Circulating antibodies directed against nitrosylated antigens in trypanosome-infected mice.
Exp Parasitol
; 105(3-4): 241-7, 2003.
Article
en En
| MEDLINE
| ID: mdl-14990318
ABSTRACT
Nitric oxide has been implicated as an effector cytotoxic molecule in trypanosomiasis. In this work, we investigated the presence of circulating antibodies directed against nitrosylated epitopes as biological indicators for nitric oxide (NO) production in the sera of trypanosome-infected mice. We tested these sera with synthetic antigens, such as S-nitrosated protein or nitrosylated conjugates of amino acids that possess a high affinity to NO, by an immunoenzymatic assay. We detected antibodies directed against nitroso epitopes in the sera of infected mice, as compared to non-infected control mice. The antibody response was linked to the IgM isotype. Our results indicate the production of NO and its derivatives in trypanosomiasis. This production may potentially induce the synthesis of nitroso epitopes in vivo and favor the development of a humoral immune response.
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Banco de datos:
MEDLINE
Asunto principal:
Tripanosomiasis Africana
/
Anticuerpos Antiprotozoarios
/
Epítopos
/
Antígenos de Protozoos
/
Compuestos Nitrosos
Límite:
Animals
Idioma:
En
Año:
2003
Tipo del documento:
Article