1
|
Silva MAP, Figueiredo DBS, de Carvalho LR, Braz LG, Braz MG. Modulation of gene expression and influence of gene polymorphisms related to genotoxicity and redox status on occupational exposure to inhaled anesthetics. Int J Hyg Environ Health 2024; 256:114307. [PMID: 38065035 DOI: 10.1016/j.ijheh.2023.114307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/19/2023]
Abstract
The extensive use of inhalational anesthetics contributes to both indoor and outdoor (environmental) pollution. The influence of genetic susceptibility on DNA damage and oxidative stress and the possible modulation of gene expression have not yet been investigated upon occupational exposure to waste anesthetic gases (WAGs). This study assessed 8-oxoguanine DNA glycosylase 1 (OGG1) and superoxide dismutase 2 (SOD2) gene expression, which are related to oxidized DNA repair and antioxidant capacity, respectively, and the influence of their polymorphisms (OGG1 rs1052133 and SOD2 rs4880) in 100 professionals highly exposed to WAGs and 93 unexposed volunteers (control group). Additionally, X-ray repair cross complementing 1 (XRCC1 rs25487 and rs1799782) and ataxia telangiectasia mutated (ATM rs600931) gene polymorphisms as well as genetic instability (micronucleus-MN and nuclear bud-NBUD) and oxidative stress (malondialdehyde-MDA and ferric reducing antioxidant power-FRAP) biomarkers were assessed in the groups (control and exposed) and in the subgroups of the exposed group according to job occupation (anesthesiologists versus surgeons/technicians). Except for the ATM TT controls (associated with increased FRAP), there were no influences of OGG1, XRCC1, ATM, and SOD2 polymorphisms on MN, NBUD, MDA, and FRAP values in exposed or control subjects. No significant difference in the expression of either gene evaluated (OGG1 and SOD2) was found between the exposed and control groups. Increased OGG1 expression was observed among OGG1 -/Cys individuals only in the control group. Among the exposed group, anesthesiologists had a greater duration of WAG exposure (both h/week and years) than surgeons/technicians, which was associated with increased MDA and decreased antioxidant capacity (FRAP) and SOD2 expression (redox status). Higher expression of OGG1 was found in -/Cys surgeons/technicians than in anesthesiologists with the same genotype. Increased antioxidant capacity was noted in the surgeons/technicians carrying the ATM T allele and in those carrying XRCC1 -/Gln. Increased MN was influenced by OGG1 -/Cys in surgeons/technicians. Anesthesiologists with ATM CC exhibited increased MN, and those carrying the C allele (CC/CT genotype) exhibited increased NBUD. SOD2 polymorphism did not seem to be relevant for WAG exposure. These findings contribute to advancing the knowledge on genetic susceptibility/gene expression/genetic instability/oxidative stress, including differences in job occupation considering the workload, in response to occupational exposure to WAGs.
Collapse
Affiliation(s)
- Mariane A P Silva
- GENOTOX Laboratory, Medical School, Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Drielle B S Figueiredo
- GENOTOX Laboratory, Medical School, Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Lídia R de Carvalho
- Institute of Biosciences, Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Leandro G Braz
- GENOTOX Laboratory, Medical School, Sao Paulo State University - UNESP, Botucatu, Brazil
| | - Mariana G Braz
- GENOTOX Laboratory, Medical School, Sao Paulo State University - UNESP, Botucatu, Brazil.
| |
Collapse
|
2
|
Li C, Xue Y, Ba X, Wang R. The Role of 8-oxoG Repair Systems in Tumorigenesis and Cancer Therapy. Cells 2022; 11:cells11233798. [PMID: 36497058 PMCID: PMC9735852 DOI: 10.3390/cells11233798] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/09/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
Tumorigenesis is highly correlated with the accumulation of mutations. The abundant and extensive DNA oxidation product, 8-Oxoguanine (8-oxoG), can cause mutations if it is not repaired by 8-oxoG repair systems. Therefore, the accumulation of 8-oxoG plays an essential role in tumorigenesis. To avoid the accumulation of 8-oxoG in the genome, base excision repair (BER), initiated by 8-oxoguanine DNA glycosylase1 (OGG1), is responsible for the removal of genomic 8-oxoG. It has been proven that 8-oxoG levels are significantly elevated in cancer cells compared with cells of normal tissues, and the induction of DNA damage by some antitumor drugs involves direct or indirect interference with BER, especially through inducing the production and accumulation of reactive oxygen species (ROS), which can lead to tumor cell death. In addition, the absence of the core components of BER can result in embryonic or early post-natal lethality in mice. Therefore, targeting 8-oxoG repair systems with inhibitors is a promising avenue for tumor therapy. In this study, we summarize the impact of 8-oxoG accumulation on tumorigenesis and the current status of cancer therapy approaches exploiting 8-oxoG repair enzyme targeting, as well as possible synergistic lethality strategies involving exogenous ROS-inducing agents.
Collapse
Affiliation(s)
- Chunshuang Li
- Center for Cell Structure and Function, Key Laboratory of Animal Resistance Biology of Shandong Province, College of Life Sciences, Shandong Normal University, Jinan 250014, China
- The Key Laboratory of Molecular Epigenetics of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
| | - Yaoyao Xue
- The Key Laboratory of Molecular Epigenetics of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
| | - Xueqing Ba
- The Key Laboratory of Molecular Epigenetics of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
- Correspondence: (X.B.); (R.W.)
| | - Ruoxi Wang
- Center for Cell Structure and Function, Key Laboratory of Animal Resistance Biology of Shandong Province, College of Life Sciences, Shandong Normal University, Jinan 250014, China
- Correspondence: (X.B.); (R.W.)
| |
Collapse
|
3
|
Leu M, Riebeling T, Dröge LH, Hubert L, Guhlich M, Wolff HA, Brockmöller J, Gaedcke J, Rieken S, Schirmer MA. 8-Oxoguanine DNA Glycosylase (OGG1) Cys326 Variant: Increased Risk for Worse Outcome of Patients with Locally Advanced Rectal Cancer after Multimodal Therapy. Cancers (Basel) 2021; 13:cancers13112805. [PMID: 34199885 PMCID: PMC8200071 DOI: 10.3390/cancers13112805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/17/2021] [Accepted: 05/31/2021] [Indexed: 11/16/2022] Open
Abstract
Despite excellent loco-regional control by multimodal treatment of locally advanced rectal cancer, a substantial portion of patients succumb to this disease. As many treatment effects are mediated via reactive oxygen species (ROS), we evaluated the effect of single nucleotide polymorphisms (SNPs) in ROS-related genes on clinical outcome. Based on the literature, eight SNPs in seven ROS-related genes were assayed. Eligible patients (n = 287) diagnosed with UICC stage II/III rectal cancer were treated multimodally starting with neoadjuvant radiochemotherapy (N-RCT) according to the clinical trial protocols of CAO/ARO/AIO-94, CAO/ARO/AIO-04, TransValid-A, and TransValid-B. The median follow-up was 64.4 months. The Ser326Cys polymorphism in the human OGG1 gene affected clinical outcome, in particular cancer-specific survival (CSS). This effect was comparable in extent to the ypN status, an already established strong prognosticator for patient outcome. Homozygous and heterozygous carriers of the Cys326 variant (n = 105) encountered a significantly worse CSS (p = 0.0004 according to the log-rank test, p = 0.01 upon multiple testing adjustment). Cox regression elicited a hazard ratio for CSS of 3.64 (95% confidence interval 1.70-7.78) for patients harboring the Cys326 allele. In a multivariable analysis, the effect of Cys326 on CSS was preserved. We propose the genetic polymorphism Ser326Cys as a promising biomarker for outcome in rectal cancer.
Collapse
Affiliation(s)
- Martin Leu
- Clinic of Radiotherapy and Radiation Oncology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany; (M.L.); (T.R.); (L.H.D.); (L.H.); (M.G.); (H.A.W.); (S.R.)
| | - Theresa Riebeling
- Clinic of Radiotherapy and Radiation Oncology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany; (M.L.); (T.R.); (L.H.D.); (L.H.); (M.G.); (H.A.W.); (S.R.)
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Leif Hendrik Dröge
- Clinic of Radiotherapy and Radiation Oncology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany; (M.L.); (T.R.); (L.H.D.); (L.H.); (M.G.); (H.A.W.); (S.R.)
| | - Laura Hubert
- Clinic of Radiotherapy and Radiation Oncology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany; (M.L.); (T.R.); (L.H.D.); (L.H.); (M.G.); (H.A.W.); (S.R.)
| | - Manuel Guhlich
- Clinic of Radiotherapy and Radiation Oncology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany; (M.L.); (T.R.); (L.H.D.); (L.H.); (M.G.); (H.A.W.); (S.R.)
| | - Hendrik Andreas Wolff
- Clinic of Radiotherapy and Radiation Oncology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany; (M.L.); (T.R.); (L.H.D.); (L.H.); (M.G.); (H.A.W.); (S.R.)
- Medical Center, Department of Radiation Oncology, University of Regensburg, 93053 Regensburg, Germany
| | - Jürgen Brockmöller
- Institute of Clinical Pharmacology, University Medical Center Göttingen, 37075 Göttingen, Germany;
| | - Jochen Gaedcke
- Clinic of General, Visceral, and Pediatric Surgery, University Medical Center Göttingen, 37075 Göttingen, Germany;
| | - Stefan Rieken
- Clinic of Radiotherapy and Radiation Oncology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany; (M.L.); (T.R.); (L.H.D.); (L.H.); (M.G.); (H.A.W.); (S.R.)
| | - Markus Anton Schirmer
- Clinic of Radiotherapy and Radiation Oncology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany; (M.L.); (T.R.); (L.H.D.); (L.H.); (M.G.); (H.A.W.); (S.R.)
- Institute of Clinical Pharmacology, University Medical Center Göttingen, 37075 Göttingen, Germany;
- Correspondence: ; Tel.: +49-551-39-8866
| |
Collapse
|
4
|
Caffrey PJ, Delaney S. Chromatin and other obstacles to base excision repair: potential roles in carcinogenesis. Mutagenesis 2021; 35:39-50. [PMID: 31612219 DOI: 10.1093/mutage/gez029] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 09/13/2019] [Indexed: 12/29/2022] Open
Abstract
DNA is comprised of chemically reactive nucleobases that exist under a constant barrage from damaging agents. Failure to repair chemical modifications to these nucleobases can result in mutations that can cause various diseases, including cancer. Fortunately, the base excision repair (BER) pathway can repair modified nucleobases and prevent these deleterious mutations. However, this pathway can be hindered through several mechanisms. For instance, mutations to the enzymes in the BER pathway have been identified in cancers. Biochemical characterisation of these mutants has elucidated various mechanisms that inhibit their activity. Furthermore, the packaging of DNA into chromatin poses another obstacle to the ability of BER enzymes to function properly. Investigations of BER in the base unit of chromatin, the nucleosome core particle (NCP), have revealed that the NCP acts as a complex substrate for BER enzymes. The constituent proteins of the NCP, the histones, also have variants that can further impact the structure of the NCP and may modulate access of enzymes to the packaged DNA. These histone variants have also displayed significant clinical effects both in carcinogenesis and patient prognosis. This review focuses on the underlying molecular mechanisms that present obstacles to BER and the relationship of these obstacles to cancer. In addition, several chemotherapeutics induce DNA damage that can be repaired by the BER pathway and understanding obstacles to BER can inform how resistance and/or sensitivity to these therapies may occur. With the understanding of these molecular mechanisms, current chemotherapeutic treatment regiments may be improved, and future therapies developed.
Collapse
Affiliation(s)
- Paul J Caffrey
- Department of Chemistry, Brown University, Providence, RI
| | - Sarah Delaney
- Department of Chemistry, Brown University, Providence, RI
| |
Collapse
|
5
|
Kaur K, Kaur R. Impact of single nucleotide polymorphisms in the OGG1 and XRCC1 genes on modulation of DNA damage in pesticide-exposed agricultural workers in Punjab, North-West India. Biomarkers 2020; 25:498-505. [PMID: 32643432 DOI: 10.1080/1354750x.2020.1794040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Pesticide-induced DNA damage is primarily repaired by base excision repair (BER) pathway. However, polymorphism in DNA repair genes may modulate individual's DNA repair capacity (DRC) leading to increased genotoxicity and adverse health effects. Our first study in North-West Indian population aimed to evaluate the impact of OGG1 rs1052133 (Ser326Cys; C1245G), XRCC1 rs1799782 (Arg194Trp; C26304T) and XRCC1 rs25487 (Arg399Gln; G28152A) polymorphisms on the modulation of pesticide-induced DNA damage in a total of 450 subjects (225 pesticide-exposed agricultural workers and 225 age- and sex-matched controls). DNA damage was estimated by alkaline comet assay using silver-staining method. Genotyping was carried out by PCR-RFLP using site-specific restriction enzymes. Mann-Whitney U-test revealed elevation in DNA damage parameters (p < 0.01) in pesticide-exposed agricultural workers than controls. Chi-square test showed significant (p < 0.05) differences in the XRCC1 Arg194Trp (C26304T) and Arg399Gln (G28152A) genotypes among two groups. Multivariate logistic-regression analysis revealed that heterozygous genotypes of OGG1 rs1052133 (326Ser/Cys; 1245CA), XRCC1 rs1799782 (194Arg/Trp; 26304CT) and XRCC1 rs25487 (399Arg/Gln; 2815GA) were positively associated (p < 0.05) with elevated DNA damage parameters in pesticide-exposed agricultural workers. Our results strongly indicate significant positive association of variant OGG1 and XRCC1 genotypes with reduced DRC and higher pesticide-induced DNA damage in North-West Indian agricultural workers.
