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Contribution of ECT2 to Tubulointerstitial Fibrosis in the Progression of Chronic Kidney Disease
1Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
Objective:
Chronic kidney disease (CKD) is a complex disorder resulting from a combination of various environmental and genetic factors. Considerable efforts have been dedicated to elucidating its etiological mechanisms. Nevertheless, the pathogenic mechanism of CKD remains poorly understood, which hinders the development of effective therapeutic strategies. In this study, we aimed to identify novel mediators that could contribute to the development of CKD.
Methods:
The ClinVar, STRING, MEME Suite, TRRUST, bedtools, GEO, and R Studio databases and software were used to analyze their common features and investigate potential CKD disease genes. Transcriptomic analysis, immunohistochemistry, qRT-PCR, and Western blotting were utilized to further validate the role of ECT2 in kidney fibrosis.
Results:
In total, 26 CKD disease genes were obtained from the ClinVar database, and the STRING, MEME Suite, TRRUST, bedtools, and GEO databases and software were used to analyze their common properties and explore potential CKD disease genes. Epithelial cell transforming sequence 2 (ECT2), cyclin B 1, caspase 7 and collagen alpha-1 (IV) were identified as potential candidates for CKD progression. Weighted correlation network analysis (WGCNA) subsequently revealed the relationships between potential genes and CKD. The results of the transcriptomic analysis further confirmed that ECT2 expression was greater in the kidney tissue of CKD patients than in that of healthy controls. Next, immunohistochemistry and Western blotting demonstrated that ECT2 was predominantly expressed in the renal tubules of a unilateral ureteral obstruction (UUO) mouse model. Consistently, in vitro experiments revealed that ECT2 was upregulated in TGF-β1-treated HK-2 cells. Moreover, ECT2 overexpression or knockdown in HK-2 cells altered the intensity of fibrosis markers.
Conclusion:
ECT2 significantly affects the development and progression of CKD, particularly in association with tubulointerstitial fibrosis.
Insights
Epithelial cell transforming sequence 2 (ECT2) is a key mediator in chronic kidney disease (CKD) development and progression, particularly in tubulointerstitial fibrosis. This study identified ECT2 as a novel therapeutic target for CKD.
Area of Science:
- Nephrology
- Molecular Biology
- Genetics
Background:
- Chronic kidney disease (CKD) pathogenesis is complex and poorly understood, hindering effective treatments.
- Identifying novel mediators is crucial for developing new therapeutic strategies for CKD.
Purpose of the Study:
- To identify novel mediators contributing to the development of chronic kidney disease (CKD).
- To investigate the role of Epithelial cell transforming sequence 2 (ECT2) in kidney fibrosis and CKD progression.
Main Methods:
- Utilized bioinformatics databases (ClinVar, STRING, MEME Suite, TRRUST, GEO) and R Studio for gene analysis.
- Employed transcriptomic analysis, immunohistochemistry, qRT-PCR, and Western blotting for validation.
- Conducted in vitro experiments using HK-2 cells and in vivo studies with a unilateral ureteral obstruction (UUO) mouse model.
Main Results:
- Identified 26 potential CKD disease genes, including Epithelial cell transforming sequence 2 (ECT2), cyclin B 1, caspase 7, and collagen alpha-1 (IV).
- ECT2 expression was significantly elevated in CKD patient kidney tissue and upregulated in TGF-β1-treated HK-2 cells.
- ECT2 overexpression or knockdown modulated fibrosis markers in HK-2 cells, confirming its role in kidney fibrosis.
Conclusions:
- Epithelial cell transforming sequence 2 (ECT2) plays a significant role in the development and progression of CKD.
- ECT2 is particularly associated with tubulointerstitial fibrosis, suggesting it as a potential therapeutic target.
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