Autoimmunity: from black water fever to regulatory function.

Area of Science:

• Immunology
• Pathogenesis of Autoimmune Diseases

Background:

• Autoimmunity was initially disbelieved, termed "horror autotoxicus".
• Recognition of autoimmunity grew around WWI, linking it to diseases like rheumatoid arthritis.
• Early treatments like Compound E were developed, with later understanding of adverse effects.

Discussion:

• The "modern" era of autoimmunity, starting around 1945, saw key discoveries including anti-globulin reactions in hemolytic anemia and the lupus erythematosus (LE) cell.
• Further advancements in the 1950s included descriptions of autoimmune thyroid disease and idiopathic thrombocytopenia, solidifying the concept of self-attack.

Key Insights:

• The discovery of rheumatoid factor and the LE cell provided crucial diagnostic markers and insights into autoimmune processes.
• Understanding has expanded to encompass complex mechanisms like apoptosis, signaling pathway dysregulation, and the role of regulatory T cell subsets.

Outlook:

• Despite significant advancements, the complete elucidation of autoimmune disease pathogenesis remains an ongoing and complex challenge in medical research.
• Future research will likely focus on refining our understanding of these intricate mechanisms to develop more targeted and effective therapies.