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    • 41. 发明申请
    • CELL-SPECIFIC GENE DELIVERY VEHICLES
    • 细胞特异性基因递送车辆
    • WO1996011712A2
    • 1996-04-25
    • PCT/US1995014621
    • 1995-10-11
    • CALIFORNIA INSTITUTE OF TECHNOLOGYKAYYEM, Jon, F.MEADE, Thomas, J.FRASER, Scott, E.
    • CALIFORNIA INSTITUTE OF TECHNOLOGY
    • A61K47/48
    • A61K49/146A61K47/645A61K49/085Y10S977/808Y10S977/927Y10S977/93
    • A delivery vehicle is described that is capable of being specifically bound to and taken into targeted cells, delivering numerous physiological agents, particularly paramagnetic ions for magnetic resonance imaging (MRI) of the cells. The delivery vehicle comprises a polymeric molecule having a net positive charge complexed with another polymeric molecule having a net negative charge. Cell targeting moieties and physiological agents, including contrast agents and therapeutic agents, are attached to one or both of the polymeric molecules. In one embodiment, the polymeric molecule having a net negative charge is a nucleic acid. Thus, the delivery vehicles can be used in clinical protocols in which nucleic acids for gene therapy and agents for MRI contrast are co-transported to specific cells allowing medical imaging monitoring of nucleic acid delivery.
    • 描述了能够特异性结合并进入靶细胞的递送载体,递送许多生理剂,特别是顺磁离子用于细胞的磁共振成像(MRI)。 递送载体包含具有与具有净负电荷的另一个聚合物分子络合的净正电荷的聚合物分子。 细胞靶向部分和生理剂,包括造影剂和治疗剂,连接到一个或两个聚合物分子。 在一个实施方案中,具有净负电荷的聚合物分子是核酸。 因此,递送载体可以用于其中用于基因治疗的核酸和用于MRI对比的药剂共同转运到特定细胞的临床方案,允许核酸递送的医学成像监测。