Cosimo Commisso is a Canadian cell biologist and cancer researcher who has made significant advances in the field of cellular trafficking and cancer metabolism. [1] [2] [3] Among his most notable contributions are the discovery and study of how macropinocytosis supports tumor cell growth and survival by serving as an amino acid supply route in Ras-mutated cancers. [4] [5] [6] He is currently a Professor in the Cancer Metabolism and Microenvironment Program as well as Deputy Director of the Sanford Burnham Prebys Medical Discovery Institute NCI-designated Cancer Center in La Jolla, California, USA.