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Updated: Jul 6, 2025

Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice
Published on: May 2, 2025
Macrophage polarization and signaling in diabetic kidney disease: a catalyst for disease progression
Natalie Youssef1,2, Mohamed H Noureldein1,2, Mansour E Riachi1,2
1Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.
Abstract:
Diabetic kidney disease (DKD) is a serious complication of diabetes affecting millions of people worldwide. Macrophages, a critical immune cell type, are central players in the development and progression of DKD. In this comprehensive review, we delve into the intricate role of macrophages in DKD, examining how they can become polarized into proinflammatory M1 or anti-inflammatory M2 phenotypes. We explore the signaling pathways involved in macrophage recruitment and polarization in the kidneys, including the key cytokines and transcription factors that promote M1 and M2 polarization. In addition, we discuss the latest clinical studies investigating macrophages in DKD and explore the potential of hypoglycemic drugs for modulating macrophage polarization. By gaining a deeper understanding of the mechanisms that regulate macrophage polarization in DKD, we may identify novel therapeutic targets for this debilitating complication of diabetes. This review provides valuable insights into the complex interplay between macrophages and DKD, shedding light on the latest developments in this important area of research. This review aims to enhance understanding of the role that macrophages play in the pathogenesis of DKD.
Insights
Macrophages are key immune cells in diabetic kidney disease (DKD). Understanding their polarization into M1 or M2 types may reveal new treatments for this diabetes complication.
Area of Science:
- Immunology
- Nephrology
- Endocrinology
Background:
- Diabetic kidney disease (DKD) is a major diabetes complication affecting millions globally.
- Macrophages are critical immune cells implicated in DKD development and progression.
Purpose of the Study:
- To comprehensively review the role of macrophages in DKD pathogenesis.
- To explore macrophage polarization into M1 and M2 phenotypes within the kidney.
- To examine signaling pathways, clinical studies, and therapeutic potential related to macrophages in DKD.
Main Methods:
- Literature review of existing research on macrophages in DKD.
- Analysis of signaling pathways regulating macrophage recruitment and polarization.
- Evaluation of clinical studies and potential therapeutic interventions, including hypoglycemic drugs.
Main Results:
- Macrophages exhibit distinct M1 (proinflammatory) and M2 (anti-inflammatory) polarization states in DKD.
- Specific cytokines and transcription factors drive M1/M2 polarization in renal macrophages.
- Hypoglycemic drugs show potential for modulating macrophage polarization in DKD.
Conclusions:
- Macrophages play a complex, multifaceted role in the pathogenesis of DKD.
- Targeting macrophage polarization presents a promising therapeutic strategy for DKD.
- Further research into macrophage mechanisms can lead to novel treatments for diabetic complications.
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