中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (1): 49-53.doi: 10.3969/j.issn.2095-4344.2015.01.009

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

骨髓间充质干细胞移植炎症性肠上皮组织中Wnt/β-catenin信号分子的表达

邢艳粉1,解绪红1,苑召虎1,崔业佳1,李瑜元2,聂玉强2,魏亚明1   

  1. 广州医科大学附属广州市第一人民医院,1输血科,2消化科,临床分子医学及分子诊断实验室,广东省广州市  510180
  • 修回日期:2014-12-15 出版日期:2015-01-01 发布日期:2015-01-01
  • 通讯作者: 魏亚明,博士,教授,博士生及研究生导师,广州医科大学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:邢艳粉,女,1990年生,河南省汝州市人,汉族,2015年广州医科大学毕业,硕士,主要从事分子诊断学与细胞治疗。
  • 基金资助:

    国家自然科学基金(81070385);广州市重大民生专项基金(201300000100)

The expression of Wnt/beta-catenin signaling molecule in inflammatory bowel diseases treated with bone marrow mesenchymal stem cell transplantation

Xing Yan-fen1, Xie Xu-hong1, Yuan Zhao-hu1, Cui Ye-jia1, Li Yu-yuan2, Nie Yu-qiang2, Wei Ya-ming1   

  1. 1Department of Blood Transfusion, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou 510180, Guangdong Province, China; 2Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Department of Gastroenterology, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou 510180, Guangdong Province, China
  • Revised:2014-12-15 Online:2015-01-01 Published:2015-01-01
  • Contact: Wei Ya-ming, M.D., Professor, Doctoral and Master’s supervisor, Department of Blood Transfusion, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou 510180, Guangdong Province, China
  • About author:Xing Yan-fen, Master, Department of Blood Transfusion, Guangzhou First People’s Hospital, Guangzhou Medical University, Guangzhou 510180, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81070385; Guangzhou People’s Livelihood Special Fund, No. 201300000100

摘要:

背景:Wnt/β-catenin信号通路是干细胞调控中最关键的信号通路之一,参与调控细胞的增殖与分化。
目的:观察Wnt/β-catenin信号通路中主要信号分子在骨髓间充质干细胞移植修复炎性肠疾病过程中的表达状况。
方法:采用三硝基苯磺酸灌肠法制作SD大鼠炎症性肠病模型,并将绿色荧光蛋白标记的骨髓间充质干细胞经尾静脉注入体内,以注射生理盐水为移植正常对照,于移植第14和28天处死大鼠,取其大肠组织,采用qRT-PCR的方法进行检测Wnt/β-catenin信号通路中信号分子的表达情况。
结果与结论:qRT-PCR检测结果显示,wnt3a和β-catenin在炎症性肠组织中相对表达量明显增加(P < 0.05),而c-myc的表达量没有明显变化(P > 0.05)。骨髓间充质干细胞移植修复后,wnt3a、β-catenin和c-myc的表达量都显著下降(P < 0.05)。结果表明Wnt/β-catenin信号通路在炎症性肠病以及移植骨髓间充质干细胞后的修复过程中起着重要的作用,协助骨髓间充质干细胞向肠上皮细胞分化,促进肠炎症的好转,并修复炎症区域,恢复肠组织的稳态。


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, 骨髓间充质干细胞, Wnt/β-catenin信号通路, 国家自然科学基金

Abstract:

BACKGROUND: The Wnt/β-catenin signaling pathway is one of the most important signaling pathways in stem cell regulation, which is involved in regulation of cell proliferation and differentiation.
OBJECTIVE: To investigate the expression of Wnt/β-catenin main signaling molecule in inflammatory bowel tissues treated with bone marrow mesenchymal stem cell transplantation.
METHODS: 2,4,6-Trinitrobenzene sulfonic acid was used for establishing inflammatory bowel diseases rat models. Bone marrow mesenchymal stem cells labeled with green fluorescent protein were transplanted into rat models via tail vein. Normal saline was injected as control. The expression of Wnt/β-catenin signaling molecule was detected in the large intestine tissue of inflammatory bowel disease rat models by quantitative RT-PCR at 14 and 28 days after transplantation.
RESULTS AND CONCLUSION: Real-time quantitative PCR results showed that the expression of Wnt3a and  β-catenin in the inflammatory bowel tissue increased significantly (P < 0.05), while no difference in the expression of c-myc (P > 0.05). The expressions of Wnt3a, β-catenin and c-myc in the transplantation group were significantly lower than those in the control group after transplantation (P < 0.05). These findings indicate that the Wnt/β-catenin signaling pathway plays important roles in inflammatory bowel disease and repair after bone marrow mesenchymal stem cell transplantation, while this pathway may promote stem cells differentiating into intestinal epithelium, promote recovery from inflammatory bowel disease, repair inflammatory area, and restore intestinal tissue homeostasis.


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: Bone Marrow, Mesenchymal Stem Cell Transplantation, Intestinal Diseases, Signal Transduction

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