Introduction Programmed cell death 1 (PD-1) is a costimulatory molecule that belongs to the CD28/CTLA-4 family. PD-1 recruits and activates an activation signaling pathway such as protein tyrosine phosphatase by binding […]
Upadacitinib tartrate, a small-molecule selective inhibitor of JAK1, was recently approved in the U.S. as a treatment for adults with moderately to severely active rheumatoid arthritis (RA) and an inadequate response […]