Cross Talks between Oxidative Stress, Inflammation and Epigenetics in Diabetic Retinopathy

Diabetic retinopathy, one of the most devastating complications of diabetes, is a multifactorial progressing disease with a very complex etiology. Although many metabolic, molecular, functional and structural changes have been identified in the retina and its vasculature, the exact molecular mechani...

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Main Author: Renu A. Kowluru
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/12/2/300
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author Renu A. Kowluru
author_facet Renu A. Kowluru
author_sort Renu A. Kowluru
collection DOAJ
description Diabetic retinopathy, one of the most devastating complications of diabetes, is a multifactorial progressing disease with a very complex etiology. Although many metabolic, molecular, functional and structural changes have been identified in the retina and its vasculature, the exact molecular mechanism of its pathogenesis still remains elusive. Sustained high-circulating glucose increases oxidative stress in the retina and also activates the inflammatory cascade. Free radicals increase inflammatory mediators, and inflammation can increase production of free radicals, suggesting a positive loop between them. In addition, diabetes also facilitates many epigenetic modifications that can influence transcription of a gene without changing the DNA sequence. Several genes associated with oxidative stress and inflammation in the pathogenesis of diabetic retinopathy are also influenced by epigenetic modifications. This review discusses cross-talks between oxidative stress, inflammation and epigenetics in diabetic retinopathy. Since epigenetic changes are influenced by external factors such as environment and lifestyle, and they can also be reversed, this opens up possibilities for new strategies to inhibit the development/progression of this sight-threatening disease.
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spelling doaj.art-92cd5aea65f54cd5b9c7bf1100f13b622023-11-30T21:40:32ZengMDPI AGCells2073-44092023-01-0112230010.3390/cells12020300Cross Talks between Oxidative Stress, Inflammation and Epigenetics in Diabetic RetinopathyRenu A. Kowluru0Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, Detroit, MI 48201, USADiabetic retinopathy, one of the most devastating complications of diabetes, is a multifactorial progressing disease with a very complex etiology. Although many metabolic, molecular, functional and structural changes have been identified in the retina and its vasculature, the exact molecular mechanism of its pathogenesis still remains elusive. Sustained high-circulating glucose increases oxidative stress in the retina and also activates the inflammatory cascade. Free radicals increase inflammatory mediators, and inflammation can increase production of free radicals, suggesting a positive loop between them. In addition, diabetes also facilitates many epigenetic modifications that can influence transcription of a gene without changing the DNA sequence. Several genes associated with oxidative stress and inflammation in the pathogenesis of diabetic retinopathy are also influenced by epigenetic modifications. This review discusses cross-talks between oxidative stress, inflammation and epigenetics in diabetic retinopathy. Since epigenetic changes are influenced by external factors such as environment and lifestyle, and they can also be reversed, this opens up possibilities for new strategies to inhibit the development/progression of this sight-threatening disease.https://www.mdpi.com/2073-4409/12/2/300diabetic retinopathyepigeneticsinflammationoxidative stress
spellingShingle Renu A. Kowluru
Cross Talks between Oxidative Stress, Inflammation and Epigenetics in Diabetic Retinopathy
Cells
diabetic retinopathy
epigenetics
inflammation
oxidative stress
title Cross Talks between Oxidative Stress, Inflammation and Epigenetics in Diabetic Retinopathy
title_full Cross Talks between Oxidative Stress, Inflammation and Epigenetics in Diabetic Retinopathy
title_fullStr Cross Talks between Oxidative Stress, Inflammation and Epigenetics in Diabetic Retinopathy
title_full_unstemmed Cross Talks between Oxidative Stress, Inflammation and Epigenetics in Diabetic Retinopathy
title_short Cross Talks between Oxidative Stress, Inflammation and Epigenetics in Diabetic Retinopathy
title_sort cross talks between oxidative stress inflammation and epigenetics in diabetic retinopathy
topic diabetic retinopathy
epigenetics
inflammation
oxidative stress
url https://www.mdpi.com/2073-4409/12/2/300
work_keys_str_mv AT renuakowluru crosstalksbetweenoxidativestressinflammationandepigeneticsindiabeticretinopathy