Ebola-GP DNA Prime rAd5-GP Boost: Influence of Prime Frequency and Prime/Boost Time Interval on the Immune Response in Non-human Primates
Heterologous prime-boost immunization regimens are a common strategy for many vaccines. DNA prime rAd5-GP boost immunization has been demonstrated to protect non-human primates against a lethal challenge of Ebola virus, a pathogen that causes fatal hemorrhagic disease in humans. This protection corr...
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doaj-b4caaee040c843a1b868725d032c92b42021-03-09T05:01:03ZengFrontiers Media S.A.Frontiers in Immunology1664-32242021-03-011210.3389/fimmu.2021.627688627688Ebola-GP DNA Prime rAd5-GP Boost: Influence of Prime Frequency and Prime/Boost Time Interval on the Immune Response in Non-human PrimatesHadar MarcusEmily ThompsonYan ZhouMichael BaileyMitzi M. DonaldsonDaphne A. StanleyClement AsieduKathryn E. FouldsMario RoedererJuan I. MolivaNancy J. SullivanHeterologous prime-boost immunization regimens are a common strategy for many vaccines. DNA prime rAd5-GP boost immunization has been demonstrated to protect non-human primates against a lethal challenge of Ebola virus, a pathogen that causes fatal hemorrhagic disease in humans. This protection correlates with antibody responses and is also associated with IFNγ+ TNFα+ double positive CD8+ T-cells. In this study, we compared single DNA vs. multiple DNA prime immunizations, and short vs. long time intervals between the DNA prime and the rAd5 boost to evaluate the impact of these different prime-boost strategies on vaccine-induced humoral and cellular responses in non-human primates. We demonstrated that DNA/rAd5 prime-boost strategies can be tailored to induce either CD4+ T-cell or CD8+ T-cell dominant responses while maintaining a high magnitude antibody response. Additionally, a single DNA prime immunization generated a stable memory response that could be boosted by rAd5 3 years later. These results suggest DNA/rAd5 prime-boost provides a flexible platform that can be fine-tuned to generate desirable T-cell memory responses.https://www.frontiersin.org/articles/10.3389/fimmu.2021.627688/fullvaccineEbolaprimeboostCD8+CD4+ |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hadar Marcus Emily Thompson Yan Zhou Michael Bailey Mitzi M. Donaldson Daphne A. Stanley Clement Asiedu Kathryn E. Foulds Mario Roederer Juan I. Moliva Nancy J. Sullivan |
spellingShingle |
Hadar Marcus Emily Thompson Yan Zhou Michael Bailey Mitzi M. Donaldson Daphne A. Stanley Clement Asiedu Kathryn E. Foulds Mario Roederer Juan I. Moliva Nancy J. Sullivan Ebola-GP DNA Prime rAd5-GP Boost: Influence of Prime Frequency and Prime/Boost Time Interval on the Immune Response in Non-human Primates Frontiers in Immunology vaccine Ebola prime boost CD8+ CD4+ |
author_facet |
Hadar Marcus Emily Thompson Yan Zhou Michael Bailey Mitzi M. Donaldson Daphne A. Stanley Clement Asiedu Kathryn E. Foulds Mario Roederer Juan I. Moliva Nancy J. Sullivan |
author_sort |
Hadar Marcus |
title |
Ebola-GP DNA Prime rAd5-GP Boost: Influence of Prime Frequency and Prime/Boost Time Interval on the Immune Response in Non-human Primates |
title_short |
Ebola-GP DNA Prime rAd5-GP Boost: Influence of Prime Frequency and Prime/Boost Time Interval on the Immune Response in Non-human Primates |
title_full |
Ebola-GP DNA Prime rAd5-GP Boost: Influence of Prime Frequency and Prime/Boost Time Interval on the Immune Response in Non-human Primates |
title_fullStr |
Ebola-GP DNA Prime rAd5-GP Boost: Influence of Prime Frequency and Prime/Boost Time Interval on the Immune Response in Non-human Primates |
title_full_unstemmed |
Ebola-GP DNA Prime rAd5-GP Boost: Influence of Prime Frequency and Prime/Boost Time Interval on the Immune Response in Non-human Primates |
title_sort |
ebola-gp dna prime rad5-gp boost: influence of prime frequency and prime/boost time interval on the immune response in non-human primates |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Immunology |
issn |
1664-3224 |
publishDate |
2021-03-01 |
description |
Heterologous prime-boost immunization regimens are a common strategy for many vaccines. DNA prime rAd5-GP boost immunization has been demonstrated to protect non-human primates against a lethal challenge of Ebola virus, a pathogen that causes fatal hemorrhagic disease in humans. This protection correlates with antibody responses and is also associated with IFNγ+ TNFα+ double positive CD8+ T-cells. In this study, we compared single DNA vs. multiple DNA prime immunizations, and short vs. long time intervals between the DNA prime and the rAd5 boost to evaluate the impact of these different prime-boost strategies on vaccine-induced humoral and cellular responses in non-human primates. We demonstrated that DNA/rAd5 prime-boost strategies can be tailored to induce either CD4+ T-cell or CD8+ T-cell dominant responses while maintaining a high magnitude antibody response. Additionally, a single DNA prime immunization generated a stable memory response that could be boosted by rAd5 3 years later. These results suggest DNA/rAd5 prime-boost provides a flexible platform that can be fine-tuned to generate desirable T-cell memory responses. |
topic |
vaccine Ebola prime boost CD8+ CD4+ |
url |
https://www.frontiersin.org/articles/10.3389/fimmu.2021.627688/full |
work_keys_str_mv |
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