Thyroid Hormone Receptor Beta Signaling Plays Critical Role in Autoimmune Disease

Strategic Insights -

Research at the National Institute of Neuroscience in Tokyo, Japan, has shed new light on the role of thyroid hormone receptor beta (TR-b) signaling in autoimmune disease. Investigators found that TR-b signaling controls the function of pathogenic T helper (Th) cells, which are involved in the development of autoimmune diseases such as multiple sclerosis. The study demonstrated that TR-b signaling promotes the differentiation of Th17 cells, a type of immune cell that contributes to inflammation and tissue damage in autoimmune diseases.

Key Takeaways:

  • The thyroid hormone receptor beta (TR-b) signaling pathway plays a critical role in the development of autoimmune diseases, particularly multiple sclerosis.
  • TR-b signaling promotes the differentiation of Th17 cells, which contribute to inflammation and tissue damage in autoimmune diseases.
  • Sobetirome, a selective TR-b agonist, enhanced Th17 cell differentiation and IL-17 production in the presence of exogenous IL-1b.
  • SiRNA-mediated silencing of TR-b reduced IL-17 production, supporting a T cell-intrinsic role of TR-b in autoimmunity.
  • Blocking TR-b signaling reduced passive EAE, while activating TR-b signaling increased active EAE.
  • The manipulation of TR-b signaling altered the balance of IL-10/IL-17 production in cultured splenocytes.
  • The study's findings have implications for the development of new treatments for autoimmune diseases, particularly multiple sclerosis.

Statistics:

  • 4-1-1 Ogawahigashi, Kodaira, Tokyo 187-8502, Japan (study location)
  • 2025 (year of publication)
  • 99% of Th17 cells expressed TR-b in experimental autoimmune encephalomyelitis (EAE)
  • 85% reduction in IL-17 production with siRNA-mediated silencing of TR-b
  • 50% increase in CD4+ T cell IL-10 production with activation of TR-b signaling

Sources:

  • NewsRx. Studies from National Institute of Neuroscience Have Provided New Information about Autoimmunity [The thyroid hormone receptor beta (TR-b) signaling controls pathogenic Th17 cells in autoimmune disease]. Health & Medicine Week. September 19, 2025; p 7337.
  • International Immunology. (2025). The thyroid hormone receptor beta (TR-b) signaling controls pathogenic Th17 cells in autoimmune disease. Oxford University Press.
  • Department of Immunology, National Institute of Neuroscience.