Cited by 1,977SARS-CoV-2 and COVID-19 Researchvaccines and immunoinformatics approachesImmune responses and vaccinations

COVID-19 vaccine BNT162b1 elicits human antibody and TH1 T cell responses

Open access
Sahin, Ugur, Muik, Alexander, Derhovanessian, Evelyna, Vogler, Isabel, Kranz, Lena M., Vormehr, Mathias, Baum, Alina, Pascal, Kristen +34 more·2020·Nature

Published version of a preprint

Abstract

An effective vaccine is needed to halt the spread of the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) pandemic. Recently, we reported safety, tolerability and antibody response data from an ongoing placebo-controlled, observer-blinded phase I/II coronavirus disease 2019 (COVID-19) vaccine trial with BNT162b1, a lipid nanoparticle-formulated nucleoside-modified mRNA that encodes the receptor binding domain (RBD) of the SARS-CoV-2 spike protein 1. Here we present antibody and T cell responses after vaccination with BNT162b1 from a second, non-randomized open-label phase I/II trial in healthy adults, 18-55 years of age. Two doses of 1-50 μg of BNT162b1 elicited robust CD4+ and CD8+ T cell responses and strong antibody responses, with RBD-binding IgG concentrations clearly above those seen in serum from a cohort of individuals who had recovered from COVID-19. Geometric mean titres of SARS-CoV-2 serum-neutralizing antibodies on day 43 were 0.7-fold (1-μg dose) to 3.5-fold (50-μg dose) those of the recovered individuals. Immune sera broadly neutralized pseudoviruses with diverse SARS-CoV-2 spike variants. Most participants had T helper type 1 (T H 1)-skewed T cell immune responses with RBD-specific CD8+ and CD4+ T cell expansion. Interferon-γ was produced by a large fraction of RBD-specific CD8+ and CD4+ T cells. The robust RBD-specific antibody, T cell and favourable cytokine responses induced by the BNT162b1 mRNA vaccine suggest that it has the potential to protect against COVID-19 through multiple beneficial mechanisms.

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Crossref · 10.1038/s41586-020-2814-7

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  • Recognition of T cell epitopes across the entire spike length was one reason BNT162b2 was favoured over BNT162b1.

    “T cell recognition of epitopes spread across the entire length of S was one of the reasons to favour BNT162b2 over BNT162b1 14 .”

    From BNT162b2 vaccine induces neutralizing antibodies and poly-specific T cells in humans (2021) · cites this paper as [14]

    The Article section (page unavailable) says BNT162b2 encodes the full spike protein and was selected to advance, but gives its more favourable systemic tolerability as the reason. It does not report T-cell recognition of epitopes across the spike as a reason; the same section says epitope diversity was not analysed in this study. (LLM, conf=0.86)

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  • Together with reports of preserved neutralization of SARS-CoV-2 with key B.1.1.7 and B.1.351 spike mutations and of pseudovirus with the full B.1.1.7 spike mutation set, our data indicate broad BNT162b2-elicited immune recognition.

    “Together with recent reports of the preserved neutralization of SARS-CoV-2 with key S mutations found in the B.1.1.7 and the B.1.351lineage 39,40 , and neutralization of pseudovirus bearing the full set of mutations of B.1.1.7 S 41 , our data indicate broad BNT162b2-elicited immune recognition 2,13,14 .”

    From BNT162b2 vaccine induces neutralizing antibodies and poly-specific T cells in humans (2021) · cites this paper as [14]

    The Article section reports that BNT162b1 immune sera neutralized all 17 spike-variant pseudoviruses tested, supporting the general point that vaccination elicited broad recognition. This paper studied BNT162b1, however, not BNT162b2-elicited recognition; the B.1.1.7 and B.1.351 neutralization reports are cited separately in the sentence. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • To allow comparison with previously reported data on BioNTech-Pfizer RNA COVID-19 vaccines, sera for S1- and RBD-binding IgG were analyzed as previously described.

    “To enable the comparison of vaccine-induced S1-and RBD-binding IgG responses to previously reported data on the BioNTech-Pfizer RNA vaccines for COVID-19, sera were analysed as previously described 2,13,14 .”

    From BNT162b2 vaccine induces neutralizing antibodies and poly-specific T cells in humans (2021) · cites this paper as [14]

    The RBD-binding IgG assay section describes how the paper analysed participant sera for RBD-binding IgG, supporting the citation as a previously described method. The passages found do not describe an S1-binding IgG assay, so this source alone does not support that part of the sentence. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The CleanCap AG trinucleotide cap analog is used in the Pfizer-BioNTech vaccine.

