Nimotuzumab is a humanizedIgG1monoclonal antibody targetingEGFRwith a K_Dof 0.21 nM. Nimotuzumab is directed against the extracellular domain of theEGFRblocking the binding to its ligands. Nimotuzumab, a strong antitumor drug, is cytolytic on target tumors by its capacity to cause antibody dependent cell mediated cytotoxicity (ADCC) and complement dependent cytotoxicity (CDC)^[1][2].

Nimotuzumab (10 μg/mL; 24 hours) induces significant downregulation of CD16 on NK cells^[1].
Nimotuzumab (10 μg/mL; 48 hours) induces the upregulation of PD-L1 molecule on DCs when co-cultured with the NK: DC: HNSCC cells^[1].
The intrinsic properties of Nimotuzumab requires bivalent binding (i.e., binding with both antibody arms to two targets simultaneously) for stable attachment to cellular surface, which leads to Nimotuzumab selectively binding to cells that express moderate to high EGFR levels^[2].

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