中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (49): 7418-7424.doi: 10.3969/j.issn.2095-4344.2016.49.018

• 基因病毒载体与动物模型 Viral vectors for gene transfer in animal models • 上一篇    下一篇

大鼠C-sis基因克隆及其真核表达载体的构建

孙国芳1,丁  浩2   

  1. 南昌大学第二附属医院,1心电诊断室,2消化内科,江西省南昌市  330006
  • 收稿日期:2016-10-13 出版日期:2016-11-30 发布日期:2016-11-30
  • 通讯作者: 丁浩,博士,主治医师,南昌大学第二附属医院消化内科,江西省南昌市330006
  • 作者简介:孙国芳,女,1982年生,山西省万荣县人,汉族,2011年南昌大学医学院毕业,硕士,主治医师,主要从事心血管疾病的基础研究。
  • 基金资助:

    国家自然科学基金资助项目(81300348);江西省青年科学基金资助项目(20151BAB215006);江西省青年科学基金资助项目(20132BAB215015)

Cloning of rat C-sis gene and construction of its eukaryotic expression vector

Sun Guo-fang1, Ding Hao2   

  1. 1Diagnosis Room of ECG, 2Department of Gastroenterology, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • Received:2016-10-13 Online:2016-11-30 Published:2016-11-30
  • Contact: Ding Hao, M.D., Attending physician, Department of Gastroenterology, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • About author:Sun Guo-fang, Master, Attending physician, Diagnosis Room of ECG, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81300348; the Science Foundation for the Youth of Jiangxi Province, No. 20151BAB215006, 20132BAB215015

摘要:

文章快速阅读:

文题释义:
基因克隆:是20世纪70年代发展起来的一项具有革命性的研究技术,可概括为分、切、连、转、选。“切”是指用序列特异的限制性内切酶切开载体DNA,或者切出目的基因;“连”是指用DNA连接酶将目的DNA同载体DNA连接起来,形成重组的DNA分子;“转”是指通过特殊的方法将重组的DNA分子送入宿主细胞中进行复制和扩增;“选”则是从宿主群体中挑选出携带有重组DNA分子的个体。最终目的在于通过相应技术手段,将目的基因导入宿主细胞,在宿主细胞内目的基因被大量的复制。
C-sis:是血小板衍生生长因子B链的编码基因。C-sis的基本功能是通过多种机制促使有丝分裂信号向胞内转导并促进细胞增殖。C-sis编码的蛋白血小板衍生生长因子B是一种较强的促有丝分裂源和化学诱导剂,可刺激间胚叶来源细胞的分裂、增殖,对血管的再生及创伤愈合有良好的促进作用。故C-sis具有促进细胞增殖并抑制凋亡,进而促进组织修复的功能。
摘要
背景:
原癌基因C-sis具有促进细胞增殖并抑制凋亡,进而促进组织修复的功能。假设C-sis可能在受损肝组织的修复和暴发性肝衰竭的治疗中发挥积极作用。
目的:构建pcDNA3.1/C-sis真核表达载体,检测其在大鼠正常肝细胞株BRL细胞和在体大鼠肝脏细胞中的表达。
方法:通过RT-PCR的方法克隆C-sis基因的选全长编码序列,构建pcDNA3.1/C-sis真核表达载体。鉴定无误后经脂质体介导转染到BRL细胞中,并通过将质粒注入尾静脉后导入大鼠肝脏。最后通过荧光定量PCR和Western Blot鉴定其在BRL细胞和在体大鼠肝脏细胞中的表达。
结果与结论:①成功克隆了C-sis基因全长编码区;测序证明pcDNA3.1/C-sis重组真核表达载体构建成功;②将其转染至BRL细胞和在体大鼠肝脏,可使C-sis表达升高;③实验结果为后续研究C-sis基因对大鼠暴发性肝衰竭的影响提供了先决条件。

中国组织工程研究杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程
ORCID: 0000-0001-8793-9069(孙国芳)

关键词: 实验动物, 基因病毒载体相关因子模型, 基因克隆, C-sis, 大鼠, 转染, 真核表达载体, 酶切, 脂质体, 鼠尾静脉, 国家自然科学基金

Abstract:

BACKGROUND: C-sis proto-oncogene can promote tissue repair by inducing cell proliferation and inhibiting cell apoptosis. Therefore, C-sis may play a positive role in the repair of damaged liver tissue and the treatment of fulminant hepatic failure.
OBJECTIVE: To construct pcDNA3.1/C-sis eukaryotic expression vector and detect its expression in BRL cells (the normal liver cells of rats) and rat liver cells in vivo.
METHODS: The full-length coding sequence of C-sis gene was cloned through real time-PCR. pcDNA3.1/C-sis eukaryotic expression vector was constructed and sequenced, followed by transfected into BRL cells using liposome and injected into the rat liver via tail vein. Finally, its expression in BRL cells and rat liver cells in vivo was identified by fluorescence quantitative PCR and western blotting.
RESULTS AND CONCLUSION: (1) The full length of encoding region of C-sis gene was successfully cloned. Sequencing proved that pcDNA3. 1/C-sis recombinant eukaryotic expression vector was constructed successfully. (2) The expression of C-sis was increased after transfected into BRL cells and rat liver. (3) These results provide basis for the subsequent study of the effect of C-sis gene on fulminant hepatic failure in rats.

中国组织工程研究杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程

Key words: Models, Animal, Genes, Liposomes, Transfection, Tissue Engineering

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