Identification of a Regulatory T Cell Specific Cell Surface Molecule that Mediates Suppressive Signals and Induces Foxp3 Expression
2008
Identifying a Molecule that Helps T Cells Suppress Immune Responses
Sample size: 5
publication
Evidence: moderate
Author Information
Author(s): Wang Rui, Wan Qi, Kozhaya Lina, Fujii Hodaka, Unutmaz Derya
Primary Institution: New York University School of Medicine
Hypothesis
How do regulatory T cells (Tregs) mediate their suppressive function?
Conclusion
The study identifies a cell surface molecule called GARP that plays a crucial role in the suppressive function of Tregs.
Supporting Evidence
- GARP is specifically expressed in activated Treg cells.
- Ectopic expression of GARP in TN cells induces Foxp3 expression.
- GARP-transduced cells exhibit impaired cytokine production.
- GARP function requires the extracellular region but not the cytoplasmic portion.
- Silencing GARP in Foxp3-induced Tregs reduces their suppressive activity.
Takeaway
Researchers found a special molecule on T cells that helps them calm down the immune system, which is important for preventing autoimmune diseases.
Methodology
The study involved isolating human T cell subsets, activating them, and analyzing gene expression through microarray and qPCR.
Participant Demographics
Healthy human donors were used for T cell isolation.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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