Methods for coupling targeting peptides onto recombinant lysosomal enzymes for improved treatments of lysosomal storage diseases
    6.
    发明授权
    Methods for coupling targeting peptides onto recombinant lysosomal enzymes for improved treatments of lysosomal storage diseases 有权
    将靶向肽结合到重组溶酶体酶上以改进溶酶体贮积病治疗的方法

    公开(公告)号:US09545450B2

    公开(公告)日:2017-01-17

    申请号:US14122858

    申请日:2012-05-25

    申请人: Hung Do

    发明人: Hung Do

    摘要: Described herein are methods of making targeting peptides conjugated to recombinant lysosomal enzymes by modifying the amino (N)-terminus and one or more lysine residues on recombinant human lysosomal enzymes using a first crosslinking agent to give rise to first crosslinking agent modified recombinant human lysosomal enzymes, modifying the first amino acid within a short linker at the amino (N)-terminus on a variant IGF-2 peptide using a second crosslinking agent to give rise to a second crosslinking agent modified variant IGF-2 peptide, and then conjugating the first crosslinking agent modified recombinant human lysosomal enzyme to the second crosslinking agent modified variant IGF-2 peptide containing a short linker. Also described herein are conjugates synthesized characterized as having higher affinities for the IGF2/CI-MPR receptor and cellular uptake using the methods disclosed herein. Also described herein are treatment methods using the disclosed conjugates.

    摘要翻译: 本文描述的是通过使用第一交联剂修饰重组人溶酶体酶上的氨基(N)末端和一个或多个赖氨酸残基以产生第一交联剂修饰的重组人溶酶体酶来制备与重组溶酶体酶缀合的靶向肽的方法 使用第二交联剂在变体IGF-2肽上在氨基(N)末端修饰短接头内的第一个氨基酸,以产生第二交联剂修饰的变体IGF-2肽,然后将第一个 交联剂修饰的重组人溶酶体酶至含有短接头的第二交联剂修饰变体IGF-2肽。 本文还描述了使用本文公开的方法合成的缀合物,其特征在于对IGF2 / CI-MPR受体具有较高的亲和力和细胞摄取。 本文还描述了使用所公开的缀合物的治疗方法。