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Expression of platelet-derived growth factor-BB in liver tissues of patients with chronic hepatitis B

Song-Mei Lou1, You-Ming Li, Kai-Ming Wang

  • 1Department of Gastroenterology, Hangzhou First People's Hospital, Hangzhou 310006, Zhejiang Province, China. lousm_72@hotmail.com

World Journal of Gastroenterology
|February 5, 2004
PubMed

Insights

Platelet-derived growth factor-BB (PDGF-BB) expression correlates with liver inflammation and fibrosis in chronic hepatitis B. This suggests PDGF-BB may contribute to the development and progression of liver fibrosis.

Area of Science:

  • Hepatology
  • Oncology
  • Immunology

Background:

  • Chronic hepatitis B is a significant cause of liver disease worldwide.
  • Liver fibrosis is a key pathological process in chronic hepatitis B, potentially leading to cirrhosis and hepatocellular carcinoma.
  • Platelet-derived growth factor-BB (PDGF-BB) is a potent mitogen and signaling molecule implicated in tissue repair and fibrosis.

Purpose of the Study:

  • To investigate the association between PDGF-BB expression and fibrogenesis in patients with chronic hepatitis B.
  • To determine if PDGF-BB levels correlate with histological findings of inflammation and fibrosis.
  • To explore the relationship between tissue PDGF-BB expression and specific biomarkers of fibrosis in circulation.

Main Methods:

  • Hepatic tissue samples from 43 chronic hepatitis B patients were analyzed.
  • Histological assessment included HE and picric acid-sirius red staining for inflammation and fibrosis.
  • Immunohistochemistry quantified PDGF-BB expression; serum levels of hyaluronic acid, pro-collagen III, collagen IV, and laminin were measured by RIA.

Main Results:

  • PDGF-BB expression showed a significant positive correlation with inflammatory activity (tau=0.58) and fibrosis stage (tau=0.55) in liver tissue.
  • Tissue PDGF-BB levels were also positively correlated with serum concentrations of hyaluronic acid (r=0.52), pro-collagen III (r=0.32), collagen IV (r=0.40), and laminin (r=0.33).
  • These findings indicate a strong link between PDGF-BB and fibrotic processes in chronic hepatitis B.

Conclusions:

  • PDGF-BB expression is closely associated with liver inflammation and fibrosis in chronic hepatitis B.
  • The results suggest that PDGF-BB plays a role in the pathogenesis and advancement of liver fibrosis.
  • Targeting PDGF-BB may represent a potential therapeutic strategy for managing liver fibrosis in chronic hepatitis B.
Abstract

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