Epigenetic regulation of Th2 cytokine expression in atopic diseases

Nicholas J. Van Panhuys, G. Le Gros, M. J. McConnell

Research output: Contribution to journalReview article

26 Citations (Scopus)

Abstract

The immune response to allergens starts with stimulation of a naïve T helper (Th) cell and its differentiation into a Th2 cell, expressing the cytokines interleukin (IL)-4, IL-5 and IL-13 responsible for the allergic response. The initial pattern of cytokine expression is retained during restimulation and division of the Th2 cell to create a population of specific allergen-responsive memory Th2 cells. Both, the coordinate cytokine expression and the inherited cytokine memory are specified by epigenetic mechanisms. Th2-specific changes in chromatin configuration at the Th2 locus act locally to open DNA, allowing recruitment of transcriptional machinery and rapid induction of cytokine expression. Induction of the transcription factor GATA3 is critical to this process. Loss of DNA methylation at the Th2 locus during differentiation from a naïve Th cell correlates to increased histone acetylation, consistent with the expression of IL-4, IL-5 and IL-13. The silencing of the Th2 locus in Th1 cells was associated with repressive histone methylation. These data indicate the formation of a 'poised' chromatin configuration at the Th2 locus that in combination with specific transcription factors specifies the cytokine repertoire in daughter cells and allows the immediate, rapid induction of cytokines by those cells in response to allergen.

Original languageEnglish
Pages (from-to)91-97
Number of pages7
JournalTissue Antigens
Volume72
Issue number2
DOIs
Publication statusPublished - Aug 2008
Externally publishedYes

Fingerprint

Epigenomics
Cytokines
Th2 Cells
Allergens
Interleukin-13
Interleukin-5
Interleukin-4
Histones
Chromatin
GATA3 Transcription Factor
Th1 Cells
DNA Methylation
Acetylation
Helper-Inducer T-Lymphocytes
Methylation
Cell Differentiation
Transcription Factors
DNA
Population

Keywords

  • Acetylation
  • Asthma
  • IL-4
  • Methylation
  • Th2

ASJC Scopus subject areas

  • Immunology
  • Cell Biology

Cite this

Epigenetic regulation of Th2 cytokine expression in atopic diseases. / Van Panhuys, Nicholas J.; Le Gros, G.; McConnell, M. J.

In: Tissue Antigens, Vol. 72, No. 2, 08.2008, p. 91-97.

Research output: Contribution to journalReview article

Van Panhuys, Nicholas J. ; Le Gros, G. ; McConnell, M. J. / Epigenetic regulation of Th2 cytokine expression in atopic diseases. In: Tissue Antigens. 2008 ; Vol. 72, No. 2. pp. 91-97.
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