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Zhang L, Pozsgai É, Song Y, Macharia J, Alfatafta H, Zheng J, Li Z, Liu H, Kiss I. The relationship between single nucleotide polymorphisms and skin cancer susceptibility: A systematic review and network meta-analysis. Front Oncol 2023; 13:1094309. [PMID: 36874118 PMCID: PMC9975575 DOI: 10.3389/fonc.2023.1094309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/23/2023] [Indexed: 02/17/2023] Open
Abstract
Background Single nucleotide polymorphisms (SNPs) interfere with the function of certain genes and thus may influence the probability of skin cancer. The correlation between SNPs and skin cancer (SC) lacks statistical power, however. Therefore, the purpose of this study was to identify the gene polymorphisms involved in skin cancer susceptibility using network meta-analysis and to determine the relationship between SNPs and SC risk. Methods PubMed, Embase, and Web of Science were searched for articles including "SNP" and different types of SC as keywords between January 2005 and May 2022. The Newcastle-Ottawa Scale was used to assess bias judgments. The odds ratio (ORs) and their 95% confidence intervals (CIs) were determined to estimate heterogeneity within and between studies. Meta-analysis and network meta-analysis were carried out to identify the SNPs associated with SC. The P-score of each SNP was compared to obtain the rank of probability. Subgroup analyses were performed by cancer type. Results A total of 275 SNPs from 59 studies were included in the study. Two subgroup SNP networks using the allele model and dominant model were analyzed. The alternative alleles of rs2228570 (FokI) and rs13181 (ERCC2) were the first-ranking SNPs in both subgroups one and two of the allele model, respectively. The homozygous dominant genotype and heterozygous genotype of rs475007 in subgroup one and the homozygous recessive genotype of rs238406 in subgroup two were most likely to be associated with skin cancer based on the dominant model. Conclusions According to the allele model, SNPs FokI rs2228570 and ERCC2 rs13181 and, according to the dominant model, SNPs MMP1 rs475007 and ERCC2 rs238406 are closely linked to SC risk.
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Affiliation(s)
- Lu Zhang
- Department of Health Science, Doctoral School of Health Science, University of Pécs, Pécs, Hungary
| | - Éva Pozsgai
- Department of Public Health Medicine, Doctoral School of Clinical Medicine, University of Pécs Medical School, Pécs, Hungary
| | - Yongan Song
- Department of Public Health Medicine, Doctoral School of Clinical Medicine, University of Pécs Medical School, Pécs, Hungary
| | - John Macharia
- Department of Health Science, Doctoral School of Health Science, University of Pécs, Pécs, Hungary
| | - Huda Alfatafta
- Department of Health Science, Doctoral School of Health Science, University of Pécs, Pécs, Hungary
| | - Jia Zheng
- Department of Clinical Epidemiology, the Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Zhaoyi Li
- Faculty of Engineering and Information Technology, University of Pécs, Pécs, Hungary
| | - Hongbo Liu
- Department of Health Statistics, School of Public Health, China Medical University, Shenyang, China
| | - István Kiss
- Department of Public Health Medicine, Doctoral School of Clinical Medicine, University of Pécs Medical School, Pécs, Hungary
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Samara M, Papathanassiou M, Mitrakas L, Koukoulis G, Vlachostergios PJ, Tzortzis V. DNA Repair Gene Polymorphisms and Susceptibility to Urothelial Carcinoma in a Southeastern European Population. ACTA ACUST UNITED AC 2021; 28:1879-1885. [PMID: 34068981 PMCID: PMC8161783 DOI: 10.3390/curroncol28030174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/03/2021] [Accepted: 05/12/2021] [Indexed: 12/24/2022]
Abstract
Single nucleotide polymorphisms (SNPs) in DNA repair genes may predispose to urothelial carcinoma of the bladder (UCB). This study focused on three specific SNPs in a population with high exposure to environmental carcinogens including tobacco and alcohol. A case-control study design was used to assess for presence of XPC PAT +/-, XRCC3 Thr241Met, and ERCC2 Lys751Gln DNA repair gene SNPs in peripheral blood from patients with UCB and healthy individuals. One hundred patients and equal number of healthy subjects were enrolled. The XPC PAT +/+ genotype was associated with a 2-fold increased risk of UCB (OR = 2.16; 95%CI: 1.14-4; p = 0.01). The -/+ and +/+ XPC PAT genotypes were more frequently present in patients with multiple versus single tumors (p = 0.01). No association was detected between ERCC2 Lys751Gln genotypes/alleles, and risk for developing UCB. Presence of the XRCC3 TT genotype (OR = 0.14; 95%CI:0.07-0.25; p < 0.01) and of the T allele overall (OR = 0.26; 95%CI:0.16-0.41; p < 0.01) conferred a protective effect against developing UCB. The XPC PAT -/+ and XRCC3 Thr241Met SNPs are associated with predisposition to UCB. The XPC PAT -/+ SNP is also an indicator of bladder tumor multiplicity, which might require a more individualized surveillance and treatment.
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Affiliation(s)
- Maria Samara
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41100 Larissa, Greece; (M.S.); (M.P.); (G.K.)
| | - Maria Papathanassiou
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41100 Larissa, Greece; (M.S.); (M.P.); (G.K.)
| | - Lampros Mitrakas
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Thessaly, University Hospital of Larissa, 41100 Larissa, Greece;
| | - George Koukoulis
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41100 Larissa, Greece; (M.S.); (M.P.); (G.K.)
| | - Panagiotis J. Vlachostergios
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, NY 10065, USA
- Correspondence: (P.J.V.); (V.T.)
| | - Vassilios Tzortzis
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Thessaly, University Hospital of Larissa, 41100 Larissa, Greece;
- Correspondence: (P.J.V.); (V.T.)
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Wang L, Wang LL, Shang D, Yin SJ, Sun LL, Wang XY, Ji HB. Gene polymorphism of DNA repair gene X-ray repair cross complementing group 1 and xeroderma pigmentosum group D and environment interaction in non-small-cell lung cancer for Chinese nonsmoking female patients. Kaohsiung J Med Sci 2019; 35:39-48. [PMID: 30844146 DOI: 10.1002/kjm2.12007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 11/22/2018] [Indexed: 02/02/2023] Open
Affiliation(s)
- Lei Wang
- Department of Medical Oncology in Section One; Inner Mongolia Chifeng Hospital; Chifeng China
| | - Le-Le Wang
- Department of Medical Oncology in Section One; Inner Mongolia Chifeng Hospital; Chifeng China
| | - Di Shang
- Department of Medical Oncology in Section One; Inner Mongolia Chifeng Hospital; Chifeng China
| | - Sheng-Jie Yin
- Department of Medical Oncology in Section One; Inner Mongolia Chifeng Hospital; Chifeng China
| | - Li-Li Sun
- Department of Medical Oncology in Section One; Inner Mongolia Chifeng Hospital; Chifeng China
| | - Xiao-Ying Wang
- Department of Medical Oncology in Section One; Inner Mongolia Chifeng Hospital; Chifeng China
| | - Hong-Bo Ji
- Department of Medical Oncology in Section One; Inner Mongolia Chifeng Hospital; Chifeng China
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Liu X, Wu J, Shi W, Shi W, Liu H, Wu X. Lead Induces Genotoxicity via Oxidative Stress and Promoter Methylation of DNA Repair Genes in Human Lymphoblastoid TK6 Cells. Med Sci Monit 2018; 24:4295-4304. [PMID: 29933360 PMCID: PMC6045917 DOI: 10.12659/msm.908425] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Lead (Pb) is a widely used metal in modern industry and is regarded as a health hazard. Although lead-induced genotoxicity has been confirmed, the direct evidence that lead induces genotoxicity in human cells and its related mechanisms has not been fully elucidated. In this study, for the first time, we evaluated the genotoxicity induced by lead in human lymphoblastoid TK6 cells. Material/Methods The TK6 cells were incubated with various concentrations of Pb(Ac)2 for 6 h, 12 h, or 24 h. Cell viability was detected by CCK8 assay. Various biochemical markers were assessed by specific kits. Immunofluorescence assay was used to detect γ-H2AX foci formation. The promoter methylation was assessed by methylation-specific PCR. The protein levels were determined by Western blot assay. Results The results showed that after exposure to lead, cell viability was obviously decreased and γ-H2AX foci formation was significantly enhanced in TK6 cells. Moreover, the levels of 8-OHdG, ROS, MDA, and GSSG were increased, while the GSH level and SOD activity were decreased in lead-treated TK6 cells. The activation of the Nrf2-ARE signaling pathway was involved in lead-induced oxidative stress in TK6 cells. Finally, the expressions of DNA repair genes XRCC1, hOGG-1, BRCA1, and XPD were inhibited via enhancing their promoter methylation in TK6 cells after exposure to lead. Conclusions Taken together, our study provides the first published evidence that lead exposure results in DNA damage via promoting oxidative stress and the promoter methylation of DNA repair genes in human lymphoblastoid TK6 cells.
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Affiliation(s)
- Xiangquan Liu
- Department of Nutrition and Food Safety, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China (mainland)
| | - Jingying Wu
- Department of Preventive Medicine, Fuzhou Center for Disease Control and Prevention, Fuzhou, Fujian, China (mainland)
| | - Wenyan Shi
- Department of Clinical Nutrition, Shenzhen Third People's Hospital, Shenzhen, Guangdong, China (mainland)
| | - Wenhua Shi
- Department of Occupational Health, Fuzhou Center for Disease Control and Prevention, Fuzhou, Fujian, China (mainland)
| | - Hekun Liu
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China (mainland)
| | - Xiaonan Wu
- Department of Nutrition and Food Safety, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China (mainland)
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ElMahgoub IR, Gouda HM, Samra MA, Shaheen IA, ElMaraashly AH. Polymorphisms of xeroderma pigmentosum genes (XPC, XPD, and XPG) and susceptibility to acute leukemia among a sample of Egyptian patients. J Hematop 2017. [DOI: 10.1007/s12308-017-0290-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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6
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Nariman-Saleh-Fam Z, Bastami M, Somi MH, Samadi N, Abbaszadegan MR, Behjati F, Ghaedi H, Tavakkoly-Bazzaz J, Masotti A. In silico dissection of miRNA targetome polymorphisms and their role in regulating miRNA-mediated gene expression in esophageal cancer. Cell Biochem Biophys 2016; 74:483-497. [PMID: 27518186 DOI: 10.1007/s12013-016-0754-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 07/09/2016] [Indexed: 12/14/2022]
Abstract
Esophageal cancer is the eighth most common cancer worldwide. Also middle-aged obese adults with higher body mass index during childhood have a greater risk to develop esophageal cancer. The contribution of microRNAs to esophageal cancer has been extensively studied and it became clear that these noncoding RNAs may play crucial roles in pathogenesis, diagnosis and prognosis of the disease. Increasing evidences have suggested that polymorphisms perturbing microRNA targetome (i.e., the compendium of all microRNA target sites) are associated with cancers including esophageal cancer. However, the extent to which such variants contribute to esophageal cancer is still unclear. In this study, we applied an in silico approach to systematically identify polymorphisms perturbing microRNA targetome in esophageal cancer and performed various analyses to predict the functional consequences of the occurrence of these variants. The computational results were integrated to provide a prioritized list of the most potentially disrupting esophageal cancer-implicated microRNA targetome polymorphisms along with the in silico insight into the mechanisms with which such variations may modulate microRNA-mediated regulation. The results of this study will be valuable for future functional experiments aimed at dissecting the roles of microRNA targetome polymorphisms in the onset and progression of esophageal cancer.
