Recombinant CHO-K1 cells constitutively expressing human PD-L1 (Programmed Cell Death 1 Ligand 1, CD274, B7 homolog 1 (B7- H1), GenBank accession # NM_014143) an engineered T cell receptor (TCR) activator.
Mycoplasma testing: The cell line has been screened using the PCR-based VenorGeM Mycoplasma Detection kit(Sigma-Aldrich) to confirm the absence of Mycoplasma species.
Host Species: hamster
Background
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-1ligands are found on most cancers, and PD-1:PD-L1/2 interaction inhibits T cell activity andallows cancer cells to escape immune surveillance. The PD-1:PD-L1/2 pathway is also involvedin regulating autoimmune responses, making these proteins promising therapeutic targets for anumber of cancers, as well as multiple sclerosis, arthritis, lupus, and type I diabetes.
Application
Screen for activators or inhibitors of PD-1 signaling in a cellular context , screen PD-L1 antibodies for binding affinity Characterize the biological activity of PD-1 interactions with PD-L1