JunB regulates homeostasis and suppressive functions of effector regulatory T cells

Abstract

Regulatory T (Treg) cells need to be differentiated into effector Treg (eTreg), with the transcription factor IRF4 implicated during this process. Here the authors show that an AP-1 family transcription factor, JunB, is expressed in eTreg to promote the IRF4 transcription program, and regulate eTreg homeostasis and function.