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Affiliation(s)
- Ziba Nariman-Saleh-Fam
- Medical Genetics Department, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Milad Bastami
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hossein Somi
- Liver and Gastrointestinal Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naser Samadi
- Faculty of Advanced Biomedical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry and Medical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Abbaszadegan
- Division of Human Genetics, Immunology Research Center, Avicenna Research Institute, Mashhad University of Medical Sciences, Mashhad, 9196773117, Iran
| | - Farkhondeh Behjati
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Hamid Ghaedi
- Medical Genetics Department, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Javad Tavakkoly-Bazzaz
- Medical Genetics Department, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Andrea Masotti
- Bambino Gesù Children's Hospital-IRCCS, Gene Expression - Microarrays Laboratory, Viale di San Paolo 15, Rome, 00146, Italy.
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Bănescu C, Iancu M, Trifa AP, Dobreanu M, Moldovan VG, Duicu C, Tripon F, Crauciuc A, Skypnyk C, Bogliș A, Lazar E. Influence of XPC, XPD, XPF, and XPG gene polymorphisms on the risk and the outcome of acute myeloid leukemia in a Romanian population. Tumour Biol 2016; 37:9357-66. [PMID: 26779634 DOI: 10.1007/s13277-016-4815-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Accepted: 01/06/2016] [Indexed: 02/05/2023] Open
Affiliation(s)
- Claudia Bănescu
- Department of Medical Genetics, University of Medicine and Pharmacy Tirgu Mures, 38 Gh Marinescu St, 540139, Tirgu Mures, Romania.
| | - Mihaela Iancu
- Department of Medical Informatics and Biostatistics, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, 8 Victor Babes St, 400012, Cluj-Napoca, Romania
| | - Adrian P Trifa
- Department of Medical Genetics, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, 8 Victor Babes St, 400012, Cluj-Napoca, Romania
| | - Minodora Dobreanu
- Department of Laboratory Medicine, University of Medicine and Pharmacy Tirgu Mures, 38 Gh Marinescu St, 540139, Tirgu Mures, Romania
| | - Valeriu G Moldovan
- Department of Medical Genetics, University of Medicine and Pharmacy Tirgu Mures, 38 Gh Marinescu St, 540139, Tirgu Mures, Romania
| | - Carmen Duicu
- Pediatric Clinic, University of Medicine and Pharmacy Tirgu Mures, 38 Gh Marinescu St, 540139, Tirgu Mures, Romania
| | - Florin Tripon
- Department of Medical Genetics, University of Medicine and Pharmacy Tirgu Mures, 38 Gh Marinescu St, 540139, Tirgu Mures, Romania
| | - Andrei Crauciuc
- Department of Medical Genetics, University of Medicine and Pharmacy Tirgu Mures, 38 Gh Marinescu St, 540139, Tirgu Mures, Romania
| | - Cristina Skypnyk
- Al Jawhara Center for Molecular Medicine, College of Medicine, Arabian Gulf University, P.O. Box 26671, Manama, Bahrain
| | - Alina Bogliș
- Department of Medical Genetics, University of Medicine and Pharmacy Tirgu Mures, 38 Gh Marinescu St, 540139, Tirgu Mures, Romania
| | - Erzsebeth Lazar
- Hematology Clinic 2, University of Medicine and Pharmacy Tirgu Mures, 38 Gh Marinescu St, 540139, Tirgu Mures, Romania
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Luo J, Cimermancic P, Viswanath S, Ebmeier CC, Kim B, Dehecq M, Raman V, Greenberg CH, Pellarin R, Sali A, Taatjes DJ, Hahn S, Ranish J. Architecture of the Human and Yeast General Transcription and DNA Repair Factor TFIIH. Mol Cell 2015; 59:794-806. [PMID: 26340423 DOI: 10.1016/j.molcel.2015.07.016] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/10/2015] [Accepted: 07/17/2015] [Indexed: 10/23/2022]
Abstract
TFIIH is essential for both RNA polymerase II transcription and DNA repair, and mutations in TFIIH can result in human disease. Here, we determine the molecular architecture of human and yeast TFIIH by an integrative approach using chemical crosslinking/mass spectrometry (CXMS) data, biochemical analyses, and previously published electron microscopy maps. We identified four new conserved "topological regions" that function as hubs for TFIIH assembly and more than 35 conserved topological features within TFIIH, illuminating a network of interactions involved in TFIIH assembly and regulation of its activities. We show that one of these conserved regions, the p62/Tfb1 Anchor region, directly interacts with the DNA helicase subunit XPD/Rad3 in native TFIIH and is required for the integrity and function of TFIIH. We also reveal the structural basis for defects in patients with xeroderma pigmentosum and trichothiodystrophy, with mutations found at the interface between the p62 Anchor region and the XPD subunit.
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Affiliation(s)
- Jie Luo
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, WA 98109, USA
| | - Peter Cimermancic
- Department of Bioengineering and Therapeutic Sciences, Department of Pharmaceutical Chemistry, California Institute for Quantitative Biomedical Sciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Shruthi Viswanath
- Department of Bioengineering and Therapeutic Sciences, Department of Pharmaceutical Chemistry, California Institute for Quantitative Biomedical Sciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Christopher C Ebmeier
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80303, USA
| | - Bong Kim
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, WA 98109, USA
| | - Marine Dehecq
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, PO Box 19024, Mailstop A1-162, Seattle, WA 98109, USA; Génétique des Interactions Macromoléculaires, Institut Pasteur, CNRS UMR3525, 25-28 rue du docteur Roux, 75015 Paris, France
| | - Vishnu Raman
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80303, USA
| | - Charles H Greenberg
- Department of Bioengineering and Therapeutic Sciences, Department of Pharmaceutical Chemistry, California Institute for Quantitative Biomedical Sciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Riccardo Pellarin
- Department of Bioengineering and Therapeutic Sciences, Department of Pharmaceutical Chemistry, California Institute for Quantitative Biomedical Sciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Andrej Sali
- Department of Bioengineering and Therapeutic Sciences, Department of Pharmaceutical Chemistry, California Institute for Quantitative Biomedical Sciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Dylan J Taatjes
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80303, USA
| | - Steven Hahn
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, PO Box 19024, Mailstop A1-162, Seattle, WA 98109, USA
| | - Jeff Ranish
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, WA 98109, USA.
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Velegzhaninov I, Mezenceva V, Shostal O, Baranova A, Moskalev A. Age dynamics of DNA damage and CpG methylation in the peripheral blood leukocytes of mice. Mutat Res 2015; 775:38-42. [PMID: 25867117 DOI: 10.1016/j.mrfmmm.2015.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 03/10/2015] [Accepted: 03/20/2015] [Indexed: 06/04/2023]
Abstract
Certain types of DNA damage are known to accumulate with age. Here we present the quantitative data describing the extent of the spontaneous DNA damage in 144 SHK mice of various ages. In each animal, we assessed double strand breaks, single strand breaks and alkali-labile sites, as well as amounts of oxidized purines, oxidized pyrimidines and misincorporated uracils. In addition, overall levels of genome DNA methylation were evaluated. The amounts of oxidized pyrimidines were correlated with age in males only, while the amounts of double strand breaks (DSB) in DNA samples were correlated with age in females only (R=0.26; p<0.035). No age-related accumulation of single-strand breaks (SSB) was observed. The hypomethylation of DNA was significant in aging females, but not in aging males. Various types of DNA damage were correlated to each other. In attempt to develop more stable indicator of age-dependent alterations in DNA, the DNA Damage Level Differential (DDLD) indices was developed for comet assaying of peripheral blood leukocytes. As expected, DDLD index was shown to be better correlated with age than any single quantitative measure reflecting certain type of DNA damage. A variability of effectiveness of various kinds of DNA repair in individual animals was larger than expected. This conclusion may have a substantial impact on subsequent studies of the mutagens and other kinds of environmental stressors in animal populations. Nor DDLD neither individual quantitative measures of DNA damage were capable of prediction post-sampling survival time.
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Affiliation(s)
- Ilya Velegzhaninov
- Institute of Biology, Komi Science Center of RAS, 28 Kommunisticheskaya st., Syktyvkar 167982, Russia.
| | - Vera Mezenceva
- Institute of Biology, Komi Science Center of RAS, 28 Kommunisticheskaya st., Syktyvkar 167982, Russia.
| | - Olga Shostal
- Institute of Biology, Komi Science Center of RAS, 28 Kommunisticheskaya st., Syktyvkar 167982, Russia.
| | - Ancha Baranova
- Moscow Institute of Physics and Technology, 9 Instituitsky per., Dolgoprudny, Moscow Region 141700, Russia; School of Systems Biology, George Mason University (GMU), 4400 University drive, Fairfax, VA 22030, USA; Research Centre for Medical Genetics (RCMG) of RAMS, 1 Moskvorechie str, Moscow, Russia.
| | - Alexey Moskalev
- Institute of Biology, Komi Science Center of RAS, 28 Kommunisticheskaya st., Syktyvkar 167982, Russia; Syktyvkar State University, 55 Oktyabrsky ave., Syktyvkar 167001, Russia; Moscow Institute of Physics and Technology, 9 Instituitsky per., Dolgoprudny, Moscow Region 141700, Russia; School of Systems Biology, George Mason University (GMU), 4400 University drive, Fairfax, VA 22030, USA; The Vavilov Institute of General Genetics, 3 Gubkina street, Moscow, Russia.
