ANTI-CD20 GLYCOANTIBODIES AND USES THEREOF

    公开(公告)号:US20210332146A1

    公开(公告)日:2021-10-28

    申请号:US17211619

    申请日:2021-03-24

    Abstract: The present disclosure relates to a novel class of anti-CD20 monoclonal antibodies comprising a homogeneous population of anti-CD20 IgG molecules having the same N-glycan on each of Fc. The antibodies of the invention can be produced from anti-CD20 monoclonal antibodies by Fc glycoengineering. Importantly, the antibodies of the invention have improved therapeutic values with increased ADCC activity and increased Fc receptor binding affinity compared to the corresponding monoclonal antibodies that have not been glycoengineered.

    METHODS FOR MODIFYING HUMAN ANTIBODIES BY GLYCAN ENGINEERING

    公开(公告)号:US20190194303A1

    公开(公告)日:2019-06-27

    申请号:US16150164

    申请日:2018-10-02

    Abstract: Methods for making modified Fc regions of antibodies and antibody fragments, both human and humanized, and having enhanced stability and efficacy, are provided. Antibodies comprising Fc regions with core fucose residues removed, and attached to oligosaccharides comprising terminal sialyl residues, are provided. Antibodies comprising homogeneous glycosylation of Fc regions with specific oligosaccharides are provided. Fc regions conjugated with homogeneous glycoforms of monosaccharides and trisaccharides, are provided. Methods of preparing human antibodies with modified Fc using glycan engineering, are provided.

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