Intradermal-delivered DNA vaccine induces durable immunity mediating a reduction in viral load in a rhesus macaque SARS-CoV-2 challenge model

Coronavirus disease 2019 (COVID-19), caused by the SARS-CoV-2 virus, has had a dramatic global impact on public health and social and economic infrastructures. Here, we assess the immunogenicity and anamnestic protective efficacy in rhesus macaques of an intradermal (i.d.)-delivered SARS-CoV-2 spike...

Descripción completa

Detalles Bibliográficos
Autores principales: Patel, Ami, Walters, Jewell N., Reuschel, Emma L., Schultheis, Katherine, Parzych, Elizabeth, Gary, Ebony N., Maricic, Igor, Purwar, Mansi, Eblimit, Zeena, Walker, Susanne N., Guimet, Diana, Bhojnagarwala, Pratik, Adeniji, Opeyemi S., Doan, Arthur, Xu, Ziyang, Elwood, Dustin, Reeder, Sophia M., Pessaint, Laurent, Kim, Kevin Y., Cook, Anthony, Chokkalingam, Neethu, Finneyfrock, Brad, Tello-Ruiz, Edgar, Dodson, Alan, Choi, Jihae, Generotti, Alison, Harrison, John, Tursi, Nicholas J., Andrade, Viviane M., Dia, Yaya, Zaidi, Faraz I., Andersen, Hanne, Abdel-Mohsen, Mohamed, Lewis, Mark G., Muthumani, Kar, Kim, J. Joseph, Kulp, Daniel W., Humeau, Laurent M., Ramos, Stephanie J., Smith, Trevor R.F., Weiner, David B., Broderick, Kate E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8479327/
https://www.ncbi.nlm.nih.gov/pubmed/34604818
http://dx.doi.org/10.1016/j.xcrm.2021.100420
Descripción
Sumario:Coronavirus disease 2019 (COVID-19), caused by the SARS-CoV-2 virus, has had a dramatic global impact on public health and social and economic infrastructures. Here, we assess the immunogenicity and anamnestic protective efficacy in rhesus macaques of an intradermal (i.d.)-delivered SARS-CoV-2 spike DNA vaccine, INO-4800, currently being evaluated in clinical trials. Vaccination with INO-4800 induced T cell responses and induced spike antigen and RBD binding antibodies with ADCP and ADCD activity. Sera from the animals neutralized both the D614 and G614 SARS-CoV-2 pseudotype viruses. Several months after vaccination, animals were challenged with SARS-CoV-2 resulting in rapid recall of anti-SARS-CoV-2 spike protein T cell and neutralizing antibody responses. These responses were associated with lower viral loads in the lung. These studies support the immune impact of INO-4800 for inducing both humoral and cellular arms of the adaptive immune system, which are likely important for providing durable protection against COVID-19 disease.

Ejemplares similares