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Ren J, Wang Y, Liu C, Yang L, Men X, Qiu Z. Correlation analysis of clinical, pathological, imaging and genetic features of ground-glass nodule featured lung adenocarcinomas between high-risk and non-high-risk individuals. Eur J Med Res 2023; 28:478. [PMID: 37924162 PMCID: PMC10625210 DOI: 10.1186/s40001-023-01462-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 10/19/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Early stage lung adenocarcinomas manifested as ground-glass nodules (GGNs) are increasingly being detected, but screening and diagnosis for GGN-featured lung adenocarcinomas in different risk populations reach no agreement. OBJECTIVES To analyze the clinical, pathological, imaging and genetic features of GGN-featured lung adenocarcinomas on high-resolution computed tomography (HRCT) in different risk groups. METHODS Include patients with GGNs on HRCT surgically diagnosed as lung adenocarcinoma in the West China Hospital, Sichuan University from 2009 to 2021, and their clinical, pathological, imaging and gene sequencing data. RESULTS According to Chinese Expert Consensus on Screening and Management of Lung Cancer, 1,800 patients with GGN-featured lung adenocarcinoma, 545 males (incl. 269 smokers) and 1,255 females (incl. 16 smokers), were divided into high-risk (509) and non-high-risk (1,291) groups. Among them, 1,095 were detected via physical examination. The mean age at diagnosis was 54.78 (23-84) and the mean time from detection to diagnosis was 9.59 months. There were more males than females in the high-risk group [288 (56.58%) vs 221 (43.42%)], just the opposite in the non-high-risk group [1,034 (80.09%) vs 257 (19.91%)] (both P < 0.001). No statistical difference was found in GGN detection way (P > 0.05). The frequency of invasive adenocarcinoma was higher in the high-risk group, while those of precursor lesions and minimally invasive adenocarcinoma were higher in the non-high-risk group (all P < 0.001). The preoperative follow-up time in the non-high-risk group was shorter (P < 0.05). A total of 711 gene mutations were observed in 473 patients with a ratio of non-high-risk to high-risk of 494:217. The incidence of EGFR mutation was not statistically significant (P = 0.824), while those of TP53 and KRAS mutations were higher in the high-risk group (P < 0.05). CONCLUSIONS GGN-featured lung adenocarcinoma is dominated by non-high-risk female patients. Shorter preoperative follow-up in the non-high-risk group and no statistical difference in GGN detection way suggests the existing screening criteria for high-risk population may not suit GGN-featured lung cancer. In addition, the incidences of KRAS and TP53 mutations are higher in the high-risk group.
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Affiliation(s)
- Jing Ren
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- The Integrated Care Management Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yuan Wang
- Department of Pulmonary and Critical Care Medicine/Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Chunrong Liu
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lan Yang
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Xinlu Men
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Outpatient Department, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Zhixin Qiu
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, Precision Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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Nakano S, Yamaji T, Katagiri R, Sawada N, Inoue M, Tsugane S, Iwasaki M. p53 Arg72Pro polymorphism, adiposity status, and cancer risk: Two case-cohorts within a Japanese prospective study. Cancer Sci 2022; 113:4385-4393. [PMID: 36083231 DOI: 10.1111/cas.15572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/25/2022] [Accepted: 09/01/2022] [Indexed: 12/15/2022] Open
Abstract
The tumor suppressor protein, p53, is a critical molecule involved in cancer development. However, the association between p53 Arg72Pro polymorphism and cancer risk remains unclear, possibly due to the pro-tumor potential of p53 under metabolic stress. Here, we hypothesized that the p53 Arg72Pro polymorphism plays different roles during tumorigenesis by adiposity status. We measured baseline body mass index (BMI) and p53 Arg72Pro polymorphism for two case-cohorts, which included 4264 cancers with up to 20 years of follow-up. Multivariable-adjusted hazard ratios (HRs) and confidence intervals (CIs) were estimated using weighted Cox proportional-hazards method. Without consideration of adiposity status, p53 Arg72Pro polymorphism was not associated with cancer risk. However, proline (Pro) homozygous genotype conferred an increased cancer risk for individuals with a BMI <25 kg/m2 (HR [95% CI]: 1.12 [1.00-1.26] for total cancer and 1.19 [1.02-1.38] for obesity-related cancer), but not for those with a BMI ≥ 25 kg/m2 . The heterogeneous effect of p53 Arg72Pro polymorphism on cancer risk according to adiposity status was indicated (pheterogeneity : 0.07 for total cancer and 0.03 for obesity-related cancer). Furthermore, the association between overweight and cancer risk was only observed in arginine (Arg) carriers, but not in Pro homozygous carriers (pheterogeneity : 0.07 for total cancer and 0.02 for obesity-related cancer). Pro homozygous carriers were more likely to be predisposed to cancer than Arg carriers with normal-weight conditions. In addition, overweight was related to a higher cancer risk in Arg carriers than Pro homozygous carriers. Our findings may suggest the adiposity-dependent dual effects of p53 Arg72Pro polymorphism during tumorigenesis.