Collapse
Affiliation(s)
- Karashdeep Kaur
- Department of Biotechnology, Sri Guru Granth Sahib World University, Punjab, India.,Department of Medical Lab Sciences, Gulzar Group of Institutes, Punjab, India
| | - Rupinder Kaur
- Department of Biotechnology, Sri Guru Granth Sahib World University, Punjab, India
| |
Collapse
|
6
|
Chang WS, Shen TC, Liao JM, Tsai YT, Hsia TC, Wu HC, Tsai CW, Bau DT. Significant Contribution of DNA Repair Human 8-Oxoguanine DNA N-Glycosylase 1 Genotypes to Renal Cell Carcinoma. Onco Targets Ther 2020; 13:1583-1591. [PMID: 32110055 PMCID: PMC7039087 DOI: 10.2147/ott.s231733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/06/2020] [Indexed: 11/24/2022] Open
Abstract
Introduction DNA repair systems play essential roles in genomic stability and carcinogenesis. Therefore, genotypes at DNA repair loci may contribute to the determination of personal susceptibility to cancers. The contribution of human 8-oxoguanine DNA N-glycosylase 1 (hOGG1) genotypes to renal cell carcinoma (RCC) is largely unknown. This study aimed to evaluate the contributions of hOGG1 rs1052133 genotypes to the RCC risk. Methods We evaluated the contribution of hOGG1 rs1052133 (G/C) genotypes among 118 cases and 590 controls and analyzed the interactions of hOGG1 genotypes with smoking, alcohol drinking, hypertension, and diabetes status. Results The hOGG1 rs1052133 CC genotype was significantly associated with a decreased RCC risk compared with that of the GG genotype (odds ratio [OR] = 0.25, 95% confidence interval [CI] = 0.09–0.72, p = 0.0049). The frequency of the rs1052133 C allele was significantly low in the RCC group (22.5% vs 31.2%; OR = 0.64; 95% CI = 0.46–0.89, p = 0.0074). Stratifying the analysis according to smoking, alcohol drinking, and diabetes status revealed no difference in the rs1052133 genotype distribution among these subgroups. A significant differential distribution of rs1052133 genotypes was observed among subjects with hypertension. Conclusion The CC genotype of rs1052133 may play a role in determining RCC susceptibility among Taiwanese people and may serve as a biomarker of RCC, particularly in patients with hypertension.
Collapse
Affiliation(s)
- Wen-Shin Chang
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Te-Chun Shen
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan.,Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan
| | - Jiuan-Miaw Liao
- Department of Physiology, Chung Shan Medical University and Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yueh-Ting Tsai
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Te-Chun Hsia
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Hsi-Chin Wu
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan
| | - Chia-Wen Tsai
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Da-Tian Bau
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan.,Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| |
Collapse
|
7
|
Hsu PC, Chen CC, Tzeng HE, Hsu YN, Kuo CC, Lin ML, Chang WS, Wang YC, Tsai CW, Pei JS, Bau DAT. HOGG1 rs1052133 Genotypes and Risk of Childhood Acute Lymphoblastic Leukemia in a Taiwanese Population. In Vivo 2019; 33:1081-1086. [PMID: 31280195 DOI: 10.21873/invivo.11576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 05/27/2019] [Accepted: 05/28/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND/AIM Cells suffer from oxidative DNA damage which leads to the accumulation of 8-oxoguanine (8-oxoG) adducts in our genome that can become carcinogenic. The human 8-oxoG DNA glycosylase 1 (hOGG1) plays a central role in repairing these 8-oxoGs via the base excision repair pathway. Mounting evidence has suggested that hOGG1 polymorphisms may affect the activity of hOGG1 and serve as genomic markers for the prediction of personal susceptibility to several cancers. To determine whether the commonly examined hOGG1 rs1052133 (Ser326Cys) polymorphism is associated with the risk of childhood acute lymphoblastic leukemia (ALL) among Taiwanese children, we genotyped the hOGG1 rs1052133 (Ser326Cys) in 266 cases and 266 controls. RESULTS The distributions of the GG, CG and CC genotypes at the hOGG1 rs1052133 were 49.2, 39.1 and 11.7% in the control group and 48.1, 36.1 and 15.8% in the case group (p=0.3656). The combined genotypes CG+CC were not associated with increased risk of childhood ALL (odds ratio [OR]=1.05, 95% confidence interval [CI]=0.74-1.47, p=0.7947). CONCLUSION The hOGG1 rs1052133 polymorphism is not associated with susceptibility to childhood ALL in the Taiwanese population.
Collapse
Affiliation(s)
- Pei-Chen Hsu
- Department of Pediatrics, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C
| | - Chao-Chun Chen
- Department of Pediatrics, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C
| | - Huey-En Tzeng
- Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Yuan-Nian Hsu
- Department of Family Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C
| | - Chien-Chung Kuo
- Department of Pediatric Orthopedics, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Meng-Liang Lin
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan, R.O.C
| | - Wen-Shin Chang
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Yun-Chi Wang
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Chia-Wen Tsai
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan, R.O.C.
| | - Jen-Sheng Pei
- Department of Pediatrics, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C. .,Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - DA-Tian Bau
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan, R.O.C. .,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan, R.O.C.,Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan, R.O.C
| |
Collapse
|
8
|
Genetic variants of DNA repair pathway genes on lung cancer risk. Pathol Res Pract 2019; 215:152548. [PMID: 31337555 DOI: 10.1016/j.prp.2019.152548] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/07/2019] [Accepted: 07/17/2019] [Indexed: 11/21/2022]
Abstract
As is commonly perceived, polymorphisms in genes of deoxyribonucleic acid (DNA) repair pathway plays a fundamental role in defective DNA repair and mutagenesis prevention and serves to contribute to the individual susceptibility to the development of a variety of cancers. Recently, an increasing number of studies have been dedicated to the contentious and ambiguous links between polymorphisms in genes of DNA repair pathway and lung cancer (LC) risk. In response, a comprehensive updated meta-analysis has been proposed herein to assess the correlation between polymorphisms of DNA repair pathway genes and susceptibility to LC. This paper has identified and retrieved eligible articles from PubMed, Google Scholar, Web of Science, and CNKI databases till February 20, 2019. Finally, 295 case-control studies as to the fourteen polymorphisms of DNA repair pathway genes were enrolled. When the results have been pooled, we have brought to light the conclusion that ERCC2-rs13181 polymorphism has an elevated association with LC risk under allele, heterozygote, and dominant comparisons. In the subgroup analysis by ethnicity, we have found that the Caucasian individuals with "B" variant possess risk of LC which was more than twice as much as allele, homozygote, and recessive models. In comparison, Asian carriers of rs13181 polymorphism in ERCC2 gene are more susceptible to LC in heterozygote, dominant models. To sum up, ERCC2-rs13181 polymorphism could be a critical factor in stimulating LC evolvement. Future studies with a larger sample size and multivariate factors are needed to vindicate these findings.
Collapse
|
9
|
Dhillon VS, Yeoh E, Salisbury C, Butters J, Di Matteo A, Olver I, Fenech M. Cytokinesis Block Micronucleus Cytome (CBMN Cyt) Assay Biomarkers and Their Association With Radiation Sensitivity Phenotype in Prostate Cancer Cases and DNA Repair Gene hOGG1 (C1245G) Polymorphism. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2018; 59:813-821. [PMID: 30264500 DOI: 10.1002/em.22240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/13/2018] [Accepted: 08/16/2018] [Indexed: 06/08/2023]
Abstract
Prostate cancer (PC) is commonly diagnosed cancer in men but only a few risk factors, such as family history, ethnicity, and age have been established. Chromosomal instability is another possible risk factor but this has not been adequately explained previously. In this study, we tested the hypotheses that peripheral blood lymphocytes (PBL) of PC patients have (1) an abnormally high level of chromosomal instability; (2) that they are hypersensitive to ionizing radiation-induced DNA damage; and (3) that these phenotypes are affected by hOGG1 (C1245G) polymorphism. These experiments were performed using the cytokinesis-block micronucleus Cytome (CBMN cyt) assay in PC cases and controls. We found that spontaneous or radiation-induced (3G) micronucleus (MN) frequency is not significantly different between both groups. However, spontaneous frequency of nucleoplasmic bridges (NPBs) and radiation-induced nuclear buds (NBuds) were significantly higher in patients vs. controls (P < 0.0001; P = 0.0005, respectively). In addition, apoptosis and nuclear division index (NDI) was significantly higher in patients compared to controls after radiation treatment (P = 0.006; P = 0.0002, respectively). Furthermore carriage of at least one G allele of hOGG1 (C1245G) polymorphism was associated with a significantly increased odds ratio (OR) to have a base-line MN, NPB, or NBud frequency greater than medium level compared to homozygotes for C allele (OR:1.94, 1.77, 2.36, respectively, P = 0.02; 0.04, and 0.004, respectively). Our results support the hypotheses that those who develop PC have significantly higher level of genomic instability which is further increased in those who carry G allele of the hOGG1 (C1245G) polymorphism. Environ. Mol. Mutagen. 59:813-821, 2018. © 2018 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
| | - Eric Yeoh
- Department of Radiation Oncology, Royal Adelaide Hospital (RAH) and Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia
| | | | - Julie Butters
- South Australian Health and Medical Research Institute, North Terrace, Adelaide, South Australia, Australia
| | - Addolorata Di Matteo
- Department of Radiation Oncology, Royal Adelaide Hospital (RAH) and Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia
| | - Ian Olver
- Sansom Institute for Health Research, University of South Australia, Adelaide, South Australia, Australia
| | - Michael Fenech
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia
| |
Collapse
|
10
|
Gotoh N, Saitoh T, Takahashi N, Kasamatsu T, Minato Y, Lobna A, Oda T, Hoshino T, Sakura T, Shimizu H, Takizawa M, Handa H, Yokohama A, Tsukamoto N, Murakami H. Association between OGG1 S326C CC genotype and elevated relapse risk in acute myeloid leukemia. Int J Hematol 2018; 108:246-253. [PMID: 29737460 DOI: 10.1007/s12185-018-2464-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/24/2018] [Accepted: 04/25/2018] [Indexed: 11/28/2022]
Abstract
Recent studies have shown that tumors of relapsed acute myeloid leukemia (AML) present additional genetic mutations compared to the primary tumors. The base excision repair (BER) pathway corrects oxidatively damaged mutagenic bases and plays an important role in maintaining genetic stability. The purpose of the present study was to investigate the relationship between BER functional polymorphisms and AML relapse. We focused on five major polymorphisms: OGG1 S326C, MUTYH Q324H, APE1 D148E, XRCC1 R194W, and XRCC1 R399Q. Ninety-four adults with AML who achieved first complete remission were recruited. Genotyping was performed with the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. The OGG1 S326C CC genotype (associated with lower OGG1 activity) was observed more frequently in patients with AML relapse [28.9 vs. 8.9%, odds ratio (OR) = 4.10, 95% confidence interval (CI) = 1.35-12.70, P = 0.01]. Patients with the CC genotype exhibited shorter relapse-free survival (RFS). Moreover, the TCGA database suggested that low OGG1 expression in AML cells is associated with a higher frequency of mutations. The present findings suggest that the OGG1 S326C polymorphism increased the probability of AML relapse and may be useful as a prognostic factor for AML relapse risk.
