陈凤华,李进,张恒,等.腺病毒介导的人视网膜母细胞瘤94基因对人食管癌细胞辐射增敏作用的研究[J].中华放射医学与防护杂志,2011,31(5):515-518.CHEN Feng-hua,LI Jin,ZHANG Heng,et al.Radiosensitivity enhancement of recombimant adenoviral-mediated retinoblastoma 94 gene in human esophageal carcinoma cells[J].Chin J Radiol Med Prot,2011,31(5):515-518
腺病毒介导的人视网膜母细胞瘤94基因对人食管癌细胞辐射增敏作用的研究
Radiosensitivity enhancement of recombimant adenoviral-mediated retinoblastoma 94 gene in human esophageal carcinoma cells
投稿时间:2010-09-26  
DOI:10.3760/cma.j.issn.0254-5098.2011.05.002
中文关键词:  重组腺病毒人视网膜母细胞瘤94基因  基因治疗  放射治疗  食管癌
英文关键词:Retinoblastoma 94 gene  Gene therapy  Radiation therapy  Esophageal carcinoma
基金项目:国家自然科学基金(30770638)
作者单位
陈凤华 300192 天津,北京协和医学院 中国医学科学院放射医学研究所 天津市分子核医学重点实验室 
李进 300192 天津,北京协和医学院 中国医学科学院放射医学研究所 天津市分子核医学重点实验室 
张恒 300192 天津,北京协和医学院 中国医学科学院放射医学研究所 天津市分子核医学重点实验室 
王欣茹 第二炮兵总医院检验科 
邵盈 天津医科大学 
吴丽芬 天津医科大学 
姜恩海 300192 天津,北京协和医学院 中国医学科学院放射医学研究所 天津市分子核医学重点实验室 
王芹 300192 天津,北京协和医学院 中国医学科学院放射医学研究所 天津市分子核医学重点实验室 
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中文摘要:
      目的 探讨重组腺病毒人视网膜母细胞瘤94基因(Ad-Rb94)对γ射线杀伤人食管癌 EC109细胞的增敏作用。方法 将Ad-Rb94体外转染后的EC109细胞,按数字随机表法,分为空白对照组、Ad-LacZ对照组、Ad-Rb94组、照射组和Ad-Rb94联合照射组,观察EC109的细胞的抑制率、细胞周期和Rb蛋白的表达。结果 Ad-Rb94组、照射组和Ad-Rb94联合照射组对EC109细胞生长均具有抑制作用,Ad-Rb94联合照射组的抑制效应最强,明显高于Ad-Rb94组和照射组(F=23.31,P<0.05)。Ad-Rb94联合照射组EC109细胞出现明显的G2期阻滞,G2期细胞所占比例达50%。Ad-Rb94联合照射组表达Rb蛋白的细胞明显增加,阳性率达71%,较Ad-Rb94组和照射组差异有统计学意义(χ2=8.31和6.73,P<0.05)。结论 Rb94基因联合照射能明显提高对人食管癌细胞的辐射增敏性。
英文摘要:
      Objective To study the radiosensitivity enhancement effects of recombinant adenovirus mediated retinoblastoma 94 gene on the growth of esophageal carcinoma cells EC109. Methods EC109 cells was transfected with recombinant Rb94 gene adenovirus and irradiated by 137Cs γ-rays. The cohorts were divided into groups as blank control,Ad-LacZ,Ad-Rb94,radiation and Ad-Rb94 combined with radiation. Cell inhibition ratio, cell cycle and expression of retinoblastoma protein of EC109 cells were analyzed. Results The growth of EC109 cells transfected with Ad-Rb94, radiation and Ad-Rb94 combined with radiation group was all inhibited. The group of Ad-Rb94 combined with radiation resulted in greater inhibition of cells growth compared with Ad-Rb94 group and radiation group(F=23.31, P<0.05). Cells of G2 phases of EC109 cancinoma cells for Ad-Rb94 combined with radiation group were the highest, which was 50%. The combination of Ad-Rb94 and radiation group resulted in the greatest expression of retinoblastoma protein, which reached 71%, significantly higher than Ad-Rb94 infection and radiation groups (χ2=8.31,6.73,P<0.05). Conclusions Retinoblastoma 94 gene combined with ionizing radiation can enhance the radiation sensitivity of EC109 cells.
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