Foxp3(+) Treg cells express transcription factors normally expressed by specific T helper cells at sites of inflammation. In this issue of Immunity, Koch et al. (2012) and Hall et al. (2012) demonstrate that IFN-γ and IL-27 distinctly induces T-bet(+) Treg cells via STAT-1 transcription factor activation.
Copyright © 2012 Elsevier Inc. All rights reserved.