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Robeska E, Lalanne K, Vianna F, Sutcu HH, Khobta A, Busso D, Radicella JP, Campalans A, Baldeyron C. Targeted nuclear irradiation with a proton microbeam induces oxidative DNA base damage and triggers the recruitment of DNA glycosylases OGG1 and NTH1. DNA Repair (Amst) 2024; 133:103610. [PMID: 38101146 DOI: 10.1016/j.dnarep.2023.103610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 11/10/2023] [Accepted: 11/30/2023] [Indexed: 12/17/2023]
Abstract
DNA is the major target of radiation therapy of malignant tumors. Ionizing radiation (IR) induces a variety of DNA lesions, including chemically modified bases and strand breaks. The use of proton beam therapy for cancer treatment is ramping up, as it is expected to reduce normal tissue damage. Thus, it is important to understand the molecular mechanisms of recognition, signaling, and repair of DNA damage induced by protons in the perspective of assessing not only the risk associated with human exposure to IR but also the possibility to improve the efficacy of therapy. Here, we used targeted irradiation of nuclear regions of living cells with controlled number of protons at a high spatio-temporal resolution to detect the induced base lesions and characterize the recruitment kinetics of the specific DNA glycosylases to DNA damage sites. We show that localized irradiation with 4 MeV protons induces, in addition to DNA double strand breaks (DSBs), the oxidized bases 7,8-dihydro-8-oxoguanine (8-oxoG) and thymine glycol (TG) at the site of irradiation. Consistently, the DNA glycosylases OGG1 and NTH1, capable of excising 8-oxoG and TG, respectively, and initiating the base excision repair (BER) pathway, are recruited to the site of damage. To our knowledge, this is the first direct evidence indicating that proton microbeams induce oxidative base damage, and thus implicating BER in the repair of DNA lesions induced by protons.
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Affiliation(s)
- Elena Robeska
- Université Paris-Saclay, iRCM/IBFJ, CEA, Genetic Stability, Stem Cells and Radiation, F-92260 Fontenay-aux-Roses, France; Université Paris Cité, iRCM/IBFJ, CEA, Genetic Stability, Stem Cells and Radiation, F-92260 Fontenay-aux-Roses, France
| | - Kévin Lalanne
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE/SDOS/LMDN, Cadarache, F-13115 Saint-Paul-Lez-Durance, France
| | - François Vianna
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE/SDOS/LMDN, Cadarache, F-13115 Saint-Paul-Lez-Durance, France
| | - Haser Hasan Sutcu
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE/SERAMED/LRAcc, F-92262 Fontenay aux Roses, France
| | - Andriy Khobta
- Institute of Nutritional Sciences, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Didier Busso
- Université Paris Cité et Université Paris-Saclay, INSERM, CEA, iRCM/IBFJ, Genetic Stability, Stem Cells and Radiation, F-92260 Fontenay-aux-Roses, France
| | - J Pablo Radicella
- Université Paris-Saclay, iRCM/IBFJ, CEA, Genetic Stability, Stem Cells and Radiation, F-92260 Fontenay-aux-Roses, France; Université Paris Cité, iRCM/IBFJ, CEA, Genetic Stability, Stem Cells and Radiation, F-92260 Fontenay-aux-Roses, France
| | - Anna Campalans
- Université Paris-Saclay, iRCM/IBFJ, CEA, Genetic Stability, Stem Cells and Radiation, F-92260 Fontenay-aux-Roses, France; Université Paris Cité, iRCM/IBFJ, CEA, Genetic Stability, Stem Cells and Radiation, F-92260 Fontenay-aux-Roses, France.
| | - Céline Baldeyron
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE/SERAMED/LRAcc, F-92262 Fontenay aux Roses, France.
