Regulation of epithelium-specific Ets-like factors ESE-1 and ESE-3 in airway epithelial cells: potential roles in airway inflammation

Cell Res. 2008 Jun;18(6):649-63. doi: 10.1038/cr.2008.57.

Abstract

Airway inflammation is the hallmark of many respiratory disorders, such as asthma and cystic fibrosis. Changes in airway gene expression triggered by inflammation play a key role in the pathogenesis of these diseases. Genetic linkage studies suggest that ESE-2 and ESE-3, which encode epithelium-specific Ets-domain-containing transcription factors, are candidate asthma susceptibility genes. We report here that the expression of another member of the Ets family transcription factors ESE-1, as well as ESE-3, is upregulated by the inflammatory cytokines interleukin-1beta (IL-1beta) and tumor necrosis factor-alpha (TNF-alpha) in bronchial epithelial cell lines. Treatment of these cells with IL-1beta and TNF-alpha resulted in a dramatic increase in mRNA expression for both ESE-1 and ESE-3. We demonstrate that the induced expression is mediated by activation of the transcription factor NF-kappaB. We have characterized the ESE-1 and ESE-3 promoters and have identified the NF-kappaB binding sequences that are required for the cytokine-induced expression. In addition, we also demonstrate that ESE-1 upregulates ESE-3 expression and downregulates its own induction by cytokines. Finally, we have shown that in Elf3 (homologous to human ESE-1) knockout mice, the expression of the inflammatory cytokine interleukin-6 (IL-6) is downregulated. Our findings suggest that ESE-1 and ESE-3 play an important role in airway inflammation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Base Sequence
  • Cell Line
  • Cytokines / pharmacology
  • DNA-Binding Proteins / genetics*
  • DNA-Binding Proteins / metabolism
  • Down-Regulation / drug effects
  • Epithelial Cells / metabolism*
  • Epithelium / drug effects
  • Epithelium / metabolism*
  • Humans
  • Inflammation / genetics
  • Inflammation Mediators / pharmacology
  • Lipopolysaccharides / pharmacology
  • Mice
  • Mice, Knockout
  • Molecular Sequence Data
  • NF-kappa B / metabolism
  • Organ Specificity / drug effects
  • Promoter Regions, Genetic / genetics
  • Protein Binding / drug effects
  • Proto-Oncogene Proteins / genetics*
  • Proto-Oncogene Proteins / metabolism
  • Proto-Oncogene Proteins c-ets
  • Respiratory System / drug effects
  • Respiratory System / metabolism*
  • Respiratory System / pathology*
  • Sequence Deletion
  • Transcription Factors / genetics*
  • Transcription Factors / metabolism
  • Up-Regulation / drug effects
  • Up-Regulation / genetics

Substances

  • Cytokines
  • DNA-Binding Proteins
  • EHF protein, human
  • ELF3 protein, human
  • Elf3 protein, mouse
  • Inflammation Mediators
  • Lipopolysaccharides
  • NF-kappa B
  • Proto-Oncogene Proteins
  • Proto-Oncogene Proteins c-ets
  • Transcription Factors