Ellagic Acid Ameliorates Renal Fibrogenesis by Blocking Epithelial-to-mesenchymal Transition

Overview

Journal Tzu Chi Med J

Specialty General Medicine

Date 2024 Feb 26

PMID 38406569

Authors

Po-Yu Huang

Yi-Hsien Hsieh

Yi-Hsuan Ting

Chu-Che Lee

Jen-Pi Tsai

Affiliations

Soon will be listed here.

Abstract

Objectives: Ellagic acid (EA), a kind of polyphenol found in numerous fruits and vegetables, has anti-inflammatory, anti-apoptotic, anti-oxidant, and anti-fibrotic effects against a variety of diseases, but its role in mediating renal fibrogenesis remains unknown.

Materials And Methods: We used an mouse unilateral ureteral obstruction (UUO) model and an model with HK-2 cell lines treated with EA and transforming growth factor β1 (TGF-β1). The expression of epithelial-to-mesenchymal transition (EMT)-related proteins of UUO mice was examined using immunohistochemical staining. Liver function and renal function were evaluated using biochemical testing. Western blot analysis was used to determine the proteins related to EMT, and MTT assay was used to determine cell viability.

Results: In UUO mice fed EA, both microscopical examination with immunohistochemical staining and western blotting protein analysis showed reduced expression of fibrotic (α-SMA, fibronectin, and collagen I)- and EMT (vimentin and N-cadherin)-related proteins, compared with sham control. In HK-2 cells treated with TGF-β1, EA decreased motility as well as expression of α-SMA, collagen-I, fibronectin, N-cadherin, and vimentin.

Conclusion: EA reduced the progression of the morphological transformations and concomitantly suppressed the expression of fibrotic- and EMT-related proteins and . These findings improved our understanding of the role of EA in suppressing renal fibrogenesis and demonstrated the promising role EA may play in the management of chronic kidney disease.

Citing Articles

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Wang S, Zhang W, Tian B, Hu Y, Li T, Cui X Animals (Basel). 2024; 14(20).

PMID: 39457938 PMC: 11505372. DOI: 10.3390/ani14203009.

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