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    • 1. 发明申请
    • METHODS AND COMPOSITIONS USING CHELATOR-ANTIBODY CONJUGATES
    • 方法和组合物使用治疗 - 抗体结合
    • US20100104511A1
    • 2010-04-29
    • US12516172
    • 2007-11-14
    • Razelle KurzrockJing GongDavid YangSaady Kohanim
    • Razelle KurzrockJing GongDavid YangSaady Kohanim
    • A61K51/00C07K16/00A61P35/04A61P29/00
    • A61K51/103A61K49/0002A61K51/0474
    • Disclosed are pharmaceutical compositions that include a chelator and an antibody directed against a phosphorylation site of a protein, wherein the antibody is conjugated to the chelator to form a chelator-antibody conjugate. For example, the antibody may recognize a phosphorylated tyrosine residue or a phosphorylated serine residue of a cell surface receptor. Also disclosed are methods of synthesizing a radiolabeled chelator-antibody conjugate, wherein the antibody is directed against a phosphorylation site of a protein. Also disclosed are methods for imaging a site in a subject that involve administering to the subject an effective amount of a composition that includes a valent metal ion-labeled chelator-antibody conjugate, wherein the antibody is an antibody directed against a phosphorylation site of a protein, and detecting a radioactive signal from the site in the subject following administration of an effective amount of the composition. The method of imaging can be applied in diagnosing a tumor, such as a tumor that can be responsive to therapy using a tyrosine kinase inhibitor, and in the treatment of a tumor, such as by targeting therapy to cell surface receptors that include phosphorylation sites.
    • 公开了包含螯合剂和针对蛋白质的磷酸化位点的抗体的药物组合物,其中抗体与螯合剂缀合以形成螯合剂 - 抗体缀合物。 例如,抗体可以识别细胞表面受体的磷酸化酪氨酸残基或磷酸化丝氨酸残基。 还公开了合成放射性标记的螯合剂 - 抗体缀合物的方法,其中抗体针对蛋白质的磷酸化位点。 还公开了用于对受试者中的位点成像的方法,其涉及向受试者施用有效量的包含价值金属离子标记的螯合剂 - 抗体缀合物的组合物,其中所述抗体是针对蛋白质的磷酸化位点的抗体 并且在施用有效量的组合物之后从受试者的部位检测放射性信号。 成像方法可以应用于诊断肿瘤,例如可以使用酪氨酸激酶抑制剂对治疗有反应的肿瘤,以及治疗肿瘤,例如通过靶向包括磷酸化位点的细胞表面受体的治疗。