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Affiliation(s)
- Shiori Nakano
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Taiki Yamaji
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Ryoko Katagiri
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Norie Sawada
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Manami Inoue
- Division of Prevention, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Shoichiro Tsugane
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan.,National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Motoki Iwasaki
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
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3
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PCR-RFLP genotyping analysis of TP53 Arg72Pro polymorphism and susceptibility to esophageal cancer in Pakistani population. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Zhao Y, Varn FS, Cai G, Xiao F, Amos CI, Cheng C. A P53-Deficiency Gene Signature Predicts Recurrence Risk of Patients with Early-Stage Lung Adenocarcinoma. Cancer Epidemiol Biomarkers Prev 2017; 27:86-95. [PMID: 29141854 DOI: 10.1158/1055-9965.epi-17-0478] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/17/2017] [Accepted: 10/23/2017] [Indexed: 12/24/2022] Open
Abstract
Background: Lung cancer is associated with the highest mortality rate of all cancer types, and the most common histologic subtype of lung cancer is adenocarcinoma. To apply more effective therapeutic treatment, molecular markers that are able to predict the recurrence risk of patients with adenocarcinoma are critically needed. Mutations in TP53 tumor suppressor gene have been found in approximately 50% of lung adenocarcinoma cases, but the presence of a TP53 mutation does not always associate with increased mortality.Methods: The Cancer Genome Atlas RNA sequencing data of lung adenocarcinoma were used to define a novel gene signature for P53 deficiency. This signature was then used to calculate a sample-specific P53 deficiency score based on a patient's transcriptomic profile and tested in four independent lung adenocarcinoma microarray datasets.Results: In all datasets, P53 deficiency score was a significant predictor for recurrence-free survival where high P53 deficiency score was associated with poor survival. The score was prognostic even after adjusting for several key clinical variables including age, tumor stage, smoking status, and P53 mutation status. Furthermore, the score was able to predict recurrence-free survival in patients with stage I adenocarcinoma and was also associated with smoking status.Conclusions: The P53 deficiency score was a better predictor of recurrence-free survival compared with P53 mutation status and provided additional prognostic values to established clinical factors.Impact: The P53 deficiency score can be used to stratify early-stage patients into subgroups based on their risk of recurrence for aiding physicians to decide personalized therapeutic treatment. Cancer Epidemiol Biomarkers Prev; 27(1); 86-95. ©2017 AACR.
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Affiliation(s)
- Yanding Zhao
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Frederick S Varn
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Guoshuai Cai
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Feifei Xiao
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina
| | - Christopher I Amos
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire.,Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire.,Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Chao Cheng
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. .,Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire.,Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
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Liu C, Cui H, Gu D, Zhang M, Fang Y, Chen S, Tang M, Zhang B, Chen H. Genetic polymorphisms and lung cancer risk: Evidence from meta-analyses and genome-wide association studies. Lung Cancer 2017; 113:18-29. [PMID: 29110844 DOI: 10.1016/j.lungcan.2017.08.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/18/2017] [Accepted: 08/25/2017] [Indexed: 01/30/2023]
Abstract
A growing number of studies investigating the association between Single Nucleotide Polymorphisms (SNPs) and lung cancer risk have been published since over a decade ago. An updated integrative assessment on the credibility and strength of the associations is required. We searched PubMed, Medline, and Web of Science on or before August 29th, 2016. A total of 198 articles were deemed eligible for inclusion, which addressed the associations between 108 variants and lung cancer. Among the 108 variants, 63 were reported to be significantly associated with lung cancer while the remaining 45 were reported non-significant. Further evaluation integrating the Venice Criteria and false-positive report probability (FPRP) was performed to determine the strength of cumulative epidemiological evidence for the 63 significant associations. As a result, 15 SNPs on or near 12 genes and one miRNA with strong evidence of association with lung cancer risk were identified, including TERT (rs2736098), CHRNA3 (rs1051730), AGPHD1 (rs8034191), CLPTM1L (rs401681 and rs402710), BAT3 (rs3117582), TRNAA (rs4324798), ERCC2 (Lys751Gln), miR-146a2 (rs2910164), CYP1B1 (Arg48Gly), GSTM1 (null/present), SOD2 (C47T), IL-10 (-592C/A and -819C/T), and TP53 (intron 6). 19 SNPs were given moderate rating and 17 SNPs were rated as having weak evidence. In addition, all of the 29 SNPs identified in 12 genome-wide association studies (GWAS) were proved to be noteworthy based on FPRP value. This review summarizes and evaluates the cumulative evidence of genetic polymorphisms and lung cancer risk, which can serve as a general and useful reference for further genetic studies.
