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Orfanakos K, Alifieris CE, Verigos EK, Deligiorgi MV, Verigos KE, Panayiotidis MI, Nikolaou M, Trafalis DT. The Predictive Value of 8-Hydroxy-Deoxyguanosine (8-OHdG) Serum Concentrations in Irradiated Non-Small Cell Lung Carcinoma (NSCLC) Patients. Biomedicines 2024; 12:134. [PMID: 38255239 PMCID: PMC10813052 DOI: 10.3390/biomedicines12010134] [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: 11/26/2023] [Revised: 12/11/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Ionizing radiation is strongly linked to direct or indirect DNA damage, as with the production of reactive oxygen species (ROS), which in turn produce DNA damage products, such as 8-hydroxy-2-deoxyguanosine (8-OHdG). In this study, we aimed to investigate the formation of 8-OHdG after irradiation in patients with non-small cell cancer (NSCLC) and its use as a biomarker. Sixteen patients with squamous and thirty-six patients with non-squamous pathology were included. An enzyme-linked-immunosorbent assay (ELISA) was performed before and after radiation. A dose-dependent relationship was confirmed: 8-OHdG plasma concentrations, increased in the total of NSCLC patients and specifically with a linear correlation in non-squamous pathology; in squamous histology, after an initial increase, a significant decrease followed after 20 Gy dose of irradiation. The pretreatment total irradiated tumor volume (cm3) was positively correlated with 8-OHdG levels in patients with squamous histology. When plotting the 8-OHdG plasma concentration at a 10 Gy irradiation dose to the baseline, the AUC was 0.873 (95% CI 0.614-0.984), p < 0.0001, with an associated criterion value of >1378 as a cutoff (sensitivity 72.7%, specificity 100%). When normalizing this ratio to BSA, the associated criterion cutoff value was >708 (sensitivity of 100%, specificity 80%). Lastly, 8-OHdG levels were closely related with the development of radiation-induced toxicities.
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Affiliation(s)
- Kyriakos Orfanakos
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (K.O.); (M.V.D.); (K.E.V.); (D.T.T.)
- Department of Radiation Therapy, 401 General Military Hospital, 11525 Athens, Greece
| | - Constantinos E. Alifieris
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (K.O.); (M.V.D.); (K.E.V.); (D.T.T.)
- Department of Hepatobiliary and Transplant Surgery, St. Vincent’s University Hospital, D04 T6F4 Dublin, Ireland
| | - Emmanouil K. Verigos
- Department of Radiation Oncology, General Anticancer Oncology Hospital of Athens “O Agios Savvas”, 11522 Athens, Greece
| | - Maria V. Deligiorgi
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (K.O.); (M.V.D.); (K.E.V.); (D.T.T.)
| | - Kosmas E. Verigos
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (K.O.); (M.V.D.); (K.E.V.); (D.T.T.)
- Department of Radiation Therapy, 401 General Military Hospital, 11525 Athens, Greece
| | - Mihalis I. Panayiotidis
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia 2371, Cyprus
| | - Michail Nikolaou
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (K.O.); (M.V.D.); (K.E.V.); (D.T.T.)
| | - Dimitrios T. Trafalis
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (K.O.); (M.V.D.); (K.E.V.); (D.T.T.)
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Antioxidative, Anti-Inflammatory, Anti-Obesogenic, and Antidiabetic Properties of Tea Polyphenols-The Positive Impact of Regular Tea Consumption as an Element of Prophylaxis and Pharmacotherapy Support in Endometrial Cancer. Int J Mol Sci 2022; 23:ijms23126703. [PMID: 35743146 PMCID: PMC9224362 DOI: 10.3390/ijms23126703] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 02/01/2023] Open
Abstract
Endometrial cancer (EC) is second only to cervical carcinoma among the most commonly diagnosed malignant tumours of the female reproductive system. The available literature provides evidence for the involvement of 32 genes in the hereditary incidence of EC. The physiological markers of EC and coexisting diet-dependent maladies include antioxidative system disorders but also progressing inflammation; hence, the main forms of prophylaxis and pharmacotherapy ought to include a diet rich in substances aiding the organism’s response to this type of disorder, with a particular focus on ones suitable for lifelong consumption. Tea polyphenols satisfy those requirements due to their proven antioxidative, anti-inflammatory, anti-obesogenic, and antidiabetic properties. Practitioners ought to consider promoting tea consumption among individuals genetically predisposed for EC, particularly given its low cost, accessibility, confirmed health benefits, and above all, suitability for long-term consumption regardless of the patient’s age. The aim of this paper is to analyse the potential usability of tea as an element of prophylaxis and pharmacotherapy support in EC patients. The analysis is based on information available from worldwide literature published in the last 15 years.
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Chiorcea-Paquim AM. 8-oxoguanine and 8-oxodeoxyguanosine Biomarkers of Oxidative DNA Damage: A Review on HPLC-ECD Determination. Molecules 2022; 27:1620. [PMID: 35268721 PMCID: PMC8911600 DOI: 10.3390/molecules27051620] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/09/2022] [Accepted: 02/11/2022] [Indexed: 11/26/2022] Open
Abstract
Reactive oxygen species (ROS) are continuously produced in living cells due to metabolic and biochemical reactions and due to exposure to physical, chemical and biological agents. Excessive ROS cause oxidative stress and lead to oxidative DNA damage. Within ROS-mediated DNA lesions, 8-oxoguanine (8-oxoG) and its nucleotide 8-oxo-2'-deoxyguanosine (8-oxodG)-the guanine and deoxyguanosine oxidation products, respectively, are regarded as the most significant biomarkers for oxidative DNA damage. The quantification of 8-oxoG and 8-oxodG in urine, blood, tissue and saliva is essential, being employed to determine the overall effects of oxidative stress and to assess the risk, diagnose, and evaluate the treatment of autoimmune, inflammatory, neurodegenerative and cardiovascular diseases, diabetes, cancer and other age-related diseases. High-performance liquid chromatography with electrochemical detection (HPLC-ECD) is largely employed for 8-oxoG and 8-oxodG determination in biological samples due to its high selectivity and sensitivity, down to the femtomolar range. This review seeks to provide an exhaustive analysis of the most recent reports on the HPLC-ECD determination of 8-oxoG and 8-oxodG in cellular DNA and body fluids, which is relevant for health research.
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Affiliation(s)
- Ana-Maria Chiorcea-Paquim
- University of Coimbra, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), Department of Chemistry, 3004-535 Coimbra, Portugal;
- Instituto Pedro Nunes (IPN), 3030-199 Coimbra, Portugal
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4
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Miao Y, Rong M, Li M, He H, Zhang L, Zhang S, Liu C, Zhu Y, Deng YL, Chen PP, Zeng JY, Zhong R, Mei SR, Miao XP, Zeng Q. Serum concentrations of organochlorine pesticides, biomarkers of oxidative stress, and risk of breast cancer. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 286:117386. [PMID: 34051689 DOI: 10.1016/j.envpol.2021.117386] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 05/08/2021] [Accepted: 05/14/2021] [Indexed: 06/12/2023]
Abstract
Studies have documented that exposure to organochlorine pesticides (OCPs) is linked with breast cancer, but the underlying biological mechanisms are still unknown. This study included 313 women diagnosed with breast cancer and 313 controls in Wuhan, China, and measured 18 OCPs in serum and 3 oxidative stress biomarkers in urine. Multivariable adjusted regression models were used to evaluate the associations among OCPs, oxidative stress biomarkers, and breast cancer. The mediating effect of oxidative stress was assessed by mediation analysis. We observed that most OCPs were positively associated with risk of breast cancer (all FDR-P values < 0.05 or 0.10). Moreover, we found that p,p'-DDT, p,p'-DDD, dieldrin, heptachlor, and heptachlor epoxide were positively associated with 4-hydroxy-2-nonenal-mercapturic acid (HNE-MA) and 8-iso-prostaglandin F2α (8-isoPGF2α), which in turn were positively associated with risk of breast cancer. Mediation analysis indicated that HNE-MA and 8-isoPGF2ɑ mediated the positive associations between these OCPs and risk of breast cancer, with mediating proportion ranging from 6.23% to 19.9%. Our results suggest that lipid peroxidation may mediate the positive associations between OCP exposures and risk of breast cancer.
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Affiliation(s)
- Yu Miao
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Mao Rong
- Hubei Provincial Institute for Food Supervision and Test, Wuhan, Hubei, PR China; Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test, Wuhan, Hubei, PR China
| | - Min Li
- Hubei Provincial Institute for Food Supervision and Test, Wuhan, Hubei, PR China; Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test, Wuhan, Hubei, PR China
| | - Heng He
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Li Zhang
- Hubei Provincial Institute for Food Supervision and Test, Wuhan, Hubei, PR China; Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test, Wuhan, Hubei, PR China
| | - Shanshan Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Chong Liu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Ying Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Yan-Ling Deng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Pan-Pan Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Jia-Yue Zeng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Rong Zhong
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Su-Rong Mei
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Xiao-Ping Miao
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Qiang Zeng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
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5
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Verigos KE, Sagredou S, Orfanakos K, Dalezis P, Trafalis DT. 8-Hydroxy-2'-Deoxyguanosine and 8-Nitroguanine Production and Detection in Blood Serum of Breast Cancer Patients in Response to Postoperative Complementary External Ionizing Irradiation of Normal Tissues. Dose Response 2021; 18:1559325820982172. [PMID: 33424517 PMCID: PMC7758665 DOI: 10.1177/1559325820982172] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/18/2020] [Accepted: 11/25/2020] [Indexed: 11/16/2022] Open
Abstract
It is widely known that ionizing irradiation is strongly linked to the production of reactive oxygen (ROS) and nitrative species (RNS) through which DNA damage products like 8-hydroxy-2-deoxyguanosine (8-OHdG) and 8-nitroguanine (8-NG) are generated, respectively. In the present study, we aimed to investigate the formation of 8-OHdG and 8-NG upon irradiation and to further explore whether alterations in their concentration levels are related to the administered radiation doses and exposure time. Our research work was conducted in blood serum samples collected from 33 breast cancer patients who received adjuvant radiotherapy. The detection of 8-OHdG and 8-NG was assessed by enzyme-linked immunosorbent assay. Our results suggest that both, 8-OHdG and 8-NG, were formed during the radiation regimen. Significant correlations with radiation dose were also demonstrated by the dose-response curves of 8-OHdG and 8-NG, fitted by logarithmic distribution and polynomial regression, respectively. More precisely, 8-OHdG and 8-NG concentrations (ng/mL) were considerably increased when patients received ionizing radiation up to 30 Gy whereas irradiation over 30 Gy did not induce any further increases. The current study supports a) the production of 8-OHdG and 8-NG during radiotherapy and b) significant correlations between either 8-OHdG or 8-NG levels and radiation doses, indicating a radiation-dose-dependent relationship.
