R Recombinant
Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.
PD-1 (Pembrolizumab Biosimilar) Human mAb #60194
Supporting Data
REACTIVITY | H |
SENSITIVITY | Endogenous |
MW (kDa) | |
Source/Isotype | Human IgG4 kappa |
Species Cross-Reactivity Key:
- H-Human
Product Information
Product Description
PD-1 (Pembrolizumab Biosimilar) Human mAb is a biosimilar antibody for Pembrolizumab. Pembrolizumab is a human monoclonal antibody directed against PD-1 that is dessigned to function as a immune checkpoint inhibitor by disrupting the interaction between PD-L1 and PD-1.
Endotoxin | <0.1 EU/μg of protein |
Product Usage Information
This product is intended for research use only (RUO). Optimal dilutions/concentrations should be determined by the end user.
Formulation
Supplied in 1X PBS, BSA and Azide Free
Storage
Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance.
Specificity / Sensitivity
PD-1 (Pembrolizumab Biosimilar) Human mAb was confirmed to bind to its intended target protein PD-1 using flow cytometry.
Species Reactivity:
Human
Source / Purification
PD-1 (Pembrolizumab Biosimilar) Human mAb is produced at Cell Signaling Technology. Pembrolizumab is an antibody that is directed against the extracellular region of human PD-1.
Background
The programmed cell death 1 protein (PD-1, PDCD1, CD279) is a member of the CD28 family of immunoreceptors that regulate T cell activation and immune responses (1-3). The PD-1 protein contains an extracellular Ig V domain, a transmembrane domain, and a cytoplasmic tail that includes an immunoreceptor tyrosine-based inhibitory motif (ITIM) and an immunoreceptor tyrosine-based switch motif (ITSM). PD-1 is activated by the cell surface ligands PD-L1 and PD-L2 (4). Upon activation, PD-1 ITIM and ITSM phosphorylation leads to the recruitment of the protein tyrosine phosphatases SHP-1 and SHP-2, which suppress TCR signaling (5-7). In addition to activated T cells, PD-1 is expressed in activated B cells and monocytes, although its function in these cell types has not been fully characterized (8). The PD-1 pathway plays an important role in immune tolerance (3); however, research studies show that cancer cells often adopt this pathway to escape immune surveillance (9). Consequently, blockade of PD-1 and its ligands is proving to be a sound strategy for neoplastic intervention (10).
- Ishida, Y. et al. (1992) EMBO J 11, 3887-95.
- Shinohara, T. et al. (1994) Genomics 23, 704-6.
- Nishimura, H. et al. (1999) Immunity 11, 141-51.
- Freeman, G.J. et al. (2000) J Exp Med 192, 1027-34.
- Yokosuka, T. et al. (2012) J Exp Med 209, 1201-17.
- Sheppard, K.A. et al. (2004) FEBS Lett 574, 37-41.
- Chemnitz, J.M. et al. (2004) J Immunol 173, 945-54.
- Thibult, M.L. et al. (2013) Int Immunol 25, 129-37.
- Dong, H. et al. (2002) Nat Med 8, 793-800.
- Topalian, S.L. et al. (2012) Curr Opin Immunol 24, 207-12.
限制使用
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For Research Use Only. Not For Use In Diagnostic Procedures.
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