Stable analogs of bioactive peptides containing disulfide linkages
    41.
    发明授权
    Stable analogs of bioactive peptides containing disulfide linkages 失效
    含有二硫键的生物活性肽的稳定类似物

    公开(公告)号:US06664367B1

    公开(公告)日:2003-12-16

    申请号:US08278437

    申请日:1994-07-21

    IPC分类号: C07K1600

    摘要: Stable analogs of cyclic peptides containing disulfide linkages are disclosed. The disulfide linkage is modified by one of four methods: (a) sulfide contraction, (b) isosteric substitution, (c) thioketal expansion, or (d) alkylation expansion. In sulfide contraction the disulfide bond (—S—S—) is replaced with a monosulfide bond (—S—) in which a bifunctional effector molecule, such as a ligand or chemotoxic agent, is bound to the new peptide linkage. In isosteric substitution, one sulfur atom is replaced with a carbon atom and at least one of the carbon atoms at the modified site is a bifunctional effector molecule. In thioketal expansion, an alkylidene unit (—CR1C2—) is inserted between the two sulfur atoms. In alkylation expansion, an alkyl moiety of from C2 to C3, is inserted between the two sulfur atoms.

    摘要翻译: 公开了含有二硫键的环肽的稳定类似物。 二硫键通过四种方法之一进行改性:(a)硫化物收缩,(b)等排取代,(c)硫代缩酮扩展或(d)烷基化扩展。 在硫化物收缩中,二硫键(-S-S-)用单硫键(-S-)代替,其中双功能效应分子如配体或化学毒性剂与新的肽键结合。 在等排取代中,一个硫原子被碳原子取代,并且在修饰位点处的至少一个碳原子是双功能效应子分子。 在硫缩酮扩展中,在两个硫原子之间插入亚烷基单元(-CR1C2-)。 在烷基化扩展中,C2至C3的烷基部分插入在两个硫原子之间。

    Peptide compositions and method of radiolabeling
    42.
    发明授权
    Peptide compositions and method of radiolabeling 失效
    肽组合物和放射性标记方法

    公开(公告)号:US5804157A

    公开(公告)日:1998-09-08

    申请号:US989434

    申请日:1997-12-12

    摘要: This invention relates to radiolabeled peptide compositions for radiopharmaceutical use and, more specifically, to radiolabeled peptides for diagnostic or therapeutic use having an unmodified carboxy terminal amino acid. The radiopharmaceutical composition may be used for targeting a selected biological site. The radiolabeled peptide is characterized by having its carboxy terminal amino acid in its carboxylic acid form and the peptide is coupled to a diagnostic or therapeutic radionuclide by a chelating agent. The radiopharmaceutical composition preferably comprises a radiolabeled peptide selected from the group consisting of somatostatin, an analog of somatostatin, a derivative of somatostatin and peptides capable of binding to the somatostatin receptor, where the peptide is coupled to a diagnostic or therapeutic radionuclide by a chelating agent has its carboxy terminal amino acid in its carboxylic acid form.

    摘要翻译: 本发明涉及用于放射性药物用途的放射性标记肽组合物,更具体地,涉及具有未修饰的羧基末端氨基酸的用于诊断或治疗用途的放射性标记肽。 放射性药物组合物可以用于靶向选定的生物部位。 放射性标记的肽的特征在于其羧基末端氨基酸为羧酸形式,肽通过螯合剂偶联至诊断或治疗放射性核素。 放射性药物组合物优选包含选自生长抑素,生长抑素类似物,生长抑素衍生物和能够结合生长抑素受体的肽的放射性标记的肽,其中肽通过螯合剂偶联至诊断或治疗放射性核素 其羧基末端氨基酸呈羧酸形式。

    Radiopharmaceutical compositions capable of localizing at sites of
thrombus
    45.
    发明授权
    Radiopharmaceutical compositions capable of localizing at sites of thrombus 失效
    可以在血栓位置定位的放射性药物组合物

