A dietary change could be a key to enhancing colon cancer treatment, a study finds. Cancer cells need nutrients to survive and grow. One of the most important nutrient sensing molecules in a cell is called mTORC1. Often called a master regulator of cell growth, it allows cells to sense different nutrients and thereby grow and proliferate. When nutrients are limited, cells dial down nutrient sensing cascade and turn off mTORC1. "In colon cancer, when you decrease the nutrients available in the tumors, the cells don't know what to do. Without the nutrients to grow, they undergo a kind of...