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Affiliation(s)
- Kosmas E Verigos
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, Athens, Greece.,Department of Radiation Therapy, 401 General Military Hospital, Athens, Greece
| | - Sofia Sagredou
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Kyriakos Orfanakos
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, Athens, Greece.,Radiation Therapy Clinic-A, "Metaxa" Cancer Hospital, Piraeus, Greece
| | - Panayiotis Dalezis
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios T Trafalis
- Laboratory of Pharmacology, Faculty of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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6
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Matulakul P, Vongpramate D, Kulchat S, Chompoosor A, Thanan R, Sithithaworn P, Sakonsinsiri C, Puangmali T. Development of Low-Cost AuNP-Based Aptasensors with Truncated Aptamer for Highly Sensitive Detection of 8-Oxo-dG in Urine. ACS OMEGA 2020; 5:17423-17430. [PMID: 32715227 PMCID: PMC7377066 DOI: 10.1021/acsomega.0c01834] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/24/2020] [Indexed: 06/11/2023]
Abstract
8-Oxo-7,8-dihydro-2'-deoxyguanosine (8-oxo-dG), an oxidized form of guanosine residues, is a critical biomarker for various cancers. Herein, a sensitive citrate-capped gold nanoparticle-based aptasensor device has been developed for the detection of 8-oxo-dG in urine. We previously designed a 38-nt anti-8-oxo-dG-aptamer by a computer simulation and the experimental validation has been performed in the present work. The analytical performance of the 38-nt aptamer from the in silico design was compared with the parent 66-nt aptamer. This assay is based on the principle of salt-induced aggregation of citrate-capped gold nanoparticles. Based on this sensing mechanism, the difference between the absorbance in the presence and absence of 8-oxo-dG at λ = 525 nm (ΔA525) increased linearly as a function of 8-oxo-dG concentrations in the ranges of 10-100 and 15-100 nM for 38-nt and 66-nt aptasensors, respectively. This method can provide detection limits of 6.4 nM for 8-oxo-dG in the 38-nt aptasensor and 13.2 nM in the 66-nt aptasensor. Similar to the 66-nt aptamer, the shortened aptamer, 38-nt long, can provide high sensitivity and selectivity with rapid detection time. In addition, using the 38-nt aptamer as a recognition component in the developed portable low-cost device showed high sensitivity in the detection range of 15-100 nM with a detection limit of 12.9 nM, which is much lower than the threshold value (280 nM) for normal human urine. This easy-to-use device could effectively and economically be utilized for monitoring 8-oxo-dG in real urine samples and potentially serve as a prototype for a commercial device.
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Affiliation(s)
- Piyaporn Matulakul
- Materials
Science and Nanotechnology Program, Department of Physics, Faculty
of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Drusawin Vongpramate
- Department
of Information Technology, Faculty of Science, Buriram Rajabhat University, Buriram 31000, Thailand
| | - Sirinan Kulchat
- Department
of Chemistry, Faculty of Science, Khon Kaen
University, Khon Kaen 40002, Thailand
| | - Apiwat Chompoosor
- Department
of Chemistry, Faculty of Science, Ramkhamhaeng
University, Bangkok 10240, Thailand
| | - Raynoo Thanan
- Department
of Biochemistry, Faculty of Medicine, Khon
Kaen University, Khon Kaen 40002, Thailand
- Cholangiocarcinoma
Research Institute (CARI), Khon Kaen University, Khon Kaen 40002, Thailand
- Cholangiocarcinoma
Screening and Care Program (CASCAP), Khon
Kaen University, Khon Kaen 40002, Thailand
| | - Paiboon Sithithaworn
- Cholangiocarcinoma
Research Institute (CARI), Khon Kaen University, Khon Kaen 40002, Thailand
- Cholangiocarcinoma
Screening and Care Program (CASCAP), Khon
Kaen University, Khon Kaen 40002, Thailand
- Department
of Parasitology, Faculty of Medicine, Khon
Kaen University, Khon Kaen 40002, Thailand
| | - Chadamas Sakonsinsiri
- Department
of Biochemistry, Faculty of Medicine, Khon
Kaen University, Khon Kaen 40002, Thailand
- Cholangiocarcinoma
Research Institute (CARI), Khon Kaen University, Khon Kaen 40002, Thailand
- Cholangiocarcinoma
Screening and Care Program (CASCAP), Khon
Kaen University, Khon Kaen 40002, Thailand
| | - Theerapong Puangmali
- Materials
Science and Nanotechnology Program, Department of Physics, Faculty
of Science, Khon Kaen University, Khon Kaen 40002, Thailand
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7
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Rashed R, Darwish H, Omran M, Belal A, Zahran F. A novel serum metabolome score for breast cancer diagnosis. Br J Biomed Sci 2020; 77:196-201. [DOI: 10.1080/09674845.2020.1784568] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- R Rashed
- Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt
| | - H Darwish
- Damietta Cancer Institute, Damietta/Ismailia Teaching Oncology Hospital, Ismailia, Egypt
| | - M Omran
- Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - A Belal
- Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt
| | - F Zahran
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt
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8
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Feng Z, Zhao RJ, Lu ZH, Jia LP, Ma RN, Zhang W, Shang L, Xue QW, Wang HS. Construction of aptasensors for sensitive detection of 8-OH-dG based on a diffusion mediated electrochemiluminescence quenching effect. Chem Commun (Camb) 2020; 56:11074-11077. [DOI: 10.1039/d0cc04492j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A DNA immobilization-free electrochemiluminescence aptasensor was developed for the detection of 8-hydroxy-2′-deoxygunosine based on the diffusion mediated electrochemiluminescence quenching effect and dual signal amplification strategies.
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Affiliation(s)
- Zhe Feng
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Rui-Juan Zhao
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Ze-Hua Lu
- Liaocheng Veterans Hospital
- Liaocheng 252000
- China
| | - Li-ping Jia
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Rong-Na Ma
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Wei Zhang
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Lei Shang
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Qing-Wang Xue
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
| | - Huai-Sheng Wang
- Department of Chemistry
- Liaocheng University
- Liaocheng 252000
- China
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9
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Larsen EL, Weimann A, Poulsen HE. Interventions targeted at oxidatively generated modifications of nucleic acids focused on urine and plasma markers. Free Radic Biol Med 2019; 145:256-283. [PMID: 31563634 DOI: 10.1016/j.freeradbiomed.2019.09.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 09/16/2019] [Accepted: 09/25/2019] [Indexed: 12/21/2022]
Abstract
Oxidative stress is associated with the development and progression of numerous diseases. However, targeting oxidative stress has not been established in the clinical management of any disease. Several methods and markers are available to measure oxidative stress, including direct measurement of free radicals, antioxidants, redox balance, and oxidative modifications of cellular macromolecules. Oxidatively generated nucleic acid modifications have attracted much interest due to the pre-mutagenic oxidative modification of DNA into 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), associated with cancer development. During the last decade, the perception of RNA has changed from that of a 'silent messenger' to an 'active contributor', and, parallelly oxidatively generated RNA modifications measured as 8-oxo-7,8-dihydro-guanosine (8-oxoGuo), has been demonstrated as a prognostic factor for all-caused and cardiovascular related mortality in patients with type 2 diabetes. Several attempts have been made to modify the amount of oxidative nucleic acid modifications. Thus, this review aims to introduce researchers to the measurement of oxidatively generated nucleic acid modifications as well as critically review previous attempts and provide future directions for targeting oxidatively generated nucleic acid modifications.
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Affiliation(s)
- Emil List Larsen
- Department of Clinical Pharmacology, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark.
| | - Allan Weimann
- Department of Clinical Pharmacology, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark
| | - Henrik Enghusen Poulsen
- Department of Clinical Pharmacology, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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10
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Omran MM, Rashed RE, Darwish H, Belal AA, Mohamed FZ. Development of a gas chromatography-mass spectrometry method for breast cancer diagnosis based on nucleoside metabolomes 1-methyl adenosine, 1-methylguanosine and 8-hydroxy-2'-deoxyguanosine. Biomed Chromatogr 2019; 34:e4713. [PMID: 31633807 DOI: 10.1002/bmc.4713] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 09/15/2019] [Accepted: 09/30/2019] [Indexed: 01/31/2023]
Abstract
Metabolomes are small molecule metabolites (<1000 Da) produced by cellular processes. Metabolomes are close counterparts to the genome, transcriptome and proteome. The aim of this study was to develop a method to detect and quantify candidate nucleoside metabolomes 1-methyl adenosine (1-MA), 1-methylguanosine (1-MG) and 8-hydroxy-2'-deoxyguanosine (8-OHdG) in the urine of patients with breast cancer using gas chromatography-mass spectrometry (GC-MS). The method was applied to urine specimens from patients with breast cancer (n = 56) and benign breast tumors (n = 22), as well as from healthy females (n = 20). The relative standard deviations of precision and repeatability analysis were <10%, and recoveries ranged from 88.5 to 105.6%. Limits of detection were 0.014, 0.012, and 0.018 mg/L for 1-MA, 1-MG and 8-OHdG, respectively. The lower limits of quantitation were 0.056, 0.048 and 0.072 mg/L, respectively. There were significant differences in concentrations of candidate metabolomes between patients with cancer and the healthy individuals, especially for those in the early stages of the disease (p < 0.001). No significant differences were observed between the benign and healthy groups. In conclusion, a reliable GC-MS method for the detection and quantification of 1-MA, 1-MG, and 8-OHdG metabolomes in urine has been developed.
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Affiliation(s)
- Mohamed M Omran
- Chemistry Department, Faculty of Science-Helwan University, Cairo, Egypt
| | - Ramzy E Rashed
- Laboratory of Toxicology, Central Laboratories, Ministry of Health, Damietta, Egypt
| | - Hossam Darwish
- Damietta Cancer Institute, Damietta/Head of medical oncology department, Ismailia Teaching Oncology Hospital, Ismailia, Egypt
| | - Arafa A Belal
- Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt
| | - Faten Z Mohamed
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt
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11
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Zhao RN, Jia LP, Feng Z, Ma RN, Zhang W, Shang L, Xue QW, Wang HS. Ultrasensitive electrochemiluminescence aptasensor for 8-hydroxy-2'-deoxyguanosine detection based on target-induced multi-DNA release and nicking enzyme amplification strategy. Biosens Bioelectron 2019; 144:111669. [PMID: 31494507 DOI: 10.1016/j.bios.2019.111669] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/25/2019] [Accepted: 08/30/2019] [Indexed: 01/19/2023]
Abstract
8-Hydroxy-2'-deoxyguanosine (8-OH-dG) is a principal stable marker of DNA oxidative damage. Sensitive and specific detection of 8-OH-dG is of great importance for early disease diagnosis. In this paper, we developed an electrochemiluminescence aptasensor for 8-OH-dG detection based on target induced multi-DNA release and nicking enzyme signaling amplification strategy. First, three kinds of short DNAs were aligned on the aptamers immobilized on the magnetic beads. In the presence of 8-OH-dG, the aptamer recognized and specifically bound with 8-OH-dG, leading to the release of three kinds of short DNAs and three-fold signal amplification. Then the released short DNAs hybridized with ferrocence (Fc) labeled hairpin DNA (Fc-HP) immobilized on the gold electrode to form a double strand DNA. Subsequently, nicking endonuclease (Nt.AlwI) recognized the asymmetric sequence in the dsDNA and cleaved the substrate strand (Fc-HP) into two parts, one fragments containing Fc would leave the surface of electrode. Based on the quenching effect of Fc on the electrochemiluminescence (ECL) of Ru(bpy)32+/TPA, a signal-on ECL aptasensor was developed. At the same time, three kinds of short DNAs were released again and reused to initiate the repeated cycles of hybridization-cleavage. Under double signal amplification, this aptasensor achieved a low detection of 25 fM and a wide linear range from 100 fM to 10 nM for 8-OH-dG. Besides, the amount of 8-OH-dG in urine samples derived from different people were determined with satisfactory results.
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Affiliation(s)
- Ruo-Nan Zhao
- Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252000, China
| | - Li-Ping Jia
- Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252000, China.
| | - Zhe Feng
- Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252000, China
| | - Rong-Na Ma
- Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252000, China
| | - Wei Zhang
- Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252000, China
| | - Lei Shang
- Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252000, China
| | - Qing-Wang Xue
- Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252000, China
| | - Huai-Sheng Wang
- Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252000, China.
