Factors affecting the presentation of exogenous hepatitis B virus core antigen.
Indian J Exp Biol
;
2007 Aug; 45(8): 689-95
Artículo
en Inglés
| IMSEAR
| ID: sea-62768
ABSTRACT
Hepatitis B virus core antigen (HBcAg) plays a critical role in terminating acute Hepatitis B virus infection and may be used as a potential vaccine candidate. The cell surface major histocompatibility complex (MHC) class 1 molecules are thought to be involved in the presentation of HBcAg. Surface MHC class 1 HLA A2 heavy chain (HC) and trimeric molecules were characterized on transfected Hela cells used as antigen presenting cells (APC) for the presentation of HBcAg. The results show that antibodies against HC HLA A2 and trimeric HLA-A2 molecules resulted in increased activation of HBcAg 18-27 minimal peptide specific cytotoxic T lymphocytes (CTLs), while the addition of exogenous beta2-microglobulin decreased the activation of HBcAg specific CTLs. Further, specific CD8+ T cells were activated only when Hela cells as APCs were primed with HBcAg (peptide, soluble or embedded on virosomes) at pH 6.5.
Texto completo:
Disponible
Índice:
IMSEAR (Asia Sudoriental)
Asunto principal:
Péptidos
/
Humanos
/
Células HeLa
/
Activación de Linfocitos
/
Linfocitos T Citotóxicos
/
Antígeno HLA-A2
/
Microglobulina beta-2
/
Presentación de Antígeno
/
Anticuerpos contra la Hepatitis B
/
Antígenos del Núcleo de la Hepatitis B
Idioma:
Inglés
Revista:
Indian J Exp Biol
Año:
2007
Tipo del documento:
Artículo
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