A Multifunctional Neutralizing Antibody-Conjugated Nanoparticle Inhibits and Inactivates SARS-CoV-2

Xiaolei Cai, Min Chen, Aleksander Prominski, Yiliang Lin, Nicholas Ankenbruck, Jillian Rosenberg, Mindy Nguyen, Jiuyun Shi, Anastasia Tomatsidou, Glenn Randall, Dominique Missiakas, John Fung, Eugene B. Chang, Pablo Penaloza-MacMaster, Bozhi Tian, Jun Huang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The outbreak of 2019 coronavirus disease (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has resulted in a global pandemic. Despite intensive research, the current treatment options show limited curative efficacies. Here the authors report a strategy incorporating neutralizing antibodies conjugated to the surface of a photothermal nanoparticle (NP) to capture and inactivate SARS-CoV-2. The NP is comprised of a semiconducting polymer core and a biocompatible polyethylene glycol surface decorated with high-affinity neutralizing antibodies. The multifunctional NP efficiently captures SARS-CoV-2 pseudovirions and completely blocks viral infection to host cells in vitro through the surface neutralizing antibodies. In addition to virus capture and blocking function, the NP also possesses photothermal function to generate heat following irradiation for inactivation of virus. Importantly, the NPs described herein significantly outperform neutralizing antibodies at treating authentic SARS-CoV-2 infection in vivo. This multifunctional NP provides a flexible platform that can be readily adapted to other SARS-CoV-2 antibodies and extended to novel therapeutic proteins, thus it is expected to provide a broad range of protection against original SARS-CoV-2 and its variants.

Original languageEnglish (US)
JournalAdvanced Science
DOIs
StateAccepted/In press - 2021

Keywords

  • COVID-19
  • SARS-CoV-2
  • multifunctional nanoparticle
  • photothermal therapy
  • virus inactivation

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'A Multifunctional Neutralizing Antibody-Conjugated Nanoparticle Inhibits and Inactivates SARS-CoV-2'. Together they form a unique fingerprint.

Cite this