背景介绍 The binding of Programmed Cell Death Protein 1 (PD-1), a receptor expressed on activated Tcells, to its ligands, PD-L1 and PD-L2, negatively regulates immune responses. The PD-1 ligands are found on most cancers, and PD-1:PD-L1/2 interaction inhibits T cell activity and allows cancer cells to escape immune surveillance. The PD-1:PD-L1/2 pathway is also involved in regulating autoimmune responses, making these proteins promising therapeutic targets for a number of cancers, as well as multiple sclerosis, arthritis, lupus, and type I diabetes. 产品介绍 The recombinant expression vectors are designed to express human engineered T cell receptor (TCR) activator and woodchuck (groundhog, Marmota monax) PD-L1 (GenBank Accession #HQ403651) in mammalian cells. The transfected cells can be used in conjunction with Woodchuck PD-1/NFAT Reporter/Jurkat T cells (BPS #79456) to study the interactions of PD-1 with PD-L1 ligand in a cellular context and screen for modulators of this signaling pathway.