Vesicle interactions with antibody and peptide hormone: role of vesicle composition.
J Nucl Med
; 17(12): 1073-6, 1976 Dec.
Article
em En
| MEDLINE
| ID: mdl-993840
ABSTRACT
Artificial lipid vesicles (artificial membranes) were shown to bind human 125I-antithyroglobulin (anti-Tg) and human 125I-thyrotropin. Vesicles made with gangliosides bound more antibody and hormone than vesicles lacking them. These gangliosides contained a variety of carbohydrates including glucose, galactose, N-acetyl-galactosamine, and sialic acid. The in vivo stability of antibody-vesicle complexes was a function of vesicle composition vesicles were most stable when formed from phosphatidylcholine, cholesterol, and gangliosides. Anti-Tg-vesicle complexes bind to thyroglobulin, indicating that at least some of the antibody associated with the vesicle still retains ability to bind to its specific antigen. The addition of a specific antibody or hormone to artificial lipid vesicles may serve as a mechanism to confer specificity to the vesicle in vivo.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tireoglobulina
/
Tireotropina
/
Lipossomos
/
Anticorpos
Limite:
Humans
Idioma:
En
Ano de publicação:
1976
Tipo de documento:
Article