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Do Polymorphisms of the TERT, GSTM1, and GSTT1 Genes Increase Laryngeal Cancer Susceptibility in Smokers of Romanian Descent? Medicina (B Aires) 2022; 58:medicina58081106. [PMID: 36013573 PMCID: PMC9415364 DOI: 10.3390/medicina58081106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/17/2022] Open
Abstract
Background and Objectives: The aim of this study was to investigate the association between smoking status and single-nucleotide polymorphism in candidate genes that had a known association with smoking-related tumors in previous studies and to explore their link to laryngeal cancer risk in a population of northern Romanian descent. The genes selected have key functions in xenobiotic metabolism (GSTs: the glutathione S-transferases family: GSTM1 and GSTT1) and chromosomal management (TERT). Materials and Methods: The genotype frequencies of TERTRs2736100 and the GST subfamilies (GSTM1 and GSTT1) were determined using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique. The relationship between the polymorphisms and the risk of laryngeal cancer was analyzed in a retrospective case–control study of 92 laryngeal cancer cases and 101 controls, all of whom were smokers. Results: Subjects presenting the GSTT1-null variant had a two-fold increase in risk (OR = 2.05, 95% CI = 1.07–3.95, p = 0.02). While no individual risk was observed for the TERTRs2736100 polymorphism, stratification based on gender revealed a nine-fold increase in risk for carriers of the “C” allele in the heterozygote variant who were male (OR = 9, 65% CI = 3.51–26.51, p = 0.0000). Conclusions: The results showed that the GSTT1-null genotype and the mutant heterozygote variant of TERTRs2736100 genes may play a significant role in laryngeal cancer susceptibility in subjects of northern Romanian descent. There may be no association between the susceptibility to laryngeal carcinoma and the GSTM1 polymorphism. The results could not confirm the carcinogenic influence smoking has on laryngeal cancer development for the studied polymorphisms.
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Liu Y, Li Z, Tang X, Li M, Shi F. Association between hTERT Polymorphisms and Female Papillary Thyroid Carcinoma. Recent Pat Anticancer Drug Discov 2019; 14:268-279. [PMID: 31538903 DOI: 10.2174/1574892814666190919145453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 08/27/2019] [Accepted: 08/27/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND A previous genome-wide association study showed that hTERT rs10069690 and rs2736100 polymorphisms were associated with thyroid cancer risk. OBJECTIVE This study further investigated the association between increased risk and clinicopathologic characteristics for Papillary Thyroid Carcinoma (PTC) and hTERT polymorphisms rs10069690 or rs2736100 in a Chinese female population. METHODS The hTERT genotypes of 276 PTC patients and 345 healthy subjects were determined with regard to SNPs rs10069690 and rs2736100. The association between these SNPs and the risk of PTC and clinicopathologic characteristics was investigated by logistic regression. RESULTS We found a significant difference between PTC and rs10069690 (Odds Ratio (OR) = 1.515; P = 0.005), but not between PTC and rs2736100. When the analysis was limited to females, rs10069690 and rs2736100 were both associated with increased risk for PTC in female individuals (OR = 1.647, P = 0.007; OR = 1.339, P = 0.041, respectively). Further haplotype analysis revealed a stimulative effect of haplotypes TC and CA of TERT rs10069690-rs2736100, which increased risk for PTC in female individuals (OR = 1.579, P = 0.014; OR = 0.726, P = 0.025, respectively). Furthermore, the heterozygote A/C of rs2736100 showed significant difference for age (OR = 0.514, P = 0.047). CONCLUSION Our finding suggests that hTERT polymorphisms rs10069690 and rs2736100 are associated with increased risk for PTC in Chinese female population and rs2736100 may be related to age. Consistent with US20170360914 and US20170232075, they are expected to be a potential molecular target for anti-cancer therapy.
