Cited by 572SARS-CoV-2 and COVID-19 ResearchSARS-CoV-2 detection and testingAnimal Virus Infections Studies

Measuring SARS-CoV-2 neutralizing antibody activity using pseudotyped and chimeric viruses

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Schmidt, Fabian, Weisblum, Yiska, Muecksch, Frauke, Hoffmann, Hans-Heinrich, Michailidis, Eleftherios, Lorenzi, Julio C.C., Mendoza, Pilar, Rutkowska, Magdalena +13 more·2020·Journal of Experimental Medicine

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Abstract

The emergence of SARS-CoV-2 and the ensuing explosive epidemic of COVID-19 disease has generated a need for assays to rapidly and conveniently measure the antiviral activity of SARS-CoV-2–specific antibodies. Here, we describe a collection of approaches based on SARS-CoV-2 spike-pseudotyped, single-cycle, replication-defective human immunodeficiency virus type-1 (HIV-1), and vesicular stomatitis virus (VSV), as well as a replication-competent VSV/SARS-CoV-2 chimeric virus. While each surrogate virus exhibited subtle differences in the sensitivity with which neutralizing activity was detected, the neutralizing activity of both convalescent plasma and human monoclonal antibodies measured using each virus correlated quantitatively with neutralizing activity measured using an authentic SARS-CoV-2 neutralization assay. The assays described herein are adaptable to high throughput and are useful tools in the evaluation of serologic immunity conferred by vaccination or prior SARS-CoV-2 infection, as well as the potency of convalescent plasma or human monoclonal antibodies.

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  • Binding to RBD and S and neutralizing activity all correlated with the interval from first dose to blood draw, and all three declined significantly over time.

    “Finally, RBD and S binding, and neutralizing activities were directly correlated to the time between the first vaccine dose and blood donation with significantly reduced levels in all 3 measurements with time (Fig. 1e, f and g, and Extended Data Fig. 2e–h)11.”
  • The present work and other small studies are unable to estimate the half-life of neutralizing activity accurately.

    “However, this and other small studies3,11 cannot accurately predict the half-life of the neutralizing response.”
  • ACE2 bound to the B.1.1.7 RBD with an affinity of 22 nM compared to 133 nM for the WT RBD.

    “We found that ACE2 bound to the B.1.1.7 RBD with an affinity of 22 nM compared to 133 nM for the WT RBD (Extended Data Fig. 8), in agreement with our previous deep-mutational scanning measurements using dimeric ACE232.”
  • Pseudotyped VSV particles adequately mimic key features of SARS-CoV-2 entry into target cells, including receptor and protease choice and neutralization by antibodies.

    “These pseudotyped particles adequately mimic key features of SARS-CoV-2 entry into target cells, including receptor and protease choice and neutralization by antibodies”
  • The VSV pseudotype system faithfully mimics key aspects of SARS-CoV-2 entry, including ACE2 engagement, TMPRSS2 priming, and antibody-mediated neutralization.

    “This system faithfully mimics key aspects of SARS-CoV-2 entry into cells, including ACE2 engagement, priming of the S protein by TMPRSS2, and antibody-mediated neutralization (Hoffmann et al., 2020b; Riepler et al., 2020; Schmidt et al., 2020).”

    From SARS-CoV-2 variants B.1.351 and P.1 escape from neutralizing antibodies (2021) · cites this paper as Schmidt et al., 2020

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Authors
Schmidt, F., Weisblum, Y., Muecksch, F., Hoffmann, H.-H., Michailidis, E., Lorenzi, J. C. C., Mendoza, P., Rutkowska, M., Bednarski, E., Gaebler, C., Agudelo, M., Cho, A., Wang, Z., Gazumyan, A., Cipolla, M., Caskey, M., Robbiani, D. F., Nussenzweig, M. C., Rice, C. M., Hatziioannou, T., & Bieniasz, P. D.
Affiliations
  • Rockefeller University (US)
  • Institute for Research in Biomedicine (CH)
  • Howard Hughes Medical Institute (US)
  • Laboratory of Retrovirology, The Rockefeller University, New York, NY 1
Venue
Journal of Experimental Medicine
Published
2020-07-21
Volume
217
Issue
11
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W3044702419
Cited by
572
References
45
Citations by year
2026: 25 · 2025: 48 · 2024: 53 · 2023: 83 · 2022: 146 · 2021: 162 · 2020: 55
FWCI
14.63
Type
journal article
Language
en
Open access
Locations
  • The Journal of Experimental Medicine (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • PubMed Central (submittedVersion, cc-by-nc-nd)
Funders
  • National Institutes of Health (P01AI138398-S1, 2U19AI111825, R01AI091707-10S1, R01AI078788, R37AI64003, UL1 TR001866)
  • George Mason University
  • European ATAC Consortium (EC101003650)
  • G. Harold and Leila Y. Mathers Charitable Foundation
  • Robert S. Wennett
  • National Center for Advancing Translational Sciences
  • Shapiro-Silverberg Fund for the Advancement of Translational Research
  • Howard Hughes Medical Institute
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 detection and testing
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Virus Infections Studies
Keywords
SARS-CoV-2, neutralizing antibodies, neutralization test, pseudovirus, vesicular stomatitis virus, spike protein, convalescent plasma, human monoclonal antibodies, COVID-19 pandemic

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