Immunogenicity of novel Dengue virus epitopes identified by bioinformatic analysis.
Virus Res
; 153(1): 113-20, 2010 Oct.
Article
en En
| MEDLINE
| ID: mdl-20638434
We used T cell epitope prediction tools to identify epitopes from Dengue virus polyprotein sequences, and evaluated in vivo and in vitro the immunogenicity and antigenicity of the corresponding synthetic vaccine candidates. Twenty-two epitopes were predicted to have a high affinity for MHC class I (H-2Kd, H-2Dd, H-2Ld alleles) or class II (IAd alleles). These epitopes were conserved between the four virus serotypes, but with no similarity to human and mouse sequences. Thirteen synthetic peptides induced specific antibodies production with or without T cells activation in mice. Three synthetic peptides induced mostly IgG antibodies, and one of these from the E gene induced a neutralizing response. Ten peptides induced a combination of humoral and cellular responses by CD4+ and CD8+ T cells. Twelve peptides were novel B and T cell epitopes. These results indicate that our bioinformatics strategy is a powerful tool for the identification of novel antigens and its application to human HLA may lead to a potent epitope-based vaccine against Dengue virus and many other pathogens.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Epítopos de Linfocito T
/
Epítopos de Linfocito B
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Virus del Dengue
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Vacunas contra el Dengue
Límite:
Animals
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Humans
Idioma:
En
Revista:
Virus Res
Asunto de la revista:
VIROLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
México
Pais de publicación:
Países Bajos