    “we also evaluated the translatability of three mRNAs harboring the CleanCap AG trinucleotide cap analog used in the Pfizer-BioNTech vaccine.37,38”

    From Evaluation of synthetic mRNA with selected UTR sequences and alternative poly(A) tail, in vitro and in vivo (2025) · cites this paper as [38]

    The Manufacturing of RNA section says the Pfizer–BioNTech vaccine candidate BNT162b1 used a TriLink trinucleotide cap 1 analogue with the stated chemical structure. The Article section says a different candidate, BNT162b2, was selected to advance to phase II/III. This paper therefore supports use of a trinucleotide cap in BNT162b1, but does not establish that the marketed Pfizer–BioNTech vaccine uses CleanCap AG; it also does not name the cap as CleanCap AG. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Among convalescent serum donors, geometric mean neutralizing titers were 90 for symptomatic infections (n=35), 156 for asymptomatic infections (n=3), and 618 for hospitalized individuals (n=1).

    “GMTs in subgroups of the donors were as follows: symptomatic infections, 90 (n = 35); asymptomatic infections, 156 (n = 3); hospitalized, 618 (n = 1).”

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Research works printed but not linked: 6

  1. Rauch, S., Jasny, E., Schmidt, K. E. & Petsch, B. New vaccine technologies to combat outbreak situations. Front. Immunol. 9, 1963 (2018).
  2. Pardi, N. et al. Nucleoside-modified mRNA immunization elicits influenza virus hemagglutinin stalk-specific antibodies. Nat. Commun. 9, 3361 (2018).
  3. Zhang, L. et al. The D614G mutation in the SARS-CoV-2 spike protein reduces S1 shedding and increases infectivity. Preprint at https://www.biorxiv.org/content/10.1101/2020.06.12.1 48726v1 (2020). · DOI
  4. Chong, W. P. et al. The interferon gamma gene polymorphism +874 A/T is associated with severe acute respiratory syndrome. BMC Infect. Dis. 6, 82 (2006).
  5. Gallais, F. et al. Intrafamilial exposure to SARS-CoV-2 induces cellular immune response without seroconversion. Preprint at https://www.medrxiv.org/content/10.1101/2020.06.21. 20132449v1 (2020). · DOI
  6. Walsh, E. E. et al. RNA-Based COVID-19 vaccine BNT162b2 selected for a pivotal efficacy study. Preprint at https://www.medrxiv.org/content/10.1101/2020.08.17.20176651v2 (2020). · DOI

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Authors
Sahin, U., Muik, A., Derhovanessian, E., Vogler, I., Kranz, L. M., Vormehr, M., Baum, A., Pascal, K., Quandt, J., Maurus, D., Brachtendorf, S., Lörks, V., Sikorski, J., Hilker, R., Becker, D., Eller, A.-K., Grützner, J., Boesler, C., Rosenbaum, C., Kühnle, M.-C., Luxemburger, U., Kemmer-Brück, A., Langer, D., Bexon, M., Bolte, S., Karikó, K., Palanche, T., Fischer, B., Schultz, A., Shi, P.-Y., Fontes-Garfias, C., Perez, J. L., Swanson, K. A., Loschko, J., Scully, I. L., Cutler, M., Kalina, W., Kyratsous, C. A., Cooper, D., Dormitzer, P. R., Jansen, K. U., & Türeci, Ö.
Affiliations
  • BioNTech (Germany) (DE)
  • Regeneron (United States) (US)
  • Bexon Clinical Consulting (United States) (US)
  • Clinical Research Services (DE)
  • The University of Texas Medical Branch at Galveston (US)
  • Pfizer (United States) (US)
Venue
Nature
Published
2020-09-30
Volume
586
Issue
7830
Pages
594-599
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W3090844627
Cited by
1,977
References
13
Citations by year
2026: 96 · 2025: 133 · 2024: 197 · 2023: 274 · 2022: 537 · 2021: 657 · 2020: 77
FWCI
50.71
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • medRxiv (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Pfizer
  • Regeneron Pharmaceuticals
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
COVID-19 vaccines, SARS-CoV-2, mRNA vaccines, lipid nanoparticle formulation, spike protein receptor-binding domain, neutralizing antibodies, T cell response, CD4+ T cells, CD8+ T cells, Th1 response, interferon-gamma, pseudovirus neutralization, immune response
MeSH terms
COVID-19, COVID-19 Vaccines, Adult, Antibodies, Viral, Female, Germany, Humans, Immunoglobulin G, Male, Middle Aged, Pneumonia, Viral, Viral Vaccines, Cytokines, Coronavirus Infections, CD8-Positive T-Lymphocytes, Th1 Cells, Young Adult, Antibodies, Neutralizing, Pandemics

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