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铁对人肺腺癌A549细胞凋亡的体外影响 被引量:2

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摘要 目的了解加铁、去铁对体外培养人肺腺癌细胞株A549细胞凋亡的影响,探讨铁代谢与肺癌发生发展的关系。方法体外培养人肺腺癌细胞株A549细胞,采用不同浓度的去铁胺(DFO)及三氯化铁(FeCl3)以及生理盐水作用A549细胞,通过观察细胞形态学变化、流式细胞术(FCM)检测、TUNEL三种方法检测细胞凋亡的变化。结果①不同浓度的FeCl3作用于A549细胞后,在同一时间点随浓度升高细胞凋亡率(APO%)呈下降趋势;②不同浓度FeC l3作用于A549细胞后,仅150μmol/L组48 h出现凋亡梯带,其余浓度均无凋亡梯带出现。③流式细胞仪(FCM)检测各组APO%分别为:10μmol/L FeCl3组6.7%,50μmol/L FeCl3组4.7%,100μmol/L FeCl3组2.5%,150μmol/L FeC l3组12.6%。④浓度为100μmol/L DFO作用于A549细胞,6、12、24、48h FCM检测APO%为:5.2%、17.5%、42.9%、56.8%。浓度为10、50、100、150μmol/L 24hAPO%分别为10.4%,26.2%,42.9%,48.3%。结论三氯化铁可抑制A549细胞凋亡,去铁胺可诱导A549细胞凋亡,铁螯合剂可成为一种有效的抗肿瘤药物。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2010年第24期3713-3715,共3页 Chinese Journal of Gerontology
基金 河南省教育厅科技攻关项目(2009A320018) 河南省卫生科技创新型人才工程专项经费资助
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