Human Immunology News Volume 10.34 | Aug 30 2022

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    2022-08-30 | HIN 10.34


    Human Immunology News by STEMCELL Technologies
    Vol. 10.34 – 30 August, 2022
    TOP STORY

    RASA2 Ablation in T Cells Boosts Antigen Sensitivity and Long-Term Function

    Ablation of RASA2 in multiple preclinical models of T cell receptor and CAR T cell therapies prolonged survival in mice xenografted with either liquid or solid tumours.
    [Nature]

    Full ArticlePress Release

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    Tumor Immune Contexture Is a Determinant of Anti-CD19 CAR T Cell Efficacy in Large B Cell Lymphoma

    Researchers assessed whether tumor immune contexture influenced clinical outcomes after axicabtagene ciloleucel. They evaluated the tumor microenvironment of 135 pre-treatment and post-treatment tumor biopsies taken from 51 patients in the ZUMA-1 Phase II trial.
    [Nature Medicine]

    Full Article

    Large-Scale Sequencing Identifies Multiple Genes and Rare Variants Associated with Crohn’s Disease Susceptibility

    To complement GWASs and better define actionable biological targets, scientists analyzed sequence data from more than 30,000 patients with Crohn’s disease and 80,000 population controls.
    [Nature Genetics]

    AbstractPress Release

    Low-Dose Decitabine Modulates Myeloid-Derived Suppressor Cell Fitness via LKB1 in Immune Thrombocytopenia

    The authors analyzed the effects of decitabine on myeloid-derived suppressor cells (MDSCs) from patients with immune thrombocytopenia, both in vitro and in vivo, and found that low-dose decitabine promoted the generation of MDSCs, and enhanced their aerobic metabolism and immunosuppressive functions.
    [Blood]

    Abstract

    CD39+ Tissue-Resident Memory CD8+ T Cells with a Clonal Overlap across Compartments Mediate Antitumor Immunity in Breast Cancer

    Investigators examined the heterogeneity of CD8+ T cells in tumors, metastatic lymph nodes, and peripheral blood from patients with early breast cancer.
    [Science Immunology]

    Abstract

    Temporally Restricted Activation of IFNβ Signaling Underlies Response to Immune Checkpoint Therapy in Mice

    Scientists identified Ly6C+/CD11b+ inflammatory monocytes as the primary source of IFNβ and found that active type-I-IFN signaling in tumor-infiltrating inflammatory monocytes was associated with T cell expansion in patients treated with immune checkpoint blockade.
    [Nature Communications]

    Full Article

    scRNA-Seq of Gastric Tumor Shows Complex Intercellular Interaction with an Alternative T Cell Exhaustion Trajectory

    The authors generated an atlas of 166,533 cells from ten gastric cancer patients with matched paratumor tissues and blood. Their results showed tumor-associated stromal cells had upregulated activity of Wnt signaling and angiogenesis, and were negatively correlated with survival.
    [Nature Communications]

    Full Article

    Intratumoral PD-1+CD8+ T Cells Associate Poor Clinical Outcomes and Adjuvant Chemotherapeutic Benefit in Gastric Cancer

    Researchers demonstrated that PD-1+CD8+ T cells functioned as an independent adverse prognosticator in gastric cancer (GC). In addition, an abundance of intratumoral PD-1+CD8+ T cells indicated worse chemotherapeutic responsiveness to fluorouracil in Stage III GC patients.
    [British Journal of Cancer]

    Full Article

    Survival and Late Effects of Hematopoietic Cell Transplantation in Patients with Thalassemia Major

    Scientists evaluated long-term survival and late effects in 137 patients affected by thalassemia major who received an allogeneic hematopoietic cell transplantation.
    [Bone Marrow Transplantation]

    Full Article

    Sequencing T Cell Redirection Therapies Leads to Deep and Durable Responses in Relapsed/Refractory Myeloma Patients

    Investigators showed that the sequential use of different T cell redirection therapies was possible and could lead to deep and durable responses following relapse after bispecific antibody therapy in relapsed/refractory multiple myeloma.
    [Blood Advances]

    Abstract

    A Novel Anti-B7-H3 Chimeric Antigen Receptor from a Single Chain Antibody Library for Immunotherapy of Solid Cancers

    Researchers constructed and screened binders in an single chain Fv format library to generate a new anti-B7-H3 CAR-T with favorable properties. This allowed access to numerous specificities ready formated for CAR evaluation.
    [Molecular Therapy-Oncolytics]

    AbstractFull ArticleGraphical Abstract

    Internal Checkpoint Regulates T Cell Neoantigen Reactivity and Susceptibility to PD1 Blockade

    The authors investigated the mechanistic role of cytokine-induced SH2 protein (CISH) in regulating human T cell effector function in solid tumors and demonstrated that CRISPR/Cas9 disruption of CISH enhanced tumor-infiltrating lymphocyte neoantigen recognition and response to checkpoint blockade.
    [Med]

    Full ArticleGraphical Abstract

    ENTPD1/CD39 as a Predictive Marker of Treatment Response to Gemogenovatucel-T as Maintenance Therapy in Newly Diagnosed Ovarian Cancer

    All patients enrolled in the VITAL trial of maintenance gemogenovatucel-T vs. placebo as front-line therapy with homologous recombination proficient stage IIIB-IV newly diagnosed ovarian cancer underwent NanoString gene expression analysis.
    [Communications Medicine]

    Full Article

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    REVIEWS

    Eosinophil–Lymphocyte Interactions in the Tumor Microenvironment and Cancer Immunotherapy

    In light of the immune checkpoint inhibition revolution in cancer therapy, scientists review eosinophil–lymphocyte interactions in the tumor microenvironment.
    [Nature Immunology]

    Abstract

    Immunotherapy for Hepatocellular Carcinoma

    Investigators summarize the progress of immunotherapy for the treatment of hepatocellular carcinoma including immune checkpoint inhibitors, liver cancer vaccines, and cellular therapies.
    [Clinical and Experimental Medicine]

    Abstract

    INDUSTRY AND POLICY NEWS

    Regen BioPharma Develops Novel Means of Using CAR-T Cell Immunotherapy to Attack Solid Tumors

    Regen BioPharma, Inc. announced the development of a novel immunotherapy for treatment of solid tumors. The current approach developed by the company involves initial treatment of the tumor microenvironment with cells of the innate immune system called CAR-M and CAR-NK cells.
    [Regen BioPharma, Inc. (Cision US, Inc.)]

    Press Release

    Century Therapeutics Receives Study May Proceed Notification from FDA for CNTY-101, the First Allogeneic Cell Therapy Product Candidate Engineered to Overcome Three Major Pathways of Host vs Graft Rejection

    Century Therapeutics, Inc. announced that the company has been notified by the US FDA that the company’s ELiPSE-1 clinical study may proceed to assess CNTY-101 in patients with relapsed or refractory CD19 positive B cell malignancies.
    [Century Therapeutics, Inc.]

    Press Release

    FEATURED EVENT

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    November 10 – 12, 2022
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    JOB OPPORTUNITIES

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

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    Genentech, Inc. – South San Francisco, California, United States

    Grants Manager – Cancer Research Institute

    Olivia Newton-John Cancer Research Institute – Victoria, Australia

    Histology Scientist – Personalized Immunotherapy Program

    Melanoma Institute Australia – Sydney, Australia

    Assistant/Associate Professor – Breast Cancer Research

    Dalhousie University – Halifax, Nova Scotia, Canada

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