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    • 6. 发明申请
    • FCγRIIB-SPECIFIC ANTIBODIES AND METHODS OF USE THEREOF
    • FcγRIIB特异性抗体及其使用方法
    • WO2008019199A2
    • 2008-02-14
    • PCT/US2007/072153
    • 2007-06-26
    • MACROGENICS, INC.JOHNSON, Leslie, S.HUANG, LingGERENA, Robyn
    • JOHNSON, Leslie, S.HUANG, LingGERENA, Robyn
    • A61K39/395
    • C07K16/283A61K39/3955A61K45/06A61K2039/505C07K2317/34C07K2317/52C07K2317/565C07K2317/732C07K2317/92
    • The present invention relates to antibodies or fragments thereof that specifically bind FcγRIIB, particularly human FcγRIIB, with greater affinity than said antibodies or fragments thereof bind FcγRIIA, particularly human FcγRIIA. The present invention also provides the use of an anti-FcγRIIB antibody or an antigen-binding fragment thereof, as a single agent therapy for the treatment, prevention, management, or amelioration of a cancer, preferably a B-cell malignancy, particularly, B-cell chronic lymphocytic leukemia or non-Hodgkin's lymphoma, an autoimmune disorder, an inflammatory disorder, an IgE-mediated allergic disorder, or one or more symptoms thereof. The invention provides methods of enhancing the therapeutic effect of therapeutic antibodies by administering the antibodies of the invention to enhance the effector function of the therapeutic antibodies. The invention also provides methods of enhancing efficacy of a vaccine composition by administering the antibodies of the invention.
    • 本发明涉及以比所述抗体或其片段结合FcγRIIA,特别是人FcγRIIA更高的亲和力特异性结合FcγRIIB,特别是人FcγRIIB的抗体或其片段。 本发明还提供了抗-FcγRIIB抗体或其抗原结合片段作为用于治疗,预防,控制或改善癌症,优选B细胞恶性肿瘤,特别是B 细胞慢性淋巴细胞白血病或非霍奇金淋巴瘤,自身免疫病症,炎性病症,IgE介导的变应性病症或其一种或多种症状。 本发明提供了通过施用本发明的抗体来增强治疗性抗体的效应功能来增强治疗性抗体的治疗效果的方法。 本发明还提供了通过施用本发明的抗体来增强疫苗组合物功效的方法。