Vaccination boosts protective responses and counters SARS-CoV-2-induced pathogenic memory B cells

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Abstract

Much is to be learned about the interface between immune responses to SARS-CoV-2 infection and vaccination. We monitored immune responses specific to SARS-CoV-2 Spike Receptor-Binding-Domain (RBD) in convalescent individuals for eight months after infection diagnosis and following vaccination. Over time, neutralizing antibody responses, which are predominantly RBD specific, generally decreased, while RBD-specific memory B cells persisted. RBD-specific antibody and B cell responses to vaccination were more vigorous than those elicited by infection in the same subjects or by vaccination in infection-naïve comparators. Notably, the frequencies of double negative B memory cells, which are dysfunctional and potentially pathogenic, increased in the convalescent subjects over time. Unexpectedly, this effect was reversed by vaccination. Our work identifies a novel aspect of immune dysfunction in mild/moderate COVID-19, supports the practice of offering SARS-CoV-2 vaccination regardless of infection history, and provides a potential mechanistic explanation for the vaccination-induced reduction of “Long-COVID” symptoms.

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  1. SciScore for 10.1101/2021.04.11.21255153: (What is this?)

    Please note, not all rigor criteria are appropriate for all manuscripts.

    Table 1: Rigor

    Institutional Review Board StatementIACUC: All work involving blood products from SARS-CoV-2-infected subjects were performed in a biosafety level 2+ (BSL-2+) laboratory utilizing protocols approved by the Rutgers Institutional Biosafety Committee.
    Randomizationnot detected.
    Blindingnot detected.
    Power Analysisnot detected.
    Sex as a biological variablenot detected.
    Cell Line Authenticationnot detected.

    Table 2: Resources

    Antibodies
    SentencesResources
    As negative control for SARS-CoV-2 antibody testing, we used 104 stored serum/plasma samples collected prior to the COVID-19 pandemic (Institutional review board of the Rutgers New Jersey Medical School, Pro0119980237 and Pro20150001314) and 103 serum samples obtained during the pandemic from subjects that remained SARS-CoV-2 PCR-negative and seronegative for at least 16 weeks following the test blood draw (43) (ClinicalTrials.gov registration number NCT04336215).
    SARS-CoV-2
    suggested: None
    To monitor depletion of antigen-specific antibodies, RBD- and N-specific IgG titers of untreated and absorbed samples were determined as described above, prior to use in neutralization assays.
    antigen-specific
    suggested: None
    For the detection of antigen-specific B cells, PBMCs were incubated with the RBD tetramer and antibodies to CD19-BV700 (HIB19, BioLegend), CD20-PE-CF594
    HIB19
    suggested: None
    Additionally, cells were stained with APC-labelled antibodies against CD3 (UCHT1, Thermo Fisher Scientific), CD4 (OKT4, Thermo Fisher Scientific), CD14 (C1D3, Thermo Fisher Scientific), and CD16 (CB16, Thermo Fisher Scientific) to eliminate non-B cells.
    CD3
    suggested: None
    UCHT1
    suggested: None
    CD4
    suggested: (BioLegend Cat# 391503, RRID:AB_2721611)
    OKT4
    suggested: None
    CD14
    suggested: (BioLegend Cat# 348805, RRID:AB_2889063)
    CD16
    suggested: None
    CB16
    suggested: None
    Experimental Models: Cell Lines
    SentencesResources
    Manassas VA) and HeLa cells stably expressing ACE2 (HeLa-ACE2) were obtained from Dennis Burton at the Scripps Research Institute (21)
    HeLa
    suggested: CLS Cat# 300194/p772_HeLa, RRID:CVCL_0030)
    The virus titers were determined by standard plaque assay utilizing Vero E6 cells (45) and recorded as plaque forming units per milliliter (PFU/mL).
    Vero E6
    suggested: RRID:CVCL_XD71)
    neutralization assay: HeLa-Ace2 cells were seeded in 96-well black optical-bottom plates at a density of 1 × 104 cells/well in FluoroBrite DMEM (Thermo Fisher Scientific) containing 4% FBS (Seradigm)
    HeLa-Ace2
    suggested: None
    Software and Algorithms
    SentencesResources
    Statistical Analysis: All flow cytometry data were analyzed with FlowJo v12 software (FlowJo LLC, Ashland OR).
    FlowJo
    suggested: (FlowJo, RRID:SCR_008520)
    Statistical analysis was performed with GraphPad Prism 8.4 (Graph Pad Software Inc.,
    GraphPad Prism
    suggested: (GraphPad Prism, RRID:SCR_002798)

    Results from OddPub: We did not detect open data. We also did not detect open code. Researchers are encouraged to share open data when possible (see Nature blog).


    Results from LimitationRecognizer: An explicit section about the limitations of the techniques employed in this study was not found. We encourage authors to address study limitations.

    Results from TrialIdentifier: We found the following clinical trial numbers in your paper:

    IdentifierStatusTitle
    NCT04336215RecruitingRutgers COVID-19 Cohort Study


    Results from Barzooka: We did not find any issues relating to the usage of bar graphs.


    Results from JetFighter: We did not find any issues relating to colormaps.


    Results from rtransparent:
    • Thank you for including a conflict of interest statement. Authors are encouraged to include this statement when submitting to a journal.
    • Thank you for including a funding statement. Authors are encouraged to include this statement when submitting to a journal.
    • No protocol registration statement was detected.

    About SciScore

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