Single B cells reveal the antibody responses of rhesus macaques immunized with an inactivated enterovirus D68 vaccine.
Arch Virol
; 165(8): 1777-1789, 2020 Aug.
Article
em En
| MEDLINE
| ID: mdl-32462286
ABSTRACT
Enterovirus D68 (EV-D68) infection may cause severe respiratory system manifestations in pediatric populations. Because of the lack of an effective preventive vaccine or specific therapeutic drug for this infection, the development of EV-D68-specific vaccines and antibodies has become increasingly important. In this study, we prepared an experimental EV-D68 vaccine inactivated by formaldehyde and found that the serum of rhesus macaques immunized with the inactivated EV-D68 vaccine exhibited potent neutralizing activity against EV-D68 virus in vitro. Subsequently, the antibody-mediated immune response of B cells elicited by the inactivated vaccine was evaluated in a rhesus monkey model. The binding activity, in vitro neutralization activity, and sequence properties of 28 paired antibodies from the rhesus macaques' EV-D68-specific single memory B cells were analyzed, and the EV-D68 VP1-specific antibody group was found to be the main constituent in vivo. Intriguingly, we also found a synergistic effect among the E15, E18 and E20 monoclonal antibodies from the rhesus macaques. Furthermore, we demonstrated the protective efficacy of maternal antibodies in suckling C57BL/6 mice. This study provides valuable information for the future development of EV-D68 vaccines.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vacinas Virais
/
Linfócitos B
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Vacinas de Produtos Inativados
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Enterovirus
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Infecções por Enterovirus
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Macaca mulatta
/
Anticorpos Antivirais
Limite:
Animals
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Female
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Humans
Idioma:
En
Revista:
Arch Virol
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
China