Immunology of Infectious Disease News Volume 9.20 | May 26 2021

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    2021-05-26 | IIDN 9.20


    Immunology of Infectious Disease News by STEMCELL Technologies
    Vol. 9.20 – 26 May, 2021
    TOP STORY

    Fab-Dimerized Glycan-Reactive Antibodies Are a Structural Category of Natural Antibodies

    Investigators described HIV-1 Env Fab-dimerized glycan-reactive broadly neutralizing Ab without VH-swapped domains from simian-human immunodeficiency virus-infected macaques.
    [Cell]

    AbstractPress ReleaseGraphical Abstract
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    PUBLICATIONSRanked by the impact factor of the journal

    Preexisting and Post-COVID-19 Immune Responses to SARS-CoV-2 in Cancer Patients

    Unexposed patients with hematological malignancies presented with reduced prevalence of pre-existing SARS-CoV-2 cross-reactive CD4+ T cell responses and signs of T cell exhaustion when compared to solid tumor patients and healthy volunteers.
    [Cancer Discovery]

    Abstract

    Humoral Immune Response to Circulating SARS-CoV-2 Variants Elicited by Inactivated and RBD-Subunit Vaccines

    Investigators reported the humoral immune response to circulating SARS-CoV-2 variants, such as 501Y.V2, of the plasma and neutralizing antibodies elicited by CoronaV, ZF2001 and natural infection.
    [Cell Research]

    Full Article

    Lipid Nanoparticle RBD-hFc mRNA Vaccine Protects hACE2 Transgenic Mice against a Lethal SARS-CoV-2 Infection

    The authors recently reported a SARS-CoV-2 human Fc-conjugated receptor-binding domain mRNA vaccine delivered via lipid nanoparticles.
    [ACS Nano]

    AbstractGraphical Abstract

    Peripheral and Lung Resident Memory T Cell Responses against SARS-CoV-2

    Scientists identified circulating virus-specific T cell responses during acute infection with functional, migratory and apoptotic patterns modulated by viral proteins and associated with clinical outcome.
    [Nature Communications]

    Full ArticlePress Release

    Immune Response to SARS-CoV-2 Variants of Concern in Vaccinated Individuals

    The authors obtained serum and saliva samples from groups of vaccinated, infected and uninfected individuals and characterize the antibody response to receptor binding domain mutant strains.
    [Nature Communications]

    Full Article

    Efficient Maternal to Neonatal Transfer of Antibodies against SARS-CoV-2 and BNT162b2 mRNA COVID-19 Vaccine

    Researchers provided substantial evidence for the effect of BNT162b2 mRNA vaccine versus native infection on maternal humoral, as well as transplacentally acquired fetal immune response, potentially providing newborn protection.
    [Journal of Clinical Investigation]

    AbstractFull ArticleGraphical Abstract

    Viral Infection of the Ovaries Compromises Pregnancy and Reveals Innate Immune Mechanisms Protecting Fertility

    Scientists employed murine cytomegalovirus as a model to study the consequences of viral infection on pregnancy outcome and fertility maintenance.
    [Immunity]

    AbstractGraphical Abstract

    Multimodally Profiling Memory T Cells from a Tuberculosis Cohort Identifies Cell State Associations with Demographics, Environment and Disease

    The authors integrated single-cell RNA and surface protein data from 500,089 memory T cells to define 31 cell states from 259 individuals in a Peruvian tuberculosis progression cohort.
    [Nature Immunology]

    Abstract

    RALDH Activity Induced by Bacterial/Fungal Pathogens in CD16+ Monocyte-Derived Dendritic Cells Boosts HIV Infection and Outgrowth in CD4+ T Cells

    Investigators hypothesized that bacterial/fungal pathogens triggering RA-synthesizing (RALDH) activity in dendritic cells fueled HIV reservoir establishment/outgrowth in pathogen-reactive CD4+ T cells.
    [Journal of Immunology]

    Abstract

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

    The authors 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

    Retinoic Acid Promotes Mycobacterium tuberculosis Elimination Inducing Antimicrobial Peptides and Cytokines

    Scientists investigated the role of ascorbic acid, calcitriol, retinoic acid, and alfa-tocopherol as inductors of molecules related to mycobacterial contention in macrophages and epithelial cells.
    [Peptides]

    Abstract


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    REVIEWS

    SARS-CoV-2 Human T Cell Epitopes: Adaptive Immune Response against COVID-19

    Investigators review how epitopes identified throughout the SARS-CoV-2 proteome reveal significant correlation between number of epitopes defined and size of the antigen provenance.
    [Cell Host & Microbe]

    AbstractPress Release
    INDUSTRY AND POLICY NEWS

    What Scientists Know about New, Fast-Spreading Coronavirus Variants

    Since the SARS-CoV-2 variant known as B.1.617 was first reported in India late last year, it has spread to dozens of other countries— including the United States, Singapore and the United Kingdom, where it has become dominant in some regions.
    [Nature News]

    Press Release

    Emergent BioSolutions Announces Positive Two-Year Persistence Data From Phase II Study Evaluating CHIKV VLP, the Company’s Chikungunya Virus Virus-Like Particle Vaccine Candidate

    Emergent BioSolutions, Inc. announced two-year persistence data from its Phase II clinical study evaluating the safety and immunogenicity of the company’s investigational chikungunya virus virus-like particle vaccine candidate in 415 healthy adults.
    [Emergent BioSolutions, Inc.]

    Press Release
    FEATURED EVENT

    Cancer Discovery Symposium

    June 21 – 22, 2021
    Virtual

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    JOB OPPORTUNITIES

    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

    Postdoctoral Researcher – Host-Microbiome Interactions

    Kings’s College London – London, England, United Kingdom

    Postdoctoral Research Fellow – Precision Vaccine Program

    Boston Children’s Hospital – Boston, Massachusetts, United States

    > See All Jobs

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