Document Detail


Increased cell proliferation in chronic Helicobacter pylori positive gastritis and gastric carcinoma--correlation between immuno-histochemistry and Tv image cytometry.
MedLine Citation:
PMID:  11153608     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: [corrected] Epithelial cell proliferation activity has been reported both to be unaltered and increased in Helicobacter pylori (H. pylori) associated chronic gastritis. The proliferation rate decreased following H. pylori eradication, but results are controversial whether this change is dependent on the success of eradication. We compared the cell proliferation activity of H. pylori positive and negative gastric epithelial biopsies in chronic gastritis with and without intestinal metaplasia (IM) and gastric cancer by the expression of proliferation cell nuclear antigen (PCNA) and Tv image cytometry, and assessed the effect of H. pylori eradication on the cell proliferation rate in the gastric epithelium. METHODS: Brush smears and antral biopsies were taken from 70 patients (42 men, 28 women, mean age 58+/-15 y.o.) on routine endoscopy. Patients were divided into four groups according to the histology; normal epithelia (n = 10), chronic gastritis without IM (n = 24), chronic gastritis with IM (n = 20), and gastric carcinoma (n = 16). Thirty-three patients were H. pylori positive, and success of eradication was controlled in 24 cases. Cell proliferation was measured by immunohistochemistry using PCNA labeling index (LI) and by Tv image cytometry evaluating 12 morpho- and densitometric parameters of each nuclei and 6 additional parameters of each smear. RESULTS: PCNA LI, DNA index and S + G2 ratio were all higher in chronic gastritis than in the normal epithelium, and were further increased in carcinoma. The lower PCNA LI observed in chronic gastritis with IM corresponds to the lower S phase ratio determined by Tv image analysis. In H. pylori positive cases, the proliferation activity was 69.3+/-13.05% prior to the eradication and it decreased to 55.8+/-23.31% after the successful eradication therapy. When immunohistochemistry was compared with Tv image cytometry, PCNA LI significantly correlated with the percentage of cells in GL phase (r = -0.415) and S phase (r = 0.385), Integrated Optical Density mean (r = 0.598), density maximum (r'= 0.608), surface (r = 0.670), layers (r = 0.638), diameter minimum (r = 0.619), diameter maximum (r = 0.730) and perimeter (r = 0.501), respectively (p < 0.05). CONCLUSIONS: Epithelial cell turnover is increased in chronic gastritis with or without IM, and in gastric carcinoma. The lower PCNA LI observed in chronic gastritis with IM corresponds to the lower S phase ratio determined by Tv image analysis. Cell proliferation decreases after successful H. pylori eradication. Both methods proved to be reliable for the determination of epithelial cell proliferation.
Authors:
E Szaleczky; L Prónai; B Molnár; L Berczi; J Fehér; Z Tulassay
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Analytical cellular pathology : the journal of the European Society for Analytical Cellular Pathology     Volume:  20     ISSN:  0921-8912     ISO Abbreviation:  Anal Cell Pathol     Publication Date:  2000  
Date Detail:
Created Date:  2001-01-10     Completed Date:  2001-03-01     Revised Date:  2008-07-25    
Medline Journal Info:
Nlm Unique ID:  8911016     Medline TA:  Anal Cell Pathol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  131-9     Citation Subset:  IM    
Affiliation:
2nd Department of Internal Medicine, Clinical Gastroenterology and Endocrinology Unit, Semmelweis University of Medicine, Budapest, Hungary.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Cell Division
Chronic Disease
DNA, Neoplasm / analysis
Epithelium / pathology
Female
Gastritis / drug therapy,  microbiology,  pathology*
Helicobacter Infections / drug therapy,  pathology*
Humans
Image Cytometry
Immunohistochemistry
Male
Metaplasia / pathology
Middle Aged
Proliferating Cell Nuclear Antigen / analysis
Stomach / pathology
Stomach Neoplasms / pathology*
Video Recording
Chemical
Reg. No./Substance:
0/DNA, Neoplasm; 0/Proliferating Cell Nuclear Antigen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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