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Rao KS, SureshKumar S, Umamaheswaran G, Paul A, Dubashi B, Gunaseelan K, Dkhar SA. Frequency distribution of DNA repair genes ERCC1 and ERCC2 polymorphisms in South Indian healthy population. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 38:480-488. [PMID: 25155628 DOI: 10.1016/j.etap.2014.07.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 07/28/2014] [Accepted: 07/31/2014] [Indexed: 06/03/2023]
Abstract
DNA repair genes are crucial in maintaining the integrity of the whole genome. Single nucleotide polymorphisms (SNPs) in DNA repair genes have been attributed to the development of various cancers. SNPs of DNA repair genes (ERCC1 and ERCC2) have been implicated in the causation of various cancers as well as inter-individual variability in the therapeutic outcomes of platinum based therapy. Thus establishing the frequency of these functional SNPs in the healthy population is of significance. The present study was aimed to establish the allele and genotype frequencies of ERCC1 (19007C>T, rs11615; 8092C>A, rs3212986) and ERCC2 (Asp312Asn, rs1799793) genes in South Indian healthy population and to compare the data from HapMap populations. The study population consisted of 128 healthy South Indian unrelated individuals of either sex aged between 18 and 60 years. Standard phenol-chloroform method was used to extract DNA from peripheral leukocytes. The genotype of DNA repair gene polymorphisms was determined by quantitative real-time polymerase chain reaction using TaqMan genotyping assay. The observed frequency of the studied polymorphisms followed Hardy-Weinberg equilibrium (p>0.05). The frequencies of the minor alleles of the SNPs rs11615 (T), rs3212986 (A) and rs1799793 (A) were 43.8%, 29.3% and 35.6%, respectively. Gender-based analysis showed no significant difference in the frequency pattern. The observed allele and genotype frequencies showed significant ethnic difference between South Indians and other HapMap populations. This is the first study to provide the normative frequency data of allele and genotype distribution of three SNPs of ERCC1 and ERCC2 in South Indian healthy population. It might be useful in future genotype-phenotype association studies, especially for predicting the efficacy and adverse events of platinum based drugs.
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Affiliation(s)
- Katiboina Srinivasa Rao
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Pondicherry 605006, India.
| | - Srinivasamurthy SureshKumar
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Pondicherry 605006, India
| | - Gurusamy Umamaheswaran
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Pondicherry 605006, India
| | - Abialbon Paul
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Pondicherry 605006, India
| | - Biswajit Dubashi
- Department of Medical Oncology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Pondicherry 605006, India
| | - Karunanithi Gunaseelan
- Department of Radiotherapy, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Pondicherry 605006, India
| | - Steven Aibor Dkhar
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Pondicherry 605006, India
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11
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Ramaniuk VP, Nikitchenko NV, Savina NV, Kuzhir TD, Rolevich AI, Krasny SA, Sushinsky VE, Goncharova RI. Polymorphism of DNA repair genes OGG1, XRCC1, XPD and ERCC6 in bladder cancer in Belarus. Biomarkers 2014; 19:509-16. [PMID: 25089939 DOI: 10.3109/1354750x.2014.943291] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
CONTEXT The study of DNA base and nucleotide excision repair gene polymorphisms in bladder cancer seems to have a predictive value because of the evident relationship between the DNA damage response induced by environmental mutagens and cancer predisposition. OBJECTIVE The objective was to determine OGG1 Ser326Cys, XRCC1 Arg399Gln, XPD Asp312Asn, and ERCC6 Met1097Val polymorphisms in bladder cancer patients as compared to controls. METHODS Both groups were predominantly represented by Belarusians and Eastern Slavs. DNA samples from 336 patients and 370 controls were genotyped using a PCR-RFLP method. RESULTS The genotype distributions were in agreement with the Hardy-Weinberg equilibrium. The minor allele frequencies in the control population were in the range of those in Caucasians in contrast to Asians. The OGG1 326 Ser/Cys and XPD 312 Asp/Asn heterozygous genotypes were inversely associated with cancer risk (OR [95% CI] = 0.69 [0.50-0.95] and 1.35 [1.0-1.82], respectively). The contrasting effects of these genotypes were potentiated due to their interactions with smoking habit or age. CONCLUSIONS Among four DNA repair gene polymorphisms, the OGG1 326 Ser/Cys and XPD 312 Asp/Asn heterozygous genotypes might be recognized as potential genetic markers modifying susceptibility to bladder cancer in Belarus.
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Affiliation(s)
- Volha P Ramaniuk
- Institute of Genetics and Cytology, National Academy of Sciences of Belarus , Minsk , Republic of Belarus
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Offenmüller S, Ravindranath Y, Goyette G, Kanakapalli D, Miller KS, Brecht IB, Zolk O. Focused screening of a panel of cancer-related genetic polymorphisms reveals new susceptibility loci for pediatric acute lymphoblastic leukemia. Pediatr Blood Cancer 2014; 61:1411-5. [PMID: 24604828 DOI: 10.1002/pbc.25011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 02/03/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND A genetic predisposition to acute lymphoblastic leukemia (ALL) in childhood is well established. Currently known risk loci, however, explain only one third of the estimated total risk related to common genetic variations. PROCEDURE We genotyped 1,421 polymorphisms in 407 candidate genes from the SNP500Cancer database (National Cancer Institute) using the Illumina Cancer SNP Panel. We investigated 78 cases (aged 0-19 years at diagnosis, and mixed ethnic background) of childhood B-precursor ALL and compared genotype data with those of 1,417 HapMap controls. To account for the ethnic diversity of the study population, structured association by genetically matching cases and controls using identity-by-state similarity was used. Case-control association analyses were performed using Cochran-Mantel-Haenszel tests, adjusted for the population substructure. RESULTS Common variations rs6966 (3' UTR of PPP1R13L, chr 19q13.32, P = 4.55 × 10(-9)) and rs414580 (intron 2 of MSR1, chr 8p22, P = 6.09 × 10(-8)) were significantly associated with ALL. These SNPs remained significant after adjustment for multiple testing. The SNP rs6966 tags a haplotype block which includes SNPs in PPP1R13L and ERCC2 genes, which are related to DNA repair and cell survival. rs6966 and rs414580 conferred allelic odds ratios of 3.74 (95% confidence interval [CI] 2.31-6.04) and 3.93 (95% CI 2.31-6.69), respectively. CONCLUSIONS These findings reveal two independent novel susceptibility loci for childhood ALL.
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Affiliation(s)
- Sonja Offenmüller
- Pediatric Oncology and Hematology, University Children's Hospital, Erlangen, Germany
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Romanyuk OP, Nikitchenko NV, Savina NV, Kuzhir TD, Goncharova RI. The polymorphism of DNA repair genes XPD, XRCC1, OGG1, and ERCC6, life expectancy, and the inclination to smoke. RUSS J GENET+ 2014. [DOI: 10.1134/s1022795414080067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Wen F, Zhao Z, Liu C, Yin Q, Weng J, Wang Y, Ma Y. A pooled analysis of the ERCC2 Asp312Asn polymorphism and esophageal cancer susceptibility. Tumour Biol 2014; 35:2959-65. [PMID: 24234258 DOI: 10.1007/s13277-013-1380-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 10/30/2013] [Indexed: 01/11/2023] Open
Abstract
Published data regarding the association between the excision repair cross-complimentary group 2 (ERCC2) Asp312Asn polymorphisms and esophageal cancer susceptibility remained controversial. This meta-analysis of literatures was performed to assess the strength of association between the ERCC2 and esophageal cancer susceptibility using random effects model. We systematically searched PubMed, Embase and Web of Science with a time limit of September 15, 2013. Summary odds ratios (ORs) with 95 % confidence intervals (CIs) were used to assess the strength of association between the ERCC2 Asp312Asn polymorphism and esophageal cancer susceptibility using random effects model. A total of seven case-control studies including 1,831 cases and 2,728 controls were included for analysis. Overall, a significant association was found between ERCC2 Asp312Asn polymorphism and esophageal cancer susceptibility for GA vs. GG (OR = 1.20, 95 % CI = 1.03-1.40) and for the dominant model GA/AA vs. GG (OR = 1.18, 95 % CI = 1.03-1.35). However, the ERCC2 Asp312Asn polymorphism was a protective factor for AA vs. GA/GG (OR = 0.63, 95 % CI = 1.15-2.65) in esophageal squamous cell carcinoma. Our meta-analysis suggested that the ERCC2 Asp312Asn polymorphism might be associated with increased risk of esophageal adenocarcinoma and a protective factor for esophageal squamous cell carcinoma.
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Polymorphism of XRCC1, XRCC3, and XPD genes and risk of chronic myeloid leukemia. BIOMED RESEARCH INTERNATIONAL 2014; 2014:213790. [PMID: 24955348 PMCID: PMC4052066 DOI: 10.1155/2014/213790] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/22/2014] [Accepted: 04/28/2014] [Indexed: 02/05/2023]
Abstract
The genetic polymorphisms of X-ray repair cross complementing group 1 (XRCC1), X-ray repair cross complementing group 3 (XRCC3), and xeroderma pigmentosum complementation group D (XPD) repair genes may lead to genetic instability and leukemogenesis. The purpose of the study was to evaluate the association between XRCC1 Arg399Gln, Arg280His and Arg194Trp, XRCC3 Thr241Met, and XPD Lys751Gln polymorphisms and the risk of developing CML in Romanian patients. A total of 156 patients diagnosed with CML and 180 healthy controls were included in this study. We found no association between CML and XRCC1 or XRCC3 variant genotypes in any of the investigated cases. A significant difference was observed in the variant genotype frequencies of the XPD Lys751Gln polymorphism between the patients with CML and control group (for variant homozygous genotypes, OR = 2.37; 95% CI = 1.20–4.67; P value = 0.016 and for combined heterozygous and variant homozygous genotypes, OR = 1.72; 95% CI = 1.10–2.69; P value = 0.019). This was also observed when analyzing the variant 751Gln allele (OR = 1.54; 95% CI = 1.13–2.11; P value = 0.008). Our results suggest that the XPD Lys751Gln variant genotype increases the risk of CML.
