Immunological observations on patients with Wilson's disease

Area of Science:

• Immunology
• Hepatology
• Genetics

Background:

• Wilson's disease is a genetic disorder characterized by excessive copper accumulation.
• Copper accumulation leads to liver damage, neurological symptoms, and other organ dysfunction.
• The precise impact of Wilson's disease on the immune system is not fully understood.

Purpose of the Study:

• To investigate the humoral and cell-mediated immune responses in patients with Wilson's disease.
• To compare immune responses in Wilson's disease patients with those in patients with other forms of liver cirrhosis.
• To explore the potential roles of liver cirrhosis and copper ions in immune dysregulation.

Main Methods:

• Assessed immunoglobulin levels (IgG, IgM) and antibody titers against Kunin's CA antigen.
• Evaluated cell-mediated immunity through skin tests (DNCB, E. coli), lymphocyte transformation assays (Con A, PPD, Candida albicans, streptokinase), and macrophage migration inhibition factor production.
• Measured leukocyte bactericidal activity and the effect of copper ions on immune tests.

Main Results:

• Wilson's disease patients showed increased humoral immunity (higher IgG, IgM, CA antigen antibodies) and decreased cell-mediated immunity (lower skin test responses, lymphocyte transformation, MIF production).
• Similar, but less pronounced, immune alterations were observed in patients with non-Wilsonian liver cirrhosis.
• Leukocytes from Wilson's disease patients had impaired bactericidal activity, and copper ions inhibited some cell-mediated immunity tests.

Conclusions:

• Immunological abnormalities in Wilson's disease are likely multifactorial, involving liver cirrhosis and potentially direct effects of copper ions.
• Copper ions may directly impair cell-mediated immunity and leukocyte function.
• Further research is needed to elucidate the complex interplay between copper, liver disease, and immune dysregulation in Wilson's disease.