Evaluation of the immunogenicity of prime-boost vaccination with the replication-deficient viral vectored COVID-19 vaccine candidate ChAdOx1 nCoV-19

Clinical development of the COVID-19 vaccine candidate ChAdOx1 nCoV-19, a replication-deficient simian adenoviral vector expressing the full-length SARS-CoV-2 spike (S) protein was initiated in April 2020 following non-human primate studies using a single immunisation. Here, we compared the immunoge...

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Detalles Bibliográficos
Autores principales: Graham, Simon P., McLean, Rebecca K., Spencer, Alexandra J., Belij-Rammerstorfer, Sandra, Wright, Daniel, Ulaszewska, Marta, Edwards, Jane C., Hayes, Jack W. P., Martini, Veronica, Thakur, Nazia, Conceicao, Carina, Dietrich, Isabelle, Shelton, Holly, Waters, Ryan, Ludi, Anna, Wilsden, Ginette, Browning, Clare, Bialy, Dagmara, Bhat, Sushant, Stevenson-Leggett, Phoebe, Hollinghurst, Philippa, Gilbride, Ciaran, Pulido, David, Moffat, Katy, Sharpe, Hannah, Allen, Elizabeth, Mioulet, Valerie, Chiu, Chris, Newman, Joseph, Asfor, Amin S., Burman, Alison, Crossley, Sylvia, Huo, Jiandong, Owens, Raymond J., Carroll, Miles, Hammond, John A., Tchilian, Elma, Bailey, Dalan, Charleston, Bryan, Gilbert, Sarah C., Tuthill, Tobias J., Lambe, Teresa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Brief Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7385486/
https://www.ncbi.nlm.nih.gov/pubmed/32793398
http://dx.doi.org/10.1038/s41541-020-00221-3
Descripción
Sumario:Clinical development of the COVID-19 vaccine candidate ChAdOx1 nCoV-19, a replication-deficient simian adenoviral vector expressing the full-length SARS-CoV-2 spike (S) protein was initiated in April 2020 following non-human primate studies using a single immunisation. Here, we compared the immunogenicity of one or two doses of ChAdOx1 nCoV-19 in both mice and pigs. Whilst a single dose induced antigen-specific antibody and T cells responses, a booster immunisation enhanced antibody responses, particularly in pigs, with a significant increase in SARS-CoV-2 neutralising titres.

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