    公开(公告)号:US6132697A

    公开(公告)日:2000-10-17

    申请号:US870042

    申请日:1997-06-05

    摘要: A radiopharmaceutical capable of localizing at a site of thrombus containing activated platelets within a mammalian body is provided wherein the radiopharmaceutical comprises a linear peptidomimetic containing ligand capable of specifically binding to the GPIIb/IIIa integrin receptor of platelets in the thrombus and a radionuclide covalently bound to the peptidomimetic containing ligand. The ligand compositions of the invention are provided complexed with a selected metal radionuclide to form a diagnostic or therapeutic radiopharmaceutical to image a site of thrombus or provide radiotherapy to the site of thrombus, respectively. Methods of imaging a site of thrombus in a mammalian body by administering a diagnostically effective amount of the radiopharmaceutical composition of this invention complexed with a selected diagnostic metal radionuclide and methods of providing therapy to a site of thrombus in a mammalian body by administering a therapeutically effective amount of the radiopharmaceutical composition of this invention complexed with a selected therapeutic metal radionuclide are also provided as well as kits for preparing such radiopharmaceutical compositions.

    摘要翻译: 提供了能够在哺乳动物体内含有活化血小板的血栓位点定位的放射性药物,其中放射性药物包含能够特异性结合血栓中血小板的GPIIb / IIIa整联蛋白受体的线性拟肽含量配体和共价结合的放射性核素 含有拟肽的配体。 提供本发明的配体组合物与所选择的金属放射性核素复合以形成诊断或治疗性放射性药物,以分别对血栓位点成像或向血栓部位提供放射治疗。 通过施用诊断上有效量的本发明的放射性药物组合物与选定的诊断性金属放射性核素复合而在哺乳动物体内成像血栓位点的方法和通过施用治疗有效的方法向哺乳动物体内的血栓位点提供治疗 还提供了与选定的治疗性金属放射性核素复合的本发明的放射性药物组合物的量以及用于制备这种放射性药物组合物的试剂盒。

    Radiolabeled peptide compositions for site-specific targeting
    46.
    发明授权
    Radiolabeled peptide compositions for site-specific targeting 失效
    用于位点特异性靶向的放射性标记肽组合物

    公开(公告)号:US5830431A

    公开(公告)日:1998-11-03

    申请号:US480373

    申请日:1995-06-07

    摘要: This invention relates to radiolabeled peptide compositions for radiopharmaceutical use and, more specifically, to radiolabeled peptides for diagnostic or therapeutic use having an unmodified carboxy terminal amino acid. The radiopharmaceutical composition may be used for targeting a selected biological site. The radiolabeled peptide is characterized by having its carboxy terminal amino acid in its carboxylic acid form and the peptide is coupled to a diagnostic or therapeutic radionuclide by a chelating agent. The radiopharmaceutical composition preferably comprises a radiolabeled peptide selected from the group consisting of somatostatin, an analog of somatostatin, a derivative of somatostatin and peptides capable of binding to the somatostatin receptor, where the peptide is coupled to a diagnostic or therapeutic radionuclide by a chelating agent has its carboxy terminal amino acid in its carboxylic acid form.

    摘要翻译: 本发明涉及用于放射性药物用途的放射性标记肽组合物,更具体地,涉及具有未修饰的羧基末端氨基酸的用于诊断或治疗用途的放射性标记肽。 放射性药物组合物可以用于靶向选定的生物部位。 放射性标记的肽的特征在于其羧基末端氨基酸为羧酸形式,肽通过螯合剂偶联至诊断或治疗放射性核素。 放射性药物组合物优选包含选自生长抑素,生长抑素类似物,生长抑素衍生物和能够结合生长抑素受体的肽的放射性标记的肽,其中肽通过螯合剂偶联至诊断或治疗放射性核素 其羧基末端氨基酸呈羧酸形式。