They discovered how the immune system is kept in check

They discovered how the immune system is kept in check

The bodys powerful immune system must be regulated, or it may attack our own organs. Mary E. Brunkow, Fred Ramsdell and Shimon Sakaguchi are awarded the Nobel Prize in Physiology or Medicine 2025 for their groundbreaking discoveries concerningperipheral immune tolerancethat prevents the immune system from harming the body.

https://www.nobelprize.org/prizes/medicine/2025/press-release/