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  • A glyco-engineered monoclonal antibody directed against the human B-cell-specific cell surface antigen CD20, with potential antineoplastic and immunomodulating activities. Upon administration of glyco-engineered anti-CD20 monoclonal antibody CHO H01, the antibody specifically targets and binds to CD20. This induces antibody-dependent cell-mediated cytotoxicity (ADCC) against CD20-expressing B cells, which leads to B-cell apoptosis and the inhibition of tumor cell proliferation. In addition, CHO H01 inhibits CD20-mediated signaling which further induces apoptosis in and inhibits proliferation of CD20-expressing tumor cells. CD20, a non-glycosylated cell surface phosphoprotein that is exclusively expressed on B cells during most stages of B-cell development, is often overexpressed in B-cell malignancies. The Fc-glycans are homogenously engineered onto the antibody and increase ADCC, anti-tumor activity and the half-life of the antibody.
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