Related Experiment Video
Updated: Feb 4, 2026
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Determination of Regulatory T Cell Subsets in Murine Thymus, Pancreatic Draining Lymph Node and Spleen Using Flow Cytometry
Published on: February 27, 2019
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A Cell-Intrinsic Role for RANK in Regulatory T Cells of the Human Thymus
Zoe-Isabella Junginger1,2, Ramona Adameck1,2, Alexandre A S F Raposo1,2
1GIMM- Gulbenkian Institute For Molecular Medicine, Lisbon, Portugal.
European Journal of Immunology
|February 3, 2026
Summary
Researchers discovered Receptor Activator of Nuclear Factor kappa-B (RANK) expression in human thymic regulatory T cells (Tregs), indicating a new role for the RANK-RANKL pathway in Treg development. This pathway may influence Treg maturation and proliferation.
Area of Science:
- Immunology
- Cell Biology
- Developmental Biology
Background:
- Regulatory T cells (Tregs) are crucial for maintaining immune tolerance.
- The thymic environment is critical for Treg development and selection.
- The RANK-RANKL signaling pathway is involved in various immune cell functions.
Purpose of the Study:
- To investigate the expression of RANK in human thymic Tregs.
- To elucidate the role of the RANK-RANKL axis in human tTreg development.
- To determine the factors that regulate RANK expression in Tregs.
Main Methods:
- Immunohistochemistry and flow cytometry to detect RANK expression in human thymic Tregs.
- Analysis of gene and protein expression levels.
- In vitro studies to assess the effects of IL-2 and IL-15 on RANK expression.
Main Results:
- RANK (TNFRSF11a) expression was identified in human thymic FOXP3+ Tregs.
- The RANK-RANKL axis plays a previously unrecognized role in human tTreg development.
- Interleukin-2 (IL-2) and Interleukin-15 (IL-15) were found to drive RANK expression in CD4+ tTregs.
- RANK expression modulation may impact Treg maturation and proliferation within the thymus.
Conclusions:
- The RANK-RANKL axis is a novel regulator of human thymic Treg development.
- IL-2 and IL-15 signaling contribute to the regulation of RANK expression in Tregs.
- Targeting the RANK-RANKL pathway could offer new therapeutic strategies for immune modulation.
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