Collapse
Affiliation(s)
- Nanami Gotoh
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan
| | - Takayuki Saitoh
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan.
| | - Noriyuki Takahashi
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan
| | - Tetsuhiro Kasamatsu
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan
| | - Yusuke Minato
- Department of Virology and Preventive Medicine, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Alkebsi Lobna
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan
| | - Tsukasa Oda
- Laboratory of Molecular Genetics, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
| | - Takumi Hoshino
- Leukemia Research Center, Saiseikai Maebashi Hospital, Gunma, Japan
| | - Toru Sakura
- Leukemia Research Center, Saiseikai Maebashi Hospital, Gunma, Japan
| | | | - Makiko Takizawa
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Hiroshi Handa
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Akihiko Yokohama
- Division of Blood Transfusion Service, Gunma University Hospital, Gunma, Japan
| | | | - Hirokazu Murakami
- Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan
| |
Collapse
|
11
|
Cumulative meta-analysis and trial sequential analysis of correlation between hOGG1 Ser326Cys polymorphism and the risk of head and neck squamous cell carcinoma. Oncotarget 2018; 9:13077-13087. [PMID: 29560133 PMCID: PMC5849197 DOI: 10.18632/oncotarget.24055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 08/28/2017] [Indexed: 11/25/2022] Open
Abstract
Background The human 8-oxoguanine glycosylase 1 (hOGG1) Ser326Cys polymorphism has been involved in the risk of head and neck squamous cell carcinoma (HNSCC), but the results of published studies on this topic still inconsistent. Results Finally 11 qualified publications with 13 independent case-control studies were yielded. Overall, we observed significant differences in CysCys vs. SerSer [odds ratio (OR) = 1.55, 95% confidence interval (95% CI) = 1.01–2.38] and CysCys vs. SerCys+SerSer (OR = 1.42, 95% CI = 1.005–1.99) genetic models. Sensitivity analyses showed the results were not robust, cumulative meta-analyses and trial sequential analysis indicated the results didn't not need more studies to identification. Subgroup analyses showed there was a significant association in Caucasian, laryngeal squamous cell carcinoma, studies agreement with Hardy-Weinberg equilibrium, and alcohol drinkers subgroups under the corresponding contrasts. In addition, the results of Egger’s test were contradictory. Materials and Methods All eligible studies were searched from the online databases including PubMed, Web of Science, China Knowledge Resource Integrated Database, and Wanfang databases up to February 10, 2017. After study selection and data extraction, the meta-analysis was performed using STATA 12.0 software and TSA software version 0.9 Beta. Conclusions Our meta-analysis results indicated that hOGG1 Ser326Cys polymorphism may be associated with increased risk of HNSCC, especially in Caucasians, alcohol drinkers and the patients with laryngeal squamous cell carcinoma.
Collapse
|
12
|
Kim J, Yum S, Kang C, Kang SJ. Gene-gene interactions in gastrointestinal cancer susceptibility. Oncotarget 2018; 7:67612-67625. [PMID: 27588484 PMCID: PMC5341900 DOI: 10.18632/oncotarget.11701] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 08/24/2016] [Indexed: 01/02/2023] Open
Abstract
Cancer arises from complex, multi-layer interactions between diverse genetic and environmental factors. Genetic studies have identified multiple loci associated with tumor susceptibility. However, little is known about how germline polymorphisms interact with one another and with somatic mutations within a tumor to mediate acquisition of cancer traits. Here, we survey recent studies showing gene-gene interactions, also known as epistases, affecting genetic susceptibility in colorectal, gastric and esophageal cancers. We also catalog epistasis types and cancer hallmarks with respect to the interacting genes. A total of 22 gene variation pairs displayed all levels of statistical epistasis, including synergistic, redundant, suppressive and co-suppressive interactions. Five genes primarily involved in base excision repair formed a linear topology in the interaction network, MUTYH-OGG1-XRCC1-PARP1-MMP2, and three genes in mTOR cell-proliferation pathway formed another linear network, PRKAG2-RPS6KB1-PIK3CA. Discrete pairwise epistasis was also found in nucleotide excision repair, detoxification, proliferation, TP53, TGF-β and other pathways. We propose that three modes of biological interaction underlie the molecular mechanisms for statistical epistasis. The direct binding, linear pathway and convergence modes can exhibit any level of statistical epistasis in susceptibility to gastrointestinal cancers, and this is likely true for other complex diseases as well. This review highlights the link between cancer hallmarks and susceptibility genes.
Collapse
Affiliation(s)
- Jineun Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Seoyun Yum
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Changwon Kang
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Suk-Jo Kang
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| |
Collapse
|
13
|
Nallanthighal S, Chan C, Murray TM, Mosier AP, Cady NC, Reliene R. Differential effects of silver nanoparticles on DNA damage and DNA repair gene expression in Ogg1-deficient and wild type mice. Nanotoxicology 2017; 11:996-1011. [PMID: 29046123 DOI: 10.1080/17435390.2017.1388863] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Due to extensive use in consumer goods, it is important to understand the genotoxicity of silver nanoparticles (AgNPs) and identify susceptible populations. 8-Oxoguanine DNA glycosylase 1 (OGG1) excises 8-oxo-7,8-dihydro-2-deoxyguanine (8-oxoG), a pro-mutagenic lesion induced by oxidative stress. To understand whether defects in OGG1 is a possible genetic factor increasing an individual's susceptibly to AgNPs, we determined DNA damage, genome rearrangements, and expression of DNA repair genes in Ogg1-deficient and wild type mice exposed orally to 4 mg/kg of citrate-coated AgNPs over a period of 7 d. DNA damage was examined at 3 and 7 d of exposure and 7 and 14 d post-exposure. AgNPs induced 8-oxoG, double strand breaks (DSBs), chromosomal damage, and DNA deletions in both genotypes. However, 8-oxoG was induced earlier in Ogg1-deficient mice and 8-oxoG levels were higher after 7-d treatment and persisted longer after exposure termination. AgNPs downregulated DNA glycosylases Ogg1, Neil1, and Neil2 in wild type mice, but upregulated Myh, Neil1, and Neil2 glycosylases in Ogg1-deficient mice. Neil1 and Neil2 can repair 8-oxoG. Thus, AgNP-mediated downregulation of DNA glycosylases in wild type mice may contribute to genotoxicity, while upregulation thereof in Ogg1-deficient mice could serve as an adaptive response to AgNP-induced DNA damage. However, our data show that Ogg1 is indispensable for the efficient repair of AgNP-induced damage. In summary, citrate-coated AgNPs are genotoxic in both genotypes and Ogg1 deficiency exacerbates the effect. These data suggest that humans with genetic polymorphisms and mutations in OGG1 may have increased susceptibility to AgNP-mediated DNA damage.
Collapse
Affiliation(s)
- Sameera Nallanthighal
- a Cancer Research Center , University at Albany, State University of New York , Rensselaer , NY , USA.,b Department of Biomedical Sciences , University at Albany, State University of New York , Albany , NY , USA
| | - Cadia Chan
- a Cancer Research Center , University at Albany, State University of New York , Rensselaer , NY , USA.,c Department of Biomedical Sciences , Queen's University , Kingston , ON , Canada
| | - Thomas M Murray
- d Colleges of Nanoscale Sciences and Engineering , SUNY Polytechnic Institute , Albany , NY , USA
| | - Aaron P Mosier
- d Colleges of Nanoscale Sciences and Engineering , SUNY Polytechnic Institute , Albany , NY , USA
| | - Nathaniel C Cady
- d Colleges of Nanoscale Sciences and Engineering , SUNY Polytechnic Institute , Albany , NY , USA
| | - Ramune Reliene
- a Cancer Research Center , University at Albany, State University of New York , Rensselaer , NY , USA.,e Department of Environmental Health Sciences , University at Albany, State University of New York , Albany , NY , USA
| |
Collapse
|
14
|
Common polymorphisms of the hOGG1, APE1 and XRCC1 genes correlate with the susceptibility and clinicopathological features of primary angle-closure glaucoma. Biosci Rep 2017; 37:BSR20160644. [PMID: 28396513 PMCID: PMC5477560 DOI: 10.1042/bsr20160644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 03/22/2017] [Accepted: 04/07/2017] [Indexed: 12/31/2022] Open
Abstract
The present case study aims to elucidate the correlation between the human 8-hydroxyguanineglycosylase (hOGG1), APE1 and X-ray repair cross-complementing gene 1 (XRCC1) gene polymorphisms to the susceptibility and clinicopathological features of primary angle closure glaucoma (PACG) in a Chinese Han population. Blood samples were obtained from 258 PACG patients (case group) and 272 healthy volunteers (control group). PCR with sequence-specific primer (PCR-SSP) was used to determine the allele frequencies and genotype distributions of the hOGG1, APE1 and XRCC1 genes. The risk factors of PACG were determined using logistic regression analysis. The results indicated that hOGG1 Ser326Cys, APE1 Asp148Glu and XRCC1 Arg399Gln polymorphisms were correlated with the risk of PACG. Furthermore, there were thicker corneas, higher intraocular pressure (IOP) and a shorter axial length in patients carrying the mutant genotypes of hOGG1 Ser326Cys (Ser/Cys + Cys/Cys), APE1 Asp148Glu (Asp/Glu + Glu/Glu) and XRCC1 Arg399Gln (Arg/Gln + Glu/Glu) than those carrying the corresponding wild-type genotypes. According to the logistic regression analysis, Asp148Glu and Arg399Gln polymorphisms, a short axial length and high IOP are major risk factors for PACG. These findings reveal that hOGG1 Ser326Cys, APE1 Asp148Glu and XRCC1 Arg399Gln polymorphisms are correlated with the risk and clinicopathological features of PACG in a Chinese Han population.
Collapse
|
15
|
Boiteux S, Coste F, Castaing B. Repair of 8-oxo-7,8-dihydroguanine in prokaryotic and eukaryotic cells: Properties and biological roles of the Fpg and OGG1 DNA N-glycosylases. Free Radic Biol Med 2017; 107:179-201. [PMID: 27903453 DOI: 10.1016/j.freeradbiomed.2016.11.042] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 11/22/2016] [Accepted: 11/25/2016] [Indexed: 01/23/2023]
Abstract
Oxidatively damaged DNA results from the attack of sugar and base moieties by reactive oxygen species (ROS), which are formed as byproducts of normal cell metabolism and during exposure to endogenous or exogenous chemical or physical agents. Guanine, having the lowest redox potential, is the DNA base the most susceptible to oxidation, yielding products such as 8-oxo-7,8-dihydroguanine (8-oxoG) and 2-6-diamino-4-hydroxy-5-formamidopyrimidine (FapyG). In DNA, 8-oxoG was shown to be mutagenic yielding GC to TA transversions upon incorporation of dAMP opposite this lesion by replicative DNA polymerases. In prokaryotic and eukaryotic cells, 8-oxoG is primarily repaired by the base excision repair pathway (BER) initiated by a DNA N-glycosylase, Fpg and OGG1, respectively. In Escherichia coli, Fpg cooperates with MutY and MutT to prevent 8-oxoG-induced mutations, the "GO-repair system". In Saccharomyces cerevisiae, OGG1 cooperates with nucleotide excision repair (NER), mismatch repair (MMR), post-replication repair (PRR) and DNA polymerase η to prevent mutagenesis. Human and mouse cells mobilize all these pathways using OGG1, MUTYH (MutY-homolog also known as MYH), MTH1 (MutT-homolog also known as NUDT1), NER, MMR, NEILs and DNA polymerases η and λ, to prevent 8-oxoG-induced mutations. In fact, mice deficient in both OGG1 and MUTYH develop cancer in different organs at adult age, which points to the critical impact of 8-oxoG repair on genetic stability in mammals. In this review, we will focus on Fpg and OGG1 proteins, their biochemical and structural properties as well as their biological roles. Other DNA N-glycosylases able to release 8-oxoG from damaged DNA in various organisms will be discussed. Finally, we will report on the role of OGG1 in human disease and the possible use of 8-oxoG DNA N-glycosylases as therapeutic targets.
