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三氧化二砷对人骨肉瘤U2-OS细胞增殖和周期的影响 被引量:1

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摘要 目的观察三氧化二砷(As2O3)在体外对人骨肉瘤U2-OS细胞增殖及周期的影响。方法将对数生长期人骨肉瘤U2-OS细胞分为两组,实验组分别加入0.51、.01、.5μmol/L As2O3,阴性对照组加入同体积培养液,阳性对照组加入5-Fu 15 mg/L,采用MTT比色法检测各组24、48、72 h增殖抑制率,流式细胞仪检测48 h后细胞周期变化。结果各浓度的As2O3对骨肉瘤U2-OS细胞均具有抑制增殖作用,且呈剂量和时间依赖性;随着As2O3浓度的升高,细胞周期发生S期阻滞,与正常对照组相比有统计学差异(P<0.05)。结论 As2O3能抑制骨肉瘤U2-OS细胞增殖,其机制可能为使细胞发生S期阻滞。
出处 《山东医药》 CAS 北大核心 2011年第47期47-48,共2页 Shandong Medical Journal
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