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Unveiling the podocyte-protective effect of sodium-glucose cotransporter-2 inhibitors
Buchun Jiang1,2, Zhiwen Cheng2,3, Dongjie Wang1,2
1Department of Nephrology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Abstract:
The renoprotective effects of sodium-glucose cotransporter-2 (SGLT2) inhibitors in both diabetic and nondiabetic nephropathy are widely recognized due to results from randomized controlled trials notably the DAPA-CKD and EMPA-KIDNEY trials. Research exploring the mechanisms of renoprotection indicates that SGLT2 inhibitors exert protective effects on podocytes by enhancing autophagy and stabilizing the structure of podocytes and basement membranes. Furthermore, reductions in lipotoxicity, oxidative stress, and inflammation have been confirmed with SGLT2 inhibitor treatment. Recent clinical studies have also begun to explore the effects of SGLT2 inhibitors on nondiabetic podocytopathies, such as focal segmental glomerulosclerosis. In this review, we summarize clinical and laboratory studies that focus on the podocyte-protective effects of SGLT2 inhibitors, exploring the potential for broader applications of this novel therapeutic agent in kidney disease.
Insights
Sodium-glucose cotransporter-2 (SGLT2) inhibitors protect kidneys in diabetic and nondiabetic kidney disease by safeguarding podocytes. These drugs reduce inflammation and oxidative stress, offering potential new treatments for various kidney conditions.
Area of Science:
- Nephrology
- Pharmacology
- Cell Biology
Background:
- Sodium-glucose cotransporter-2 (SGLT2) inhibitors are recognized for renoprotective effects in diabetic and nondiabetic nephropathy.
- Randomized controlled trials like DAPA-CKD and EMPA-KIDNEY support their efficacy.
Purpose of the Study:
- To review clinical and laboratory studies on the podocyte-protective effects of SGLT2 inhibitors.
- To explore the potential of SGLT2 inhibitors in broader kidney disease applications.
Main Methods:
- Literature review of clinical and laboratory studies.
- Analysis of mechanisms of SGLT2 inhibitor action on podocytes.
Main Results:
- SGLT2 inhibitors protect podocytes by enhancing autophagy and stabilizing podocyte/basement membrane structure.
- Treatment with SGLT2 inhibitors reduces lipotoxicity, oxidative stress, and inflammation.
- Emerging evidence supports SGLT2 inhibitor use in nondiabetic podocytopathies like FSGS.
Conclusions:
- SGLT2 inhibitors demonstrate significant podocyte-protective effects.
- These findings suggest broader therapeutic potential for SGLT2 inhibitors in managing kidney diseases.
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