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Affiliation(s)
- Caiyang Liu
- Department of Cardiothoracic Surgery, First Affiliated Hospital of Chongqing Medical University, No.1, Youyi Road, Yuzhong District, Chongqing 400010, China
| | - Huijie Cui
- Division of Noncommunicable Disease Epidemiology, First Affiliated Hospital and Southwest School of Medicine, Third Military Medical University, Chongqing 400038, China
| | - Dongqing Gu
- Division of Noncommunicable Disease Epidemiology, First Affiliated Hospital and Southwest School of Medicine, Third Military Medical University, Chongqing 400038, China
| | - Min Zhang
- Division of Noncommunicable Disease Epidemiology, First Affiliated Hospital and Southwest School of Medicine, Third Military Medical University, Chongqing 400038, China
| | - Yanfei Fang
- Division of Noncommunicable Disease Epidemiology, First Affiliated Hospital and Southwest School of Medicine, Third Military Medical University, Chongqing 400038, China
| | - Siyu Chen
- Division of Noncommunicable Disease Epidemiology, First Affiliated Hospital and Southwest School of Medicine, Third Military Medical University, Chongqing 400038, China
| | - Mingshuang Tang
- Division of Noncommunicable Disease Epidemiology, First Affiliated Hospital and Southwest School of Medicine, Third Military Medical University, Chongqing 400038, China
| | - Ben Zhang
- Division of Noncommunicable Disease Epidemiology, First Affiliated Hospital and Southwest School of Medicine, Third Military Medical University, Chongqing 400038, China
| | - Huanwen Chen
- Department of Cardiothoracic Surgery, First Affiliated Hospital of Chongqing Medical University, No.1, Youyi Road, Yuzhong District, Chongqing 400010, China.
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López-Cortés A, Guerrero S, Redal MA, Alvarado AT, Quiñones LA. State of Art of Cancer Pharmacogenomics in Latin American Populations. Int J Mol Sci 2017; 18:E639. [PMID: 28545225 PMCID: PMC5485925 DOI: 10.3390/ijms18060639] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 03/07/2017] [Accepted: 03/10/2017] [Indexed: 12/22/2022] Open
Abstract
Over the past decades, several studies have shown that tumor-related somatic and germline alterations predicts tumor prognosis, drug response and toxicity. Latin American populations present a vast geno-phenotypic diversity due to the great interethnic and interracial mixing. This genetic flow leads to the appearance of complex characteristics that allow individuals to adapt to endemic environments, such as high altitude or extreme tropical weather. These genetic changes, most of them subtle and unexplored, could establish a mutational profile to develop new pharmacogenomic therapies specific for Latin American populations. In this review, we present the current status of research on somatic and germline alterations in Latin America compared to those found in Caucasian and Asian populations.
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Affiliation(s)
- Andrés López-Cortés
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad Tecnológica Equinoccial, Quito 170527, Ecuador.
| | - Santiago Guerrero
- Gene Regulation, Stem Cells and Cancer Programme, Centre for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology, Universitat Pompeu Fabra (UPF), Barcelona 08003, Spain.
| | - María Ana Redal
- Instituto de Fisiopatología y Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Centro de Diagnóstico Molecular, MEDgenomica, Buenos Aires 1000-1499, Argentina.
| | - Angel Tito Alvarado
- Unidad de Bioequivalencia y Medicina Personalizada, Facultad de Medicina, Universidad de San Martín de Porres, Lima 12, Peru.
| | - Luis Abel Quiñones
- Laboratory of Chemical Carcinogenesis and Pharmacogenetics, Department of Basic-Clinical Oncology, Faculty of Medicine, University of Chile, Santiago 70111, Chile.
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Ada AO, Bilgen S, Karacaoglan V, Kunak CS, Soydas E, Alpar S, Gulhan M, Iscan M. Association between the TP53 and CYP2E1*5B gene polymorphisms and non-small cell lung cancer. Arh Hig Rada Toksikol 2016; 67:311-316. [PMID: 28033105 DOI: 10.1515/aiht-2016-67-2812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 12/01/2016] [Indexed: 02/07/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most common form of lung cancer. Genetic polymorphisms in tumour suppressor genes and genes encoding xenobiotic metabolising enzymes alter the activity of their corresponding enzymes and are important individual susceptibility factors for NSCLC. Because of the lack of information in literature, the aim of our study was to investigate the role of the tumour suppressor gene TP53 (Arg72Pro) and the xenobiotic metabolising CYP2E1*5B gene polymorphisms on the risk of NSCLC development. The study population consisted of 172 patients and 172 controls (156 men and 16 women in each group). Genetic polymorphisms were determined with real-time polymerase chain reaction (PCR) and PCR restriction fragment length polymorphism (PCR-RFLP). Multivariate analysis showed a significant association with NSCLC for the combination between the TP53 codon72 Arg/Pro and the Pro/Pro genotypes (OR 2.21, 95 % CI 1.390-3.51; p=0.001). We also analysed whether combinations of these gene variants with GSTM1, GSTT1, GSTP1 exon 5 (Ile105Val), and GSTP1 exon 6 (Ala114Val) gene polymorphisms were associated with the NSCLC risk. A significant increase in the risk was observed for the following combinations: TP53 codon72 variant with GSTM1 null (OR 2.22, 95 % CI 1.23-4.04; p=0.009), GSTT1 null (OR 2.98, 95 % CI 1.49-5.94; p=0.002), and GSTP1 (Ala114Val) variant genotypes (OR 3.38, 95 % CI 1.54-7.41; p=0.002). Further studies with larger samples are needed to verify these findings.
