Matrix metalloproteinase (MMP)-3 polymorphism in patients with HBV related chronic liver disease

Hyun Phil Shin1, Joung Il Lee, Joo-Ho Jung

  • 1Department of Internal Medicine, East-West Neo Medical Center, Kyung Hee University College of Medicine, Gangdong-gu, Seoul 134-090, Korea.

Insights

Matrix metalloproteinase-3 (MMP-3) gene polymorphism may influence liver fibrosis progression in chronic hepatitis B. Lower platelet counts were observed in MMP-3 5A allele carriers, suggesting a potential role in liver cirrhosis development.

Area of Science:

  • Hepatology
  • Genetics
  • Immunology

Background:

  • Liver fibrosis progression is a significant complication in chronic hepatitis B (CHB) patients.
  • Matrix metalloproteinases (MMPs), particularly MMP-3, are implicated in the pathogenesis of liver fibrosis.
  • Understanding genetic factors influencing fibrosis progression is crucial for patient management.

Purpose of the Study:

  • To investigate the association between MMP-3 gene polymorphism and liver cirrhosis in Korean patients with CHB.
  • To explore the relationship between MMP-3 genotypes and clinical parameters, such as platelet count, in CHB patients.

Main Methods:

  • Genomic DNA was collected from 127 CHB patients, 92 with hepatitis B virus (HBV)-related liver cirrhosis (HBV-LC), and 146 healthy controls.
  • MMP-3 polymorphism was analyzed using polymerase-chain reaction (PCR)-based assays.
  • Statistical analyses were performed to compare genotype distributions and clinical parameters among the groups.

Main Results:

  • No significant differences in MMP-3 genotype distributions were found among the CHB, HBV-LC, and healthy control groups.
  • A statistically significant lower peripheral platelet count was observed in MMP-3 5A allele carriers compared to 6A homozygotes within the HBV-LC group (P = 0.02).
  • MMP-3 promoter polymorphism (rs3025058) was associated with lower platelet counts in 5A carriers, correlating with advanced liver cirrhosis.

Conclusions:

  • MMP-3 gene polymorphism, specifically the 5A allele, may be associated with reduced platelet counts in HBV-related liver cirrhosis patients.
  • This finding suggests a potential role for MMP-3 polymorphism in the progression of liver cirrhosis.
  • Further research with larger cohorts is warranted to elucidate the precise role of MMP-3 gene polymorphism in liver fibrosis progression in CHB.

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