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Context
- Mary E Brunkow, Fred Ramsdell, and Shimon Sakaguchi have been honoured with the Nobel prize for Physiology or Medicine for their work on the human immune system.
More in News
- Also, 3 US-based scientists — John Clarke, Michel Devoret, and John Martinis — have been awarded the 2025 Nobel Prize in Physics for their discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.
About Nobel Prize
- The Nobel Prizes, founded in 1901 in the will of Alfred Nobel, have honoured excellence in science, literature, and peace with economics added later.
- Physics — the first category listed in Nobel’s will — remains among the most prestigious.
What is the Discovery Related to the Human Immune System?
| Discovery | Scientist(s) | Significance |
| Existence of Regulatory T cells (Tregs) | Shimon Sakaguchi |
|
| FOXP3 gene | Mary Brunkow & Fred Ramsdell |
|
| Integration of both findings | All three jointly | Established how the immune system maintains balance — attacking invaders but tolerating self-cells. |

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