B7-H1 / CD274 / PD-L1抗体

B7-H1 / CD274 / PD-L1抗体产品信息

免疫原 :
Recombinant Human B7-H1 / CD274 / PD-L1 protein (Catalog#10084-H08H)
Antibody Type : Rabbit Polyclonal Antibody ( Antibody Purification Platform )
抗体宿主 :
Rabbit IgG
缓冲液 : 0.2 μm filtered solution in PBS, 5% trehalose may be added in some batches. Please read the hardcopy of COA or contact our customer service to confirm the formulation.
制备方法 :
Produced in rabbits immunized with purified, human cell-derived, recombinant Human B7-H1 / CD274 / PD-L1 (rh B7-H1; Catalog#10084-H08H; NP_054862.1; Met 1-Thr 239). B7-H1 specific IgG was purified by Human B7-H1 affinity chromatography.
B7-H1 / CD274 / PD-L1抗体 Background
Human B7 homolog 1 (B7-H1), also called programmed death ligand 1 (PD-L1), is a member of the growing B7 family of immune molecules and is involved in the regulation of cellular and humoral immune responses. B7-H1 is a cell surface immunoglobulin superfamily with two Ig-like domains within the extracellular region and a short cytoplasmic domain. This protein is broadly expressed in the majority of peripheral tissues as well as hematopoietic cells. Interaction between B7-H1 and its receptors belonging to the CD28 family of molecules provide both stimulatory and inhibitory signals in regulating T cell activation and tolerance. As a costimulator, B7-H1 induces T-cell proliferation and preferentially the production of interleukin 10 and interferon gamma. Conversely, by binding to programmed death 1 receptors (PD-1) on activated T-cells and B-cells, B7-H1 may inhibit ongoing T-cell responses by inducing apoptosis and arresting cell-cycle progression. Accordingly, B7-H1 leads to growth of immunogenic tumor growth by increasing apoptosis of antigen specific T cells and may contribute to immune evasion by cancers. B7-H1 thus is regarded as promising therapeutic target for human autoimmune disease and malignant cancers.
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