Collapse
Affiliation(s)
- Serge Boiteux
- Centre de Biophysique Moléculaire, CNRS, UPR4301, rue Charles Sadron, 45072 Orléans, France.
| | - Franck Coste
- Centre de Biophysique Moléculaire, CNRS, UPR4301, rue Charles Sadron, 45072 Orléans, France
| | - Bertrand Castaing
- Centre de Biophysique Moléculaire, CNRS, UPR4301, rue Charles Sadron, 45072 Orléans, France.
| |
Collapse
|
16
|
Alanazi M, Pathan AAK, Shaik JP, Alhadheq A, Khan Z, Khan W, Al Naeem A, Parine NR. The hOGG1 Ser326Cys Gene Polymorphism and Breast Cancer Risk in Saudi Population. Pathol Oncol Res 2016; 23:525-535. [PMID: 27822728 DOI: 10.1007/s12253-016-0146-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 10/27/2016] [Indexed: 01/20/2023]
Abstract
The purpose of this study was to test the association between human 8-oxoguanine glycosylase 1 (hOGG1) gene polymorphisms and susceptibility to breast cancer in Saudi population. We have also aimed to screen the hOGG1 Ser326Cys polymorphism effect on structural and functional properties of the hOGG1 protein using in silico tools. We have analyzed four SNPs of hOGG1 gene among Saudi breast cancer patients along with healthy controls. Genotypes were screened using TaqMan SNP genotype analysis method. Experimental data was analyzed using Chi-square, t test and logistic regression analysis using SPSS software (v.16). In silco analysis was conducted using discovery studio and HOPE program. Genotypic analysis showed that hOGG1 rs1052133 (Ser326Cys) is significantly associated with breast cancer samples in Saudi population, however rs293795 (T >C), rs2072668 (C>G) and rs2075747 (G >A) did not show any association with breast cancer. The hOGG1 SNP rs1052133 (Ser326Cys) minor allele T showed a significant association with breast cancer samples (OR = 1.78, χ2 = 7.86, p = 0.02024). In silico structural analysis was carried out to compare the wild type (Ser326) and mutant (Cys326) protein structures. The structural prediction studies revealed that Ser326Cys variant may destabilize the protein structure and it may disturb the hOGG1 function. Taken together this is the first In silico study report to confirm Ser326Cys variant effect on structural and functional properties of hOGG1 gene and Ser326Cys role in breast cancer susceptibility in Saudi population.
Collapse
Affiliation(s)
- Mohammed Alanazi
- Genome Research Chair, Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Kingdom of Saudi Arabia
| | - Akbar Ali Khan Pathan
- Genome Research Chair, Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Kingdom of Saudi Arabia.,Integrated Gulf Biosystems, Riyadh, Kingdom of Saudi Arabia
| | - Jilani P Shaik
- Genome Research Chair, Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Kingdom of Saudi Arabia
| | - Abdullah Alhadheq
- Genome Research Chair, Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Kingdom of Saudi Arabia
| | - Zahid Khan
- Genome Research Chair, Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Kingdom of Saudi Arabia
| | - Wajahatullah Khan
- Basic Sciences Department, College of Science and Health Professions, King Saud bin Abdulaziz University for Health Sciences, P.O Box 3660, Riyadh, 11426, Saudi Arabia
| | - Abdulrahman Al Naeem
- Department of Women's Imaging, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Narasimha Reddy Parine
- Genome Research Chair, Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Kingdom of Saudi Arabia.
| |
Collapse
|
17
|
Couto PG, Bastos-Rodrigues L, Carneiro JG, Guieiro F, Bicalho MA, Leidenz FB, Bicalho AJ, Friedman E, De Marco L. DNA Base-Excision Repair Genes OGG1 and NTH1 in Brazilian Lung Cancer Patients. Mol Diagn Ther 2016; 19:389-95. [PMID: 26400813 DOI: 10.1007/s40291-015-0164-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Lung cancer is the leading global cause of cancer-related mortality and is associated with poor prognosis. To improve survival rates of lung cancer patients, better understanding of tumorigenic mechanisms is necessary, which may lead to development of new therapeutic strategies. The hOGG1 and NTH1 genes act in the DNA BER repair pathway and their involvement in lung cancer pathogenesis has been analyzed in several populations. METHODS We analyzed targeted regions of the hOGG1 and NTH1 genes in 96 Brazilian patients with non-small-cell lung cancer (NSCLC) and 89 cancer-free, ethnically matched controls. RESULTS The NTH1 c.98G>T polymorphism rs2302172 (p = 0.02 and p = 0.02 for allele and genotype frequency between cases and controls, respectively) and the 140-17C> T variant (rs2233518) (p = 0.02 and p = 0.02 for allele and genotype frequency between cases and controls, respectively) were detected in four lung cancer cases (4 %) while the NTH1 Q131K (C391A) polymorphism was found in seven lung cancer cases (7 %) (p = 0.001 and p = 0.008, for allele and genotype frequency between cases and controls, respectively). None of these sequence variants were detected in controls. The Ser326Cys (C1245G, rs1052133) polymorphism in the OGG1 gene was detected in 42 % of analyzed NSCLC patients and in 34 % of the controls (p = 0.11 and p = 0.25 for allele and genotype frequency between cases and controls, respectively). CONCLUSIONS Our study provides preliminary evidence that polymorphisms in OGG1 do not contribute to development of NSCLC in Brazilian patients and that NTH1 polymorphisms may be associated with NSCLC pathogenesis.
Collapse
Affiliation(s)
- Patricia G Couto
- Department of Surgery, Universidade Federal de Minas Gerais, Av. Alfredo Balena 190, Room 114, Belo Horizonte, 30130-100, Brazil
| | - Luciana Bastos-Rodrigues
- Universidade Federal de Juiz de Fora, Campus Governador Valadares, Governador Valadares, Minas Gerais, Brazil
| | - Juliana G Carneiro
- Faculty of Medical Science, Centro de Ensino Superior e Desenvolvimento, Campina Grande, Brazil
| | - Fernanda Guieiro
- Department of Surgery, Universidade Federal de Minas Gerais, Av. Alfredo Balena 190, Room 114, Belo Horizonte, 30130-100, Brazil
| | | | - Franciele B Leidenz
- Department of Surgery, Universidade Federal de Minas Gerais, Av. Alfredo Balena 190, Room 114, Belo Horizonte, 30130-100, Brazil
| | - Ana J Bicalho
- Department of Surgery, Universidade Federal de Minas Gerais, Av. Alfredo Balena 190, Room 114, Belo Horizonte, 30130-100, Brazil
| | - Eitan Friedman
- The Susanne Levy Gertner Oncogenetics Unit, Chaim Sheba Medical Center, Tel-Hashomer, Israel
| | - Luiz De Marco
- Department of Surgery, Universidade Federal de Minas Gerais, Av. Alfredo Balena 190, Room 114, Belo Horizonte, 30130-100, Brazil.
| |
Collapse
|
18
|
Polymorphisms in metabolism and repair genes affects DNA damage caused by open-cast coal mining exposure. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2016; 808:38-51. [DOI: 10.1016/j.mrgentox.2016.08.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 07/31/2016] [Accepted: 08/09/2016] [Indexed: 02/05/2023]
|
19
|
Tong Z, Shen H, Yang D, Zhang F, Bai Y, Li Q, Shi J, Zhang H, Zhu B. Genetic Variations in the Promoter of the APE1 Gene Are Associated with DMF-Induced Abnormal Liver Function: A Case-Control Study in a Chinese Population. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13080752. [PMID: 27463724 PMCID: PMC4997438 DOI: 10.3390/ijerph13080752] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 06/29/2016] [Accepted: 07/20/2016] [Indexed: 12/13/2022]
Abstract
Acute or long-term exposure to N,N-dimethylformamide (DMF) can induce abnormal liver function. It is well known that DMF is mainly metabolized in the liver and thereby produces reactive oxygen species (ROS). The base excision repair (BER) pathway is regarded as a very important pathway involved in repairing ROS-induced DNA damage. Several studies have explored the associations between GSTM1, GSTT1, CYP2E1 polymorphisms and DMF-induced abnormal liver function; however, little is known about how common hOGG1, XRCC1 and APE1 polymorphisms and DMF induce abnormal liver function. The purpose of this study was to investigate whether the polymorphisms in the hOGG1 (rs159153 and rs2072668), XRCC1 (rs25487, rs25489, and rs1799782), APE1 (rs1130409 and 1760944) genes in the human BER pathway were associated with the susceptibility to DMF-induced abnormal liver function in a Chinese population. These polymorphisms were genotyped in 123 workers with DMF-induced abnormal liver function and 123 workers with normal liver function. We found that workers with the APE1 rs1760944 TG/GG genotypes had a reduced risk of abnormal liver function, which was more pronounced in the subgroups that were exposed to DMF for <10 years, exposed to ≥10 mg/m3 DMF, never smoked and never drank. In summary, our study supported the hypothesis that the APE1 rs1760944 T > G polymorphism may be associated with DMF-induced abnormal liver function in the Chinese Han population.
Collapse
Affiliation(s)
- Zhimin Tong
- Kunshan Municipal Center for Disease Prevention and Control, Kunshan 215301, China.
| | - Huanxi Shen
- Kunshan Municipal Center for Disease Prevention and Control, Kunshan 215301, China.
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing 211166, China.
| | - Dandan Yang
- Department of Integrated Management & Emergency Preparedness and Response, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China.
| | - Feng Zhang
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, No.172 Jiangsu Road, Nanjing 210009, China.
| | - Ying Bai
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, No.172 Jiangsu Road, Nanjing 210009, China.
| | - Qian Li
- The First People's Hospital of Kunshan, Kunshan 215300, China.
| | - Jian Shi
- Kunshan Municipal Center for Disease Prevention and Control, Kunshan 215301, China.
| | - Hengdong Zhang
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, No.172 Jiangsu Road, Nanjing 210009, China.
| | - Baoli Zhu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing 211166, China.
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, No.172 Jiangsu Road, Nanjing 210009, China.
| |
Collapse
|
20
|
Association of XPD (Lys751Gln) and XRCC1 (Arg280His) gene polymorphisms in myelodysplastic syndrome. Ann Hematol 2016; 95:79-85. [PMID: 26482462 DOI: 10.1007/s00277-015-2528-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 10/07/2015] [Indexed: 12/20/2022]
Abstract
Myelodysplastic syndromes (MDSs) are heterogeneous hematopoietic disease characterized by ineffective haematopoiesis that frequently transforms into acute leukaemia. Alterations in many individual biologic pathways have been reported in MDS pathophysiology. Disease progression along the MDS, acute myeloid leukemia (AML) continuum is believed to be a consequence of stepwise accumulation of DNA mutations which infers a defect in DNA repair. The present study investigated the association between DNA repair genes (XRCC1, XRCC3, OGG1, XPD and RAD51) and the risk of developing MDS. The study was carried out in 92 primary MDS patients. The genotyping study was carried out by PCR-RFLP technique. We have studied seven single-nucleotide polymorphisms (SNPs) of five DNA repair genes (XRCC1 (Arg194Trp, Arg280His, Arg399Gln), XRCC3, XPD, RAD51 and OGG1). Significantly, a high frequency of DNA repair gene XRCC1 (Arg280His) (p=0.05) and XPD (Lys751Gln) (p=0.01) polymorphism was observed in MDS patients compared to controls. The distribution of polymorphisms in MDS subgroups showed a significant association of XRCC1 with RAEB I compared to other subgroup. Though a high frequency of XRCC1 gene polymorphism was observed in farmers and tobacco chewers, it was not statistically significant. Our study suggests that XRCC1 (Arg280His) and XPD polymorphisms are associated with risk of MDS and XRCC1 polymorphism strongly associated with advanced MDS subgroup. Hence, these polymorphisms can be used as a prognostic marker in MDS.
Collapse
|
21
|
Borghini A, Faita F, Mercuri A, Minichilli F, Bustaffa E, Bianchi F, Andreassi MG. Arsenic exposure, genetic susceptibility and leukocyte telomere length in an Italian young adult population. Mutagenesis 2016; 31:539-46. [PMID: 27084675 DOI: 10.1093/mutage/gew017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Arsenic-induced health effects may be associated with critically shortened telomeres. However, few data are available on the effects of arsenic exposure on telomere length. The aim of this study was to investigate the effects of chronic arsenic exposure on leukocyte telomere length (LTL) as well as the contribution of common polymorphisms in genes implicated in arsenic metabolism (GSTT1 and GSTM1) and DNA repair (hOGG1 and XRCC1). A group of 241 healthy subjects was enrolled from four areas of Italy known to be affected by natural or anthropogenic arsenic pollution. Urine samples were tested for inorganic As (iAs), monomethylarsinic (MMA) and dimethylarsinic acid (DMA). LTL was evaluated by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Genotyping was carried out by PCR-RFLP on leukocyte DNA. In multiple linear regression analysis, LTL was significantly and inversely correlated with age (β = -0.231, P = 0.006) and showed a certain trend toward significance with iAs urinary concentration (log10 iAs, β = -0.106, P = 0.08). The genotype distribution showed significant associations between GSTT1 and the As concentration (log10 iAs, P = 0.01) and metabolite patterns (log10 DMA, P = 0.05) in the urine. However, GST genes did not interact with arsenic exposure in the modulation of LTL. Conversely, the combined presence of a higher level of iAs + MMA + DMA ≥ 19.3 μg/l (F = 6.0, P interaction = 0.01), Asi ≥ 3.86 (F = 3.9, P interaction = 0.04) μg/l, iAs + MMA + DMA ≥ 15 μg/l (F = 4.2, P interaction = 0.04) and hOGG1 Cys allele was associated with a significantly lower LTL. An interaction between XRCC1 Arg399Gln and arsenic exposure was also observed (all P interaction = 0.04). These findings suggest that telomere shortening may represent a mechanism that contributes to arsenic-related disease. The interaction of hOGG1 and XRCC1 DNA repair polymorphisms and exposure enhances telomeric DNA damage. Future studies are warranted to understand better the epidemiologic impact of arsenic on telomere function as well as to identify the subgroups of exposed subjects who need better health surveillance.
