COMPOSITIONS AND METHODS RELATING TO UNIVERSAL GLYCOFORMS FOR ENHANCED ANTIBODY EFFICACY

    公开(公告)号:CA2950423A1

    公开(公告)日:2015-12-03

    申请号:CA2950423

    申请日:2015-05-27

    Abstract: The present disclosure relates to glycoproteins, particularly monoclonal antibodies, comprising a glycoengineered Fc region, wherein said Fc region comprises an optimized N-glycan having the structure of Sia2(a2-6)Gal2GlcNAc2Man3GlcNAc2. The glycoengineered Fc region binds Fc?RIIA or Fc?RIIIA with a greater affinity, relative to comparable monoclonal antibodies comprising the wild-type Fc region. The monoclonal antibodies of the invention are particularly useful in preventing, treating, or ameliorating one or more symptoms associated with a disease, disorder, or infection where an enhanced efficacy of effector cell function (e.g., ADCC) mediated by Fc?R is desired, e.g., cancer, autoimmune, infectious disease, and in enhancing the therapeutic efficacy of therapeutic antibodies the effect of which is mediated by ADCC.

    GLOBO H AND RELATED ANTI-CANCER VACCINES WITH NOVEL GLYCOLIPID ADJUVANTS

    公开(公告)号:AU2014201215A1

    公开(公告)日:2014-04-03

    申请号:AU2014201215

    申请日:2014-03-05

    Abstract: The present invention provides for an immunogenic composition comprising (a) a glycan, such as Globo H, stage-specific embryonic antigen-3 (SSEA-3) or SSEA-4, conjugated to a carrier protein through a linker; (b) an adjuvant comprising a glycolipid, such as a-galactosyl-ceramide adjuvant, wherein the composition induces an immune response, such as a higher relative level of IgG isotype antibodies compared to IgM isotype antibodies, or neutralising antibodies against at least one antigen selected from the group consisting of Globo H, Gb4, SSEA-3, and SSEA-4. Uses of the immunogenic composition for treating or inhibiting tumour growth are also provided.

    LARGE SCALE ENZYMATIC SYNTHESIS OF OLIGOSACCHARIDES

    公开(公告)号:CA3129035A1

    公开(公告)日:2014-02-27

    申请号:CA3129035

    申请日:2013-08-20

    Abstract: A novel UDP-Gal regeneration process and its combined use with a galactosyltransferase to add galactose to a suitable acceptor substrate. Also described herein are synthetic methods for generating Globo-series oligosaccharides in large scale, wherein the methods may involve the combination of a glycosyltransferase reaction and a nucleotide sugar regeneration process.

    Globo H and related anti-cancer vaccines with novel glycolipid adjuvants

    公开(公告)号:AU2009269127B2

    公开(公告)日:2013-12-05

    申请号:AU2009269127

    申请日:2009-08-06

    Abstract: Immunogenic compositions, cancer vaccines and methods for treating cancer are provided. Compositions comprising: (a) a glycan such as Globo H or an immunogenic fragment thereof, wherein the glycan is conjugated with a carrier protein by a linker such as para-nitrophenyl; and (b) an adjuvant comprising glycolipid capable of binding CDId on a dendritic cell, such as an α-galactosyl-ceramide derivative, wherein the immunogenic composition induces an immune response that induces a higher relative level of IgG isotype antibodies as compared to IgM isotype antibodies, are provided. Immunogenic compositions comprising the carrier protein diphtheria toxin cross-reacting material 197 (DT-CRM 197) and the adjuvant C34 are provided. Antibodies generated by immunogenic compositions disclosed herein further neutralize at least one of the antigens Globo H, stage-specific embryonic antigen-3 (SSEA-3) and stage-specific embryonic antigen-4 (SSEA-4). Therapeutics against breast cancer stem cells comprising immunogenic compositions comprising Globo H, SSEA-3 or SSEA-4 conjugated with DT-CRM 197.

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