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    • 4. 发明申请
    • IMPLANTABLE LIPOSOME EMBEDDED MATRIX COMPOSITION, USES THEREOF, AND POLYCAPROLACTONE PRATICLES AS SCAFFOLDS FOR TISSUE REGENERATION
    • 可植入的脂质体嵌入基质组合物,其用途以及聚己内酯作为用于组织再生的支架
    • WO2010060104A3
    • 2010-10-28
    • PCT/US2009065797
    • 2009-11-24
    • MOMA THERAPEUTICSSCHUBERT SHAI YEHOSHUA
    • SCHUBERT SHAI YEHOSHUA
    • A61K51/12A61K38/00A61K38/39A61L27/52A61L27/54
    • A61L27/54A61K48/0016A61L27/18A61L27/222A61L27/24A61L27/3804A61L27/44A61L27/48A61L27/52A61L2300/232A61L2300/252A61L2300/258A61L2300/426A61L2300/438A61L2300/45A61L2300/626A61L2400/06C08L67/04
    • In various embodiments, the present invention describes materials and methods for the local reprogramming of cells in a location where the treatment is applied. The invention can be used to replace lost cells or to restore function to tissue damaged due to disease, injury or genetic defect. In various embodiments, the treatment includes a semisolid hydrogel embedded with liposomes. The liposomes can contain an effector molecule or molecules. When phagocytic cells such as monocytes infiltrate the hydrogel, they encounter the liposomes and incorporate the liposomes carrying the effector molecules into the cells. In some embodiments, the effector molecules can be genetic material encoding the expression of specific proteins such as transcription factors, the expression of which can initiate the reprogramming of the cells. In other embodiments, the effector molecules can induce angiogenesis. In other embodiments, the effector molecules are tumor antigens. The matrix can contain other effector molecules designed to attract specific cells to the matrix. The cells can be released from the matrix as the matrix degrades or by active migration from the matrix. The cells can also remain in the matrix and secret molecules such as proteins and hormones that will diffuse through the matrix material to the surrounding tissue.
    • 在各种实施方案中,本发明描述了用于在应用治疗的位置局部重编程细胞的材料和方法。 本发明可以用于替代丢失的细胞或恢复由于疾病,损伤或遗传缺陷而损坏的组织的功能。 在不同的实施方案中,治疗包括用脂质体包埋的半固体水凝胶。 脂质体可以含有效应分子或分子。 当吞噬细胞如单核细胞渗入水凝胶时,它们遇到脂质体并将携带效应分子的脂质体并入细胞中。 在一些实施方案中,效应分子可以是编码特定蛋白质例如转录因子的表达的遗传物质,其表达可以启动细胞的重编程。 在其他实施方案中,效应分子可以诱导血管生成。 在其他实施方案中,效应分子是肿瘤抗原。 基质可以含有其他效应分子,其被设计为将特定细胞吸引至基质。 随着基质降解或从基质中主动迁移,细胞可从基质中释放。 细胞还可以保留在基质中,并保留分子,如蛋白质和激素,通过基质材料扩散到周围组织。