Collapse
Affiliation(s)
- Andrea Borghini
- Institute of Clinical Physiology, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - Francesca Faita
- Institute of Clinical Physiology, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - Antonella Mercuri
- Institute of Clinical Physiology, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - Fabrizio Minichilli
- Institute of Clinical Physiology, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - Elisa Bustaffa
- Institute of Clinical Physiology, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - Fabrizio Bianchi
- Institute of Clinical Physiology, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - Maria Grazia Andreassi
- Institute of Clinical Physiology, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy
| |
Collapse
|
22
|
Xia Y, Wang W, Wang L, Shen S, Cao Y, Yi L, Gao Q, Wang Y. hOGG1 gene polymorphisms and susceptibility to polycystic ovary syndrome. Biomed Rep 2016; 4:421-426. [PMID: 27073625 DOI: 10.3892/br.2016.600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 02/04/2016] [Indexed: 01/04/2023] Open
Abstract
Oxidative stress generates 8-hydroxy-2'-deoxyguanine (8-oxodG), which can structurally modify DNA. Glycosylase hOGG1 can remove the mutagenic lesion 8-oxodG from DNA. The aim of the present study was to determine whether polymorphisms in hOGG1 were associated with the risk of polycystic ovary syndrome (PCOS). One common single-nucleotide polymorphism (Ser326Cys) in exon 7 and four rare polymorphisms (c.-18G>T, c.-23A>G, c.-45G>A and c. -53G>C) were screened in the 5' untranslated region of the hOGG1 gene. No such distributional differences were observed between the PCOS patients and controls either in the genotype frequency or in the allele frequency. There were no differences in the clinical variables among the different genotypes in all the variants, except that the follicle-stimulating hormone level was elevated in the GC genotype of c. -53G>C in PCOS patients (P=0.002). These results suggest that the polymorphisms in hOGG1 may not be an independent risk factor for PCOS.
Collapse
Affiliation(s)
- Yanjie Xia
- Center of Prenatal Diagnosis, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China; Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Wenqing Wang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Lei Wang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Shanmei Shen
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Yunxia Cao
- Department of Obstetrics and Gynecology, Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Long Yi
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Qian Gao
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Yong Wang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| |
Collapse
|
23
|
Genetic variation in APE1 gene promoter is associated with noise-induced hearing loss in a Chinese population. Int Arch Occup Environ Health 2015; 89:621-8. [DOI: 10.1007/s00420-015-1100-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 10/18/2015] [Indexed: 10/22/2022]
|
24
|
Synowiec E, Wójcik KA, Czubatka A, Polakowski P, Izdebska J, Szaflik J, Błasiak J, Szaflik JP. Lack of association between polymorphisms of the DNA base excision repair genes MUTYH and hOGG1 and keratoconus in a Polish subpopulation. Arch Med Sci 2015; 11:1101-10. [PMID: 26528356 PMCID: PMC4624754 DOI: 10.5114/aoms.2015.54867] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 09/28/2013] [Accepted: 10/18/2013] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Keratoconus (KC) is a non-inflammatory thinning of the cornea and a leading indication for corneal transplantation. Oxidative stress plays a role in the pathogenesis of this disease. The products of the hOGG1 and MUTYH genes play an important role in the repair of oxidatively modified DNA in the base excision repair pathway. We hypothesized that variability in these genes may change susceptibility to oxidative stress and predispose individuals to the development of KC. We investigated the possible association between the c.977C>G polymorphism of the hOGG1 gene (rs1052133) and the c.972G>C polymorphism of the MUTYH gene (rs3219489) and KC occurrence as well as the modulation of this association by some KC risk factors. MATERIAL AND METHODS A total of 205 patients with KC and 220 controls were included in this study. The polymorphisms were genotyped with polymerase chain reaction (PCR) restriction fragment length polymorphism and PCR-confronting two-pair primer techniques. Differences in genotype and allele frequency distributions were evaluated using the χ(2) test, and KC risk was estimated with an unconditional multiple logistic regression with and without adjustment for co-occurrence of visual impairment, allergies, sex and family history for KC. RESULTS We did not find any association between the genotypes and combined genotypes of the c.977C>G polymorphism of the hOGG1 gene and the c.972G>C polymorphism of the MUTYH gene and the occurrence of KC. CONCLUSIONS Our findings suggest that the c.977C>G-hOGG1 polymorphism and the c.972G>C-MUTYH polymorphism may not be linked with KC occurrence in this Polish subpopulation.
Collapse
Affiliation(s)
- Ewelina Synowiec
- Department of Molecular Genetics, University of Lodz, Lodz, Poland
| | | | - Anna Czubatka
- Department of Molecular Genetics, University of Lodz, Lodz, Poland
| | - Piotr Polakowski
- Department of Ophthalmology, Medical University of Warsaw, SPKSO Ophthalmic University Hospital, Warsaw, Poland
| | - Justyna Izdebska
- Department of Ophthalmology, Medical University of Warsaw, SPKSO Ophthalmic University Hospital, Warsaw, Poland
| | - Jerzy Szaflik
- Department of Ophthalmology, Medical University of Warsaw, SPKSO Ophthalmic University Hospital, Warsaw, Poland
| | - Janusz Błasiak
- Department of Molecular Genetics, University of Lodz, Lodz, Poland
| | - Jacek P. Szaflik
- Department of Ophthalmology, Medical University of Warsaw, SPKSO Ophthalmic University Hospital, Warsaw, Poland
| |
Collapse
|
25
|
Huang CY, Pu YS, Shiue HS, Chen WJ, Lin YC, Hsueh YM. Polymorphisms of human 8-oxoguanine DNA glycosylase 1 and 8-hydroxydeoxyguanosine increase susceptibility to arsenic methylation capacity-related urothelial carcinoma. Arch Toxicol 2015; 90:1917-27. [PMID: 26359225 DOI: 10.1007/s00204-015-1590-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 08/31/2015] [Indexed: 01/15/2023]
Abstract
Arsenic causes oxidative stress in cultured animal and human cells, and it is a well-documented human carcinogen. We conducted a hospital-based case-control study including 167 cases of urothelial carcinoma (UC) and 334 age- and gender-matched healthy controls to evaluate the relationships between urinary arsenic profiles, urinary 8-hydroxydeoxyguanosine (8-OHdG) levels, and human 8-oxoguanine DNA glycosylase (hOGG1) genotypes and UC. The urinary arsenic species were analyzed by high-performance liquid chromatography and hydride generator-atomic absorption spectrometry. Genotyping for hOGG1 (Ser326Cys) and hOGG1 (-15C>G) was performed using the Sequenom MassARRAY platform with iPLEX Gold chemistry. Urinary 8-OHdG was measured with high-sensitivity enzyme-linked immunosorbent assay kits. The results indicated that the hOGG1 326 Cys/Cys genotype and the hOGG1 -15C>G G/G genotype were associated with an increased risk of UC (OR [95 % CI] 1.57 [1.04-2.35] and 1.57 [1.04-2.35], respectively). Participants with high urinary total arsenic, regardless of the haplotype of hOGG1 Ser326Cys and the -15C>G polymorphism, had significantly higher urinary 8-OHdG compared to participants with low urinary total arsenic. This is the first study to investigate the joint effects of high urinary total arsenic or inefficient arsenic methylation capacity indices, and the high-risk G-G haplotype of hOGG1 on the risk of UC. The findings are especially meaningful for participants with risk factors such as high urinary total arsenic, inefficient arsenic methylation indices, high urinary 8-OHdG, and the high-risk G-G haplotype of hOGG1 which are all associated with an increased UC risk.
Collapse
Affiliation(s)
- Chao-Yuan Huang
- Department of Urology, National Taiwan University Hospital, College of Medicine National Taiwan University, Taipei, Taiwan
| | - Yeong-Shiau Pu
- Department of Urology, National Taiwan University Hospital, College of Medicine National Taiwan University, Taipei, Taiwan
| | - Horng-Sheng Shiue
- Department of Chinese Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Wei-Jen Chen
- School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Ying-Chin Lin
- Department of Family Medicine, Shung Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Health Examination, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Division of Family Medicine, School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Mei Hsueh
- School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan. .,Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, No. 250 Wu-Hsing Street, Taipei 110, Taiwan.
| |
Collapse
|
26
|
Ali K, Mahjabeen I, Sabir M, Mehmood H, Kayani MA. OGG1 Mutations and Risk of Female Breast Cancer: Meta-Analysis and Experimental Data. DISEASE MARKERS 2015; 2015:690878. [PMID: 26089588 PMCID: PMC4452349 DOI: 10.1155/2015/690878] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 04/09/2015] [Indexed: 01/10/2023]
Abstract
In first part of this study association between OGG1 polymorphisms and breast cancer susceptibility was explored by meta-analysis. Second part of the study involved 925 subjects, used for mutational analysis of OGG1 gene using PCR-SSCP and sequencing. Fifteen mutations were observed, which included five intronic mutations, four splice site mutations, two 3'UTR mutations, three missense mutations, and a nonsense mutation. Significantly (p < 0.001) increased (~29 fold) breast cancer risk was associated with a splice site variant g.9800972T>G and 3'UTR variant g.9798848G>A. Among intronic mutations, highest (~15 fold) increase in breast cancer risk was associated with g.9793680G>A (p < 0.009). Similarly ~14-fold increased risk was associated with Val159Gly (p < 0.01), ~17-fold with Gly221Arg (p < 0.005), and ~18-fold with Ser326Cys (p < 0.004) in breast cancer patients compared with controls, whereas analysis of nonsense mutation showed that ~13-fold (p < 0.01) increased breast cancer risk was associated with Trp375STOP in patients compared to controls. In conclusion, a significant association was observed between OGG1 germ line mutations and breast cancer risk. These findings provide evidence that OGG1 may prove to be a good candidate of better diagnosis, treatment, and prevention of breast cancer.
Collapse
Affiliation(s)
- Kashif Ali
- Cancer Genetics Laboratory, Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad 44000, Pakistan
| | - Ishrat Mahjabeen
- Cancer Genetics Laboratory, Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad 44000, Pakistan
| | - Maimoona Sabir
- Cancer Genetics Laboratory, Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad 44000, Pakistan
| | - Humera Mehmood
- Nuclear Medicine Oncology & Radiotherapy Institute (NORI), Islamabad 44000, Pakistan
| | - Mahmood Akhtar Kayani
- Cancer Genetics Laboratory, Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad 44000, Pakistan
| |
Collapse
|
27
|
Pezzolo E, Modena Y, Corso B, Giusti P, Gusella M. Germ line polymorphisms as predictive markers for pre-surgical radiochemotherapy in locally advanced rectal cancer: a 5-year literature update and critical review. Eur J Clin Pharmacol 2015; 71:529-39. [PMID: 25740678 DOI: 10.1007/s00228-015-1824-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 02/11/2015] [Indexed: 12/19/2022]
Abstract
PURPOSE Locally advanced rectal cancer is currently treated with pre-surgical radiotherapy and chemotherapy. Approximately one-half of patients obtain a relevant shrinkage/disappearance of tumour, with major clinical advantages. The remaining patients, in contrast, show no benefit and possibly need alternative treatment. To provide the best therapeutic option for each individual patient, predictive markers have been widely researched. This review was undertaken to evaluate recent progress made in this field. METHODS A systematic literature search was performed using PubMed and Scopus database, focused on germ line gene polymorphisms as biomarkers and response and toxicity as outcomes. Because an exhaustive previous review was available describing findings up to 2008, we restricted our analysis to the last 5 years. RESULTS Ten original research articles were found, reporting promising results for some candidate genes in drug metabolism (TYMS, MTHFR), DNA repair (XRCC1, OGG1, CCND1) and inflammation (SOD2, TGFB1)/immunity (IL13) pathways, but with no firm conclusion. All the studies had small sample size and were defined as exploratory. This review highlights pivotal molecular, clinical, genetic and statistical issues in the investigation of genetic polymorphisms as outcome predictors for rectal cancer and offers suggestions for future development. CONCLUSIONS What emerges is a clear need for new proposals, especially in view of the increasing evidence for tumour-host and gene-gene interactions during anticancer treatment, together with stronger adherence to proper methodological requirements.
