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Gut. 2001 Jul;49(1):73-81.

LI-cadherin: a marker of gastric metaplasia and neoplasia.

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  • 1Department of Internal Medicine, Division of Hepatology and Gastroenterology, Charité Medical School of the Humboldt University of Berlin, Berlin, Germany.

Abstract

BACKGROUND:

Intestinal metaplasia is considered a risk factor for the development of gastric adenocarcinomas of the intestinal type and is found in approximately 20% of gastric biopsies. Conventional histology only detects advanced stages of intestinal metaplasia.

AIMS:

To study expression of the enterocyte specific adhesion molecule liver-intestinal (LI)-cadherin in intestinal metaplasia as well as in gastric cancer, and to evaluate its use as a diagnostic marker molecule.

PATIENTS:

Gastric biopsies (n=77) from 30 consecutive patients (n=30; aged 28-90 years) as well as surgically resected tissue samples (n=24) of all types of gastric carcinomas were analysed.

METHODS:

Single and double label immunofluorescence detection on cryosections of gastric biopsies; alkaline phosphatase antialkaline phosphatase method on paraffin embedded carcinoma tissue sections.

RESULTS:

Of 77 biopsies (from 30 patients), 12 (from 10 patients) stained positive for LI-cadherin. LI-cadherin staining correlated with the presence of intestinal metaplasia. Conventional histological diagnosis however failed to detect subtle gastric intestinal metaplasia (three of 10 patients). In contrast, only LI-cadherin and villin were positive in these cases whereas sucrase-isomaltase also failed to detect intestinal metaplasia in four of 10 patients. Well differentiated gastric carcinomas showed intense staining for LI-cadherin while undifferentiated carcinomas showed only weak diffuse cytoplasmic staining.

CONCLUSIONS:

To detect early metaplastic changes in the gastric mucosa, LI-cadherin has a sensitivity superior to sucrase-isomaltase and conventional histology and comparable with that of villin. Its specificity exceeds that of villin. Thus LI-cadherin represents a new, reliable, and powerful marker molecule for early detection of gastric intestinal metaplasia and well differentiated adenocarcinomas.

PMID:
11413113
[PubMed - indexed for MEDLINE]
PMCID:
PMC1728355
Free PMC Article
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