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12
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Miglani K, Kumar S, Yadav A, Aggarwal N, Ahmad I, Gupta R. A multibiomarker approach to evaluate the effect of polyaromatic hydrocarbon exposure on oxidative and genotoxic damage in tandoor workers. Toxicol Ind Health 2019; 35:486-496. [DOI: 10.1177/0748233719862728] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We conducted a cohort study of tandoor workers to evaluate the relationship between the biomarkers of oxidative and genotoxic damage and exposure to polyaromatic hydrocarbons. A series of oxidative and genotoxic damage biomarkers, including urinary 8-hydroxy-2′-deoxyguanosine (8-OHdG), malondialdehyde (MDA) content, and tail moment (TM) by comet assay, was studied. A total of 76 tandoor workers and 79 demographically matched healthy individuals as controls were included. Our results showed that the tandoor workers had significantly higher urinary levels of 1-hydroxypyrene, urinary 8-OHdG, MDA content, and TM compared with the control population. The concentration of all these biomarkers increased with age in the control population as well as tandoor workers. In tandoor workers, significant variation in MDA, 8-oxodG (8-oxo-2′-deoxyguanosine) and TM concentration was detected between smokers (5.08 ± 1.72 nmol/mL, 16.01 ± 4.94 ng/mg creatinine, and 5.87 ± 0.98 µm, respectively) and nonsmokers (3.84 ± 0.98 nmol/mL, 13.74 ± 3.60 ng/mg creatinine, and 5.32 ± 0.69 µm, respectively). A similar pattern was obtained for the control population. We did not obtain significant variations for alcoholics and tobacco chewers. A significant increase in all these three biomarkers was observed with the increase in the period of work exposure in tandoor workers. Multivariate regression analysis also revealed that urinary 8-oxodG, MDA, and TM were statistically significantly related to age and period of work exposure. Overall, the present study showed that the exposure to wood smoke in tandoor workers under occupational conditions led to increased DNA damage because of oxidative stress and genotoxicity. These biomarkers, therefore, are good indices to assess oxidative DNA damage in these workers exposed to occupational genotoxicants. It is also necessary to make preventive changes in work conditions and lifestyle, which will help these occupational workers to lead a healthy life.
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Affiliation(s)
- Kanika Miglani
- Department of Biochemistry, Kurukshetra University Kurukshetra, Haryana, India
| | - Sunil Kumar
- Deprtment of Biotechnology, Kurukshetra University Kurukshetra, Haryana, India
| | - Anita Yadav
- Deprtment of Biotechnology, Kurukshetra University Kurukshetra, Haryana, India
| | - Neeraj Aggarwal
- Department of Microbiology, Kurukshetra University Kurukshetra, Haryana, India
| | - Imteyaz Ahmad
- Department of Biochemistry, Kurukshetra University Kurukshetra, Haryana, India
| | - Ranjan Gupta
- Department of Biochemistry, Kurukshetra University Kurukshetra, Haryana, India
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13
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Gao Y, Wang P, Wang Z, Han L, Li J, Tian C, Zhao F, Wang J, Zhao F, Zhang Q, Lyu Y. Serum 8-Hydroxy-2'-Deoxyguanosine Level as a Potential Biomarker of Oxidative DNA Damage Induced by Ionizing Radiation in Human Peripheral Blood. Dose Response 2019; 17:1559325818820649. [PMID: 30670937 PMCID: PMC6327346 DOI: 10.1177/1559325818820649] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/19/2018] [Accepted: 11/20/2018] [Indexed: 12/15/2022] Open
Abstract
In this study, the effect of ionizing radiation on 8-hydroxy-2'-deoxyguanosine (8-OHdG) in human peripheral blood was investigated. Blood samples were collected from 230 radiation workers and 8 patients who underwent radiotherapy for population study. Blood samples from 2 healthy individuals were irradiated with different X-ray doses for in vitro experiment, and levels of 8-OHdG in serum and cell culture supernatants were assessed by enzyme-linked immunosorbent assay. Observations demonstrated the positive relationships between serum 8-OHdG level and radiation dose and working period were observed, and serum 8-OHdG levels were higher among interventional radiation workers than among other hospital radiation workers. In addition, 8-OHdG yields in supernatants increased, peaked at 3 Gy of radiation dose, and then decreased with further increases in radiation; the dose-response curve obtained fitted a polynomial function. By contrast, a similar trend was not found in radiotherapy patients. The present study suggests that 8-OHdG may be a useful biomarker reflecting oxidative damage among workers occupationally exposed to low-dose radiation.
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Affiliation(s)
- Yu Gao
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Ping Wang
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Zhaonan Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Lin Han
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Jie Li
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Chongbin Tian
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Fengling Zhao
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
| | - Jianpo Wang
- Department of Radiation Oncology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Fang Zhao
- Department of Radiation Oncology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qiao Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yumin Lyu
- Department of Toxicology, Henan Institute of Occupational Medicine, Zhengzhou, China
- College of Public Health, Zhengzhou University, Zhengzhou, China
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14
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Nour Eldin EEM, El-Readi MZ, Nour Eldein MM, Alfalki AA, Althubiti MA, Mohamed Kamel HF, Eid SY, Al-Amodi HS, Mirza AA. 8-Hydroxy-2'-deoxyguanosine as a Discriminatory Biomarker for Early Detection of Breast Cancer. Clin Breast Cancer 2018; 19:e385-e393. [PMID: 30683611 DOI: 10.1016/j.clbc.2018.12.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/30/2018] [Accepted: 12/14/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Breast cancer (BC) is one of the most prevalent and reported cancers among Saudi women. Detection of BC in the early invasive stage (stages I, II) has an advantage in treating patients over detection in the late invasive stage (stages III, IV). Tumor markers are used to aid in diagnosis, treatment monitoring, and recurrence detection of malignant tumors. 8-hydroxy-2'-deoxyguanosine (8-OHdG) is a marker of nucleic damage owing to oxidative stress. PATIENTS AND METHODS We studied the blood levels of 8-OHdG in 50 women with benign breast tumors, 50 women with BC, and 50 healthy women as a control group. RESULTS The concentrations of 8-OHdG were significantly increased in the BC group (55.2 ng/dL) compared with the benign tumor group (30.2 ng/dL) and with the healthy control group (9.08 ng/dL). The same pattern was observed with other diagnostic markers, including carcinoembryonic antigen and cancer antigen 15-3. Significant positive correlations between 8-OHdG and both carcinoembryonic antigen (r = 0.63; P < .001) and cancer antigen 15-3 (r = 0.51; P < .001) were noticed. The levels of 8-OHdG were significantly higher in stage I (81 ng/dL) compared with stage II (51 ng/dL; P < .05), stage III (38 ng/dL; P < .01), and stage IV (19 ng/dL; P < .001). In addition, serum 8-OHdG had a high diagnostic performance in BC (area under the curve, 0.86; sensitivity = 82%; specificity = 80% at cutoff value 21.4 ng/mL). 8-OHdG is associated with BC risk according to logistic regression analysis. CONCLUSION We concluded that the significant increase of serum levels of 8-OHdG in patients with BC can be used as a potential noninvasive biomarker for early detection of BC. However, large sample sizes from different stages and types of BC should be included in any future study to confirm the present findings before translating the findings into routine clinical application.
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Affiliation(s)
| | - Mahmoud Zaki El-Readi
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia; Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt.
| | - Mohamed Mahmoud Nour Eldein
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia; Department of Medical Biochemistry, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Albagir Ali Alfalki
- Department of Surgery, Faculty of Medicine, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia
| | - Mohammad Ahmad Althubiti
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia
| | - Hala Fawzy Mohamed Kamel
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia; Department of Medical Biochemistry, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Safaa Yehia Eid
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia
| | - Hiba Saeed Al-Amodi
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia
| | - Ahmad A Mirza
- Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
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15
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Fernández-Bertólez N, Costa C, Bessa MJ, Park M, Carriere M, Dussert F, Teixeira JP, Pásaro E, Laffon B, Valdiglesias V. Assessment of oxidative damage induced by iron oxide nanoparticles on different nervous system cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 845:402989. [PMID: 31561889 DOI: 10.1016/j.mrgentox.2018.11.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 11/02/2018] [Accepted: 11/29/2018] [Indexed: 12/30/2022]
Abstract
Iron oxide nanoparticles (ION) have received much attention for their utility in biomedical applications, such as magnetic resonance imaging, drug delivery and hyperthermia, but concerns regarding their potential harmful effects are also growing. Even though ION may induce different toxic effects in a wide variety of cell types and animal systems, there is a notable lack of toxicological data on the human nervous system, particularly important given the increasing number of applications on this specific system. An important mechanism of nanotoxicity is reactive oxygen species (ROS) generation and oxidative stress. On this basis, the main objective of this work was to assess the oxidative potential of silica-coated (S-ION) and oleic acid-coated (O-ION) ION on human SH-SY5Y neuronal and A172 glial cells. To this aim, ability of ION to generate ROS (both in the absence and presence of cells) was determined, and consequences of oxidative potential were assessed (i) on DNA by means of the 8-oxo-7,8-dihydroguanine DNA glycosylase (OGG1)-modified comet assay, and (ii) on antioxidant reserves by analyzing ratio of reduced glutathione (GSH) to oxidized glutathione (GSSG). Conditions tested included a range of concentrations, two exposure times (3 and 24 h), and absence and presence of serum in the cell culture media. Results confirmed that, even though ION were not able to produce ROS in acellular environments, ROS formation was increased in the neuronal and glial cells by ION exposure, and was parallel to induction of oxidative DNA damage and, only in the case of neuronal cells treated with S-ION, to decreases in the GSH/GSSG ratio. Present findings suggest the production of oxidative stress as a potential action mechanism leading to the previously reported cellular effects, and indicate that ION may pose a health risk to human nervous system cells by generating oxidative stress, and thus should be used with caution.
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Affiliation(s)
- Natalia Fernández-Bertólez
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071-A Coruña, Spain; Universidade da Coruña, Department of Cell and Molecular Biology, Facultad de Ciencias, Campus A Zapateira s/n, 15071-A Coruña, Spain
| | - Carla Costa
- Portuguese National Institute of Health, Department of Environmental Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal; Universidade do Porto, EPIUnit - Instituto de Saúde Pública, Rua das Taipas, 135, 4050-600 Porto, Portugal
| | - Maria João Bessa
- Portuguese National Institute of Health, Department of Environmental Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal; Universidade do Porto, EPIUnit - Instituto de Saúde Pública, Rua das Taipas, 135, 4050-600 Porto, Portugal
| | - Margriet Park
- Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Marie Carriere
- Univ. Grenoble-Alpes, CEA, CNRS, INAC-SyMMES, Chimie Interface Biologie pour l'Environnement, la Santé et la Toxicologie (CIBEST), 38000 Grenoble, France
| | - Fanny Dussert
- Univ. Grenoble-Alpes, CEA, CNRS, INAC-SyMMES, Chimie Interface Biologie pour l'Environnement, la Santé et la Toxicologie (CIBEST), 38000 Grenoble, France
| | - João Paulo Teixeira
- Portuguese National Institute of Health, Department of Environmental Health, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal; Universidade do Porto, EPIUnit - Instituto de Saúde Pública, Rua das Taipas, 135, 4050-600 Porto, Portugal
| | - Eduardo Pásaro
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071-A Coruña, Spain
| | - Blanca Laffon
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071-A Coruña, Spain.
| | - Vanessa Valdiglesias
- Universidade da Coruña, DICOMOSA Group, Department of Psychology, Area of Psychobiology, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071-A Coruña, Spain; Universidade do Porto, EPIUnit - Instituto de Saúde Pública, Rua das Taipas, 135, 4050-600 Porto, Portugal
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16
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Usman M, Volpi EV. DNA damage in obesity: Initiator, promoter and predictor of cancer. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2018; 778:23-37. [PMID: 30454680 DOI: 10.1016/j.mrrev.2018.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/29/2018] [Accepted: 08/15/2018] [Indexed: 12/13/2022]
Abstract
Epidemiological evidence linking obesity with increased risk of cancer is steadily growing, although the causative aspects underpinning this association are only partially understood. Obesity leads to a physiological imbalance in the regulation of adipose tissue and its normal functioning, resulting in hyperglycaemia, dyslipidaemia and inflammation. These states promote the generation of oxidative stress, which is exacerbated in obesity by a decline in anti-oxidant defence systems. Oxidative stress can have a marked impact on DNA, producing mutagenic lesions that could prove carcinogenic. Here we review the current evidence for genomic instability, sustained DNA damage and accelerated genome ageing in obesity. We explore the notion of genotoxicity, ensuing from systemic oxidative stress, as a key oncogenic factor in obesity. Finally, we advocate for early, pre-malignant assessment of genome integrity and stability to inform surveillance strategies and interventions.