Collapse
Affiliation(s)
- Elisa Pezzolo
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Largo Meneghetti, 2, 35131, Padua, Italy,
| | | | | | | | | |
Collapse
|
28
|
Goričar K, Erčulj N, Faganel Kotnik B, Debeljak M, Hovnik T, Jazbec J, Dolžan V. The association of folate pathway and DNA repair polymorphisms with susceptibility to childhood acute lymphoblastic leukemia. Gene 2015; 562:203-9. [PMID: 25746326 DOI: 10.1016/j.gene.2015.02.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Revised: 01/10/2015] [Accepted: 02/26/2015] [Indexed: 01/21/2023]
Abstract
Genetic factors may play an important role in susceptibility to childhood acute lymphoblastic leukemia (ALL). The aim of our study was to evaluate the associations of genetic polymorphisms in folate pathway and DNA repair genes with susceptibility to ALL. In total, 121 children with ALL and 184 unrelated healthy controls of Slovenian origin were genotyped for 14 polymorphisms in seven genes of folate pathway, base excision repair and homologous recombination repair (TYMS, MTHFR, OGG1, XRCC1, NBN, RAD51, and XRCC3). In addition, the exon 6 of NBN was screened for the presence of mutations using denaturing high performance liquid chromatography. Twelve polymorphisms were in Hardy-Weinberg equilibrium in controls and their genotype frequencies were in agreement with those reported in other Caucasian populations. Among the investigated polymorphisms and mutations, NBN Glu185Gln significantly decreased susceptibility to B-cell ALL (p=0.037), while TYMS 3R allele decreased susceptibility to T-cell ALL (p=0.011). Moreover, significantly decreased susceptibility to ALL was observed for MTHFR TA (p=0.030) and RAD51 GTT haplotypes (p=0.016). Susceptibility to ALL increased with the increasing number of risk alleles (ptrend=0.007). We also observed significant influence of hOGG-RAD51 and NBN-RAD51 interactions on susceptibility to ALL. Our results suggest that combination of several polymorphisms in DNA repair and folate pathways may significantly affect susceptibility to childhood ALL.
Collapse
Affiliation(s)
- Katja Goričar
- University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Pharmacogenetics Laboratory, Vrazov trg 2, 1000 Ljubljana, Slovenia.
| | - Nina Erčulj
- University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Pharmacogenetics Laboratory, Vrazov trg 2, 1000 Ljubljana, Slovenia.
| | - Barbara Faganel Kotnik
- University Medical Center, University Children's Hospital, Oncology and Haematology Unit, Bohoričeva 20, Ljubljana, Slovenia.
| | - Maruša Debeljak
- University Medical Center, University Children's Hospital, Center for Medical Genetics, Vrazov trg 1, Ljubljana, Slovenia.
| | - Tinka Hovnik
- University Medical Center, University Children's Hospital, Center for Medical Genetics, Vrazov trg 1, Ljubljana, Slovenia.
| | - Janez Jazbec
- University Medical Center, University Children's Hospital, Oncology and Haematology Unit, Bohoričeva 20, Ljubljana, Slovenia.
| | - Vita Dolžan
- University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Pharmacogenetics Laboratory, Vrazov trg 2, 1000 Ljubljana, Slovenia.
| |
Collapse
|
29
|
Banu SK, Stanley JA, Sivakumar KK, Arosh JA, Barhoumi R, Burghardt RC. Identifying a novel role for X-prolyl aminopeptidase (Xpnpep) 2 in CrVI-induced adverse effects on germ cell nest breakdown and follicle development in rats. Biol Reprod 2015; 92:67. [PMID: 25568306 DOI: 10.1095/biolreprod.114.125708] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Environmental exposure to endocrine-disrupting chemicals (EDCs) is one cause of premature ovarian failure (POF). Hexavalent chromium (CrVI) is a heavy metal EDC widely used in more than 50 industries, including chrome plating, welding, wood processing, and tanneries. Recent data from U.S. Environmental Protection Agency indicate increased levels of Cr in drinking water from several American cities, which potentially predispose residents to various health problems. Recently, we demonstrated that gestational exposure to CrVI caused POF in F1 offspring. The current study was performed to identify the molecular mechanism behind CrVI-induced POF. Pregnant rats were treated with 25 ppm of potassium dichromate from Gestational Day (GD) 9.5 to GD 14.5 through drinking water, and the fetuses were exposed to CrVI through transplacental transfer. Ovaries were removed from the fetuses or pups on Embryonic Day (ED) 15.5, ED 17.5, Postnatal Day (PND) 1, PND 4, or PND 25, and various analyses were performed. Results showed that gestational exposure to CrVI: 1) increased germ cell/oocyte apoptosis and advanced germ cell nest (GCN) breakdown; 2) increased X-prolyl aminopeptidase (Xpnpep) 2, a POF marker in humans, during GCN breakdown; 3) decreased Xpnpep2 during postnatal follicle development; and 4) increased colocalization of Xpnpep2 with Col3 and Col4. We also found that Xpnpep2 inversely regulated the expression of Col1, Col3, and Col4 in all the developmental stages studied. Thus, CrVI advanced GCN breakdown and increased follicle atresia in F1 female progeny by targeting Xpnpep2.
Collapse
Affiliation(s)
- Sakhila K Banu
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas
| | - Jone A Stanley
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas
| | - Kirthiram K Sivakumar
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas
| | - Joe A Arosh
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas
| | - Rola Barhoumi
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas
| | - Robert C Burghardt
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas
| |
Collapse
|
30
|
Zhang SH, Wang LA, Li Z, Peng Y, Cun YP, Dai N, Cheng Y, Xiao H, Xiong YL, Wang D. APE1 polymorphisms are associated with colorectal cancer susceptibility in Chinese Hans. World J Gastroenterol 2014; 20:8700-8708. [PMID: 25024628 PMCID: PMC4093723 DOI: 10.3748/wjg.v20.i26.8700] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Revised: 03/27/2014] [Accepted: 04/23/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To study the association between four base excision repair gene polymorphisms and colorectal cancer risk in a Chinese population.
METHODS: Two hundred forty-seven colorectal cancer (CRC) patients and three hundred cancer-free controls were enrolled in this study. Four polymorphisms (OGG1 Ser326Cys, APE1 Asp148Glu, -141T/G in the promoter region, and XRCC1 Arg399Gln) in components of the base excision repair pathway were determined in patient blood samples using polymerase chain reaction with confronting two-pair primers. The baseline information included age, gender, family history of cancer, and three behavioral factors [smoking status, alcohol consumption, and body mass index (BMI)]. χ2 tests were used to assess the Hardy-Weinberg equilibrium, the distributions of baseline characteristics, and the four gene polymorphisms between the cases and controls. Multivariate logistic regression analyses were conducted to analyze the correlations between the four polymorphisms and CRC risk, adjusted by the baseline characteristics. Likelihood ratio tests were performed to analyze the gene-behavior interactions of smoking status, alcohol consumption, and BMI on polymorphisms and CRC susceptibility.
RESULTS: The APE1 148 Glu/Glu genotype was significantly associated with an increased risk of colorectal cancer (OR = 2.411, 95%CI: 1.497-3.886, P < 0.001 relative to Asp/Asp genotype). There were no associations between OGG1, XRCC1, or APE1 promoter polymorphisms and CRC risk. A multivariate analysis including three behavioral factors showed that the APE1 148 Glu/Glu genotype was associated with an increased risk for CRC among both smokers and non-smokers, non-drinkers and individuals with a BMI ≥ 25 kg/m2 (ORs = 2.356, 3.299, 2.654, and 2.581, respectively). The XRCC1 399 Arg/Gln genotype was associated with a decreased risk of CRC among smokers and drinkers (OR = 0.289, 95%CI: 0.152-0.548, P < 0.001, and OR = 0.327, 95%CI: 0.158-0.673, P < 0.05, respectively). The APE1 promoter polymorphism -141 T/G genotype was associated with a reduced risk of colorectal cancer among subjects with a BMI < 25 kg/m2 (OR = 0.214, 95%CI: 0.069-0.660, P < 0.05 relative to T/T genotype). There were significant gene-behavior interactions between smoking status and XRCC1 Arg399Gln, as well as BMI and APE1 -141T/G polymorphism (all P < 0.05).
CONCLUSION: APE1 Asp148Glu is associated with increased CRC risk and smoking alters the association between XRCC1 Arg399Gln and CRC risk in the Chinese Han population.
Collapse
|
31
|
Shen H, Cao J, Hong Z, Liu K, Shi J, Ding L, Zhang H, Du C, Li Q, Zhang Z, Zhu B. A functional Ser326Cys polymorphism in hOGG1 is associated with noise-induced hearing loss in a Chinese population. PLoS One 2014; 9:e89662. [PMID: 24599382 PMCID: PMC3943766 DOI: 10.1371/journal.pone.0089662] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 01/22/2014] [Indexed: 01/23/2023] Open
Abstract
DNA damage to cochlear hair cells caused by 8-oxoguanine (8-oxoG) is essential for the development of noise-induced hearing loss (NIHL). Human 8-oxoG DNA glycosylase1 (hOGG1) is a key enzyme in the base excision repair (BER) pathway that eliminates 8-oxoG. Many epidemiological and functional studies have suggested that the hOGG1 Ser326Cys polymorphism (rs1052133) is associated with many diseases. The purpose of this investigation was to investigate whether the hOGG1 Ser326Cys polymorphism in the human BER pathway is associated with genetic susceptibility to NIHL in a Chinese population. This polymorphism was genotyped among 612 workers with NIHL and 615 workers with normal hearing. We found that individuals with the hOGG1 Cys/Cys genotype had a statistically significantly increased risk of NIHL compared with those who carried the hOGG1 Ser/Ser genotype (adjusted OR=1.59, 95% CI=1.13-2.25) and this increased risk was more pronounced among the workers in the 15- to 25- and >25-year noise exposure time, 85-92 dB(A) noise exposure level, ever smoking, and ever drinking groups, similar effects were also observed in a recessive model. In summary, our data suggested that the hOGG1 Cys/Cys genotype may be a genetic susceptibility marker for NIHL in the Chinese Han population.
Collapse
Affiliation(s)
- Huanxi Shen
- Kunshan Municipal Center for Disease Prevention and Control, Kunshan, China
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
| | - Jinglian Cao
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, China
| | - Zhiqiang Hong
- Kunshan Municipal Center for Disease Prevention and Control, Kunshan, China
| | - Kai Liu
- Department of Disease Prevention and Control of Yizheng Hospital, Drum Tower Hospital Group of Nanjing, Yizheng, China
| | - Jian Shi
- Kunshan Municipal Center for Disease Prevention and Control, Kunshan, China
| | - Lu Ding
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, China
| | - Hengdong Zhang
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, China
| | - Cheng Du
- Kunshan Municipal Center for Disease Prevention and Control, Kunshan, China
| | - Qian Li
- The First People's Hospital of Kunshan, Kunshan, China
| | - Zhengdong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
- * E-mail: (BZ); (ZZ)
| | - Baoli Zhu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, China
- * E-mail: (BZ); (ZZ)
| |
Collapse
|
32
|
Corral R, Lewinger JP, Van Den Berg D, Joshi AD, Yuan JM, Gago-Dominguez M, Cortessis VK, Pike MC, Conti DV, Thomas DC, Edlund CK, Gao YT, Xiang YB, Zhang W, Su YC, Stern MC. Comprehensive analyses of DNA repair pathways, smoking and bladder cancer risk in Los Angeles and Shanghai. Int J Cancer 2014; 135:335-47. [PMID: 24382701 DOI: 10.1002/ijc.28693] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 11/05/2013] [Accepted: 11/11/2013] [Indexed: 12/26/2022]
Abstract
Tobacco smoking is a bladder cancer risk factor and a source of carcinogens that induce DNA damage to urothelial cells. Using data and samples from 988 cases and 1,004 controls enrolled in the Los Angeles County Bladder Cancer Study and the Shanghai Bladder Cancer Study, we investigated associations between bladder cancer risk and 632 tagSNPs that comprehensively capture genetic variation in 28 DNA repair genes from four DNA repair pathways: base excision repair (BER), nucleotide excision repair (NER), non-homologous end-joining (NHEJ) and homologous recombination repair (HHR). Odds ratios (ORs) and 95% confidence intervals (CIs) for each tagSNP were corrected for multiple testing for all SNPs within each gene using pACT and for genes within each pathway and across pathways with Bonferroni. Gene and pathway summary estimates were obtained using ARTP. We observed an association between bladder cancer and POLB rs7832529 (BER) (pACT = 0.003; ppathway = 0.021) among all, and SNPs in XPC (NER) and OGG1 (BER) among Chinese men and women, respectively. The NER pathway showed an overall association with risk among Chinese males (ARTP NER p = 0.034). The XRCC6 SNP rs2284082 (NHEJ), also in LD with SREBF2, showed an interaction with smoking (smoking status interaction pgene = 0.001, ppathway = 0.008, poverall = 0.034). Our findings support a role in bladder carcinogenesis for regions that map close to or within BER (POLB, OGG1) and NER genes (XPC). A SNP that tags both the XRCC6 and SREBF2 genes strongly modifies the association between bladder cancer risk and smoking.
