ChAdOx1 nCoV-19 vaccine elicits monoclonal antibodies with cross-neutralizing activity against SARS-CoV-2 viral variants

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Abstract

No abstract available

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  1. SciScore for 10.1101/2021.09.27.461862: (What is this?)

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

    Table 1: Rigor

    Ethicsnot detected.
    Sex as a biological variablenot detected.
    Randomizationnot detected.
    Blindingnot detected.
    Power Analysisnot detected.
    Cell Line Authenticationnot detected.

    Table 2: Resources

    Antibodies
    SentencesResources
    Fab/Fc ELISA: 96-well plates (Corning, 3690) were coated with goat anti-human Fc IgG antibody at 3 μg/mL overnight at 4°C.
    anti-human Fc IgG
    suggested: None
    Secondary antibody, goat-anti-human-Fc-AP, was added at 1:1000 dilution in blocking buffer and incubated for 1 h at room temperature.
    goat-anti-human-Fc-AP
    suggested: None
    Experimental Models: Cell Lines
    SentencesResources
    Biotinylated Spike or RBD were expressed in 1L of HEK293F cells (Invitrogen) at a density of 1.5 × 106 cells/mL.
    HEK293F
    suggested: None
    SARS-CoV-2 pseudotyped virus preparation: Pseudotyped HIV-1 virus incorporating either the SARS-Cov-2 Wuhan, B.1.1.7, P.1, B.1.351, B.1.617.2 full-length Spike were produced in a 10 cm dish seeded the day prior with 5×106 HEK293T/17 cells in 10 mL of complete Dulbecco’s Modified Eagle’s Medium (DMEM-C, 10% fetal bovine serum (FBS) and 1% Pen/Strep (100 IU/mL penicillin and 100 mg/mL streptomycin)).
    HEK293T/17
    suggested: ATCC Cat# CRL-11268, RRID:CVCL_1926)
    Gibson assembly products were directly transfected into HEK-293T cells and transformed under ampicillin selection.
    HEK-293T
    suggested: CCLV Cat# CCLV-RIE 1018, RRID:CVCL_0063)
    IgG expression and purification: Ab heavy and light plasmids were co-transfected at a 1:1 ratio into HEK-293F cells (Thermofisher) using PEI Max (1 mg/mL, Polysciences, Inc.) at a 3:1 ratio (PEI Max:DNA).
    HEK-293F
    suggested: RRID:CVCL_6642)
    HeLa-ACE2 and HeLa cells were washed once with PBS and detached using PBS containing 5mM EDTA.
    HeLa-ACE2
    suggested: None
    HeLa
    suggested: CLS Cat# 300194/p772_HeLa, RRID:CVCL_0030)
    Recombinant DNA
    SentencesResources
    Spike and RBD were cloned into a pHLsec vector containing Avi and 6xHis tags (Aricescu et al., 2006).
    pHLsec
    suggested: None
    Software and Algorithms
    SentencesResources
    PBMCs were stained with live/dead (fixable Aqua Dead, Thermofisher), anti-CD3-APC/Cy7 (Biolegend), anti-CD8-APC-Cy7 (Biolegend), anti-CD14-BV510 (Biolegend), anti-CD19-PerCP-Cy5.5 (Biolegend), anti-IgM-PE (Biolegend), anti-IgD-Pacific Blue (Biolegend) and anti-IgG-PeCy7 (BD) and Spike-Alexa488 (Thermofisher Scientific, S32354) and Spike-APC (Thermofisher Scientific, S32362) or RBD-Alexa488 and RBD-APC.
    Thermofisher
    suggested: (ThermoFisher; SL 8; Centrifuge, RRID:SCR_020809)
    D’Agostino & Pearson normality test, Kruskal-Wallis test with Dunn’s multiple comparisons post hoc test, Ordinary one-way ANOVA with Tukey’s multiple comparisons post hoc test and two-sided binomial tests) were performed using GraphPad Prism software.
    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: We detected the following sentences addressing limitations in the study:
    Limitations of study: This study only examines mAbs isolated from one individual and therefore how representative these mAbs are of the humoral immune response against AZD1222 needs to be investigated further.

    Results from TrialIdentifier: No clinical trial numbers were referenced.


    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.

    Results from scite Reference Check: We found no unreliable references.


    About SciScore

    SciScore is an automated tool that is designed to assist expert reviewers by finding and presenting formulaic information scattered throughout a paper in a standard, easy to digest format. SciScore checks for the presence and correctness of RRIDs (research resource identifiers), and for rigor criteria such as sex and investigator blinding. For details on the theoretical underpinning of rigor criteria and the tools shown here, including references cited, please follow this link.