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Affiliation(s)
- Moonisah Usman
- Department of Biomedical Sciences, Faculty of Science and Technology, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK
| | - Emanuela V Volpi
- Department of Biomedical Sciences, Faculty of Science and Technology, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK.
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17
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Guo C, Ding P, Xie C, Ye C, Ye M, Pan C, Cao X, Zhang S, Zheng S. Potential application of the oxidative nucleic acid damage biomarkers in detection of diseases. Oncotarget 2017; 8:75767-75777. [PMID: 29088908 PMCID: PMC5650463 DOI: 10.18632/oncotarget.20801] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 08/27/2017] [Indexed: 12/14/2022] Open
Abstract
Reactive oxygen species (ROS) are generated after exposure to harmful environmental factors and during normal cellular metabolic processes. The balance of the generating and scavenging of ROS plays a significant role in living cells. The accumulation of ROS will lead to oxidative damage to biomolecules including nucleic acid. Although many types of oxidative nucleic acid damage products have been identified, 8-oxo-7,8-dihydro-2’-deoxyguanosine (8-oxodG) and 8-oxo-7,8-dihydroguanosine (8-oxoG) has been commonly chosen as the biomarkers of oxidative damage to DNA and RNA, respectively. It has been demonstrated that oxidative damage to nucleic acid is an initiator in pathogenesis of numerous diseases. Thus, oxidative nucleic acid damage biomarkers have the potential to be utilized for detection of diseases. Herein, we reviewed the relationship of oxidative nucleic acid damage and development of various diseases including cancers (colorectal cancer, gastrointestinal cancer, breast cancer, lung cancer, epithelial ovarian carcinoma, esophageal squamous cell carcinoma), neurodegenerative disorders and chronic diseases (diabetes and its complications, cardiovascular diseases). The potential of oxidative nucleic acid damage biomarkers for detection of diseases and drug development were described. Moreover, the approaches for detection of these biomarkers were also summarized.
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Affiliation(s)
- Cheng Guo
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Peili Ding
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Cong Xie
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China.,College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Chenyang Ye
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Minfeng Ye
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China.,Department of Gastrointestinal Surgery, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, China
| | - Chi Pan
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Xiaoji Cao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Suzhan Zhang
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China.,Research Center for Air Pollution and Health, Zhejiang University, Hangzhou, Zhejiang 310009, China
| | - Shu Zheng
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China.,Research Center for Air Pollution and Health, Zhejiang University, Hangzhou, Zhejiang 310009, China
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18
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Shandiz FH, Ghaffarzadegan K, Fariman SJ, Akbarzadeh M, Elyasi S, Mohammadpour AH. Evaluation of serum levels of 8-oxo-2′-deoxyguanosine as a prognostic factor in nonmetastatic breast cancer patients. BREAST CANCER MANAGEMENT 2017. [DOI: 10.2217/bmt-2017-0009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Aim: 8-OxodG protein has been introduced recently as a new biomarker for breast cancer, according to its role in tumor progression and invasion. In this study, we investigated prognostic value of 8-Oxo-2′-deoxyguanosine (8-OxodG) protein in nonmetastatic breast cancer patients excluding confounding factor. Materials & methods: Before any adjuvant chemotherapy or surgery, serum level of 8-OxodG protein was determined in 79 patients with nonmetastatic breast cancer. All patients follow up for 5 years regarding cancer recurrence and survival. Results: Cumulative risk of recurrence 5 years after the beginning of the study was 0.86 and there was no significant correlation between 8-OxodG and the recurrence rate (p = 0.78). Conclusion: The serum levels of 8-OxodG protein may not be an appropriate prognostic factor in breast cancer.
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Affiliation(s)
- Fatemeh Homaei Shandiz
- Solid Tumor Treatment Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Saeed Jahani Fariman
- Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahdi Akbarzadeh
- Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sepideh Elyasi
- Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Hooshang Mohammadpour
- Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Abstract
In first part of this study, a systematic review was designed to explore the involvement of CYP1A1 and GSTP1 genes in breast cancerogenesis. Based on systematic review, we designed a study to screen CYP1A1 and GSTP1 genes for mutation and their possible association with breast carcinogenesis. A total of 400 individuals were collected and analyzed by PCR-SSCP. After sequence analysis of coding region of CYP1A1 we identified eleven mutations in different exons of respective gene. Among these eleven mutations, ~3 folds increased breast cancer risk was found associated with Asp82Glu mutation (OR 2.99; 95% CI 1.26-7.09), with Ser83Thr mutation (OR 2.99; 95% CI 1.26-7.09) and with Glu86Ala mutation (OR 3.18; 95% CI 1.27-7.93) in cancer patients compared to controls. Furthermore, ~4 folds increase in breast cancer risk was found associated with Asp347Glu, Phe398Tyr and 5178delT mutations (OR 3.92; 95% CI 1.35-11.3) in patients compared to controls. The sequence analysis of GSTP1 resulted in identification of total five mutations. Among these five mutations, ~3 folds increase in breast cancer risk was observed associated with 1860G>A mutation, with 1861-1876delCAGCCCTCTGGAGTGG mutation (OR 2.70; 95% CI 1.10-6.62) and with 1861C>A mutation (OR 2.97; 95% CI 1.01-8.45) in cancer patients compared to controls. Furthermore, ~5 folds increase in breast cancer risk was associated with 1883G>T mutation (OR 4.75; 95% CI 1.46-15.3) and ~6 folds increase in breast cancer risk was found associated with Iso105Val mutation (OR 6.43; 95% CI 1.41-29.3) in cancer patients compared to controls. Our finding, based on systematic review and experimental data suggest that the polymorphic CYP1A1 and GSTP1 genes may contribute to risk of developing breast cancer.
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20
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Peddireddy V, Badabagni SP, Gundimeda SD, Mamidipudi V, Penagaluru PR, Mundluru HP. Association of CYP1A1, GSTM1 and GSTT1 gene polymorphisms with risk of non-small cell lung cancer in Andhra Pradesh region of South India. Eur J Med Res 2016; 21:17. [PMID: 27090234 PMCID: PMC4836067 DOI: 10.1186/s40001-016-0209-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 03/30/2016] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Lung cancer is one of the most preventable causes of death globally both in developed and developing countries. Although it is well established that smokers develop lung cancer, there are some smokers who are free from the disease risk. The predisposition to lung cancer is attributed to genetic polymorphisms in xenobiotic metabolizing genes. Reports on assessment of xenobiotic metabolizing genes like Cytochrome P 450 1A1 (CYP1A1), Glutathione -S -transferase M1 (GSTM1) and T1 (GSTT1) polymorphisms from India are meagre, and reports from Andhra Pradesh are lacking. METHODS AND RESULTS Assessment of polymorphisms in CYP1A1, GSTM1 and GSTT1 in NSCLC patients and healthy individuals specific to population of Andhra Pradesh, a South Indian state was attempted by multiplex PCR and RFLP, and this is the first study which tried to correlate oxidative stress with the polymorphisms in xenobiotic metabolizing genes. Results showed that CYP1A1 m1 'CC' genotype was significantly associated with lung cancer susceptibility with a 2.3-fold risk, CYP1A1 m2 'AG' gene polymorphisms with 8.8-fold risk and GSTT1 (-/-) genotype demonstrated a twofold risk of disease susceptibility. CONCLUSIONS A combined role of genetic polymorphisms and smoking status can be attributed for the cause of lung cancer. Further, the association between oxidative stress and genetic polymorphisms showed a correlation between GSTT1 and super oxide dismutase activity; CYP1A1 m1, m2 and GSTT1 with glutathione peroxidase activity; CYP1A1 m1 and GSTM1 with melondialdehyde levels; and CYP1A1 m1 and GSTT1 with 8-oxo-7,8-dihydro-2'-deoxyguanosine. A higher risk of lung cancer seems to be associated with combined gene polymorphisms of phase I and phase II enzymes than that ascribed to single gene polymorphism.
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Affiliation(s)
- Vidyullatha Peddireddy
- />Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, 500016 Telangana India
- />DST Woman Scientist, Department of Biotechnology, University of Hyderabad, Gachibowli, Hyderabad, 500046 Telangana India
| | - Siva Prasad Badabagni
- />Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, 500016 Telangana India
| | | | - Vasudha Mamidipudi
- />Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, 500016 Telangana India
| | - Pardhanandana Reddy Penagaluru
- />Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, 500016 Telangana India
- />Bhagwan Mahavir Medical Research Centre, Hyderabad, 500004 Telangana India
| | - Hema Prasad Mundluru
- />Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, 500016 Telangana India
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A Case-Control Study of Involvement of Oxidative DNA Damage and Alteration of Antioxidant Defense System in Patients with Basal Cell Carcinoma: Modulation by Tumor Removal. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:5934024. [PMID: 27057281 PMCID: PMC4738719 DOI: 10.1155/2016/5934024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 12/11/2015] [Accepted: 12/15/2015] [Indexed: 12/27/2022]
Abstract
Oxidative damage has been suggested to play a role in the pathogenesis of basal cell carcinoma (BCC). This study illustrated an involvement of oxidative DNA damage and changes in antioxidant defenses in BCC by conducting a case-control study (24 controls and 24 BCC patients) and assessing urinary 7,8-dihydro-8-oxo-2′-deoxyguanosine (8-oxo-dGuo), plasma antioxidant defenses including catalase (CAT), glutathione peroxidase (GPx), NQO1, and total superoxide dismutase (SOD) activities, and glutathione (GSH) levels before surgery and 1 month after surgery. 8-oxo-dGuo expressions as well as protein and mRNA expressions of DNA repair enzyme hOGG1 and antioxidant defenses (CAT, GCLC, GPx, Nrf2, and MnSOD) in nonneoplastic epidermis of control and BCC tissues were also determined. This study observed induction in urinary 8-oxo-dGuo, increased 8-oxo-dGuo expression, and reduced hOGG1 protein and mRNA in BCC tissues, decreased activities of CAT, GPx, and NQO1, but elevated SOD activities and GSH levels in BCC patients and reduction of all antioxidant proteins and genes studied in BCC tissues. Furthermore, decreased plasma antioxidant activities in BCC patients were restored at 1 month after operation compared with preoperative levels. Herein, we concluded that BCC patients were associated with oxidative DNA damage and depletion of antioxidant defenses and surgical removal of BCC correlated with improved redox status.
