Muscle Cell News Volume 7.08 | Mar 14 2022

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    2022-03-14 | MUSCN 7.08


    Muscle Cell News by STEMCELL Technologies
    Vol. 7.08 – 14 March, 2022
    TOP STORY

    Injectable Laminin-Biofunctionalized Gellan Gum Hydrogels Loaded with Myoblasts for Skeletal Muscle Regeneration

    Researchers proposed an in situ-crosslinking gellan gum-based hydrogel tethered with a skeletal muscle-inspired laminin-derived peptide RKRLQVQLSIRTC(Q) and encapsulated with skeletal muscle cells.
    [Acta Biomaterialia]

    AbstractGraphical Abstract

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    PUBLICATIONSRanked by the impact factor of the journal

    SIRT1 Regulates Cardiomyocyte Alignment during Maturation

    Scientists reported that SIRT1, the most conserved NAD+-dependent protein deacetylase highly expressed in perinatal heart, played an important role in regulating cardiomyocyte remodeling during development.
    [Journal of Cell Science]

    Abstract

    Glucocorticoids Rapidly Promote YAP Phosphorylation via the cAMP-PKA Pathway to Repress Mouse Cardiomyocyte Proliferative Potential

    Researchers showed that glucocorticoids suppressed cardiomyocyte (CM) proliferation in vitro and in vivo, decreased the total number of CMs, and increased the cross-sectional area of CMs.
    [Molecular and Cellular Endocrinology]

    Abstract

    LncRNA Rian Reduces Cardiomyocyte Pyroptosis and Alleviates Myocardial Ischemia–Reperfusion Injury by Regulating by the miR-17-5p/CCND1 Axis

    The authors investigated the mechanism of the long noncoding RNA Rian in myocardial ischemia–reperfusion injury-induced cardiomyocyte pyroptosis.
    [Hypertension Research]

    Abstract

    Recombinant Human Endostatin Combined with Radiotherapy Promotes Cardiomyocyte Apoptosis in Rats via TGFβ1/Smads/CTGF Signaling Pathway

    Scientists investigated the efficacy of recombinant human endostatin combined with radiation on rat cardiomyocyte apoptosis and the regulatory mechanism of transforming growth factor beta1 /Sma and Mad-related protein 3/connective tissue growth factor signaling.
    [BMC Cardiovascular Disorders]

    Full Article

    TIGAR Deficiency Enhances Skeletal Muscle Thermogenesis by Increasing Neuromuscular Junction Cholinergic Signaling

    Steady-state and stable isotope flux analyses demonstrated increased rates of glycolysis, acetyl-CoA production, acetylcholine levels and density of neuromuscular synaptic junction clusters with enhanced acetylcholine release.
    [eLife]

    Abstract

    Transcriptomic Characterization of the Molecular Mechanisms Induced by RGMa during Skeletal Muscle Nuclei Accretion and Hypertrophy

    RGMa expression patterns and signaling pathways via Neogenin and/or as BMP coreceptors indicated that this axon guidance molecule could also be working in other processes and diseases, including during myogenesis.
    [BMC Genomics]

    Full Article

    Vascular Hyperacetylation Is Associated with Vascular Smooth Muscle Dysfunction in a Rat Model of Non-Obese Type 2 Diabetes

    The authors hypothesized that vascular smooth muscle cell undergoes dysregulation in advanced type 2 diabetes mellitus which was associated with vascular hyperacetylation.
    [Molecular Medicine]

    Full Article

    Mouse Aortic Biomechanics Are Affected by Short-Term Defective Autophagy in Vascular Smooth Muscle Cells

    Researchers investigated whether aortic stiffness was modulated by a shorter duration of autophagy deficiency.
    [Journal of Physiological Sciences]

    Full Article

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    REVIEWS

    Metabolic Determinants of Cardiomyocyte Proliferation

    Scientists provide knowledge of the regulatory mechanisms that control substrate partitioning to coordinate biosynthesis with energy provision could be leveraged to prompt or augment cardiomyocyte division and to promote cardiac repair.
    [Stem Cells]

    AbstractGraphical Abstract

    Single Skeletal Muscle Fiber Mechanical Properties: A Muscle Quality Biomarker of Human Aging

    Investigators summarize the changes in active and passive mechanical properties at the single muscle cell level in older skeletal muscles.
    [European Journal of Applied Physiology]

    Abstract

    INDUSTRY AND POLICY NEWS

    Bridgebio Pharma Announces Positive Phase II Data for Limb-Girdle Muscular Dystrophy Type 2i (lgmd2i)

    BridgeBio Pharma, Inc. announced positive data from the Phase II study of BBP-418 in patients with lgmd2i.
    [BridgeBio Pharma, Inc.]

    Press Release

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    JOB OPPORTUNITIES

    Staff Scientist 1 – Aging Physiology and Pathology

    NIH National Institute on Aging – Baltimore, Maryland, United States

    Histologist – Immunofluorescence and Immunohistochemistry

    Sarepta Therapeutics Inc. – Columbus, Ohio, United States

    Postdoctoral Fellow – Neurodegeneration

    Institute of Molecular Biology and Genetics – Valladolid, Spain

    Research Scientist – Cardiobiology

    Ksilink – Strasbourg, France

    Postdoctoral Position – Skeletal Muscle Stem Cells

    Institut National de la Sant̩ et de la Recherche M̩dicale РLyon, France

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