PreprintCited by 0SARS-CoV-2 and COVID-19 ResearchMonoclonal and Polyclonal Antibodies ResearchSARS-CoV-2 detection and testing

Nanobody repertoire generated against the spike protein of ancestral SARS-CoV-2 remains efficacious against the rapidly evolving virus

Open access
Ketaren, Natalia E., Mast, Fred D., Fridy, Peter C., Olivier, Jean Paul, Sanyal, Tanmoy, Sali, Andrej, Chait, Brian T., Rout, Michael P. +1 more·2024·eLife

Preprint — published as 10.7554/elife.89423.3 · Paper page

Abstract

Abstract To date, all major modes of monoclonal antibody therapy targeting SARS-CoV-2 have lost significant efficacy against the latest circulating variants. As SARS-CoV-2 omicron sublineages account for over 90% of COVID-19 infections, evasion of immune responses generated by vaccination or exposure to previous variants poses a significant challenge. A compelling new therapeutic strategy against SARS-CoV-2 is that of single domain antibodies, termed nanobodies, which address certain limitations of monoclonal antibodies. Here we demonstrate that our high-affinity nanobody repertoire, generated against wild-type SARS-CoV-2 spike protein (Mast, Fridy et al. 2021), remains effective against variants of concern, including omicron BA.4/BA.5; a subset is predicted to counter resistance in emerging XBB and BQ.1.1 sublineages. Furthermore, we reveal the synergistic potential of nanobody cocktails in neutralizing emerging variants. Our study highlights the power of nanobody technology as a versatile therapeutic and diagnostic tool to combat rapidly evolving infectious diseases such as SARS-CoV-2.

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Authors
Ketaren, N. E., Mast, F. D., Fridy, P. C., Olivier, J. P., Sanyal, T., Sali, A., Chait, B. T., Rout, M. P., & Aitchison, J. D.
Affiliations
  • Rockefeller University (US)
  • Seattle Children's Research Institute (US)
  • QB3 (US)
  • Department of Bioengineering and Therapeutic Sciences, Department of Pharmaceutical Chemistry, California Institute for Quantitative Biosciences, Byers Hall, 1700 4th Street, Suite 503B, University of California
  • University of Washington (US)
Venue
eLife
Published
2024-04-15
ISSN
2050-084X (ISSN-L)
OpenAlex
W4394821273
Cited by
0
References
8
Type
posted content
Language
en
Open access
Locations
eLife (acceptedVersion, cc-by)
Funders
  • G. Harold and Leila Y. Mathers Foundation
  • Robertson Therapeutic Development Fund
  • Jain Foundation
  • National Institutes of Health (P41GM109824, R01GM083960)
  • American Lung Association (923055)
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 detection and testing
Keywords
nanobodies, SARS-CoV-2 spike protein, Omicron variant, BA.4/BA.5, BQ.1.1, neutralizing antibodies, COVID-19 treatment

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