Human Immunology News Volume 9.07 | Feb 23 2021

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    HIN 9.07 | Feb 23 2021


    Human Immunology News by STEMCELL Technologies
    Vol. 9.07 – 23 February, 2021
    TOP STORY

    Epitope Spreading toward Wild-Type Melanocyte-Lineage Antigens Rescues Suboptimal Immune Checkpoint Blockade Responses

    Scientists report that patients with low melanoma neoantigen burdens who responded to immune checkpoint inhibitors had tumors with higher expression of pigmentation-related genes.
    [Science Translational Medicine]

    Full ArticlePress Release

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    DNA Hypomethylating Agents Increase Activation and Cytolytic Activity of CD8+ T Cells

    Ex vivo, hypomethylating agents enhanced primary human CD8+ T cell activation markers, effector cytokine production, and anti-tumor cytolytic activity.
    [Molecular Cell]

    AbstractPress ReleaseGraphical Abstract

    Neoadjuvant Anti-OX40 (MEDI6469) Therapy in Patients with Head and Neck Squamous Cell Carcinoma Activates and Expands Antigen-Specific Tumor-Infiltrating T Cell

    Investigators describe the results from a Phase Ib clinical trial in which 17 patients with locally advanced head and neck squamous cell carcinoma received a murine anti-human OX40 agonist antibody prior to definitive surgical resection.
    [Nature Communications]

    Full Article

    Common Clonal Origin of Conventional T Cells and Induced Regulatory T Cells in Breast Cancer Patients

    Scientists analyzed Treg clonal origin in breast cancer patients using T-Cell Receptor and single-cell transcriptome sequencing.
    [Nature Communications]

    Full Article

    Rapid Depletion of Intratumoral Regulatory T Cells Induces Synchronized CD8 T and NK Cell Activation and IFN-γ-Dependent Tumor Vessel Regression

    To better understand the roles of intratumoral Tregs, the authors selectively depleted tumor-infiltrating T regulatory cells using anti-CD25-F(ab′)2 near-infrared photoimmunotherapy.
    [Cancer Research]

    Abstract

    Selective Elimination of Immunosuppressive T Cells in Patients with Multiple Myeloma

    SLAMF7 expression associated with T cell exhaustion surface markers and exhaustion-related transcription factor signatures. T cells from patients with a high frequency of SLAMF7+CD8+ T cells exhibited decreased immunoreactivity towards the MART-1aa26–35*A27L antigen.
    [Leukemia]

    Full Article

    Epcoritamab Induces Potent Anti-Tumor Activity against Malignant B-Cells from Patients with DLBCL, FL and MCL, Irrespective of Prior CD20 Monoclonal Antibody Treatment

    Researchers assessed the preclinical efficacy of epcoritamab against primary tumor cells present in the lymph node biopsies from newly diagnosed and relapsed/refractory B-cell non-Hodgkin lymphoma patients.
    [Blood Cancer Journal]

    Full Article

    A Hexokinase Isoenzyme Switch in Human Liver Cancer Cells Promotes Lipogenesis and Enhances Innate Immunity

    The authors showed that in hepatocellular carcinoma tumors the highest expression level of hexokinase 2 was inversely correlated to glucokinase expression, and was associated to poor prognosis for patient survival.
    [Communications Biology]

    Full Article

    CD4+ T Cells from Children with Active Juvenile Idiopathic Arthritis Show Altered Chromatin Features Associated with Transcriptional Abnormalities

    Scientists used a multi-omics approach to identify mechanisms driving the transcriptional abnormalities in peripheral blood CD4+ T cells of children with active juvenile idiopathic arthritis.
    [Scientific Reports]

    Full Article

    Overexpression of Aberrant Wnt5a and Its Effect on Acquisition of Malignant Phenotypes in Adult T-Cell Leukemia/Lymphoma (ATL) Cells

    Investigators demonstrated that the overexpression of c-Myb and FoxM1 was responsible for the synergistic activation of the WNT5A promoter.
    [Scientific Reports]

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    REVIEWS

    Inflammasomes and Adaptive Immune Responses

    Scientists review the current understanding of the diverse effects that inflammasomes can have on adaptive responses, beginning with the fate of antigen released from pyroptotic cells, followed by consideration of the effects of inflammasome-dependent cytokines in infection, cancer and autoimmune disease.
    [Nature Immunology]

    Abstract

    Key Chemokines Direct Migration of Immune Cells in Solid Tumors

    The authors discuss well-studied chemokine receptors that regulate migration of effector and immunosuppressive immune cells in the context of cancer immunology.
    [Cancer Gene Therapy]

    Full Article

    INDUSTRY AND POLICY NEWS

    AIM ImmunoTech Announces the Expansion of its Pancreatic Cancer Program to Include New Patients in the Netherlands

    AIM ImmunoTech, Inc. announced that the Dutch Health and Youth Care Inspectorate has approved treatment for six pancreatic cancer patients as part of a new, follow-up Early Access Program at Erasmus Medical Center in the Netherlands.
    [AIM ImmunoTech, Inc.]

    Press Release

    FEATURED EVENT

    Sequencing-Based Discoveries in Immunology

    March 4, 2021
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    JOB OPPORTUNITIES

    Laboratory Manager – Metabolism and Immunity

    University of Basel – Basel, Switzerland

    Postdoctoral Fellow – Human COVID Immunology

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

    Postdoctoral Fellow – Immunogenetics and Tumor Immunology

    The University of Texas Southwestern Medical Center – Dallas, Texas, United States

    Postdoctoral Associate Position – Tumor Immunology/Immunotherapy

    Duke University – Durham, North Carolina, United States

    Postdoctoral Fellow – Osteoarthritis

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

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