Particle.news

Download on the App Store

Brunkow, Ramsdell and Sakaguchi Win 2025 Nobel Prize in Medicine for Immune Tolerance

Work on regulatory T cells—governed by Foxp3—underpins therapies now advancing into clinical trials.

Overview

  • Karolinska Institutet honored the trio for discoveries explaining peripheral immune tolerance that prevents the body from attacking its own tissues.
  • The research identified regulatory T cells and linked their development to the gene Foxp3, revealing a key safeguard against autoimmunity.
  • Several treatments derived from these findings are in clinical testing for cancer, autoimmune disorders and complications after transplants.
  • The prize is worth 11 million Swedish kronor to be shared, with formal awards scheduled for 10 December in Stockholm and Oslo.
  • At the announcement, officials reached only Japan-based Shimon Sakaguchi by phone, while the two US laureates were initially unavailable due to the early hour.