Immunology of Infectious Disease News Volume 9.20 | May 26 2021

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    2021-06-02 | IIDN 9.21


    Immunology of Infectious Disease News by STEMCELL Technologies
    Vol. 9.21 – 2 June, 2021
    TOP STORY

    Safety, Immunogenicity, and Efficacy of the BNT162b2 COVID-19 Vaccine in Adolescents

    Overall, 2260 adolescents 12 to 15 years of age received injections; 1131 received BNT162b2, and 1129 received placebo.
    [New England Journal of Medicine]

    Full Article

    This webinar provides insights and techniques for efficient leukopak sample processing and streamlined cell isolation.
    PUBLICATIONSRanked by the impact factor of the journal

    Colchicine for Community-Treated Patients with COVID-19 (COLCORONA): A Phase III, Randomised, Double-Blinded, Adaptive, Placebo-Controlled, Multicenter Trial

    Colchicine is an oral anti-inflammatory medication beneficial in gout, pericarditis, and coronary disease. Researchers investigated the effect of colchicine on the composite of COVID-19-related death or hospital admission.
    [Lancet]

    Abstract

    A Core-Shell Structured COVID-19 mRNA Vaccine with Favorable Biodistribution Pattern and Promising Immunity

    Scientists reported on the development of a highly efficacious mRNA vaccine, SW0123 that is composed of sequence-modified mRNA encoding the full-length SARS-CoV-2 Spike protein packaged in core–shell structured lipopolyplex nanoparticles.
    [Signal Transduction and Targeted Therapy]

    Full Article

    Inhalable Nanobody (PiN-21) Prevents and Treats SARS-CoV-2 Infections in Syrian Hamsters at Ultra-Low Doses

    Using Syrian hamsters that modeled moderate to severe COVID-19 disease, the authors demonstrated the high efficacy of PiN-21 to prevent and treat SARS-CoV-2 infection.
    [Science Advances]

    Full Article

    Effects of Potent Neutralizing Antibodies from Convalescent Plasma in Patients Hospitalized for Severe SARS-CoV-2 Infection

    Using a comprehensive translational approach, researchers unraveled the virological and immunological responses following treatment to disentangle which COVID-19 patients may benefit and should be the focus of future studies.
    [Nature Communications]

    Full Article

    Host-Pathogen Immune Feedbacks Can Explain Widely Divergent Outcomes from Similar Infections

    Investigators hypothesized that divergent infection outcomes were a natural result of mutual negative feedbacks between pathogens and the host immune response.
    [Proceedings of the Royal Society B-Biological Sciences]

    Abstract

    SARS-CoV-2 Infection Paralyzes Cytotoxic and Metabolic Functions of the Immune Cells

    Researchers ivestigated the immune response in acute or convalescent COVID19 patients. They characterized the peripheral blood mononuclear cells using flow cytometry and found that CD8+ T cells were significantly subsided in moderate COVID-19 and convalescent patients.
    [Heliyon]

    Full Article

    Protective Neutralizing Antibodies from Human Survivors of Crimean-Congo Hemorrhagic Fever

    The authors characterized the human immune response to natural Crimean-Congo hemorrhagic fever virus infection to identify potent neutralizing monoclonal antibodies targeting the viral glycoprotein.
    [Cell]

    AbstractGraphical Abstract

    TRIM7 Inhibits Enterovirus Replication and Promotes Emergence of a Viral Variant with Increased Pathogenicity

    Scientists showed that E3 ubiquitin ligase TRIM7 is a cell-intrinsic antiviral effector that restricted multiple human enteroviruses by targeting viral 2BC, a membrane remodeling protein, for ubiquitination and proteasome-dependent degradation.
    [Cell]

    AbstractGraphical Abstract

    Shared Transcriptional Profiles of Atypical B Cells Suggest Common Drivers of Expansion and Function in Malaria, HIV, and Autoimmunity

    Investigators showed remarkably similar transcriptional profiles for atypical B cells (ABCs) clusters in malaria, HIV, and autoimmune diseases and demonstrated that interferon-γ drove the expansion of ABCs in malaria.
    [Science Advances]

    Full Article

    Immunotranscriptomic Profiling the Acute and Clearance Phases of a Human Challenge Dengue Virus Serotype 2 Infection Model

    Researchers profiled the host immunotranscriptome response in humans before, during, and after infection with a partially attenuated rDEN2Δ30 challenge virus.
    [Nature Communications]

    Full ArticlePress Release

    Lung-Resident Memory B Cells Protect against Bacterial Pneumonia

    Investigators examined whether lung lung-resident memory B cells cells were elicited by the respiratory pathogen pneumococcus, were present in humans, and were important in pneumonia defense
    [Journal of Clinical Investigation]

    Full Article

    Type I Interferon Decreases Macrophage Energy Metabolism during Mycobacterial Infection

    Scientists characterized the metabolic and transcriptional responses of murine macrophages to Mycobacterium tuberculosis in order to disentangle the underlying mechanisms.
    [Cell Reports]

    Full ArticleGraphical Abstract

    Fungal and Host Protein Persulfidation Are Functionally Correlated and Modulate Both Virulence and Antifungal Response

    The authors investigated the role of the versatile posttranslational modification persulfidation for both fungal virulence and antifungal host defense.
    [PLoS Biology]

    Full Article

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    REVIEWS

    SARS-CoV-2 Variants, Spike Mutations and Immune Escape

    Investigators summarize the literature on mutations of the SARS-CoV-2 spike protein, the primary antigen, focusing on their impacts on antigenicity and contextualizing them in the protein structure, and discuss them in the context of observed mutation frequencies in global sequence datasets.
    [Nature Reviews Microbiology]

    Full Article
    INDUSTRY AND POLICY NEWS

    A Pandemic Upside: The Flu Virus Became Less Diverse, Simplifying the Task of Making Flu Shots

    With COVID-19 suppression measures like mask wearing, school closures, and travel restrictions driving flu transmission rates to historically low levels around the world, it appears that one of the H3N2 clades may have disappeared — gone extinct.
    [STAT News]

    Press Release

    Kedrion and Kamada Announce FDA Approval of KEDRAB® Label Update, Confirming Safety and Effectiveness in Children

    Kedrion Biopharma and Kamada Ltd. announced that the FDA has approved a label update for KEDRAB®, a human rabies immune globulin, establishing the product’s safety and effectiveness in children.
    [Kamada Ltd.]

    Press Release
    FEATURED EVENT

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    June 28 – 30, 2021
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    JOB OPPORTUNITIES

    Postdoctoral Fellow – Gut Metabolites in Organoid Infection Models

    Uppsala University – Uppsala, Sweden

    Postdoctoral Fellow – Immunobiology and Microbial Pathogenesis

    Salk Institute – La Jolla, California, United States

    Director – The Roslin Institute

    The University of Edinburgh – Edinburgh, Scotland, United Kingdom

    Research Scientist – Respiratory Bacterial Infections

    Rochester Regional Health – Rochester, New York, United States

    Editor-in-Chief – The Journal of Infectious Diseases

    The Journal of Infectious Diseases – Arlington, Virginia, United States

    > See All Jobs

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