The present invention relates to methods and pharmaceutical compositions for the treatment of systemic mastocytosis. The inventors showed the effect of KPT-251 treatment on SCF-dependent human Mast cell (MC) line without KIT mutation (WT ROSA) and on two factor-independent MC lines with KIT mutations : ROSA Δ 417-419 insY and ROSA D816V. KPT is a Selective Inhibitor of Nuclear Export (SINE) that specifically inhibits the activity of the exportin-1 (XPO1). KPT-251 treatment induces minimal toxicity in non-cancerous hematopoietic cells both in vitro and in vivo. In particular, the present invention relates a method of treating systemic mastocytosis in patient in need thereof comprising administering to the patient a therapeutically effective amount of a XPO1 inhibitor.
本发明涉及治疗系统性肥大细胞增多症的方法和药物组合物。本发明者展示了 K
PT-251 处理对无 KIT 突变的 SCF 依赖性人肥大细胞(MC)系(WT ROSA)和两种 KIT 突变的因子依赖性 MC 系的影响:ROSA Δ 417-419 insY 和 ROSA D816V。K
PT 是一种核输出选择性
抑制剂(SINE),能特异性抑制输出蛋白-1(XPO1)的活性。K
PT-251 在体外和体内对非癌造血细胞的毒性都很小。特别是,本发明涉及一种治疗有需要的全身性肥大细胞增多症患者的方法,包括向患者施用治疗有效量的 XPO1
抑制剂。