What lurks beneath: IL-11, via Stat3, promotes inflammation-associated gastric tumorigenesis

J Clin Invest. 2008 May;118(5):1628-31. doi: 10.1172/JCI35344.

Abstract

Chronic inflammation in the stomach induces cellular transformation and gastric cancer primarily in the distal stomach or antrum. In this issue of the JCI, a study in mice by Ernst et al. provides new insight into the role of IL-11 and its glycoprotein 130 (gp130) receptor in inflammation-associated gastric epithelial cell oncogenic transformation, which they show is mediated by and dependent on increased activation of Stat3 and, to a lesser extent, Stat1 (see the related article beginning on page 1727). Prior studies from this group have shown that Stat3 hyperactivity stimulates the TGF-beta inhibitor Smad7. Collectively, the studies suggest that an important pathway of oncogenic transformation in the stomach is through suppression of growth inhibitory signals, such as members of the TGF-beta family, that originate from the stroma.

Publication types

  • Comment
  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Cell Transformation, Neoplastic
  • Cytokine Receptor gp130 / genetics
  • Cytokine Receptor gp130 / immunology
  • Gastric Mucosa / immunology
  • Gastric Mucosa / pathology
  • Humans
  • Inflammation / immunology*
  • Inflammation / pathology
  • Interleukin-11 / immunology*
  • Mice
  • STAT3 Transcription Factor / immunology*
  • Smad7 Protein / immunology
  • Stomach Neoplasms / immunology*
  • Stomach Neoplasms / pathology

Substances

  • Interleukin-11
  • STAT3 Transcription Factor
  • Smad7 Protein
  • Cytokine Receptor gp130