AHA66 aliansi Cancer cells have an insatiable appetite for energy as they multiply more rapidly than normal cells. Greedy cancer cells hijack various cellular functions to find and exploit energy and other resources, including a group of enzymes that help normal cells maintain a balance of energy. These enzymes, called creatine kinases (CK), allow cells to transport energy produced at the mitochondria to where it is needed throughout the cell. Studies of breast cancer cells have highlighted the importance of a type of CK called ubiquitous mitochondrial creatine kinase (uMtCK).