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山东大学学报(医学版) ›› 2014, Vol. 52 ›› Issue (7): 78-81.doi: 10.6040/j.issn.1671-7554.0.2014.087

• 临床医学 • 上一篇    下一篇

TGF-β1和α-SMA在人多囊肾发病中的表达

阙新祥, 丁森泰, 吴斐, 毕东滨, 吕家驹, 丁克家   

  1. 山东大学附属省立医院泌尿外科, 山东 济南 250021
  • 收稿日期:2014-02-23 修回日期:2014-05-13 出版日期:2014-07-10 发布日期:2014-07-10
  • 通讯作者: 丁克家。E-mail:kjding@163.com E-mail:kjding@163.com
  • 基金资助:
    山东省自然科学基金(ZR2011HQ027)

Expressions of TGF-β1 and α-SMA in autosomal dominant polycystic kidney disease

QUE Xinxiang, DING Sentai, WU Fei, BI Dongbin, LÜ Jiaju, DING Kejia   

  1. Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong, China
  • Received:2014-02-23 Revised:2014-05-13 Online:2014-07-10 Published:2014-07-10

摘要: 目的 探讨转化生长因子β1(TGF-β1)和α-平滑肌肌动蛋白(α-SMA)在常染色体显性遗传性多囊肾病(ADPKD) 中的表达,及其在发病机制中的作用。方法 选取62例ADPKD患者的肾组织,按照术前患肾的肾小球滤过率(GFR)将患者分为高滤过率组(A组)29例及低滤过率组(B组)33例,选取20例行肾癌根治性切除术患者的癌旁肾组织作为对照组。釆用免疫组织化学染色法分别检测TGF-β1和α-SMA在3组中的表达差异。结果 A、B两组在肾间质纤维化区域可见TGF-β1及α-SMA阳性表达,呈索状及斑块状分布;对照组无明显表达,TGF-β1及α-SMA与对照组比较差异均具有统计学意义(P<0.05)。α-SMA在A、B两组间的阳性表达率差异有统计学意义(P<0.05)。TGF-β1、α-SMA表达呈正相关(r=0.898, P<0.001)。结论 ADPKD肾组织高表达TGF-β1和α-SMA,两者相互促进上皮间质转化,导致肾组织纤维化。

关键词: 转化生长因子β, α-平滑肌肌动蛋白, 上皮间质转化, 肾纤维化, 常染色体显性遗传性多囊肾病

Abstract: Objective To investigate the expressions and mechanism of transforming growth factor-β1 (TGF-β1) and alpha smooth muscle actin (α-SMA) in autosomal dominant polycystic kidney disease (ADPKD). Methods According to the preoperative glomerular filtration rate (GFR) of abnormal kidney, 62 ADPKD patients were divided into two groups: high GFR group (group A, n=29), and low GFR group (group B, n=33). Another 20 patients treated with radical nephrectomy were chosen as controls(the control group). Kidney tissues from patients in groups A and B, and tumor-adjacent tissues from the controls were collected. Expressions of TGF-β1 and α-SMA of the three groups were detected with immunohistochemical method. Results TGF-β1 and α-SMA were positively expressed in groups A and B, with cord-like or patch-like distribution in the renal interstitial fibrosis area. No significant expression was found in the control group. The positive expression rate of α-SMA in groups A and B was statistically significant (P<0.05). The expressions of TGF-β1 and α-SMA were positively correlated (P<0.05). Conclusion TGF-β1 and α-SMA are highly expressed in ADPKD, both of which promote epithelial-to-mesenchymal transition, leading to renal fibrosis.

Key words: Renal fibrosis, Transforming grow factor-beta, Epithelial-to-mesenchymal transition, Autosomal dominant polycystic kidney disease, α-smooth muscle actin

中图分类号: 

  • R692
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