Alpha/beta interferon receptor deficiency in mice significantly enhances susceptibility of the animals to pseudorabies virus infection.
Vet Microbiol
; 203: 234-244, 2017 May.
Article
en En
| MEDLINE
| ID: mdl-28619150
ABSTRACT
Pseudorabies virus, one of the neurotropic viruses, can infect numerous mammals. In particular, pseudorabies virus infection of swine occurs worldwide, and is a major threat to swine industry. However, the mechanism underlying the interaction between pseudorabies virus and host innate immune system is not fully understood. Here, we investigated the involvement of interferon α/ß (IFN-α/ß) receptor (IFNAR) in the pathogenesis of pseudorabies virus in a mouse model. The results showed that IFNAR-deficient (IFNAR-/-) mice were highly susceptible to the virus infection, as evidenced by markedly reduced survival rate of infected animals and increased viral replication. The expression of IFN-α/ß and relevant interferon-stimulated genes in IFNAR-/- mice was significantly lower than that in wild-type (WT) littermates after the viral infection. Moreover, in response to the virus challenge, IFNAR-/- mice displayed elevated levels of inflammatory cytokines including interleukin 6 (IL-6) and IL-1ß, and IFNAR-/- cells showed increased phosphorylation of STAT3. Collectively, these data reveal that the IFNAR-/- mice are more sensitive to pseudorabies virus infection than WT animals, and excessive IL-6/STAT3 response in IFNAR-/- mice may contribute to the pathogenesis. Our findings suggest that type I IFNs/IFNAR-dependent homeostatic control of the innate immunity is required for host defense against pseudorabies virus infection.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Seudorrabia
/
Enfermedades de los Porcinos
/
Replicación Viral
/
Herpesvirus Suido 1
/
Susceptibilidad a Enfermedades
/
Receptor de Interferón alfa y beta
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Vet Microbiol
Año:
2017
Tipo del documento:
Article
País de afiliación:
China