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    • 6. 发明申请
    • TARGETED FUSION PROTEINS FOR CANCER THERAPY
    • 用于癌症治疗的目标融合蛋白
    • WO2007057922A1
    • 2007-05-24
    • PCT/IN2006/000452
    • 2006-11-16
    • DABUR PHARMA LIMITEDMAITHAL, KapilNACHIAPPAN, Dhatchana, MoorthyMUKHERJEE, Rama
    • MAITHAL, KapilNACHIAPPAN, Dhatchana, MoorthyMUKHERJEE, Rama
    • C07K14/435A61K38/17
    • A61K38/1709
    • The invention relates to fusion proteins useful as therapeutics against cancer. The fusion protein comprises of cell-targeting moiety and apoptosis-inducing moiety. Cell-targeting moiety and apoptosis-inducing moiety are linked by a flexible linker, which are specifically recognized by cancer specific protease and cleaved in situ to release the apoptotic domain. In particular, the invention is illustrated by a recombinant fusion protein between human Vasoactive Intestinal Peptide (VIP) and BH3 domain of Bcl2 family protein, linked by a linker that has site for cancer specific proteases. The fusion protein specifically targets VIP receptor over-expressing cancer cells and induces cell-specific apoptosis after cleavage at the linker site by cancer specific proteases. Such fusion proteins are useful for the delivery of therapeutic/apoptotic moiety (peptides) to specific cells with perturbed expression of, but not limited to neuropeptide receptors.
    • 本发明涉及可用作抗癌药物的融合蛋白。 融合蛋白包含细胞靶向部分和凋亡诱导部分。 细胞靶向部分和凋亡诱导部分通过柔性接头连接,柔性接头被癌特异性蛋白酶特异性识别并原位切割以释放凋亡结构域。 特别地,本发明由人血管活性肽(VIP)和Bcl2家族蛋白的BH3结构域之间的重组融合蛋白说明,其通过具有癌症特异性蛋白酶位点的接头连接。 融合蛋白特异性靶向VIP受体过表达癌细胞,并通过癌特异性蛋白酶在连接位点切割后诱导细胞特异性凋亡。 这种融合蛋白可用于将治疗性/凋亡部分(肽)递送至具有神经肽受体的扰动表达但不限于特异性细胞。