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Published on: June 2, 2019
Nox4 as a novel therapeutic target for diabetic vascular complications
Dongxia Wang1, Jiaying Li2, Gang Luo3
1Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, Wuhan, 430030, China; Department of Nutrition and Food Hygiene, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, 050017, China.
Abstract:
Diabetic vascular complications can affect both microvascular and macrovascular. Diabetic microvascular complications, such as diabetic nephropathy, diabetic retinopathy, diabetic neuropathy, and diabetic cardiomyopathy, are believed to be caused by oxidative stress. The Nox family of NADPH oxidases is a significant source of reactive oxygen species and plays a crucial role in regulating redox signaling, particularly in response to high glucose and diabetes mellitus. This review aims to provide an overview of the current knowledge about the role of Nox4 and its regulatory mechanisms in diabetic microangiopathies. Especially, the latest novel advances in the upregulation of Nox4 that aggravate various cell types within diabetic kidney disease will be highlighted. Interestingly, this review also presents the mechanisms by which Nox4 regulates diabetic microangiopathy from novel perspectives such as epigenetics. Besides, we emphasize Nox4 as a therapeutic target for treating microvascular complications of diabetes and summarize drugs, inhibitors, and dietary components targeting Nox4 as important therapeutic measures in preventing and treating diabetic microangiopathy. Additionally, this review also sums up the evidence related to Nox4 and diabetic macroangiopathy.
Insights
Oxidative stress from Nox4 contributes to diabetic microvascular complications like kidney disease. Targeting Nox4 with drugs or diet may prevent and treat these serious diabetes issues.
Area of Science:
- Biochemistry
- Molecular Biology
- Pathophysiology
Background:
- Diabetic vascular complications affect microvascular and macrovascular systems.
- Oxidative stress is implicated in diabetic microvascular complications, including nephropathy, retinopathy, neuropathy, and cardiomyopathy.
- The Nox family of NADPH oxidases is a key source of reactive oxygen species (ROS) and regulates redox signaling in diabetes.
Purpose of the Study:
- To review the role and regulation of Nox4 in diabetic microangiopathies.
- To highlight novel advances in Nox4 upregulation in diabetic kidney disease.
- To explore new mechanisms, including epigenetics, by which Nox4 regulates diabetic microangiopathy.
Main Methods:
- Literature review of current knowledge on Nox4.
- Analysis of recent findings on Nox4 upregulation in diabetic kidney disease.
- Examination of epigenetic and other novel regulatory mechanisms of Nox4.
Main Results:
- Nox4 upregulation exacerbates various cell types in diabetic kidney disease.
- Nox4 plays a significant role in the pathogenesis of diabetic microangiopathy through various regulatory mechanisms.
- Evidence links Nox4 to diabetic macroangiopathy.
Conclusions:
- Nox4 is a critical mediator of diabetic microvascular complications.
- Targeting Nox4 presents a promising therapeutic strategy for diabetic microangiopathy.
- Further research into Nox4 regulation and therapeutic interventions is warranted.
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