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Feng N, Li Y, Long C, Xia ZL, Brandt-Rauf PW. Effects of DNA repair gene polymorphisms on DNA damage in human lymphocytes induced by a vinyl chloride metabolite in vitro. Biomarkers 2014; 19:281-6. [PMID: 24731051 DOI: 10.3109/1354750x.2014.907345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Epidemiologic studies suggest that variability in DNA damage from vinyl chloride monomer (VCM) may be partially mediated by genetic polymorphisms in DNA repair. This study aimed to corroborate these observations with controlled experiments in vitro using cell lines from individuals with differing DNA repair genotypes to determine damage following VCM metabolite exposure. METHODS Matched pairs of lymphoblast cell lines (homozygous wild-type versus homozygous variant for either XRCC1 399 or XPD 751 polymorphism) were exposed to chloroacetaldehyde and analyzed by the cytokinesis-block micronucleus assay. RESULTS All cell lines demonstrated a dose-response of increasing micronuclei with increasing exposure, but for both XRCC1 and XPD, the polymorphic cells peaked at higher micronucleus frequencies and declined at a slower rate to baseline than the wild-type cells. CONCLUSION This supports the findings that XRCC1 and XPD polymorphisms may result in deficient DNA repair of VCM-induced genetic damage.
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Affiliation(s)
- Nannan Feng
- Department of Occupational Health and Toxicology, School of Public Health, Fudan University , Shanghai , China and
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Association between ERCC2 Lys751Gln polymorphism and lung cancer risk: a meta-analysis involving 23,370 subjects. Twin Res Hum Genet 2014; 17:99-107. [PMID: 24556168 DOI: 10.1017/thg.2014.4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Recent studies report a correlation between excision repair cross-complementing group 2 (ERCC2) Lys751Gln polymorphism and an increased risk of lung cancer, but results are controversial and inconclusive. Thus, we conducted a comprehensive meta-analysis in order to assess the correlation between them. Our study uses an odds ratio (OR) with a 95% confidence interval (95% CI) to evaluate the strength of the association; we also performed Begg's funnel plot and the Egger's test to assess the publication bias of previous articles. Finally, our meta-analysis is comprised of 28 full studies, including 23,370 subjects (10,242 cases and 13,128 controls). Our overall research shows that ERCC2 Lys751Gln polymorphism carries an increased risk of developing lung cancer (C vs. A: OR = 1.160, 95% CI = 1.081-1.245, p = .000; CC vs. AA: OR = 1.252, 95% CI = 1.130-1.388, p = .000; CA vs. AA: OR = 1.152, 95% CI = 1.060-1.252, p = .001; CC+CA vs. AA: OR = 1.186, 95% CI = 1.089-1.292, p = .000; CC vs. CA+AA: OR = 1.196, 95% CI = 1.087-1.316, p = .000). In ethnic subgroup analyses, we find a significant risk among Caucasians (C vs. A: OR = 1.106, 95% CI = 1.048-1.166, p = .000; CC vs. AA: OR = 1.233, 95% CI = 1.103-1.378, p = .000; CC+CA vs. AA: OR = 1.113, 95% CI = 1.033-1.199, p = .005; CC vs. CA+AA: OR = 1.185, 95% CI = 1.069-1.313, p = .001) and among Asians under two genetic models (CA vs. AA: OR = 1.265, 95% CI = 1.034-1.549, p = .023; CC+CA vs. AA: OR = 1.252, 95% CI = 1.015-1.544, p = .036). These results were confirmed by similar findings, demonstrated by stratified analyses in study design and histological typing. This meta-analysis indicates that ERCC2 Lys751Gln polymorphism may lead to an increased susceptibility to lung cancer risk among Caucasians and Asians.
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Liu D, Wu D, Li H, Dong M. The effect of XPD/ERCC2 Lys751Gln polymorphism on acute leukemia risk: a systematic review and meta-analysis. Gene 2014; 538:209-16. [PMID: 24486506 DOI: 10.1016/j.gene.2014.01.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 01/06/2014] [Accepted: 01/14/2014] [Indexed: 11/24/2022]
Abstract
AIMS Epidemiological studies have assessed the association between xeroderma pigmentosum group D (XPD) Lys751Gln and acute leukemia risk with conflicting results. We performed this meta-analysis to derive a more precise estimation of the relationship. Pooled odds ratio (OR) with 95% confidence interval (95% CI) was used to assess the strength of the association. RESULTS Ten published case-control studies including a total of 1494 cases and 2259 controls were identified. Overall, significant risk effects of Lys751Gln genotype was found under the dominant model (OR=1.16; 95% CI=1.01-1.34; P=0.032). When stratified by clinical types, the variant genotype was associated with the acute myeloid leukemia (AML) risk under the heterozygote comparison (OR=1.20; 95% CI=1.00-1.43; P=0.048), the homozygote comparison (OR=1.35; 95% CI=1.05-1.74; P=0.019) and the dominant model (OR=1.23; 95% CI=1.04-1.45; P=0.015), respectively. Furthermore, significantly increased risks were also pronounced in Caucasian AML patients (the homozygote comparison: OR=1.38; 95% CI=1.07-1.78; P=0.013; the dominant model: OR=1.23; 95% CI=1.03-1.46; P=0.020; and the recessive model: OR=1.26; 95% CI=1.00-1.60; P=0.050). No evident heterogeneities were observed for the overall data under all genetic models. In addition, no statistical evidence for publication bias was found using the method of Begg's and Egger's tests. CONCLUSION This meta-analysis suggested that XPD Lys751Gln polymorphism might be a risk factor for AML and Caucasian acute leukemia patients.
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Affiliation(s)
- Duo Liu
- Department of pharmacy, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Dongyuan Wu
- Department of pharmacy, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Hongbin Li
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Mei Dong
- Department of pharmacy, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China.
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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]
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20
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El-Tokhy MA, Hussein NA, Bedewy AML, Barakat MR. XPD gene polymorphisms and the effects of induction chemotherapy in cytogenetically normal de novo acute myeloid leukemia patients. Hematology 2013; 19:397-403. [DOI: 10.1179/1607845413y.0000000144] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Mervat A. El-Tokhy
- Applied Medical Chemistry DepartmentMedical Research Institute, Alexandria University, Alexandria, Egypt
| | - Neveen A. Hussein
- Applied Medical Chemistry DepartmentMedical Research Institute, Alexandria University, Alexandria, Egypt
| | - Ahmed M. L. Bedewy
- Hematology DepartmentMedical Research Institute, Alexandria University, Alexandria, Egypt
| | - Mohammad R. Barakat
- Applied Medical Chemistry DepartmentMedical Research Institute, Alexandria University, Alexandria, Egypt
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Tan X, Wang Y, Shi L, Xian L, Guo J, Liang G, Chen M. Polymorphism of ERCC2 Asp312Asn with lung cancer risk: evidence from 20,101 subjects. Genet Test Mol Biomarkers 2013; 18:50-6. [PMID: 24083550 DOI: 10.1089/gtmb.2013.0296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The association between excision repair cross complementing group 2 (ERCC2) Asp312Asn polymorphism and lung cancer has been reported by many articles recently, but the results were controversial and inconclusive. Therefore, a meta-analysis was conducted to assess the relationship between them. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess the strength of association. A total of 22 full studies with 20,101 subjects (8719 cases and 11,382 controls) were included in our research. The meta-analysis result showed that no significant association was found between ERCC2 Asp312Asn polymorphism and lung cancer in overall analysis (AA vs. GG, OR=1.023, 95% CI=0.824-1.270, p=0.838; AG vs. GG, OR=1.003, 95% CI=0.936-1.074, p=0.942; AA+AG vs. GG, OR=1.013, 95% CI=0.949-1.082, p=0.697; AA vs. AG+GG, OR=1.033, 95% CI=0.841-1.270, p=0.755). In subset analyses of stratified ethnicity, significantly increased risk was found among Asians (AA vs. GG, OR=3.212, 95% CI=1.518-6.795, p=0.002; AA vs. AG+GG, OR=3.174, 95% CI=1.500-6.712, p=0.003), whereas the association was not found among Caucasians under any genetic models. When analyses were conducted based on the study design, it indicated that the risk of lung cancer might be significantly increased in a hospital-based study (AA vs. GG, OR=1.323, 95% CI=1.096-1.596, p=0.004; AA+AG vs. GG, OR=1.109, 95% CI=1.000-1.229, p=0.050; AA vs. AG+GG, OR=1.285, 95% CI=1.076-1.535, p=0.006). In addition, a significantly increased risk for nonsmokers was detected under the dominant model (AA+AG vs. GG, OR=1.460, 95% CI=1.095-1.948, p=0.010). In conclusion, this meta-analysis suggested ERCC2 Asp312Asn polymorphism may increase the risk of lung cancer among Asians, whereas not among Caucasians.
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Affiliation(s)
- Xiang Tan
- 1 Department of Cardiothoracic Surgery, First Affiliated Hospital, Guangxi Medical University , Nanning, China
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22
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Pérez-Mayoral J, Pacheco-Torres AL, Morales L, Acosta-Rodríguez H, Matta JL, Dutil J. Genetic polymorphisms in RAD23B and XPC modulate DNA repair capacity and breast cancer risk in Puerto Rican women. Mol Carcinog 2013; 52 Suppl 1:E127-38. [PMID: 23776089 DOI: 10.1002/mc.22056] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 04/26/2013] [Accepted: 05/03/2013] [Indexed: 12/18/2022]
Abstract
Studies have shown that DNA repair capacity (DRC) is significantly decreased in breast cancer patients, but the molecular causes of inter-individual variation in DRC are unknown. We hypothesized that genetic variation in the nucleotide excision repair pathway genes can modulate DRC and breast cancer risk in Puerto Rican women. A total of 228 breast cancer cases and 418 controls were recruited throughout Puerto Rico. For all study participants, eight single nucleotide polymorphisms (SNPs) in the genes XPC, XPD, and RAD23B were genotyped using a TaqMan PCR, and the DRC levels of UV induced-DNA damage was measured in peripheral lymphocytes using a host cell reactivation assay. After adjustment for confounders, RAD23B rs1805329 (Ala249Val) was found to be significantly associated with breast cancer risk under all models tested (P < 0.001). There was also a significant association between breast cancer risk and RAD23B rs10739234 (intronic) under the recessive model (P = 0.003, OR: 2.72, 95% CI: 1.40-5.30). In cases, there was a statistically significant difference in mean DRC per genotype for RAD23B rs1805329 (P < 0.001) and XPC rs2607775 (P = 0.002). When we modeled the combined effect of multiple SNPs that each independently affected DRC on cancer risk, we observed incremental augmentations in risk with increasing number of risk genotypes at those loci (P overall model <0.001). The increase in adverse genotypes was also correlated with a progressive decrease in DRC values. Our data indicate an additive effect of the NER SNPs on DRC and breast cancer risk in Puerto Rican women.
