Contact dependent suppression of CD4 T cell activation and proliferation by B cells activated through IgD cross-linking.
Immunology
; 2014 Sep 20.
Article
em En
| MEDLINE
| ID: mdl-25244010
ABSTRACT
Although the co-stimulatory interaction between B and T cells is well defined, recent evidence suggests that B cells also have a regulatory role. Here, we show that B cells activated using anti-IgD conjugated to dextran (α-δ-dex) directly inhibit TCR-induced CD4 T cell activation, proliferation and cytokine production. This effect was observed in CD4 T cells activated both with and without CD28 co-stimulation. T cell viability was unaffected, and the T cell suppressive effect was mediated by contact with IgD activated purified B cells and not by IL-10 or other soluble factors. This is the first evidence of IgD activated B cells mediating inhibition of activation and proliferation of CD4 T cells in humans. This article is protected by copyright. All rights reserved.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article