中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (25): 4035-4040.doi: 10.3969/j.issn.2095-4344.0911

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

Tet-On调控NICD稳定表达的骨髓间充质干细胞治疗肾缺血再灌注损伤

习小庆1,胡红林1,邹 丛2,方周青3,匡仁锐1,叶真逢1,黄雅为1   

  1. 1南昌大学第二附属医院泌尿外科,江西省南昌市 330006;2南昌大学第四附属医院内分泌科,江西省南昌市 330003;3江西省彭泽县人民医院外科,江西省九江市 332700
  • 修回日期:2018-05-15 出版日期:2018-09-08 发布日期:2018-09-08
  • 通讯作者: 胡红林,博士,副主任医师,副教授,南昌大学第二附属医院泌尿外科,江西省南昌市 330006
  • 作者简介:习小庆,男,1963年生,江西省吉安县人,汉族,1994年江西医学院毕业,硕士,主任医师,教授,主要从事泌尿系疾病的基础与临床研究。
  • 基金资助:

    国家自然科学基金项目(81360110)

Bone marrow mesenchymal stem cells stably expressing NICD which is controlled by Tet-On system in the treatment of renal ischemia-reperfusion injury

Xi Xiao-qing1, Hu Hong-lin1, Zou Cong2, Fang Zhou-qing3, Kuang Ren-rui1, Ye Zhen-feng1, Huang Ya-wei1   

  1. 1Department of Urology, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China; 2Department of Endocrinology, the Fourth Affiliated Hospital of Nanchang University, Nanchang 330003, Jiangxi Province, China; 3Department of Surgery, the People’s Hospital of Pengze County, Jiujiang 332700, Jiangxi Province, China
  • Revised:2018-05-15 Online:2018-09-08 Published:2018-09-08
  • Contact: Hu Hong-lin, M.D., Associate chief physician, Associate professor, Department of Urology, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • About author:Xi Xiao-qing, Master, Chief physician, Professor, Department of Urology, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81360110

摘要:

文章快速阅读:

文题释义:
Tet-on基因表达系统:
是目前比较理想的真核基因表达调控系统,具有严密性、特异性、高效性等优点,已广泛应用于细胞、转基因鼠的基因功能及基因治疗等方面的研究。
NICD基因:是Notch信号通路的重要组成部分,位于胞内段功能区,对于相邻细胞间的信号转导起到非常重要的作用。

 

摘要
背景:
肾缺血再灌注损伤是诱发急性肾损伤的主要原因。骨髓间充质干细胞治疗肾缺血再灌注损伤一直是研究的热点。
目的:探讨Tet-On系统调控NICD稳定表达的骨髓间充质干细胞(NICD-Tet-BMSCs)对肾缺血再灌注损伤的修复作用。
方法:采用密度梯度离心法分离培养大鼠骨髓间充质干细胞,体外构建Tet-On系统强力霉素调控NICD稳定表达的骨髓间充质干细胞,然后将此细胞移植至肾缺血再灌注损伤大鼠体内,术后检测血清肌酐水平、肾组织中骨髓间充质干细胞分布以及血管内皮生长因子和肿瘤坏死因子α表达变化。
结果与结论:①NICD蛋白在NICD-Tet-BMSCs中稳定表达并受强力霉素调控;②与肾缺血再灌注损伤组相比,NICD-Tet-BMSCs组大鼠术后血清肌酐水平明显降低(P < 0.05);③外源性骨髓间充质干细胞在NICD-Tet-BMSCs组大鼠肾组织中增殖持续时间更长;④NICD-Tet-BMSCs组肾组织中血管内皮生长因子蛋白表达升高,肿瘤坏死因子α蛋白表达降低,差异有显著性意义(P < 0.05);⑤体外能够成功构建Tet-On系统调控NICD稳定表达的大鼠骨髓间充质干细胞,此细胞可促进大鼠肾缺血再灌注损伤的修复。

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
ORCID: 0000-0001-9885-7405(胡红林)

关键词: 骨髓间充质干细胞, NICD, Tet-On, 强力霉素, 肾缺血再灌注损伤, 肌酐, 血管内皮生长因子, 肿瘤坏死因子α, 国家自然科学基金

Abstract:

BACKGROUND: Renal ischemia-reperfusion injury (IRI) is the main cause of acute kidney injury (AKI). The treatment of renal IRI by bone marrow mesenchymal stem cells (MSC) has always been an issue of concern.
OBJECTIVE: To construct BMSCs stably expressing NICD controlled by Tet-On system in vitro (NICD-Tet-BMSCs), and to explore its therapeutic effect on renal IRI.
METHODS: We separated and cultured rat BMSCs by density gradient centrifugation, and constructed NICD-Tet-BMSCs in vitro. The cells were then transplanted to renal IRI rats. Serum creatinine level, the distribution of BMSCs in renal tissue and the expression of vascular endothelial growth factor and tumor necrosis factor α in the kidney were detected thereafter.
RESULTS AND CONCLUSION: NICD protein stably expressed in the NICD-Tet-BMSCs which was regulated by the doxycycline. Compared with the control group, the renal IRI rats undergoing NICD-Tet-BMSCs transplantation had significantly lower serum creatinine levels (P < 0.05), sustained cell proliferation, increased vascular endothelial growth factor protein expression and decreased tumor necrosis factor α protein expression in the kidney (P < 0.05). Therefore, NICD-Tet-BMSCs can be successfully established in vitro, and promote the reparation of renal IRI in rats.

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

Key words: Bone Marrow, Mesenchymal Stem Cells, Kidney, Reperfusion Injury, Tissue Engineering

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