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Updated: Sep 20, 2025

Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice
Published on: May 2, 2025
Molecular mechanisms and therapeutic targets for diabetic kidney disease
Katherine R Tuttle1, Rajiv Agarwal2, Charles E Alpers3
1Providence Medical Research Center, Providence Health Care, Spokane, Washington, USA; Institute of Translational Health Sciences, Kidney Research Institute, and Nephrology Division, University of Washington, Seattle, Washington, USA.
Abstract:
Diabetic kidney disease has a high global disease burden and substantially increases the risk of kidney failure and cardiovascular events. Despite treatment, there is substantial residual risk of disease progression with existing therapies. Therefore, there is an urgent need to better understand the molecular mechanisms driving diabetic kidney disease to help identify new therapies that slow progression and reduce associated risks. Diabetic kidney disease is initiated by diabetes-related disturbances in glucose metabolism, which then trigger other metabolic, hemodynamic, inflammatory, and fibrotic processes that contribute to disease progression. This review summarizes existing evidence on the molecular drivers of diabetic kidney disease onset and progression, focusing on inflammatory and fibrotic mediators-factors that are largely unaddressed as primary treatment targets and for which there is increasing evidence supporting key roles in the pathophysiology of diabetic kidney disease. Results from recent clinical trials highlight promising new drug therapies, as well as a role for dietary strategies, in treating diabetic kidney disease.
Insights
Diabetic kidney disease (DKD) poses a significant health risk. Understanding DKD
Area of Science:
- Nephrology
- Endocrinology
- Molecular Medicine
Background:
- Diabetic kidney disease (DKD) is a major cause of kidney failure and cardiovascular events globally.
- Existing therapies leave a substantial residual risk of DKD progression.
- Understanding DKD's molecular drivers is crucial for developing novel treatments.
Purpose of the Study:
- To review the molecular mechanisms underlying diabetic kidney disease (DKD) onset and progression.
- To highlight the roles of inflammatory and fibrotic mediators in DKD pathophysiology.
- To discuss emerging therapeutic strategies for DKD.
Main Methods:
- Literature review of existing evidence on DKD molecular drivers.
- Focus on inflammatory and fibrotic pathways.
- Analysis of recent clinical trial results and dietary strategies.
Main Results:
- Diabetes-related metabolic disturbances initiate DKD, triggering metabolic, hemodynamic, inflammatory, and fibrotic processes.
- Inflammatory and fibrotic mediators play key roles in DKD progression.
- Recent trials show promise for new drug therapies and dietary interventions.
Conclusions:
- Targeting inflammatory and fibrotic mediators offers a promising therapeutic avenue for diabetic kidney disease (DKD).
- Novel drug therapies and dietary strategies are emerging as effective treatments for DKD.
- Further research into molecular mechanisms is essential to reduce DKD progression and associated risks.
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