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James Till, Ernest McCulloch and the discovery of stem cells

James Till in 2018.
James Till in 2018. Prof James E Till UofT Apr18 · Nichefinder · Photo source · Photo licence: CC BY-SA 4.0. Resized for display; item previews may be cropped. The image remains under the licence shown.
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In 1961 James Till and Ernest McCulloch, scientists at the Ontario Cancer Institute in Toronto, reported cautious findings they called “spleen colony-forming units.” In later years they and their collaborators established that these were stem cells and explained their properties, setting the stage for all later stem-cell research.

Scope & context

The discovery as described by the University of Toronto.

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