Construction and immune effect evaluation of the S protein heptad repeat-based nanoparticle vaccine against porcine epidemic diarrhea virus.
Virology
; 596: 110113, 2024 Aug.
Article
em En
| MEDLINE
| ID: mdl-38801794
ABSTRACT
Porcine epidemic diarrhea virus (PEDV), a highly virulent enteropathogenic coronavirus, is a significant threat to the pig industry. High frequency mutations in the PEDV genome have limited the effectiveness of current vaccines in providing immune protection. Developing efficient vaccines that can quickly adapt to mutant strains is a challenging but crucial task. In this study, we chose the pivotal protein heptad repeat (HR) responsible for coronavirus entry into host cells, as the vaccine antigen. HR-Fer nanoparticles prepared using ferritin were evaluated them as PEDV vaccine candidates. Nanoparticle vaccines elicited stronger neutralizing antibody responses in mice compared to monomer vaccines. Additionally, HR protein delivered via nanoparticles increased antigen uptake by antigen-presenting cells in vitro by 2.75-fold. The collective results suggest that HR can be used as antigens for vaccines, and the HR vaccine based on ferritin nanoparticles significantly enhances immunogenicity.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças dos Suínos
/
Vacinas Virais
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Infecções por Coronavirus
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Vírus da Diarreia Epidêmica Suína
/
Nanopartículas
/
Anticorpos Neutralizantes
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Glicoproteína da Espícula de Coronavírus
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Anticorpos Antivirais
Limite:
Animals
Idioma:
En
Revista:
Virology
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China
País de publicação:
Estados Unidos