[Clinical immunological features and interferon therapy in chronic hepatitis C]

Area of Science:

• Hepatology and Immunology
• Viral Hepatitis Research
• Clinical Virology

Context:

• Chronic hepatitis C (HCV) presents diverse clinical and immunological profiles.
• Understanding immune dysregulation is crucial for managing HCV.
• Interferon-alpha therapy has been a cornerstone treatment for chronic hepatitis C.

Purpose:

• To report clinical and immunological findings in 74 chronic hepatitis C patients.
• To summarize experiences with interferon-alpha treatment in 31 patients.
• To present initial results of anti-HCV screening in blood donors.

Summary:

• Chronic hepatitis C patients exhibited significant immune alterations, including elevated immunoglobulins, anti-LSP antibodies, cryoglobulinemia, and decreased natural killer cell activity.
• Interferon-alpha treatment normalized alanine aminotransferase in 45% of patients, achieving sustained remission in 26% and HCV-RNA clearance in 40%.
• Predictors of favorable treatment response included female sex, shorter post-transfusion interval, absence of specific HLA antigens, and negative anti-HBc status.

Impact:

• Identifies key immunological markers and predictors for interferon-alpha treatment response in chronic hepatitis C.
• Provides insights into the prevalence of anti-HCV in blood donors and potential co-existing liver disease.
• Contributes to a better understanding of the immunopathogenesis and therapeutic strategies for chronic hepatitis C.