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Updated: Jun 1, 2026
07:02
Mouse Model of Acute to Chronic Kidney Disease Transition Induced by Renal Ischemia/Reperfusion Injury
Published on: February 10, 2026
Partial netrin-1 deficiency aggravates acute kidney injury
Almut Grenz1, Julee H Dalton, Jessica D Bauerle
1Mucosal Inflammation Program, Department of Anesthesiology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado, USA. Almut.Grenz@ucdenver.edu
Plos One
|June 1, 2011
Summary
Endogenous netrin-1 (Ntn-1) plays a protective role in acute kidney injury (AKI). Reduced Ntn-1 levels exacerbate kidney dysfunction and inflammation, while supplementation restores normal function.
Area of Science:
- Neurobiology
- Immunology
- Nephrology
Background:
- Netrin family proteins are crucial for neural development.
- Netrin-1 also regulates inflammatory responses, particularly in hypoxia-induced inflammation.
- The role of netrin-1 in acute kidney injury (AKI) remains largely unexplored.
Purpose of the Study:
- To investigate the anti-inflammatory role of endogenous netrin-1 in a mouse model of ischemic AKI.
- To determine if netrin-1 deficiency exacerbates kidney injury and inflammation.
Main Methods:
- Utilized partial netrin-1 deficient (Ntn-1(+/-)) mice, as homozygous deletion is lethal.
- Induced AKI via 30 minutes of renal ischemia and reperfusion.
- Assessed kidney function through glomerular filtration, urine analysis, serum creatinine, and creatinine clearance.
- Evaluated kidney injury severity using histological analysis and measured renal and systemic inflammatory markers.
- Administered exogenous netrin-1 to Ntn-1(+/-) mice to assess therapeutic potential.
Main Results:
- Ntn-1(+/-) mice exhibited reduced netrin-1 levels at baseline and post-AKI.
- Partial netrin-1 deficiency led to significantly enhanced kidney dysfunction and more severe histological injury.
- Renal and systemic inflammatory markers were elevated in Ntn-1(+/-) mice during AKI.
- Treatment with exogenous netrin-1 ameliorated AKI phenotypes in Ntn-1(+/-) mice.
Conclusions:
- Endogenous netrin-1 plays a critical protective role in attenuating renal inflammation and dysfunction during AKI.
- Netrin-1 deficiency exacerbates AKI, highlighting its anti-inflammatory function in the kidney.
- Exogenous netrin-1 holds therapeutic potential for managing AKI.
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