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A novel fluorescence aptasensor for 8-hydroxy-2′-deoxyguanosine based on the conformational switching of K + -stabilized G-quadruplex. J Pharm Biomed Anal 2016; 118:177-182. [DOI: 10.1016/j.jpba.2015.10.035] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 10/20/2015] [Accepted: 10/23/2015] [Indexed: 01/07/2023]
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Broedbaek K, Siersma V, Henriksen T, Weimann A, Petersen M, Andersen JT, Jimenez-Solem E, Hansen LJ, Henriksen JE, Bonnema SJ, de Fine Olivarius N, Friis S, Poulsen HE. Urinary markers of nucleic acid oxidation and cancer in type 2 diabetes. Redox Biol 2014; 4:34-9. [PMID: 25498965 PMCID: PMC4309851 DOI: 10.1016/j.redox.2014.11.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 11/04/2014] [Indexed: 11/29/2022] Open
Abstract
AIMS/HYPOTHESIS We investigated whether urinary markers of nucleic acid oxidation are associated with an increased risk of cancer in type 2 diabetes patients. METHODS Urine samples from 1381 newly diagnosed diabetes patients were assayed for the oxidatively modified guanine nucleosides 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) and 8-oxo-7,8-dihydroguanosine (8-oxoGuo). Cox proportional hazards regression was used to examine the relationship between the urinary markers and cancer incidence. RESULTS The crude analyses showed an association between overall cancer and urinary excretion of the RNA oxidation marker 8-oxoGuo (unadjusted hazard ratio for cancer per natural log increase in 8-oxoGuo 1.35 [95% CI, 1.01-1.81]), however, in the adjusted analyses, no significant associations between 8-oxodG or 8-oxoGuo and overall cancer were found. For site-specific cancers 8-oxodG was associated with breast cancer in the crude analyses (unadjusted hazard ratio for breast cancer per natural log increase in 8-oxodG was 2.37 [95% CI, 1.07-5.26]), although the association was attenuated in the adjusted analyses (sex- and age-adjusted hazard ratio 2.15 [95% CI, 0.92-5.02] and multivariate adjusted hazard ratio1.98 [95% CI, 0.95-4.10]). CONCLUSIONS Urinary excretion of the nucleic acid oxidation markers 8-oxodG and 8-oxoGuo at the time of diagnosis was not associated with cancer overall in type 2 diabetes patients. For site-specific cancers, risk elevations were seen for breast cancer (8-oxodG). These findings should be examined in future and larger studies.
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Affiliation(s)
- Kasper Broedbaek
- Laboratory of Clinical Pharmacology Q7642, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Pharmacology, Bispebjerg Hospital, Copenhagen, Denmark.
| | - Volkert Siersma
- The Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Trine Henriksen
- Laboratory of Clinical Pharmacology Q7642, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Pharmacology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Allan Weimann
- Laboratory of Clinical Pharmacology Q7642, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Pharmacology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Morten Petersen
- Laboratory of Clinical Pharmacology Q7642, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Pharmacology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Jon T Andersen
- Laboratory of Clinical Pharmacology Q7642, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Pharmacology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Espen Jimenez-Solem
- Laboratory of Clinical Pharmacology Q7642, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Pharmacology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Lars J Hansen
- The Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Jan Erik Henriksen
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - Steen J Bonnema
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - Niels de Fine Olivarius
- The Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Søren Friis
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Henrik E Poulsen
- Laboratory of Clinical Pharmacology Q7642, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Pharmacology, Bispebjerg Hospital, Copenhagen, Denmark; Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Brenner DR, Scherer D, Muir K, Schildkraut J, Boffetta P, Spitz MR, Le Marchand L, Chan AT, Goode EL, Ulrich CM, Hung RJ. A review of the application of inflammatory biomarkers in epidemiologic cancer research. Cancer Epidemiol Biomarkers Prev 2014; 23:1729-51. [PMID: 24962838 DOI: 10.1158/1055-9965.epi-14-0064] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Inflammation is a facilitating process for multiple cancer types. It is believed to affect cancer development and progression through several etiologic pathways, including increased levels of DNA adduct formation, increased angiogenesis, and altered antiapoptotic signaling. This review highlights the application of inflammatory biomarkers in epidemiologic studies and discusses the various cellular mediators of inflammation characterizing the innate immune system response to infection and chronic insult from environmental factors. Included is a review of six classes of inflammation-related biomarkers: cytokines/chemokines, immune-related effectors, acute-phase proteins, reactive oxygen and nitrogen species, prostaglandins and cyclooxygenase-related factors, and mediators such as transcription factors and growth factors. For each of these biomarkers, we provide a brief overview of the etiologic role in the inflammation response and how they have been related to cancer etiology and progression within the literature. We provide a discussion of the common techniques available for quantification of each marker, including strengths, weaknesses, and potential pitfalls. Subsequently, we highlight a few under-studied measures to characterize the inflammatory response and their potential utility in epidemiologic studies of cancer. Finally, we suggest integrative methods for future studies to apply multifaceted approaches to examine the relationship between inflammatory markers and their roles in cancer development.
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Affiliation(s)
- Darren R Brenner
- Lunenfeld-Tanenbaum Research Institute of Mount Sinai Hospital, Toronto, Ontario, Canada. Department of Cancer Epidemiology and Prevention, Cancer Control Alberta, Alberta Health Services, Calgary, Alberta, Canada
| | - Dominique Scherer
- Division of Preventive Oncology, National Center for Tumor Diseases and German Cancer Research Center, Heidelberg, Germany
| | | | | | - Paolo Boffetta
- Tisch Cancer Institute, Mount Sinai School of Medicine, New York, New York
| | | | | | - Andrew T Chan
- Dana Farber/Harvard Cancer Center, Boston, Massachusetts
| | - Ellen L Goode
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Cornelia M Ulrich
- Division of Preventive Oncology, National Center for Tumor Diseases and German Cancer Research Center, Heidelberg, Germany. Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle, Washington.
| | - Rayjean J Hung
- Lunenfeld-Tanenbaum Research Institute of Mount Sinai Hospital, Toronto, Ontario, Canada.
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A colorimetric aptasensor for the highly sensitive detection of 8-hydroxy-2'-deoxyguanosine based on G-quadruplex-hemin DNAzyme. Anal Biochem 2014; 458:4-10. [PMID: 24811738 DOI: 10.1016/j.ab.2014.04.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 04/16/2014] [Accepted: 04/24/2014] [Indexed: 02/08/2023]
Abstract
A highly sensitive, low-cost colorimetric aptasensor was developed for the determination of 8-hydroxy-2'-deoxyguanosine (8-OHdG) in human urine. The method is based on a conformational switching of the 8-OHdG aptamer to form a G-quadruplex structure in the presence of 8-OHdG. The resulting G-quadruplex assembles into a peroxidase-like DNAzyme with hemin, which effectively catalyzes the oxidation of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS(2-)) by H2O2 to ABTS(+), resulting in an increase in the absorption signal at 416nm along with a color change of the solution. The response signals linearly correlated with the concentration of 8-OHdG, ranging from 466pM to 247nM with a detection limit of 141pM. The relative standard deviation and the recovery were 1.97-3.47% (n=11) and 98.8-100.2%, respectively. The proposed method avoids the label and derivatization steps in common methods and allows direct analysis of the samples by the naked eye without costly instruments, which is reliable, inexpensive, and sensitive.
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Gordillo GM, Biswas A, Khanna S, Pan X, Sinha M, Roy S, Sen CK. Dicer knockdown inhibits endothelial cell tumor growth via microRNA 21a-3p targeting of Nox-4. J Biol Chem 2014; 289:9027-38. [PMID: 24497637 DOI: 10.1074/jbc.m113.519264] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
MicroRNAs (miR) are emerging as biomarkers and potential therapeutic targets in tumor management. Endothelial cell tumors are the most common soft tissue tumors in infants, yet little is known about the significance of miR in regulating their growth. A validated mouse endothelial cell (EOMA) tumor model was used to demonstrate that post-transcriptional gene silencing of dicer, the enzyme that converts pre-miR to mature miR, can prevent tumor formation in vivo. Tumors were formed in eight of eight mice injected with EOMA cells transfected with control shRNA but formed in only four of ten mice injected with EOMA cells transfected with dicer shRNA. Tumors that formed in the dicer shRNA group were significantly smaller than tumors in the control group. This response to dicer knockdown was mediated by up-regulated miR 21a-3p activity targeting the nox-4 3'-UTR. EOMA cells were transfected with miR 21a-3p mimic and luciferase reporter plasmids containing either intact nox-4 3'-UTR or with mutation of the proposed 3'-UTR miR21a-3p binding sites. Mean luciferase activity was decreased by 85% in the intact compared with the site mutated vectors (p < 0.01). Attenuated Nox-4 activity resulted in decreased cellular hydrogen peroxide production and decreased production of oxidant-inducible monocyte chemoattractant protein-1, which we have previously shown to be critically required for endothelial cell tumor formation. These findings provide the first evidence establishing the significance of dicer and microRNA in promoting endothelial cell tumor growth in vivo.
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Colorimetric determination of 8-hydroxy–2′-deoxyguanosine using label-free aptamer and unmodified gold nanoparticles. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1173-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Suh HW, Kim SH, Park SJ, Hyun SH, Lee SY, Auh JH, Lee HJ, Cho SM, Kim JH, Choi HK. Effect of Korean black raspberry (Rubus coreanus Miquel) fruit administration on DNA damage levels in smokers and screening biomarker investigation using 1H-NMR-based metabolic profiling. Food Res Int 2013. [DOI: 10.1016/j.foodres.2012.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Policastro LL, Ibañez IL, Notcovich C, Duran HA, Podhajcer OL. The tumor microenvironment: characterization, redox considerations, and novel approaches for reactive oxygen species-targeted gene therapy. Antioxid Redox Signal 2013; 19:854-95. [PMID: 22794113 DOI: 10.1089/ars.2011.4367] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The tumor microenvironment is a complex system that involves the interaction between malignant and neighbor stromal cells embedded in a mesh of extracellular matrix (ECM) components. Stromal cells (fibroblasts, endothelial, and inflammatory cells) are co-opted at different stages to help malignant cells invade the surrounding ECM and disseminate. Malignant cells have developed adaptive mechanisms to survive under the extreme conditions of the tumor microenvironment such as restricted oxygen supply (hypoxia), nutrient deprivation, and a prooxidant state among others. These conditions could be eventually used to target drugs that will be activated specifically in this microenvironment. Preclinical studies have shown that modulating cellular/tissue redox state by different gene therapy (GT) approaches was able to control tumor growth. In this review, we describe the most relevant features of the tumor microenvironment, addressing reactive oxygen species-generating sources that promote a prooxidative microenvironment inside the tumor mass. We describe different GT approaches that promote either a decreased or exacerbated prooxidative microenvironment, and those that make use of the differential levels of ROS between cancer and normal cells to achieve tumor growth inhibition.
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Affiliation(s)
- Lucia Laura Policastro
- Department of Micro and Nanotechnology, National Atomic Energy Commission, Buenos Aires 1650, Argentina.