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Jung KW, Kwon S, Jung JH, Lim S, Bahn YS. Functional Characterization of DNA N-Glycosylase Ogg1 and Ntg1 in DNA Damage Stress of Cryptococcus neoformans. J Microbiol 2023; 61:981-992. [PMID: 38055144 DOI: 10.1007/s12275-023-00092-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 10/31/2023] [Indexed: 12/07/2023]
Abstract
Reactive oxygen species induce DNA strand breaks and DNA oxidation. DNA oxidation leads to DNA mismatches, resulting in mutations in the genome if not properly repaired. Homologous recombination (HR) and non-homologous end-joining (NHEJ) are required for DNA strand breaks, whereas the base excision repair system mainly repairs oxidized DNAs, such as 8-oxoguanine and thymine glycol, by cleaving the glycosidic bond, inserting correct nucleotides, and sealing the gap. Our previous studies revealed that the Rad53-Bdr1 pathway mainly controls DNA strand breaks through the regulation of HR- and NHEJ-related genes. However, the functional roles of genes involved in the base excision repair system remain elusive in Cryptococcus neoformans. In the present study, we identified OGG1 and NTG1 genes in the base excision repair system of C. neoformans, which are involved in DNA oxidation repair. The expression of OGG1 was induced in a Hog1-dependent manner under oxidative stress. On the other hand, the expression of NTG1 was strongly induced by DNA damage stress in a Rad53-independent manner. We demonstrated that the deletion of NTG1, but not OGG1, resulted in elevated susceptibility to DNA damage agents and oxidative stress inducers. Notably, the ntg1Δ mutant showed growth defects upon antifungal drug treatment. Although deletion of OGG1 or NTG1 did not increase mutation rates, the mutation profile of each ogg1Δ and ntg1Δ mutant was different from that of the wild-type strain. Taken together, we found that DNA N-glycosylase Ntg1 is required for oxidative DNA damage stress and antifungal drug resistance in C. neoformans.
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Affiliation(s)
- Kwang-Woo Jung
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea.
| | - Sunhak Kwon
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jong-Hyun Jung
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea
| | - Sangyong Lim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea
- Department of Radiation Science, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Yong-Sun Bahn
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
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3
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Fan J, Lv X, Yang S, Geng S, Yang J, Zhao Y, Zhang Z, Liu Z, Guan G, Luo J, Zeng Q, Yin H, Niu Q. OGG1 inhibition suppresses African swine fever virus replication. Virol Sin 2023; 38:96-107. [PMID: 36435451 PMCID: PMC10006199 DOI: 10.1016/j.virs.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 11/18/2022] [Indexed: 11/26/2022] Open
Abstract
African swine fever virus (ASFV) is an important pathogen that causes a highly contagious and lethal disease in swine, for which neither a vaccine nor treatment is available. The DNA repair enzyme 8-oxoguanine DNA glycosylase 1 (OGG1), which excises the oxidative base lesion 8-oxo-7,8-dihydroguanine (8-oxoG), has been linked to the pathogenesis of different diseases associated with viral infections. However, the role of OGG1-base excision repair (BER) in ASFV infection has been poorly investigated. Our study aimed to characterize the alteration of host reactive oxygen species (ROS) and OGG1 and to analyse the role of OGG1 in ASFV infection. We found that ASFV infection induced high levels and dynamic changes in ROS and 8-oxoG and consistently increased the expression of OGG1. Viral yield, transcription level, and protein synthesis were reduced in ASFV-infected primary alveolar macrophages (PAMs) treated by TH5487 or SU0268 inhibiting OGG1. The expression of BER pathway associated proteins of ASFV was also suppressed in OGG1-inhibited PAMs. Furthermore, OGG1 was found to negatively regulate interferon β (IFN-β) production during ASFV infection and IFN-β could be activated by OGG1 inhibition with TH5487 and SU0268, which blocked OGG1 binding to 8-oxoG. Additionally, the interaction of OGG1 with viral MGF360-14-L protein could disturb IFN-β production to further affect ASFV replication. These results suggest that OGG1 plays the crucial role in successful viral infection and OGG1 inhibitors SU0268 or TH5487 could be used as antiviral agents for ASFV infection.
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Affiliation(s)
- Jie Fan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China; African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Xinqian Lv
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Saixia Yang
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Shuxian Geng
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China; African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Jifei Yang
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Yaru Zhao
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Zhonghui Zhang
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Zhijie Liu
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Guiquan Guan
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Jianxun Luo
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China
| | - Qiaoying Zeng
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China.
| | - Hong Yin
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou, 225009, China
| | - Qingli Niu
- African Swine Fever Regional Laboratory of China (Lanzhou), State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, China.
