吉林大学学报(医学版) ›› 2019, Vol. 45 ›› Issue (05): 1177-1181.doi: 10.13481/j.1671-587x.20190535

• 方法学 • 上一篇    

一种高效稳定的磷酸钙转染293T细胞方法的建立及评价

华进1, 程志彬1,2, 林春霖1, 戴起宝1, 朱广伟1,2   

  1. 1. 福建医科大学附属第一医院胃肠外科二区, 福建 福州 350005;
    2. 福建医科大学消化道恶性肿瘤教育部重点实验室, 福建 福州 350005
  • 收稿日期:2019-01-19 发布日期:2019-10-08
  • 通讯作者: 朱广伟,主治医师,硕士研究生导师(Tel:0591-87982082,E-mail:zgwzsy@126.com) E-mail:zgwzsy@126.com
  • 作者简介:华进(1981-),男,福建省南平市人,主治医师,医学硕士,主要从事炎症性肠病基础与胃肠外科临床方面的研究。
  • 基金资助:
    国家自然科学基金资助课题(81702424,81872364);国家卫健委临床重点专科建设项目(普通外科)资助课题(2013);福建省科技厅自然科学基金资助课题(2018J05127);福建省卫健委中青年骨干项目资助课题(2018-ZQN-46);福建省教育厅中青年教师教育科研项目资助课题(JAT170239)

Establishment and evaluation of a highly efficient and stable calcium phosphate transfection method for 293T cells

HUA Jin1, CHENG Zhibin1,2, LIN Chunlin1, DAI Qibao1, ZHU Guangwei1,2   

  1. 1. Department of Gastrointestinal Surgery 2 Section, First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China;
    2. Key Laboratory of Gastrointestinal Cancer, Ministry of Education, Fujian Medical University, Fuzhou 350005 China
  • Received:2019-01-19 Published:2019-10-08

摘要: 目的:探讨2种磷酸钙转染法转染293T细胞的效果,建立一种实现高效稳定磷酸钙转染293T细胞的方法。方法:荧光显微镜观察采用2种磷酸钙转染方法(传统磷酸钙转染法和改良磷酸钙转染法)转染pCDH-GFP-3xflag-TRAF6质粒进入293T细胞的转染效率。采用Real-time PCR法和Western blotting法分别检测2种磷酸钙转染方法转染pCDH-GFP-3xflag-TRAF6质粒进入293T细胞后,肿瘤坏死因子受体相关因子6(TRAF6) mRNA和flag蛋白表达水平。结果:荧光显微镜下观察,与传统磷酸钙转染法比较,改良磷酸钙转染法转染pCDH-GFP-3xflag-TRAF6质粒进入293T细胞24和48 h后的转染效率明显升高(P<0.01);Real-time PCR法和Western blotting法检测,与传统转染方法比较,磷酸钙转染改良法转染pCDH-GFP-3xflag-TRAF6质粒进入293T细胞24和48 h后,TRAF6 mRNA和flag蛋白表达水平均明显升高(P<0.01)。结论:本研究建立的改良磷酸钙转染方法是一种高效、稳定的DNA转染方法。

关键词: 磷酸钙转染, 293T细胞, 肿瘤坏死因子受体相关因子6, flag蛋白

Abstract: Objective:To explore the effects of two kinds of calcium phosphate transfection methods in the 293T cells, and to establish the method of achieving high-efficiency and stable calcium phosphate transfection in the 293T cells. Methods:Fluorescence microscope was used to observe the transfection efficiencies of transfection of pCDH-GFP-3xflag-TRAF6 plasmid into the 293T cells by two kinds of calcium phosphate transfection methods (traditional calcium phosphate transfection method and improved calcium phosphate transfection method). Real-time PCR and Western blotting method were used to detect the expression levels of TRAF6 mRNA and flag protein in the 293T cells after transfection of pCDH-GFP-3xflag-TRAF6 plasmid by two kinds of calcium phosphate transfection methods. Results:Under fluorescence microscope, compared with traditional calcium phosphate transfection method, the transfection efficiencies of improved calcium phosphate transfection method 24 an 48 h after transfection of pCDH-GFP-3xflag-TRAF6 plasmid into the 293T cells were significantly increased (P<0.01). The Real-time PCR and Western blotting results showed that compared with traditional transfection method, the expression levels of TRAF6 mRNA and flag protein in the 293T cells 24 and 48 h after transfection of pCDH-GFP-3xflag-TRAF6 plasmid by calcicum phosphate transfection method were significantly increased(P<0.01). Conclusion:The improved calcium phosphate transfection method established in this reseach is a highly efficient and stable DNA transfection method.

Key words: calcium phosphate transfection, 293T cells, tumor necrosis factor receptor associated factor 6, flag protein

中图分类号: 

  • Q819