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Updated: Jul 13, 2026

In Vitro Differentiation of Human CD4+FOXP3+ Induced Regulatory T Cells (iTregs) from Naïve CD4+ T Cells Using a TGF-β-containing Protocol
08:20

In Vitro Differentiation of Human CD4+FOXP3+ Induced Regulatory T Cells (iTregs) from Naïve CD4+ T Cells Using a TGF-β-containing Protocol

Published on: December 30, 2016

Biochemistry and therapeutic implications of mechanisms involved in FOXP3 activity in immune suppression

Bin Li1, Sandra J Saouaf, Arabinda Samanta

  • 1Department of Pathology and Laboratory Medicine, University of Pennsylvania, 252 John Morgan Building, 36th and Hamilton Walk, Philadelphia, PA 19104-6082, USA.

Current Opinion in Immunology
|August 21, 2007
PubMed

Insights

Mutations in the FOXP3 gene cause autoimmune diseases by disrupting its function as a transcriptional regulator. This study investigates how FOXP3 protein modifications and its associated complexes impact regulatory T cell function.

Area of Science:

  • Immunology
  • Molecular Biology
  • Genetics

Background:

  • Mutations in the human FOXP3 gene are linked to autoimmune conditions.
  • The precise mechanisms by which mutant FOXP3 protein loses transcriptional regulatory function are not fully understood.
  • The interaction of FOXP3 with transcriptional machinery and its role in cellular suppression require further elucidation.

Purpose of the Study:

  • To investigate the post-translational modifications of the FOXP3 protein.
  • To understand how the FOXP3 complex ensemble, including histone modification and chromatin-remodeling enzymes, dictates its function in regulatory T cells.
  • To clarify the molecular mechanisms underlying FOXP3 activity for therapeutic applications.

Main Methods:

  • Focus on post-translational modifications of FOXP3.
  • Analysis of the FOXP3 complex ensemble.
  • Studies on the role of histone modification and chromatin-remodeling enzymes in FOXP3 function.

Main Results:

  • FOXP3 post-translational modifications are critical for its function.
  • The composition of the FOXP3 complex influences its regulatory activity.
  • Specific components of the FOXP3 ensemble mediate phenotypic changes in regulatory T cells.

Conclusions:

  • Understanding FOXP3 molecular mechanisms is key to treating autoimmune diseases.
  • FOXP3 function is modulated by its post-translational modifications and associated protein complexes.
  • This research has significant therapeutic implications for transplantation, allergy, autoimmune disease, and cancer.

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