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    • 48. 发明授权
    • Methods and compositions for destruction of selected proteins
    • 用于破坏所选蛋白质的方法和组合物
    • US06670348B1
    • 2003-12-30
    • US09403434
    • 1999-10-20
    • Neal RosenSamuel DanishefskyOuathek OuerfelliScott D. KudukLaura Sepp-Lorenzino
    • Neal RosenSamuel DanishefskyOuathek OuerfelliScott D. KudukLaura Sepp-Lorenzino
    • A61K3131
    • C07D225/06A61K47/554C07J17/00C07J43/00
    • Compounds having an ansamycin anitibiotic, or other moiety which binds to hsp90, coupled to a targeting moiety which binds specifically to a protein, receptor or marker can provide effective targeted delivery of the ansamycin antibiotic leading to the degradation of proteins and death of the targeted cells. These compositions may have different specificity than the ansamycin alone, allowing for a more specific targeting of the therapy, and can be effective in instances where the ansamycin alone has no effect. Thus, these compounds provide an entirely new class of targeted chemotherapy agents with application, depending on the nature of the targeting moiety, to treatment of a variety of different forms of cancer. Such agents can further be used to promote selective degradation of proteins associated with the pathogenesis of others diseases, including antigens associated with autoimmune disorders and pathogenic proteins associated with Alzheimer's disease. Exemplary targeting moieties which may be employed in compounds of the invention include testosterone, estradiol, tamoxifen and wortmannin.
    • 具有安莎霉素无抗生素或与hsp90结合的其它部分的化合物偶联到特异性结合蛋白质,受体或标记的靶向部分可以提供安莎霉素抗生素的有效靶向递送,导致蛋白质的降解和靶细胞的死亡 。 这些组合物可以具有与单独的安莎霉素不同的特异性,允许治疗更具体的靶向,并且在单独使用安沙霉素没有作用的情况下可以是有效的。 因此,根据靶向部分的性质,这些化合物提供了一类全新的靶向化学疗法,可用于治疗多种不同形式的癌症。 此类试剂可进一步用于促进与其他疾病发病相关的蛋白质的选择性降解,所述疾病包括与自身免疫疾病相关的抗原和与阿尔茨海默病有关的病原性蛋白质。 可用于本发明化合物的示例性靶向部分包括睾酮,雌二醇,他莫昔芬和渥曼青霉素。