Collapse
Affiliation(s)
- Roman Corral
- Department of Preventive Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA; Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Sarlinova M, Majerova L, Matakova T, Musak L, Slovakova P, Skereňová M, Kavcová E, Halašová E. Polymorphisms of DNA repair genes and lung cancer in chromium exposure. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 833:1-8. [PMID: 25300687 DOI: 10.1007/5584_2014_82] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Chromium is a well known carcinogen involved in the lung cancer development. Polymorphism of some of the DNA repair genes may be associated with elevated risk of cancerous transformation. In the present study, we investigated the polymorphisms of the following selected members of the base and nucleotide excision repair genes: XPC (Lys939Gln), XPD (Lys751Gln), XRCC1(Arg399Gln), and hOGG1(Ser326Ser), and the risk they present toward the development of lung cancer, with emphasis on the effect of chromium exposure. We analyzed 119 individuals; 50 patients exposed to chromium with diagnosed lung cancer and 69 healthy controls. Genotypes were determined by a PCR-RFLP method. We found a significantly increased risk of lung cancer development in XPD genotype Lys/Gln (OR=1.94; 95% CI=1.10-3.43; p=0.015) and in the gene combinations: XPD Lys/Gln+XPC Lys/Gln (OR=6.5; 95% CI=1.53-27.49; p=0.009) and XPD Lys/Gln+XPC Gln/Gln(OR=5.2; 95% CI=1.07-25.32; p=0.04). In conclusion, gene polymorphisms in the DNA repair genes may underscore the risk of lung cancer development in the chromium-exposed individuals.
Collapse
Affiliation(s)
- M Sarlinova
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 4 Malá Hora St., 036 01, Martin, Slovakia
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Shiraishi K, Kohno T. Genetic Susceptibility to Lung Adenocarcinoma. Genes Environ 2014. [DOI: 10.3123/jemsge.2014.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|
35
|
POLYMORPHISM OF EXCISION REPAIR GENES XPD, XRCC1, hOGG1 IN THE POPULATION OF THE REPUBLIC OF BELARUS AND ITS IMPACT ON CARCINOGENESIS. ACTA ACUST UNITED AC 2013. [DOI: 10.17816/ecogen11445-63] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
36
|
Ogg1 genetic background determines the genotoxic potential of environmentally relevant arsenic exposures. Arch Toxicol 2013; 88:585-96. [PMID: 24190502 DOI: 10.1007/s00204-013-1151-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 10/22/2013] [Indexed: 10/26/2022]
Abstract
Inorganic arsenic (i-As) is a well-established human carcinogen to which millions of people are exposed worldwide. It is generally accepted that the genotoxic effects of i-As after an acute exposure are partially linked to the i-As-induced production of reactive oxygen species, but it is necessary to better determine whether chronic sub-toxic i-As doses are able to induce biologically significant levels of oxidative DNA damage (ODD). To fill in this gap, we have tested the genotoxic and oxidative effects of environmentally relevant arsenic exposures using mouse embryonic fibroblast MEF mutant Ogg1 cells and their wild-type counterparts. Effects were examined by using the comet assay complemented with the use of FPG enzyme. Our findings indicate that MEF Ogg1-/- cells are more sensitive to arsenite-induced acute toxicity, genotoxicity and ODD. Long-term exposure to sub-toxic doses of arsenite generates a detectable increase in ODD and genotoxic DNA damage only in MEF Ogg1-deficient cells. Altogether, the data presented here point out the relevance of ODD and Ogg1 genetic background on the genotoxic risk of i-As at environmentally plausible doses. The persistent accumulation of DNA 8-OH-dG lesions in Ogg1-/- cells during the complete course of the exposure suggests a relevant role in arsenic-associated carcinogenic risk in turn.
Collapse
|
37
|
Coelho P, García-Lestón J, Costa S, Costa C, Silva S, Dall'Armi V, Zoffoli R, Bonassi S, de Lima JP, Gaspar JF, Pásaro E, Laffon B, Teixeira JP. Genotoxic effect of exposure to metal(loid)s. A molecular epidemiology survey of populations living and working in Panasqueira mine area, Portugal. ENVIRONMENT INTERNATIONAL 2013; 60:163-170. [PMID: 24036326 DOI: 10.1016/j.envint.2013.08.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 08/13/2013] [Accepted: 08/18/2013] [Indexed: 06/02/2023]
Abstract
Previous studies investigating the exposure to metal(loid)s of populations living in the Panasqueira mine area of central Portugal found a higher internal dose of elements such as arsenic, chromium, lead, manganese, molybdenum and zinc in exposed individuals. The aims of the present study were to evaluate the extent of genotoxic damage caused by environmental and occupational exposure in individuals previously tested for metal(loid) levels in different biological matrices, and the possible modulating role of genetic polymorphisms involved in metabolism and DNA repair. T-cell receptor mutation assay, comet assay, micronucleus (MN) test and chromosomal aberrations (CA) were performed in a group of 122 subjects working in the Panasqueira mine or living in the same region. The modifying effect of polymorphisms in GSTA2, GSTM1, GSTP1, GSTT1, XRCC1, APEX1, MPG, MUTYH, OGG1, PARP1, PARP4, ERCC1, ERCC4, and ERCC5 genes was investigated. Significant increases in the frequency of all biomarkers investigated were found in exposed groups, however those environmentally exposed were generally higher. Significant influences of polymorphisms were observed for GSTM1 deletion and OGG1 rs1052133 on CA frequencies, APEX1 rs1130409 on DNA damage, ERCC1 rs3212986 on DNA damage and CA frequency, and ERCC4 rs1800067 on MN and CA frequencies. Our results show that the metal(loid) contamination in the Panasqueira mine area induced genotoxic damage both in individuals working in the mine or living in the area. The observed effects are closely associated to the internal exposure dose, and are more evident in susceptible genotypes. The urgent intervention of authorities is required to protect exposed populations.
Collapse
Affiliation(s)
- Patrícia Coelho
- National Institute of Health, Environmental Health Department, Rua Alexandre Herculano n321, 4000-055 Porto, Portugal.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Letkova L, Matakova T, Musak L, Sarlinova M, Krutakova M, Slovakova P, Kavcova E, Jakusova V, Janickova M, Drgova A, Berzinec P, Halasova E. DNA repair genes polymorphism and lung cancer risk with the emphasis to sex differences. Mol Biol Rep 2013; 40:5261-73. [PMID: 23673479 DOI: 10.1007/s11033-013-2626-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 04/30/2013] [Indexed: 12/31/2022]
Abstract
Polymorphisms in nucleotide and base excision repair genes are associated with the variability in the risk of developing lung cancer. In the present study, we investigated the polymorphisms of following selected DNA repair genes: XPC (Lys939Gln), XPD (Lys751Gln), hOGG1 (Ser326Cys) and XRCC1 (Arg399Gln), and the risks they present towards the development of lung cancer with the emphasis to gender differences within the Slovak population. We analyzed 761 individuals comprising 382 patients with diagnosed lung cancer and 379 healthy controls. Genotypes were determined by polymerase chain reaction/restriction fragment length polymorphism method. We found out statistically significant increased risk for lung cancer development between genders. Female carrying XPC Gln/Gln, XPC Lys/Gln+Gln/Gln and XRCC1 Arg/Gln, XRCC1 Arg/Gln+Gln/Gln genotypes had significantly increased risk of lung cancer corresponding to OR = 2.06; p = 0.04, OR = 1.66; p = 0.04 and OR = 1.62; p = 0.04, OR = 1.69; p = 0.02 respectively. In total, significantly increased risk of developing lung cancer was found in the following combinations of genotypes: XPD Lys/Gln+XPC Lys/Lys (OR = 1.62; p = 0.04), XRCC1 Gln/Gln+hOGG1 Ser/Ser (OR = 2.14; p = 0.02). After stratification for genders, the following combinations of genotype were found to be significant in male: XPD Lys/Gln+XPC Lys/Lys (OR = 1.87; p = 0.03), XRCC1 Arg/Gln+XPC Lys/Lys (OR = 4.52; p = 0.0007), XRCC1 Arg/Gln+XPC Lys/Gln (OR = 5.44; p < 0.0001). In female, different combinations of the following genotypes were found to be significant: XRCC1 Arg/Gln+hOGG1 Ser/Ser (OR = 1.98; p = 0.04), XRCC1 Gln/Gln+hOGG1 Ser/Ser (OR = 3.75; p = 0.02), XRCC1 Arg/Gln+XPC Lys/Gln (OR = 2.40; p = 0.04), XRCC1 Arg/Gln+XPC Gln/Gln (OR = 3.03; p = 0.04). We found out decreased cancer risk in genotype combinations between female patients and healthy controls: XPD Lys/Lys+XPC Lys/Gln (OR = 0.45; p = 0.02), XPD Lys/Gln+XPC Lys/Lys (OR = 0.32; p = 0.005), XPD Lys/Gln+XPC Lys/Gln (OR = 0.48; p = 0.02). Our results did not show any difference between pooled smokers and non-smokers in observed gene polymorphisms in the association to the lung cancer risk. However, gender stratification indicated the possible effect of heterozygous constitution of hOGG1 gene (Ser/Cys) on lung cancer risk in female non-smokers (OR = 0.20; p = 0.01) and heterozygous constitution of XPC gene (Lys/Gln) in male smokers (OR = 2.70; p = 0.01).
Collapse
Affiliation(s)
- L Letkova
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4, 036 01, Martin, Slovak Republic.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
hOGG1 Ser326Cys polymorphism and risk of hepatocellular carcinoma among East Asians: a meta-analysis. PLoS One 2013; 8:e60178. [PMID: 23577090 PMCID: PMC3618171 DOI: 10.1371/journal.pone.0060178] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 02/21/2013] [Indexed: 01/30/2023] Open
Abstract
Background The hOGG1 gene encodes a DNA glycosylase enzyme responsible for DNA repair. The Ser326Cys polymorphism in this gene may influence its repair ability and thus plays a role in carcinogenesis. Several case-control studies have been conducted on this polymorphism and its relationship with the risk of hepatocellular carcinoma (HCC) among East Asians. However, their results are inconsistent. Methods We performed a meta-analysis of published case-control studies assessing the association of the hOGG1 Ser326Cys polymorphism with HCC risk among East Asians. PubMed, EMBASE, SCI, BIOSIS, CNKI and WanFang databases were searched. A random-effect model was used to calculate odds ratios (ORs) and 95% confidence intervals (95% CIs). Analyses were conducted for additive, dominant and recessive genetic models. Results Eight studies were identified involving 2369 cases and 2442 controls assessing the association of the hOGG1 Ser326Cys polymorphism with HCC risk among East Asians. Applying a dominant genetic model, only in the Chinese population, the Cys allele was significantly associated with increased risk of HCC (OR 1.56, 95% CI 1.12–2.17). However, two studies influenced this finding according to sensitivity analysis. Furthermore, considerable heterogeneity and bias existed among Chinese studies. Conclusion There is limited evidence to support that the hOGG1 Ser326Cys polymorphism is associated with HCC risk among East Asians. Well-designed and large-sized studies are required to determine this relationship.
