Intestinal Cell News Volume 9.13 | Apr 14 2023

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    2023-04-14 | ICN 9.13


    Intestinal Cell News by STEMCELL Technologies
    Vol. 9.13 – 14 April, 2023
    TOP STORY

    Graded BMP Signaling within Intestinal Crypt Architecture Directs Self-Organization of the Wnt-Secreting Stem Cell Niche

    The authors showed that mRNA and chromatin profiles of abundant CD81 PDGFRAlo mouse stromal cells resembled those of trophocytes and that both populations provided crucial canonical Wnt ligands.
    [Cell Stem Cell]

    AbstractGraphical Abstract
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    PUBLICATIONSRanked by the impact factor of the journal

    A Novel Tumor Enhancer Function of Insulin-Like Growth Factor II mRNA-Binding Protein 3 in Colorectal Cancer

    To address whether insulin-like growth factor II mRNA-binding proteins (IMP) 3 controled cancer cell survival, researchers analyzed cell death pathways in in vitro and in vivo experiments after IMP3 downregulation by siRNA or an antisense oligonucleotide.
    [Cell Death & Disease]

    Full ArticleGraphical Abstract

    Nodal Promotes Colorectal Cancer Survival and Metastasis through Regulating SCD1-Mediated Ferroptosis Resistance

    Scientists observed that Nodal enhanced colorectal cancer cells’ proliferative rate, motility, invasiveness, and epithelial–mesenchymal transition in vivo and in vitro.
    [Cell Death & Disease]

    Full Article

    Bv8 Mediates Myeloid Cell Migration and Enhances Malignancy of Colorectal Cancer

    Investigators studied a novel protein prokineticin 2,also known as Bv8, as a key pro-tumoral factor in colorectal cancer progression in in vitro and ex vivo settings.
    [Frontiers in Immunology]

    Full Article

    RAF1 Contributes to Cell Proliferation and STAT3 Activation in Colorectal Cancer Independently of Microsatellite and KRAS Status

    Researchers demonstrated that RAF1, but not its kinase activity, played a crucial role in the proliferation of both Microsatellite Stable and Microsatellite Instable colorectal cancer cell line-derived spheroids and patient-derived organoids, and independently of KRAS mutation status.
    [Oncogene]

    Full Article

    Feedback Activation of EGFR/Wild-Type RAS Signaling Axis Limits KRASG12D Inhibitor Efficacy in KRASG12D-Mutated Colorectal Cancer

    Scientists reported that MRTX1133 treatment caused reversible growth arrest in KRASG12D-mutated colorectal cancer cells, accompanied by partial reactivation of RAS effector signaling.
    [Oncogene]

    Full ArticleGraphical Abstract

    Oncogenic Signaling Is Coupled to Colorectal Cancer Cell Differentiation State

    The authors used mass cytometry of isogenic human colon organoids and patient-derived cancer organoids to capture oncogenic signaling, cell phenotypes, and differentiation states in a high-dimensional single-cell map.
    [Journal of Cell Biology]

    Abstract

    Segregation of the Stemness Program from the Proliferation Program in Intestinal Stem Cells

    Investigators reported that methyltransferase-like 3, a critical enzyme for N6-methyladenosine methylation, was required for intestinal stem cells maintenance as its deletion resulted in fast loss of stemness markers but had no effect on cell proliferation.
    [Stem Cell Reports]

    Full ArticleGraphical Abstract

    APC-Driven Actin Nucleation Powers Collective Cell Dynamics in Colorectal Cancer Cells

    By combining bioimaging and genetic tools with artificial intelligence algorithms applied to colorectal cancer cell, researchers found that the Adenomatous Polyposis Coli (APC)-dependent actin pool contributed to sustaining levels of F-actin, as well as E-cadherin and Occludin protein levels at cell junctions.
    [iScience]

    AbstractFull ArticleGraphical Abstract

    Polyphyllin I Suppresses the Gastric Cancer Growth by Promoting Cancer Cell Ferroptosis

    Two types of human gastric cancer cells were used to establish tumor xenograft models in nude mice that were treated with polyphyllin I to observe tumor growth, while cells also were cultured for in vitro studies.
    [Frontiers in Pharmacology]

    Full Article

    Single-Cell Characteristics and Malignancy Regulation of Alpha-Fetoprotein-Producing Gastric Cancer

    ScRNA-seq was performed on two tumors collected from patients with alpha-fetoprotein-producing gastric cancer (AFPGC). InferCNV and sub-clustering were applied to identify typical AFPGC cells, followed by AddModuleScore, pathway enrichment, Pseudo-time, and Scenic analyses.
    [Cancer Medicine]

    Full Article
    GI Organoid Applications
    REVIEWS

    Inflammatory Bowel Disease in Pregnancy and Breastfeeding

    The authors outline the management of inflammatory bowel disease (IBD) in pregnancy and the safety of IBD therapies, including novel agents, with regard to both maternal and fetal health.
    [Nature Reviews Gastroenterology & Hepatology]

    Abstract

    The Composition and Roles of Gastric Stem Cells in Epithelial Homeostasis, Regeneration, and Tumorigenesis

    Scientists review the biological features of gastric stem cells at various locations of the stomach under homeostatic conditions, as demonstrated by reporter mice, lineage tracing, and single cell sequencing.
    [Cellular Oncology]

    Abstract
    INDUSTRY AND POLICY NEWS

    Merck and Eisai Provide Update on Phase III Trials of KEYTRUDA® (Pembrolizumab) plus LENVIMA® (Lenvatinib) in Certain Patients with Advanced Melanoma (LEAP-003) and Metastatic Colorectal Cancer (LEAP-017)

    Merck and Eisai provided updates on two Phase III trials, LEAP-003 and LEAP-017 investigating KEYTRUDA, Merck’s anti-PD-1 therapy, plus LENVIMA, the orally available multiple receptor tyrosine kinase inhibitor discovered by Eisai.
    [Merck]

    Press Release
    FEATURED EVENT

    3D Cell Culture UK

    April 25 – 26, 2023
    London, England, United Kingdom

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    JOB OPPORTUNITIES

    Postdoctoral Research Associate – Head and Neck Cancer

    University of Liverpool – Liverpool, England, United Kingdom

    Specialist – StainsFile

    STEMCELL Technologies, Inc. – Vancouver, British Columbia, Canada

    Research Associate – Molecular Diagnostics and Experimental Therapeutics

    City of Hope – Monrovia, California, United States

    Postdoctoral Research Fellow – Regulatory RNA Research

    The University of Oklahoma Health Sciences Center – Oklahoma City, Oklahoma, United States

    Research Technician – Health Science

    Oklahoma Medical Research Foundation – Oklahoma City, Oklahoma, United States

    > See All Jobs

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