Efficacy of immune responses induced by anti-caries DNA vaccine-loaded bacterial ghost in mice / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 37-41, 2014.
Artigo
em Chinês
| WPRIM
| ID: wpr-274147
ABSTRACT
<p><b>OBJECTIVE</b>To develop an anti-caries DNA vaccine-loaded Salmonella typhimurium (St) ghost and enhance the efficacy of immune responses induced by anti-caries DNA vaccine via mucosal route.</p><p><b>METHODS</b>Both pREP4 and PhiX gene E expression plasmids were transformed into StJ357 and then induced with isopropyl β-D-1-thiogalactopyranoside (IPTG). The bacterial ghosts (BG) were collected after wash and loaded with anti-caries DNA vaccine pGJGLU/VAX. Mice were divided into four groups and immunized through the nasal route with pGJGLU/VAX-loaded BG (Group Ghost+pGJGLU/VAX), pVAX1-loaded BG (Group Ghost+pVAX1), pGJGLU/VAX-Bupivacaine complex (Group pGJGLU/VAX) and pVAX1-Bupivacaine complex (Group pVAX1), respectively. Enzyme-linked immunosorbent assay (ELISA) was used to evaluate the immune responses.</p><p><b>RESULTS</b>ELISA results showed that group Ghost+pGJGLU/VAX had significantly higher level of specific anti-GLU SIgA antibody [(0.367 ± 0.086) A/µg] compared with group Ghost+pVAX1 [(0.122 ± 0.077) A/µg], Group pGJGLU/VAX[(0.068 ± 0.068) A/µg] or Group pVAX1[(0.089 ± 0.089) A/µg] (P = 0.028, 0.012 or 0.030, respectively).</p><p><b>CONCLUSIONS</b>St ghost was developed successfully, which enhanced the efficacy of immune responses induced by anti-caries DNA vaccine pGJGLU/VAX via the nasal route.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Plasmídeos
/
Salmonella typhimurium
/
Imunoglobulina A Secretora
/
Vacinas Bacterianas
/
Anticorpos Antinucleares
/
Vacinas de DNA
/
Cárie Dentária
Limite:
Animais
Idioma:
Chinês
Revista:
Chinese Journal of Stomatology
Ano de publicação:
2014
Tipo de documento:
Artigo
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