Article
Rose Johnstone
Rose Mamelak Johnstone, FRSC, biochemist (born 14 May 1928 in Lodz, Poland; died 3 July 2009 in Montreal, QC). Rose Johnstone is best known for her discovery of exosomes, a key development in the field of cell biology. These tiniest of structures originating in all cells of the human body are vehicles that transport proteins, lipids and RNA from one cell to another. A pioneer of women in science, Johnstone was the first woman to hold the Gilman Cheney Chair in Biochemistry and the first and only woman chair of the Department of Biochemistry in McGill University’s Faculty of Medicine.