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Affiliation(s)
- Ying Liu
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410000, China
| | - Zhi Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.,Institute of Clinical Pharmacology, Central South University and Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China
| | - Xinyue Tang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.,Institute of Clinical Pharmacology, Central South University and Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China
| | - Min Li
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410000, China
| | - Feng Shi
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410000, China
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Trade-offs in aging lung diseases: a review on shared but opposite genetic risk variants in idiopathic pulmonary fibrosis, lung cancer and chronic obstructive pulmonary disease. Curr Opin Pulm Med 2019. [PMID: 29517586 PMCID: PMC5895171 DOI: 10.1097/mcp.0000000000000476] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW The process of aging involves biological changes that increases susceptibility for disease. In the aging lung disease IPF, GWAS studies identified genes associated with risk for disease. Recently, several of these genes were also found to be involved in risk for COPD or lung cancer. This review describes GWAS-derived risk genes for IPF that overlap with risk genes for lung cancer or COPD. RECENT FINDINGS Risk genes that overlap between aging lung diseases, include FAM13A, DSP and TERT. Most interestingly, disease predisposing alleles for IPF are opposite to those for COPD or lung cancer. Studies show that the alleles are associated with differential gene expression and with physiological traits in the general population. The opposite allelic effect sizes suggest the presence of trade-offs in the aging lung. For TERT, the trade-off involves cellular senescence versus proliferation and repair. For FAM13A and DSP, trade-offs may involve protection from noxious gases or tissue integrity. SUMMARY The overlap in risk genes in aging lung diseases provides evidence that processes associated with FAM13A, DSP and TERT are important for healthy aging. The opposite effect size of the disease risk alleles may represent trade-offs, for which a model involving an apicobasal gene expression gradient is presented.
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Abstract
PURPOSE OF REVIEW Genomic mutations in telomere-related genes have been recognized as a cause of familial forms of idiopathic pulmonary fibrosis (IPF). However, it has become increasingly clear that telomere syndromes and telomere shortening are associated with various types of pulmonary disease. Additionally, it was found that also single nucleotide polymorphisms (SNPs) in telomere-related genes are risk factors for the development of pulmonary disease. This review focuses on recent updates on pulmonary phenotypes associated with genetic variation in telomere-related genes. RECENT FINDINGS Genomic mutations in seven telomere-related genes cause pulmonary disease. Pulmonary phenotypes associated with these mutations range from many forms of pulmonary fibrosis to emphysema and pulmonary vascular disease. Telomere-related mutations account for up to 10% of sporadic IPF, 25% of familial IPF, 10% of connective-tissue disease-associated interstitial lung disease, and 1% of COPD. Mixed disease forms have also been found. Furthermore, SNPs in TERT, TERC, OBFC1, and RTEL1, as well as short telomere length, have been associated with several pulmonary diseases. Treatment of pulmonary disease caused by telomere-related gene variation is currently based on disease diagnosis and not on the underlying cause. SUMMARY Pulmonary phenotypes found in carriers of telomere-related gene mutations and SNPs are primarily pulmonary fibrosis, sometimes emphysema and rarely pulmonary vascular disease. Genotype-phenotype relations are weak, suggesting that environmental factors and genetic background of patients determine disease phenotypes to a large degree. A disease model is presented wherever genomic variation in telomere-related genes cause specific pulmonary disease phenotypes whenever triggered by environmental exposure, comorbidity, or unknown factors.
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The TERT rs2736100 polymorphism increases cancer risk: A meta-analysis. Oncotarget 2018; 8:38693-38705. [PMID: 28418878 PMCID: PMC5503564 DOI: 10.18632/oncotarget.16309] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 02/15/2017] [Indexed: 02/07/2023] Open
Abstract
Abnormal telomerase activity is implicated in cancer initiation and development. The rs2736100 T > G polymorphism in the telomerase reverse transcriptase (TERT) gene, which encodes the telomerase catalytic subunit, has been associated with increased cancer risk. We conducted a meta-analysis to more precisely assess this association. After a comprehensive literature search of the PubMed and EMBASE databases up to November 1, 2016, 61 articles with 72 studies comprising 108,248 cases and 161,472 controls were included in our meta-analysis. Studies were conducted on various cancer types. The TERT rs2736100 polymorphism was associated with increased overall cancer risk in five genetic models [homozygous model (GG vs. TT): odds ratio (OR) = 1.39, 95% confidence interval (95% CI) = 1.26-1.54, P < 0.001; heterozygous model (TG vs. TT): OR = 1.16, 95% CI = 1.11-1.23, P < 0.001; dominant model (TG + GG vs. TT): OR = 1.23, 95% CI = 1.15-1.31, P < 0.001; recessive model (GG vs. TG + TT): OR = 1.25, 95% CI = 1.16-1.35, P < 0.001; and allele contrast model (G vs. T): OR = 1.17, 95% CI = 1.12-1.23, P < 0.001]. A stratified analysis based on cancer type associated the polymorphism with elevated risk of thyroid cancer, bladder cancer, lung cancer, glioma, myeloproliferative neoplasms, and acute myeloid leukemia. Our results confirm that the TERT rs2736100 polymorphism confers increased overall cancer risk.