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4
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Wallner O, Cázares-Körner A, Scaletti ER, Masuyer G, Bekkhus T, Visnes T, Mamonov K, Ortis F, Lundbäck T, Volkova M, Koolmeister T, Wiita E, Loseva O, Pandey M, Homan E, Benítez-Buelga C, Davies J, Scobie M, Warpman Berglund U, Kalderén C, Stenmark P, Helleday T, Michel M. Optimization of N-Piperidinyl-Benzimidazolone Derivatives as Potent and Selective Inhibitors of 8-Oxo-Guanine DNA Glycosylase 1. ChemMedChem 2023; 18:e202200310. [PMID: 36128847 PMCID: PMC10092094 DOI: 10.1002/cmdc.202200310] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/20/2022] [Indexed: 01/24/2023]
Abstract
8-oxo Guanine DNA Glycosylase 1 is the initiating enzyme within base excision repair and removes oxidized guanines from damaged DNA. Since unrepaired 8-oxoG could lead to G : C→T : A transversion, base removal is of utmost importance for cells to ensure genomic integrity. For cells with elevated levels of reactive oxygen species this dependency is further increased. In the past we and others have validated OGG1 as a target for inhibitors to treat cancer and inflammation. Here, we present the optimization campaign that led to the broadly used tool compound TH5487. Based on results from a small molecule screening campaign, we performed hit to lead expansion and arrived at potent and selective substituted N-piperidinyl-benzimidazolones. Using X-ray crystallography data, we describe the surprising binding mode of the most potent member of the class, TH8535. Here, the N-Piperidinyl-linker adopts a chair instead of a boat conformation which was found for weaker analogues. We further demonstrate cellular target engagement and efficacy of TH8535 against a number of cancer cell lines.
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Affiliation(s)
- Olov Wallner
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Armando Cázares-Körner
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Emma Rose Scaletti
- Department of Biochemistry and Biophysics, Stockholm University, 10691, Stockholm, Sweden
| | - Geoffrey Masuyer
- Department of Biochemistry and Biophysics, Stockholm University, 10691, Stockholm, Sweden
| | - Tove Bekkhus
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Torkild Visnes
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden.,Department of Biotechnology and Nanomedicine, SINTEF Industry, 7465, Trondheim, Norway
| | - Kirill Mamonov
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Florian Ortis
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Thomas Lundbäck
- Chemical Biology Consortium Sweden (CBCS), Science for Life Laboratory, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Maria Volkova
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Tobias Koolmeister
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Elisée Wiita
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Olga Loseva
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Monica Pandey
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Evert Homan
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Carlos Benítez-Buelga
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | - Jonathan Davies
- Department of Biochemistry and Biophysics, Stockholm University, 10691, Stockholm, Sweden
| | - Martin Scobie
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden.,Oxcia AB, 113 34, Stockholm, Sweden
| | - Ulrika Warpman Berglund
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden.,Oxcia AB, 113 34, Stockholm, Sweden
| | - Christina Kalderén
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden.,Oxcia AB, 113 34, Stockholm, Sweden
| | - Pål Stenmark
- Department of Biochemistry and Biophysics, Stockholm University, 10691, Stockholm, Sweden.,Department of Experimental Medical Science, Lund University, 221 00, Lund, Sweden
| | - Thomas Helleday
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden.,Sheffield Cancer Centre, Department of Oncology and Metabolism, University of Sheffield, S10 2TN, Sheffield, UK
| | - Maurice Michel
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, 171 77, Stockholm, Sweden
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OGG1 in the Kidney: Beyond Base Excision Repair. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5774641. [PMID: 36620083 PMCID: PMC9822757 DOI: 10.1155/2022/5774641] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 01/01/2023]
Abstract
8-Oxoguanine DNA glycosylase (OGG1) is a repair protein for 8-oxoguanine (8-oxoG) in eukaryotic atopic DNA. Through the initial base excision repair (BER) pathway, 8-oxoG is recognized and excised, and subsequently, other proteins are recruited to complete the repair. OGG1 is primarily located in the cytoplasm and can enter the nucleus and mitochondria to repair damaged DNA or to exert epigenetic regulation of gene transcription. OGG1 is involved in a wide range of physiological processes, such as DNA repair, oxidative stress, inflammation, fibrosis, and autophagy. In recent years, studies have found that OGG1 plays an important role in the progression of kidney diseases through repairing DNA, inducing inflammation, regulating autophagy and other transcriptional regulation, and governing protein interactions and functions during disease and injury. In particular, the epigenetic effects of OGG1 in kidney disease have gradually attracted widespread attention. This study reviews the structure and biological functions of OGG1 and the regulatory mechanism of OGG1 in kidney disease. In addition, the possibility of OGG1 as a potential therapeutic target in kidney disease is discussed.
