Canada
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Ralph M. Steinman
Montreal, Canada
Archival Overview
Canadian immunologist at Rockefeller University who discovered dendritic cells, revolutionizing immunology and receiving the 2011 Nobel Prize in Physiology or Medicine posthumously.
Biographical Record
Ralph Marvin Steinman graduated from McGill University and earned his MD from Harvard Medical School. In 1970, he joined Zanvil Cohn's laboratory of cellular physiology and immunology at Rockefeller University in New York.
In 1973, Steinman discovered and named 'dendritic cells', proving they act as essential sentinels of the immune system that capture antigens and instruct T-cells to mount adaptive immune responses. The Nobel Committee awarded him the prize on October 3, 2011, unaware that he had passed away three days earlier, maintaining the award in a historic exception to Nobel rules.
Key Life Milestones
Discovery of Dendritic Cells
Identified and characterized dendritic cells in mouse spleen, unmasking the critical bridge between innate and adaptive immunity.
Posthumous Nobel Prize in Physiology or Medicine
Awarded the Nobel Prize for his discovery of dendritic cells and their role in adaptive immunity.
Memorial Guestbook & Tributes
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Final Resting Place
Perpetual MemorialHawthorne, United States