| Code | CSB-RA007765MB3HU |
| Size | US$9799 |
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This recombinant monoclonal antibody is designed as a research-grade biosimilar to Lumretuzumab, targeting ERBB3 (also known as HER3), a member of the epidermal growth factor receptor family. ERBB3 functions as a critical signaling molecule in cellular growth and differentiation pathways, primarily through heterodimerization with other ERBB family members, particularly ERBB2. Upon ligand binding by neuregulins, ERBB3 activates downstream PI3K/AKT signaling cascades that regulate cell survival and proliferation. Aberrant ERBB3 expression and signaling have been implicated in various malignancies, including breast, lung, colorectal, and gastric cancers, where it contributes to tumor progression and therapeutic resistance.
Lumretuzumab is a glycoengineered humanized IgG1 monoclonal antibody that blocks ligand-dependent ERBB3 activation and promotes antibody-dependent cellular cytotoxicity. This biosimilar antibody serves as a valuable research tool for investigating ERBB3-mediated signaling mechanisms, studying receptor interactions within the ERBB network, and exploring therapeutic strategies targeting HER3-driven oncogenic pathways in preclinical cancer models.
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