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Xu C, Tang P, Ding C, Li C, Chen J, Xu Z, Mao Y, Wu M, Zhao J. Vitamin D Receptor Gene FOKI Polymorphism Contributes to Increasing the Risk of HIV-Negative Tuberculosis: Evidence from a Meta-Analysis. PLoS One 2015; 10:e0140634. [PMID: 26485279 PMCID: PMC4618110 DOI: 10.1371/journal.pone.0140634] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 09/29/2015] [Indexed: 12/15/2022] Open
Abstract
Background Vitamin D receptor (VDR) gene FokI polymorphism have been studied in relation to tuberculosis (TB) in many populations and provided inconsistent results. In this study, we carried out a meta-analysis to derive a more reliable assessment on FokI polymorphism and the risk of HIV-negative TB. Methods The Embase, PubMed, and Cochrane Library databases were used to undertake a comprehensive systematic literature review of all current published VDR gene FOKI association studies aimed at the risk of TB up to June 30, 2015. Odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) were used to measure the strength of the models. Results A total of 14 studies (1,668 cases and 1,893 controls) were retrieved in the meta-analysis. The pooled OR was 1.60 (95% = 1.28–1.97, P<0.001; I2 = 29.5%, and P = 0.141 for heterogeneity) in the best genetic model (recessive model: ff vs. fF+FF). In the subgroup analysis by ethnicities, a significantly increased risk was found in the Asian group (OR = 1.82, 95% CI = 1.42–2.33, P<0.001; I2 = 31.0%, and P = 0.150 for heterogeneity) in the recessive model. Similarly, significant associations were also found in the polymerase chain reaction-restriction fragment length polymorphism group, high-quality studies, and the population based or hospital based groups. Moderate heterogeneity was found in this study. Conclusion Our results suggested that VDR FokI polymorphism contributes to increasing the risk of TB in HIV-negative individuals, especially in the Asian region. Further studies on this topic in other races are expected to be conducted in future.
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Affiliation(s)
- Chun Xu
- Department of Cardiothoracic Surgery, The First Hospital Affiliated to Soochow University, Soochow, Jiangsu, People's Republic of China
| | - Peijun Tang
- Department of Tuberculosis, The Affiliated Infectious Hospital of Soochow University, Soochow, Jiangsu, People's Republic of China
| | - Cheng Ding
- Department of Cardiothoracic Surgery, The First Hospital Affiliated to Soochow University, Soochow, Jiangsu, People's Republic of China
| | - Chang Li
- Department of Cardiothoracic Surgery, The First Hospital Affiliated to Soochow University, Soochow, Jiangsu, People's Republic of China
| | - Jun Chen
- Department of Cardiothoracic Surgery, The First Hospital Affiliated to Soochow University, Soochow, Jiangsu, People's Republic of China
| | - Zhenlei Xu
- Department of Cardiothoracic Surgery, The First Hospital Affiliated to Soochow University, Soochow, Jiangsu, People's Republic of China
| | - Yi Mao
- Department of Cardiothoracic Surgery, The First Hospital Affiliated to Soochow University, Soochow, Jiangsu, People's Republic of China
| | - Meiying Wu
- Department of Tuberculosis, The Affiliated Infectious Hospital of Soochow University, Soochow, Jiangsu, People's Republic of China
- * E-mail: (JZ); (MW)
| | - Jun Zhao
- Department of Cardiothoracic Surgery, The First Hospital Affiliated to Soochow University, Soochow, Jiangsu, People's Republic of China
- * E-mail: (JZ); (MW)
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Ruan XL, Li S, Geng P, Zeng XT, Yu GZ, Meng XY, Gao QP, Ao XB. Association Between TP53 Gene Codon 72 Polymorphism and Acute Myeloid Leukemia Susceptibility: Evidence Based on a Meta-Analysis. Med Sci Monit 2015; 21:3048-53. [PMID: 26451982 PMCID: PMC4603608 DOI: 10.12659/msm.894625] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Background Many studies have reported that the p53 codon 72 polymorphism is associated with acute myeloid leukemia (AML) susceptibility; however, the conclusions are inconsistent. Therefore, we performed this meta-analysis to obtain a more precise result. Material/Methods We searched PubMed to identify relevant studies, and 6 published case-control studies were retrieved, including 924 AML patients and 3832 controls. Odds ratio (OR) with corresponding 95% confidence interval (95%CI) was applied to assess the association between p53 codon 72 polymorphism and AML susceptibility. The meta-analysis was performed with Comprehensive Meta-Analysis software, version 2.2. Results Overall, no significant association between p53 codon 72 polymorphism and AML susceptibility was found in this meta-analysis (Pro vs. Arg: OR=0.94, 95%CI=0.81–1.10; Pro/Pro vs. Arg/Arg: OR=0.93, 95%CI=0.71–1.22; Arg/Pro vs. Arg/Arg: OR=0.79, 95%CI=0.55–1.13; (Pro/Pro + Arg/Pro) vs. Arg/Arg: OR=0.84, 95%CI=0.62–1.13; Pro/Pro vs. (Arg/Arg + Arg/Pro): OR=1.06, 95%CI=0.83–1.35). Similar results were also found in stratified analysis according to ethnicity and source of controls. Conclusions Our meta-analysis demonstrates that p53 codon 72 polymorphism may not be a risk factor for AML, which should be verified in future studies.
