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中华细胞与干细胞杂志(电子版) ›› 2017, Vol. 07 ›› Issue (01) : 18 -22. doi: 10.3877/cma.j.issn.2095-1221.2017.01.004

所属专题: 文献

论著

干细胞对环孢素肾病大鼠肾组织转化生长因子β1的影响
张勇1, 张巍2, 张剑平2, 卓文利2, 吴卫真2, 谭建明2,()   
  1. 1. 200433 上海,第二军医大学
    2. 350025 福州,南京军区福州总医院泌尿外科
  • 收稿日期:2016-09-30 出版日期:2017-02-01
  • 通信作者: 谭建明
  • 基金资助:
    福建省重大专项课题(2012YZ0001)

Effect of mesenchymal stem cells on transforming growth factor-β1 in renal tissue of chronic cyclosporine nephropathy in rats

Yong Zhang1, Wei Zhang2, Jianping Zhang2, Wenli Zhuo2, Weizhen Wu2, Jianming Tan2,()   

  1. 1. the Second Military Medical University, Shanghai 200433, China
    2. Department of Urology, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350025, China
  • Received:2016-09-30 Published:2017-02-01
  • Corresponding author: Jianming Tan
  • About author:
    Corresponding author:Tan Jianming, Email:
引用本文:

张勇, 张巍, 张剑平, 卓文利, 吴卫真, 谭建明. 干细胞对环孢素肾病大鼠肾组织转化生长因子β1的影响[J/OL]. 中华细胞与干细胞杂志(电子版), 2017, 07(01): 18-22.

Yong Zhang, Wei Zhang, Jianping Zhang, Wenli Zhuo, Weizhen Wu, Jianming Tan. Effect of mesenchymal stem cells on transforming growth factor-β1 in renal tissue of chronic cyclosporine nephropathy in rats[J/OL]. Chinese Journal of Cell and Stem Cell(Electronic Edition), 2017, 07(01): 18-22.

目的

观察干细胞治疗技术对环孢素肾病大鼠肾组织转化生长因子β1(TGF-β1)的影响。

方法

实验大鼠分成3组,每组10只大鼠:C组:正常对照组;H组:模型组;B组:骨髓间充质干细胞治疗组。28 d处死大鼠切取肾脏,免疫组织化学染色、RT-PCR、Western blot测定肾组织TGF-β1、α-平滑肌肌动蛋白(α-SMA)的表达水平。采用单因素方差分析比较各组数据。

结果

(1)免疫组织化学染色结果显示:与C组比较,H组、B组TGF-β1(0.899±0.046vs9.524±1.232,6.437±0.728;P <0.01)、α-SMA(2.427±0.188vs11.912±2.610,9.232±2.268;P < 0.01)表达水平均显著升高,差异具有统计学意义。与H组比较,B组大鼠的TGF-β1(9.524±1.232vs6.437±0.728;P <0.01)、α-SMA(11.912±2.610vs9.232±2.268;P <0.01)表达水平显著下降,差异具有统计学意义;(2)RT-PCR结果显示:与C组比较,H组、B组TGF-β1(0.119±0.003vs0.826±0.004,0.651±0.004;P <0.01)、α-SMA(0.370±0.006vs0.900±0.007,0.642±0.007;P <0.01)mRNA水平均显著升高,差异具有统计学意义(P< 0.05)。与H组比较,B组大鼠的TGF-β1(0.826±0.004vs0.651±0.004;P <0.01)、α-SMA(0.900±0.007vs0.642±0.007;P <0.01)mRNA水平显著下降,差异具有统计学意义;(3)Western blot结果显示:与C组比较,H组、B组TGF-β1(0.218±0.004vs 0.825±0.003,0.650±0.006;P <0.01)、α-SMA(0.263±0.003vs0.841±0.003,0.615±0.003;P <0.01)蛋白水平均显著升高,差异具有统计学意义。与H组比较,B组大鼠的TGF-β1(0.825±0.003vs0.650±0.006;P <0.01)、α-SMA(0.841±0.003vs0.615±0.003;P <0.01)蛋白水平显著下降,差异具有统计学意义。

结论

骨髓间充质干细胞治疗可以下调环孢素肾病大鼠肾组织TGF-β1表达水平,减少α-SMA表达水平,从而改善大鼠肾间质纤维化程度。

Objectives

To investigate the effect of mesenchymal stem cells on transforming growth factor-β1 in the renal tissue of rats with chronic cyclosporine nephropathy.

Methods

The experimental animals were divided into 3 groups: Group C: normal group (control) ; Group H: chronic cyclosporine nephropathy group; Group B: mesenchymal stem cells therapy group. On day 28 kidney tissue was evaluated for the expression levels of TGF-β1 andα-SMA by immunohistochemistry, RT-PCR, and Western blot.

Results

(1) Immunohistochemistry results: Compared with group C, TGF-β1 (0.899±0.046vs9.524±1.232, 6.437±0.728;P <0.01) ,α-SMA (0.370±0.006vs0.900±0.007, 0.642±0.007;P <0.01) in model group and group B are significantly increased. Compared with group H, expression levels of the above proteins in the groups B decreased (TGF-β1: 9.524±1.232vs6.437±0.728;P <0.01;α-SMA:11.912±2.610vs9.232±2.268,P <0.01) . (2) RT-PCR results: Compared with group C, TGF-β1 (0.119±0.003vs0.826±0.004, 0.651±0.004;P <0.01) ,α-SMA (0.370±0.006vs0.900±0.007, 0.642±0.007;P <0.01) in group H and group B are significantly increased. Compared with group H, expression levels of the above proteins in groups B decreased (TGF-β1: 0.826±0.004vs0.651±0.004;P <0.01;α-SMA: 0.900±0.007vs0.642±0.007;P <0.01) ; (3) Western blot results: Compared with group C, TGF-β1 (0.218±0.004vs0.825±0.003, 0.650±0.006;P <0.01) ,α-SMA (0.370±0.006 vs 0.900±0.007, 0.642±0.007;P <0.01) in model group and group B significantly increased. Compared with group H, expression levels of the above proteins decreased in group B (TGF-β1: 0.825±0.003vs0.650±0.006;P <0.01; 0.841±0.003vs0.615±0.003;P <0.01) .

Conclusion

Bone mesenchymal stem cells can mitigate renal interstitial fibrosis by decreasing the expression of TGF-β1 andα-SMA.

图1 光学显微镜下观察各组大鼠肾组织(HE染色,×400)
图2 光学显微镜下观察TGF-β1免疫组织化学染色(DAB染色,×400)
图3 光学显微镜下观察α-SMA免疫组织化学染色(DAB染色,×400)
图4 RT-PCR结果
图5 Western blot结果
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