ESC & iPSC News Volume 18.34 | Sep 13 2023

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    2023-09-13 | ESC 18.35


    ESC & iPSC News by STEMCELL Technologies
    Vol. 18.34 – 13 September, 2023
    TOP STORY

    m6A RNA Methylation Orchestrates Transcriptional Dormancy during Paused Pluripotency

    Investigators showed that N6-methyladenosine (m6A) RNA methylation by Mettl3 was required for developmental pausing in mouse blastocysts and embryonic stem cells.
    [Nature Cell Biology]

    Abstract
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    Generation of a Humanized Mesonephros in Pigs from Induced Pluripotent Stem Cells via Embryo Complementation

    To produce human cells with superior intra-niche competitiveness, the authors combined optimized pluripotent stem cell culture conditions with the inducible overexpression of two pro-survival genes.
    [Cell Stem Cell]

    Full ArticleGraphical Abstract

    DUX4 Expression in Cancer Induces a Metastable Early Embryonic Totipotent Program

    DUX4 expression activated the DUX4-regulated ZGA transcriptional program, the subsequent 8C-like program, and markers of early embryonic lineages, while suppressing steady-state and interferon-induced MHC class I expression.
    [Cell Reports]

    Full ArticleGraphical Abstract

    CHK1-CDC25A-CDK1 Regulate Cell Cycle Progression and Protect Genome Integrity in Early Mouse Embryos

    The authors showed that checkpoint kinase 1 (CHK1) regulated cell cycle progression in early mouse embryos by restraining CDK1 kinase activity due to CDC25A phosphatase degradation.
    [EMBO Reports]

    Full ArticleGraphical Abstract

    Comparison of miRNA Transcriptome of Exosomes in Three Categories of Somatic Cells with Derived iPSCs

    Scientists comprehensively obtained the 17 sets of cellular mRNA transcriptomic data with 3.93 × 1010 bp raw reads and 18 sets of exosomal miRNA transcriptomic data with 2.83 × 107 bp raw reads from three categories of human somatic cells: peripheral blood mononuclear cells, skin fibroblasts and urine cells, along with their derived iPSCs.
    [Scientific Data]

    Full Article

    Functional and Long-Lived Melanocytes from Human Pluripotent Stem Cells with Transient Ectopic Expression of JMJD3

    Researchers successfully differentiated and established a pure culture of melanocytes. The melanocytes maintained their growth rate for a long time, approximately 200 days, and were functional.
    [Stem Cell Research & Therapy]

    Full Article

    Directed Differentiation of Human Pluripotent Stem Cells into Articular Cartilage Reveals Effects Caused by Absence of WISP3, the Gene Responsible for Progressive Pseudorheumatoid Arthropathy of Childhood

    Investigators developed a plate with multiple dots containing a chemical substrate for the iPSC scaffold. iPSCs placed in the plate expanded only on the dots and created colonies of the same size. The cells were then differentiated into monocytes by adding cytokines to the colonies.
    [Cytotherapy]

    Abstract

    KLF4 Facilitates Chromatin Accessibility Remodeling in Porcine Early Embryos

    By employing low-input DNase-seq, researchers profiled the landscapes of chromatin accessibility in porcine early embryos and uncovered a unique chromatin accessibility reprogramming pattern during porcine preimplantation development.
    [Science China Life Sciences]

    Abstract

    Truncated Vitronectin with E-Cadherin Enables the Xeno-Free Derivation of Human Embryonic Stem Cells

    Three hESC lines were successfully derived on the vitronectin with a truncated N-terminus in combination with E-cadherin in xeno-free conditions for the first time, and their undifferentiated state, hESC morphology, and standard karyotypes together with their potential to differentiate into three germ layers were confirmed.
    [Scientific Reports]

    Full Article

    Trichostatin A for Efficient CRISPR-Cas9 Gene Editing of Human Pluripotent Stem Cells

    The authors developed a strategy to improve the efficiency of the iPSC gene editing process via application of a small-molecule, trichostatin A, a Class I and II histone deacetylase inhibitor.
    [CRISPR Journal]

    Abstract
    Webinar on Modeling arrhythmias using hPSC-derived cardiomyocytes
    REVIEWS

    Recent Advances in Regulating the Proliferation or Maturation of Human-Induced Pluripotent Stem Cell-Derived Cardiomyocytes

    Scientists summarize recent approaches used to promote hiPSC-cardiomyocyte (CM) proliferation, and thoroughly review recent advances in promoting hiPSC-CM maturation, which will serve as the foundation for large-scale production of mature hiPSC-CMs for future clinical applications.
    [Stem Cell Research & Therapy]

    Full Article
    INDUSTRY AND POLICY NEWS

    Stem Cell Network Announces $1 Million in Funding to Further Support Graduate Students and Post-doctoral Fellows

    The Stem Cell Network (SCN) announced $1 million in funding to support research trainees across Canada who are actively engaged in SCN’s 56 ongoing projects and clinical trials.
    [Stem Cell Network]

    Press Release
    FEATURED EVENT

    Tissue, Matrix, and Pathobiology: Joint Meeting of ASMB, HCS, and ASIP

    October 22 – 25, 2023
    Salt Lake City, Utah, United States

    > See All Events

    JOB OPPORTUNITIES

    Research Associate – Stem Cell Biology-Bioengineering

    University of Cambridge – Cambridge, England, United Kingdom

    Postdoctoral Grant – Retinal Diseases

    Boehringer Ingelheim International – Biberach, Germany

    Postdoctoral Research Fellow – iPSC Models of Parkinson’s Disease

    Royal Infirmary – Edinburgh, Scotland, United Kingdom

    Assistant Professor – Neural Networks for Biology

    Duke University – Durham, North Carolina, United States

    Senior Scientist – Stem Cell Engineering

    Amgen – Burnaby, British Columbia, Canada

    > See All Jobs

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