Title: Accessory signaling by CD40 for T cell activation: Induction of Th1 and Th2 cytokines and synergy with interleukin-12 for interferon-gamma production
Authors: Peng, XH ×
Kasran, Ahmad
Warmerdam, PAM
deBoer, M
Ceuppens, Jan #
Issue Date: Jul-1996
Publisher: Wiley-VCH
Series Title: European Journal of Immunology vol:26 issue:7 pages:1621-1627
Abstract: The interaction of CD40 ligand (CD40L) on activated T cells with CD40 on B cells, monocytes and dendritic cells is essential for humoral immunity and for up-regulation of antigen-presenting cell (APC) functions, as a result of signaling through CD40. There are also some indications that after interaction with CD40, CD40L can directly signal T cells. In this study we demonstrate that upon stimulation of human peripheral blood T cells through the T cell receptor (TCR)/CD3 complex, CD40/CD40L interaction strongly enhances the production of Th1 cytokines such as interleukin (IL)-2 and interferon (IFN)-gamma and Th2 cytokines such as IL-4, IL-5 and IL-10 by a direct effect on T cells. Furthermore, CD40/CD40L interaction synergizes with IL-12 in selectively enhancing IFN-gamma production by purified anti-CD3-stimulated T cells. These effects were observed at both the protein and the mRNA level. Both CD4(+) and CD8(+) T cells were able to produce IFN-gamma in the presence of helper signals from IL-12 and CD40, although CD8(+) T cells were less active. Since CD40/CD40L interaction also upregulates IL-12 production and B7 expression by APC, our results suggest that CD40/CD40L interaction is bidirectional, and promotes activation of both APC and T cells.
ISSN: 0014-2980
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory of Clinical Immunology
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science