Role of transforming growth factor-β1 during glomerulosclerosis in rats with reduced renal mass

Role of transforming growth factor-β1 during glomerulosclerosis in rats with reduced renal mass
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转化生长因子-β1 在肾质量减少大鼠肾小球硬化过程中的作用

DOI:
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发表时间:
1997
影响因子:
2.3
通讯作者:
H. Tomoike
H. Tomoike
中科院分区:
医学4区
文献类型:
--
作者:
T. Konta;N. Degawa;S. Kato;H. Tomoike

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背景这些研究旨在调查肾部分切除术后大鼠肾小球硬化演变过程中转化生长因子-β1 (TGF-β1) 表达的时间变化。方法在 36 只 5/6 肾切除 (Nx) 和 30 只假手术 Wistar 大鼠中连续 3 天和术后1、2、4、8和12周。通过使用硬化指数(指数范围,0至4)评估肾小球硬化的程度。分别使用单克隆抗体ED1和单克隆抗IV型胶原抗体对单核细胞/巨噬细胞浸润和IV型胶原进行免疫组织化学鉴定。 结果12周时,5/6肾切除大鼠和假手术大鼠的硬化指数分别为1.64±0.20和0.06±0.01(P<0.0001,方差分析)。在肾切除大鼠中,TGF-β1 阳性染色面积随时间依赖性增加,同时 ED1 和 IV 型胶原染色呈阳性。 TGF-β1、ED1 和 IV 型胶原表达之间存在很强的拓扑关系。 TGF-β1 信使核糖核酸 (mRNA) 的 Northern 印迹分析显示,肾切除大鼠中的表达呈时间依赖性增强,但在手术后的大鼠中则不然(在 1、4、8 和 12 周分别为 0.8、2.2、1.6 和 3.4 倍)。结论 TGF-β1 在肾小球硬化的进展中发挥着关键作用。肾切除大鼠,与单核细胞/巨噬细胞浸润相关。
BackgroundThese studies were designed to investigate chronologic changes of transforming growth factor-β1 (TGF-β1) expression during the evolution of glomerulosclerosis in rats after partial nephrectomy.MethodsThe time course of TGF-β1 expression and its localization at the renal cortex was examined immunohistochemically in thirty-six 5/6 nephrectomized (Nx) and 30 sham-operated Wistar rats serially at 3 days and at 1,2,4,8 and 12 weeks after surgery. The extent of glomerulosclerosis was assessed by using the sclerosis index (index range, 0 to 4). Monocyte/macrophage infiltration and type IV collagen were immunohistochemically identified using the monoclonal antibody ED1 and monoclonal anti-type IV collagen antibody, respectively.ResultsAt 12 weeks, the sclerosis index was 1.64±0.20 and 0.06±0.01 (P<0.0001, analysis of variance) in 5/6 nephrectomized and sham-operated rats, respectively. In the nephrectomized rats, the area of positive-TGF-β1 staining increased time-dependently, concomitant with positive results for ED1 and type IV collagen stainings. There was a strong topologic relationship among TGF-β1, ED1, and type IV collagen expression. Northern blot analysis of TGF-β1 messenger ribonucleic acid (mRNA) showed time-dependently augmented expression in nephrectomized, but not in shamoperated, rats (0.8-, 2.2-, 1.6,- and 3.4-fold at 1, 4, 8 and 12 weeks, respectively).ConclusionTGF-β1 plays a pivotal role in the progression of glomerulosclerosis in nephrectomized rats, in association with infiltration of monocytes/macrophages.
DOI: --
发表时间: 1990
影响因子: 19.6
作者:
W. A. Border;Seiya Okuda;R. Languino;E. Ruoslahti
通讯作者: W. A. Border;Seiya Okuda;R. Languino;E. Ruoslahti
DOI: 10.1172/jci117251
发表时间: 1994-06-01
影响因子: 15.9
作者:
KAGAMI, S;BORDER, WA;NOBLE, NA
通讯作者: NOBLE, NA
DOI: --
发表时间: 2005
期刊: --
影响因子: --
作者:
Chih-wei;Yang;Masakazu;Hattori;Helen;Vlassara;Ci-Jiang;He;Michael;-A.;Carome;Eiji;Yamato;Sharon;Elliot;Gary;E. Striker;Liliane;J. Striker;-S.;E. G.;Striker;J. L.
通讯作者: Chih-wei;Yang;Masakazu;Hattori;Helen;Vlassara;Ci-Jiang;He;Michael;-A.;Carome;Eiji;Yamato;Sharon;Elliot;Gary;E. Striker;Liliane;J. Striker;-S.;E. G.;Striker;J. L.
DOI: 10.1073/pnas.90.5.1814
发表时间: 1993-03-01
影响因子: 11.1
作者:
YAMAMOTO, T;NAKAMURA, T;BORDER, WA
通讯作者: BORDER, WA