# Shimon Sakaguchi

_Japanese immunologist and physician (1951-)_

Canonical: https://diginpl.com/people/shimon-sakaguchi
Last updated: 2026-11-01

> Shimon Sakaguchi (坂口 志文, Sakaguchi Shimon; born 19 January 1951) is a Japanese immunologist. He is a distinguished professor at Osaka University and a professor emeritus at Kyoto University.

## Quick facts

- **Born:** 19 January 1951 ([Wikidata](https://www.wikidata.org/wiki/Q17502433#P569))
- **Place of birth:** Nagahama ([Wikidata](https://www.wikidata.org/wiki/Q17502433#P19))
- **Citizenship:** Japan ([Wikidata](https://www.wikidata.org/wiki/Q17502433#P27))
- **Occupation:** physician; university teacher; immunologist; biologist ([Wikidata](https://www.wikidata.org/wiki/Q17502433#P106))
- **Education:** Shiga Prefectural Nagahama Kita High School; Kyoto University ([Wikidata](https://www.wikidata.org/wiki/Q17502433#P69))
- **Awards:** Canada Gairdner International Award; William B. Coley Award; Keio Medical Science Prize; Crafoord Prize; Paul Ehrlich and Ludwig Darmstaedter Prize; Robert Koch Prize; Clarivate Citation Laureates; Nobel Prize in Physiology or Medicine; Order of Culture; Medal with Purple Ribbon ([Wikidata](https://www.wikidata.org/wiki/Q17502433#P166))

## About

His work includes the discovery of regulatory T cells and describing their role in the immune system. In 2025, he was jointly awarded the Nobel Prize in Physiology or Medicine with Mary E. Brunkow and Fred Ramsdell.

## Questions

**When was Shimon Sakaguchi born?**  
Shimon Sakaguchi was born on 19 January 1951 in Nagahama.

**Where did Shimon Sakaguchi study?**  
Shimon Sakaguchi was educated at Shiga Prefectural Nagahama Kita High School, Kyoto University.

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## Sources

- [Wikipedia (English): Shimon Sakaguchi](https://en.wikipedia.org/wiki/Shimon_Sakaguchi) — [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)
- [Wikidata item Q17502433](https://www.wikidata.org/wiki/Q17502433) — [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/)
- [Image: Shimon Sakaguchi cropped 3 Shimon Sakaguchi 201711.jpg by 大臣官房人事課 (CC BY 4.0)](https://commons.wikimedia.org/wiki/File:Shimon_Sakaguchi_cropped_3_Shimon_Sakaguchi_201711.jpg)

## Licence and attribution

Text from the Wikipedia article Shimon Sakaguchi, licensed under CC BY-SA 4.0. This page's text is shared under the same licence. Facts from Wikidata (CC0). Image: Shimon Sakaguchi cropped 3 Shimon Sakaguchi 201711.jpg — 大臣官房人事課, CC BY 4.0.

## Cite this page

"Shimon Sakaguchi". DigiNepal. Last updated 1 November 2026. https://diginpl.com/people/shimon-sakaguchi. Retrieved 6 November 2026.