13774214275
13774214275
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产品型号：S0B5271
更新时间：2025-08-07
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CD52 is a small glycoprotein consisting of 12 amino acids, anchored to the cell membrane via a glycosylphosphatidylinositol （GPI） anchor. It is widely expressed on the surface of various immune cells, including normal and malignant T and B lymphocytes, monocytes, and some epithelial cells. Although its exact biological function remains unclear, CD52 is believed to play roles in T-cell migration, activation, and immune regulation. Importantly, CD52 is the target of alemtuzumab, a humanized monoclonal antibody used to treat diseases like chronic lymphocytic leukemia （CLL） and multiple sclerosis. Alemtuzumab induces cell destruction through mechanisms such as antibody-dependent cellular cytotoxicity （ADCC） and complement-dependent cytotoxicity （CDC）. Recent studies also suggest that CD52 may have immunosuppressive effects by binding to the SIGLEC-10 receptor and inhibiting T-cell function.
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