PD-L1 / TCR Activator Mammalian Ex... BPS Bioscience

PD-L1 / TCR Activator Mammalian Expression Kit

The recombinant expression vectors are designed to express human engineered T cell receptor (TCR) activator and human PD-L1 (GenBank Accession #NM_014143) in mammalian cells. The transfected cells can be used in conjunction with PD-1/NFAT Reporter/Jurkat T cells (BPS #60535) to study the interactions of PD-1 with PD-L1 ligand in a cellular context and screen for modulators of this signaling pathway._x000D_In this assay, PD-1/NFAT Reporter/Jurkat T cells are used as effector cells; HEK293 cells overexpressing PD-L1 (or PD-L2) and an engineered T cell receptor (TCR) activator are used as target cells. When these two cells are co-cultivated, TCR complexes on effector cells are activated by TCR activator on target cells, resulting in expression of the NFAT luciferase reporter. However, PD1 and PD-L1 (or PD-L2) ligation prevents TCR activation and suppresses the NFAT-responsive luciferase activity. This inhibition can be specifically reversed by anti-PD1 or anti-PD-L1 antibodies. PD1/PD-L1 neutralizing antibodies block PD1:PD-L1 interaction and promote T cell activation, resulting in reactivation of the NFAT responsive luciferase reporter.

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Număr Catalog 421-60610

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