Peter Medawar
Who was Peter Medawar?
Nobel laureate: Nobel Prize in Physiology or Medicine (1960)
Biographical data adapted from Wikipedia’s article on Peter Medawar (CC BY-SA 4.0).
Biography
Sir Peter Brian Medawar (1915-1987) was a British-Brazilian biologist whose groundbreaking research on immunological tolerance changed the field of organ transplantation. Born in Petrópolis, Brazil, to a Lebanese father and British mother, Medawar had dual citizenship from birth. He was educated at Marlborough College and Magdalen College, Oxford, where he developed his interest in zoology and experimental biology.
Medawar's most important contribution to science was his work on graft rejection and the discovery of acquired immune tolerance. Working with his doctoral student Leslie Brent and postdoctoral fellow Rupert E. Billingham, he showed that the immune system could be trained to accept foreign tissue under certain conditions. This research built on theoretical predictions made by Sir Frank Macfarlane Burnet and proved that immunological tolerance could be learned rather than purely innate. Their experiments with mice demonstrated that exposing them to foreign cells during early development could prevent later rejection of tissue grafts from the same donor.
The practical outcomes of Medawar's work went far beyond the lab. His discoveries formed the scientific foundation for modern organ transplantation, earning him the title 'father of transplantation.' In 1960, he shared the Nobel Prize in Physiology or Medicine with Burnet for their work on acquired immunological tolerance. This achievement was the result of years of careful research that changed how medicine understood the immune system.
During his career, Medawar held leading academic positions, serving as a professor of zoology at the University of Birmingham and University College London. He later became Director of the National Institute for Medical Research at Mill Hill, holding the position until a stroke partially disabled him. Beyond his scientific achievements, Medawar was famous for his writing and wit. He wrote several popular science books and essays that made complex biological ideas easy for everyone to understand. Fellow scientists Richard Dawkins and Stephen Jay Gould praised his writing, with Dawkins calling him 'the wittiest of all scientific writers.' Medawar died in London in 1987, leaving a legacy that continues to shape medical practice and scientific study.
Before Fame
Peter Medawar grew up when immunology was still a new area in biology. He went to Marlborough College and then studied at Magdalen College, Oxford, in the 1930s, when scientists had only a basic understanding of the immune system. Transplantation biology didn't really exist yet, as early attempts at tissue grafting often failed due to rejection, which wasn't well understood at the time.
Medawar became well-known in science during World War II while working on skin grafting problems for burn victims. This wartime experience helped him learn about the clinical issues of tissue rejection and made him interested in the biological reasons behind it. His move from working on immediate wartime medical problems to studying the basics of immunological tolerance marked a change from short-term needs to exploring ideas that would later change transplantation medicine.
Key Achievements
- Discovered the principle of acquired immunological tolerance, enabling modern organ transplantation
- Shared the 1960 Nobel Prize in Physiology or Medicine with Frank Macfarlane Burnet
- Established the scientific foundation for tissue and organ transplant procedures
- Authored influential popular science books that made immunology accessible to general audiences
- Served as Director of the National Institute for Medical Research at Mill Hill
Did You Know?
- 01.Medawar's interest in transplantation research was sparked by his wartime work helping treat Royal Air Force pilots who suffered severe burns during the Battle of Britain
- 02.He once described his own writing style as attempting to 'convey the sense of wonder and excitement that scientific discovery can bring'
- 03.Medawar's experiments involved creating chimeric mice by injecting cells from one strain into newborns of another strain, proving that tolerance could be artificially induced
- 04.Despite being born in Brazil, he never lost his British accent and was known for his distinctly English sense of humor in scientific lectures
- 05.His 1987 Michael Faraday Prize was awarded in the same year he died, representing one of the last major honors he received
Family & Personal Life
Awards & Honors
| Award | Year | Details |
|---|---|---|
| Nobel Prize in Physiology or Medicine | 1960 | for discovery of acquired immunological tolerance |
| Fellow of the Royal Society | — | — |
| Commander of the Order of the British Empire | — | — |
| Copley Medal | 1969 | — |
| Royal Medal | 1959 | — |
| Kalinga Prize | 1985 | — |
| EMBO Membership | — | — |
| Croonian Medal and Lecture | 1958 | — |
| Michael Faraday Prize | 1987 | — |
| Knight Bachelor | 1965 | — |
| Order of Merit | 1981 | — |
| honorary Fellow of the Royal College of Surgeons | 1967 | — |