ESC & iPSC News Volume 18.33 | Aug 23 2023

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    2023-08-23 | ESC 18.32


    ESC & iPSC News by STEMCELL Technologies
    Vol. 18.33 – 23 August, 2023
    TOP STORY

    Transient Naive Reprogramming Corrects hiPS Cells Functionally and Epigenetically

    Investigators characterized the persistence and emergence of epigenetic memory and aberrations that emerge during reprogramming by performing genome-wide DNA methylation profiling throughout primed and naive reprogramming of human somatic cells to hiPSCs.
    [Nature]

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    Yolk Sac Cell Atlas Reveals Multiorgan Functions During Human Early Development

    The authors reconstructed trajectories from the yolk sac hemogenic endothelium to early hematopoietic stem and progenitor cells.
    [Science]

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    Young LINE-1 Transposon 5′ UTRs Marked by Elongation Factor ELL3 Function As Enhancers to Regulate Naïve Pluripotency in Embryonic Stem Cells

    Researchers showed that a subset of young LINE-1s, L1Md_Ts, were marked by the RNA polymerase II elongation factor ELL3, and functioned as enhancers in mouse ESCs.
    [Nature Cell Biology]

    Abstract

    Evaluation of the Determinants for Improved Pluripotency Induction and Maintenance by Engineered SOX17

    SOX2, SOX17, and SOX17FNV were all able to bind nucleosome core particles in vitro, which is a prerequisite for pioneer transcription factors.
    [Nucleic Acids Research]

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    Graphical
    Abstract

    NELFA and BCL2 Induce the 2C-Like State in Mouse Embryonic Stem Cells in a Chemically Defined Medium

    Researchers reported that the overexpression of negative elongation factor A (Nelfa), a maternally provided factor, enhanced the conversion of ESCs into 2C-like cells in chemically defined conditions, while the deletion of endogenous Nelfa did not block this transition.
    [Cell Proliferation]

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    A Novel Protocol to Derive Cervical Motor Neurons from Induced Pluripotent Stem Cells for Amyotrophic Lateral Sclerosis

    Scientists reported a rapid and simple protocol to differentiate motor neurons in monolayer culture using small molecules, which led to nearly pure neural stem cells in six days, robust OLIG2+ pMNs in 12 days, enriched CHAT+ cervical spinal MNs.
    [Stem Cell Reports]

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    c-JUN Is a Barrier in hESC to Cardiomyocyte Transition

    Investigators used the in vitro differentiation of human pluripotent stem cells into cardiomyocytes to study the role of c-JUN. The knockout of c-JUN improved cardiomyocyte generation, as determined by the number of TNNT2+ cells.
    [Life Science Alliance]

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    Enhancing Viability of Human Embryonic Stem Cells during Cryopreservation via RGD-REP-Mediated Activation of FAK/AKT/FoxO3a Signaling Pathway

    The Arginine-Glycine-Aspartate motif was incorporated into a recombinant elastin-like peptide (REP). hESCs were treated with REP containing RGD motif during suspension and cryopreservation, and the survival rate was analyzed.
    [Tissue Engineering And Regenerative Medicine]

    Abstract

    Deletion of p66Shc Dysregulates ERK and STAT3 Activity in Mouse Embryonic Stem Cells, Enhancing Their Naive-Like Self-Renewal in the Presence of Leukemia Inhibitory Factor

    Researchers hypothesized that p66Shc could act as a negative regulator of ERK activity during embryonic development, antagonizing early lineage commitment. To explore the role of p66Shc in stem cell self-renewal and differentiation, they created a p66Shc knockout murine ESC line.
    [Stem Cells And Development]

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    REVIEWS

    Advances in Corneal Regenerative Medicine with iPS Cells

    Investigators describe the progress and challenges of corneal epithelial and endothelial regenerative medicine and the promising future of corneal regenerative medicine with iPS cells.
    [Japanese Journal Of Ophthalmology]

    Abstract
    INDUSTRY AND POLICY NEWS

    What Is an Embryo? Scientists Say Definition Needs to Change

    It is time for a redefinition of the human embryo, a team of researchers has proposed. Advances in recent years have shown that human stem cells can be used to make embryo-like structures, called embryo models, that can recreate some features of early embryo development.
    [Nature News]

    Press Release

    UTHSC Researcher Awarded $1.56 Million for Accelerating Progress in Stem Cell Treatment of PTOA

    Hongsik Jake Cho, PhD, associate professor at the University of Tennessee Health Science Center (UTHSC), recently received a $1.56 million Rehabilitation Research and Development Award from the US Department of Veterans Affairs to research next generation treatments for post-traumatic osteoarthritis.
    [University of Tennessee Health Science Center]

    Press Release
    FEATURED EVENT

    Cell Symposia: Structural Biology from the Nanoscale to Cellular Mesoscale

    November 3 – 5, 2023
    Huangshan, China

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    JOB OPPORTUNITIES

    Senior Scientist – Motor Neuron Disease iPS Platform

    LifeArc – Stevenage, England, United Kingdom

    Bioinformatics Scientist – Circulating Trophoblasts Profiling

    RareCyte – Seattle, Washington, United States

    Faculty Position – Neurodegenerative Science

    Van Andel Institute – Grand Rapids, Michigan, United States

    Research Associate – Recombinant Protein

    Creative Biolabs – New York, New York, United States

    Postdoctoral Position – Engineering of iPSC-NK cells

    Technical University of Denmark – Kongens Lyngby, Denmark

    > See All Jobs

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