Regulatory T (TReg) cells are crucial for maintaining immune homeostasis in the body, with recent data showing that distinct TReg cell subsets become specialized to function in different tissues. Here, Liston and Gray highlight the need to regulate the number and function of the TReg cells themselves, and they describe the dynamic processes that achieve this homeostasis and functional specialization of TRegcell subsets.
- Adrian Liston
- Daniel H. D. Gray