中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (46): 8024-8029.doi: 10.3969/j.issn.2095-4344.2013.46.008

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

Cdx2反转录病毒载体的构建及转染膀胱上皮细胞的研究

林明恩1,邓毕华2,吕夷松2,荣  禄2,姚友生2   

  1. 1汕头大学医学院第一附属医院泌尿外科,广东省汕头市  515041;2中山大学附属第二医院泌尿外科,广东省广州市   510120
  • 出版日期:2013-11-12 发布日期:2013-11-30
  • 通讯作者: 姚友生,博士,教授,中山大学附属第二医院泌尿外科,广东省广州市 510120 yao2146@yeah.com
  • 作者简介:林明恩☆,男,1980年生,广东省揭阳市人,汉族,2012年中山大学毕业,博士,主治医师,主要从事下尿路疾病和泌尿系肿瘤的研究。 me_lin20@163.com
  • 基金资助:

    广东省医学科研基金立项课题(B2013267)*

Construction of human caudal type homeobox transcription factor 2 retrovoral vector and transfection of urothelium cells

Lin Ming-en1, Deng Bi-hua2, Lü Yi-song2, Rong Lu2, Yao You-sheng2   

  1. 1 Department of Urology, the First Affiliated Hospital of Shantou University Medical College, Shantou  515041, Guangdong Province, China; 2 Department of Urology, the Second Affiliated Hospital of Sun Yat-sen University, Guangzhou  510120, Guangdong Province, China
  • Online:2013-11-12 Published:2013-11-30
  • Contact: Yao You-sheng, M.D., Professor, Department of Urology, the Second Affiliated Hospital of Sun Yat-sen University, Guangzhou 510120, Guangdong Province, China yao2146@yeah.com
  • About author:Lin Ming-en☆, M.D., Attending physician, Department of Urology, the First Affiliated Hospital of Shantou University Medical College, Shantou 515041, Guangdong Province, China me_lin20@163.com
  • Supported by:

    the Medical Science Research Foundation of Guangdong Province, No. B2013267*

摘要:

背景:尾侧型同源转录因子2在消化道尤其是小肠与结肠上皮的发育中起到关键作用。
目的:构建尾侧型同源转录因子2反转录病毒表达载体pLNCX2- Cdx2,观察pLNCX2- Cdx2体外转染对人膀胱上皮细胞发生肠上皮化生的作用。
方法:应用基因重组技术将人尾侧型同源转录因子2cDNA克隆到反转录病毒载体pLXSN2,酶切鉴定,包装到PA317细胞中。转染人膀胱尿路上皮细胞,应用荧光PCR及Western blot检测尾侧型同源转录因子2以及绒毛蛋白、LI-cadherin的表达情况。
结果与结论:pLNCX2 -Cdx2成功构建;细胞转染后尾侧型同源转录因子2的mRNA及蛋白水平表达明显增加;尾侧型同源转录因子2的过表达明显激活了绒毛蛋白与LI-cadherin的表达;转染后细胞可出现肠细胞样特征改变。结果提示体外尾侧型同源转录因子2过表达可使膀胱上皮细胞发生尾侧型同源转录因子2激活并产生肠上皮分化,从而诱导腺性膀胱炎发生。

关键词: 组织构建, 组织构建细胞学实验, 尾侧型同源转录因子2, 绒毛蛋白, 肝肠钙粘连蛋白, 肠上皮化生, 膀胱上皮细胞, LI-cadherin, 尿路上皮, 腺性膀胱炎, 省级基金

Abstract:

BACKGROUND: Caudal type homeobox transcription factor 2 plays an important role in the development of epithelium in digestive tract, especially the small intestine and colon. 
OBJECTIVE: To construct the retroviral expression vector of pLNCX2-caudal type homeobox transcription factor 2, and to observe the effect of in vitro transfection of pLNCX2-caudal type homeobox transcription factor 2 in intestinal metaplasia.
METHODS: Gene recombinant technology was employed to clone human caudal type homeobox transcription factor 2 gene to the retroviral expression vector of pLNCX2, then identified with enzyme digestion and sequencing and packed to the PA317 cells. The plasmids were transfect in urothelium cells, real-time PCR and western blot were used to detect the expressions of caudal type homeobox transcription factor 2, villin and liverintestin- cadherin at the protein and mRNA levels.
RESULTS AND CONCLUSION: The retroviral vector pLNCX2-caudal type homeobox transcription factor 2 was successfully constructed. The levels of caudal type homeobox transcription factor 2 protein and mRNA expressions in bladder urothelium cell transfected with pLNCX2-caudal type homeobox transcription factor 2 were higher than that in control. And the over-expression of caudal type homeobox transcription factor 2 could up-regulate the levels of villin and liverintestin-cadherin expressions. Interestingly, specific changes of intestine-like cells were seen in the bladder urothelium cells transfected by pLNCX2-caudal type homeobox transcription factor 2. Over-expression of caudal type homeobox transcription factor 2 can activate the caudal type homeobox transcription factor 2 of urothelium cells and induce intestinal epithelial differentiation, thus inducing the development of cystitis glanduaris.

Key words: transcription factor, epithelial cells, chorionic villi, metaplasia

中图分类号: