[1]王春毅,傅仲学.Ad-delE1b55kD-shRNA/Survivin-EGFP的构建及鉴定[J].第三军医大学学报,2007,29(13):1293-1297.
 WANG Chun-yi,FU Zhong-xue.Construction and identification of conditionally replicating adenovirus vector Ad-delE1b55kD-shRNA/Survivin-EGFP[J].J Third Mil Med Univ,2007,29(13):1293-1297.
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Ad-delE1b55kD-shRNA/Survivin-EGFP的构建及鉴定(/HTML )
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《第三军医大学学报》[ISSN:1000-5404/CN:51-1095/R]

卷:
29卷
期数:
2007年第13期
页码:
1293-1297
栏目:
论著
出版日期:
2007-07-15

文章信息/Info

Title:
Construction and identification of conditionally replicating adenovirus vector Ad-delE1b55kD-shRNA/Survivin-EGFP
作者:
王春毅 傅仲学
重庆医科大学附属第一医院普通外科
Author(s):
WANG Chun-yi FU Zhong-xue
Department of General Surgery, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
关键词:
肿瘤增殖型腺病毒RNA干扰存活素结肠癌
Keywords:
conditionally replicating adenovirus RNA interference Survivin colon carcinoma
分类号:
R735.3; R73-36+2
文献标志码:
A
摘要:
目的    构建特异性强,转染率高,针对人Survivin进行RNA干扰的肿瘤增殖型腺病毒载体(Ad-delE1b55kD-shRNA/Survivin-EGFP)。     方法    将针对人Survivin的shRNA的基因序列及EGFP基因序列克隆至肿瘤增殖型腺病毒穿梭质粒pAd-delE1b55kD;HEK-293细胞中包装出毒得到重组腺病毒Ad-delE1b55kD-shRNA/Survivin-EGFP并测序鉴定。用重组腺病毒感染结肠癌细胞HT-29并检测转染率,用RT-PCR和Western blot分别检测转染后的HT-29细胞中Survivin mRNA和蛋白表达的变化。     结果    序列测定证明针对人Survivin的shRNA序列及EGFP序列被成功构建到肿瘤增殖型腺病毒载体中;Ad-delE1b55kD-shRNA/Survivin-EGFP对结肠癌细胞HT-29的转染效率显著高于增殖缺陷型腺病毒载体和脂质体载体(P<0.01);而对肝细胞的转染率则显著低于对结肠癌细胞株HT-29的转染(P<0.01)。与复制缺陷型腺病毒载体和脂质体载体比较,转染Ad-delE1b55kD-shRNA/Survivin-EGFP后,HT-29细胞中Survivin mRNA拷贝数及蛋白表达显著降低(P<0.01)。    结论    构建成功携带针对人Survivin的shRNA的肿瘤增殖型腺病毒载体Ad-delE1b55kD-shRNA/Survivin-EGFP,其能选择性地高效转染结肠癌细胞株HT-29并有效干扰Survivin,且较之增殖缺陷型腺病毒载体和脂质体载体具有更高的干扰效率。
Abstract:
Objective    To construct the conditionally replicating adenovirus vector Ad-delE1b55kD-shRNA/Survivin-EGFP that can transfects into HT-29 effectually and selectively and contains shRNA targeting to human Survivin gene.     Methods    EGFP gene and shRNA gene were inserted into pAd-delE1b55kD, then pAd-delE1b55kD-shRNA/Survivin-EGFP was obtained. The plasmid and pBHGE3 were cotransfected into HEK-293 cell to obtain the conditionally replicating adenovirus vector Ad-delE1b55kD-shRNA/Survivin-EGFP. Then DNA of the adenovirus vector was extracted and identified. The  transfection efficiency of the vector to HT-29 and LO2 was detected. The expression of Survivin mRNA and protein was detected by RT-PCR and Western blot.     Results    EGFP gene and shRNA gene targeting to human Survivin mRNA were inserted into conditionally replicating adenovirus vector successfully, proven by sequencing. The transfection efficiency to HT-29 of Ad-delE1b55kD-shRNA/Survivin-EGFP was significantly higher than replication defective adenovirus and liposome vector (P<0.01). After transfection of Ad-delE1b55kD-shRNA/Survivin-EGFP, mRNA and protein of Survivin gene in HT-29 cells were obviously reduced.     Conclusion    A conditionally replicating adenovirus vector was constructed and identified successfully. It can transfect to HT-29 and silence Survivin effectually and selectively.

参考文献/References:

王春毅, 傅仲学. Ad-delE1b55kD-shRNA/Survivin-EGFP的构建及鉴定[J]. 第三军医大学学报, 2007, 29(13):1293-1297.

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更新日期/Last Update: 2008-10-15