Polarization of protective immunity induced by replication-incompetent adenovirus expressing glycoproteins of pseudorabies virus
Experimental & Molecular Medicine
; : 583-595, 2008.
Article
em En
| WPRIM
| ID: wpr-59829
Biblioteca responsável:
WPRO
ABSTRACT
Replication-incompetent adenoviruses expressing three major glycoproteins (gB, gC, and gD) of pseudorabies virus (PrV) were constructed and used to examine the ability of these glycoproteins to induce protective immunity against a lethal challenge. Among three constructs, recombinant adenovirus expressing gB (rAd-gB) was found to induce the most potent immunity biased to Th1-type, as determined by the IgG isotype ratio and the profile of the Th1/Th2 cytokine production. Conversely, the gC-expressing adenovirus (rAd-gC) revealed Th2-type immunity and the gD-expressing adenovirus (rAd-gD) induced lower levels of IFN-gamma and IL-4 production than other constructs, except IL-2 production. Mucosal delivery of rAd-gB induced mucosal IgA and serum IgG responses and biased toward Th2-type immune responses. However, these effects were not observed in response to systemic delivery of rAd-gB. In addition, rAd-gB appeared to induce effective protective immunity against a virulent viral infection, regardless of whether it was administered via the muscular or systemic route. These results suggest that administration of replication-incompetent adenoviruses can induce different types of immunity depending on the expressed antigen and that recombinant adenoviruses expressing gB induced the most potent Th1-biased humoral and cellular immunity and provided effective protection against PrV infection.
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Texto completo:
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Base de dados:
WPRIM
Assunto principal:
Pseudorraiva
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Suínos
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Replicação Viral
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Imunoglobulina G
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Glicoproteínas
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Linhagem Celular
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Adenoviridae
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Citocinas
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Herpesvirus Suídeo 1
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Células Th2
Limite:
Animals
Idioma:
En
Revista:
Experimental & Molecular Medicine
Ano de publicação:
2008
Tipo de documento:
Article