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Wang X, Ma K, Chi L, Cui J, Jin L, Hu JF, Li W. Combining Telomerase Reverse Transcriptase Genetic Variant rs2736100 with Epidemiologic Factors in the Prediction of Lung Cancer Susceptibility. J Cancer 2016; 7:846-53. [PMID: 27162544 PMCID: PMC4860802 DOI: 10.7150/jca.13437] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 03/15/2016] [Indexed: 01/01/2023] Open
Abstract
Genetic variants from a considerable number of susceptibility loci have been identified in association with cancer risk, but their interaction with epidemiologic factors in lung cancer remains to be defined. We sought to establish a forecasting model for identifying individuals with high-risk of lung cancer by combing gene single-nucleotide polymorphisms with epidemiologic factors. Genotyping and clinical data from 500 lung cancer cases and 500 controls were used for developing the logistic regression model. We found that lung cancer was associated with telomerase reverse transcriptase (TERT) rs2736100 single-nucleotide polymorphism. The TERT rs2736100 model was still significantly associated with lung cancer risk when combined with environmental and lifestyle factors, including lower education, lower BMI, COPD history, heavy cigarettes smoking, heavy cooking emission, and dietary factors (over-consumption of meat and deficiency in fish/shrimp, vegetables, dairy products, and soybean products). These data suggest that combining TERT SNP and epidemiologic factors may be a useful approach to discriminate high and low-risk individuals for lung cancer.
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Affiliation(s)
- Xu Wang
- 1. Cancer and Stem Cell Center, First Affiliated Hospital, Jilin University, Changchun, Jilin 130061, P.R. China.; 2. Stanford University Medical School Stanford, Palo Alto Veterans Institute for Research, Palo Alto, CA94305, USA
| | - Kewei Ma
- 1. Cancer and Stem Cell Center, First Affiliated Hospital, Jilin University, Changchun, Jilin 130061, P.R. China
| | - Lumei Chi
- 4. School of Public Health, Jilin University, Changchun 130021, Jilin, P. R. China
| | - Jiuwei Cui
- 1. Cancer and Stem Cell Center, First Affiliated Hospital, Jilin University, Changchun, Jilin 130061, P.R. China
| | - Lina Jin
- 3. Second Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun , Jilin 130033, P.R. China
| | - Ji-Fan Hu
- 1. Cancer and Stem Cell Center, First Affiliated Hospital, Jilin University, Changchun, Jilin 130061, P.R. China.; 2. Stanford University Medical School Stanford, Palo Alto Veterans Institute for Research, Palo Alto, CA94305, USA
| | - Wei Li
- 1. Cancer and Stem Cell Center, First Affiliated Hospital, Jilin University, Changchun, Jilin 130061, P.R. China
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Trifa AP, Bănescu C, Tevet M, Bojan A, Dima D, Urian L, Török-Vistai T, Popov VM, Zdrenghea M, Petrov L, Vasilache A, Murat M, Georgescu D, Popescu M, Pătrinoiu O, Balea M, Costache R, Coleș E, Șaguna C, Berbec N, Vlădăreanu AM, Mihăilă RG, Bumbea H, Cucuianu A, Popp RA. TERT rs2736100 A>C SNP and JAK2 46/1 haplotype significantly contribute to the occurrence of JAK2 V617F and CALR mutated myeloproliferative neoplasms - a multicentric study on 529 patients. Br J Haematol 2016; 174:218-26. [PMID: 27061303 DOI: 10.1111/bjh.14041] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 01/22/2016] [Indexed: 12/14/2022]
Abstract
Polycythaemia vera (PV), essential thrombocythaemia (ET) and primary myelofibrosis (PMF) represent typical myeloproliferative neoplasms (MPN), usually characterized by specific somatic driver mutations (JAK2 V617F, CALR and MPL). JAK2 46/1 haplotype and telomerase reverse transcriptase gene (TERT) rs2736100 A>C single nucleotide polymorphism (SNP) could represent a large fraction of the genetic predisposition seen in MPN. The rs10974944 C>G SNP, tagging the JAK2 46/1 haplotype, and the TERT rs2736100 A>C SNP were genotyped in 529 MPN patients with known JAK2 V617F, CALR and MPL status, and 433 controls. JAK2 46/1 haplotype strongly correlated to JAK2 V617F-positive MPN and, to a lesser extent, CALR-positive MPN. The TERT rs2736100 A>C SNP strongly correlated to all MPN, regardless of the phenotype (PV, ET or PMF) and major molecular subtype (JAK2 V617F- or CALR-positive). While both variants have a significant contribution, they have nuanced consequences, with JAK2 46/1 predisposing essentially to JAK2 V617F-positive MPN, and TERT rs2736100 A>C having a more general, non-specific effect on all MPN, regardless of phenotype or major molecular subtype.