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Biological Functions of the DNA Glycosylase NEIL3 and Its Role in Disease Progression Including Cancer. Cancers (Basel) 2022; 14:cancers14235722. [PMID: 36497204 PMCID: PMC9737245 DOI: 10.3390/cancers14235722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/16/2022] [Accepted: 11/16/2022] [Indexed: 11/24/2022] Open
Abstract
The accumulation of oxidative DNA base damage can severely disrupt the integrity of the genome and is strongly associated with the development of cancer. DNA glycosylase is the critical enzyme that initiates the base excision repair (BER) pathway, recognizing and excising damaged bases. The Nei endonuclease VIII-like 3 (NEIL3) is an emerging DNA glycosylase essential in maintaining genome stability. With an in-depth study of the structure and function of NEIL3, we found that it has properties related to the process of base damage repair. For example, it not only prefers the base damage of single-stranded DNA (ssDNA), G-quadruplex and DNA interstrand crosslinks (ICLs), but also participates in the maintenance of replication fork stability and telomere integrity. In addition, NEIL3 is strongly associated with the progression of cancers and cardiovascular and neurological diseases, is incredibly significantly overexpressed in cancers, and may become an independent prognostic marker for cancer patients. Interestingly, circNEIL3, a circular RNA of exon-encoded origin by NEIL3, also promotes the development of multiple cancers. In this review, we have summarized the structure and the characteristics of NEIL3 to repair base damage. We have focused on NEIL3 and circNEIL3 in cancer development, progression and prognosis.
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Inhibition of 8-oxoguanine DNA glycosylase (OGG1) expression suppresses polycystic ovarian syndrome via the NF-κB signaling pathway. Reprod Biol 2022; 22:100679. [PMID: 35961097 DOI: 10.1016/j.repbio.2022.100679] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/06/2022] [Accepted: 07/25/2022] [Indexed: 11/20/2022]
Abstract
It has been reported that oxidative stress and chronic inflammation may be involved in the pathogenesis of polycystic ovary syndrome (PCOS). 8-oxoguanine DNA glycosylase (OGG1) is the main glycosylase that catalyzes the excision of DNA oxidation products. In this study, we investigated the role and potential mechanisms of OGG1 in the development of PCOS. We first analyzed OGG1 levels in serum and follicular fluid (FF) of PCOS patients, and significantly elevated OGG1 levels were noted in PCOS patients. We similarly observed a significant upregulation of OGG1 expression levels in ovarian tissue of the dehydroepiandrosterone (DHEA)-induced PCOS rat model. In addition, increased apoptosis and increased production of reactive oxygen species (ROS) were observed after the addition of OGG1-specific inhibitor (TH5487) in human granulosa-like tumor cell line (KGN) cells following a concentration gradient, along with a significant decrease in mRNA levels of inflammatory factors such as CXCL2, IL-6, MCP1, IL-1β, and IL-18. Significant decreases in protein phosphorylation levels of P65 and IκBα were also observed in cells. In addition, we found a significant positive correlation between OGG1 and IL-6 expression levels in human and DHEA-induced PCOS rat models. In conclusion, our results suggest that OGG1 might be involved in the pathogenesis of PCOS by regulating the secretion of IL-6 through NF-κB signaling pathway, and there might be a balance between the inhibition of oxidative stress and the promotion of chronic inflammation by OGG1 on KGN cells.
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Zhang H, Jiang PJ, Lv MY, Zhao YH, Cui J, Chen J. OGG1 contributes to hepatocellular carcinoma by promoting cell cycle-related protein expression and enhancing DNA oxidative damage repair in tumor cells. J Clin Lab Anal 2022; 36:e24561. [PMID: 35723423 PMCID: PMC9279955 DOI: 10.1002/jcla.24561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/08/2022] [Accepted: 05/26/2022] [Indexed: 02/05/2023] Open
Abstract
Background This study aimed to analyze the expression of 8‐oxoguanine DNA glycosylase (OGG1) in patients with hepatocellular carcinoma (HCC) and its effect on prognosis by bioinformatics techniques and to determine its possible carcinogenic mechanism through data mining. Methods The difference in OGG1 expression between healthy people and HCC patients was searched and analyzed by TCGA and GEO databases, and the effect of OGG1 on prognosis was judged by survival analysis. Meanwhile, the possible molecular mechanism of OGG1 in the tumorigenesis and development of HCC was explored by GO analysis, KEGG analysis, immune infiltration analysis, protein–protein interaction network, promoter methylation analysis, and so forth. Quantitative polymerase chain reaction (qPCR) was used to examine the gene expression in 36 pairs of HCC tissues and adjacent tissues. Results The expression of OGG1 in HCC patients was higher than that in healthy people, and the overexpression of OGG1 might stimulate cell proliferation by increasing the activity of cell cycle‐related proteins. Conclusion The alteration of OGG1 was significantly correlated with the tumorigenesis and development of HCC. OGG1 is expected to be a new biomarker for evaluating the prognosis of HCC and a new target for the treatment of HCC.
