Intranasal, rectal and intraperitoneal immunization with protoxin Cry1Ac from Bacillus thuringiensis induces compartmentalized serum, intestinal, vaginal and pulmonary immune responses in Balb/c mice.
Microbes Infect
; 2(8): 885-90, 2000 Jul.
Article
em En
| MEDLINE
| ID: mdl-10962271
Recently we discovered that the Cry1Ac protoxin of Bacillus thuringiensis administered to Balb/c mice intraperitoneally (i.p.) or intragastrically is a systemic and intestinal immunogen as potent as cholera toxin. To further characterize the mucosal immunogenicity of Cry1Ac we additionally tried the intranasal (i.n.) and rectal routes and used enzyme-linked immunoassays to determine anti-Cry1Ac antibody responses in the serum as well as in vaginal and tracheobronchial washes and in the fluids of the large and the small intestine. Immunization by the i.p., i.n. and rectal routes induced IgM, IgG and IgA antibodies in all the mucosal surfaces analyzed, but the magnitude and predominant isotype of each response depended on the route used and the mucosal site analyzed. These data extend our findings on the striking mucosal immunogencity of Cry1Ac and provide additional evidence on the compartmentalization of the mucosal immune system.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Precursores de Proteínas
/
Bacillus thuringiensis
/
Proteínas de Bactérias
/
Toxinas Bacterianas
/
Endotoxinas
Limite:
Animals
Idioma:
En
Revista:
Microbes Infect
Assunto da revista:
ALERGIA E IMUNOLOGIA
/
MICROBIOLOGIA
Ano de publicação:
2000
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
França