Tobias C. Walther is a member and the chair of the cell biology program at Sloan Kettering Institute in New York City and a professor at Weill Cornell School of Medicine. He has been a Howard Hughes Medical Institute investigator since 2015. His primary responsibilities are to provide leadership in research and teaching in the scientific fields of metabolism, membrane biology and lipids.
Walther's laboratory research seeks to understand the mechanisms that regulate lipid metabolism, lipid storage, and lipid function in membranes or as signaling molecules. Walther's research is focused on the mechanisms by which cells regulate their lipid content and the impact of intracellular lipids on cellular functioning. The laboratory also investigates lipid metabolism in human pathologies, such as cancer and neurodegenerative disease.