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Affiliation(s)
- Xiao-Lan Ruan
- Department of Hematology, Targeted Biotherapy Key Laboratory of Ministry of Education, Renmin Hospital of Wuhan University, Wuhan, Hubei, China (mainland)
| | - Sheng Li
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Peiliang Geng
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital, Wuhan University, Wuhan, China (mainland)
| | - Xian-Tao Zeng
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Guo-Zheng Yu
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Xiang-Yu Meng
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Qing-Ping Gao
- Department of Hematology, Targeted Biotherapy Key Laboratory of Ministry of Education, Renmin Hospital of Wuhan University, Wuhan, Hubei, China (mainland)
| | - Xu-Bin Ao
- Department of Hematology, Targeted Biotherapy Key Laboratory of Ministry of Education, Renmin Hospital of Wuhan University, Wuhan, Hubei, China (mainland)
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Bianco A, Chiefari E, Nobile CGA, Foti D, Pavia M, Brunetti A. The Association between HMGA1 rs146052672 Variant and Type 2 Diabetes: A Transethnic Meta-Analysis. PLoS One 2015; 10:e0136077. [PMID: 26296198 PMCID: PMC4546600 DOI: 10.1371/journal.pone.0136077] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 07/29/2015] [Indexed: 12/16/2022] Open
Abstract
The high-mobility group A1 (HMGA1) gene has been previously identified as a potential novel candidate gene for susceptibility to insulin resistance and type 2 diabetes (T2D) mellitus. For this reason, several studies have been conducted in recent years examining the association of the HMGA1 gene variant rs146052672 (also designated IVS5-13insC) with T2D. Because of non-univocal data and non-overlapping results among laboratories, we conducted the current meta-analysis with the aim to yield a more precise and reliable conclusion for this association. Using predetermined inclusion criteria, MEDLINE, PubMed, Web of Science, Scopus, Google Scholar and Embase were searched for all relevant available literature published until November 2014. Two of the authors independently evaluated the quality of the included studies and extracted the data. Values from the single studies were combined to determine the meta-analysis pooled estimates. Heterogeneity and publication bias were also examined. Among the articles reviewed, five studies (for a total of 13,789 cases and 13,460 controls) met the predetermined criteria for inclusion in this meta-analysis. The combined adjusted odds ratio estimates revealed that the rs146052672 variant genotype had an overall statistically significant effect on increasing the risk of development of T2D. As most of the study subjects were Caucasian, further studies are needed to establish whether the association of this variant with an increased risk of T2D is generalizable to other populations. Also, in the light of this result, it would appear to be highly desirable that further in-depth investigations should be undertaken to elucidate the biological significance of the HMGA1 rs146052672 variant.
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Affiliation(s)
- Aida Bianco
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Eusebio Chiefari
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Carmelo G. A. Nobile
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Daniela Foti
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Maria Pavia
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Antonio Brunetti
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
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Cui JW, Li W, Han FJ, Liu YD. Screening for lung cancer using low-dose computed tomography: concerns about the application in low-risk individuals. Transl Lung Cancer Res 2015. [PMID: 26207215 DOI: 10.3978/j.issn.2218-6751.2015.02.05] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Low-dose computed tomography (LDCT) has been increasingly accepted as an efficient screening method for high-risk individuals to reduce lung cancer mortality. However, there remains a gap of knowledge in the practical implementation of screening on a larger scale, especially for low-risk individuals. The aim of this study is to initiate discussion through an evidence-based analysis and provide valuable suggestions on LDCT screening for lung cancer in clinical practice. Among previously published randomized controlled trials (RCTs), the National Lung Screening Trial (NLST) is the only one demonstrating positive results in a high-risk population of old age and heavy smokers. It is also shown that the potential harms include false-positive findings, radiation exposure etc., but its magnitude is uncertain. In the meantime, the current risk stratification system is inadequate, and is difficult to define selection criteria. Thus, the efficacy of LDCT in lung cancer screening needs to be confirmed in future trials, and the procedure should not be proposed to individuals without comparable risk to those in the NLST. Furthermore, there is a lack of evidence to support the expansion of LDCT screening to low-risk individuals. Therefore, recommendation of LDCT screening for these patients could be premature in clinical practice although some of them might be missed based on current definition of risk factors. Further studies and advances in risk assessment tools are urgently needed to address the concerns about lung cancer screening in order to improve the outcomes of lung cancer.
