ESC & iPSC News Volume 17.38 | Oct 5 2022

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    2022-10-05 | ESC 17.38


    ESC & iPSC News by STEMCELL Technologies
    Vol. 17.38 – 5 October, 2022
    TOP STORY

    Exploration of Nuclear Body-Enhanced Sumoylation Reveals That PML Represses 2-Cell Features of Embryonic Stem Cells

    The authors demonstrated that promyelocytic leukemia protein (PML) was essential for oxidative stress-driven partner SUMO2/3 conjugation in mESCs or leukemia, a process often followed by their poly-ubiquitination and degradation.
    [Nature Communications]

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    Scientific resources to support your organoids research. Learn More!
    PUBLICATIONSRanked by the impact factor of the journal

    Super-Enhancers Conserved within Placental Mammals Maintain Stem Cell Pluripotency

    Researchers performed comprehensive comparative epigenomic and transcription factor binding analyses among pigs, humans, and mice to identify pluripotency-associated super-enhancers.
    [Proceedings of the National Academy of Sciences of the United States of America]

    Abstract

    Engineering of Immune Checkpoints B7-H3 and CD155 Enhances Immune Compatibility of MHC-I−/− iPSCs for β Cell Replacement

    By profiling the relevant natural killer-activating ligands on iPSCs during in vitro differentiation into pancreatic β cells, scientists found that they expressed high levels of B7-H3 and CD155.
    [Cell Reports]

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    PI3Kβ-Regulated β-Catenin Mediates EZH2 Removal from Promoters Controlling Primed Human ESC Stemness and Primitive Streak Gene Expression

    To explore the transition of hESCs toward differentiated cells, the activity and expression of the ubiquitous phosphatidylinositol 3-kinase, PI3Kα and PI3Kβ, were modulated in primed hESCs.
    [Stem Cell Reports]

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    TGFβ Superfamily Signaling Regulates the State of Human Stem Cell Pluripotency and Capacity to Create Well-Structured Telencephalic Organoids

    Scientists demonstrated that a major contributor to cortical organoid quality was the way hPSCs were maintained prior to differentiation. Optimal results were achieved using particular fibroblast-feeder-supported hPSCs rather than feeder-independent cells.
    [Stem Cell Reports]

    Full ArticlePress ReleaseGraphical Abstract

    The Kleisin Subunits of Cohesin Are Involved in the Fate Determination of Embryonic Stem Cells

    By knocking down REC8, RAD21, or the non-kleisin cohesin subunit SMC3 in mESCs, researchers showed that reduction in cohesin level impaired their self-renewal.
    [Molecules and Cells]

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    Identification of Stable Housekeeping Genes for Induced Pluripotent Stem Cells and -Derived Endothelial Cells for Drug Testing

    The authors utilized transcriptome sequencing data of iPSC and derived endothelial iPSC with or without CRISPR-Cas9 induced translocation to identify a panel of 15 candidate housekeeping genes.
    [Scientific Reports]

    Full Article

    Dynamic Cytosolic Foci of DPPA4 in Human Pluripotent Stem Cells

    Co-immunoprecipitation studies highlighted novel protein interactors, many of which were also found in the cytosol and were implicated in mRNA processing and RNA and protein transport between the cytosol and the nucleus.
    [Tissue and Cell]

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    High Glucose Impairs Osteogenic Differentiation of Embryonic Stem Cells via Early Diversion of Beta-Catenin from Forkhead Box O to T Cell Factor Interaction

    Investigators differentiated mESCs within osteogenic-inducing media containing either high or low levels of D-glucose and performed time course analyses to study the influence of high glucose on early and late bone cell differentiation.
    [Birth Defects Research]

    Full Article
    An ISSCR 2022 Innovation Showcase Webinar: Robust Workflows for the Expansion of PSCs in 3D Suspension Culture, presented by Dr. Eric Jervis. Click to Watch Now.
    REVIEWS

    Human Cellular Models for Retinal Disease: From Induced Pluripotent Stem Cells to Organoids

    The authors review models of human retinal disease, including animal models, and hPSC–derived models for their role in gene discovery and treatment of inherited retinal diseases .
    [Retina-the Journal of Retinal and Vitreous Diseases]

    Abstract
    INDUSTRY AND POLICY NEWS

    Kadimastem Receives Approval of Patent Registration for Its Cell Selection and Enrichment Technology Used to Develop Its IsletRx Treatment for Diabetes in a Third Territory

    Kadimastem Ltd. has been granted its third patent approval for the company’s cell selection and enrichment technology and its use in the production of IsletRx, the company’s treatment and potential cure for diabetes.
    [Kadimastem ltd.]

    Press Release

    CIRM Awards $1.3 Million to Greenstone Bio for Innovative Cardiovascular Stem Cell Research

    Greenstone Biosciences, Inc., a commercial-stage computational biology company, announces that the company has received a DISC0 grant funding from the California Institute of Regenerative Medicine (CIRM).
    [Greenstone Biosciences, Inc. (BioSpace.com)]

    Press Release
    FEATURED EVENT

    Organoids as Models of Development and Disease, and Their Impact on Drug Discovery

    February 5 – 8, 2023
    Keystone, Colorado, United States

    > See All Events

    JOB OPPORTUNITIES

    Research Fellow – CAR T Cells from iPSCs

    Memorial Sloan Kettering Cancer Center – New York, New York, United States

    Associate Research Scientist – Pediatric Cardiology

    Yale University – New Haven, Connecticut, United States

    Senior Investigator – Stem Cell Biology

    NIH – Research Triangle Park, North Carolina, United States

    Scientist – Regenerative Medicine in Atherosclerosis

    InVitro Cell Research, LLC – Fort Lee, New Jersey, United States

    Postdoctoral Position – Stem Cell Organoids

    Syracuse University – Syracuse, New York, United States

    > See All Jobs

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