Alloantigen-specific type 1 regulatory T cells suppress through CTLA-4 and PD-1 pathways and persist long-term in patients. - Chen PP; Cepika AM; Agarwal-Hashmi R; Saini G; Uyeda MJ; Louis DM; Cieniewicz B; Narula M; Amaya Hernandez LC; Harre N; Xu L; Thomas BC; et al. (Science translational medicine, 2021)