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Cited by 310

The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.

Uremic Toxins Induce Kidney Fibrosis by Activating Intrarenal Renin–Angiotensin–Aldosterone System Associated Epithelial-to-Mesenchymal Transition

Open access
Sun, Chiao-Yin, Chang, Shih-Chung, Wu, Mai-Szu·2012·PLoS ONE

Abstract

BACKGROUND: Uremic toxins are considered to have a determinant pathological role in the progression of chronic kidney disease. The aim of this study was to define the putative pathological roles of the renal renin-angiotensin-aldosterone system (RAAS) and renal tubular epithelial-to-mesenchymal transition (EMT) in kidney fibrosis induced by (indoxyl sulfate) IS and (p-cresol sulfate) PCS. METHODS: Mouse proximal renal tubular cells (PKSV-PRs) treated with IS or PCS were used. Half-nephrectomized B-6 mice were treated with IS or PCS for 4 weeks. In the losartan treatment study, the study animal was administrated with IS+losartan or PCS+losartan for 4 weeks. RESULTS: IS and PCS significantly activated the intrarenal RAAS by increasing renin, angiotensinogen, and angiotensin 1 (AT1) receptor expression, and decreasing AT2 receptor expression in vitro and in vivo. IS and PCS significantly increased transforming growth factor-β1 (TGF-β1) expression and activated the TGF-β pathway by increasing Smad2/Smad2-P, Smad3/Smad3-P, and Smad4 expression. The expression of the EMT-associated transcription factor Snail was increased by IS and PCS treatment. IS and PCS induced the phenotype of EMT-like transition in renal tubules by increasing the expression of fibronectin and α-smooth muscle actin and decreasing the expression of E-cadherin. Losartan significantly attenuated the expression of TGF-β1 and Snail, and decreased kidney fibrosis induced by IS and PCS in vivo. CONCLUSION: Activating the renal RAAS/TGF-β pathway has an important pathological role in chronic kidney injury caused by IS and PCS. IS and PCS may increase Snail expression and induce EMT-like transition.

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Metadata

Authors
Sun, C.-Y., Chang, S.-C., & Wu, M.-S.
Venue
PLoS ONE
Published
2012-03-30
Volume
7
Issue
3
Pages
e34026
ISSN
1932-6203 (ISSN-L)
OpenAlex
W1971266941
Cited by
310
References
41
FWCI
11.06
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Uremic Toxins Induce Kidney Fibrosis by Activating Intrarenal Renin–Angiotensin–Aldosterone System Associated Epithelial-to-Mesenchymal Transition. https://app.cochat.ai/papers/10.1371/journal.pone.0034026
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Sun, C.-Y., Chang, S.-C., & Wu, M.-S. (2012). Uremic Toxins Induce Kidney Fibrosis by Activating Intrarenal Renin–Angiotensin–Aldosterone System Associated Epithelial-to-Mesenchymal Transition. PLoS ONE. https://doi.org/10.1371/journal.pone.0034026

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