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Related Experiment Video

Updated: Jun 23, 2026

Generation of Human Chimeric Antigen Receptor Regulatory T Cells

Generation of Human Chimeric Antigen Receptor Regulatory T Cells

Published on: January 3, 2025

Modeling IL-2 gene expression in human regulatory T cells.

Manuela Benary¹, Hanna Bendfeldt, Ria Baumgrass

¹Institute for Theoretical Biology, Humboldt University of Berlin, Invalidenstr. 43, 10115 Berlin, Germany. manuela.benary@cms.hu-berlin.de

Genome Informatics. International Conference on Genome Informatics

|May 9, 2009

Summary

Regulatory T cells (Treg cells) typically do not express Interleukin-2 (IL-2), but a small subset does. Mathematical models revealed that transcription factor ratios, not just amounts, influence IL-2 gene expression in individual Treg cells.

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Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

Published on: April 16, 2012

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Last Updated: Jun 23, 2026

Generation of Human Chimeric Antigen Receptor Regulatory T Cells

Generation of Human Chimeric Antigen Receptor Regulatory T Cells

Published on: January 3, 2025

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

Published on: April 16, 2012

Area of Science:

Immunology
Computational Biology
Molecular Biology

Background:

Interleukin-2 (IL-2) is a key cytokine produced by T helper (Th) cells upon antigen stimulation.
Regulatory T cells (Treg cells), crucial for immune homeostasis, are activated similarly to Th cells but traditionally do not express IL-2.
Treg cells uniquely express the transcription factor FoxP3.

Purpose of the Study:

To investigate IL-2 expression in individual Treg cells.
To develop mathematical models for IL-2 gene expression in single cells.
To explore the role of transcription factor levels and ratios in regulating IL-2 expression.

Main Methods:

Intracellular measurement of transcription factors NFAT and FoxP3, and the cytokine IL-2 using single-cell analysis.
Development and adaptation of mathematical models to human Treg cell data.
Statistical analysis of flow cytometry data to assess transcription factor importance.

Main Results:

A small fraction of Treg cells was identified as expressing IL-2.
Initial mathematical models were created to describe IL-2 gene expression dynamics at the single-cell level.
Data suggest that the concentration ratio of NFAT and FoxP3, in addition to their amounts, is significant for IL-2 expression.

Conclusions:

IL-2 expression is not entirely absent in Treg cells, challenging previous assumptions.
Mathematical modeling provides insights into the complex regulation of gene expression in individual immune cells.
The interplay and ratio of transcription factors NFAT and FoxP3 are critical determinants of IL-2 gene expression in Treg cells.