医学全在线
医学全在线首页-开云app安装不了怎么办 -药师-护士-卫生资格-高级职称-考试题库-网校-考研-图谱-下载-招聘  
分类
国家级省级浙江省各省杂志
科技核心北大核心CSCDCSCD扩展
工具
期刊知识写作指导 论文投稿推荐期刊
期刊验证论文检测 录用通知往期目录
SCI
SCI指导影响因子
期刊点评基金动态
其它
经济教育计算机
建筑体育农业
北京|天津|河北|山西|湖北|江苏|安徽|山东|上海|浙江|江西|福建|湖南|宁夏|内蒙古|河南
四川|重庆|贵州|云南|辽宁|吉林|广东|广西|海南|陕西|甘肃|新疆|青海|卫生部直属|黑龙江|兵团
您现在的位置: 医学全在线 > 医学论文 > 论文投稿 > 正文:医学论文范文:RNA干扰抑制Survivin表达对人喉癌细胞药物敏感性的影响
    

医学论文范文:RNA干扰抑制Survivin表达对人喉癌细胞药物敏感性的影响

来源:本站原创 更新:2013-9-5 论文投稿平台

医学论文范文:RNA干扰抑制Survivin表达对人喉癌细胞药物敏感性的影响

【摘要】 目的:探讨RNA干扰技术抑制Survivin基因表达对增强人喉癌HEP2细胞化疗药物敏感性。方法:针对Survivin mRNA序列设计合成小干扰RNA(siRNA)的DNA模板,构建pRNATSurvivin重组表达载体,转染人喉癌HEP2细胞;通过RTPCR和Western blot分析其对HEP2细胞内源性Survivin表达的影响;四甲基偶氮唑蓝(MTT)法观察HEP2细胞对化疗药物5FU和优福定敏感性的改变。结果:成功构建pRNATSurvivin重组质粒,并成功转染HEP2细胞;RTPCR和Western blot结果证实重组质粒在mRNA及蛋白水平分别显著抑制Survivin基因表达(P<0.01);MTT及流式细胞仪结果证明在5FU和优福定联合作用下,pRNATSurvivin组HEP2细胞的生长抑制率明显增高(P<0.01)。结论:pRNATSurvivin可抑制Survivin在人喉癌HEP2细胞中的表达,并增强HEP2细胞对化疗药物敏感性。

【关键词】 Survivin RNA干扰 喉癌 药物敏感性

Effect of Inhibited Expression of Survivin by RNA Interference on the Drug Sensitivity in Human Laryngocarcinoma Cells CHEN Xiangjun,YU Zizhong,LI Guoyi^ (Department of Otolaryngology,Taihe Hospital,Yunyang Medical College,Shiyan,Hubei 442000,China)

Abstract:Objective To explore the effect of inhibited expression of survivin by RNA interference on sensitivity of HEP2 cells to chemotherapeutic drugs. Methods One pair of DNA template coding siRNA was designed and synthesized against Survivin mRNA sequence,the pRNATSurvivin recombinant expression vector was constructed and transfected into HEP2 cells.The effect of endogenous survivin expression in HEP2 cells by RNA interference was analyzed with RTPCR and Western blot.The changes of sensitivity to 5FU and UFT in HEP2 cells were observed with MTT.Results Recombinant plasmid pRNATSurvivin was constructed and transfected into HEP2 cells successfully,recombinant plasmid pRNATSurvivin could significantly inhibit the expression of Survivin in HEP2 cells (P<0.01),which was demonstrated by RTPCR and Western blot.The growth inhibitory rate of HEP2 cells in pRNATSurvivin group was significantly increased under the combined effect of 5FU and UFT(P<0.01),which was demonstrated by MTT and flow cytometry. Conclusion pRNAT Survivin could inhibit the expression of Survivin,enhance the sensitivity of HEP2 cells to chemotherapeutic drugs医.学全.在.线网站www.lindalemus.com.

Key words: Survivin;RNA interference;Laryngocarcinoma;Sensitivity


[1] [2] [3] [4] [5] 下一页

...
关于我们 - 联系我们 -版权申明 -诚聘英才 - 网站地图 - 网络课程 - 帮助
医学全在线 版权所有© CopyRight 2006-2046,
浙ICP备12017320号
百度大联盟认证绿色会员实名网站 360认证可信网站 中网验证
Baidu
map