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Updated: Mar 26, 2026

Bilateral Renal Ischemia-Reperfusion Model for Acute Kidney Injury in Mice
Published on: February 2, 2024
Cellular and Molecular Mechanisms of AKI
Anupam Agarwal1, Zheng Dong2, Raymond Harris3
1Division of Nephrology, and Nephrology Research and Training Center, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; Agarwal@uab.edu.
Abstract:
In this article, we review the current evidence for the cellular and molecular mechanisms of AKI, focusing on epithelial cell pathobiology and related cell-cell interactions, using ischemic AKI as a model. Highlighted are the clinical relevance of cellular and molecular targets that have been investigated in experimental models of ischemic AKI and how such models might be improved to optimize translation into successful clinical trials. In particular, development of more context-specific animal models with greater relevance to human AKI is urgently needed. Comorbidities that could alter patient susceptibility to AKI, such as underlying diabetes, aging, obesity, cancer, and CKD, should also be considered in developing these models. Finally, harmonization between academia and industry for more clinically relevant preclinical testing of potential therapeutic targets and better translational clinical trial design is also needed to achieve the goal of developing effective interventions for AKI.
Insights
This review examines acute kidney injury (AKI) mechanisms, emphasizing epithelial cell damage and interactions. Improved animal models and clinical trial designs are crucial for developing effective AKI treatments.
Area of Science:
- Nephrology
- Cellular Biology
- Molecular Medicine
Background:
- Acute kidney injury (AKI) involves complex cellular and molecular processes, particularly affecting kidney epithelial cells.
- Ischemic AKI serves as a key model for studying these mechanisms and cell-cell interactions.
Purpose of the Study:
- To review current evidence on cellular and molecular mechanisms of AKI.
- To assess the clinical relevance of targets investigated in experimental AKI models.
- To identify improvements needed for AKI animal models and translational clinical trials.
Main Methods:
- Review of existing scientific literature on AKI.
- Analysis of cellular and molecular pathobiology in ischemic AKI models.
- Evaluation of preclinical models and translational strategies for AKI therapeutics.
Main Results:
- Epithelial cell pathobiology and cell-cell interactions are central to AKI.
- Current experimental models require enhancement for better clinical translation.
- Comorbidities like diabetes, aging, obesity, cancer, and CKD significantly impact AKI susceptibility.
Conclusions:
- Development of context-specific animal models is essential for human AKI research.
- Harmonization between academia and industry is needed for effective preclinical testing.
- Optimized translational clinical trial design is critical for AKI intervention development.
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