Immune Regulation News Volume 12.47 | Dec 11 2020

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    IRN 12.47 | Dec 11 2020


    Immune Regulation News by STEMCELL Technologies
    Vol. 12.47 – 11 December, 2020
    TOP STORY

    Immune-Stimulating
    Antibody Conjugates Elicit Robust Myeloid Activation and Durable Antitumor Immunity

    Scientists developed immune-stimulating antibody conjugates comprising a TLR7/8 dual agonist conjugated to tumor-targeting antibodies.
    [Nature Cancer]

    Abstract

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    PUBLICATIONSRanked by the impact factor of the journal

    H1 Histones Control the Epigenetic Landscape by Local Chromatin Compaction

    Researchers generated a conditional triple-H1-knockout mouse strain and depleted H1 in hematopoietic cells. H1 depletion in T cells led to de-repression of T cell activation genes, a process that mimicked normal T cell activation.
    [Nature]

    Abstract

    Obesity
    Shapes Metabolism in the Tumor Microenvironment to Suppress Anti-Tumor Immunity

    Investigators demonstrated that high-fat diet-induced obesity impaired CD8+ T cell function in the murine tumor microenvironment, accelerating tumor growth.
    [Cell]

    AbstractGraphical Abstract

    Screening for Functional Circular RNAs Using the CRISPR–Cas13 System

    The authors report that CRISPR–RfxCas13d could effectively discriminate circular RNAs from mRNAs by using guide RNAs targeting sequences spanning back-splicing junction sites featured in RNA circles.
    [Nature Methods]

    Abstract

    ATM Inhibition Enhances Cancer Immunotherapy by Promoting mtDNA Leakage/cGAS-STING Activation

    Researchers showed that Ataxia Telangiectasia Mutated (ATM) inhibition could potentiate immune checkpoint blockade therapy by promoting cytoplasmic leakage of mitochondrial DNA (mtDNA) and activation of the cGAS/STING pathway.
    [Journal of Clinical Investigation]

    AbstractFull Article
    Graphical Abstract

    Tumor
    Derived UBR5 Promotes Ovarian Cancer Growth and Metastasis through Inducing Immunosuppressive Macrophages

    Investigators demonstrated that tumor-derived UBR5, an E3 ligase overexpressed in human ovarian cancer (OC) associated with poor prognosis, was essential for OC progression principally by promoting tumor-associated macrophage recruitment and activation via key chemokines and cytokines.
    [Nature Communications]

    Full Article

    B7-CD28
    Co-Stimulation Modulates Central Tolerance via Thymic Clonal Deletion and Treg Generation through Distinct Mechanisms

    Scientists showed that B7-CD28 co-stimulation and B7 expression by specific antigen-presenting cell types were required for clonal deletion and for regulatory T cell generation from endogenous tissue-restricted antigen-specific thymocytes.
    [Nature Communications]

    Full Article

    ATG5-Dependent
    Autophagy Uncouples T Cell Proliferative and Effector Functions and Separates Graft-versus-Host Disease from Graft-versus-Leukemia

    To assess the relevance of autophagy to T cell allo-immunity, the authors generated T cell specific ATG5 knock-out mice. Deficiency of ATG5 dependent autophagy reduced T cell proliferation, increased apoptosis following in vitro and in vivo allo-stimulation.
    [Cancer Research]

    Abstract

    SKIL
    Facilitates Tumorigenesis and Immune Escape of NSCLC via Upregulating TAZ/Autophagy Axis

    The authors investigated roles of SKIL in tumorigenesis and immune escape of non-small-cell lung cancer (NSCLC). SKIL expression levels in NSCLC cell line, clinical sample, and adjacent normal tissue were measured by quantitative PCR, western blot, or immunohistochemistry.
    [Cell Death & Disease]

    Full Article

    Menstrual
    Blood-Derived Stromal Cells Modulate Functional Properties of Mouse and Human Macrophages

    Scientists assessed the effects that menstrual blood-derived stromal cells had on the recruitment of macrophages and other innate immune cells in two mouse models of acute inflammation, a thioglycollate-elicited peritonitis model and a monobacterial sepsis model.
    [Scientific Reports]

    Full Article

    NLRC5
    Promotes Transcription of BTN3A1-3 Genes and Vγ9Vδ2 T Cell-Mediated Killing

    Forcing NLRC5 expression promoted Vγ9Vδ2 T cell-mediated killing of tumor cells in a BTN3A-dependent manner.
    [iScience]

    AbstractGraphical Abstract

    Intestinal
    Regulatory T Cell Induction by β-Elemene Alleviates the Formation of Fat Tissue-Related Inflammation

    Oral administration of β-elemene, contained in various foodstuffs, downregulated expressions of inflammatory cytokines and increased Foxp3+CD4+ T cells in adipose tissue of obese mice.
    [iScience]

    AbstractGraphical Abstract

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    REVIEWS

    Tumor-Infiltrating Natural Killer Cells

    Scientists provide an overview of what is known about natural killer (NK) tumor infiltration and surveillance and about the mechanisms by which NK cells become dysfunctional.
    [Cancer Discovery]

    Abstract

    The Role of Natural Killer Cell in Gastrointestinal Cancer: Killer or Helper

    The authors discuss natural killer cells’ cytotoxicity and modulation function in gastrointestinal cancer and the current application in clinical therapy.
    [Oncogene]

    Full Article

    INDUSTRY AND POLICY NEWS

    Fate
    Therapeutics Reports Positive Interim Data from its Phase I Study of FT516 in Combination with Rituximab for B-Cell Lymphoma

    Fate Therapeutics, Inc. announced positive interim data from the company’s dose escalation Phase I study of FT516 in combination with rituximab for patients with relapsed/refractory B-cell lymphoma.
    [Fate Therapeutics, Inc.]

    Press Release

    Janssen Submits Application to US FDA Seeking Approval of Amivantamab for the Treatment of Patients with Metastatic Non-Small Cell Lung Cancer with EGFR Exon 20 Insertion Mutations

    The Janssen Pharmaceutical Companies of Johnson & Johnson announced the submission of a Biologics License Application to the FDA seeking approval of amivantamab for the treatment of patients with metastatic non-small cell lung cancer with epidermal growth factor receptor exon 20 insertion mutations whose disease has progressed on or after platinum-based chemotherapy.
    [Janssen LLC]

    Press Release

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