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J Clin Pathol 57:861-866 doi:10.1136/jcp.2003.015487
  • Original article

Aberrant epithelial expression of trefoil family factor 2 and mucin 6 in Helicobacter pylori infected gastric antrum, incisura, and body and its association with antralisation

  1. H H-X Xia1,
  2. Y Yang1,
  3. S K Lam1,
  4. W M Wong1,
  5. S Y Leung2,
  6. S T Yuen2,
  7. G Elia3,
  8. N A Wright3,
  9. B C-Y Wong1
  1. 1Department of Medicine, The University of Hong Kong, Hong Kong, SAR China
  2. 2Department of Pathology, The University of Hong Kong, Hong Kong
  3. 3Histopathology Unit, Cancer Research UK, London WC2A 3PX, UK
  1. Correspondence to:
 Dr B C-Y Wong
 University Department of Medicine, Queen Mary Hospital, Pokfulam Road, Hong Kong; bcywonghku.hk
  • Accepted 11 February 2004

Abstract

Aims: To determine gastric expression of trefoil family factor 2 (TFF2) and MUC6 in Helicobacter pylori positive and negative subjects, and its association with antralisation at the gastric incisura.

Methods: Gastric biopsies from the antrum, incisura, and body of 76 dyspeptic patients without ulcers were used for the determination of H pylori infection, histological changes, and epithelial TFF2 and MUC6 expression.

Results: In the foveola, the rates of TFF2 and MUC6 immunostaining were greater in H pylori infected (n  =  27) than in uninfected patients (n  =  49) at the antrum (59.3% v 4.1% for TFF2 and 63.0% v 4.1% for MUC6; both p < 0.001) and incisura (44.4% v 2.0% for TFF2 and 48.1% v 0% for MUC6; both p < 0.001). In the deeper glands, the rates were also greater in H pylori infected than in uninfected patients at the incisura (85.2% v 22.4% for both TFF2 and MUC6; p < 0.001). Antral-type mucosa was present at the incisura in 28 of the 76 patients. TFF2 and MUC6 expression in the foveola and deeper glands was significantly associated with antral-type mucosa, independent of H pylori status.

Conclusions:Helicobacter pylori infection increases the expression of TFF2 and MUC6 in the gastric epithelium. Aberrant TFF2 and MUC6 expression is associated with antralisation of gastric incisura.

Footnotes

  • The first two authors contributed equally to this work