中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (29): 4636-4641.doi: 10.3969/j.issn.2095-4344.2014.29.008

• 血管组织构建 vascular tissue construction • 上一篇    下一篇

体外构建内皮抑素基因真核表达载体抑制血管生成

邵佳甲1,于 音2,姜 涛3   

  1. 1长春职业技术学院食品与生物技术分院,吉林省长春市 130033;吉林大学白求恩第三医院,2神经外二科,3血管外科,吉林省长春市 130033
  • 修回日期:2014-06-26 出版日期:2014-07-09 发布日期:2014-07-09
  • 通讯作者: 于音,博士,主治医师,吉林大学白求恩第三医院神经外科,吉林省长春市 130033
  • 作者简介:邵佳甲,女,1982年生,吉林省长春市人,汉族,2008年吉林农业大学生物工程专业毕业,硕士,主要从事制药等相关生物技术的教学与研究。

Construction of pcDNA3-Endo eukaryon expression plasmid and angiogenesis inhibition in vitro

Shao Jia-jia1, Yu Yin2, Jiang Tao3   

  1. 1School of Food Production Technology and Biotechnology, Changchun Vocational Institute of Technology, Changchun 130033, Jilin Province, China; 2Department of Neurosurgery, the Third Affiliated Hospital (China-Japan Union Hospital of Jilin University), Changchun 130033, Jilin Province, China; 3Department of Vascular Surgery, the Third Affiliated Hospital (China-Japan Union Hospital of Jilin University), Changchun 130033, Jilin Province, China
  • Revised:2014-06-26 Online:2014-07-09 Published:2014-07-09
  • Contact: Yu Yin, M.D., Attending physician, Department of Neurosurgery, the Third Affiliated Hospital (China-Japan Union Hospital of Jilin University), Changchun 130033, Jilin Province, China
  • About author:Shao Jia-jia, Master, School of Food Production Technology and Biotechnology, Changchun Vocational Institute of Technology, Changchun 130033, Jilin Province, China

摘要:

背景:胶质瘤的根除治疗至今仍是一大难题,抗血管生成治疗胶质瘤有望成为新的有效途径。

目的:证实内皮抑素在体外对血管生长的抑制作用,为今后利用其抑制肿瘤生长奠定实验室基础。
方法:取Wistar大鼠肝脏,提取mRNA后利用RT-PCR获取内皮抑素cDNA片段。碱裂解法小量提取质粒pcDNA3。重组质粒pcDNA3-Endo的构建。重组pcDNA3-Endo真核表达载体转染骨髓间充质干细胞。RT-PCR及Western Blot检测内皮抑素基因的表达。MTT法检测ECV-304细胞增殖抑制实验。体外实验共分成4个组:重组质粒组、空载质粒组、脂质体对照组及空白对照组。

结果与结论:成功构建pcDNA3-Endo重组真核表达质粒,pcDNA3-Endo质粒能在体外有效转录并分泌内皮抑素基因,转染了外源pcDNA3-Endo质粒的ECV-304细胞增殖明显受到抑制。结果提示内皮抑素基因能在体外有效抑制血管内皮细胞的增殖。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 血管内皮细胞, 内皮抑素, 血管生成, 人脐静脉血管内皮细胞, 间充质干细胞, 质粒, 转染

Abstract:

BACKGROUND: The eradication therapy of glioma is the major problem, and anti-angiogenesis therapy is a potential treatment of glioma.

OBJECTIVE: To confirm the inhibiting effect of endostatin on angiogenesis in vitro, and to lay the foundation in inhibiting the growth of tumor by endostatin in the future.
METHODS: Endostatin mRNA was extracted from the liver of Wistar rats by Trizol and endostatin cDNA was synthesized by RT-PCR. Endostatin cDNA and pcDNA3 were connected and pcDNA3-Endo recombined plasmid was constructed successfully. The recombinant pcDNA3-Endo was transfected into bone marrow mesenchymal stem cells by Lipofectamine. The expression of endostatin was identified by RT-PCR and western blot analysis. Endostatin proteinum activity was detected by ECV-304 cell proliferation inhibition experiment using MTT assay. The in vitro experiments were divided into four groups: recombinant plasmid group, vector plasmid group, liposome control group and blank control group.
RESULTS AND CONCLUSION: PcDNA3-Endo eukaryon expression plasmid was constructed successfully. Endostatin gene can be transcribed and expressed effectively in vitro by pcDNA3-Endo plasmid. The growth of ECV-304 cell was inhibited obviously by pcDNA3-Endo. The growth of vascular endothelial cells can be inhibited obviously by endostatin gene.


中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: endostatins, endothelial cells, neovascularization, physiologic, mesenchymal stem cells

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