Secreted Frizzled-Related Protein 5 Ameliorates Vascular Calcification in a Rat Model of Chronic Kidney Disease through the Wnt/β-Catenin Pathway

Introduction: Vascular calcification (VC) is highly prevalent and a major cardiovascular risk factor in chronic kidney disease (CKD) patients. Secreted frizzled-related protein 5 (SFRP5), an inhibitor of the Wnt pathway, is an adipokine with a positive effect on metabolic and cardiovascular diseases...

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Main Authors: Dai Deng, Xue Han, Zongli Diao, Wenhu Liu
Format: Article
Language:English
Published: Karger Publishers 2021-09-01
Series:Kidney & Blood Pressure Research
Subjects:
Online Access:https://www.karger.com/Article/FullText/517095
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author Dai Deng
Xue Han
Zongli Diao
Wenhu Liu
author_facet Dai Deng
Xue Han
Zongli Diao
Wenhu Liu
author_sort Dai Deng
collection DOAJ
description Introduction: Vascular calcification (VC) is highly prevalent and a major cardiovascular risk factor in chronic kidney disease (CKD) patients. Secreted frizzled-related protein 5 (SFRP5), an inhibitor of the Wnt pathway, is an adipokine with a positive effect on metabolic and cardiovascular diseases. Our previous in vitro study showed that SFRP5 attenuates high phosphate-induced calcification in vascular smooth muscle cells by inhibiting the Wnt/β-catenin pathway. Therefore, we hypothesized that SFRP5 may protect against CKD-associated VC (CKD-VC) through the same signalling. Methods: The rat model of CKD with VC was induced by 0.75% adenine combined with 1.8% high phosphate diet, which were administered with adenovirus vectors of SFRP5. We evaluated the SFRP5 effect on VC by von Kossa staining and calcium content analysis and osteogenic markers by immunohistochemistry and Western blot. The components of Wnt/ß-catenin signalling were also evaluated. Results: SFRP5 local and serum levels were significantly decreased in the CKD-VC rat model compared with the control group. Adenovirus-mediated overexpression of SFRP5 significantly inhibited VC, which was due to suppression of CKD-induced expression of calcification and osteoblastic markers. Additionally, SFRP5 abrogated activation of the Wnt/β-catenin pathway that plays a major role in the pathogenesis of VC. The specificity of SFRP5 for inhibition of VC was confirmed using an empty adenovirus as a control. Conclusion: Our results suggest that SFRP5 ameliorates VC of CKD rats by inhibiting the expression of calcification and osteoblastic markers as well as the Wnt/β-catenin pathway. Collectively, this study suggests that SFRP5 is a potential therapeutic target in CKD-VC.
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spelling doaj.art-faea99372a964d2f8c2de7520d0659b22022-12-21T21:56:03ZengKarger PublishersKidney & Blood Pressure Research1420-40961423-01432021-09-0111010.1159/000517095517095Secreted Frizzled-Related Protein 5 Ameliorates Vascular Calcification in a Rat Model of Chronic Kidney Disease through the Wnt/β-Catenin PathwayDai DengXue HanZongli DiaoWenhu LiuIntroduction: Vascular calcification (VC) is highly prevalent and a major cardiovascular risk factor in chronic kidney disease (CKD) patients. Secreted frizzled-related protein 5 (SFRP5), an inhibitor of the Wnt pathway, is an adipokine with a positive effect on metabolic and cardiovascular diseases. Our previous in vitro study showed that SFRP5 attenuates high phosphate-induced calcification in vascular smooth muscle cells by inhibiting the Wnt/β-catenin pathway. Therefore, we hypothesized that SFRP5 may protect against CKD-associated VC (CKD-VC) through the same signalling. Methods: The rat model of CKD with VC was induced by 0.75% adenine combined with 1.8% high phosphate diet, which were administered with adenovirus vectors of SFRP5. We evaluated the SFRP5 effect on VC by von Kossa staining and calcium content analysis and osteogenic markers by immunohistochemistry and Western blot. The components of Wnt/ß-catenin signalling were also evaluated. Results: SFRP5 local and serum levels were significantly decreased in the CKD-VC rat model compared with the control group. Adenovirus-mediated overexpression of SFRP5 significantly inhibited VC, which was due to suppression of CKD-induced expression of calcification and osteoblastic markers. Additionally, SFRP5 abrogated activation of the Wnt/β-catenin pathway that plays a major role in the pathogenesis of VC. The specificity of SFRP5 for inhibition of VC was confirmed using an empty adenovirus as a control. Conclusion: Our results suggest that SFRP5 ameliorates VC of CKD rats by inhibiting the expression of calcification and osteoblastic markers as well as the Wnt/β-catenin pathway. Collectively, this study suggests that SFRP5 is a potential therapeutic target in CKD-VC.https://www.karger.com/Article/FullText/517095vascular calcificationsecreted frizzled-related protein 5wnt/β-catenin pathwaychronic kidney disease
spellingShingle Dai Deng
Xue Han
Zongli Diao
Wenhu Liu
Secreted Frizzled-Related Protein 5 Ameliorates Vascular Calcification in a Rat Model of Chronic Kidney Disease through the Wnt/β-Catenin Pathway
Kidney & Blood Pressure Research
vascular calcification
secreted frizzled-related protein 5
wnt/β-catenin pathway
chronic kidney disease
title Secreted Frizzled-Related Protein 5 Ameliorates Vascular Calcification in a Rat Model of Chronic Kidney Disease through the Wnt/β-Catenin Pathway
title_full Secreted Frizzled-Related Protein 5 Ameliorates Vascular Calcification in a Rat Model of Chronic Kidney Disease through the Wnt/β-Catenin Pathway
title_fullStr Secreted Frizzled-Related Protein 5 Ameliorates Vascular Calcification in a Rat Model of Chronic Kidney Disease through the Wnt/β-Catenin Pathway
title_full_unstemmed Secreted Frizzled-Related Protein 5 Ameliorates Vascular Calcification in a Rat Model of Chronic Kidney Disease through the Wnt/β-Catenin Pathway
title_short Secreted Frizzled-Related Protein 5 Ameliorates Vascular Calcification in a Rat Model of Chronic Kidney Disease through the Wnt/β-Catenin Pathway
title_sort secreted frizzled related protein 5 ameliorates vascular calcification in a rat model of chronic kidney disease through the wnt β catenin pathway
topic vascular calcification
secreted frizzled-related protein 5
wnt/β-catenin pathway
chronic kidney disease
url https://www.karger.com/Article/FullText/517095
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