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Loft S, Olsen A, Møller P, Poulsen HE, Tjønneland A. Association between 8-oxo-7,8-dihydro-2'-deoxyguanosine excretion and risk of postmenopausal breast cancer: nested case-control study. Cancer Epidemiol Biomarkers Prev 2013; 22:1289-96. [PMID: 23658396 DOI: 10.1158/1055-9965.epi-13-0229] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Oxidative stress may be important in carcinogenesis and a possible risk factor for breast cancer. The urinary excretion of oxidatively generated biomolecules, such as 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), represents biomarkers of oxidative stress, reflecting the rate of global damage to DNA in steady state. METHODS In a nested case-control design, we examined associations between urinary excretion of 8-oxodG and risk of breast cancer in a population-based cohort of 24,697 postmenopausal women aged 50 to 64 years with 3 to 7 years follow-up. The accruing cases of breast cancer were matched to controls by age at diagnosis, baseline age, and hormone replacement therapy (HRT). Spot urine samples collected at entry was analyzed for 8-oxodG by high-performance liquid chromatography with electrochemical detection. Incidence rate ratio (IRR; 95% confidence intervals) based on 336 matched pairs with all information was estimated per unit increase in 8-oxodG divided by creatinine for all and estrogen receptor (ER) positive and negative breast cancers. RESULTS There was a borderline significant positive association between 8-oxodG and risk of all breast cancer (IRR: 1.08; 1.00-1.17 per unit increase in nmol/mmol creatinine). This association was significant with respect to the risk of ER-positive cancer (IRR: 1.11; 1.01-1.23) and among women not using HRT (IRR: 1.11; 0.97-1.26) or with low dietary iron intake (IRR: 1.10; 1.06-1.37 per unit increase) for all breast cancer. CONCLUSIONS We observed positive association between 8-oxodG excretion and risk of especially ER-positive breast cancer. IMPACT Our results suggest that oxidative stress with damage to DNA is important for the development of breast cancer.
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Affiliation(s)
- Steffen Loft
- Department of Public Health, Section of Enviromental Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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Mendes B, Silva P, Aveiro F, Pereira J, Câmara JS. A micro-extraction technique using a new digitally controlled syringe combined with UHPLC for assessment of urinary biomarkers of oxidatively damaged DNA. PLoS One 2013; 8:e58366. [PMID: 23484022 PMCID: PMC3590158 DOI: 10.1371/journal.pone.0058366] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Accepted: 02/04/2013] [Indexed: 01/24/2023] Open
Abstract
The formation of reactive oxygen species (ROS) within cells causes damage to biomolecules, including membrane lipids, DNA, proteins and sugars. An important type of oxidative damage is DNA base hydroxylation which leads to the formation of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) and 5-hydroxymethyluracil (5-HMUra). Measurement of these biomarkers in urine is challenging, due to the low levels of the analytes and the matrix complexity. In order to simultaneously quantify 8-oxodG and 5-HMUra in human urine, a new, reliable and powerful strategy was optimised and validated. It is based on a semi-automatic microextraction by packed sorbent (MEPS) technique, using a new digitally controlled syringe (eVol(®)), to enhance the extraction efficiency of the target metabolites, followed by a fast and sensitive ultrahigh pressure liquid chromatography (UHPLC). The optimal methodological conditions involve loading of 250 µL urine sample (1:10 dilution) through a C8 sorbent in a MEPS syringe placed in the semi-automatic eVol(®) syringe followed by elution using 90 µL of 20% methanol in 0.01% formic acid solution. The obtained extract is directly analysed in the UHPLC system using a binary mobile phase composed of aqueous 0.1% formic acid and methanol in the isocratic elution mode (3.5 min total analysis time). The method was validated in terms of selectivity, linearity, limit of detection (LOD), limit of quantification (LOQ), extraction yield, accuracy, precision and matrix effect. Satisfactory results were obtained in terms of linearity (r(2) > 0.991) within the established concentration range. The LOD varied from 0.00005 to 0.04 µg mL(-1) and the LOQ from 0.00023 to 0.13 µg mL(-1). The extraction yields were between 80.1 and 82.2 %, while inter-day precision (n = 3 days) varied between 4.9 and 7.7 % and intra-day precision between 1.0 and 8.3 %. This approach presents as main advantages the ability to easily collect and store urine samples for further processing and the high sensitivity, reproducibility, and robustness of eVol(®)MEPS combined with UHPLC analysis, thus retrieving a fast and reliable assessment of oxidatively damaged DNA.
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Affiliation(s)
- Berta Mendes
- CQM - Centro de Química da Madeira, Centro de Ciências Exatas e da Engenharia, Universidade da Madeira, Funchal, Portugal
- Centro de Ciências Exatas e da Engenharia, Universidade da Madeira, Funchal, Portugal
| | - Pedro Silva
- CQM - Centro de Química da Madeira, Centro de Ciências Exatas e da Engenharia, Universidade da Madeira, Funchal, Portugal
- Centro de Ciências Exatas e da Engenharia, Universidade da Madeira, Funchal, Portugal
| | | | - Jorge Pereira
- CQM - Centro de Química da Madeira, Centro de Ciências Exatas e da Engenharia, Universidade da Madeira, Funchal, Portugal
| | - José S. Câmara
- CQM - Centro de Química da Madeira, Centro de Ciências Exatas e da Engenharia, Universidade da Madeira, Funchal, Portugal
- Centro de Ciências Exatas e da Engenharia, Universidade da Madeira, Funchal, Portugal
- * E-mail:
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Oxidative Stress and DNA Damage in Human Gastric Carcinoma: 8-Oxo-7'8-dihydro-2'-deoxyguanosine (8-oxo-dG) as a Possible Tumor Marker. Int J Mol Sci 2013; 14:3467-86. [PMID: 23389043 PMCID: PMC3588053 DOI: 10.3390/ijms14023467] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Revised: 01/08/2013] [Accepted: 01/11/2013] [Indexed: 11/22/2022] Open
Abstract
We characterized the oxidative stress (OS) status by the levels of reduced/oxidized glutathione (GSH/GSSG), malondialdehyde (MDA) and the mutagenic base 8-oxo-7′8-dihydro-2′-deoxyguanosine (8-oxo-dG) in human gastric carcinoma (HGC) samples and compared the results with normal tissue from the same patients. We also analyzed 8-oxo-dG in peripheral mononuclear cells (PMNC) and urine from healthy control subjects and in affected patients in the basal state and one, three, six, nine and twelve months after tumor resection. The levels of DNA repair enzyme mRNA expression (hOGG1, RAD51, MUYTH and MTH1) were determined in tumor specimens and compared with normal mucosa. Tumor specimens exhibited increased levels of MDA and 8-oxo-dG compared with normal gastric tissue. GSH levels were also increased, while GSSG levels remained stable. DNA repair enzyme mRNA expression was induced in the tumor tissues. Levels of 8-oxo-dG were significantly elevated in both urine and PMNC of gastric cancer patients compared with healthy controls. After gastrectomy, the levels of the damaged base in urine and PMNC decreased progressively to values close to those found in the healthy population. The high levels of 8-oxo-dG in urine may be related to the increased induction of DNA repair activity in tumor tissue, and the changes observed after tumor resection support its potential use as a tumor marker.
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Zhang S, Sun X, Wang W, Cai L. Determination of urinary 8-hydroxy-2′-deoxyguanosine by a combination of on-line molecularly imprinted monolithic solid phase microextraction with high performance liquid chromatography-ultraviolet detection. J Sep Sci 2013; 36:752-7. [DOI: 10.1002/jssc.201200735] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 10/22/2012] [Accepted: 10/24/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Shaowen Zhang
- Department of Environmental Engineering and Chemistry; Luoyang Institute of Science and Technology; Luoyang; P. R. China
| | - Xueping Sun
- Department of Environmental Engineering and Chemistry; Luoyang Institute of Science and Technology; Luoyang; P. R. China
| | - Wanhui Wang
- Department of Environmental Engineering and Chemistry; Luoyang Institute of Science and Technology; Luoyang; P. R. China
| | - Lingshuang Cai
- Department of Agricultural and Biosystems Engineering; Iowa State University; Ames; IA; USA
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Basu S, Nachat-Kappes R, Caldefie-Chézet F, Vasson MP. Eicosanoids and adipokines in breast cancer: from molecular mechanisms to clinical considerations. Antioxid Redox Signal 2013; 18:323-60. [PMID: 22746381 DOI: 10.1089/ars.2011.4408] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Chronic inflammation is one of the foremost risk factors for different types of malignancies, including breast cancer. Additional risk factors of this pathology in postmenopausal women are weight gain, obesity, estrogen secretion, and an imbalance in the production of adipokines, such as leptin and adiponectin. Various signaling products of transcription factor, nuclear factor-kappaB, in particular inflammatory eicosanoids, reactive oxygen species (ROS), and cytokines, are thought to be involved in chronic inflammation-induced cancer. Together, these key components have an influence on inflammatory reactions in malignant tissue damage when their levels are deregulated endogenously. Prostaglandins (PGs) are well recognized in inflammation and cancer, and they are solely biosynthesized through cyclooxygenases (COXs) from arachidonic acid. Concurrently, ROS give rise to bioactive isoprostanes from arachidonic acid precursors that are also involved in acute and chronic inflammation, but their specific characteristics in breast cancer are less demonstrated. Higher aromatase activity, a cytochrome P-450 enzyme, is intimately connected to tumor growth in the breast through estrogen synthesis, and is interrelated to COXs that catalyze the formation of both inflammatory and anti-inflammatory PGs such as PGE(2), PGF(2α), PGD(2), and PGJ(2) synchronously under the influence of specific mediators and downstream enzymes. Some of the latter compounds upsurge the intracellular cyclic adenosine monophosphate concentration and appear to be associated with estrogen synthesis. This review discusses the role of COX- and ROS-catalyzed eicosanoids and adipokines in breast cancer, and therefore ranges from their molecular mechanisms to clinical aspects to understand the impact of inflammation.
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Affiliation(s)
- Samar Basu
- Biochemistry, Molecular Biology and Nutrition, University of Auvergne, Clermont-Ferrand, France.
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Peddireddy V, Siva Prasad B, Gundimeda SD, Penagaluru PR, Mundluru HP. Assessment of 8-oxo-7, 8-dihydro-2'-deoxyguanosine and malondialdehyde levels as oxidative stress markers and antioxidant status in non-small cell lung cancer. Biomarkers 2012; 17:261-8. [PMID: 22397584 DOI: 10.3109/1354750x.2012.664169] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The present investigation was taken up to evaluate the 8-oxo-7,8-dihydro-2'-deoxyguanosine and malondialdehyde as markers of oxidative stress, the levels of antioxidants and the correlations between these oxidative stress markers and antioxidants in lung cancer patients. METHODS The study included 222 patients (158 men and 64 women, age ranging from 32 to 85 years) and 207 control subjects (153 men and 54 women, aged 30-80 years) for the analysis of urinary excretion of 8-oxodG using an ELISA assay, plasma malondialdehyde using spectrophotometer and red cell Cu-Zn SOD and GPx activities by kit methods. RESULTS The levels of 8-oxodG and malondialdehyde were significantly higher (p < 0.001) and red cell superoxide dismutase and glutathione peroxidase activities (p < 0.001) were significantly lower in lung cancer patients than in controls. There was a significantly positive correlation between 8-oxodG and malondialdehyde (r=0.912, p < 0.001) and a negative correlation between 8-oxodG and antioxidants. CONCLUSIONS Our results demonstrate that an increased rate of oxidative stress might play a role in the pathogenesis of lung cancer as evidenced by a failure in the oxidant/antioxidant balance in favour of lipid peroxidation and DNA damage.
