This recombinant monoclonal antibody is developed as a research-grade biosimilar to Adebrelimab, targeting CD274, also known as programmed death-ligand 1 (PD-L1). CD274 is a transmembrane protein that plays a critical role in immune checkpoint regulation by binding to PD-1 receptors on T cells, thereby suppressing adaptive immune responses. This interaction enables tumors to evade immune surveillance, making CD274 a key therapeutic target in cancer immunotherapy. Elevated CD274 expression is observed across various malignancies, including non-small cell lung cancer, hepatocellular carcinoma, and esophageal squamous cell carcinoma, where it correlates with immune evasion and poor prognosis.
Adebrelimab is a humanized IgG4 monoclonal antibody that blocks the PD-L1/PD-1 interaction, restoring anti-tumor T cell activity. This biosimilar provides researchers with a valuable tool for investigating immune checkpoint mechanisms, tumor microenvironment dynamics, and cancer immunology. It supports studies exploring PD-L1 blockade strategies, biomarker development, and resistance mechanisms in immuno-oncology research.
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