PD-L1–PD-1 interactions limit effector regulatory T cell populations at homeostasis and during infection

Joseph A. Perry, Lindsey A. Shallberg, Joseph T. Clark, Jodi A. Gullicksrud, Jonathan H. DeLong, Bonnie Douglas, Andrew Hart, Zachary Lanzar, Keenan M. O’Dea, Christoph Konradt, Jeongho Park, Juhi R. Kuchroo, Daniel Grubaugh, Arielle Glatman Zaretsky, Igor E. Brodsky, René de Waal Malefyt, David A. Christian, Arlene H. Sharpe, Christopher A. Hunter