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Affiliation(s)
- Jiu-Wei Cui
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Wei Li
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Fu-Jun Han
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Yu-Di Liu
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
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Wu Z, Sun Y, Tang S, Liu C, Zhu S, Wei L, Xu H. AXIN2 rs2240308 polymorphism contributes to increased cancer risk: evidence based on a meta-analysis. Cancer Cell Int 2015; 15:68. [PMID: 26161041 PMCID: PMC4496878 DOI: 10.1186/s12935-015-0219-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 06/22/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Variants in the axis inhibition 2 (AXIN2) gene might alter the protein's structure or function or create a multiprotein destruction complex in the Wnt signaling pathway and thus affect an individual's susceptibility to cancer. The objective of this study is to evaluate broadly the evidence available for the AXIN2 rs2240308 polymorphism and risk of cancer. METHODS A comprehensive literature search was undertaken for eligible studies in Embase, PubMed, and Cochrane Library up to Nov 30, 2014. Odds ratios (ORs) and the corresponding 95 % confidence intervals (CIs) were used to measure the strength of the models. RESULTS Eight articles (10 case-control studies with 1,502 cases and 1,590 controls) were included in this analysis. Overall, the AXIN2 rs2240308 polymorphism was associated with a significant increase in the risk of cancer (G allele vs. A allele: OR = 1.21, 95 % CI = 1.05-1.40, I (2) = 39.5 % and P Q = 0.094 for heterogeneity; GG vs. AA: OR = 1.30, 95 % CI = 1.04-1.63, I (2) = 35.9 % and P Q = 0.121 for heterogeneity; GG vs. GA + AA: OR = 1.36, 95 % CI = 1.17-1.58, I (2) = 19.5 % and P Q = 0.263 for heterogeneity). Asian populations showed similar results. Stratified analysis by cancer types indicated that the AXIN2 rs2240308 polymorphism increases the risk of lung cancer (G allele vs. A allele: OR = 1.36, 95 % CI = 1.17-1.59; GA vs. AA: OR = 1.43, 95 % CI = 1.01-2.02; GG vs. AA: OR = 1.93, 95 % CI = 1.36-2.75; GG + GA vs. AA: OR = 1.65, 95 % CI = 1.18-2.30; GG vs. GA + AA: OR = 1.45, 95 % CI = 1.18-1.79. All I (2) < 50 % and P Q > 0.100 for heterogeneity). CONCLUSIONS This study showed that the AXIN2 rs2240308 polymorphism contribute to increasing the risk of cancer, especially lung cancer in Asian populations.
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Affiliation(s)
- Zhitong Wu
- />Department of Clinical Laboratory, Guigang City People’s Hospital, 1 Zhongshan Middle Road, Guigang, 537100, Guangxi People’s Republic of China
| | - Yifan Sun
- />Department of Clinical Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, 32 Jiefang North Road, Liuzhou, 545001, Guangxi People’s Republic of China
| | - Shifu Tang
- />Department of Clinical Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, 32 Jiefang North Road, Liuzhou, 545001, Guangxi People’s Republic of China
| | - Chunming Liu
- />Department of Clinical Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, 32 Jiefang North Road, Liuzhou, 545001, Guangxi People’s Republic of China
| | - Shengbo Zhu
- />Department of Clinical Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, 32 Jiefang North Road, Liuzhou, 545001, Guangxi People’s Republic of China
| | - Lili Wei
- />Department of Science and Education, Liuzhou Hospital of Traditional Chinese Medicine, 32 Jiefang North Road, Liuzhou, 545001, Guangxi People’s Republic of China
| | - Hong Xu
- />Department of Science and Education, Liuzhou Hospital of Traditional Chinese Medicine, 32 Jiefang North Road, Liuzhou, 545001, Guangxi People’s Republic of China
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Sun Y, Lu Y, Li T, Xie L, Deng Y, Li S, Qin X. Interferon Gamma +874T/A Polymorphism Increases the Risk of Hepatitis Virus-Related Diseases: Evidence from a Meta-Analysis. PLoS One 2015; 10:e0121168. [PMID: 25939029 PMCID: PMC4418602 DOI: 10.1371/journal.pone.0121168] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 01/28/2015] [Indexed: 02/06/2023] Open
Abstract
Background Interferon gamma (IFN-γ) is a key regulatory cytokine, which plays an important role in antiviral defense of an infected host. However, the association between the IFN-γ +874T/A gene polymorphism and hepatitis virus-related diseases is heterogeneous. Methods Based on the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement, a comprehensive literature search of eligible studies in Embase, Pubmed, and the Cochrane Library was undertaken through November 2014. Odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) were used to measure the strength of the models. Results Seventeen case-control articles, including 24 studies with 5503 individuals, met the inclusion criteria. The results indicated a statistically significant association between the IFN-γ +874T/A polymorphism and hepatitis virus—related diseases in a recessive gene model (AA vs. TT+TA: OR=1.350, 95% CI=1.101-1.657, P=0.004, I2%=54.3, and PQ=0.001 for heterogeneity), especially in Asians (OR=1.407, 95% CI=1.035-1.911, P=0.029, I2%=61.9, and PQ=0.005 for heterogeneity) and hepatitis B virus (HBV)–related disease (OR=1.486, 95% CI=1.195–1.849, P=0.000, I2%=40.4, and PQ=0.053 for heterogeneity). Conclusions The evidence suggests that the IFN-γ +874T/A polymorphism increases the risk of hepatitis virus—related diseases, especially in Asians and HBV—related diseases. Further studies on this topic in different ethnicities, especially genome-wide association studies, should be conducted to strengthen our results.
