Broadening horizons: the contribution of mitochondria-associated endoplasmic reticulum membrane (MAM) dysfunction in diabetic kidney disease
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Updated: Jul 15, 2025

Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice
Published on: May 2, 2025
Yong Liu1,2,3,4, Yingjin Qiao5, Shaokang Pan1,2,3,4
1Research Institute of Nephrology, Zhengzhou University, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, P. R. China.
Abstract:
Diabetic kidney disease (DKD) is a global health issue that presents a complex pathogenesis and limited treatment options. To provide guidance for precise therapies, it is crucial to accurately identify the pathogenesis of DKD. Several studies have recognized that mitochondrial and endoplasmic reticulum (ER) dysfunction are key drivers of the pathogenesis of DKD. The mitochondria-associated ER membrane (MAM) is a dynamic membrane contact site (MSC) that connects the ER and mitochondria and is essential in maintaining the normal function of the two organelles. MAM is involved in various cellular processes, including lipid synthesis and transport, calcium homeostasis, mitochondrial fusion and fission, and ER stress. Meanwhile, recent studies confirm that MAM plays a significant role in the pathogenesis of DKD by regulating glucose metabolism, lipid metabolism, inflammation, ER stress, mitochondrial fission and fusion, and autophagy. Herein, this review aims to provide a comprehensive summary of the physiological function of MAMs and their impact on the progression of DKD. Subsequently, we discuss the trend of pharmaceutical studies that target MAM resident proteins for treating DKD. Furthermore, we also explore the future development prospects of MAM in DKD research, thereby providing a new perspective for basic studies and clinical treatment of DKD.
Insights
Mitochondria-associated ER membranes (MAM) are crucial in diabetic kidney disease (DKD) pathogenesis. Targeting MAM proteins offers a promising therapeutic strategy for DKD treatment.
Area of Science:
- Cell Biology
- Nephrology
- Metabolic Diseases
Background:
- Diabetic kidney disease (DKD) is a major global health concern with complex causes and few treatments.
- Mitochondrial and endoplasmic reticulum (ER) dysfunction are key contributors to DKD pathogenesis.
- Mitochondria-associated ER membrane (MAM) is a critical interface connecting ER and mitochondria, vital for cellular functions.
Purpose of the Study:
- To comprehensively review the physiological roles of MAMs.
- To elucidate the impact of MAMs on DKD progression.
- To discuss therapeutic strategies targeting MAMs for DKD treatment.
Main Methods:
- Literature review of existing studies on MAMs and DKD.
- Analysis of MAM's role in cellular processes relevant to DKD.
- Exploration of current and future pharmaceutical research targeting MAMs.
Main Results:
- MAM regulates key pathways in DKD, including glucose/lipid metabolism, inflammation, ER stress, mitochondrial dynamics, and autophagy.
- Dysfunction of MAM significantly contributes to the development and progression of DKD.
- Targeting MAM resident proteins shows potential for novel DKD therapies.
Conclusions:
- MAM plays a pivotal role in DKD pathogenesis through its regulation of cellular homeostasis.
- Pharmaceutical targeting of MAM offers a promising avenue for developing precise therapies for DKD.
- Further research into MAM's role in DKD can provide new insights for clinical treatment.
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