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Affiliation(s)
- Julyann Pérez-Mayoral
- Department of Biochemistry, Ponce School of Medicine and Health Sciences, Ponce, Puerto Rico
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Bywater MJ, Pearson RB, McArthur GA, Hannan RD. Dysregulation of the basal RNA polymerase transcription apparatus in cancer. Nat Rev Cancer 2013; 13:299-314. [PMID: 23612459 DOI: 10.1038/nrc3496] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mutations that directly affect transcription by RNA polymerases rank among the most central mediators of malignant transformation, but the frequency of new anticancer drugs that selectively target defective transcription apparatus entering the clinic has been limited. This is because targeting the large protein-protein and protein-DNA interfaces that control both generic and selective aspects of RNA polymerase transcription has proved extremely difficult. However, recent technological advances have led to a 'quantum leap' in our comprehension of the structure and function of the core RNA polymerase components, how they are dysregulated in a broad range of cancers and how they may be targeted for 'transcription therapy'.
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Affiliation(s)
- Megan J Bywater
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne 8006, Victoria, Australia
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Mei CR, Luo M, Li HM, Deng WJ, Zhou QH. DNA Repair Gene Polymorphisms in the Nucleotide Excision Repair Pathway and Lung Cancer Risk: A Meta-analysis. Chin J Cancer Res 2013; 23:79-91. [PMID: 23482879 DOI: 10.1007/s11670-011-0079-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Accepted: 03/17/2011] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE A number of studies have reported the association of "XPA", "XPC", "XPD/ERCC2" gene polymorphisms with lung cancer risk. However, the results were conflict. To clarify the impact of polymorphisms of "XPA", "XPC", "XPD/ERCC2", on lung cancer risk, a meta-analysis was performed in this study. METHODS The electronic databases PubMed and Embase were retrieved for studies included in this meta-analysis by "XPA", "XPC", "XPD/ERCC2", "lung", "cancer/neoplasm/tumor/carcinoma", "polymorphism" (An upper date limit of October, 31, 2009). A meta-analysis was performed to evaluate the relationship among XPA, XPC and XPD polymorphism and lung cancer risks. RESULTS A total of 31 publications retrieved from Pubmed and Embase included in this study. XPC A939C CC genotype increased lung cancer risk in total population (recessive genetic model: OR=1.23, 95% CI:1.05-1.44; homozygote comparison: OR=1.21,95%CI:1.02-1.43and CC vs. CA contrast: OR=1.25,95%CI:1.06-1.48), except in Asians. XPD A751C, 751C allele and CC genotype also increased lung cancer risk in total population and in Caucasians (recessive genetic model: Total population: OR=1.20, 95%CI:1.07-1.35). No significant correlation was found between XPD A751C and lung cancer risk in Asians and African Americans. XPD G312A AA genotype increased lung cancer risk in total population, in Asians and Caucasians(recessive genetic model: Total population: OR=1.20, 95%CI: 1.06-1.36). No significant association was found between XPA G23A, XPC C499T, XPD C156A and lung cancer risk. CONCLUSION Our results suggest that the polymorphisms in XPC and XPD involve in lung cancer risks. XPA polymorphisms is less related to lung cancer risk.
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Affiliation(s)
- Chao-Rong Mei
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
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Xue H, Lu Y, Lin B, Chen J, Tang F, Huang G. The effect of XPD/ERCC2 polymorphisms on gastric cancer risk among different ethnicities: a systematic review and meta-analysis. PLoS One 2012; 7:e43431. [PMID: 23028453 PMCID: PMC3441548 DOI: 10.1371/journal.pone.0043431] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Accepted: 07/20/2012] [Indexed: 12/13/2022] Open
Abstract
Background Potential xeroderma pigmentosum group D (XPD), also called excision repair cross-complimentary group two (ERCC2), Lys751Gln and Asp312Asn polymorphisms have been implicated in gastric cancer risk among different ethnicities. Methods We aimed to explore the effect of XPD Lys751Gln and Asp312Asn polymorphisms on the susceptibility to gastric cancer among different ethnicities through a systematic review and meta-analysis. Each initially included article was scored for quality appraisal. Desirable data were extracted and registered into databases. 13 studies were ultimately eligible for the meta-analysis of Lys751Gln polymorphism and 9 studies for the meta-analysis of Asp312Asn polymorphism. We adopted the most probably appropriate genetic model (recessive model) for both Lys751Gln and Asp312Asn polymorphisms. Potential sources of heterogeneity were sought out via subgroup and sensitivity analyses, and publication biases were estimated. Results Statistically significant findings were apparently noted in Asians but not in Caucasians for both XPD Lys751Gln and XPD Asp312Asn polymorphisms. A statistically significant finding could be seen in noncardia-type gastric cancer for XPD Lys751Gln polymorphism. A statistically significant finding could also be seen in high quality subgroup, small-and-moderate sample size subgroup, articles published after 2007, or PCR-RFLP genotyping subgroup for XPD Asp312Asn polymorphism. Conclusions Our meta-analysis indicates that XPD Gln751Gln (CC) genotype and Asn312Asn (AA) genotype may seem to be more susceptible to gastric cancer in Asian populations but not in Caucasian populations, suggesting that the two genotypes may be important biomarkers of gastric cancer susceptibility for Asian populations, the assumption that needs to be further confirmed in well-designed studies among different ethnicities. Gln751Gln (CC) genotype may also be associated with noncardia-type gastric cancer risk, which should also be confirmed among different ethnicities in the future.
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Affiliation(s)
- Huiping Xue
- Division of Gastroenterology and Hepatology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Institution of Digestive Disease, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Jiaotong University, Shanghai, People's Republic of China
- * E-mail: (HX); (GH)
| | - Yan Lu
- Department of Medicine, International Peace Hospital for the Protection of Mother and Child Health, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Bing Lin
- Division of Nutrition, Zhongshan Hospital, Fudan University School of Medicine, Shanghai, People's Republic of China
| | - Jinxian Chen
- Department of General Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Feng Tang
- Division of Pathology, Huashan Hospital, Fudan University School of Medicine, Shanghai, People's Republic of China
| | - Gang Huang
- Department of Nuclear Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
- * E-mail: (HX); (GH)
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Zhu ML, Wang M, Cao ZG, He J, Shi TY, Xia KQ, Qiu LX, Wei QY. Association between the ERCC5 Asp1104His polymorphism and cancer risk: a meta-analysis. PLoS One 2012; 7:e36293. [PMID: 22815677 PMCID: PMC3399856 DOI: 10.1371/journal.pone.0036293] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Accepted: 03/29/2012] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Excision repair cross complementing group 5 (ERCC5 or XPG) plays an important role in regulating DNA excision repair, removal of bulky lesions caused by environmental chemicals or UV light. Mutations in this gene cause a rare autosomal recessive syndrome, and its functional single nucleotide polymorphisms (SNPs) may alter DNA repair capacity phenotype and cancer risk. However, a series of epidemiological studies on the association between the ERCC5 Asp1104His polymorphism (rs17655, G>C) and cancer susceptibility generated conflicting results. METHODOLOGY/PRINCIPAL FINDINGS To derive a more precise estimation of the association between the ERCC5 Asp1104His polymorphism and overall cancer risk, we performed a meta-analysis of 44 published case-control studies, in which a total of 23,490 cases and 27,168 controls were included. To provide additional biological plausibility, we also assessed the genotype-gene expression correlation from the HapMap phase II release 23 data with 270 individuals from 4 ethnic populations. When all studies were pooled, we found no statistical evidence for a significantly increased cancer risk in the recessive genetic models (His/His vs. Asp/Asp: OR = 0.99, 95% CI: 0.92-1.06, P = 0.242 for heterogeneity or His/His vs. Asp/His + Asp/Asp: OR = 0.98, 95% CI: 0.93-1.03, P = 0.260 for heterogeneity), nor in further stratified analyses by cancer type, ethnicity, source of controls and sample size. In the genotype-phenotype correlation analysis from 270 individuals, we consistently found no significant correlation of the Asp1104His polymorphism with ERCC5 mRNA expression. CONCLUSIONS/SIGNIFICANCE This meta-analysis suggests that it is unlikely that the ERCC5 Asp1104His polymorphism may contribute to individual susceptibility to cancer risk.
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Affiliation(s)
- Mei-Ling Zhu
- Department of Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Cancer Research Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Mengyun Wang
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Cancer Research Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Zhi-Gang Cao
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Breast Surgery, Cancer Center and Cancer Institute, Fudan University, Shanghai, China
| | - Jing He
- Department of Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Cancer Research Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Ting-Yan Shi
- Department of Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Cancer Research Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Kai-Qin Xia
- Department of Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Cancer Research Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Li-Xin Qiu
- Department of Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Cancer Research Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Qing-Yi Wei
- Cancer Research Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
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Hu YY, Yuan H, Jiang GB, Chen N, Wen L, Leng WD, Zeng XT, Niu YM. Associations between XPD Asp312Asn polymorphism and risk of head and neck cancer: a meta-analysis based on 7,122 subjects. PLoS One 2012; 7:e35220. [PMID: 22536360 PMCID: PMC3335063 DOI: 10.1371/journal.pone.0035220] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Accepted: 03/12/2012] [Indexed: 02/07/2023] Open
Abstract
Background To investigate the association between XPD Asp312Asn polymorphism and head and neck cancer risk through this meta-analysis. Methods We performed a meta-analysis of 9 published case-control studies including 2,670 patients with head and neck cancer and 4,452 controls. An odds ratio (OR) with a 95% confidence interval (CI) was applied to assess the association between XPD Asp312Asn polymorphism and head and neck cancer risk. Results Overall, no significant association between XPD Asp312Asn polymorphism and head and neck cancer risk was found in this meta-analysis (Asn/Asn vs. Asp/Asp: OR = 0.95, 95%CI = 0.80–1.13, P = 0.550, Pheterogeneity = 0.126; Asp/Asn vs. Asp/Asp: OR = 1.11, 95%CI = 0.99–1.24, P = 0.065, Pheterogeneity = 0.663; Asn/Asn+Asp/Asn vs. Asp/Asp: OR = 1.07, 95%CI = 0.97–1.19, P = 0.189, Pheterogeneity = 0.627; Asn/Asn vs. Asp/Asp+Asp/Asn: OR = 0.87, 95%CI = 0.68–1.10, P = 0.243, Pheterogeneity = 0.089). In the subgroup analysis by HWE, ethnicity, and study design, there was still no significant association detected in all genetic models. Conclusions This meta-analysis demonstrates that XPD Asp312Asn polymorphism may not be a risk factor for developing head and neck cancer.
