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Updated: Sep 10, 2025

Assessment of Cellular Oxidation using a Subcellular Compartment-Specific Redox-Sensitive Green Fluorescent Protein
Published on: June 18, 2020
Molecular Duality of OGG1: From Genomic Guardian to Redox-Sensitive Modulator in Diseases
Ranwei Zhong1, Weiran Zhang1, Xiangping Qu1,2,3
1Department of Physiology, Xiangya School of Basic Medical Sciences, Central South University, Changsha 410078, China.
Abstract:
Inflammation, malignant tumors, and age-related disorders are all associated with oxidative DNA damage. 8-oxoguanine DNA glycosylase 1 (OGG1), which recognizes and repairs intracellular oxidative damage, was initially thought to play a pivotal role in cellular repair of such damage. However, a growing body of evidence now indicates that OGG1 not only participates in DNA oxidative damage repair but also possesses transcription factor activity, closely linked to the development and progression of oxidative DNA damage-related diseases. We propose that OGG1 can repair damaged DNA, while in certain diseases, OGG1 promotes transcription and exacerbates disease progression. This review discusses the mechanisms of action of OGG1 and proposes it as an emerging therapeutic target for curing the aforementioned diseases.
Insights
8-oxoguanine DNA glycosylase 1 (OGG1) repairs oxidative DNA damage but can also promote transcription in diseases. This dual role highlights OGG1 as a potential therapeutic target for inflammation and tumors.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- Oxidative DNA damage is linked to inflammation, cancer, and aging.
- 8-oxoguanine DNA glycosylase 1 (OGG1) is known for repairing oxidative DNA damage.
- Emerging evidence suggests OGG1 has additional roles beyond DNA repair.
Purpose of the Study:
- To review the multifaceted roles of OGG1.
- To explore OGG1's function as a transcription factor.
- To identify OGG1 as a therapeutic target for oxidative DNA damage-related diseases.
Main Methods:
- Literature review of OGG1's functions.
- Analysis of OGG1's involvement in DNA repair pathways.
- Investigation of OGG1's transcription factor activity.
Main Results:
- OGG1 actively repairs oxidative DNA damage.
- OGG1 exhibits transcription factor activity in certain disease contexts.
- This dual function influences disease development and progression.
Conclusions:
- OGG1 plays a critical role in both DNA repair and transcriptional regulation.
- Dysregulation of OGG1 contributes to diseases like cancer and inflammation.
- Targeting OGG1 presents a promising therapeutic strategy for related disorders.
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