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Updated: Jun 22, 2026

Unilateral Ureteral Obstruction Model for Investigating Kidney Interstitial Fibrosis
Published on: April 25, 2025
Fibroblast activation and myofibroblast generation in obstructive nephropathy
María T Grande1, José M López-Novoa
1Instituto Reina Sofía de investigación Nefrológica, Departamento de Fisiología y Farmacología, Universidad de Salamanca, Salamanca 37007, Spain.
Obstructive nephropathy causes kidney failure by activating fibroblasts and promoting epithelial-mesenchymal transition, leading to interstitial fibrosis. Targeting these processes may prevent or reverse renal dysfunction.
Area of Science:
- Nephrology
- Cell Biology
- Pathology
Background:
- Obstructive nephropathy is a leading cause of renal failure in children.
- Urinary tract obstruction triggers cellular changes in the kidney.
Purpose of the Study:
- To review the molecular mechanisms of fibroblast activation and epithelial-mesenchymal transition in obstructive nephropathy.
- To identify potential therapeutic targets for preventing or reversing renal interstitial fibrosis.
Main Methods:
- Review of existing literature on cellular and molecular pathways involved in kidney fibrosis.
- Analysis of the roles of fibroblasts, myofibroblasts, and epithelial-mesenchymal transition in renal damage.
Main Results:
- Fibroblast activation and epithelial-mesenchymal transition are key events in obstructive nephropathy.
- These processes lead to excessive extracellular matrix accumulation and interstitial fibrosis.
- Molecular signaling pathways regulate these cellular transformations.
Conclusions:
- Fibroblast activation and epithelial-mesenchymal transition are critical contributors to interstitial fibrosis in obstructive nephropathy.
- Targeting these pathways offers a promising strategy for treating renal dysfunction associated with this condition.
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