Immunology of Infectious Disease News Volume 10.20 | May 25 2022

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    2022-05-25 | IIDN 10.21


    Immunology of Infectious Disease News by STEMCELL Technologies
    Vol. 10.21 – 25 May, 2022
    TOP STORY

    Human OTULIN Haploinsufficiency Impairs Cell-Intrinsic Immunity to Staphylococcal α-Toxin

    The authors described patients with haploinsufficiency for the linear deubiquitinase OTULIN, encoded by a gene on chromosome 5p.
    [Science]

    Abstract
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    Competent Immune Responses to SARS-CoV-2 Variants in Older Adults Following Two Doses of mRNA Vaccination

    Researchers analyzed humoral and cellular immunity against an early-pandemic viral isolate and compare that to the P.1 and B.1.617.2 variants in two cohorts of mRNA vaccine recipients.
    [Nature Communications]

    Full Article

    Caspase-4/11 Exacerbates Disease Severity in SARS–CoV-2 Infection by Promoting Inflammation and Immunothrombosis

    SARS–CoV-2–infected Casp11−/− mice were protected from severe weight loss and lung pathology, including blood vessel damage, compared to wild-type mice and mice lacking the caspase downstream effector gasdermin-D.
    [Proceedings of the National Academy of Sciences of the United States of America]

    Full Article

    Association of Frailty, Age, and Biological Sex with SARS-CoV-2 mRNA Vaccine-Induced Immunity in Older Adults

    Vaccination induced greater antibody titers in older females than males, with both age and frailty associated with reduced antibody responses in males, but not females.
    [Clinical Infectious Diseases]

    Abstract

    Humoral and T Cell Immune Response after Three Doses of mRNA SARS-CoV-2 Vaccines in Fragile Patients: The Italian VAX4FRAIL Study

    Scientists designed a prospective Italian multicentrer study to assess humoral and T-cell responses to SARS-CoV-2 vaccination in patients with solid tumors, hematological malignancies, neurological disorders and immunorheumatological diseases.
    [Clinical Infectious Diseases]

    Abstract
    Full Article

    The Effect of the Probiotic Consortia on SARS-CoV-2 Infection in Ferrets and on Human Immune Cell Response In Vitro

    The authors tested the effect of two probiotic consortia, OL-1 and OL-2, against SARS-CoV-2 in ferrets and assessed their effect on cytokine production and transcriptome in a human monocyte-derived macrophage and dendritic cell model.
    [iScience]

    AbstractFull ArticleGraphical Abstract

    A Cytotoxic-Skewed Immune Set Point Predicts Low Neutralizing Antibody Levels after Zika Virus Infection

    During acute Zika virus infection, scientists identified widely coordinated responses across innate and adaptive immune cell lineages.
    [Cell Reports]

    Full ArticleGraphical Abstract

    T Cell Transcription Factor Expression Evolves over Time in Granulomas from Mycobacterium tuberculosis-Infected Cynomolgus Macaques

    Investigators identified and compared the pathological, cellular, and functional differences in granulomas at 4, 12, and 20 weeks post-infection in Chinese cynomolgus macaques.
    [Cell Reports]

    Full Article

    A CD4+ TNF+ Monofunctional Memory T Cell Response to BCG Vaccination Is Associated with Mycobacterium tuberculosis Infection in Infants Exposed to HIV

    Scientists evaluated CD4+ T cell responses in infants exposed to HIV and uninfected who received Bacille Calmette-Guérin (BCG) at birth and examined their role in susceptibility to Mycobacterium tuberculosis infection and influence on tuberculin skin test induration.
    [Ebiomedicine]

    Full Article

    Contrasting Behavior between the Three Human Monocyte Subsets in Dengue Pathophysiology

    The authors found that the CD14+CD16high intermediate monocyte subset from dengue patients highly upregulated key genes involved in mediating inflammation, endothelial dysfunction, vascular permeability, tissue extravasation, and clot prevention compared to healthy children.
    [iScience]

    AbstractFull ArticleGraphical Abstract

    Mycobacterium tuberculosis Antigen-Specific T Cell Responses in Smear- Negative Pulmonary Tuberculosis Patients

    Researchers investigated the potential discriminatory role of polychromatic flow cytometry of M. tuberculosis antigen-specific T cells to discriminate smear negative TB from health controls with or without latent TB infection, and non-TB respiratory illnesses in an endemic setting.
    [Clinical & Experimental Immunology]

    Abstract
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    REVIEWS

    Leveraging South African HIV Research to Define SARS-CoV-2 Immunity Triggered by Sequential Variants of Concern

    The authors highlight how the strength of the existing global virology and immunology networks built for HIV vaccine research enabled rapid adaptation of techniques, assays, and skill sets, to expeditiously respond to the SARS-CoV-2 pandemic.
    [Immunological Reviews]

    Full Article

    Navigating the Complexity of Chronic HIV-1 Associated Immune Dysregulation

    While there has been extensive research on the latent reservoir of treated patients with chronic HIV-1, which prevents the discontinuation of treatment, the mechanism behind this remains elusive and needs further investigation.
    [Current Opinion in Immunology]

    Full Article
    INDUSTRY AND POLICY NEWS

    Home Testing for Syphilis Gains Support in Wake of COVID

    Encouraged by the popularity of at-home tests for COVID-19, self-testing has been embraced by many, including policymakers and people in marginalized populations.
    [Nature News]

    Press Release

    Pivot into COVID-19 Research Eases as Publishing Surge Starts to Level Off

    Overall, the number of pandemic-related papers appears set to decline this year, after explosive and unprecedented growth in 2020 and 202.1
    [ScienceInsider]

    Press Release
    FEATURED EVENT

    Keystone Symposia – Tissue Fibrosis and Repair

    June 12 – 16, 2022
    Keystone Symposia, Colorado, United States

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    JOB OPPORTUNITIES

    Director – Vaccine Research Center

    National Institute of Allergy and Infectious Diseases – Bethesda, Maryland, United States

    Research Assistant – Malaria Vaccine

    The Walter and Eliza Hall Institute – Parkville, Australia

    Postdoctoral Scholarship – Immunology

    Karolinska Institute – Stockholm, Sweden

    Postdoctoral Training Fellow – Applied Biotechnology

    Francis Crick Institute – London, England, United Kingdom

    > See All Jobs

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