Differential presentation of hepatitis B S-preS(2) particles and peptides by macrophages and B-cell like antigen-presenting cells.
Immunology
; 73(1): 88-94, 1991 May.
Article
em En
| MEDLINE
| ID: mdl-2045130
ABSTRACT
Different cell types, including dendritic cells, macrophages and Ia+ B cells, have been described to present soluble antigen (Ag) to T-cell hybridomas. However, it is still not clear whether these different cell types can act as antigen-presenting cells (APC) for complex and insoluble Ag such as viral particles. Using yeast recombinant hepatitis B S-preS(2)-containing particles, T-cell hybridomas were generated and used as a tool to study processing and presentation of antigen. Different types of APC were compared in regard to their capacity to process and present the protein-lipid composed S-preS(2) particles and the thereof derived T-cell epitope containing peptides by different types of APC. While a S-preS(2)-derived T-cell epitope containing peptide, which does not require processing, could be presented both by macrophage and B-cell like APC, the presentation of S-preS(2) particles required the presence of macrophages. The fact that B-cell like APC and macrophages behave differently with regard to the presentation of S-preS(2) particles suggest that the uptake and/or processing of this type of Ag by B-cell like APC and macrophages is different.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Precursores de Proteínas
/
Linfócitos B
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Antígenos de Superfície da Hepatite B
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Macrófagos
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Células Apresentadoras de Antígenos
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Antígenos Virais
Limite:
Animals
Idioma:
En
Revista:
Immunology
Ano de publicação:
1991
Tipo de documento:
Article
País de afiliação:
Bélgica