[1]姚建新,姚志峰,李占峰,等. 荜茇明碱对人乳腺癌MDA?蛳 MB?蛳 231细胞放射增敏作用[J].介入放射学杂志,2014,(02):147-151.
 MDA? MB? cells line in vitro YAO Jian? xin,YAO Zhi? feng,LI Zhan? feng,et al. Radio?蛳 sensitivity enhancement effect of piplartine on human breast adenoma[J].journal interventional radiology,2014,(02):147-151.
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 荜茇明碱对人乳腺癌MDA?蛳 MB?蛳 231细胞放射增敏作用 ()

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《介入放射学杂志》[ISSN:1008-794X/CN:31-1796/R]

卷:
期数:
2014年02期
页码:
147-151
栏目:
实验研究
出版日期:
2014-02-28

文章信息/Info

Title:
 Radio?蛳 sensitivity enhancement effect of piplartine on human breast adenoma
作者:
 姚建新 姚志峰 李占峰 刘永彪
Author(s):
 MDA?蛳 MB?蛳 231 cells line in vitro YAO Jian?蛳 xin YAO Zhi?蛳 feng LI Zhan?蛳 feng LIU Yong?蛳 biao.
Department of Medical Imaging, Nanjing Health School of Jiangsu Union Technical Institute, Nanjing, Jiangsu Province 210038, China
关键词:
 【关键词】 荜茇明碱 MDA?蛳 MB?蛳 231细胞株 放射增敏 凋亡 活性氧 Bax Bcl?蛳 2
文献标志码:
A
摘要:
 【摘要】 目的 探讨荜茇明碱对人乳腺癌MDA?蛳 MB?蛳 231细胞的放射增敏作用及其可能机制。方法 体外培养MDA?蛳 MB?蛳 231细胞,取对数生长期细胞进行实验。将细胞分为对照组、X射线照射组、荜茇明碱处理组、荜茇明碱联合X射线照射组。克隆集落形成法分析荜茇明碱对MDA?蛳 MB?蛳 231细胞的放射增敏作用,按多靶单击模型拟合细胞存活曲线,确定存活分数(SF)、平均致死剂量(D0)、准阈剂量(Dq),计算放射增敏比(SER)。用流式细胞仪(FCM)检测细胞凋亡;用Western blot观察凋亡相关蛋白的表达;DCFH?蛳 DA探针结合FCM分析细胞内活性氧水平的变化。结果 克隆形成试验显示,与单纯X射线照射组细胞相比,荜茇明碱联合X射线照射组细胞克隆形成能力下降,SF2、D0及Dq均下降(P均 < 0.05),其放射增敏比(SERD0)为1.22及1.29。与单纯X射线照射组相比,荜茇明碱联合X射线照射组细胞凋亡明显增加。与对照组和单独处理组相比,荜茇明碱与X射线联合处理组使Bcl?蛳 2表达明显减少,Bax的表达明显增加。荜茇明碱提高了X射线照射引起的细胞内活性氧的水平。结论 低浓度的荜茇明碱增加了MDA?蛳 MB?蛳 231细胞的放射敏感性,可能与其调控凋亡相关蛋白表达并且升高细胞内活性氧水平,从而增加X射线诱导的细胞凋亡有关。

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备注/Memo

备注/Memo:
 (收稿日期:2013-08-11)
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