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Affiliation(s)
- Vidyullatha Peddireddy
- Institute of Genetics & Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, Andhra Pradesh, India
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Valdiglesias V, Fernández-Tajes J, Pásaro E, Méndez J, Laffon B. Identification of differentially expressed genes in SHSY5Y cells exposed to okadaic acid by suppression subtractive hybridization. BMC Genomics 2012; 13:46. [PMID: 22284234 PMCID: PMC3296583 DOI: 10.1186/1471-2164-13-46] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Accepted: 01/27/2012] [Indexed: 12/02/2022] Open
Abstract
Background Okadaic acid (OA), a toxin produced by several dinoflagellate species is responsible for frequent food poisonings associated to shellfish consumption. Although several studies have documented the OA effects on different processes such as cell transformation, apoptosis, DNA repair or embryogenesis, the molecular mechanistic basis for these and other effects is not completely understood and the number of controversial data on OA is increasing in the literature. Results In this study, we used suppression subtractive hybridization in SHSY5Y cells to identify genes that are differentially expressed after OA exposure for different times (3, 24 and 48 h). A total of 247 subtracted clones which shared high homology with known genes were isolated. Among these, 5 specific genes associated with cytoskeleton and neurotransmission processes (NEFM, TUBB, SEPT7, SYT4 and NPY) were selected to confirm their expression levels by real-time PCR. Significant down-regulation of these genes was obtained at the short term (3 and 24 h OA exposure), excepting for NEFM, but their expression was similar to the controls at 48 h. Conclusions From all the obtained genes, 114 genes were up-regulated and 133 were down-regulated. Based on the NCBI GenBank and Gene Ontology databases, most of these genes are involved in relevant cell functions such as metabolism, transport, translation, signal transduction and cell cycle. After quantitative PCR analysis, the observed underexpression of the selected genes could underlie the previously reported OA-induced cytoskeleton disruption, neurotransmission alterations and in vivo neurotoxic effects. The basal expression levels obtained at 48 h suggested that surviving cells were able to recover from OA-caused gene expression alterations.
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Affiliation(s)
- Vanessa Valdiglesias
- Toxicology Unit, Psychobiology Department, University of A Coruña, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071 A Coruña, Spain
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Kim H, Ku SY, Kang JW, Kim H, Kim YD, Kim SH, Choi YM, Kim JG, Moon SY. The 8-hydroxydeoxyguanosine concentrations according to hormone therapy and S326C polymorphism of OGG1 gene in postmenopausal women. Mol Genet Metab 2011; 104:644-7. [PMID: 21908221 DOI: 10.1016/j.ymgme.2011.08.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 08/16/2011] [Accepted: 08/16/2011] [Indexed: 12/26/2022]
Abstract
BACKGROUND The 8-hydroxydeoxyguanosine (8-OHdG) is widely used for determination of DNA damage since it is excised from oxidative damaged DNA with endonuclease repair enzymes coded by 8-oxoguanine DNA N-glycosylase gene (OGG1). The present study aimed at investigating whether hormone therapy (HT) may influence on the blood/urinary 8-OHdG levels and whether the level of 8-OHdG is different according to OGG1 S326C polymorphism in postmenopausal women receiving HT. METHODS In 102 postmenopausal women receiving HT, the 8-OHdG levels were measured in the blood and urine using high performance liquid chromatography (HPLC) before HT and 3 months after HT. The genotyping of the S326C polymorphism of the OGG1 was performed by polymerase chain reaction (PCR) and restriction enzyme fragment length polymorphism (RFLP) analysis. RESULTS After HT, mean blood 8-OHdG level significantly decreased compared to those before HT (P=0.003), while urinary 8-OHdG level did not show any difference according to HT. Pre-HT level of 8-OHdG was not different according to OGG1 genotypes and similar finding was demonstrated in post-HT 8-OHdG concentration. CONCLUSIONS These findings imply that hormone therapy can reduce blood 8-OHdG concentration, one of the markers of oxidative damage. Further study is needed to confirm this association in larger population.
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Affiliation(s)
- Hoon Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
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Capillary electrophoretic determination of DNA damage markers: content of 8-hydroxy-2'-deoxyguanosine and 8-nitroguanine in urine. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:3818-22. [PMID: 22098717 DOI: 10.1016/j.jchromb.2011.10.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 10/19/2011] [Accepted: 10/23/2011] [Indexed: 11/21/2022]
Abstract
A sensitive and low-cost analytical method has been developed to determine 8-hydroxy-2'-deoxyguanosine (8-OHdG) and 8-nitroguanine (8-NO(2)Gua) based on capillary electrophoresis with amperometric detection (CE-AD) after solid phase extraction (SPE). Under optimized condition, these two markers were well separated from other components coexisting in urine, exhibiting a linear calibration over the concentration range of 0.1-50.0 μg/mL with the detection limits ranging from 0.02 to 0.06 μg/mL. The relative standard deviations (RSDs) were in the range of 0.1-2.1% for peak area, 0.1-1.5% for migration time, respectively. The average recovery and RSD were within the range of 100.0-108.0% and 0.1-1.7%, respectively. It was found that the urinary contents of 8-OHdG and 8-NO(2)Gua in cancer patients were significantly higher than those in healthy ones.
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Broedbaek K, Weimann A, Stovgaard ES, Poulsen HE. Urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine as a biomarker in type 2 diabetes. Free Radic Biol Med 2011; 51:1473-9. [PMID: 21820047 DOI: 10.1016/j.freeradbiomed.2011.07.007] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 06/14/2011] [Accepted: 07/11/2011] [Indexed: 11/19/2022]
Abstract
The increasing prevalence of diabetes together with the associated morbidity and mortality calls for additional preventive and therapeutic strategies. New biomarkers that can be used in therapy control and risk stratification as alternatives to current methods are needed and can facilitate a more individualized and sufficient treatment of diabetes. Evidence derived from both epidemiological and mechanistic studies suggests that oxidative stress has an important role in mediating the pathologies of diabetic complications. A marker of intracellular oxidative stress that potentially could be used as a valuable biomarker in diabetes is the DNA oxidation marker 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), which can be assessed noninvasively in the urine, with minimal discomfort for the patient. In this review the analytical validity of 8-oxodG is addressed by highlighting important methodological issues. The available epidemiological evidence regarding urinary 8-oxodG and type 2 diabetes is presented. A possible role for DNA oxidation in cancer development in type 2 diabetes patients is discussed, followed by an evaluation of the potential of urinary 8-oxodG as a clinical biomarker in type 2 diabetes.
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Affiliation(s)
- Kasper Broedbaek
- Laboratory of Clinical Pharmacology Q7642, Rigshospitalet, DK-2200 Copenhagen, Denmark.
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Isabel RRM, Sandra GA, Rafael VP, Carmen MV, Josefina CE, del Carmen CEM, Rocío GM, Francisco AH, Elena CSM. Evaluation of 8-hydroxy-2′-deoxyguanosine (8-OHdG) adduct levels and DNA strand breaks in human peripheral blood lymphocytes exposedin vitroto polycyclic aromatic hydrocarbons with or without animal metabolic activation. Toxicol Mech Methods 2011; 22:170-83. [DOI: 10.3109/15376516.2011.623330] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Kumar A, Pant MC, Singh HS, Khandelwal S. Role of OGG1 Ser326Cys polymorphism and 8-oxoguanine DNA damage in risk assessment of squamous cell carcinoma of head and neck in North Indian population. Mutat Res 2011; 726:227-33. [PMID: 21986195 DOI: 10.1016/j.mrgentox.2011.09.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2011] [Revised: 09/07/2011] [Accepted: 09/25/2011] [Indexed: 10/17/2022]
Abstract
Squamous cell carcinoma of head and neck (SCCHN), one of the leading cancers worldwide, is most prevalent in Indian sub-continent. The major risk factors involved are smoking and consumption of alcohol, since they provide high free radical generating environment. We studied 8-oxoguanine DNA-glycosylase (OGG1) Ser326Cys polymorphism in 278 SCCHN cases and 278 matched controls by PCR-RFLP and observed that the variant genotype Ser/Cys exhibited an enhanced risk of ∼1.7 folds (OR=1.71, 95% CI=1.20-2.93) and Cys/Cys ∼2.5 folds (OR=2.55, 95% CI=1.29-5.00). Furthermore, we found a significant increase in salivary cell 8-OHdG with respect to Ser/Cys and Cys/Cys genotypes of OGG1 in SCCHN cases, when compared to Ser/Ser and Ser/Cys genotypes of the control population. Our results demonstrate that Ser326Cys variant genotype is associated with an increased risk of SCCHN in north India. Ser326Cys variant genotype was found to accumulate more of 8-OHdG, which may serve as a biomarker for early diagnosis of SCCHN.
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Affiliation(s)
- Anil Kumar
- CSIR-Indian Institute of Toxicology Research, Lucknow, India
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Karihtala P, Kauppila S, Puistola U, Jukkola-Vuorinen A. Divergent behaviour of oxidative stress markers 8-hydroxydeoxyguanosine (8-OHdG) and 4-hydroxy-2-nonenal (HNE) in breast carcinogenesis. Histopathology 2011; 58:854-62. [PMID: 21585424 DOI: 10.1111/j.1365-2559.2011.03835.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AIMS To clarify the role of oxidative stress during breast carcinogenesis by studying the expression of 8-hydroxydeoxyguanosine (8-OHdG) (a marker of oxidative DNA damage) and 4-hydroxy-2-nonenal (HNE) (a marker of lipid peroxidation) during the different phases of breast carcinogenesis. METHODS AND RESULTS The study material consisted of a total of 219 patients: 31 with usual ductal hyperplasia (UDH), 25 with atypical ductal hyperplasia (ADH), 30 with ductal carcinoma in situ (DCIS) and 133 with invasive carcinoma. The expression of 8-OHdG and HNE were evaluated immunohistochemically. Both 8-OHdG (77.4%) and HNE (45.8%) expression was already seen in UDH lesions. Interestingly, the trend of these two immunostainings during breast carcinogenesis was diverse. 8-OHdG expression diminished significantly in invasive breast carcinomas compared to non-invasive lesions (P < 0.005 when set against non-invasive cohorts). Also within the same lesions, 8-OHdG expression was the most intensive in benign cells. Conversely, HNE immunostaining was strongest in invasive breast carcinomas (UDH versus invasive cohort, P = 0.015). CONCLUSIONS 4-hydroxy-2-nonenal as a marker of lipid peroxidation increases during breast carcinogenesis, reflecting the role of oxidative stress in the pathogenesis of breast cancer. However, 8-OHdG shows diminished levels in carcinomas, possibly resulting from the induction of DNA repair in these invasive lesions.
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Affiliation(s)
- Peeter Karihtala
- Departments of Oncology and Radiotherapy, Oulu University Hospital and University of Oulu, Oulu, Finland.