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Affiliation(s)
- Yuan Yuan Hu
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, People's Republic of China
| | - Hua Yuan
- Institute of Dental Research, Nanjing Medical University, Nanjing, People's Republic of China
| | - Guang Bing Jiang
- Department of Radiology, Taihe Hospital, Hubei University of Medicine, Shiyan, People's Republic of China
| | - Ning Chen
- Institute of Dental Research, Nanjing Medical University, Nanjing, People's Republic of China
| | - Li Wen
- Department of Dermatology, Taihe Hospital, Hubei University of Medicine, Shiyan, People's Republic of China
| | - Wei Dong Leng
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, People's Republic of China
| | - Xian Tao Zeng
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, People's Republic of China
| | - Yu Ming Niu
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, People's Republic of China
- Institute of Dental Research, Nanjing Medical University, Nanjing, People's Republic of China
- * E-mail:
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A polymorphism in the XPD gene predisposes to leukemic transformation and new nonmyeloid malignancies in essential thrombocythemia and polycythemia vera. Blood 2012; 119:5221-8. [PMID: 22496165 DOI: 10.1182/blood-2012-02-411215] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Patients with essential thrombocythemia (ET) and polycythemia vera (PV) have an increased incidence of acute myeloid leukemia and new nonhematologic malignancies compared with the general population. However, information on the factors determining the risk for such complications is limited. In the present study, we investigated whether constitutional genetic variations in DNA repair predispose to leukemic transformation and new nonmyeloid neoplasias in patients with ET and PV. Case-control studies for predisposition to both types of malignancies were nested in a cohort of 422 subjects diagnosed with ET or PV during the period 1973-2010 in several institutions in Spain. A total of 64 incidence cases of leukemia and 50 cases of primary nonmyeloid cancers were accrued. At conditional regression analysis, the Gln/Gln genotype in the XPD codon 751 showed the strongest association with both leukemic transformation (odds ratio [OR] = 4.9; 95% confidence interval [95% CI], 2.0-12) and development of nonmyeloid malignancies (OR = 4.2; 95% CI, 1.5-12). Additional predictive factors were exposure to cytoreductive agents for leukemic transformation (OR = 3.5; 95% CI, 2.0-6.2) and age for nonmyeloid malignancies (OR = 2.0; 95% CI, 1.4-2.8). These findings provide further evidence about the contribution of inherited genetic variations to the pathogenesis and clinical course of myeloproliferative neoplasms.
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Moisan F, Laroche-Clary A, Auzanneau C, Ricard N, Pourquier P, Robert J, Le Morvan V. Deciphering the role of the ERCC2 gene polymorphism on anticancer drug sensitivity. Carcinogenesis 2012; 33:962-8. [DOI: 10.1093/carcin/bgs107] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Yuan H, Li H, Ma H, Niu Y, Wu Y, Zhang S, Hu Z, Shen H, Chen N. Genetic polymorphisms in key DNA repair genes and risk of head and neck cancer in a Chinese population. Exp Ther Med 2012; 3:719-724. [PMID: 22969958 DOI: 10.3892/etm.2012.476] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Accepted: 01/30/2012] [Indexed: 11/06/2022] Open
Abstract
Although tobacco and alcohol consumption are the major risk factors of head and neck cancer (HNC), genetic variations of genes involved in several biological pathways, such as DNA repair genes, may affect an individual's susceptibility to HNC. However, few studies have investigated the associations between polymorphisms in DNA repair genes and HNC risk in the Chinese population. Thus, we genotyped five common, non-synonymous single-nucleotide polymorphisms (SNPs) [APEX1 (Asp148Glu), XRCC1 (Arg399Gln), ADPRT (Val762Ala), XPD (Lys751Gln) and XPG (His1104Asp)] in a hospital-based, case-control study of 397 HNC cases and 900 cancer-free controls in China. The results showed that none of the five SNPs in the DNA repair pathway was significantly associated with HNC risk, suggesting that these polymorphisms may not play a major role in HNC susceptibility in this Chinese population.
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Abstract
Structures of complete 10-subunit yeast TFIIH and of a nested set of subcomplexes, containing 5, 6, and 7 subunits, have been determined by electron microscopy (EM) and 3D reconstruction. Consistency among all the structures establishes the location of the "minimal core" subunits (Ssl1, Tfb1, Tfb2, Tfb4, and Tfb5), and additional densities can be specifically attributed to Rad3, Ssl2, and the TFIIK trimer. These results can be further interpreted by placement of previous X-ray structures into the additional densities to give a preliminary picture of the RNA polymerase II preinitiation complex. In this picture, the key catalytic components of TFIIH, the Ssl2 ATPase/helicase and the Kin28 protein kinase are in proximity to their targets, downstream promoter DNA and the RNA polymerase C-terminal domain.
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Abstract
Xeroderma pigmentosum (XP) is a rare, autosomal recessive disorder of DNA repair characterized by sun sensitivity and UV radiation-induced skin and mucous membrane cancers. Initially described in 1874 by Moriz Kaposi in Vienna, nearly 100 years later, James Cleaver in San Francisco reported defective DNA repair in XP cells. This eventually provided the basis for a mechanistic link between sun exposure, DNA damage, somatic mutations, and skin cancer. XP cells were found to have defects in seven of the proteins of the nucleotide excision repair pathway and in DNA polymerase η. XP cells are hypersensitive to killing by UV radiation, and XP cancers have characteristic "UV signature" mutations. Clinical studies at the National Institutes of Health found a nearly 10,000-fold increase in skin cancer in XP patients under the age of 20 years, demonstrating the substantial importance of DNA repair in cancer prevention in the general population. Approximately 25% of XP patients have progressive neurological degeneration with progressive loss of neurons, probably from DNA damage induced by oxidative metabolism, which kills nondividing cells in the nervous system. Interestingly, patients with another disorder, trichothiodystrophy, have defects in some of the same genes as XP, but they have primary developmental abnormalities without an increase in skin cancer.
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Affiliation(s)
- John J DiGiovanna
- DNA Repair Section, Dermatology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892-4258, USA
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33
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Duell EJ. Epidemiology and potential mechanisms of tobacco smoking and heavy alcohol consumption in pancreatic cancer. Mol Carcinog 2012; 51:40-52. [PMID: 22162230 DOI: 10.1002/mc.20786] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Tobacco smoking represents an important known cause of ductal pancreatic adenocarcinoma. Recent data from pooled analyses in consortia involving multiple case-control and cohort studies suggest that heavy (but not moderate or light) alcohol consumption also may increase pancreatic cancer risk. Animal and human evidence indicate that tobacco carcinogens and metabolites may act in concert and have both genetic and epigenetic effects at early and later stages in pancreatic tumorigenesis. One of the more important tobacco-related carcinogens, NNK, probably acts via multiple pathways. Heavy alcohol consumption may increase pancreatic cancer risk by potentiating the effects of other risk factors such as tobacco smoking, poor nutrition, and inflammatory pathways related to chronic pancreatitis, but also may have independent genetic and epigenetic effects. Animal and human studies of tobacco- and alcohol-related pancreatic carcinogenesis suggest multi-modal, overlapping mechanistic pathways. Tobacco smoking and heavy alcohol consumption are preventable exposures, and their avoidance would substantially decrease the burden of pancreatic cancer worldwide.
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Affiliation(s)
- Eric J Duell
- Unit of Nutrition, Environment and Cancer, Epidemiology Research Program, Catalan Institute of Oncology, Bellvitge Biomedical Research Institute, L'Hospitalet de Llobregat, Barcelona, Spain
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Feng Z, Ni Y, Dong W, Shen H, Du J. Association of ERCC2/XPD polymorphisms and interaction with tobacco smoking in lung cancer susceptibility: a systemic review and meta-analysis. Mol Biol Rep 2012; 39:57-69. [PMID: 21614524 DOI: 10.1007/s11033-011-0710-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 04/23/2011] [Indexed: 12/01/2022]
Abstract
The association of the two ERCC polymorphisms, Asp312Asn and Lys751Gln, with lung cancer risk remains controversial and inconclusive. To better evaluate the potential role of the two polymorphisms and interaction with tobacco smoking in lung cancer susceptibility presented in diverse populations, we have conducted a meta-analysis based on 26 studies from 24 publications which included analyses of Asp312Asn (7121 cases, 8962 controls) and Lys751Gln (8396 cases, 10510 controls) polymorphisms. Overall, significantly elevated lung cancer risk was associated with ERCC2 312Asn allele(homozygous model: OR=1.20[1.05-1.36], P=0.006; recessive model: OR=1.20[1.06-1.35], P=0.004) and 751Gln allele(homozygous model: OR=1.31[1.17-1.46], P<0.00001; heterozygous model: OR=1.11[1.04-1.19], P=0.003; recessive model: OR=1.23[1.11-1.37], P<0.0001; dominant model: OR=1.15[1.08-1.23], P<0.0001). In ethnic subgroup analyses, significantly increased risk was associated with ERCC2 312Asn allele for both Caucasians and Asians, and 751Gln allele for both Caucasians and Latino-Americans. When stratified by smoking status, significantly elevated risk of both polymorphisms for never-smokers was detected (dominant model, OR=1.46[1.09-1.95] and 1.57[1.19-2.08], P=0.01 and 0.002, respectively). In conclusion, this meta-analysis suggests that the two ERCC2 polymorphisms may contribute to lung cancer susceptibility serving as low-penetrance risk factors. Extremely large-scale evidence would be necessary to confirm the effects on ethnically specific populations and gene-environment interactions.
