ESC & iPSC News Volume 16.22 | Jun 9 2021

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    2021-06-08 | ESC & iPSC 16.22


    ESC & iPSC News by STEMCELL Technologies
    Vol. 16.22 – 9 June, 2021
    TOP STORY

    Chemical Combinations Potentiate Human PSC-Derived 3D Pancreatic Progenitor Clusters toward Functional β Cells

    To efficiently cluster human PSC-derived pancreatic progenitors into 3D structures, scientists discovered ten chemicals that not only retained the pancreatic progenitors in 3D clusters but also enhanced their potentiality towards NKX6.1+/INS+β cells.
    [Nature Communications]

    Full Article

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    PUBLICATIONSRanked by the impact factor of the journal

    High Throughput Screening Identifies SOX2 as a Super Pioneer Factor That Inhibits DNA Methylation Maintenance at Its Binding Sites

    Using a highly parallelized approach to investigate pioneer transcription factor ability to bind methylated DNA and induce DNA demethylation, researchers showed the complex interdependence between DNA methylation and transcription factor binding.
    [Nature Communications]

    Full Article

    AP-1 Is a Temporally Regulated Dual Gatekeeper of Reprogramming to Pluripotency

    Efficient reprogramming of human fibroblasts to iPSCs was achieved by transduction with vectors expressing SOX2, KLF4, and inducible dnAP-1, demonstrating that dnAP-1 can substitute for exogenous human OCT4.
    [Proceedings of the National Academy of Sciences of the United States of America]

    Abstract

    Contiguous Erosion of the Inactive X in Human Pluripotency Concludes with Global DNA Hypomethylation

    The authors performed an integrated analysis of DNA methylation, chromatin accessibility, and gene expression across hundreds of human PSC samples.
    [Cell Reports]

    Full ArticleGraphical Abstract

    Deletion of lncRNA XACT Does Not Change Expression Dosage of X-Linked Genes, but Affects Differentiation Potential in human PSCs

    Scientists reported that a common mechanism for the initiation of the erosion of X chromosome inactivation of female human PSCs depended on XIST loss but not XACT accumulation on inactive X chromosomes.
    [Cell Reports]

    Full ArticleGraphical Abstract

    Human iPS Cells Engender Corneal Epithelial Stem Cells with Holoclone-Forming Capabilities

    Investigators showed that a sub-population of cells in a human iPSC-derived corneal epithelial cell sheet was positive for ATP-binding cassette, sub-family B, member 5, a functional marker of adult corneal epithelial stem cells.
    [iScience]

    AbstractFull ArticleGraphical Abstract

    The Therapeutic Potential of Multiclonal Tumoricidal T Cells Derived from Tumor Infiltrating Lymphocyte-1 derived iPS Cells

    Researchers established tumor-specific tumor-infiltrating lymphocytes (TIL)-derived iPS cells with human colorectal cancer specimens to confirm their hypothesis that the anti-tumor effect could be enhanced by TIL regeneration.
    [Communications Biology]

    Full Article

    Bioengineered Model of the Human Motor Unit with Physiologically Functional Neuromuscular Junctions

    Bioengineered skeletal muscles produced functional tetanic and twitch profiles and demonstrated increased acetylcholine receptor clustering and transcription of MUSK and LRP4 mRNAs, indicating enhanced organisation of the post-synaptic membrane.
    [Scientific Reports]

    Full Article

    Characterization of a Commercially Available Line of iPSC Hepatocytes as Models of Hepatocyte Function and Toxicity for Regulatory Purposes

    The authors assessed similarities and differences between commercially available iPSC hepatocytes and primary human hepatocytes in preliminary assays of drug metabolism, hepatotoxicity, and drug transport.
    [Journal of Pharmacological and Toxicological Methods]

    Abstract

    Highly Parallelized Human Embryonic Stem Cell Differentiation to Cardiac Mesoderm in Nanoliter Chambers on a Microfluidic Chip

    Researchers differentiated human ESCs to early cardiac mesodermal cells in microfluidic chambers that had a volume of only 30 nanoliters, using discontinuous medium perfusion. To confirm cell pluripotency, they tracked human ESC proliferation and immunostained the cells for pluripotency markers SOX2 and OCT3/4.
    [Biomedical Microdevices]

    Full Article

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    REVIEWS

    Tissue Mechanics in Stem Cell Fate, Development, and Cancer

    The authors discuss strategies that ameliorate tumor mechanics, such as those that foster the mesenchymal-like transdifferentiation of cells to induce a stem-like phenotype, which may comprise an effective strategy to prevent aggressive tumor behavior.
    [Developmental Cell]

    Full Article

    An Overview on Promising Somatic Cell Sources Utilized for the Efficient Generation of Induced Pluripotent Stem Cells

    Scientists provide an overview of promising easily accessible somatic cell sources isolated in non-invasive or minimally invasive manner such as keratinocytes, urine cells, and peripheral blood mononuclear cells used for the generation of human iPSCs derived from healthy and diseased subjects.
    [Stem Cell Reviews and Reports]

    AbstractGraphical Abstract

    INDUSTRY AND POLICY NEWS

    BlueRock Therapeutics Announces First Patient Dosed with DA01 in Phase I Study in Patients with Advanced Parkinson’s Disease

    BlueRock Therapeutics announced the dose administration for the first patient in a Phase I, open-label study of PSC-derived dopaminergic neurons in patients with advanced Parkinson’s disease.
    [BlueRock Therapeutics]

    Press Release

    Sorrento and Researchers at Karolinska Institutet Have Signed a Research Collaboration Agreement on iPSC-Derived Dimeric Antigen Receptor-Modified Natural Killer (DAR-NK) Cells With The Vision to Bring “Off-The-Shelf" NK Cell-Based Cancer Treatments Rapidly to Patients

    Sorrento Therapeutics, Inc. announced that the Company has entered into an additional collaborative agreement with NextGenNK Competence Center-associated research groups at the Karolinska Institutet in Stockholm, Sweden, aimed at producing novel cell-based therapeutics using natural killer cells derived from induced pluripotent stem cells.
    [Sorrento Therapeutics, Inc.]

    Press Release

    FEATURED EVENT

    EMBO Workshop: Cell Size and Growth Regulation

    June 21 – 24, 2021
    Virtual

    > See All Events

    JOB OPPORTUNITIES

    Postdoctoral Position – Environmental Chemicals in Neurodegenerative Disease Using Human Stem Cell Models

    Western University of Health Sciences – Lebanon, Oregon, United States

    Postdoctoral Position – Stemness Control in Pluripotent and Cancer Cells

    Columbia University Medical Center – New York, New York, United States

    Postdoctoral Fellowship – Center for Stem Cell and Organoid Medicine

    Cincinnati Children’s Hospital Medical Center – Cincinnati, Ohio, United States

    Postdoctoral Fellow – Stem Cell Derived Therapeutics

    University of British Columbia – Vancouver, British Columbia, Canada

    Postdoctoral Fellow – Stem Cell Differentiation

    NYU Langone Medical Center – New York, New York, United States

    > See All Jobs

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