Figure 3.
Nutrients are metabolized to small molecular weight compounds which increase tumoricidal activity of NK cells and induce the controlling properties of iTreg cells. The modulating effects of nutrients on the expression and function of iTreg cells are critical to prevent autoimmunity and allergy. When the gut epithelium is transformed by external stimuli including reactive oxygen species (ROS), pathogens, and inflammatory molecules, iTreg cells lose their stability and function. However, the role of these iTreg cells in tumor microenvironment remains unclear.