| Code | CSB-RA004940MB11HU |
| Size | US$9799 |
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This recombinant monoclonal antibody is developed as a research-grade biosimilar to TQB2928, targeting CD47, a transmembrane glycoprotein widely expressed on normal cells and overexpressed in various malignancies. CD47 functions as a "don't eat me" signal by binding to signal regulatory protein alpha (SIRPα) on macrophages and dendritic cells, thereby inhibiting phagocytosis and enabling immune evasion. Elevated CD47 expression has been documented in hematological malignancies including acute myeloid leukemia, non-Hodgkin lymphoma, and multiple myeloma, as well as solid tumors such as ovarian, colorectal, and gastric cancers, where it correlates with poor prognosis and tumor progression.
TQB2928 is a clinical-stage therapeutic antibody designed to block the CD47-SIRPα interaction, restoring macrophage-mediated phagocytosis of tumor cells while minimizing binding to red blood cells to reduce hematological toxicity. This biosimilar provides researchers with a valuable tool for investigating CD47-mediated immune checkpoint mechanisms, exploring combination immunotherapy strategies, and studying tumor immune evasion pathways in preclinical cancer models.
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