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Beketic-Oreskovic L, Ozretic P, Rabbani ZN, Jackson IL, Sarcevic B, Levanat S, Maric P, Babic I, Vujaskovic Z. Prognostic significance of carbonic anhydrase IX (CA-IX), endoglin (CD105) and 8-hydroxy-2'-deoxyguanosine (8-OHdG) in breast cancer patients. Pathol Oncol Res 2011; 17:593-603. [PMID: 21249485 DOI: 10.1007/s12253-010-9355-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Accepted: 12/28/2010] [Indexed: 02/05/2023]
Abstract
The aim of this study was to examine the prognostic significance of carbonic anhydrase IX (CA-IX), an endogenous marker for tumor hypoxia; endoglin (CD105), a proliferation-associated and hypoxia-inducible glycoprotein and 8-hydroxy-2'-deoxyguanosine (8-OHdG), an oxidative DNA lesion, in breast cancer patients. Immunohistochemical expressions of CA-IX, CD105 and 8-OHdG, analyzed on paraffin-embedded tumor tissues from forty female breast cancer patients, were used to assess their prognostic implication on overall survival (OS) and relapse-free survival (RFS). Patients with high CA-IX expression (above cut-off value) had a higher occurrence of relapse (P = = 0.002). High CA-IX expression was significantly associated with shorter RFS (P < 0.001, hazard ratio (HR) 0.21) and shorter OS (P < 0.001, HR 0.19). Lymph node negative patients with high CA-IX expression had worse RFS (P = 0.031, HR 0.14) and OS (P = 0.005, HR 0.05). Patients with grade I&II tumors and high CA-IX expression showed shorter RFS (P = 0.028, HR 0.28) and OS (P = 0.008, HR 0.20). Worse OS (P = 0.046, HR 0.28) was found in subgroup of patients with grade II tumors and high CA-IX expression. Among all three markers, only high CA-IX expression was strong independent prognostic indicator for shorter OS (HR 4.14, 95% CI 1.28-13.35, P = 0.018) and shorter RFS (HR 3.99, 95% CI 1.38-11.59, P = 0.011). Elevated expression of CA-IX was an independent prognostic factor for decreased RFS and OS and a significant marker for tumor aggressiveness. CD105 had week prognostic value; whereas, 8-OHdG, in this study, did not provide sufficient evidence as a prognostic indicator in breast cancer patients.
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Affiliation(s)
- Lidija Beketic-Oreskovic
- Department of Radiation Oncology, University of Zagreb, University Hospital for Tumors, Zagreb, Croatia.
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Kałużna-Czaplińska J. Current medical research with the application of coupled techniques with mass spectrometry. Med Sci Monit 2011; 17:RA117-23. [PMID: 21525822 PMCID: PMC3539600 DOI: 10.12659/msm.881756] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The most effective methods of analysis of organic compounds in biological fluids are coupled chromatographic techniques. Capillary gas chromatography/mass spectrometry (GC-MS) allows the most efficient separation, identification and quantification of volatile metabolites in biological fluids. Liquid chromatography-mass spectrometry (LC-MS) is especially suitable for the analysis of non-volatile and/or thermally unstable compounds. A major drawback of liquid chromatography-mass spectrometry is that no standard spectral libraries such as NIST and Wiley for GC-MS are available to facilitate the identification of unknown compounds. Moreover, the identification of potential new compounds, especially new biomarkers in LC-MS, is much more challenging than in GC-MS. Capillary electrophoresis coupled with mass spectrometry (CE-MS) has been widely used to characterize metabolomes. Capillary electrophoresis is a powerful technique for the separation of charged metabolites, offering high analyte resolution. The advantages of CE-MS are applicability for hydrophilic metabolites, robust separation efficiency and short duration of analysis. This review provides an overview of current chromatographic methods – gas chromatography – mass spectrometry, liquid chromatography – mass spectrometry and capillary electrophoresis-mass spectrometry – and their applications in current medical research. The focus is on the description of metabonomics research, strategies for biomarkers identification, medical diagnoses of diseases and research of drugs.
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Affiliation(s)
- Joanna Kałużna-Czaplińska
- Department of Chemistry, Institute of General and Ecological Chemistry, Technical University of Lodz, Lodz, Poland.
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Valdiglesias V, Laffon B, Pásaro E, Cemeli E, Anderson D, Méndez J. Induction of oxidative DNA damage by the marine toxin okadaic acid depends on human cell type. Toxicon 2011; 57:882-8. [PMID: 21396392 DOI: 10.1016/j.toxicon.2011.03.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 02/19/2011] [Accepted: 03/01/2011] [Indexed: 12/19/2022]
Abstract
The marine toxin okadaic acid (OA) is the main representative of diarrhoeic shellfish poisoning (DSP) toxins. Its ingestion induces nausea, vomiting, diarrhoea and abdominal ache. It has also been found to trigger cellular and molecular effects at low concentrations. Its mechanism of action has not been described yet. Results of a previous study showed that OA can induce cytotoxic and genotoxic effects, both directly and indirectly, and modulations in DNA repair processes in three different types of human cells (leukocytes, SHSY5Y neuroblastoma and HepG2 cells). These effects varied depending on the type of cell and the concentration employed (Valdiglesias et al., 2010). On that basis, the ability of OA to induce oxidative DNA damage on the same cell types was investigated in the present study. To this end, the antioxidant enzymes catalase and N-acetylcysteine, and the human DNA- glycosylase hOGG1 were used in combination with the alkaline Comet assay. The cells were treated with a range of OA concentrations (5-1000 nM) in the presence and absence of S9 fraction. The results of this study showed that OA induces oxidative DNA damage directly in leukocytes, directly and indirectly in SHSY5Y cells, while it does not induce oxidative DNA damage in HepG2 cells. Combining the outcomes of both studies, the data showed that OA induces both cytotoxicity and genotoxicity, including DNA strand breaks and oxidative DNA damage, in the cells evaluated. However, the extent of these effects are cell type dependent.
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Affiliation(s)
- Vanessa Valdiglesias
- Toxicology Unit, Psychobiology Department, University of A Coruña, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071 A Coruña, Spain
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Sova H, Jukkola-Vuorinen A, Puistola U, Kauppila S, Karihtala P. 8-Hydroxydeoxyguanosine: a new potential independent prognostic factor in breast cancer. Br J Cancer 2010; 102:1018-23. [PMID: 20179711 PMCID: PMC2844025 DOI: 10.1038/sj.bjc.6605565] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Revised: 01/07/2010] [Accepted: 01/12/2010] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND 8-Hydroxydeoxyguanosine (8-oxodG) is the commonly used marker of oxidative stress-derived DNA damage. 8-OxodG formation is regulated by local antioxidant capacity and DNA repair enzyme activity. Earlier studies have reported contradictory data on the function of 8-oxodG as a prognostic factor in different cancer types. METHODS We assessed pre-operative serum 8-oxodG levels with an enzyme-linked immunosorbent assay in a well-defined series of 173 breast cancer patients. 8-OxodG expression in the nuclei of cancer cells from 150 of these patients was examined by immunohistochemistry. RESULTS The serum 8-oxodG levels and immunohistochemical 8-oxodG expression were in concordance with each other (P<0.05). Negative 8-oxodG immunostaining was an independent prognostic factor for poor breast cancer-specific survival according to the multivariate analysis (P<0.01). This observation was even more remarkable when ductal carcinomas only (n=140) were considered (P<0.001). A low serum 8-oxodG level was associated statistically significantly with lymphatic vessel invasion and a positive lymph node status. CONCLUSIONS Low serum 8-oxodG levels and a low immunohistochemical 8-oxodG expression were associated with an aggressive breast cancer phenotype. In addition, negative 8-oxodG immunostaining was a powerful prognostic factor for breast cancer-specific death in breast carcinoma patients.
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MESH Headings
- 8-Hydroxy-2'-Deoxyguanosine
- Adult
- Aged
- Aged, 80 and over
- Biomarkers, Tumor/analysis
- Biomarkers, Tumor/metabolism
- Breast Neoplasms/diagnosis
- Breast Neoplasms/metabolism
- Breast Neoplasms/mortality
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/diagnosis
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/mortality
- Carcinoma, Ductal, Breast/pathology
- Deoxyguanosine/analogs & derivatives
- Deoxyguanosine/blood
- Deoxyguanosine/metabolism
- Female
- Humans
- Immunohistochemistry
- Middle Aged
- Neoplasm Staging
- Prognosis
- Survival Analysis
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Affiliation(s)
- H Sova
- Department of Oncology and Radiotherapy, Oulu University Hospital, Finland.
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Laffon B, Valdiglesias V, Pásaro E, Méndez J. The organic selenium compound selenomethionine modulates bleomycin-induced DNA damage and repair in human leukocytes. Biol Trace Elem Res 2010; 133:12-9. [PMID: 19468696 DOI: 10.1007/s12011-009-8407-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2009] [Accepted: 05/08/2009] [Indexed: 11/30/2022]
Abstract
The objective of this work was to evaluate the effects of selenomethionine (SeMet) on the induction, repair, and persistence of DNA damage in human leukocytes challenged with bleomycin (BLM). Comet assay was used to determine DNA strand breaks and hOGG1 for the specific recognition of oxidative damage. Leukocytes were (A) stimulated with phytohemagglutinin, (B) damaged with BLM, and (C) incubated to allow DNA repair. Comet assay was performed after each phase. SeMet (50 microM) was supplemented either during phase A, B, or C, or AB, or ABC. Treatment with SeMet decreased BLM-induced stand breaks when added during phase AB. Results obtained after the repair period indicate that SeMet favors repair of DNA damage especially when applied during phase AB. The comparison between DNA damage before and after repair showed that BLM-induced damage was repaired better in the presence of SeMet. Our results showed antigenotoxic effect of SeMet on BLM-induced DNA and also on repair and persistence of this damage when applied before and simultaneously with BLM.
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Affiliation(s)
- Blanca Laffon
- Toxicology Unit, Department of Psychobiology, University of A Coruña, Edificio de Servicios Centrales de Investigación, Campus Elviña s/n, 15071, A Coruña, Spain.
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Lee KF, Chung WY, Benzie IFF. Urine 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), a specific marker of oxidative stress, using direct, isocratic LC-MS/MS: Method evaluation and application in study of biological variation in healthy adults. Clin Chim Acta 2009; 411:416-22. [PMID: 20035732 DOI: 10.1016/j.cca.2009.12.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2009] [Revised: 12/09/2009] [Accepted: 12/16/2009] [Indexed: 11/20/2022]
Abstract
BACKGROUND Urine 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) is a specific biomarker of oxidative stress. We evaluated a modified LC-MS/MS assay for urine 8-oxodG and determined biological variation in healthy adults. METHOD Untreated urine was injected into an isocratic LC-MS/MS system (positive-ion MRM mode). Urine 8-oxodG in 51 healthy volunteers was measured; within- and between-day variations in 23 healthy volunteers were investigated. RESULTS Dose-response was linear to 452 nmol/l; limit of detection=2.3 nmol/l; within-run and between-run CVs were <3.0% and <4.7%, respectively; recovery=97%-101%; accuracy=97.7-103.5%. Urine 8-oxodG (median, mean [SD]): 1.70, 1.70[0.60]nmol/mmol creatinine (n=51). Men had higher (p=0.027) concentrations than women matched for age and body mass index: mean [SD]: 1.90[1.60]; n=26 vs. 1.50[0.55]; n=25. Within- and between-day variations were wide but random. No significant differences were seen overall across time-points within 1 day or at the same time-point across 5 consecutive days. CONCLUSIONS The method has advantages of speed and relative simplicity as it does not require sample pre-treatment for 8-oxodG extraction, the use of internal standard or gradient LC elution and has high linearity, specificity, precision and recovery. Biological variation in urine 8-oxodG is wide, but no within- or between-day differences at the group concentration were seen in healthy adults.
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Affiliation(s)
- Kam-fai Lee
- Department of Health Technology & Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
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Wang Y, Li J, Liu Y, Ma R, Jia W, Cui H, Wang H. Fabrication of the DNA/poly(3-methylthiophene) composite film modified electrode and its application for the study on the voltammetric behavior and determination of 8-hydroxy-2′-deoxyguanosine. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11426-009-0241-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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