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Updated: Jun 19, 2026
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Development and Functional Characterization of Murine Tolerogenic Dendritic Cells
Published on: May 18, 2018
CD40 signalling induces IL-10-producing, tolerogenic dendritic cells
Andrea Tuettenberg1, Sabine Fondel, Kerstin Steinbrink
1Department of Dermatology, Johannes-Gutenberg-University, Mainz, Germany. tuettenberg@hautklinik.klinik.uni-mainz.de
Experimental Dermatology
|November 6, 2009
Summary
Stimulating dendritic cells (DC) via the CD40-CD40L pathway generates tolerogenic DC. These cells, while expressing maturation markers, reduce T cell responses by enhancing IL-10 production, indicating an immunomodulatory function.
Area of Science:
- Immunology
- Cell Biology
Background:
- Dendritic cells (DC) are crucial antigen-presenting cells.
- Immature DC (iDC) promote regulatory T cell differentiation, while mature DC induce effector responses.
- The CD40-CD40L pathway's role in human DC differentiation and function requires further characterization.
Purpose of the Study:
- To investigate the impact of CD40-CD40L pathway stimulation on human dendritic cell differentiation and function.
- To analyze the phenotypic and functional changes in DC upon CD40-CD40L interaction.
Main Methods:
- Human iDC were transduced with adenoviral vectors encoding CD40L (Ad-CD40L) to create CD40L-DC.
- Phenotypic analysis included upregulation of CD83, CD80, and CD86.
- Cytokine profiles (IL-12p70, IL-10) and T cell stimulatory capacity were assessed.
Main Results:
- CD40L-DC exhibited a mature DC phenotype, similar to cytokine-stimulated DC.
- Ad-CD40L stimulation induced significant IL-12p70 production.
- Surprisingly, CD40L-DC showed reduced T cell stimulatory capacity and decreased antigen-specific IFN-gamma production in CD8(+) T cells.
- This reduction was linked to enhanced IL-10 production by CD40L-DC and stabilized IL-10 receptor expression on T cells.
Conclusions:
- CD40-CD40L pathway stimulation drives human DC differentiation into tolerogenic DC.
- These tolerogenic DC possess immunomodulatory functions, characterized by reduced T cell effector responses.
- The findings highlight the CD40-CD40L pathway as a target for modulating immune responses.
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