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    • 3. 发明授权
    • Method of treating chronic myelogenous leukemia cells
    • 治疗慢性骨髓性白血病细胞的方法
    • US07799788B2
    • 2010-09-21
    • US12364009
    • 2009-02-02
    • Kapil N. BhallaFrancis Y. Lee
    • Kapil N. BhallaFrancis Y. Lee
    • A61K31/497
    • A61K31/4745A61K31/506A61K45/06A61K2300/00
    • Here, the inventors disclose the treatment of imatinib mesylate resistant chronic myelogenous leukemia cells with a cotreatment of vorinostat (SAHA, suberoylanilide hydroxamic acid) and dasatinib, a dual Abl/Src kinase (TK) inhibitor. Combined treatment of cultured human CML and BaF3 cells with vorinostat and dasatinib induced more apoptosis than either agent alone, as well as synergistically induced loss of clonogenic survival, which was associated with greater depletion of Bcr-Abl, p-CrkL and p-STAT5 levels. Co-treatment with dasatinib and vorinostat also attenuated the levels of Bcr-AblE255K and Bcr-AblT315I and induced apoptosis of BaF3 cells with ectopic expression of the mutant forms of Bcr-Abl. Finally, co-treatment of the primary CML cells with vorinostat and dasatinib induced more loss of cell viability and depleted Bcr-Abl or Bcr-AblT315I, p-STAT5 and p-CrkL levels than either agent alone.
    • 在这里,发明人公开了通过联合维生素(SAHA,辛二酰苯胺异羟肟酸)和达沙替尼(双重Abl / Src激酶(TK))抑制剂的治疗来治疗甲磺酸伊马替尼耐药性慢性骨髓性白血病细胞。 培养的人CML和BaF3细胞与伏立诺他和达沙替尼的联合治疗诱导出比单独的任一种更多的凋亡,以及协同诱导的克隆形成存活的损失,其与Bcr-Abl,p-CrkL和p-STAT5水平的更大的消耗相关 。 与dasatinib和伏立诺他治的联合治疗也减弱了Bcr-AblE255K和Bcr-AblT315I的水平,并诱导了Bcr-Abl突变形式异位表达BaF3细胞凋亡。 最后,原代CML细胞与伏立诺他和达沙替尼的共同治疗比单独使用任一试剂诱导更多的细胞活力丧失和消耗Bcr-Abl或Bcr-AblT315I,p-STAT5和p-CrkL水平。