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    • 4. 发明申请
    • METHODS FOR ENHANCING THE EFFICACY OF CYTOTOXIC AGENTS THROUGH THE USE OF HSP90 INHIBITORS
    • 通过使用HSP90抑制剂增强细胞毒性因子效力的方法
    • WO0236171A9
    • 2002-11-21
    • PCT/US0146304
    • 2001-11-01
    • SLOAN KETTERING INST CANCERROSEN NEALMUNSTER PAMELA
    • ROSEN NEALMUNSTER PAMELA
    • A61K45/06A61K31/282A61K31/337A61K31/365A61K31/395A61K31/505A61K31/704A61K33/24A61K38/00A61K38/43A61P11/00A61P15/00A61P35/00A61P43/00A61K48/00A61PG01N33/535
    • A61K33/24A61K31/282A61K31/337A61K31/365A61K31/395A61K31/505A61K31/704A61K2300/00
    • The administration of cytotoxic agents followed by the administration of heat shock protein 90 inhibitors, such as ansamycins, has a synergistic effect on the growth inhibition of cells. This synergy occurs at doses of each cytotoxic agent that normally only causes minimal growth inhibition of cells. Such combination therapy thus allows one to use lower doses of cytotoxic agents to avoid or reduce their respective toxicity to patients without compromising their growth inhibitory effects. Thus, these combinations can be used for the treatment of an animal, preferably a mammal, that has a cell proliferative disorder, whether the cells have wild-type Rb or are Rb deficient or Rb negative. One such method, directed to treating cell proliferative disorders includes the step of administering a therapeutic effective amount of a cytotoxic agent followed by administering a therapeutic effective amount of a heat shock protein 90 inhibitor. The cytotoxic agent may be a microtubule-affecting agent, topoisomerase II inhibitor, a platinum complex, paclitaxel, or a paclitaxel derivative. The HSP90 inhibitor may be an ansamycin, radicicol or a synthetic compound that binds to the ATP-binding site of HSP90.
    • 细胞毒性剂的施用,然后施用热休克蛋白90抑制剂,例如安莎霉素,对细胞的生长抑制具有协同作用。 这种协同作用发生在通常仅引起细胞生长抑制最小的各细胞毒剂剂量。 因此,这样的组合疗法允许使用较低剂量的细胞毒剂以避免或降低其对患者的相应毒性而不损害其生长抑制作用。 因此,这些组合可用于治疗具有细胞增殖性疾病的动物,优选哺乳动物,细胞是否具有野生型Rb或Rb缺陷或Rb阴性。 针对治疗细胞增殖性疾病的一种这样的方法包括施用治疗有效量的细胞毒性剂的步骤,然后施用治疗有效量的热休克蛋白90抑制剂。 细胞毒性剂可以是微管影响剂,拓扑异构酶II抑制剂,铂络合物,紫杉醇或紫杉醇衍生物。 HSP90抑制剂可以是结合HSP90的ATP结合位点的安莎霉素,根霉素或合成化合物。