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Affiliation(s)
- Zhen Feng
- Department of Thoracic Surgery, Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, Jinan, 250021, People's Republic of China
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Azad AK, Bairati I, Samson E, Cheng D, Mirshams M, Qiu X, Savas S, Waldron J, Wang C, Goldstein D, Xu W, Meyer F, Liu G. Validation of genetic sequence variants as prognostic factors in early-stage head and neck squamous cell cancer survival. Clin Cancer Res 2011; 18:196-206. [PMID: 22076708 DOI: 10.1158/1078-0432.ccr-11-1759] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE From the published literature, we identified 23 germ line sequence variants in 17 genes from hypothesis-generating studies that were associated with prognosis of head and neck cancer, including sequence variants of DNA repair (ERCC1, ERCC4, ERCC5, MSH2, XPA, ERCC2, XRCC1, XRCC3), DNA methylation (DNMT3B), cell cycle and proliferation (CCND1, TP53), xenobiotic metabolism (GSTM1, GSTT1, CYP2D6), metastatic -potential (MMP3), immunologic (CTLA4), and growth factor pathways (FGFR4). The purpose of this study was to validate the role of these 23 sequence variants for overall (OS) and disease-free survival (DFS) in a large, comprehensive, well-annotated data set of patients with head and neck cancer. EXPERIMENTAL DESIGN We genotyped these sequence variants in 531 patients with stage I and II radiation-treated head and neck cancer (originally recruited for an alpha-tocopherol/beta-carotene placebo-controlled secondary prevention study), and analyzed using Cox proportional hazards models, stratified by treatment arm, adjusting for clinical prognostic factors. RESULTS Two OS associations were statistically significant for each variant allele when compared with the wild-type: CTLA4: A49G [rs231775; adjusted HR (aHR), 1.32 (1.1-1.6); P = 0.01] and XRCC1: Arg339Gln [rs25487; aHR, 1.28 (1.05-1.57); P = 0.02]. Both of these sequence variants had significant results in the opposite direction as prior published literature. Two DFS associations were of borderline significance in the same direction as prior literature: ERCC2: Lys751Gln [rs13181; aHR, 0.80 (0.6-1.0); P = 0.05] and TP53: Arg72Pro [rs1042522; aHR, 1.28 (1.0-1.6); P = 0.03], comparing number of variant alleles with reference of zero variants. CONCLUSIONS None of the prognostic sequence variants previously published was validated for OS in our patients with early-stage radiation-treated head and neck cancer, though rs1381and rs1042522 had borderline significant association with DFS.
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Affiliation(s)
- Abul Kalam Azad
- Applied Molecular Oncology, Ontario Cancer Institute, Princess Margaret Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
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Biason P, Hattinger CM, Innocenti F, Talamini R, Alberghini M, Scotlandi K, Zanusso C, Serra M, Toffoli G. Nucleotide excision repair gene variants and association with survival in osteosarcoma patients treated with neoadjuvant chemotherapy. THE PHARMACOGENOMICS JOURNAL 2011; 12:476-83. [PMID: 21826087 DOI: 10.1038/tpj.2011.33] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The aim of this study was to investigate the role of common polymorphisms in the nucleotide excision repair pathway genes in the tumorigenesis of osteosarcoma and in the response to DNA damaging therapies, such as cisplatin-based neoadjuvant therapy. Excision repair cross-complementing (ERCC) group 2 (XPD; rs13181 and rs1799793), group 5 (XPG; rs17655) and group 1 (XPA; rs3212986 and rs11615) polymorphisms were analyzed in a group of 130 homogenously treated patients with high-grade osteosarcoma, for association with event-free survival (EFS), using the Kaplan-Meier plots and log-rank test. A positive association was observed between both XPD single-nucleotide polymorphisms and an increased EFS (hazards ratio (HR) = 0.34, 95% confidence interval (CI) 0.12-0.98 and HR = 0.19, 95% CI 0.05-0.77, respectively). We had also performed a case-control study for relative risk to develop osteosarcoma. Patients carrying at least one variant allele of XPD rs1799793 had a reduced risk of developing osteosarcoma, compared with wild-type patients (odds ratio = 0.55, 95% CI 0.36-0.84). This study suggests that XPD rs1799793 could be a marker of osteosarcoma associated with features conferring either a better prognosis or a better outcome after platinum therapy, or both.
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Affiliation(s)
- P Biason
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, National Cancer Institute, Aviano, Italy
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37
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Monaco R, Rosal R, Dolan MA, Pincus MR, Freyer G, Brandt-Rauf PW. Conformational effects of a common codon 751 polymorphism on the C-terminal domain of the xeroderma pigmentosum D protein. J Carcinog 2011; 8:12. [PMID: 19661678 PMCID: PMC2799167 DOI: 10.4103/1477-3163.54918] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Aim: The xeroderma pigmentosum D (XPD) protein is a DNA helicase involved in the repair of DNA damage, including nucleotide excision repair (NER) and transcription-coupled repair (TCR). The C-terminal domain of XPD has been implicated in interactions with other components of the TFIIH complex, and it is also the site of a common genetic polymorphism in XPD at amino acid residue 751 (Lys->Gln). Some evidence suggests that this polymorphism may alter DNA repair capacity and increase cancer risk. The aim of this study was to investigate whether these effects could be attributable to conformational changes in XPD induced by the polymorphism. Materials and Methods: Molecular dynamics techniques were used to predict the structure of the wild-type and polymorphic forms of the C-terminal domain of XPD and differences in structure produced by the polymorphic substitution were determined. Results: The results indicate that, although the general configuration of both proteins is similar, the substitution produces a significant conformational change immediately N-terminal to the site of the polymorphism. Conclusion: These results provide support for the hypothesis that this polymorphism in XPD could affect DNA repair capability, and hence cancer risk, by altering the structure of the C-terminal domain.
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Affiliation(s)
- Regina Monaco
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032; Division of Environmental and Occupational Health Sciences, School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, USA.
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Luo YF, Wang BB, Zhou Z, Ding XC, Hu SS, Zhou GK, Ma X, Qi YH. Polymorphisms of the DNA Repair GenesXPDandXRCC1and the Risk of Age-Related Cataract Development in Han Chinese. Curr Eye Res 2011; 36:632-6. [DOI: 10.3109/02713683.2011.571358] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Analysis of XPD genetic polymorphisms of esophageal squamous cell carcinoma in a population of Yili Prefecture, in Xinjiang, China. Mol Biol Rep 2011; 39:709-14. [PMID: 21553048 DOI: 10.1007/s11033-011-0789-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2010] [Accepted: 04/29/2011] [Indexed: 02/08/2023]
Abstract
To evaluate the association with genetic polymorphisms in Xeroderma pigmentosum complementation group D (XPD) gene of esophageal squamous cell carcinoma (ESCC) risk in a population of Yili Prefecture, in Xinjiang, China. A hospital-based case-control study was designed with 571 samples including 213 ESCC patients and 358 controls with age, gender and ethnicity-matched subjects (Kazakh, Uygur and Han ethnic). Genotypes were determined by PCR restriction fragment length polymorphism (PCR-RLFP) and confirmed by sequence. Relative risk associated with a particular genotype was estimated by calculating odds ratios (OR) along with 95% confidence intervals (CI). Significant ESCC risk was observed for XPD Lys751Gln (rs13181) frequency of presence C allele (OR: 1.409, 95% CI: 1.005-1.976) in the three ethnics. XPD Asp312Asn (rs1799793) of Han ethnic was associated with a borderline decrease of ESCC (OR: 0.362, 95% CI: 0.145-0.906), however, it was associated with ESCC risk in Uygur ethnic (OR: 2.403, 95% CI: 1.087-5.310). The results demonstrated an association between the XPD Lys751Gln (rs13181) for frequency of presence C allele and risk for ESCC in the three ethnics of Yili Prefecture, in Xinjiang, China. XPD Asp312Asn (rs1799793), which was associated with a borderline decrease of Han ethnic and risk of Uygur ethnic of ESCC, may play a different role in the three ethnics of ESCC.
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ERCC2 Lys751Gln and Asp312Asn polymorphisms and gastric cancer risk: a meta-analysis. J Cancer Res Clin Oncol 2010; 137:939-46. [DOI: 10.1007/s00432-010-0956-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Accepted: 10/12/2010] [Indexed: 01/30/2023]
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Huang CG, Iv GD, Liu T, Liu Q, Feng JG, Lu XM. Polymorphisms of COMT and XPD and risk of esophageal squamous cell carcinoma in a population of Yili Prefecture, in Xinjiang, China. Biomarkers 2010; 16:37-41. [PMID: 20979431 DOI: 10.3109/1354750x.2010.522732] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To investigate polymorphisms of COMT (Rs4680) and XPD (Rs13181) and risk of esophageal squamous cell carcinoma (ESCC) in a population from Yili Prefecture, Xinjiang, China. METHODS A hospital-based case-control study was designed. Genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Odds ratios (OR) and 95% confidence intervals (CI) were analysed using unconditional logistic regression. RESULTS An increased risk of ESCC was discovered with COMT in relation to the frequency of the presence of the A allele (Rs4680; OR 1.30, 95% CI 1.00-1.68). An individual with combined COMT 158 (Val/Met or Met/Met) and XPD 751 (Lys/Gln or Gln/Gln) genotype had an increased ESCC risk. CONCLUSIONS Polymorphic variation in COMT Val158Met and XPD Lys751Gln may be important for ESCC susceptibility.
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Affiliation(s)
- Cong-Gai Huang
- Medical Research Center, First Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang Uygur, PR China
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Shi JY, Ren ZH, Jiao B, Xiao R, Yun HY, Chen B, Zhao WL, Zhu Q, Chen Z, Chen SJ. Genetic variations of DNA repair genes and their prognostic significance in patients with acute myeloid leukemia. Int J Cancer 2010; 128:233-8. [DOI: 10.1002/ijc.25318] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Gao W, Romkes M, Zhong S, Nukui T, Persad RA, Smith PJB, Branch R, Keohavong P. Genetic polymorphisms in the DNA repair genes XPD and XRCC1, p53 gene mutations and bladder cancer risk. Oncol Rep 2010; 24:257-62. [PMID: 20514470 DOI: 10.3892/or_00000854] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Previous studies have suggested that certain genetic polymorphisms, specifically the Xeroderma pigmentosum group D (XPD) gene codon 751 and the X-ray repair cross-complementing group 1 (XRCC1) gene codon 399 polymorphisms, were associated with an increased risk of lung cancer, and, in some studies, with a greater risk for mutations in the p53 tumor suppressor gene in lung tumors. To evaluate whether these gene polymorphisms may be associated with an increased risk for bladder cancer or in association with p53 mutation status in bladder tumors, we screened for polymorphisms at XPD codons 751 and XRCC1 codon 399 in DNA isolated from blood of 194 bladder cancer patients and 313 healthy controls and for mutations in exons 4 to 8 of the p53 gene in bladder tumor DNA from 174 bladder cancer patients. There was a significantly higher prevalence of the XPD 751 Gln allele among the bladder cancer group, compared with the control group. No association was found between bladder cancer risk and the XRCC1 399 polymorphism. p53 mutations were found in 20.1% (35/174) patients. There was no difference in p53 mutation status among individuals with different genotypes. These results suggest that individuals who have the XPD 751 Gln allele may be at an increased risk for bladder cancer, although this may not lead to an increased risk for mutations in the p53 gene.
