| Code | CSB-RA619964MB2HU |
| Size | US$9799 |
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This recombinant monoclonal antibody is developed as a research-grade biosimilar to pembrolizumab, targeting PDCD1 (Programmed Cell Death 1, also known as PD-1). PD-1 is an immune checkpoint receptor expressed primarily on activated T cells, B cells, and natural killer cells that plays a critical role in regulating immune responses and maintaining peripheral tolerance. Upon binding to its ligands PD-L1 and PD-L2, PD-1 delivers inhibitory signals that suppress T cell activation and effector functions, thereby preventing excessive immune responses and autoimmunity. The PD-1/PD-L1 axis is frequently exploited by tumors to evade immune surveillance, making it a pivotal target in cancer immunotherapy research.
Pembrolizumab is a humanized IgG4 anti-PD-1 monoclonal antibody. It blocks PD-1's interaction with ligands (PD-L1/PD-L2), thereby relieving the inhibition of T cells by the tumor microenvironment and restoring the anti-tumor immune function of T cells. Pembrolizumab has been widely approved for clinical treatment worldwide and is one of the "gold standard" drugs in tumor immunotherapy. This biosimilar antibody serves as a valuable research tool for investigating immune checkpoint mechanisms, tumor immunology, and T cell exhaustion pathways. It supports studies examining immune modulation in various cancer models and autoimmune disease contexts, facilitating the development of novel immunotherapeutic strategies.
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