Lessons from mouse models of Graves' disease

Area of Science:

• Immunology
• Endocrinology
• Autoimmune Diseases

Background:

• Graves' disease (GD) is an autoimmune disorder characterized by anti-TSH receptor (TSHR) autoantibodies, leading to hyperthyroidism.
• Severe cases manifest with Graves' ophthalmopathy (GO), acropachy, and dermopathy.
• The TSHR is central to GD pathogenesis, making it a key target for disease modeling.

Purpose of the Study:

• To establish effective in vivo models for studying Graves' disease pathogenesis and evaluating treatments.
• To overcome immune tolerance to the conserved TSHR across species.

Main Methods:

• Immunization against the TSHR using strategies to break immune tolerance.
• Introduction of the human TSHR extracellular domain via plasmid or adenovirus vectors.
• Assessment of immunomodulatory therapies and disease prevention strategies.

Main Results:

• Successful development of animal models that replicate the full spectrum of Graves' disease, including autoimmune thyroid disease and orbitopathy.
• Current models are suitable for pathogenesis research and therapeutic intervention studies.
• Emerging research explores disease prevention through tolerance induction using TSHR-derived peptides.

Conclusions:

• Animal models expressing human TSHR are essential for advancing Graves' disease research.
• These models facilitate the study of disease mechanisms and the testing of novel therapeutic approaches.
• Future directions include developing tolerance-inducing strategies for disease prevention.