[Autoantibodies in lepromatous leprosy]

Area of Science:

• Immunology
• Rheumatology
• Infectious Diseases

Context:

• Leprosy, a chronic infectious disease, involves complex immune responses.
• Autoimmunity can occur in infectious diseases, but its role in leprosy is not fully understood.
• Previous studies have explored autoantibodies in various autoimmune conditions.

Purpose:

• To investigate the presence of autoantibodies and immunoglobulins in Turkish patients with lepromatous and borderline lepromatous leprosy.
• To compare autoantibody profiles in leprosy patients with healthy volunteers and patients suffering from systemic lupus erythematosus and primary biliary cirrhosis.

Summary:

• Eighty-four Turkish leprosy patients were assessed for antibodies against various tissue components and immunoglobulins.
• No elevated autoantibodies to smooth muscle cells, nuclei, mitochondria, striated muscle, thyroid microsomes, or thyroglobulin were found.
• A significant prevalence of rheumatoid factor and circulating immune complexes was observed in the leprosy cohort.

Impact:

• The findings indicate a distinct immunological profile in lepromatous leprosy, characterized by rheumatoid factor and immune complex formation.
• This research contributes to understanding the immunopathogenesis of leprosy and its potential overlap with autoimmune phenomena.
• Results may guide future diagnostic and therapeutic strategies targeting immune dysregulation in leprosy.