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Affiliation(s)
- Adrian P Trifa
- Department of Medical Genetics, 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Department of Genetics, 'Ion Chiricuță' Cancer Institute, Cluj-Napoca, Romania
| | - Claudia Bănescu
- Department of Genetics, University of Medicine and Pharmacy, Tîrgu-Mureș, Romania
| | - Mihaela Tevet
- Department of Haematology, Colentina Hospital, Bucharest, Romania
| | - Anca Bojan
- Department of Haematology, 'Ion Chiricuță' Cancer Institute, Cluj-Napoca, Romania.,Department of Haematology, 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Delia Dima
- Department of Haematology, 'Ion Chiricuță' Cancer Institute, Cluj-Napoca, Romania
| | - Laura Urian
- Department of Haematology, 'Ion Chiricuță' Cancer Institute, Cluj-Napoca, Romania.,Department of Haematology, 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Tünde Török-Vistai
- Department of Haematology, 'Ion Chiricuță' Cancer Institute, Cluj-Napoca, Romania.,Department of Haematology, 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Viola M Popov
- Department of Haematology, Colentina Hospital, Bucharest, Romania
| | - Mihnea Zdrenghea
- Department of Haematology, 'Ion Chiricuță' Cancer Institute, Cluj-Napoca, Romania.,Department of Haematology, 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ljubomir Petrov
- Department of Haematology, 'Ion Chiricuță' Cancer Institute, Cluj-Napoca, Romania.,Department of Haematology, 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Anca Vasilache
- Department of Haematology, 'Ion Chiricuță' Cancer Institute, Cluj-Napoca, Romania
| | - Meilin Murat
- Department of Haematology, Colentina Hospital, Bucharest, Romania
| | | | - Mihaela Popescu
- Department of Haematology, Colentina Hospital, Bucharest, Romania
| | - Oana Pătrinoiu
- Department of Haematology, Colentina Hospital, Bucharest, Romania
| | - Marius Balea
- Department of Haematology, Colentina Hospital, Bucharest, Romania
| | - Roxana Costache
- Department of Medical Genetics, 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Elena Coleș
- Department of Haematology, Colțea Hospital, 'Carol Davila' University of Medicine and Pharmacy, Bucharest, Romania
| | - Carmen Șaguna
- Department of Haematology, Colțea Hospital, 'Carol Davila' University of Medicine and Pharmacy, Bucharest, Romania
| | - Nicoleta Berbec
- Department of Haematology, Colțea Hospital, 'Carol Davila' University of Medicine and Pharmacy, Bucharest, Romania
| | - Ana-Maria Vlădăreanu
- Department of Haematology, University Emergency Hospital, 'Carol Davila' University of Medicine and Pharmacy, Bucharest, Romania
| | - Romeo G Mihăilă
- Department of Haematology, Sibiu County Emergency Hospital, 'Lucian Blaga' University, Sibiu, Romania
| | - Horia Bumbea
- Department of Haematology, University Emergency Hospital, 'Carol Davila' University of Medicine and Pharmacy, Bucharest, Romania
| | - Andrei Cucuianu
- Department of Haematology, 'Ion Chiricuță' Cancer Institute, Cluj-Napoca, Romania.,Department of Haematology, 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Radu A Popp
- Department of Medical Genetics, 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Gu Y, Yu C, Miao L, Wang L, Xu C, Xue W, Du J, Yuan H, Dai J, Jin G, Hu Z, Ma H, Shen H. Telomere length, genetic variants and risk of squamous cell carcinoma of the head and neck in Southeast Chinese. Sci Rep 2016; 6:20675. [PMID: 26857734 PMCID: PMC4746643 DOI: 10.1038/srep20675] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 12/21/2015] [Indexed: 11/09/2022] Open
Abstract
