Polypeptides having affinity for HER2
    2.
    发明授权
    Polypeptides having affinity for HER2 有权
    对HER2具有亲和力的多肽

    公开(公告)号:US08501909B2

    公开(公告)日:2013-08-06

    申请号:US12735068

    申请日:2008-12-22

    IPC分类号: A61K38/00 A61K51/08 A61K49/00

    摘要: HER2 binding polypeptides comprising the amino acid sequence EX1 RNAYWEIA LLPNLTNQQK RAFIRKLYDD PSQSSELLX2E AKKLNDSQ wherein X1 in position 2 is M, I or L, and X2 in position 39 is S or C (SEQ ID NO: 1) are disclosed. Moreover, such peptides comprising a chelating environment are disclosed. Also radiolabeled polypeptides formed by the peptides comprising a chelating environment and radionuclides are disclosed. Furthermore, methods of in vivo imaging of the body of a mammalian subject having or suspected of having a cancer characterized by overexpression of HER2 comprising administration of such a radiolabeled polypeptide followed by obtainment of an image of the body using a medical imaging instrument and also methods of treating such cancer are disclosed. Furthermore, the use of such a radiolabeled polypeptide in diagnosis and treatment of cancer characterized by overexpression of HER2. Nucleic acids encoding the polypeptides, expression vectors comprising the nucleic acids and host cells comprising the expression vectors are also disclosed.

    摘要翻译: HER2结合多肽包含氨基酸序列EX1 RNAYWEIA LLPNLTNQQK RAFIRKLYDD PSQSSELLX2E AKKLNDSQ,其中位置2中的X1是M,I或L,而位置39的X2是S或C(SEQ ID NO:1)。 此外,公开了包含螯合环境的这些肽。 还公开了由包含螯合环境和放射性核素的肽形成的放射性标记的多肽。 此外,具有或怀疑具有HER2过表达的哺乳动物受试者的身体的体内成像方法包括施用这种放射性标记的多肽,然后使用医学成像仪获得身体的图像,以及方法 公开了治疗这种癌症的方法。 此外,这种放射性标记的多肽在诊断和治疗HER2过表达的癌症中的应用。 还公开了编码多肽的核酸,包含核酸的表达载体和包含表达载体的宿主细胞。