中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (28): 4555-4562.doi: 10.3969/j.issn.2095-4344.2014.28.021

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

间充质干细胞移植修复炎性肠组织过程中的主导基因筛选

曹燕雯1,魏亚明2,李瑜元1,聂玉强1,吴  倩1   

  1. 广州医学院附属广州市第一人民医院,1消化科,广州市临床医学研究所,2输血科,广东省广州市  510180
  • 出版日期:2014-07-02 发布日期:2014-07-02
  • 通讯作者: 魏亚明,博士后,主任医师,广州医学院附属广州市第一人民医院输血科, 广东省广州市 510180
  • 作者简介:曹燕雯,女,1986年生,广东省广州市人,汉族,2013年广州医科大学毕业,硕士,主要从事炎症性肠病方面研究。
  • 基金资助:

    国家自然科学基金(81070385);留学回国人员科研启动基因(教外司留{2012}940号);广州市重大民生专项基金(201300000100)

Screening main genes during mesenchymal stem cell transplantation in repair of inflammatory bowel tissue

Cao Yan-wen1, Wei Ya-ming2, Li Yu-yuan1, Nie Yu-qiang1, Wu Qian1   

  1. 1 Department of Gastroenterology, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou Municipal Clinical Medical Institute, Guangzhou 510180, Guangdong Province, China; 2 Department of Blood Transfusion, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou 510180, Guangdong Province, China
  • Online:2014-07-02 Published:2014-07-02
  • Contact: Wei Ya-ming, M.D., Chief physician, Department of Blood Transfusion, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou 510180, Guangdong Province, China
  • About author:Cao Yan-wen, Master, Department of Gastroenterology, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou Municipal Clinical Medical Institute, Guangzhou 510180, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81070385; the Scientific Research Project of Returned Overseas Students (Jiaowaisiliu 2012), No. 940; the Major People’s Livelihood Project of Guangzhou City, No. 201300000100

摘要:

背景:前期研究已证明间充质干细胞可定植于炎症性肠黏膜修复炎症性肠组织。
目的:应用表达谱芯片技术研究间充质干细胞移植修复前后大鼠炎症性大肠组织的差异基因表达情况,初步揭示与间充质干细胞定植、分化、修复炎症性肠组织过程相关的主导基因。
方法:健康SD大鼠随机分为2组:移植实验组用三硝基苯磺酸灌肠制作炎症性肠病模型,造模后24 h经尾静脉注入绿色荧光蛋白标记的间充质干细胞;对照组以生理盐水代替三硝基苯磺酸同法灌肠处理。于移植后28 d取移植实验组和对照组大肠组织,利用基因芯片技术筛选移植实验组和对照组的差异表达基因。
结果与结论:对照组和移植实验组大肠组织全基因组表达谱芯片结果有差异性表达的基因共388个(P < 0.05,FC>2),其中表达上调基因191个、表达下调基因197个,主要与炎症反应、免疫反应和细胞分化3个方面有关。前10位显著上调和下调的差异基因(共20条)中,与炎症反应相关的有3个,与免疫反应相关的有3个,与干细胞分化相关的有2个。388个差异基因主要涉及33条信号通路(P < 0.05),其中与炎症反应相关的有6条,与免疫反应相关的有8条,与干细胞分化相关的有5条。结果可见利用全基因组表达谱基因芯片的方法初步筛选了间充质干细胞修复炎症性肠组织的主要相关基因。


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

关键词: 干细胞, 移植, 炎症性肠病, 间充质干细胞, 表达谱基因芯片, 国家自然科学基金

Abstract:

BACKGROUND: Previous studies have verified that mesenchymal stem cells could be transplanted into inflammatory bowel mucosa to repair inflammatory bowel tissue.
OBJECTIVE: To observe the differential gene expression in large intestine before and after mesenchymal stem cell transplantation in repair of inflammatory bowel tissue of rats using microarray technology, and to primarily discover the main genes during mesenchymal stem cell transplantation, differentiation, and reparation in inflammatory colorectal tissue region.
METHODS: Healthy Sprague-Dawley rats were randomly divided into two groups. Experimental rat models of inflammatory bowel disease were established using trinitrobenzene sulfonic acid via enema. At 24 hours after model establishment, green fluorescent protein-labeled mesenchymal stem cells were infused via the caudal vein. The control group was treated with physiological saline by enema, instead of trinitrobenzene sulfonic acid. At 28 days, large intestine was obtained from the experimental group and control group. Differentially expressed genes were screened in the experimental and control groups using microarray technique.
RESULTS AND CONCLUSION: The microarray analysis results showed that there were 388 differential genes in the control and experimental groups (P < 0.05, FC > 2), in which 191 were up-expressed, and 197 were down-expressed. All of these genes were mainly involved in inflammatory reaction, immune reaction and cell differentiation. In the top 10 up-regulation and down-regulation differential genes (totally 20 genes), 3 genes were involved in inflammation, 3 genes were involved in immune reaction, and 2 genes were related to stem cell differentiation. In the 388 genes, 33 were related to signaling pathways (P < 0.05), 6 related to inflammation, 8 related to immunity, and 5 related to stem cell differentiation. Results suggested that the main genes involved in mesenchymal stem cells in repair of inflammatory bowel tissue were primarily screened using gene expression microarray technique.


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

Key words: mesenchymal stem cell transplantation, Crohn disease, intestine, large, gene expression profiling, microchip analytical procedures

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