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Activated liver stellate cells in chronic viral C hepatitis: histopathological and immunohistochemical study

Nada R Tomanovic1, Ivan V Boricic, Dimitrije C Brasanac

  • 1Institute of Pathology, School of Medicine, University of Belgrade, Serbia. tnada@med.bg.ac.yu

Journal of Gastrointestinal and Liver Diseases : JGLD
|July 1, 2009
PubMed

Insights

In chronic C hepatitis, more activated hepatic stellate cells in portal spaces and fibrous septa correlate with advanced liver fibrosis. This finding suggests a potential prognostic marker for fibrosis progression.

Area of Science:

  • Hepatology
  • Gastroenterology
  • Immunohistochemistry

Background:

  • Activated hepatic stellate cells correlate with liver fibrosis and necroinflammation in viral hepatitis.
  • Previous studies have not specifically examined zonal distribution of these cells in chronic C hepatitis.
  • This study aimed to investigate the relationship between activated hepatic stellate cells in specific liver zones and fibrosis/necroinflammation in chronic C hepatitis.

Purpose of the Study:

  • To correlate the number of activated hepatic stellate cells in perivenular, intermediate, periportal areas, and fibrous septa with liver fibrosis stages and necroinflammatory activity.
  • To determine if zonal distribution of activated hepatic stellate cells provides prognostic information in chronic C hepatitis.

Main Methods:

  • Retrospective analysis of 20 chronic C hepatitis liver biopsies and 10 normal controls.
  • Immunohistochemical staining for alpha-smooth muscle actin to identify activated hepatic stellate cells.
  • Semiquantitative assessment of activated hepatic stellate cell immunoreactivity in different liver tissue zones.

Main Results:

  • A significant positive correlation was observed between the stage of fibrosis and the number of activated hepatic stellate cells in portal spaces and fibrous septa.
  • Increased numbers of activated hepatic stellate cells were noted in other liver zones, but without statistical significance.
  • No correlation was found between fibrosis stage, necroinflammatory activity, or the number of activated hepatic stellate cells and necroinflammatory activity.

Conclusions:

  • Increased activated hepatic stellate cells in portal spaces and fibrous septa may serve as a prognostic marker.
  • This finding could aid in predicting the development of advanced fibrosis and cirrhosis in chronic C hepatitis.
  • Further research may validate these cells as biomarkers for disease progression.
Abstract

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