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    • 101. 发明申请
    • ANTIALLERGIC AGENT
    • 抗真菌剂
    • WO1994003598A1
    • 1994-02-17
    • PCT/JP1993001085
    • 1993-08-03
    • THE GREEN CROSS CORPORATIONRA, Chisei
    • THE GREEN CROSS CORPORATIONNAITO, KojiHIRAMA, MinoruOKUMURA, Ko
    • C12N15/12
    • A61K38/1709C07K14/47C07K14/70535Y10S424/805Y10S424/81Y10S514/885
    • An antiallergic agent containing an active ingredient comprising a peptide capable of combining with human IgE, more specifically the (alpha)-chain of a high-affinity immunoglobulin E receptor or a soluble fragment of the (alpha)-chain of a high-affinity immunoglobulin E receptor capable of combining with human IgE; an animal cell (1) transformed with a plasmid containing, integrated thereinto, both of sFc(epsilon)RI(alpha) having, added to the upstream region thereof, a promoter capable of controlling the expression in an animal cell and DHFR having, added thereto, a UK promoter; an animal cell (2) transformed with both of a plasmid containing, carried thereon, a DNA coding for an sFc(epsilon)RI(alpha) gene having, added to the upstream region thereof, a promoter capable of controlling the expression in an animal cell and another plasmid containing, carried thereon, a DNA coding for DHFR having, added to the upstream region thereof, a UK promoter; and a process for mass-producing sFc(epsilon)RI(alpha) by culturing the animal cell (1) or (2). The invention can provide a clinically useful antiallergic agent which shuts off allergic reaction in its origin.
    • 含有活性成分的抗过敏剂包含能够与人IgE结合的肽,更具体地说是高亲和力免疫球蛋白E受体的(α)链或高亲和力免疫球蛋白(α)链的可溶性片段 E受体能与人IgE结合; 用含有其中整合有sFc(ε)RI(α)的质粒转化的动物细胞(1),其具有添加到其上游区域的能够控制动物细胞中的表达的启动子和具有添加的DHFR 英国推动者; 用含有载体​​上载有编码sFc(ε)RI(α)基因的DNA的质粒转化的动物细胞(2),其具有加入其上游区域的能够控制动物表达的启动子 细胞和另外一种质粒,其携带有编码DHFR的DNA,其上游区域加入英国启动子; 以及通过培养动物细胞(1)或(2)来大规模生产sFc(ε)RI(α)的方法。 本发明可以提供临床有用的抗过敏剂,其在其起源处关闭过敏反应。