Description
Protocol
Available protocols: ELISA+
Specificity / Sensitivity
The FastScan™ Total PD-L1 ELISA Kit detects endogenous levels of PD-L1 as shown in Figure 1. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
Species Reactivity: Mouse
Background
Programmed cell death 1 ligand 1 (PD-L1, B7-H1, CD274) is a member of the B7 family of cell surface ligands that regulate T cell activation and immune responses. The PD-L1 ligand binds the PD-1 transmembrane receptor and inhibits T cell activation. PD-L1 was discovered following a search for novel B7 protein homologs and was later shown to be expressed by antigen presenting cells, activated T cells, and tissues including placenta, heart, and lung (1-3). Similar in structure to related B7 family members, PD-L1 protein contains extracellular IgV and IgC domains and a short, cytoplasmic region. Research studies demonstrate that PD-L1 is expressed in several tumor types, including melanoma, ovary, colon, lung, breast, and renal cell carcinomas (4-6). Expression of PD-L1 in cancer is associated with tumor-infiltrating lymphocytes, which mediate PD-L1 expression through the release of interferon gamma (7). Additional research links PD-L1 expression to cancers associated with viral infections (8,9).
Alternate Names
A530045L16Rik; B7 homolog 1; B7-H1; B7h1; Cd274; CD274 antigen; OTTMUSP00000015826; PD-; PD-L1; PD1L1; PDCD1 ligand 1; Pdcd1l; Pdcd1l1; Pdcd1lg1; Pdl1; Programmed cell death 1 ligand 1; Programmed death ligand 1