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Affiliation(s)
- He Zhang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Peng-Jun Jiang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Meng-Yuan Lv
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yan-Hua Zhao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Ju Cui
- Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Jie Chen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
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9
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Ling H, Song C, Fang Y, Yin Y, Wu Z, Wang Y, Xu Z, Gao S, Li A, Liu G. TH5487, a small molecule inhibitor of OGG1, attenuates pulmonary fibrosis by NEDD4L-mediated OGG1 degradation. Chem Biol Interact 2022; 362:109999. [PMID: 35654123 DOI: 10.1016/j.cbi.2022.109999] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 05/28/2022] [Indexed: 11/29/2022]
Abstract
Pulmonary fibrosis is a highly aggressive and lethal disease that currently lacks effective targeting therapies. Herein, we established a mouse model of pulmonary fibrosis induced by intratracheal instillation of bleomycin (BLM) in wild-type (WT) and 8-oxoguanine DNA glycosylase-1 (OGG1) knockout (Ogg1-/-) mice. TH5487, a specific small-molecule inhibitor of OGG1, was found to ameliorate BLM-induced pulmonary fibrosis in WT mice. Concomitantly, TH5487 treatment markedly suppressed the BLM-mediated alveolar epithelial-mesenchymal transition (EMT) and increase in OGG1 protein level in the lungs of WT mice. However, administration of TH5487 did not further improve this fibrotic transformation in Ogg1-/- mice. More importantly, adeno-associated virus-mediated lung-specific OGG1 overexpression accelerated alveolar EMT and the resultant fibrosis progression antagonized by TH5487 in the fibrotic lungs of WT mice, suggesting that the down-regulation of OGG1 protein level could be essential for TH5487 to exert its anti-fibrogenic function. Mechanism study in alveolar epithelial cells demonstrated that TH5487 treatment canceled TGF-β1-mediated suppression of NEDD4-like E3 ubiquitin ligase (NEDD4L), which ubiquitinated OGG1 and targeted it for proteasomal degradation. Furthermore, TH5487-mediated suppression of alveolar EMT and the fibrotic processes was counteracted by silencing OGG1 in TGF-β1-induced alveolar epithelial cells. Collectively, these data underline the potential of TH5487 as an effective anti-fibrotic agent for pulmonary fibrosis.
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Affiliation(s)
- Huayu Ling
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China; Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Chuge Song
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China; Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Yaowei Fang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China; Department of Cardiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Yu Yin
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China; Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Zijun Wu
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China; Department of Cardiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Yahong Wang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Zhiliang Xu
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Shenglan Gao
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Ao Li
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China.
| | - Gang Liu
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China.
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10
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Baquero JM, Marchena-Perea E, Mirabet R, Torres-Ruiz R, Blanco-Aparicio C, Rodríguez-Perales S, Helleday T, Benítez-Buelga C, Benítez J, Osorio A. OGG1 Inhibition Triggers Synthetic Lethality and Enhances The Effect of PARP Inhibitor Olaparib in BRCA1-Deficient TNBC Cells. Front Oncol 2022; 12:888810. [PMID: 35619904 PMCID: PMC9127384 DOI: 10.3389/fonc.2022.888810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/13/2022] [Indexed: 11/13/2022] Open
Abstract
Background PARP1 plays a critical role in the base excision repair (BER) pathway, and PARP1 inhibition leads to specific cell death, through a synthetic lethal interaction, in the context of BRCA1/2 deficiency. To date, up to five different PARP inhibitors (PARPi), have been approved, nevertheless, the acquisition of resistance to PARPi is common and there is increasing interest in enhancing responses and expand their use to other tumour types. Methods We hypothesized that other BER members could be additional synthetic lethal partners with mutated BRCA genes. To test this, we decided to evaluate the glycosylase OGG1 as a potential candidate, by treating BRCA1 proficient and deficient breast cancer cells with PARPi olaparib and the OGG1 inhibitor TH5478. Results Knocking out BRCA1 in triple-negative breast cancer cell lines causes hypersensitivity to the OGG1 inhibitor TH5487. Besides, TH5487 enhances the sensitivity to the PARP inhibitor olaparib, especially in the context of BRCA1 deficiency, reflecting an additive interaction. Discussion These results provide the first evidence that OGG1 inhibition is a promising new synthetic lethality strategy in BRCA1-deficient cells, and could lead to a new framework for the treatment of hereditary breast and ovarian cancer.
