Process for the extraction and purification of human recombinant gamma interferon
    8.
    发明公开
    Process for the extraction and purification of human recombinant gamma interferon 失效
    Verfahren zur Extraktion und Reinigung von menschlichem rekombinantem gamma-Interferon。

    公开(公告)号:EP0468393A1

    公开(公告)日:1992-01-29

    申请号:EP91112215.8

    申请日:1991-07-22

    申请人: SCLAVO S.p.A.

    CPC分类号: C07K14/57 A61K38/00

    摘要: An extraction and purification process for human gamma interferon (HuIFN-gamma) from recombinant host cells producing the same in insoluble form is described, which comprises suspending the cells in a buffer solution having pH from 6.0 to 8.5, optionally complemented with an osmoprotector; disrupting the cells in conditions which do not activate the endocellular proteases; separating and solubilizing the pellet containing the insoluble HuIFN-gamma by extraction with phosphate buffer having pH comprised between 6.5 and 8.5 and finally purifying the solubilized HuIFN-gamma by one or more chromatographic techniques. Such a process allows non-degraded HuIFN-gamma to be obtained, with a biological activity and chemical-physical properties unaffected vis-a-vis the native product and in high yield and purity.

    摘要翻译: 描述了从产生不溶形式的重组宿主细胞的人γ-干扰素(HuIFN-γ)的提取和纯化方法,其包括将细胞悬浮在pH 6.0至8.5的缓冲溶液中,任选地与渗透保护剂互补; 在不激活内细胞蛋白酶的条件下破坏细胞; 通过用pH为6.5-8.5的磷酸盐缓冲液萃取,通过用一种或多种色谱技术纯化溶解的HuIFN-γ,分离并溶解含有不溶性HuIFN-γ的沉淀物。 这种方法允许获得未降解的HuIFN-γ,其生物活性和化学物理性质不受天然产物的影响,并且以高产率和纯度。