Related Experiment Video
Updated: Jun 8, 2026

Modeling Hypoxia/Reoxygenation Injury in Proximal Tubular Epithelial Cells
Published on: November 21, 2025
WITHDRAWN: Kidney injury molecule-1: a novel kidney-specific injury molecule playing potential double-edged functions
Wenqian Huo1, Rongrong Liu, Keqin Zhang
1Department of Urology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing - PR China.
Abstract:
Ahead of Print article withdrawn by Publisher. Kidney injury molecule-1 (KIM-1), a recently discovered transmembrane protein, is expressed in dedifferentiated renal proximal tubular epithelial cells in damaged regions. Many studies have confirmed that KIM-1 is a specific marker of renal proximal tubular damage. Recently, more attention has been paid to its potential pathophysiological functions in renal injury or repair. A number of studies have illustrated the different functions of KIM-1 in various renal diseases, including its protective functions in acute kidney injury and damaging functions in chronic kidney disease. Although the exact functions of KIM-1 still remain unclear, some scientists speculate that KIM-1 may be a therapeutic target for kidney injury. In this review, some of the known features and functions of KIM-1 are highlighted.
Insights
Kidney injury molecule-1 (KIM-1) is a marker for kidney damage. Its functions vary, showing protective roles in acute kidney injury but damaging effects in chronic kidney disease, suggesting therapeutic potential.
Area of Science:
- Nephrology
- Molecular Biology
- Biochemistry
Background:
- Kidney injury molecule-1 (KIM-1) is a transmembrane protein.
- KIM-1 is expressed in dedifferentiated renal proximal tubular epithelial cells in damaged kidney regions.
- KIM-1 is a specific marker for renal proximal tubular damage.
Purpose of the Study:
- To review the known features and functions of KIM-1.
- To highlight the potential pathophysiological roles of KIM-1 in renal injury and repair.
- To discuss the dual role of KIM-1 in different kidney diseases.
Main Methods:
- Literature review of existing studies on KIM-1.
- Analysis of research investigating KIM-1's expression and function.
- Synthesis of findings regarding KIM-1's involvement in renal pathophysiology.
Main Results:
- KIM-1 is consistently found in damaged renal tubules.
- KIM-1 exhibits protective functions in acute kidney injury.
- KIM-1 demonstrates damaging functions in chronic kidney disease.
Conclusions:
- The precise functions of KIM-1 in kidney injury are still under investigation.
- KIM-1's distinct roles in acute versus chronic kidney disease warrant further study.
- KIM-1 is considered a potential therapeutic target for kidney injury.
Related Concept Videos
Acute Kidney Injury I: Introduction
Acute Kidney Injury II: Pathophysiology
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Acute Kidney Injury III: Clinical Manifestations
Acute Kidney Injury V: Interprofessional Care
Nephrons

