Canonical Wnt/β-catenin signaling mediates transforming growth factor-β1-driven podocyte injury and proteinuria.

Canonical Wnt/β-catenin signaling mediates transforming growth factor-β1-driven podocyte injury and proteinuria.
复制标题

DOI:
10.1038/ki.2011.255
复制
发表时间:
2011-12
影响因子:
19.6
通讯作者:
--
中科院分区:
医学1区
文献类型:
--
作者:

文献摘要

参考文献

被引文献

相似文献

转化生长因子-β-1(转化生长因子-β-1)的上调几乎存在于所有慢性肾脏疾病中,并与足细胞损伤和蛋白尿有关;然而,在体内导致这种上调的机制尚不明确。在体外,足细胞与转化生长因子-β-1共同孵育,可诱导WNT-1表达,激活β-连环蛋白,并刺激WNT/β-连环蛋白下游靶基因的表达。WNT1或β-catenin的异位表达可模拟转化生长因子-β-1,诱导Snail1,并抑制neparin的表达。Wnt拮抗剂Dickkopf-1可阻断转化生长因子-β-1诱导的β-连环蛋白的激活、Snail1的诱导和neparin的抑制。在体内,转化生长因子-β1的异位表达诱导了WNT-1的表达,激活了β-连环蛋白,上调了WNT靶基因Snail1、MMP7、MMP9、结蛋白、FSP1和PAI1的表达,导致足细胞损伤和蛋白尿。Dickkopf-1基因的同时表达抑制了β-连环蛋白的激活,抑制了转化生长因子-β-1诱导的Wnt靶基因表达,并缓解了蛋白尿。因此,规范的Wnt/β-catenin信号介导转化生长因子-β-1驱动的足细胞损伤和蛋白尿。这些研究表明,Wnt/β-Catenin信号转导通路可能成为治疗蛋白尿肾病的靶点。
Transforming growth factor-β1 (TGF-β1) upregulation occurs in virtually all chronic kidney diseases and is associated with podocyte injury and proteinuria; however, the mechanisms contributing to this in vivo are ambiguous. In vitro, incubation of podocytes with TGF-β1 induced Wnt1 expression, β-catenin activation, and stimulated the expression of Wnt/β-catenin downstream target genes. Ectopic expression of Wnt1 or β-catenin mimicked TGF-β1, induced Snail1, and suppressed nephrin expression. The Wnt antagonist, Dickkopf-1, blocked TGF-β1-induced β-catenin activation, Snail1 induction, and nephrin suppression. In vivo, ectopic expression of TGF-β1 induced Wnt1 expression, activated β-catenin, and upregulated Wnt target genes such as Snail1, MMP-7, MMP-9, desmin, Fsp1, and PAI-1 in mouse glomeruli, leading to podocyte injury and albuminuria. Consistently, concomitant expression of Dickkopf-1 gene abolished β-catenin activation, inhibited TGF-β1-triggered Wnt target gene expression, and mitigated albuminuria. Thus, canonical Wnt/β-catenin signaling mediates TGF-β1-driven podocyte injury and proteinuria. These studies suggest that Wnt/β-catenin signaling may be exploited as a therapeutic target for the treatment of proteinuric kidney diseases.
DOI: 10.1016/j.devcel.2005.05.016
发表时间: 2005-08-01
期刊: DEVELOPMENTAL CELL
影响因子: 11.8
作者:
Carroll, TJ;Park, JS;McMahon, AP
通讯作者: McMahon, AP
DOI: 10.1038/labinvest.3700518
发表时间: 2007-03-01
影响因子: 5
作者:
Matsui, Isao;Ito, Takahito;Hori, Masatsugu
通讯作者: Hori, Masatsugu
DOI: 10.2353/ajpath.2008.070057
发表时间: 2008-02-01
影响因子: 6
作者:
Li, Yingjian;Kang, Young Sun;Liu, Youhua
通讯作者: Liu, Youhua
DOI: 10.1016/j.cellsig.2008.05.003
发表时间: 2008-09-01
影响因子: 4.8
作者:
Hirota, Morihisa;Watanabe, Kazuhide;Salomon, David S.
通讯作者: Salomon, David S.
DOI: 10.1152/ajprenal.1996.271.3.f679
发表时间: 1996-09-01
期刊: AMERICAN JOURNAL OF PHYSIOLOGY-RENAL FLUID AND ELECTROLYTE PHYSIOLOGY
影响因子: --
作者:
Liu, YH;Tolbert, EM;Dworkin, LD
通讯作者: Dworkin, LD