Related Experiment Video
Updated: Aug 23, 2026

Analysis of Nephron Composition and Function in the Adult Zebrafish Kidney
Published on: August 9, 2014
Cell cycle regulation: repair and regeneration in acute renal failure
Peter M Price1, Judit Megyesi, Robert L Saf Irstein
1Department of Internal Medicine, University of Arkansas for Medical Sciences and Department of Veterans Affairs Medical Center, Little Rock, Arkansas 72205, USA. PricePeter@uams.edu
Abstract:
Research into mechanisms of acute renal failure has begun to reveal molecular targets for possible therapeutic intervention. Much useful knowledge into the causes and prevention of this syndrome has been gained by the study of animal models. Most recently, investigation of the effects on acute renal failure of selected gene knock-outs in mice has contributed to our recognition of many previously unappreciated molecular pathways. Particularly, experiments have revealed the protective nature of two highly induced genes whose functions are to inhibit and control the cell cycle after acute renal failure. By use of these models we have started to understand the role of increased cell cycle activity after renal stress, and the role of proteins induced by these stresses that limit this proliferation.
Insights
Studying gene knock-outs in mice revealed that two highly induced genes protect against acute kidney injury by controlling cell cycle progression. This research identifies new molecular targets for preventing kidney damage.
Area of Science:
- Nephrology
- Molecular Biology
- Genetics
Background:
- Acute kidney injury (AKI) is a significant clinical problem with limited therapeutic options.
- Understanding the molecular mechanisms underlying AKI is crucial for developing effective treatments.
- Animal models, particularly mouse gene knock-outs, have become invaluable for dissecting AKI pathways.
Purpose of the Study:
- To investigate the molecular pathways involved in acute renal failure using mouse models.
- To identify genes and proteins that play a protective role in the context of AKI.
- To elucidate the role of cell cycle regulation in renal recovery after injury.
Main Methods:
- Utilized selected gene knock-out mouse models to study AKI.
- Analyzed gene expression and protein induction in response to renal stress.
- Investigated the function of specific induced genes in cell cycle control post-AKI.
Main Results:
- Identified two highly induced genes that exhibit protective effects in AKI.
- Demonstrated that these genes function to inhibit and control the cell cycle after renal failure.
- Revealed the critical role of cell cycle activity and regulatory proteins in renal stress response.
Conclusions:
- Specific gene products that inhibit cell cycle progression are protective in AKI.
- Targeting these cell cycle regulatory pathways may offer novel therapeutic strategies for AKI.
- Mouse models provide critical insights into the molecular basis of renal injury and repair.
Related Concept Videos
Acute Kidney Injury V: Interprofessional Care
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Acute Kidney Injury II: Pathophysiology
Acute Kidney Injury III: Clinical Manifestations
Dialysis
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
Continuous Renal Replacement Therapy

