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A Simple and Efficient Method for Testing Immunomodulatory Agents for Generation of Tolerogenic Dendritic Cells from Human CD14+ Monocytes
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BTLA+ Dendritic Cells: The Regulatory T Cell Force Awakens
Thomas Simon1, Jonathan S Bromberg2
1Department of Surgery, University of Maryland School of Medicine, 29 South Greene Street, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, 800 West Baltimore Street, Baltimore, MD 21201, USA.
Immunity
|November 17, 2016
Summary
This study reveals how specific dendritic cells (DCs) induce regulatory T (Treg) cells. BTLA+DEC205+CD8+CD11c+ DCs engage HVEM to efficiently promote peripheral Treg cell induction, advancing tolerance research.
Area of Science:
- Immunology
- Cell Biology
- T Cell Regulation
Background:
- The precise mechanisms by which dendritic cells (DCs) induce antigen-specific tolerance via extrathymic regulatory T (Treg) cells are not fully understood.
- Regulatory T cells play a crucial role in maintaining immune homeostasis and preventing autoimmunity.
Purpose of the Study:
- To elucidate the role of specific dendritic cell subsets in the induction of peripheral Treg cells.
- To identify the molecular interactions between dendritic cells and T cells that mediate tolerance induction.
Main Methods:
- Characterization of dendritic cell subsets expressing BTLA and DEC205.
- Analysis of Treg cell induction in response to these specific dendritic cells.
- Investigation of the interaction between BTLA on DCs and HVEM on T cells.
Main Results:
- BTLA+DEC205+CD8+CD11c+ dendritic cells were identified as potent inducers of peripheral Treg cells.
- The interaction between BTLA on these DCs and its receptor HVEM was shown to be critical for Treg cell induction.
- This pathway efficiently promotes antigen-specific tolerance.
Conclusions:
- Specific dendritic cell subsets, identified by BTLA and DEC205 expression, are key players in extrathymic Treg cell induction.
- The BTLA-HVEM axis represents a novel target for modulating immune tolerance and treating autoimmune diseases.
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