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    • 70. 发明授权
    • Cytokine preparation for immunotherapy
    • 免疫治疗的细胞因子制剂
    • US5563120A
    • 1996-10-08
    • US244401
    • 1994-08-23
    • Vladimir P. Kuznetsov
    • Vladimir P. Kuznetsov
    • A61K38/00A61K38/16A61P31/04A61P31/12A61P35/00C07K1/18C07K14/47C07K14/52C07K14/81C12N15/06A61K37/02A61K35/16C12P21/04C07K3/12
    • C07K14/47C07K14/52C07K14/8107A61K38/00
    • A cytokine composition is prepared for use in immunotherapy of various diseases. The composition is prepared by culturing leucocytes previously infected with a virus in a culture medium containing a transal composition isolated from plasma and a complex of proteinase inhibitors composition isolated from plasma, separating leucocytes from the medium, removing impurities from the medium, and recovering a cytokine composition containing the transal composition and the complex of protease inhibitors composition. The transal composition contains transferrin, albumin and a 40 kDa protein and the complex of protease inhibitors composition contains .alpha..sub.2 -macroglobulin, a 160 kDa protein, an 80-60 kDa protein and a 20 kDa protein. The transal composition is prepared by mixing plasma with chloroform and recovering an aqueous phase, precipitating gamma globulins from the aqueous phase with polyethylene glycol to recover another aqueous phase, passing this aqueous phase through an anion exchange column and recovering proteins that bind to the column. The complex of protease inhibitors composition is prepared using steps for preparing the transal composition except that additional steps are used of collecting eluate from the anion exchange column, passing the eluate through a Cu.sup.++ chelate anion exchange column and recovering proteins that bind to the column.
    • PCT No.PCT / CA93 / 00381 Sec。 371日期:1994年8月23日 102(e)日期1994年8月23日PCT提交1993年9月20日PCT公布。 出版物WO94 / 06820 日期1994年3月31日一种准备用于各种疾病的免疫治疗的细胞因子组成。 通过将培养含有从血浆中分离出的转运组合物的培养基和从血浆中分离的蛋白酶抑制剂组合物的复合物培养预先感染病毒的白细胞,从培养基中分离白细胞,从培养基中除去杂质,并回收细胞因子 含有transal组合物的组合物和蛋白酶抑制剂组合物的复合物。 transal组合物含有转铁蛋白,白蛋白和40kDa蛋白,蛋白酶抑制剂组合物的复合物含有α2-巨球蛋白,160kDa蛋白,80-60kDa蛋白和20kDa蛋白。 通过将等离子体与氯仿混合并回收水相,将聚氨基甲酸酯从水相中沉淀出来,以回收另一个水相,使该水相通过阴离子交换柱并回收与柱结合的蛋白质来制备转运组合物。 蛋白酶抑制剂组合物的复合物是使用制备转运组合物的步骤制备的,除了使用附加步骤从阴离子交换柱收集洗脱液,使洗脱液通过Cu ++螯合物阴离子交换柱并回收与柱结合的蛋白质。