| Autor: |
Lassaunière, Ria, Polacek, Charlotta, Gram, Gregers J., Frische, Anders, Tingstedt, Jeanette Linnea, Krüger, Maren, Dorner, Brigitte G., Cook, Anthony, Brown, Renita, Orekov, Tatyana, Putmon-Taylor, Tammy, Campbell, Tracey-Ann, Greenhouse, Jack, Pessaint, Laurent, Andersen, Hanne, Lewis, Mark G., Fomsgaard, Anders |
| Předmět: |
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| Zdroj: |
NPJ Vaccines; 12/20/2021, Vol. 6 Issue 1, p1-13, 13p |
| Abstrakt: |
New generation plasmid DNA vaccines may be a safe, fast and simple emergency vaccine platform for preparedness against emerging viral pathogens. Applying platform optimization strategies, we tested the pre-clinical immunogenicity and protective effect of a candidate DNA plasmid vaccine specific for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The DNA vaccine induced spike-specific binding IgG and neutralizing antibodies in mice, rabbits, and rhesus macaques together with robust Th1 dominant cellular responses in small animals. Intradermal and intramuscular needle-free administration of the DNA vaccine yielded comparable immune responses. In a vaccination-challenge study of rhesus macaques, the vaccine demonstrated protection from viral replication in the lungs following intranasal and intratracheal inoculation with SARS-CoV-2. In conclusion, the candidate plasmid DNA vaccine encoding the SARS-CoV-2 spike protein is immunogenic in different models and confers protection against lung infection in nonhuman primates. Further evaluation of this DNA vaccine candidate in clinical trials is warranted. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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