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Maternal Immunization Using a Protein Subunit Vaccine Mediates Passive Immunity against Zaire ebolavirus in a Murine Model

The Ebola virus has caused outbreaks in Central and West Africa, with high rates of morbidity and mortality. Clinical trials of recombinant virally vectored vaccines did not explicitly include pregnant or nursing women, resulting in a gap in knowledge of vaccine-elicited maternal antibody and its po...

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Autores principales: Williams, Caitlin A., Wong, Teri Ann S., Ball, Aquena H., Lieberman, Michael M., Lehrer, Axel T.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9785068/
https://www.ncbi.nlm.nih.gov/pubmed/36560788
http://dx.doi.org/10.3390/v14122784
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author Williams, Caitlin A.
Wong, Teri Ann S.
Ball, Aquena H.
Lieberman, Michael M.
Lehrer, Axel T.
author_facet Williams, Caitlin A.
Wong, Teri Ann S.
Ball, Aquena H.
Lieberman, Michael M.
Lehrer, Axel T.
author_sort Williams, Caitlin A.
collection PubMed
description The Ebola virus has caused outbreaks in Central and West Africa, with high rates of morbidity and mortality. Clinical trials of recombinant virally vectored vaccines did not explicitly include pregnant or nursing women, resulting in a gap in knowledge of vaccine-elicited maternal antibody and its potential transfer. The role of maternal antibody in Ebola virus disease and vaccination remains understudied. Here, we demonstrate that a protein subunit vaccine can elicit robust humoral responses in pregnant mice, which are transferred to pups in breastmilk. These findings indicate that an intramuscular protein subunit vaccine may elicit Ebola-specific IgG capable of being transferred across the placenta as well as into the breastmilk. We have previously shown protective efficacy with these vaccines in non-human primates, offering a potential safe and practical alternative to recombinant virally vectored vaccines for pregnant and nursing women in Ebola endemic regions.
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spelling pubmed-97850682022-12-24 Maternal Immunization Using a Protein Subunit Vaccine Mediates Passive Immunity against Zaire ebolavirus in a Murine Model Williams, Caitlin A. Wong, Teri Ann S. Ball, Aquena H. Lieberman, Michael M. Lehrer, Axel T. Viruses Article The Ebola virus has caused outbreaks in Central and West Africa, with high rates of morbidity and mortality. Clinical trials of recombinant virally vectored vaccines did not explicitly include pregnant or nursing women, resulting in a gap in knowledge of vaccine-elicited maternal antibody and its potential transfer. The role of maternal antibody in Ebola virus disease and vaccination remains understudied. Here, we demonstrate that a protein subunit vaccine can elicit robust humoral responses in pregnant mice, which are transferred to pups in breastmilk. These findings indicate that an intramuscular protein subunit vaccine may elicit Ebola-specific IgG capable of being transferred across the placenta as well as into the breastmilk. We have previously shown protective efficacy with these vaccines in non-human primates, offering a potential safe and practical alternative to recombinant virally vectored vaccines for pregnant and nursing women in Ebola endemic regions. MDPI 2022-12-14 /pmc/articles/PMC9785068/ /pubmed/36560788 http://dx.doi.org/10.3390/v14122784 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Williams, Caitlin A.
Wong, Teri Ann S.
Ball, Aquena H.
Lieberman, Michael M.
Lehrer, Axel T.
Maternal Immunization Using a Protein Subunit Vaccine Mediates Passive Immunity against Zaire ebolavirus in a Murine Model
title Maternal Immunization Using a Protein Subunit Vaccine Mediates Passive Immunity against Zaire ebolavirus in a Murine Model
title_full Maternal Immunization Using a Protein Subunit Vaccine Mediates Passive Immunity against Zaire ebolavirus in a Murine Model
title_fullStr Maternal Immunization Using a Protein Subunit Vaccine Mediates Passive Immunity against Zaire ebolavirus in a Murine Model
title_full_unstemmed Maternal Immunization Using a Protein Subunit Vaccine Mediates Passive Immunity against Zaire ebolavirus in a Murine Model
title_short Maternal Immunization Using a Protein Subunit Vaccine Mediates Passive Immunity against Zaire ebolavirus in a Murine Model
title_sort maternal immunization using a protein subunit vaccine mediates passive immunity against zaire ebolavirus in a murine model
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9785068/
https://www.ncbi.nlm.nih.gov/pubmed/36560788
http://dx.doi.org/10.3390/v14122784
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