2 result(s) for 'PDL1'
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Antigen BackgroundProgrammed death-ligand 1 (PD-L1), CD274 or B7 Homolog 1(B7-H1) is a protein encoded by the CD274 gene. When bound to its ligands, PD-1 and B7.1, it plays an immunosuppressive role by inhibiting T-cell activity. Overexpression of PD-L1 by cancer cells may enable them to evade the host immune response, conferring a growth advantage to such tumours. PD-L1 expression levels detected by immunohistochemistry can therefore be of progn...
Antigen BackgroundPD-1 (Programmed Death 1) is a 55KDa Type I transmembrane cell surface receptor which is expressed by T-cells during activation. It is also upregulated in B-cells, dendritic cells, natural killer cells and some myeloid cells, suggesting a broad role for PD1 in immune regulation. PD-1 interacts with at least two ligands: PD-L1 and PD-L2. PD-1/PD-L1 interaction is important in many Tcell functions including acute and chronic infla...