IJI-Iranian Journal of Immunology. 2009; 6 (2): 61-66
em Inglês
| IMEMR
| ID: emr-91229
ABSTRACT
Dendritic cells [DC] are a key regulator of the immune response, and interferon-beta [IFN-beta] is considered an immunomodulatory molecule for DC. The purpose of this study was to evaluate the ability of IFN-beta treated DC to induce cytokine secretion by CD4+ T cells Dendritic cells were generated from blood monocytes with granulocyte-monocyte colony-stimulating factor and interleukin-4 with or without IFN-beta. We analyzed the production of CD4+ T helper cytokines [IL-17, IFN- y and IL-10] in the supernatant of the dendritic cell-T cell co- cultures by ELISA. We also studied the effects of HLA-G and costimulatory molecules on immature and mature DC. IFN-? and IL-17 decreased significantly in the presence of HLA-Gbearing DC compared to control cultures [p < 0.05]. Using the mixed leukocyte reaction, we found that DC treated with IFN- beta mediated the inhibition of T cell activation via cytokine production. We conclude that this is important for preventing overactivation of the immune system
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Índice:
IMEMR (Mediterrâneo Oriental)
Assunto principal:
Células Dendríticas
/
Ensaio de Imunoadsorção Enzimática
/
Monócitos
/
Linfócitos T CD4-Positivos
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Citocinas
/
Interleucina-17
/
Sistema Imunitário
Idioma:
Inglês
Revista:
Iran. J. Immunol.
Ano de publicação:
2009
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