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Affiliation(s)
- Yifan Sun
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China
| | - Yu Lu
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China
| | - Taijie Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China
| | - Li Xie
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China
| | - Yan Deng
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China
| | - Shan Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China
| | - Xue Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China
- * E-mail:
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Sun Y, Lu Y, Pen Q, Li T, Xie L, Deng Y, Qin A. Interferon gamma +874 T/A polymorphism increases the risk of cervical cancer: evidence from a meta-analysis. Tumour Biol 2015; 36:4555-64. [PMID: 25649976 DOI: 10.1007/s13277-015-3100-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 04/01/2014] [Indexed: 02/02/2023] Open
Abstract
Data from previous studies about the association between interferon gamma (IFN-γ) +874 T/A (rs2430561) polymorphism and cervical cancer risk offer controversial results. To obtain a more dependable conclusion, this meta-analysis was performed. We selected eight articles including nine case-control studies with 1,116 cases and 1,290 controls, odds ratios (OR) with 95 % confidence intervals (CI) were used to assess the strength of the association. Subgroup analysis was carried out by ethnicity, source of controls, genotyping methods, and score of quality assessment. Our meta-analysis indicated that the IFN-γ (+874 T/A) polymorphism significantly increased the risk of cervical cancer in the codominant model (TA vs. TT: OR = 1.471, 95 % CI = 1.137-1.903, P = 0.003, I (2) % = 0.0, P Q = 0.785) and the dominant model (TA + AA vs. TT: OR = 1.399, 95 % CI = 1.097-1.784, P = 0.007, I (2) % = 0.0, P Q = 0.486) in the overall population. Stratified analysis by ethnicity indicated a significantly increased risk of cervical cancer in Asians in the codominant model (TA vs. TT: OR = 1.494, 95 % CI = 1.069-2.087, P = 0.019, I (2) % = 0.0, P Q = 0.440) and the dominant model (OR = 1.455, 95 % CI = 1.062-1.993, P = 0.019, I (2) % = 42.9, P Q = 0.154). Thus, the IFN-γ (+874 T/A) polymorphism is likely to increase the risk of cervical cancer. Because of the limited studies and sample sizes included in our meta-analysis, further well-designed and large-scale studies are demanded to confirm our results.
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Affiliation(s)
- Yifan Sun
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, Guangxi, People's Republic of China
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Zhang XJ, Feng XL, Huang Y, Gao Y, Cao ZY, Huang WL, Zhang Y, Jian QH, Zhong JC, Yang MT, Fan XM, Jin Z. Expression of miRNA-210 in gastric cancer cell lines and its function prediction. Shijie Huaren Xiaohua Zazhi 2015; 23:78-84. [DOI: 10.11569/wcjd.v23.i1.78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To screen microRNAs (miRNAs) associated with metastasis of gastric cancer (GC) by miRNA microarray and to explore the possible role of miRNA-210 in GC metastasis by bioinformatics.
METHODS: GC cell lines with low (RF1) or high metastatic potential (RF48) were used for miRNA expression profiling using human miRNA microarray. Expression of miRNA-210 in 7 GC cell lines was detected by RT-PCR. MiRNA-210 targets were obtained using miRWalk, and functions of these targets in GC were predicted with David online.
RESULTS: Compared with RF1 cells, 21 and 15 miRNAs were up-regulated and down-regulated in RF48 cells, respectively. Expression of miRNA-210 was further validated by real-time quantitative RT-PCR in multiple GC cell lines with different metastatic potential, which showed that miRNA-210 was overexpressed in GC cell lines with high metastatic potential. Bioinformatics analysis suggested that miRNA-210 was related with tumorgenesis and metastasis.
