Progenitor exhausted PD-1+ T cells are cellular targets of immune checkpoint inhibition in atherosclerosis
Immune checkpoint inhibitors (ICIs), targeting checkpoint receptors such as programmed cell death protein 1 (PD-1), are associated with increased risk of cardiovascular events, but the underlying mechanisms remain poorly understood. Here we show that PD-1 + T cells from murine atherosclerotic aortas mainly display a progenitor exhausted phenotype (PD-1 intSlamf6 +Tim3 -), produce IFNγ in vivo, exh
