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    • 7. 发明申请
    • SUPRAMOLECULAR AGGREGATES CONTAINING CHELATING AGENTS AND BIOACTIVE PEPTIDES AS EFFECTIVE AND SELECTIVE DELIVERY TOOLS FOR DRUGS AND CONTRAST AGENTS IN MRI OR NUCLEAR MEDICINE
    • 含有螯合剂和生物活性肽的分子聚集体作为药物和对比剂在MRI或核医学中的有效和选择性递送工具
    • WO2006128643A2
    • 2006-12-07
    • PCT/EP2006/005046
    • 2006-05-26
    • ACCARDO, AntonellaTESAURO, DiegoPADUANO, LuigiPEDONE, CarloALOJ, LuigiMORELLI, Giancarlo
    • ACCARDO, AntonellaTESAURO, DiegoPADUANO, LuigiPEDONE, CarloALOJ, LuigiMORELLI, Giancarlo
    • A61K51/1234A61K47/6907A61K47/6911A61K49/085A61K49/10A61K49/14A61K49/1812B82Y5/00
    • The invention relates to supramolecular aggregates obtained by coaggregation of two monomers: - a first monomer containing a paramagnetic or radioactive metal ion complexed by a chelating agent having a lipophilic moiety, - a second monomer containing a bioactive peptide linked to a lipophilic moiety through an organic spacer. The aggregates are selectively driven by the exposed bioactive peptide on a desired biological target. The aggregates (micelles, vesicles or liposomes) could entrap on their inner region or on their surface a pharmaceutical active principle (drug). The invention thus relates to target specific delivery of drugs and/or metal ions. The aggregates object of this invention could act as: i) selective vehicles of contrast agents for both Magnetic Resonance Imaging and Nuclear Medicine techniques; ii) selective vehicles for simultaneous delivery of a drug (in the inner compartment) and a contrast agent (on the aggregate surface, for its visualization); iii) selective delivery of a drug and a therapeutic active radionuclide such as a beta-emitting metal ion. The invention therefore provides compositions containing said aggregates for use as contrast agents, in nuclear medicine or MRI, for the selective delivery of drugs, and for simultaneous delivery of a drug and a metal ion.
    • 本发明涉及通过两个单体共聚获得的超分子聚集体: - 含有由具有亲油部分的螯合剂络合的顺磁性或放射性金属离子的第一单体, - 含有通过有机物与亲油部分连接的生物活性肽的第二单体 间隔。 聚集体由暴露的生物活性肽选择性地驱动在期望的生物靶上。 聚集体(胶束,囊泡或脂质体)可以在其内部区域或其表面上捕获药物活性成分(药物)。 因此,本发明涉及药物和/或金属离子的目标特异性递送。 本发明的聚集体的目的可以用作:i)用于磁共振成像和核医学技术的造影剂的选择性载体; ii)用于同时递送药物(在内室中)和造影剂(在聚集体表面上用于其可视化)的选择性载体; iii)选择性递送药物和治疗性活性放射​​性核素,例如β发射金属离子。 因此,本发明提供含有用作造影剂,核医学或MRI中的用于选择性递送药物以及用于同时递送药物和金属离子的所述聚集体的组合物。