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Affiliation(s)
- Weimin Gao
- The Institute of Environmental and Human Health (TIEHH) and Department of Environmental Toxicology, Texas Tech University, Lubbock, TX 79409, USA
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[The association of XPD G312A polymorphism with lung cancer risk: a meta-analysis]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2010; 13:526-32. [PMID: 20677654 PMCID: PMC6000690 DOI: 10.3779/j.issn.1009-3419.2010.05.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE It has been proven that close relation was existed between XPD polymorphism G312A and lung cancer risk. However, some of the results are not consistent. The aim of this study is to explore the impact of DNA repair gene XPD polymorphism G312A on lung cancer risk. METHODS The literatures eligible from PUBMED, EMBASE, CNKI and WANGFANG database were enrolled in the meta-analysis. Heterogeneity among combined studies was assessed. The pooled OR and 95%CI were calculated. The sensitivity analysis and the publication bias were evaluated by RevMan 5.0 and STATA 11.0. RESULTS There were 6554 cases and 8322 controls from 18 studies included in the meta-analysis. In total, individuals with 312A allele and 312AA genotype showed increased lung cancer risk (A vs. G: OR = 1.06, 95% CI: 1.00-1.12; AA vs. AG+GG: OR = 1.20, 95% CI: 1.06-1.36; AA vs. GG: OR = 1.19, 95% CI: 1.04-1.36). In Asians, individuals with 312AA genotype showed 6.15 fold and 6.20 fold increased lung cancer risk in recessive genetic model and homogenous contrast respectively (AA vs. AG+GG: OR = 7.15, 95% CI: 1.90-26.94; AA vs. GG: OR = 7.20, 95% CI: 1.91-27.15). In Caucasians, individuals with 312AA genotype showed a 15% increased lung cancer risk (OR = 1.15, 95% CI: 1.01-1.31). CONCLUSION XPD 312A allele is risk allele for lung cancer. Individuals with AA genotype have higher risk of lung cancer, especially in Asians.
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Meta-analysis of two ERCC2 (XPD) polymorphisms, Asp312Asn and Lys751Gln, in breast cancer. Breast Cancer Res Treat 2010; 124:531-41. [PMID: 20379847 DOI: 10.1007/s10549-010-0863-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Accepted: 03/19/2010] [Indexed: 10/19/2022]
Abstract
The excision repair cross-complementing group 2 gene (ERCC2) plays a key role in DNA repair. Several polymorphisms in the ERCC2 gene have been described, including the commonly occurring Lys751Gln and Asp312Asn polymorphisms. Studies investigating the association of these polymorphisms with breast cancer risk produced controversial results. To evaluate these associations presented in diverse populations, we have conducted a meta-analysis based on 40 studies from 33 publications in PubMed which included analyses of Lys751Gln (14,545 cases, 15,352 controls) and Asp312Asn polymorphisms (16,254 cases, 14,006 controls). Overall findings of both polymorphisms have implicated null effects (OR = 1.01-1.03) when the analyses were limited to the statistically powerful (≥80%) studies. Although modestly increased statistically significant breast cancer risk was detected in the underpowered studies (≤80%), removal of outliers resulted in null associations. Ethnic stratification showed non-significant and relatively null associations for both polymorphisms with breast cancer risk for the overall Caucasians as well as North American and the European sub-populations. Although statistically increased and decreased risks were observed for the homogenous populations of African-Americans (Lys751Gln, OR 1.25, 95% CI 1.03-1.53, P = 0.03) and Asians (Asp312Asn, ORs: 0.53-0.55, P values: 0.02-0.03), respectively, this may be the result of small sample size. Analyses of the homogeneous adduct studies, with relatively large sample size, exhibited increased risk for Lys751Gln (OR 1.20, 95% CI (1.02-1.41), P = 0.03) and Asp312Asn (OR 1.17 95% CI 1.02-1.34, P = 0.03) under the dominant genetic model. In conclusion, our results suggest null associations of both polymorphisms in the overall and the Caucasian subgroups, although some effects can be suggested for relatively smaller minority studies. Increased risk effect was more visible when the adduct studies are considered, suggesting the role of these polymorphisms in the presence of exposure to DNA damaging agents.
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Yao L, Qiu LX, Yu L, Yang Z, Yu XJ, Zhong Y, Hu XC, Yu L. The association between ERCC2 Asp312Asn polymorphism and breast cancer risk: a meta-analysis involving 22,766 subjects. Breast Cancer Res Treat 2010; 123:227-31. [DOI: 10.1007/s10549-010-0754-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Accepted: 01/18/2010] [Indexed: 01/22/2023]
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Long XD, Ma Y, Zhou YF, Yao JG, Ban FZ, Huang YZ, Huang BC. XPD codon 312 and 751 polymorphisms, and AFB1 exposure, and hepatocellular carcinoma risk. BMC Cancer 2009; 9:400. [PMID: 19919686 PMCID: PMC2781019 DOI: 10.1186/1471-2407-9-400] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Accepted: 11/17/2009] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Genetic polymorphisms in DNA repair genes may influence individual variation in DNA repair capacity, which may be associated with risk of hepatocellular carcinoma (HCC) related to the exposure of aflatoxin B1 (AFB1). In this study, we have focused on the polymorphisms of xeroderma pigmentosum complementation group D (XPD) codon 312 and 751 (namely Asp312Asn and Lys751Gln), involved in nucleotide excision repair. METHODS We conducted a case-control study including 618 HCC cases and 712 controls to evaluate the associations between these two polymorphisms and HCC risk for Guangxi population by means of TaqMan-PCR and PCR-RFLP analysis. RESULTS We found that individuals featuring the XPD genotypes with codon 751 Gln alleles (namely XPD-LG or XPD-GG) were related to an elevated risk of HCC compared to those with the homozygote of XPD codon 751 Lys alleles [namely XPD-LL, adjusted odds ratios (ORs) were 1.75 and 2.47; 95% confidence interval (CIs) were 1.30-2.37 and 1.62-3.76, respectively]. A gender-specific role was evident that showed an higher risk for women (adjusted OR was 8.58 for XPD-GG) than for men (adjusted OR = 2.90 for XPD-GG). Interestingly, the interactive effects of this polymorphism and AFB1-exposure information showed the codon 751 Gln alleles increase the risk of HCC for individuals facing longer exposure years (Pinteraction = 0.011, OR = 0.85). For example, long-exposure-years (> 48 years) individuals who carried XDP-GG had an adjusted OR of 470.25, whereas long-exposure-years people with XDP-LL were at lower risk (adjusted OR = 149.12). However, we did not find that XPD codon 312 polymorphism was significantly associated with HCC risk. CONCLUSION These findings suggest that XPD Lys751Gln polymorphism is an important modulator of AFB1 related-HCC development in Guangxi population.
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Affiliation(s)
- Xi Dai Long
- Department of Pathology, Youjiang Medical College for Nationalities, Baise, Guangxi Zhuang Autonomous Region, PR China.
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Hines RN, Sargent D, Autrup H, Birnbaum LS, Brent RL, Doerrer NG, Cohen Hubal EA, Juberg DR, Laurent C, Luebke R, Olejniczak K, Portier CJ, Slikker W. Approaches for assessing risks to sensitive populations: lessons learned from evaluating risks in the pediatric population. Toxicol Sci 2009; 113:4-26. [PMID: 19770482 DOI: 10.1093/toxsci/kfp217] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Assessing the risk profiles of potentially sensitive populations requires a "tool chest" of methodological approaches to adequately characterize and evaluate these populations. At present, there is an extensive body of literature on methodologies that apply to the evaluation of the pediatric population. The Health and Environmental Sciences Institute Subcommittee on Risk Assessment of Sensitive Populations evaluated key references in the area of pediatric risk to identify a spectrum of methodological approaches. These approaches are considered in this article for their potential to be extrapolated for the identification and assessment of other sensitive populations. Recommendations as to future research needs and/or alternate methodological considerations are also made.
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Affiliation(s)
- Ronald N Hines
- Medical College of Wisconsin, Department of Pediatrics, Children's Research Institute, Children's Hospital and Health Systems, Milwaukee, Wisconsin 53226-4801, USA
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Ganster C, Neesen J, Zehetmayer S, Jäger U, Esterbauer H, Mannhalter C, Kluge B, Fonatsch C. DNA repair polymorphisms associated with cytogenetic subgroups in B-cell chronic lymphocytic leukemia. Genes Chromosomes Cancer 2009; 48:760-7. [DOI: 10.1002/gcc.20680] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Polosak J, Roszkowska-Gancarz M, Kurylowicz A, Owczarz M, Dobosz P, Mossakowska M, Szybinska A, Puzianowska-Kuznicka M. Decreased expression and the Lys751Gln polymorphism of the XPD gene are associated with extreme longevity. Biogerontology 2009; 11:287-97. [PMID: 19707883 DOI: 10.1007/s10522-009-9246-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2009] [Accepted: 08/13/2009] [Indexed: 01/07/2023]
Abstract
Aging is associated with progressing genomic instability. The XPD gene encodes a DNA helicase involved in nucleotide excision repair and in transcription. We analyzed the common XPD polymorphisms that were previously shown to affect protein's DNA repair efficiency and to increase the risk of developing various cancers. Analysis was performed in 149 centenarians (mean age 101.1 years old) and in 413 young subjects (mean age 27.1 years old). We showed that the distribution of the Lys751Gln genotypes differed significantly between these groups (P = 0.017). In centenarians, the homozygous genotypes AA and CC were found less frequently than in young controls (29 vs. 36%, OR = 0.71, and 14 vs. 20%, OR = 0.652, respectively). The Arg156Arg and Asp312Asn were not significantly associated with extreme longevity. Analysis of the XPD mRNA level in blood mononuclear cells of people divided into three age groups (mean ages 28.7, 65.8 and 92.7 years old) showed that extreme longevity is associated with the decrease of the mean level of the specific mRNA; the differences between young or middle-aged vs. extremely old group were significant (P < 0.0001, P < 0.0001, respectively). In addition, the methylation pattern of the XPD promoter was analyzed in 30 people divided into three age groups (29.5, 65.9, and 101.4 years old). We showed that overall methylation of the XPD promoter is a rare event; however, aging is associated with the increase of methylation level upstream of the transcription start site. In summary, we showed for the first time that both the XPD polymorphic variants and the decreased level of its expression might be associated with aging.
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Affiliation(s)
- Jacek Polosak
- Department of Biochemistry and Molecular Biology, Medical Center of Postgraduate Education, Warsaw, Poland
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