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Mary Brunkow *91
Medicine 2025

.001 Mary Brunkow *91

Other license. Photo by Alex Garland for ISB, from PAW

Nobel Prize Announcement

“The Nobel Assembly at the Karolinska Institutet has decided to award the 2025 Nobel Prize in Physiology or Medicine to Mary E. Brunkow, Fred Ramsdell and Shimon Sakagushi for their discoveries concerning peripheral immune tolerance.”

They understood how the immune system is kept in check.

The body’s powerful immune system must be regulated, or it may attack our own organs. Mary E. Brunkow, Fred Ramsdell and Shimon Sakaguchi made groundbreaking discoveries concerning peripheral immune tolerance that prevents the immune system from harming the body. Their discoveries have laid the foundation for a new field of research and spurred the development of new treatments, for example for cancer and autoimmune diseases.

© The Nobel Committee for Physiology or Medicine. Ill. Mattias Karlén

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Princeton Alumni Weekly