CONCLUSION: Screening miRNAs associated with metastasis lays a foundation for identifying early diagnostic markers and new therapeutic targets for GC metastasis. Expression profile of miRNAs associated with metastasis was obtained by miRNA microarray; dysregulated expression of miRNA-210 may be related with GC metastasis, and may serve as an early diagnostic biomarker and new treatment target.
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Tseng TS, Park JY, Zabaleta J, Moody-Thomas S, Sothern MS, Chen T, Evans DE, Lin HY. Role of nicotine dependence on the relationship between variants in the nicotinic receptor genes and risk of lung adenocarcinoma. PLoS One 2014; 9:e107268. [PMID: 25233467 PMCID: PMC4169410 DOI: 10.1371/journal.pone.0107268] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 08/14/2014] [Indexed: 12/27/2022] Open
Abstract
Several variations in the nicotinic receptor genes have been identified to be associated with both lung cancer risk and smoking in the genome-wide association (GWA) studies. However, the relationships among these three factors (genetic variants, nicotine dependence, and lung cancer) remain unclear. In an attempt to elucidate these relationships, we applied mediation analysis to quantify the impact of nicotine dependence on the association between the nicotinic receptor genetic variants and lung adenocarcinoma risk. We evaluated 23 single nucleotide polymorphisms (SNPs) in the five nicotinic receptor related genes (CHRNB3, CHRNA6, and CHRNA5/A3/B4) previously reported to be associated with lung cancer risk and smoking behavior and 14 SNPs in the four 'control' genes (TERT, CLPTM1L, CYP1A1, and TP53), which were not reported in the smoking GWA studies. A total of 661 lung adenocarcinoma cases and 1,347 controls with a smoking history, obtained from the Environment and Genetics in Lung Cancer Etiology case-control study, were included in the study. Results show that nicotine dependence is a mediator of the association between lung adenocarcinoma and gene variations in the regions of CHRNA5/A3/B4 and accounts for approximately 15% of this relationship. The top two CHRNA3 SNPs associated with the risk for lung adenocarcinoma were rs1051730 and rs12914385 (p-value = 1.9×10(-10) and 1.1×10(-10), respectively). Also, these two SNPs had significant indirect effects on lung adenocarcinoma risk through nicotine dependence (p = 0.003 and 0.007). Gene variations rs2736100 and rs2853676 in TERT and rs401681 and rs31489 in CLPTM1L had significant direct associations on lung adenocarcinoma without indirect effects through nicotine dependence. Our findings suggest that nicotine dependence plays an important role between genetic variants in the CHRNA5/A3/B4 region, especially CHRNA3, and lung adenocarcinoma. This may provide valuable information for understanding the pathogenesis of lung adenocarcinoma and for conducting personalized smoking cessation interventions.
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Affiliation(s)
- Tung-Sung Tseng
- Behavioral and Community Health Sciences, School of Public Health and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States of America
| | - Jong Y. Park
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States of America
| | - Jovanny Zabaleta
- Department of Pediatrics and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States of America
| | - Sarah Moody-Thomas
- Behavioral and Community Health Sciences, School of Public Health and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States of America
| | - Melinda S. Sothern
- Behavioral and Community Health Sciences, School of Public Health and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States of America
| | - Ted Chen
- Department of Global Community Health and Behavioral Sciences, Tulane University, New Orleans, LA, United States of America
| | - David E. Evans
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States of America
| | - Hui-Yi Lin
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States of America
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The rs7003908 (T>G) polymorphism in the XRCC7 gene and the risk of cancers. Mol Biol Rep 2014; 41:3577-82. [PMID: 24535266 DOI: 10.1007/s11033-014-3220-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 01/28/2014] [Indexed: 02/05/2023]
Abstract
The association between the rs7003908 (T>G) polymorphism in the XRCC7 gene and the risk of cancers had been widely studied; however, the results were inconsistent. The objective of the current study was to investigate the association between the rs7003908 polymorphism in the XRCC7 gene and the risk of cancers by meta-analysis. We searched PubMed, EMbase, CNKI and Wanfang databases; the last search was performed on January 10th, 2014. Statistical analysis was performed using the Revman4.2 and STATA10.0 softwares. A total of 3,684 cancer cases and 5,232 controls from 11 case-control studies were included for data analysis. In the dominant model analysis, the results suggested a lack of association between the polymorphism and the risk of cancers: OR 1.01, 95% CI 0.83-1.16, P = 0.70. In the subgroup analysis by ethnicity, no significant association was found either for Asians or Caucasians. In the subgroup analysis by cancer types, significant association was found for prostate cancer, but not for bladder cancer, breast cancer and glioma. In summary, the current meta-analysis confirmed that the rs7003908 polymorphism in the XRCC7 gene might be a risk factor for prostate cancer. In the future, more studies are needed to validate these results.
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