ESC & iPSC News Volume 19.13 | Apr 10 2024

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    2024-04-10 | ESC 19.13


    ESC & iPSC News by STEMCELL Technologies
    Vol. 19.13 – 10 April, 2024
    TOP STORY

    Human iPSC 4R Tauopathy Model Uncovers Modifiers of Tau Propagation

    The authors engineered hiPSC-derived neuronal lines to express 4R Tau and 4R Tau carrying the P301S MAPT mutation when differentiated into neurons.
    [Cell]

    Full ArticlePress ReleaseGraphical Abstract
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    Oct4 Controls Basement Membrane Development during Human Embryogenesis

    Using the post-implantation amniotic sac embryoid, scientists delineated basement membrane (BM) assembly upon post-implantation development and BM disassembly during primitive streak cell dissemination.
    [Developmental Cell]

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    Reconstructing Axial Progenitor Field Dynamics in Mouse Stem Cell-Derived Embryoids

    Investigators combined continuous Cas9-based molecular recording with a mESC-based model of the embryonic trunk to build single-cell phylogenies that described the behavior of transient, multipotent neuro-mesodermal progenitors as they committed into neural and somitic cell types.
    [Developmental Cell]

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    The Dynamic Landscape of Enhancer-Derived RNA during Mouse Early Embryo Development

    Scientists presented a comprehensive eRNA atlas by systematically integrating publicly available datasets of mouse early embryos. They characterized the transcriptional and regulatory network of eRNAs and showed that different embryo developmental stages had distinct eRNA expression and regulatory profiles.
    [Cell Reports]

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    The Effect of Trisomic Chromosomes on Spatial Genome Organization and Global Transcription in Embryonic Stem Cells

    How aneuploidy affects spatial genome organization remains poorly understood. Researchers addressed this question by utilizing the previously established isogenic wild-type and trisomic mouse embryonic stem cells
    [Cell Proliferation]

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    MAGIK: A Rapid and Efficient Method to Create Lineage-Specific Reporters in Human Pluripotent Stem Cells

    A modified mRNA (ModRNA)-based Activation for Gene Insertion and Knockin (MAGIK) method operated in two steps: first, it used a Cas9-2A-p53DD modRNA with a mini-donor plasmid; second a deactivated Cas9 activator modRNA and a ‘dead’ guide RNA were used to temporarily activate the targeted gene.
    [Stem Cell Reports]

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    Profiling the Role of m6A Effectors in the Regulation of Pluripotent Reprogramming

    To explore the role of the N6-methyladenosine (m6A) modification in pluripotent reprogramming, scientists used RNA-seq to map m6A effectors in human iPSCs, fibroblasts, and H9 ESCs, as well as in mESCs and fibroblasts.
    [Human Genomics]

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    Substrate Elasticity Does Not Impact DNA Methylation Changes during Differentiation of Pluripotent Stem Cells

    The authors cultured iPSCs on tissue culture plastic and polydimethylsiloxane with different Young’s modulus to investigate the sequel on growth and differentiation toward endoderm, mesoderm, and ectoderm.
    [Cytotherapy]

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    Generation of Two iPSC Lines From Patients with Inherited Central Core Disease and Concurrent Malignant Hyperthermia Caused by Dominant Missense Variants in the RYR1 Gene

    Scientists generated iPSC lines from two patients with central core disease and malignant hyperthermia caused by dominant RYR1 variants within the central region of the protein.
    [Stem Cell Research]

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    REVIEWS

    Clinical Translation of Pluripotent Stem Cell-Based Therapies: Successes and Challenges

    Investigators highlight successes from some of the hPSC-based trials reporting early signs of efficacy and discuss common challenges in the clinical translation of cell therapies.
    [Development]

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    INDUSTRY AND POLICY NEWS

    Little Change in Japan’s Research Sector 10 Years after Stem Cell Fraud

    Ten years after the STAP stem cell scandal, structural problems that led to the scandal persist, leaving ample room for researchers to tamper with research data, experts say.
    [The Japan Times]

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