Related Experiment Video
Updated: Aug 8, 2026
Generation of Human CD40-activated B cells
Published on: October 17, 2009
Comparative analysis of CD80 and CD86 on human Langerhans cells: expression and function
H Yokozeki1, K Takayama, O Ohki
1Department of Dermatology, School of Medicine, Tokyo Medical and Dental University, Japan.
Insights
Cytokines regulate CD80 and CD86 expression on human Langerhans cells (LC). Granulocyte/macrophage colony-stimulating factor (GM-CSF) and interferon gamma (IFN-γ) enhance T-cell responses, while IL-10 suppresses them.
Area of Science:
- Immunology
- Cell Biology
Background:
- CD80 and CD86 are crucial co-stimulatory molecules for T-cell activation.
- Human Langerhans cells (LC) play a key role in initiating immune responses.
- The regulation and function of CD80/CD86 on human LC remain incompletely understood.
Purpose of the Study:
- To investigate the regulatory effects of T-helper type-1 and type-2 cytokines on CD80 and CD86 expression in human LC.
- To compare the functional consequences of cytokine-mediated CD80/CD86 modulation on LC-induced T-cell alloreactivity.
Main Methods:
- Human LC were cultured in the presence of various cytokines: IL-2, IFN-γ, IL-10, IL-4, and GM-CSF.
- Expression levels of CD80 and CD86 were assessed via flow cytometry.
- LC-mediated T-cell proliferation assays were performed after cytokine pretreatment.
Main Results:
- Freshly isolated LC showed minimal CD80/CD86 expression, which was rapidly induced by cytokines during 72-h incubation.
- CD86 expression was induced earlier and more strongly than CD80.
- GM-CSF and IL-10 modulated CD80/CD86 expression, while IL-4 and IFN-γ primarily affected CD86.
- GM-CSF and IFN-γ enhanced LC alloreactivity, whereas IL-10 decreased it.
Conclusions:
- Cytokines like IL-2, IL-4, GM-CSF, IFN-γ, and IL-10 can regulate CD80 and CD86 expression on human LC.
- These cytokine-mediated changes in CD80/CD86 impact LC's ability to stimulate T-cell responses.
- This highlights the dynamic interplay between cytokines and LC in modulating immune microenvironments.
Abstract:
Although both CD80 (B7-1) and CD86 (B7-2/B70) have been recently identified in cultured human Langerhans cells (LC), little is known of the role and regulatory properties of CD80 and CD86 on human LC. We present here the results of a study comparing the expression and function of CD80 and CD86 in human LC using the T-helper type-1 cytokines IL-2 and interferon gamma (IFN)-gamma, and the T-helper type-2 cytokines IL-10, IL-4 and granulocyte/macrophage colony-stimulating factor (GM-CSF). Freshly isolated human LC expressed little CD80 and CD86 in vitro, but the expression of both molecules was rapidly induced during a 72-h incubation with cytokines and the expression of CD86 occurred much earlier and more strongly than that of CD80. The expression of both CD80 and CD86 was upregulated by GM-CSF and downregulated by IL-10, and the expression of CD86, but not that of CD80, was upregulated by both IL-4 and IFN-gamma. Finally, pretreatment of LC with GM-CSF and IFN-gamma, but not with IL-4, enhanced the alloreactive T-cell proliferation induced by the LC, and IL-10 pretreatment of LC decreased their capacity for alloreaction. These results indicate that the expression of both CD80 and CD86 on human LC may be regulated by these cytokines (IL-2, IL-4, GM-CSF, IFN-gamma and IL-10) secreted from helper T cells infiltrating into the inflammatory microenvironment.
More Related Videos
08:31Characterization of Human Monocyte-derived Dendritic Cells by Imaging Flow Cytometry: A Comparison between Two Monocyte Isolation Protocols
Published on: October 18, 2016
12:09Use of Single Chain MHC Technology to Investigate Co-agonism in Human CD8+ T Cell Activation
Published on: February 28, 2019
