Bibliographic Details
| Title: |
Single MVA-SARS-2-ST/N Vaccination Rapidly Protects K18-hACE2 Mice against a Lethal SARS-CoV-2 Challenge Infection |
| Authors: |
Sabrina Clever, Leonard Limpinsel, Christian Meyer zu Natrup, Lisa-Marie Schünemann, Georg Beythien, Malgorzata Rosiak, Kirsten Hülskötter, Katharina Manuela Gregor, Tamara Tuchel, Georgia Kalodimou, Astrid Freudenstein, Satendra Kumar, Wolfgang Baumgärtner, Gerd Sutter, Alina Tscherne, Asisa Volz |
| Source: |
Viruses, Vol 16, Iss 3, p 417 (2024) |
| Publisher Information: |
MDPI AG, 2024. |
| Publication Year: |
2024 |
| Collection: |
LCC:Microbiology |
| Subject Terms: |
SARS-CoV-2, poxvirus, multivalent vaccine, K18-hACE2 mice, Microbiology, QR1-502 |
| More Details: |
The sudden emergence of SARS-CoV-2 demonstrates the need for new vaccines that rapidly protect in the case of an emergency. In this study, we developed a recombinant MVA vaccine co-expressing SARS-CoV-2 prefusion-stabilized spike protein (ST) and SARS-CoV-2 nucleoprotein (N, MVA-SARS-2-ST/N) as an approach to further improve vaccine-induced immunogenicity and efficacy. Single MVA-SARS-2-ST/N vaccination in K18-hACE2 mice induced robust protection against lethal respiratory SARS-CoV-2 challenge infection 28 days later. The protective outcome of MVA-SARS-2-ST/N vaccination correlated with the activation of SARS-CoV-2-neutralizing antibodies (nABs) and substantial amounts of SARS-CoV-2-specific T cells especially in the lung of MVA-SARS-2-ST/N-vaccinated mice. Emergency vaccination with MVA-SARS-2-ST/N just 2 days before lethal SARS-CoV-2 challenge infection resulted in a delayed onset of clinical disease outcome in these mice and increased titers of nAB or SARS-CoV-2-specific T cells in the spleen and lung. These data highlight the potential of a multivalent COVID-19 vaccine co-expressing S- and N-protein, which further contributes to the development of rapidly protective vaccination strategies against emerging pathogens. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
1999-4915 |
| Relation: |
https://www.mdpi.com/1999-4915/16/3/417; https://doaj.org/toc/1999-4915 |
| DOI: |
10.3390/v16030417 |
| Access URL: |
https://doaj.org/article/dce965dac07f41e881175ae99326794b |
| Accession Number: |
edsdoj.965dac07f41e881175ae99326794b |
| Database: |
Directory of Open Access Journals |
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