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Affiliation(s)
- Juan Miguel Baquero
- Human Genetics Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Erik Marchena-Perea
- Familial Cancer Clinical Unit, Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Rocío Mirabet
- Human Genetics Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Raúl Torres-Ruiz
- Molecular Cytogenetics Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain.,Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - Carmen Blanco-Aparicio
- Experimental Therapeutics Program, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Sandra Rodríguez-Perales
- Molecular Cytogenetics Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Thomas Helleday
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden.,Sheffield Cancer Centre, Department of Oncology and Metabolism, University of Sheffield, Sheffield, United Kingdom
| | - Carlos Benítez-Buelga
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Javier Benítez
- Human Genetics Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain.,Spanish Network on Rare Diseases (CIBERER), Madrid, Spain
| | - Ana Osorio
- Human Genetics Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain.,Familial Cancer Clinical Unit, Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain.,Spanish Network on Rare Diseases (CIBERER), Madrid, Spain
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11
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Suzuki T, Zaima Y, Fujikawa Y, Fukushima R, Kamiya H. Paradoxical role of the major DNA repair protein, OGG1, in action-at-a-distance mutation induction by 8-oxo-7,8-dihydroguanine. DNA Repair (Amst) 2022; 111:103276. [DOI: 10.1016/j.dnarep.2022.103276] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/17/2022] [Accepted: 01/19/2022] [Indexed: 12/21/2022]
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12
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Higgs EB, Godschalk R, Langie SAS, van Schooten FJ, Hodges NJ. Upregulation of mNEIL3 in Ogg1-null cells is a potential backup mechanism for 8-oxoG repair. Mutagenesis 2021; 36:437-444. [PMID: 34644377 DOI: 10.1093/mutage/geab038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 10/12/2021] [Indexed: 11/13/2022] Open
Abstract
Reactive oxygen species formation and resultant oxidative damage to DNA are ubiquitous events in cells, the homeostasis of which can be dysregulated in a range of pathological conditions. Base excision repair (BER) is the primary repair mechanism for oxidative genomic DNA damage. One prevalent oxidised base modification, 8-oxoguanine (8-oxoG), is recognised by 8-oxoguanine glycosylase-1 (OGG1) initiating removal and repair via BER. Surprisingly, Ogg1 null mouse embryonic fibroblasts (mOgg1-/- MEFs) do not accumulate 8-oxoG in the genome to the extent expected. This suggests that there are backup repair mechanisms capable of repairing 8-oxoG in the absence of OGG1. In the current study, we identified components of NER (Ercc1, Ercc4, Ercc5), BER (Lig1, Tdg, Nthl1, Mpg, Mgmt, NEIL3), MMR (Mlh1, Msh2, Msh6) and DSB (Brip1, Rad51d, Prkdc) pathways that are transcriptionally elevated in mOgg1-/- MEFs. Interestingly, all three nucleotide excision repair genes identified: Ercc1 (2.5 ± 0.2-fold), Ercc4 (1.5 ± 0.1-fold) and Ercc5 (1.7 ± 0.2-fold) have incision activity. There was also a significant functional increase in NER activity (42.0 ± 7.9%) compared to WT MEFs. We also observed upregulation of both Neil3 mRNA (37.9 ± 1.6-fold) and protein in mOgg1-/- MEFs. This was associated with a 3.4 ± 0.4-fold increase in NEIL3 substrate sites in genomic DNA of cells treated with BSO, consistent with the ability of NEIL3 to remove 8-oxoG oxidation products from genomic DNA. In conclusion, we suggest that in Ogg1-null cells, upregulation of multiple DNA repair proteins including incision components of the NER pathway and Neil3 are important compensatory responses to prevent the accumulation of genomic 8-oxoG.
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Affiliation(s)
- Ellen B Higgs
- School of Biosciences, The University of Birmingham, Birmingham, UK.,Department of Pharmacology & Toxicology, School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Roger Godschalk
- Department of Pharmacology & Toxicology, School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Sabine A S Langie
- Department of Pharmacology & Toxicology, School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Frederik-Jan van Schooten
- Department of Pharmacology & Toxicology, School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Nikolas J Hodges
- School of Biosciences, The University of Birmingham, Birmingham, UK
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