PDCD1 and Autoimmunity: The agonist was referred to as PD-1 agonist ImmTAAI (immune modulating monoclonal TCR against autoimmunity) and is able to bind pancreatic cells by recognizing target cell peptide-human leukocyte antigen complexes via a T cell receptor end while binding PD-1 on T cells via their recombinant PD-L1 end [110].