利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

34 条记录 (耗时 0.046 秒)

    Recombinant toxin fragments
    2.
    发明授权
    Recombinant toxin fragments 有权
    重组毒素片段

    公开(公告)号：US08012479B2

    公开(公告)日：2011-09-06

    申请号：US12399542

    申请日：2009-03-06

    申请人： Clifford Charles Shone ,  Conrad Padraig Quinn ,  Keith Alan Foster ,  John Chaddock ,  Philip Marks ,  J. Mark Sutton ,  Patrick Stancombe ,  Jonathan Wayne

    发明人： Clifford Charles Shone ,  Conrad Padraig Quinn ,  Keith Alan Foster ,  John Chaddock ,  Philip Marks ,  J. Mark Sutton ,  Patrick Stancombe ,  Jonathan Wayne

    IPC分类号： A61K39/00 ,  A61K39/38 ,  A61K39/08

    CPC分类号： C12N15/62 ,  A61K38/00 ,  A61K39/00 ,  A61K39/08 ,  A61K47/6415 ,  A61K47/646 ,  A61K2039/505 ,  A61K2039/53 ,  A61K2039/627 ,  C07K14/33 ,  C07K14/475 ,  C07K14/65 ,  C07K2319/00 ,  C07K2319/20 ,  C07K2319/23 ,  C07K2319/50 ,  C07K2319/55 ,  C07K2319/705 ,  C07K2319/75 ,  C12N9/52 ,  Y02A50/469 ,  Y10S530/825

    摘要： Antigenic compositions are provided comprising a single chain polypeptide comprising first and second domains, wherein said first domain is a clostridial neurotoxin light chain or a fragment or a variant thereof and is capable of cleaving one or more vesicle or plasma membrane associated proteins essential to exocytosis; and said second domain is a clostridial neurotoxin heavy chain HN portion or a fragment or a variant thereof, wherein said second domain is capable of (i) translocating the polypeptide into a cell or (ii) increasing the solubility of the polypeptide compared to the solubility of the first domain on its own or (iii) both translocating the polypeptide into a cell and increasing the solubility of the polypeptide compared to the solubility of the first domain on its own; and wherein the second domain lacks a functional C-terminal part of a clostridial neurotoxin heavy chain designated HC thereby rendering the polypeptide incapable of binding to cell surface receptors that are the natural cell surface receptors to which native clostridial neurotoxin binds. Antibodies that bind to the polypeptides, and compositions comprising these antibodies, are also provided, as are DNA vaccines comprising polynucleotides that encode these polypeptides.The antigenic and antibody compositions, and the DNA vaccine compositions, can be used in methods of immunising against, or treating, clostridial neurotoxin poisoning in a subject by administering to that subject a therapeutically effective amount of the composition.

    摘要翻译： 提供抗原组合物，其包含包含第一和第二结构域的单链多肽，其中所述第一结构域是梭菌神经毒素轻链或其片段或变体，并且能够切割一种或多种与胞吐作用必需的相关蛋白或质膜相关蛋白; 并且所述第二结构域是梭菌神经毒素重链HN部分或其片段或变体，其中所述第二结构域能够（i）将多肽转位到细胞中，或（ii）与溶解度相比增加多肽的溶解度 或（iii）将多肽转移到细胞中并且与第一结构域本身的溶解度相比增加多肽的溶解度; 并且其中所述第二结构域缺少称为HC的梭菌神经毒素重链的功能性C-末端部分，从而使所述多肽不能结合作为天然梭菌神经毒素结合的天然细胞表面受体的细胞表面受体。 还提供了结合多肽的抗体和包含这些抗体的组合物，DNA疫苗也包括编码这些多肽的多核苷酸。 抗原和抗体组合物和DNA疫苗组合物可用于通过向该受试者施用治疗有效量的组合物来免疫或治疗受试者的梭菌神经毒素中毒的方法。