Who won the 2025 Nobel Prize for Physiology or Medicine?

Written by Tristan Free (Senior Editor)

Illustrations of the Nobel Laureates by Niklas Elmehed. © Nobel Prize Outreach.

The discovery and characterization of regulatory T cells has been selected as Nobel Prize winning research, with three researchers selected to share the prize. Mary Brunkow (Institute for Systems Biology, WA, USA), Fred Ramsdell (Sonoma Biotherapeutics, CA, USA) and Shimon Sakaguchi (Osaka University, Osaka, Japan) have been awarded the Nobel Prize in Physiology or Medicine 2025 for their discoveries concerning regulatory T cells (Tregs) and the genetic factors that underlie peripheral immune tolerance, which prevents the immune system from harming the body. Going against the flow In the ever-evolving arms race between pathogens and the immune system, some pathogens have evolved...

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