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Caspase activation is required for antiviral treatment response in chronic hepatitis C virus infection

Xandra Volkmann1, Markus Cornberg, Heiner Wedemeyer

  • 1Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.

Hepatology (Baltimore, Md.)
|May 27, 2006
PubMed

Insights

Caspase activity in hepatitis C virus (HCV) patients undergoing antiviral therapy can predict treatment success. Responding patients showed higher caspase activation, suggesting its role in virus elimination and treatment efficacy.

Area of Science:

  • Hepatology
  • Virology
  • Biochemistry

Background:

  • Chronic hepatitis C virus (HCV) infection affects millions globally.
  • Current antiviral therapies achieve sustained response in only 50% of genotype-1 patients.
  • Predictive markers for treatment outcomes in HCV are lacking.

Purpose of the Study:

  • To investigate the role of apoptotic caspase activation in HCV patients during antiviral therapy.
  • To determine if caspase activation can predict treatment response and virus elimination.

Main Methods:

  • Caspase activation was measured in serum from HCV patients using immunological and luminometric assays.
  • Patients were categorized into responding and non-responding groups based on antiviral therapy outcome.
  • Correlation between caspase activity and virus elimination was analyzed.

Main Results:

  • Responding patients exhibited significantly higher caspase activity compared to non-responders (P < .05).
  • Increased caspase activity strongly correlated with HCV virus elimination (r = 0.81).
  • Serum caspase activity predicted treatment outcome with 70% sensitivity and 82% specificity (AUC 0.845).

Conclusions:

  • Hepatic caspase activation appears to play a role in HCV clearance.
  • Serum caspase activity may serve as a predictive biomarker for antiviral therapy efficacy in HCV patients.

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