Related Experiment Video
Updated: Feb 20, 2026
Unilateral Ureteral Obstruction Model for Investigating Kidney Interstitial Fibrosis
Published on: April 25, 2025
Mechanisms of Renal Fibrosis
1Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri 63110, USA;
Abstract:
Tubulointerstitial fibrosis is a chronic and progressive process affecting kidneys during aging and in chronic kidney disease (CKD), regardless of cause. CKD and renal fibrosis affect half of adults above age 70 and 10% of the world's population. Although no targeted therapy yet exists to slow renal fibrosis, a number of important recent advances have clarified the cellular and molecular mechanisms underlying the disease. In this review, I highlight these advances with a focus on cells and pathways that may be amenable to therapeutic targeting. I discuss pathologic changes regulating interstitial myofibroblast activation, including profibrotic and proinflammatory paracrine signals secreted by epithelial cells after either acute or chronic injury. I conclude by highlighting novel therapeutic targets and approaches with particular promise for development of new treatments for patients with fibrotic kidney disease.
Insights
Tubulointerstitial fibrosis, a common kidney condition, progresses with age and chronic kidney disease (CKD). Recent advances clarify cellular mechanisms, identifying potential therapeutic targets for fibrotic kidney disease treatments.
Area of Science:
- Nephrology
- Pathology
- Molecular Biology
Background:
- Tubulointerstitial fibrosis is a progressive kidney condition linked to aging and chronic kidney disease (CKD).
- CKD and renal fibrosis impact a significant portion of the global population, particularly older adults.
- Currently, no specific therapies exist to halt the progression of renal fibrosis.
Purpose of the Study:
- To review recent advances in understanding the cellular and molecular mechanisms of tubulointerstitial fibrosis.
- To identify potential therapeutic targets within these mechanisms for treating fibrotic kidney disease.
- To discuss novel therapeutic strategies for patients suffering from kidney fibrosis.
Main Methods:
- Literature review focusing on cellular and molecular pathways in renal fibrosis.
- Analysis of pathological changes in interstitial myofibroblast activation.
- Examination of paracrine signaling between injured epithelial cells and surrounding tissues.
Main Results:
- Recent research has elucidated key cellular and molecular drivers of renal fibrosis.
- Profibrotic and proinflammatory signals from injured epithelial cells play a critical role.
- Interstitial myofibroblast activation is a central pathological process.
Conclusions:
- Novel therapeutic targets and approaches show promise for treating fibrotic kidney disease.
- Understanding cellular mechanisms offers new avenues for drug development.
- Targeting specific pathways could slow or reverse kidney fibrosis progression.
Related Concept Videos
01:29Acute Kidney Injury II: Pathophysiology
01:20Renal Corpuscle
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
01:26Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
01:29Hypertension II: Pathophysiology
01:25Chronic Kidney Disease I: Introduction
01:10Nephrons