三氧化二砷诱导骨髓瘤细胞凋亡机制研究

被引:28
作者
周宇红
黄晓珺
蔡循
沈玉雷
贾培敏
余韵
周励
袁弥满
张学光
陈国强
机构
[1] 上海医科大学中山医院血液科,上海医科大学中山医院血液科,上海第二医科大学附属瑞金医院上海血液学研究所,上海第二医科大学附属瑞金医院上海血液学研究所,上海第二医科大学附属瑞金医院上海血液学研究所,上海第二医科大学附属瑞金医院上海血液学研究所,上海第二医科大学附属
基金
国家杰出青年科学基金;
关键词
三氧化二砷; 骨髓瘤,多发性; 细胞凋亡; 维甲酸; 干扰素;
D O I
暂无
中图分类号
R730.2 [肿瘤病理学、病因学];
学科分类号
100214 ;
摘要
目的 了解三氧化二砷 (As2 O3 )诱导多发性骨髓瘤细胞 (MM)凋亡的可能机制及其与维甲酸和干扰素的相互作用。方法 联合应用As2 O3 和巯基还原剂 (DTT)、谷胱甘肽耗竭剂 (BSO)、全反式维甲酸 (ATRA)或干扰素 (IFN α)处理MM细胞系RPMI82 2 6和U2 6 6细胞 ;应用台盼蓝拒染法计数细胞活力 ,经细胞形态学和流式细胞仪等判定细胞凋亡的程度 ;通过测定细胞内荧光染料Rhodamine 12 3的色强度分析线粒体跨膜电位 (ΔΨm)。结果 BSO可加强As2 O3 诱导的RPMI82 2 6和U2 6 6细胞线粒体ΔΨm下降和凋亡 ,而DTT则有部分拮抗的作用。ATRA诱导RPMI82 2 6细胞凋亡 ,但它和As2 O3 之间无协同效应。ATRA并不诱导U2 6 6细胞凋亡。此外 ,IFN α既不抑制RPMI82 2 6和U2 6 6细胞的生长和活力 ,也不改变As2 O3 对这些细胞的作用。结论 As2 O3 诱导多发性骨髓瘤细胞凋亡和巯基有关 ,但ATRA或干扰素和As2 O3 无协同效应。
引用
收藏
页码:5 / 7
页数:3
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