A capsid virus-like particle-based SARS-CoV-2 vaccine induces high levels of antibodies and protects Rhesus macaques

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Dokumenter

  • Fulltext

    Forlagets udgivne version, 2,48 MB, PDF-dokument

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a worldwide pandemic. Here, we present non-human primate immunogenicity and protective efficacy data generated with the capsid virus-like particle (cVLP)-based vaccine ABNCoV2 that has previously demonstrated immunogenicity in mice. In rhesus macaques, a single vaccination with either 15 or 100 μg ABNCoV2 induced binding and neutralizing antibodies in a dose-dependent manner, at levels comparable to those measured in human convalescents. A second vaccine administration led to a >50-fold increase in neutralizing antibodies, with 2-log higher mean levels in the 100-μg ABNCoV2 group compared with convalescent samples. Upon SARS-CoV-2 challenge, a significant reduction in viral load was observed for both vaccine groups relative to the challenge control group, with no evidence of enhanced disease. Remarkably, neutralizing antibody titers against an original SARS-CoV-2 isolate and against variants of concern were comparable, indicating a potential for broad protection afforded by ABNCoV2, which is currently in clinical testing.

OriginalsprogEngelsk
TidsskriftFrontiers in Immunology
Vol/bind13
Sider (fra-til)857440
ISSN1664-3224
DOI
StatusUdgivet - 2022

Bibliografisk note

Copyright © 2022 Volkmann, Koopman, Mooij, Verschoor, Verstrepen, Bogers, Idorn, Paludan, Vang, Nielsen, Sander, Schmittwolf, Hochrein and Chaplin.

Antal downloads er baseret på statistik fra Google Scholar og www.ku.dk


Ingen data tilgængelig

ID: 304747842