Process for preparing and purifying alpha-interferon
    4.
    发明授权
    Process for preparing and purifying alpha-interferon 失效
    制备和纯化α-干扰素的方法

    公开(公告)号:US5196323A

    公开(公告)日:1993-03-23

    申请号:US713618

    申请日:1991-06-12

    IPC分类号: A61K38/00 C07K14/56

    CPC分类号: C07K14/56 A61K38/00

    摘要: A process for the preparation and purification of recombinant Interferon-.alpha. is disclosed. The invention is directed to a process comprising the following steps: cultivating E. coli containing the interferon gene for a growth period during which not more than 5% methionine-interferon is formed; extracting and concentrating the expressed interferon; subjecting the preliminarily purified material to Tandem Chromatography, wherein the Tandem Chromatography comprises separation on a cellulose column followed by an anti-alpha-interferon monoclonal antibody affinity column; subjecting the thus purified material to isoelectric precipitation of impurities at about pH 4.0 to about pH 4.8; and purifying the interferon by chromatography on a high performance cation exchange column using a volatile buffer, wherein the purified interferon is non-immunogenic when administered parenterally to a human.

    摘要翻译: 公开了重组干扰素-α的制备和纯化方法。 本发明涉及一种包括以下步骤的方法:培养含有干扰素基因的大肠杆菌生长期,其中不超过5%的甲硫氨酸 - 干扰素形成; 提取和浓缩表达的干扰素; 将预先纯化的材料进行串联层析,其中串联色谱法包括在纤维素柱上分离,随后是抗α-干扰素单克隆抗体亲和柱; 使如此纯化的材料经受大约pH 4.0至约pH 4.8的杂质的等电沉淀; 并使用挥发性缓冲液在高性能阳离子交换柱上通过色谱法纯化干扰素,其中当肠胃外给予人时,纯化的干扰素是非免疫原性的。

    3,6-Bis-(heterocyclic aminoacyl-amino)-acridines and salts thereof
    6.
    发明授权
    3,6-Bis-(heterocyclic aminoacyl-amino)-acridines and salts thereof 失效
    3,6-双 - (杂环氨酰基 - 氨基) - 吖啶及其盐

    公开(公告)号:US4021551A

    公开(公告)日:1977-05-03

    申请号:US600434

    申请日:1975-07-30

    CPC分类号: C07D219/08 Y10S514/889

    摘要: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl,R.sub.2 and R.sub.3, together with each other and the nitrogen atom to which they are attached, form a saturated or unsaturated heterocyclic ring system which may optionally contain one or more additional heteroatoms, andA is lower alkylene or aryl-lower alkylene, and nontoxic, pharmacologically acceptable acid addition salts thereof; the compounds as well as their salts are useful as inducers of the formation of interferon.

    摘要翻译: 其中R 1是氢或甲基,R 2和R 3彼此以及与它们相连的氮原子形成饱和或不饱和杂环体系,其可以任选地含有一个或多个 另外的杂原子,和A是低级亚烷基或芳基 - 低级亚烷基,和无毒的药学上可接受的酸加成盐; 化合物及其盐可用作干扰素形成的诱导剂。

    Process for purifying annexines
    7.
    发明授权
    Process for purifying annexines 失效
    净化附件的方法

    公开(公告)号:US5258497A

    公开(公告)日:1993-11-02

    申请号:US552172

    申请日:1990-07-13

    CPC分类号: C07K14/4721

    摘要: The present invention relates to processes for purifying annexines. The overall process includes the steps of preparing a homogenized cell preparation and adjusting the pH to about 8.0 to 10.0, adding at least one bivalent cation, adding a phospholipid, washing the insoluble cell residue to remove the soluble constituents, and extracting the annexines from the cell residue with a chelating agent. This process initially promotes the adsorption of the annexines onto the insoluble cell residue or membrane of the host organism. The adsorption step makes it possible to eliminate unwanted soluble matter from the homogenized material by simple washing. Desorption is accomplished by using a chelating agent.

    摘要翻译: 本发明涉及净化附睾的方法。 整个方法包括以下步骤:制备均匀的细胞制剂并将pH调节至约8.0至10.0,加入至少一种二价阳离子,加入磷脂,洗涤不溶性细胞残渣以除去可溶性成分,并从 细胞残留物与螯合剂。 该过程最初促进附着物吸附到宿主生物体的不溶性细胞残留物或膜上。 吸附步骤可以通过简单的洗涤从均质材料中除去不需要的可溶物质。 通过使用螯合剂来完成解吸。