Immunology of Infectious Disease News Volume 12.02 | Jan 24 2024

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    2024-01-24 | IIDN 12.03


    Immunology of Infectious Disease News by STEMCELL Technologies
    Vol. 12.03 – 24 January, 2024
    TOP STORY

    Long COVID Manifests with T Cell Dysregulation, Inflammation and an Uncoordinated Adaptive Immune Response to SARS-CoV-2

    Scientists used ‘omic” assays and serology to deeply characterize the global and SARS-CoV-2-specific immunity in the blood of individuals with clear long COVID and non-long COVID clinical trajectories, 8 months post-infection.
    [Nature Immunology]

    Abstract
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    Respiratory Distress in SARS-CoV-2 Exposed Uninfected Neonates Followed in the COVID Outcomes in Mother-Infant Pairs (COMP) Study

    Researchers examined the relationship between maternal COVID-19 vaccination and neonatal respiratory distress using a longitudinal cohort of mother-infant pairs in Los Angeles, CA.
    [Nature Communications]

    Full Article

    Nanoparticle-Based DNA Vaccine Protects Against SARS-CoV-2 Variants in Female Preclinical Models

    Investigators developed lipid nanoparticles to provide safe and effective delivery of plasmid DNA and showed protection against variants of concerns in female small animal models.
    [Nature Communications]

    Full Article

    The Anti-COVID-19 Drug Paxlovid Crosses Biological Barriers of the Placenta and Brain in Rats

    Scientists investigated whether nirmatrelvir crossed the blood-placenta barrier to reach the conceptus during pregnancy and the blood–brain barrier in male rats.
    [npj Viruses]

    Full Article

    Structural and Biochemical Rationale for Beta Variant Protein Booster Vaccine Broad Cross-Neutralization of SARS-CoV-2

    Researchers investigated the conformational dynamics and stabilizing features using orthogonal SPR, SEC, nanoDSF, and HDX-MS techniques to better understand how this antigen elicits superior broad neutralizing antibodies as a variant booster vaccine.
    [Scientific Reports]

    Full Article

    Identification and Relative Abundance of Naturally Presented and Cross-Reactive Influenza A Virus MHC Class I-Restricted T Cell Epitopes

    Using an immunopeptidomics approach, naturally presented influenza A virus-derived ligands restricted to HLA-A*24:02, HLA-A*68:01, HLA-B*07:02, and HLA-B*51:01 molecules were identified.
    [Emerging Microbes & Infections]

    Full Article

    Torque Teno Virus Load Is Associated with CDC Stage and CD4+ Cell Count in People Living with HIV but Unrelated to AIDS-Defining Events and Human Pegivirus Load

    Investigators hypothesized that Torque Teno Virus load could be an additional marker for immune function in people living with HIV.
    [Journal Of Infectious Diseases]

    Abstract

    Salmonella Manipulates the Host to Drive Pathogenicity via Induction of Interleukin 1β

    Researchers showed that IL-1β production was detrimental during Salmonella infection. Mice lacking IL-1β failed to recruit neutrophils to the gut during infection, which reduced tissue damage and prevented depletion of short-chain fatty acid-producing commensals.
    [PLOS Biology]

    Full Article

    Human B Cells and Dendritic Cells Are Susceptible and Permissive to Enterovirus D68 Infection

    Scientists investigated the susceptibility and permissiveness of human primary immune cells for different Enterovirus D68 (EV-D68) isolates. In human peripheral blood mononuclear cells inoculated with EV-D68, only B cells were susceptible but virus replication was limited.
    [mSphere]

    Full Article
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    REVIEWS

    Strategies to Reduce the Risks of mRNA Drug and Vaccine Toxicity

    The authors discuss concerns, specifically how cell tropism and tissue distribution of mRNA and lipid nanoparticles can lead to toxicity, and their possible reactogenicity.
    [Nature Reviews Drug Discovery]

    Abstract
    INDUSTRY AND POLICY NEWS

    2023 Nobel Prize Winner Drew Weissman, MD, PhD, Reflects on the Value of Basic Science Research

    The laureate discusses the groundbreaking work that led to COVID-19 vaccines, why he persisted with RNA research despite repeated setbacks, and the value of scientists working in-person.
    [AAMC]

    Press Release

    Needle-Free Vaccine Candidate Promises Improved, Longer-Term Immunity Against COVID-19

    Researchers from Duke-NUS Medical School have discovered a new vaccine candidate that can be delivered through the nose in the form of a spray that promises better and longer-lasting immunity against COVID-19 compared to the conventional COVID-19 vaccine administered subcutaneously.
    [NUS News]

    Press Release
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    JOB OPPORTUNITIES

    Experimental Scientist – Avian Infectious Diseases

    CSIRO – Canberra, Australia

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    Instituto Aragonés de Ciencias de la Salud – Zaragoza, Spain

    Researcher – Infectious Diseases

    Uppsala University – Uppsala, Sweden

    Research Fellow – Structural Biology of RNA

    University of Birmingham – Birmingham, England, United Kingdom

    Research Specialist – Infectious Diseases

    Washington University – Saint Louis, Missouri, United States

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