中国畜牧兽医

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胆汁酸膜受体TGR5真核表达载体的构建及在细胞中的表达

史琳凯1,2,刘倩1,2,张子英1,2,刘畅1,王旭东1,2,丁月霞1,2,李培锋1,2   

  1. 1.内蒙古农业大学兽医学院,内蒙古呼和浩特  0100182.农业部动物疾病临床诊疗技术重点实验室,内蒙古呼和浩特  010018

  • 收稿日期:2013-12-16 出版日期:2014-05-20 发布日期:2014-06-25
  • 通讯作者: 李培锋。E-mail: lpfneimeng@163.com
  • 作者简介:史琳凯(1988—),女,内蒙古人,硕士生,研究方向:兽医药理学与毒理学。
  • 基金资助:

    国家自然科学基金(31272605)。

Construction of Bile Acid Receptor TGR5 Eukaryotic Expression Vector and its Expression in Cell

SHI Lin-kai1,2, LIU Qian1,2, ZHANG Zi-ying1,2, LIU Chang1, WANG Xu-dong1,2, DING Yue-xia1,2, LI Pei-feng1,2   

  1.  (1. College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010018, China; 2. Key Laboratory of Clinical Diagnosis and Treatment Techniques in Animal Disease, Ministry of Agriculture, Hohhot 010018, China)

  • Received:2013-12-16 Online:2014-05-20 Published:2014-06-25

摘要: 试验旨在构建胆汁酸膜受体TGR5真核表达载体,转染293T细胞并在其中表达。用RT-PCR技术从胎盘组织中得到TGR5基因,克隆至真核表达载体pCMV-EGFP中。双酶切和测序鉴定正确后,将pCMV-EGFP-TGR5瞬时转染293T细胞,并采用实时荧光定量PCR和Western blotting技术检测TGR5的表达。结果显示,本试验构建了TGR5真核表达载体pCMV-EGFP-TGR5;转染293T细胞后,荧光显微镜观察到绿色荧光表达;实时荧光定量PCR检测TGR5表达量显著增加;Western blotting结果显示有目的蛋白表达。结果表明,真核表达载体pCMV-EGFP-TGR5构建成功,转染293T细胞后在基因、蛋白水平上均表达TGR5受体。

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Abstract: The study was aimed to construct a membrane-bound bile acid receptor TGR5 eukaryotic expression vector, which transfected into 293T cell, and expressed in 293T cell. Total RNA was extracted from placenta tissue, and RT-PCR was performed to obtain the TGR5 cDNA, which was inserted into the eukaryotic expression vector pCMV-EGFP. The novel constructed plasmid was confirmed by restriction enzyme digestion and DNA sequencing, then 293T cell was transfected with pCMV-EGFP-TGR5, Real-time PCR and Western blotting were amplified to determine the expression of TGR5. The result showed that the eukaryotic expression vector of pCMV-EGFP-TGR5 was constructed successfully. Green fluorescent was examined under fluorescent microscope, and the expression of TGR5 was increased significantly in 293T cells. The eukaryotic expression vector pCMV-EGFP-TGR5 was constructed successfully and TGR5 was expressed in mRNA and protein levels in 293T cell after transfection.

Key words: font-size: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">TGRfont-size: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">5 gene; clone; construction of eukaryotic expression vector