Telomere dysfunction participates in malignant transformation and tumorigenesis. Previous studies have explored the associations between telomere length (TL) and cancer susceptibility; however, the findings are inconclusive. The associations between genetic variants and TL have been verified by quite a few genome-wide association studies (GWAS). Yet, to date, there was no published study on the relationship between TL, related genetic variants and susceptibility to squamous cell carcinoma of the head and neck (SCCHN) in Chinese. Hence, we detected relative telomere length (RTL) by using quantitative PCR and genotyped seven selected single nucleotide polymorphisms by TaqMan allelic discrimination assay in 510 SCCHN cases and 913 controls in southeast Chinese. The results showed that RTL was significantly associated with SCCHN risk [(adjusted odds ratio (OR) = 1.19, 95% confidence interval (CI) = 1.08–1.32, P = 0.001]. Furthermore, among seven selected SNPs, only G allele of rs2736100 related to RTL in Caucasians was significantly associated with both the decreased RTL (P = 0.002) and the increased susceptibility to SCCHN in Chinese (additive model: adjusted OR = 1.17, 95%CI = 1.00–1.38, P = 0.049). These findings provide evidence that shortened TL is a risk factor for SCCHN, and genetic variants can contribute to both TL and the susceptibility to SCCHN in southeast Chinese population.
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Affiliation(s)
- Yayun Gu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Chengxiao Yu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Limin Miao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China
| | - Lihua Wang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Chongquan Xu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Wenjie Xue
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jiangbo Du
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Hua Yuan
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China
| | - Juncheng Dai
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Guangfu Jin
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Zhibin Hu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Hongxia Ma
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Hongbing Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
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Jannuzzi AT, Karaman E, Oztas E, Yanar HT, Özhan G. Telomerase Reverse Transcriptase (TERT) Gene Variations and Susceptibility of Colorectal Cancer. Genet Test Mol Biomarkers 2015; 19:692-7. [PMID: 26501986 DOI: 10.1089/gtmb.2015.0150] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
AIM Colorectal cancer is the third most common cause of cancer-related mortality. Previous studies demonstrated increased telomerase activity in colorectal cancer tissue and suggested a prognostic value for patients with colorectal carcinoma. Telomerase reverse transcriptase (TERT), one of the main functional subunits of the telomerase, is an important factor in modulating telomerase activity, telomere length, and genomic stability. However, there are few studies that have addressed the association between genetic variation at TERT and the risk of colorectal cancer. METHOD We evaluated the influence of three common single-nucleotide polymorphisms (SNPs) of the TERT gene (rs2853669, rs2736100, rs2736098) on susceptibility to colorectal cancer in 104 patients and 135 controls in a Turkish population. RESULTS We observed that rs2736098 was significantly associated with increased risk of colorectal cancer (OR = 2.53; 95% CI = 1.26-5.10; p = 0.008). On the other hand, rs2736100 and rs2853669 showed no association with colorectal cancer (p ≥ 0.128). CONCLUSION These findings are the first results of TERT allele distributions in the Turkish population and also provide increased understanding with respect to colorectal cancer etiology.
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Affiliation(s)
- Ayse Tarbin Jannuzzi
- 1 Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University , Istanbul, Turkey
| | - Ecem Karaman
- 1 Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University , Istanbul, Turkey
| | - Ezgi Oztas
- 1 Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University , Istanbul, Turkey
| | - Hakan Teoman Yanar
- 2 Department of General Surgery, Faculty of Medicine, Istanbul University , Istanbul, Turkey
| | - Gül Özhan
- 1 Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University , Istanbul, Turkey
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Shiraishi K, Kohno T. Genetic Susceptibility to Lung Adenocarcinoma. Genes Environ 2014. [DOI: 10.3123/jemsge.2014.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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