TFRC and Autoimmunity: Remarkably, the T‐cell receptor repertoire of Tfr cells resembles that of Treg and differs from the repertoire of Tfh cells.40 This suggests, that Tfh cells promote humoral responses to nonself antigens, while Tfr cells inhibit the forming of autoantibody‐mediated autoimmunity and are also able to regulate nonantigen‐specific clones.