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    • 3. 发明申请
    • SOLUBLE PROTEINS FOR USE AS THERAPEUTICS
    • 可溶性蛋白用作治疗药物
    • WO2012172521A1
    • 2012-12-20
    • PCT/IB2012/053040
    • 2012-06-15
    • NOVARTIS AGHUBER, ThomasKOLBINGER, FrankWELZENBACH, Karl
    • HUBER, ThomasKOLBINGER, FrankWELZENBACH, Karl
    • C07K19/00A61K38/17C07K16/24C07K16/44C07K14/705
    • C07K16/2896C07K14/70596C07K16/241C07K16/2803C07K16/44C07K2317/35C07K2317/51C07K2317/515C07K2317/92C07K2319/32
    • The present invention relates to improved binding proteins, for use as a medicament, in particular for the prevention or treatment of autoimmune and inflammatory disorders, for example allergic asthma and inflammatory bowel diseases. The invention more specifically relates to a soluble protein, comprising a complex of two heterodimers, wherein each heterodimer essentially consists of: (i) a first single chain polypeptide comprising: (a) an antibody heavy chain sequence having VH, CH1, CH2, and CH3 regions; and (b) a monovalent region of a mammalian binding molecule fused to the VH region; and (ii) a second single chain polypeptide comprising: (c) an antibody light chain sequence having a VL and CL region; and (d) a monovalent region of a mammalian binding molecule fused to the VL region; characterised in that each pair of VH and VL CDR sequences has specificity for an antigen, such that the total valency of said soluble protein is six. The invention further relates to soluble SIRPa-binding antibody-like proteins as shown in Figure 1.
    • 本发明涉及改进的结合蛋白,用作药物,特别是用于预防或治疗自身免疫性和炎症性疾病,例如过敏性哮喘和炎症性肠病。 本发明更具体地涉及包含两个异二聚体复合物的可溶性蛋白质,其中每个异二聚体基本上由以下组成:(i)第一单链多肽,其包含:(a)具有VH,CH1,CH2和 CH3区; 和(b)与VH区融合的哺乳动物结合分子的单价区域; 和(ii)第二单链多肽,其包含:(c)具有VL和CL区的抗体轻链序列; 和(d)与VL区融合的哺乳动物结合分子的单价区域; 其特征在于每对VH和VL CDR序列对抗原具有特异性,使得所述可溶性蛋白的总价为6。 本发明还涉及如图1所示的可溶性SIRPA结合抗体样蛋白。