Collapse
|
40
|
Zengi A, Karadeniz M, Cetintas VB, Harman E, Tetik A, Orman M, Eroglu Z, Cetinkalp S, Ozgen AG, Saygili F, Yilmaz C. Is There Any Association Between the Ser326Cys Polymorphism of the 8-Oxoguanine Glycosylase 1 ( OGG1) Gene and Risk of Colon Polyp and Abnormal Glucose Tolerance in Acromegaly Patients? Genet Test Mol Biomarkers 2013; 17:267-73. [DOI: 10.1089/gtmb.2012.0398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Ayhan Zengi
- Department of Endocrinology and Metabolism, Isparta Public Hospital, Isparta, Turkey
| | - Muammer Karadeniz
- Department of Endocrinology, Health Application and Research Center, Sifa University, Izmir, Turkey
| | | | - Ece Harman
- Department of Endocrinology and Metabolism, Izmir Education and Research Hospital, Izmir, Turkey
| | - Aslı Tetik
- Department of Medical Biology, Ege University Medical School, Izmir, Turkey
| | - Mehmet Orman
- Department of Biostatistic, Ege University Medical School, Izmir, Turkey
| | - Zuhal Eroglu
- Department of Medical Biology, Ege University Medical School, Izmir, Turkey
| | - Sevki Cetinkalp
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Ege University Medical School, Izmir, Turkey
| | - Ahmet Gokhan Ozgen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Ege University Medical School, Izmir, Turkey
| | - Fusun Saygili
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Ege University Medical School, Izmir, Turkey
| | - Candeger Yilmaz
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Ege University Medical School, Izmir, Turkey
| |
Collapse
|
41
|
Sameer AS. Colorectal cancer: a researcher’s perspective of the molecular angel’s gone eccentric in the Vale of Kashmir. Tumour Biol 2013; 34:1301-15. [DOI: 10.1007/s13277-013-0692-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 02/03/2013] [Indexed: 02/06/2023] Open
|
42
|
Association of hOGG1 Ser326Cys polymorphism with gastric cancer risk: a meta-analysis. Mol Biol Rep 2012; 39:6563-8. [PMID: 22294108 DOI: 10.1007/s11033-012-1485-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 01/24/2012] [Indexed: 12/16/2022]
Abstract
Studies investigating the association between human 8-oxoguanine glycosylase 1(hOGG1) Ser326Cys polymorphism and gastric cancer (GC) risk have reported conflicting results. We performed a meta-analysis of published case-control studies to better compare results between studies. 11 eligible studies with 2,180 GC cases and 3,985 controls were selected. There were 5 studies involving Caucasians and 5 studies involving Asians. The combined result based on all studies did not show significant difference in any genetics models. Ser/Cys + Cys/Cys versus Ser/Ser (OR = 0.91, 95% CI 0.81-1.03), Cys/Cys versus Ser/Cys + Ser/Ser (OR = 1.07, 95% CI 0.80-1.44), Ser/Cys versus Ser/Ser (OR = 0.91, 95% CI 0.80-1.03), Sys/Cys versus Ser/Cys (OR = 1.10, 95% CI 0.83-1.47), Cys/Cys versus Ser/Ser (OR = 0.99, 95% CI 0.74-1.34), Cys versus Ser (OR = 1.01, 95% CI 0.88-1.17).When stratifying for ethnicity, there was still no significant association found between hOGG1 Ser326Cys polymorphism and GC risk. Funnel plot and Egger’s test showed some evidence of publication bias on the basis of all studies. Two studies were the main reason because their samples were too small. However, the result of sensitivity analysis suggested that the influence of these two studies and one mixed population study on the pooled OR was weak. Our result could explain the association between hOGG1 Ser326Cys polymorphism and GC risk. In conclusion, we did not found the evidence that the Cys allele at codon 326 of hOGG1 could increase GC risk in our analysis.
Collapse
|
43
|
García-Lestón J, Roma-Torres J, Vilares M, Pinto R, Prista J, Teixeira JP, Mayan O, Conde J, Pingarilho M, Gaspar JF, Pásaro E, Méndez J, Laffon B. Genotoxic effects of occupational exposure to lead and influence of polymorphisms in genes involved in lead toxicokinetics and in DNA repair. ENVIRONMENT INTERNATIONAL 2012; 43:29-36. [PMID: 22466227 DOI: 10.1016/j.envint.2012.03.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 02/28/2012] [Accepted: 03/03/2012] [Indexed: 05/31/2023]
Abstract
Lead is still widely used in many industrial processes and is very persistent in the environment. Although toxic effects caused by occupational exposure to lead have been extensively studied, there are still conflicting results regarding its genotoxicity. In a previous pilot study we observed some genotoxic effects in a population of lead exposed workers. Thus, we extended our study analysing a larger population, increasing the number of genotoxicity endpoints, and including a set of 20 genetic polymorphisms related to lead toxicokinetics and DNA repair as susceptibility biomarkers. Our population comprised 148 workers from two Portuguese factories and 107 controls. The parameters analysed were: blood lead levels (BLL) and δ-aminolevulinic acid dehydratase (ALAD) activity as exposure biomarkers, and T-cell receptor (TCR) mutation assay, micronucleus (MN) test, comet assay and OGG1-modified comet assay as genotoxicity biomarkers. Lead exposed workers showed markedly higher BLL and lower ALAD activity than the controls, and significant increases of TCR mutation frequency (TCR-Mf), MN rate and DNA damage. Oxidative damage did not experience any significant alteration in the exposed population. Besides, significant influence was observed for VDR rs1544410 polymorphism on BLL; APE1 rs1130409 and LIG4 rs1805388 polymorphisms on TCR-Mf; MUTYH rs3219489, XRCC4 rs28360135 and LIG4 rs1805388 polymorphisms on comet assay parameter; and OGG1 rs1052133 and XRCC4 rs28360135 polymorphisms on oxidative damage. Our results showed genotoxic effects related to occupational lead exposure to levels under the Portuguese regulation limit of 70 μg/dl. Moreover, a significant influence of polymorphisms in genes involved in DNA repair on genotoxicity biomarkers was observed.
Collapse
Affiliation(s)
- Julia García-Lestón
- Toxicology Unit, Department of Psychobiology, University of A Coruña, Edificio de Servicios Centrales de Investigación, Campus Elviña, 15071-A Coruña, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Novel mutations of OGG1 base excision repair pathway gene in laryngeal cancer patients. Fam Cancer 2012; 11:587-93. [DOI: 10.1007/s10689-012-9554-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
45
|
The functional Ser326Cys polymorphism in hOGG1 is associated with gastric cancer risk: evidence from 1180 cases and 2444 controls. Eur J Gastroenterol Hepatol 2012; 24:683-7. [PMID: 22343785 DOI: 10.1097/meg.0b013e328351d1c0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND The functional Ser326Cys polymorphism in the human 8-oxoguanine DNA glycosylase (hOGG1) gene has been implicated in gastric cancer risk. However, the published findings are inconsistent. We therefore carried out a meta-analysis to investigate this relationship. METHODS Nine published case-control studies, including 1180 gastric cancer cases and 2444 controls, were identified. Odds ratios and 95% confidence intervals were used to assess the strength of the association. RESULTS Overall, the hOGG1 Ser326Cys polymorphism was significantly associated with an increased risk of gastric cancer in a recessive model (Cys/Cys vs. Ser/Cys+Ser/Ser: odds ratio=1.31, 95% confidence interval: 1.03-1.67). In the stratified analysis, a significant association was also observed among Asian populations and hospital-based controls. However, when stratified by smoking status of gastric cancer patients, no statistically significant result was found. CONCLUSION Taken together, the results suggest that the hOGG1 Ser326Cys polymorphism may contribute to susceptibility to gastric cancer.
Collapse
|
46
|
Ma L, Chu H, Wang M, Shi D, Zhong D, Li P, Tong N, Yin C, Zhang Z. hOGG1 Ser326Cys polymorphism is associated with risk of bladder cancer in a Chinese population: a case-control study. Cancer Sci 2012; 103:1215-20. [PMID: 22463382 DOI: 10.1111/j.1349-7006.2012.02290.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Revised: 03/18/2012] [Accepted: 03/24/2012] [Indexed: 01/01/2023] Open
Abstract
Human oxoguanine glycosylase 1 (hOGG1) is a DNA repair enzyme, which plays important roles in the base excision repair (BER) pathway. Several studies reported a common polymorphism Ser326Cys (rs1052133) in hOGG1, which conferred the susceptibility of bladder cancer. We hypothesized that the polymorphism is associated with risk of bladder cancer in a Chinese population. In a case-control study of 1050 histologically confirmed bladder cancer patients and 1404 age and sex matched healthy controls, we genotyped the hOGG1 Ser326Cys polymorphism using TaqMan technology and assessed its association with bladder cancer risk. We found that the hOGG1 Ser/Cys + Ser/Ser genotypes were associated with a significantly increased risk of bladder cancer (adjusted odds ratio [OR] = 1.19, 95% confidence interval [CI] = 1.01-1.41), compared with the Cys/Cys genotype. Furthermore, the increased risk was more pronounced among subjects over age 65 years (OR = 1.31, 95% CI = 1.04-1.66), male subjects (OR = 1.21, 95% CI = 1.00-1.47), ever smokers (OR = 1.29, 95% CI = 1.00-1.68) and heavy smokers (>20 pack-years) (OR = 1.45, 95% CI = 1.03-2.04). No significant association was observed in the stratification of tumor grade and tumor stage for bladder cancer. In conclusion, our results suggest that hOGG1 Ser326Cys polymorphism may contribute to the susceptibility to bladder cancer in a Chinese population.
Collapse
Affiliation(s)
- Lan Ma
- Departments of Molecular & Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing, China
| | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Zhang Y, Zhang L, Song Z, Sun DL, Liu HR, Fu SB, Liu DR, Liu P. Genetic Polymorphisms in DNA Repair Genes OGG1, APE1, XRCC1, and XPD and the Risk of Age-Related Cataract. Ophthalmology 2012; 119:900-6. [DOI: 10.1016/j.ophtha.2011.11.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Revised: 10/16/2011] [Accepted: 11/03/2011] [Indexed: 10/14/2022] Open
|
48
|
Kershaw RM, Hodges NJ. Repair of oxidative DNA damage is delayed in the Ser326Cys polymorphic variant of the base excision repair protein OGG1. Mutagenesis 2012; 27:501-10. [PMID: 22451681 DOI: 10.1093/mutage/ges012] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Gene-environment interactions influence an individual's risk of disease development. A common human 8-oxoguanine DNA glycosylase 1 (OGG1) variant, Cys326-hOGG1, has been associated with increased cancer risk. Evidence suggests that this is due to reduced repair ability, particularly under oxidising conditions but the underlying mechanism is poorly understood. Oxidising conditions may arise due to internal cellular processes, such as inflammation or external chemical or radiation exposure. To investigate wild-type and variant OGG1 regulation and activity under oxidising conditions, we generated mOgg1 (-/-) null mouse embryonic fibroblasts cells stably expressing Ser326- and Cys326-hOGG1 and measured activity, gene expression, protein expression and localisation following treatment with the glutathione-depleting compound L-buthionine-S-sulfoximine (BSO). Assessment of OGG1 activity using a 7,8-dihydro-8-oxodeoxyguanine (8-oxo dG) containing molecular beacon demonstrated that the activity of both Ser326- and Cys326-hOGG1 was increased following oxidative treatment but with different kinetics. Peak activity of Ser326-hOGG1 occurred 12 h prior to that of Cys326-hOGG1. In both variants, the increased activity was not associated with any gene expression or protein increase or change in protein localisation. These findings suggest that up-regulation of OGG1 activity in response to BSO-induced oxidative stress is via post-transcriptional regulation and provide further evidence for impaired Cys326-hOGG1 repair ability under conditions of oxidative stress. This may have important implications for increased mutation frequency resulting from increased oxidative stress in individuals homozygous for the Cys326 hOGG1 allele.
Collapse
Affiliation(s)
- Rachael M Kershaw
- School of Biosciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, B15 2TT, UK
| | | |
Collapse
|
49
|
Wallace SS, Murphy DL, Sweasy JB. Base excision repair and cancer. Cancer Lett 2012; 327:73-89. [PMID: 22252118 DOI: 10.1016/j.canlet.2011.12.038] [Citation(s) in RCA: 224] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 12/20/2011] [Accepted: 12/24/2011] [Indexed: 01/13/2023]
Abstract
Base excision repair is the system used from bacteria to man to remove the tens of thousands of endogenous DNA damages produced daily in each human cell. Base excision repair is required for normal mammalian development and defects have been associated with neurological disorders and cancer. In this paper we provide an overview of short patch base excision repair in humans and summarize current knowledge of defects in base excision repair in mouse models and functional studies on short patch base excision repair germ line polymorphisms and their relationship to cancer. The biallelic germ line mutations that result in MUTYH-associated colon cancer are also discussed.
Collapse
Affiliation(s)
- Susan S Wallace
- Department of Microbiology and Molecular Genetics, The Markey Center for Molecular Genetics, University of Vermont, Burlington, 05405-0068, United States.
| | | | | |
Collapse
|
50
|
Kohno T, Shiraishi K. Genetic Polymorphisms Underlying Lung Cancer Susceptibility and Therapeutic Response. Genes Environ 2012. [DOI: 10.3123/jemsge.34.94] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|