Muscle Cell News Volume 7.28 | Aug 15 2022

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    2022-08-14 | MUSCN 7.28


    Muscle Cell News by STEMCELL Technologies
    Vol. 7.28 – 15 August, 2022
    TOP STORY

    CRISPR Screening Uncovers a Central Requirement for HHEX in Pancreatic Lineage Commitment and Plasticity Restriction

    HHEX cooperated with the pioneer transcription factors (TFs) FOXA1, FOXA2 and GATA4, shared by both pancreas and liver differentiation programmes, to promote pancreas commitment, and this cooperation restrained the shared TFs from activating alternative lineages.
    [Nature Cell Biology]

    Abstract
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    PUBLICATIONSRanked by the impact factor of the journal

    Physiological Calcium Combined with Electrical Pacing Accelerates Maturation of Human Engineered Heart Tissue

    Investigators presented a method whereby maturation of human induced pluripotent stem cells-CMs could be accelerated by simultaneous application of physiological Ca2+ and frequency-ramped electrical pacing in culture.
    [Stem Cell Reports]

    Full Article

    Functional Human Cell-Based Vascularized Cardiac Tissue Model for Biomedical Research and Testing

    To improve the maturity and physiological relevance of hiPSC-derived cardiomyocytes, scientists co-cultured them with preconstructed vascular-like networks to form a functional, human cell-based cardiac tissue model.
    [Scientific Reports]

    Full Article

    Fibroblast-Derived Exosomal miRNA-133 Promotes Cardiomyocyte-Like Differentiation

    Researchers investigated the role of exosomal miRNA-133 secreted by cardiac fibroblasts in promoting cardiomyocyte differentiation.
    [Acta Histochemica]

    Abstract

    Muscle Degeneration in Chronic Massive Rotator Cuff Tears of the Shoulder: Addressing the Real Problem Using a Graphene Matrix

    The authors established understandings on the effects of graphene nanoplatelets matrices on muscle regeneration and inhibition of fat formation in vitro and the ability of GnP matrices to reverse muscle degenerative changes in vivo following an massive rotator cuff tears.
    [Proceedings of the National Academy of Sciences of the United States of America]

    Abstract

    Sex-Dependent Role of Pannexin 1 in Regulating Skeletal Muscle and Satellite Cell Function

    Using global Panx1 knockout mice, scientists demonstrated that Panx1 loss reduced muscle fiber size and strength, decreased satellite cell (SC) number, and altered early SC differentiation and myoblast fusion in male, but not in female mice.
    [Journal of Cellular Physiology]

    Abstract

    Nitrite Lowers the Oxygen Cost of ATP Supply in Cultured Skeletal Muscle Cells by Stimulating the Rate of Glycolytic ATP Synthesis

    The authors reported the acute effects of sodium nitrite on the bioenergetic behaviour of cultured rat myocytes.
    [PLoS One]

    Full Article

    Akt1-Dependent Expression of Angiopoietin 1 and 2 in Vascular Smooth Muscle Cells Leads to Vascular Stabilization

    The silencing of Akt1 in vascular smooth muscle cells led to the downregulation of angiopoietin 1 and the upregulation of angiopoietin 2.
    [Experimental and Molecular Medicine]

    Full Article

    Thoracic Perivascular Adipose Tissue Inhibits VSMC Apoptosis and Aortic Aneurysm Formation in Mice via the Secretome of Browning Adipocytes

    Scientists investigated the effect of thoracic perivascular adipose tissue (T-PVAT) transplantation on aortic aneurysm formation and the impact of T-PVAT on vascular smooth muscle cells.
    [Acta Pharmacologica Sinica]

    Abstract

    Apolipoprotein A5 Ameliorates MCT-Induced Pulmonary Hypertension by Inhibiting ER Stress in a GRP78 Dependent Mechanism

    The authors showed that apolipoprotein A5 had a protective effect in pulmonary vessels and evaluated the mechanism.
    [Lipids in Health and Disease]

    Full Article

    Hypoxia-Induced miR-182-5p Regulates Vascular Smooth Muscle Cell Phenotypic Switch by Targeting RGS5

    Researchers investigated the function of miR-182-5p in vascular smooth muscle cells phenotypic switch.
    [Cell Biology International]

    Abstract
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    REVIEWS

    The Complicated Lives of GPCRs in Cardiac Fibroblasts

    The authors review on the relatively less well studied effects of G protein-coupled receptors (GPCRs) in cardiac fibroblasts, focusing on key signalling events involved in the activation and differentiation of these cells.
    [American Journal of Physiology-Cell Physiology]

    Abstract
    INDUSTRY AND POLICY NEWS

    Aro Biotherapeutics Receives FDA Orphan Drug Designation for ABX1100 for the Treatment of Pompe Disease

    Aro Biotherapeutics announced that the FDA granted Orphan Drug Designation for ABX1100, an investigational Centyrin-siRNA conjugate that targets the Gys1 gene in the muscle, for the treatment of Pompe disease.
    [Aro Biotherapeutics]

    Press Release

    LianBio Completes Enrollment in Pivotal Phase III EXPLORER-CN Trial of Mavacamten in Chinese Obstructive Hypertrophic Cardiomyopathy Patients

    LianBio announced the completion of enrollment in the Phase III EXPLORER-CN clinical study of mavacamten in Chinese patients with symptomatic obstructive hypertrophic cardiomyopathy.
    [LianBio]

    Press Release
    FEATURED EVENT

    EHA Research Conference 2022

    October 17 – 20, 2022
    Palermo, Italy

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    JOB OPPORTUNITIES

    Research Associates – Center for Perioperative Organ Protection

    Duke University – Durham, North Carolina, United States

    Postdoctoral Fellowship – Translational Cardiovascular Medicine

    University of Alberta – Edmonton, Alberta, Canada

    Postdoctoral Scientist Positions – Tissue Engineering

    Yale University – New Haven, Connecticut, United States

    Research Scientist – Cardiovascular & Heart Research

    Nationwide Children’s Hospital – Columbus, Ohio, United States

    Research Scientist – Inflammation

    Gilead Sciences, Inc. – Foster City, California, United States

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