ESC & iPSC News Volume 15.37 | Sep 30, 2020

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    2020-09-30 | ESC 15.37


    ESC & iPSC News by STEMCELL Technologies
    Vol. 15.37 – 30 September, 2020
    TOP STORY

    Neuronal Defects in a Human Cellular Model of 22q11.2 Deletion Syndrome

    Using electrophysiology and live imaging, the authors identified defects in spontaneous neuronal activity and calcium signaling in both organoid- and 2D-derived cortical neurons.

    Abstract
    Full ArticlePress Release


    Andreas Kurtz spearheaded a global stem cell registry to make hPSC data more accessible. Watch the webinar.
    PUBLICATIONSRanked by the impact factor of the journal

    Global
    Hyperactivation of Enhancers Stabilizes Human and Mouse Naive Pluripotency through Inhibition of CDK8/19 Mediator Kinases

    The authors report that multiple features of the naive state in human and mouse PSCs could be recapitulated without affecting FGF–MEK signaling or global DNA methylation.
    [Nature Cell Biology]

    Abstract

    Transplanted
    Microvessels Improve Pluripotent Stem Cell–Derived Cardiomyocyte Engraftment and Cardiac Function after Infarction in Rats

    Ready-made microvessels promoted a sixfold increase in human iPSC–derived cardiomyocyte (hiPSC-CM) survival and superior functional recovery when compared to hiPSC-CMs transplanted alone or cotransplanted with a suspension of dissociated endothelial cells in infarcted rat hearts.
    [Science Translational Medicine]

    Abstract

    LRP6 Downregulation Promotes Cardiomyocyte Proliferation and Heart Regeneration

    Researchers investigated the role of lipoprotein receptor-related protein 6 (LRP6) in heart repair through regulation of cardiomyocyte proliferation. Lrp6 deficiency increased cardiomyocyte cell cycle activity in neonatal, juvenile and adult mice.
    [Cell Research]

    Full Article

    Engineering
    Domain-Inlaid SaCas9 Adenine Base Editors with Reduced RNA Off-Targets and Increased On-Target DNA Editing

    The authors compared the editing profile of circularly permuted and domain-inlaid Cas9 base editors, and found that on-target editing is largely maintained following their intradomain insertion, but that structural permutation of the adenine base editors can affect differing RNA off-target events.
    [Nature Communications]

    Full Article

    Development
    of an ObLiGaRe Doxycycline Inducible Cas9 System for Pre-Clinical Cancer Drug Discovery

    The generation of a tightly controlled ObLiGaRe doxycycline inducible SpCas9 (ODInCas9) transgene and its use in targeted ObLiGaRe resulted in functional integration into both human and mouse cells culminating in the generation of the ODInCas9 mouse.
    [Nature Communications]

    Full Article

    Regulation
    of Neuronal Commitment in Mouse Embryonic Stem Cells by the Reno1/Bahcc1 Locus

    Scientists used RNA‐seq and computational analysis to prioritize long non-coding RNAs that may regulate commitment of pluripotent cells to a neuronal fate and perturbed their expression prior to neuronal differentiation.
    [EMBO Reports]

    AbstractGraphical Abstract

    Direct
    Reprogramming of Human Fetal- and Stem Cell-Derived Glial Progenitor Cells into Midbrain Dopaminergic Neurons

    Investigators showed proof of concept of human glial progenitor cells (hGPCs) conversion using fetal cells and also established a renewable and reproducible stem cell-based hGPC system for direct neural conversion in vitro.
    [Stem Cell Reports]

    Full ArticleGraphical Abstract

    Context-Dependent
    Requirement of Euchromatic Histone Methyltransferase Activity during Reprogramming to Pluripotency

    Scientists showed that chemical inhibition of the methyltransferases EHMT1 and EHMT2 counteracts iPSC formation in an enhanced reprogramming system in the presence of ascorbic acid, an effect that is dependent on EHMT1.
    [Stem Cell Reports]

    Full ArticleGraphical Abstract

    Modeling
    the Function of BAX and BAK in Early Human Brain Development Using iPSC-Derived Systems

    Researchers generated BAX/BAK double knockout human-induced pluripotent stem cells (hiPSCs), hiPSC-derived neural progenitor cells, neural rosettes, and cerebral organoids to uncover the effects of BAX and BAK deletion in an in vitro model of early human brain development.
    [Cell Death & Disease]

    Full Article

    12-O-Tetradecanoylphorbol-13-Acetate
    Increases Cardiomyogenesis through PKC/ERK Signaling

    The authors showed that 12-O-tetradecanoylphorbol-13-acetate could be applied as a cardiomyogenesis-promoting factor for the differentiation of mouse embryonic stem cells in vitro.
    [Scientific Reports]

    Full Article

    Multisite
    Studies for Validation and Improvement of a Highly Efficient Culture (HEC) Assay for Detection of Undifferentiated Human Pluripotent Stem Cells Intermingled in Cell Therapy Products

    Multisite experiments confirmed that the lower limit of detection was 0.001% under various conditions to which the human iPSC lines and culture medium/substrate were subjected.
    [Cytotherapy]

    Full Article


    Webinar on Modeling arrhythmias using hPSC-derived cardiomyocytes
    REVIEWS

    “Betwixt
    Mine Eye and Heart a League Is Took”: The Progress of Induced Pluripotent Stem-Cell-Based Models of Dystrophin-Associated Cardiomyopathy Review

    Cardiovascular cells derived from muscular dystrophy patients’ iPSCs are well suited to mimic dystrophin-associated cardiomyopathy and hold great promise for the development of future fully effective therapies. This article conveys the realities of employing precision disease models of dystrophin-associated cardiomyopathy.
    [International Journal of Molecular Sciences]

    Full Article

    INDUSTRY AND POLICY NEWS

    Qihan
    Biotech Expands Scientific Advisory Board and Establishes Scientific Advisory Committees

    Qihan Biotech has announced the expansion of its Scientific Advisory Board to include a total of 12 world-renowned experts in synthetic biology, regenerative medicine, transplantation immunology and cell therapy, as well as the formation of several Scientific Advisory Committees.
    [Qihan Biotech (Businesswire, Inc.)]

    Press Release

    FEATURED EVENT

    8th
    International Conference on Stem Cell Engineering 2021

    July 8 – July 10, 2021
    Boston, Massachusetts, United States


    > See All Events

    JOB OPPORTUNITIES

    Postdoctoral Position – Neuroscience, Stem Cell Biology, Molecular Genetics and Bioinformatics

    Albert Einstein College of Medicine – New York, New York, United States


    Faculty Position – Stem Cells and Regenerative Medicine

    Baylor College of Medicine – Houston, Texas, United States

    Faculty Member – Hematology

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

    Research Associate – Stem Cell Differentiation and Cancer Initiation

    University of Miami – Miami, Flordia, United States

    Faculty Member – Cellular, Developmental, and Stem Cell Biology

    Icahn School of Medicine at Mount Sinai – New York, New York, United States

    > See All Jobs

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