transplant.
    [IN8bio, Inc.]

    Press Release

    Fulcrum Therapeutics Announces Positive Interim Results from Phase I Healthy Adult Volunteer Trial of FTX-6058 for Sickle Cell Disease

    Fulcrum Therapeutics, Inc. announced positive interim results from the ongoing single- and multiple-ascending dose Phase I trial with FTX-6058 in healthy adult volunteers.
    [Fulcrum Therapeutics, Inc.]

    Press Release

    Allogene Therapeutics Receives FDA Orphan Drug Designation (ODD) for ALLO-715 for the Treatment of Multiple Myeloma (MM)

    Allogene Therapeutics, Inc., a clinical-stage biotechnology company developing allogeneic CAR T therapies for cancer, announced that the US FDA has granted ODD to ALLO-715 for the treatment of MM.
    [Allogene Therapeutics, Inc.]

    Press Release

    Medexus Completes Enrollment in Phase IV Clinical Trial of IXINITY® Targeting Label Expansion for Pediatric Hemophilia B Patients

    Medexus Pharmaceuticals, Inc. announced that is has completed enrollment in its Phase IV Clinical Trial of IXINITY®, targeting label expansion for pediatric hemophilia B patients.
    [Medexus Pharmaceuticals, Inc.]

    Press Release

    FEATURED EVENT

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    October 12 – 14, 2021
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    JOB OPPORTUNITIES

    Faculty Position – Cancer Biology and Signal Transduction

    Purdue University – West Lafayette, Indiana, United States

    Research Associate – Cell and Regenerative Biology

    University Of Wisconsin–Madison – Madison, Wisconsin, United States

    Research Fellow – Inflammasome Sensor NLRP3

    Queen’s University Belfast – Belfast, Northern Ireland, United Kingdom

    Postdoctoral Associate – CAR T-Cell Studies

    Baylor College of Medicine – Houston, Texas, United States

    Research Assistant – Pharmacology

    The Scripps Research Institute – La Jolla, California, United States

    > See All Jobs

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