去甲基化酶腺病毒载体构建及其在人颌下腺细胞中的表达

李莹; 刘淑丹; 杨彦春; 董世武; 熊剑; 李方; 周继祥

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去甲基化酶腺病毒载体构建及其在人颌下腺细胞中的表达

论著 | 更新时间：2025-01-15

- 去甲基化酶腺病毒载体构建及其在人颌下腺细胞中的表达
- Cloning and expression of methyl-CpG binding domain 2 gene in human submandibular gland cell line by adenovirus vector transfection
- 陆军军医大学学报 2011年33卷第22期页码：2349-2352
- 作者机构：
  
  1. 第三军医大学:西南医院口腔科,基础医学部人体解剖学教研室
  2. 宁夏医科大学总医院干细胞研究所
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： R394.2;R394-33
- 纸质出版日期：2011，
  
  网络出版日期：2011-11-30，
- 稿件说明：
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李莹, 刘淑丹, 杨彦春, 等. 去甲基化酶腺病毒载体构建及其在人颌下腺细胞中的表达[J]. 陆军军医大学学报, 2011,33(22):2349-2352.

LI YING, LIU SHUDAN, YANG YANCHUN, et al. Cloning and expression of methyl-CpG binding domain 2 gene in human submandibular gland cell line by adenovirus vector transfection. [J]. Journal of army medical university, 2011, 33(22): 2349-2352.
李莹, 刘淑丹, 杨彦春, 等. 去甲基化酶腺病毒载体构建及其在人颌下腺细胞中的表达[J]. 陆军军医大学学报, 2011,33(22):2349-2352. DOI：

LI YING, LIU SHUDAN, YANG YANCHUN, et al. Cloning and expression of methyl-CpG binding domain 2 gene in human submandibular gland cell line by adenovirus vector transfection. [J]. Journal of army medical university, 2011, 33(22): 2349-2352. DOI：

摘要

目的构建去甲基化酶（methyl-CpG binding domain 2，MBD2）基因腺病毒载体，并观测其在人颌下腺（human submandibular gland，HSG）细胞中的表达。方法以HSG细胞总RNA为模板，RT-PCR法扩增MBD2基因全长编码序列，克隆入载体pMD18-T后，亚克隆入pAdTrack-CMV腺病毒穿梭载体，构建pAdTrack-MBD2重组体。该重组体与腺病毒骨架质粒pAdEasy-1于BJ5183菌中同源重组，产生重组腺病毒质粒Ad-MBD2，该质粒经293细胞包装，获得具有感染力的Ad/MBD2 重组腺病毒颗粒，将该病毒颗粒感染HSG细胞，倒置显微镜检测转染后HSG细胞生长变化及MBD2在其中的表达等情况。图像分析法计算感染效率。RT-PCR法检测MBD2基因在该细胞中的表达变化。结果成功克隆到909 bp大小的MBD2基因，构建了其腺病毒载体Ad/MBD2，该腺病毒载体经293细胞成功包装，并获具感染力的Ad/MBD2重组腺病毒颗粒，其感染效率约70%。感染的HSG高表达MBD2。结论成功克隆到MBD2基因，构建了其重组腺病毒载体Ad/MBD2，并证实了其感染HSG细胞的有效表达。

Abstract

Objective To construct the adenovirus vector carrying methyl-CpG binding domain 2 (MBD2) gene and express this gene in human submandibular gland (HSG）cell line. Methods cDNA fragment encoding human MBD2 gene was amplified by reverse transcriptase-polymerase chain reaction (RT-PCR) with the total mRNA isolated from HSG cells as template. The PCR amplified product was first cloned into pMD18-T vector

and then subcloned into the shuttle vector pAdTrack-CMV in order to construct the recombinant plasmids pAdTrack-MBD2

which homologously recombinated with the adenoviral backbone vectors Adeasy-1 in BJ5183 bacterial cells

so as to generate recombinant adenoviral plasmids Ad-MBD2. The recombinant adenoviruses Ad/MBD2

which were employed to infect HSG cells

were generated by transfecting the recombinant adenoviral DNA into 293 cells. The growth of transfected HSG cells and the expression of enhanced green fluorescent protein (EGFP) were observed by invert microscopy. Image analysis was employed to calculate the transfection efficiency. Subsequently the expression of MBD2 in transfected HSG cells was tested by RT-PCR. Results Human MBD2 gene fragment

with a length of 909 bp

was successfully cloned

and recombinant adenoviral vector of Ad/MBD2 was constructed. The recombinant adenoviruses Ad/MBD2 were ge-nerated by transfecting the recombinant adenoviral DNA into 293 cells. Adenoviral virus particle which possessed infectious competent was made from Ad/MBD2. Its transfection efficiency was about 70%. HSG cells expressed MBD2 gene obviously after infection. Conclusion Human MBD2 gene is successfully cloned

and recombinant adenoviral vector of Ad/MBD2 is constructed. The valid expression of MBD2 gene in HSG cells has been confirmed.

关键词

去甲基化酶基因重组腺病毒颗粒人颌下腺细胞

Keywords

gene of methyl-CpG binding domain 2recombinant adenoviruseshuman submandibular gland cell line

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