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    • 9. 发明申请
    • COMPOUND
    • 复合
    • US20110064666A1
    • 2011-03-17
    • US12821711
    • 2010-06-23
    • Satoshi OgawaFumio YamauchiKengo KanazakiMayuko Kishi
    • Satoshi OgawaFumio YamauchiKengo KanazakiMayuko Kishi
    • A61K49/00C07K16/00G01N33/53C12P21/00A61P43/00
    • A61K49/221A61K49/0058A61K49/16C07K16/32C07K2317/622C07K2319/33C07K2319/50
    • When an antigen present at lesion sites is detected using a compound containing a single-chain antibody moiety, the single-chain antibody moiety binds to the antigen present at sites other than lesion sites. As a result, the detection of the lesion sites with high sensitivity and high contrast is difficult, and a compound solving this problem is demanded.The present invention provides a compound including a polymer represented by general formula (1): L-Y-A  (1) wherein, A is a single-chain antibody moiety, which is a polypeptide including an antigen-binding site; L is a linker moiety, which is a polypeptide including a protease cleavage site; Y is a peptide moiety, which including 0 or more amino acids connecting the linker moiety L with the single-chain antibody moiety A; and the linker moiety L binds to an N terminus of the peptide moiety Y or an N terminus of the single-chain antibody moeity A.
    • 当使用含有单链抗体部分的化合物检测存在于病变部位的抗原时,单链抗体部分与存在于除病变部位之外的位点处的抗原结合。 结果,难以检测具有高灵敏度和高对比度的病变部位,需要解决这个问题的化合物。 本发明提供包含通式(1)表示的聚合物的化合物:L-Y-A(1)其中A是单链抗体部分,其是包含抗原结合位点的多肽; L是连接体部分,其是包含蛋白酶切割位点的多肽; Y是肽部分,其包括连接部分L与单链抗体部分A的0个或更多个氨基酸; 并且连接体部分L结合于肽部分Y的N末端或单链抗体动力学A的N末端。