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    • 3. 发明申请
    • CYTOTOXIC COMPOUND-PROTEIN CONJUGATES AS SUPPRESSORS OF TUMOR GROWTH AND ANGIOGENESIS
    • 作为肿瘤生长和血管生成抑制因子的细胞毒素化合物 - 蛋​​白质结合蛋白
    • WO2005025623A2
    • 2005-03-24
    • PCT/US2004024490
    • 2004-07-28
    • UNIV EMORYSHOJI MAMORUSNYDER JAMES PLIOTTA DENNIS CSUN AIMING
    • SHOJI MAMORUSNYDER JAMES PLIOTTA DENNIS CSUN AIMING
    • A61K47/48
    • A61K47/6849A61K47/642
    • Compositions and methods are provided for delivering cytotoxic compounds, such as natural curcumoids and synthetic curcumin analogs, specifically to cancer cells and to blood vessels that nourish solid tumors. The compositions include a cytotoxic drug tethered to a protein, such as factor VIIa, which can bind with high affinity to a receptor, such as tissue factor, expressed on the surface of cancer cells and vascular endothelial cells within the tumor microenvironment. Upon binding, the drug-protein-receptor complex is endocytosed and the drug is subsequently liberated inside the target cell via proteolytic cleavage. The compositions and methods may increase the efficacy of the cytotoxic agets and decrease their side effects by delivering the agents to specific target cells, such as cancer cells, vascular endothelial cells in a tumor, and metastatic foci anywhere in the body, providing the target cells express surface bound tissue factor. Additionally, methods of synthesis of cytotoxic compound-protein conjugates are provided, for example, curcuminoid-tether­linker-factor VIIa composition, as well as pharmaceutically acceptable compositions and methods for delivering a therapeutically-effective amount of a cytotoxic compound-protein conjugate together with one or more pharmaceutically acceptable carriers (additives) and/or diluents to an animal or human patient.
    • 提供组合物和方法用于递送细胞毒性化合物,例如天然的姜黄素和合成的姜黄素类似物,特别是癌细胞和滋养实体瘤的血管。 组合物包括与诸如因子VIIa结合的蛋白质的细胞毒性药物,其可以高度亲和力结合到在肿瘤微环境中在癌细胞表面和血管内皮细胞表面上的受体,例如组织因子。 结合后,药物 - 蛋​​白 - 受体复合物被内吞,并且药物随后通过蛋白水解切割在靶细胞内释放。 组合物和方法可以通过将药物递送到特定靶细胞,例如肿瘤中的癌细胞,血管内皮细胞和体内任何地方的转移灶,来增加细胞毒性作用的功效并降低其副作用,提供靶细胞 表达结合组织因子。 此外,提供了合成细胞毒性化合物 - 蛋​​白质缀合物的方法,例如,姜黄素 - tetherlinker-factor VIIa组合物,以及用于将治疗有效量的细胞毒性化合物 - 蛋​​白质缀合物与一种 或更多的药学上可接受的载体(添加剂)和/或稀释剂给动物或人类患者。