Granulocyte-macrophage colony-stimulating factor DNA prime-protein boost strategy to enhance efficacy of a recombinant pertussis DNA vaccine.
Acta Pharmacol Sin
; 27(11): 1487-94, 2006 Nov.
Article
em En
| MEDLINE
| ID: mdl-17049126
ABSTRACT
AIM:
To investigate a new strategy to enhance the efficacy of a recombinant pertussis DNA vaccine. The strategy is co-injection with cytokine plasmids as prime, and boosted with purified homologous proteins.METHOD:
A recombinant pertussis DNA vaccine containing the pertussis toxin subunit 1 (PTS1), fragments of the filamentous hemagglutinin (FHA) gene and pertactin (PRN) gene encoding filamentous hemagglutinin and pertactin were constructed. Balb/c mice were immunized with several DNA vaccines and antigen-specific antibodies anti-PTS1,anti-PRN, anti-FHA,cytokines interleukin (IL)-10, IL-4, IFN-gamma,TNF-alpha,and splenocyte-proliferation assay were used to describe immune responses.RESULTS:
The recombinant DNA vaccine could elicit similar immune responses in mice as that of separate plasmids encoding the 3 fragments, respectively. Mice immunized with DNA and boosted with the corresponding protein elicited more antibodies than those that received DNA as boost. In particular, when the mice were co-immunized with murine granulocyte-macrophage colony-stimulating factor plasmids and boosted with proteins, all 4 cytokines and the 3 antigen-specific antibodies were significantly increased compared to the pVAX1 group. Anti-PTS1, anti- FHA, IL-4 and TNF-alpha elicited in the colony stimulating factor (CSF) prime-protein boost group showed significant increase compared to all the other groups.CONCLUSION:
This prime and boost strategy has proven to be very useful in improving the immunogenicity of DNA vaccines against pertussis.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bordetella pertussis
/
Vacina contra Coqueluche
/
Fator Estimulador de Colônias de Granulócitos e Macrófagos
/
Vacinas de DNA
Limite:
Animals
Idioma:
En
Ano de publicação:
2006
Tipo de documento:
Article