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Alakuş H, Kaya M, Özer H, Eğilmez HR, Karadayı K. Nuclear factor erythroid-2-related factor 2 (Nrf2) is a potential prognostic factor in patients with gastric adenocarcinoma. Arab J Gastroenterol 2023; 24:5-10. [PMID: 36400701 DOI: 10.1016/j.ajg.2022.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 11/08/2020] [Accepted: 10/17/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Gastric cancer is one of the leading causes of cancer-related death, and many researchers are focused on the discovery and use of different biomarkers in prognosis prediction. The use of Nrf2 as a prognostic marker in patients with gastric cancer remains controversial. In this study, we evaluated the expression of Nrf2 protein in gastric adenocarcinoma. PATIENTS AND METHODS A total of 86 patients who underwent gastric resection and D2 lymph node dissection due to gastric adenocarcinoma were included. Clinicopathological characteristics, such as age, gender, gastrectomy type, pathologic T (pT) and N (pN) stages, tumor grade, tumor type per Lauren's classification, presence of lymphovascular invasion, and Nrf2 expression were evaluated. RESULTS While pT, pN, and Nrf-2 expression were found to be negative prognostic predictors for overall survival in one-way analysis of variance, Nrf-2 expression was the only significant negative prognostic predictor in multivariance analysis. pT, pN, diffuse type, high tumor grade, and Nrf-2 expression significantly affected overall survival in Kaplan-Meier survival analyses (p = 0.02, p = 0.03, p < 0.01, p = 0.027, and p = 0.001, respectively). CONCLUSIONS Our findings support that Nrf2 is a prognostic marker in patients with gastric adenocarcinoma. Anti-Nrf2 therapy options should be investigated to improve prognosis in gastric cancer patients.
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Affiliation(s)
- Hüseyin Alakuş
- Department of Surgical Oncology, Adiyaman University Faculty of Medicine, Adiyaman, Turkey.
| | - Mustafa Kaya
- Department of Surgical Oncology, Dr. Ersin Aslan Education and Research Hospital, Gaziantep, Turkey
| | - Hatice Özer
- Department of Pathology, Cumhuriyet University Faculty of Medicine, Sivas, Turkey
| | | | - Kürşat Karadayı
- Department of Surgical Oncology, Cumhuriyet University Faculty of Medicine, Sivas, Turkey
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2
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Wu CN, Chang WS, Shih LC, Wang YC, Lee HT, Yu CC, Wang ZH, Mong MC, Hsia TC, Tsai CW, Bau DAT. Interaction of DNA Repair Gene XPC With Smoking and Betel Quid Chewing Behaviors of Oral Cancer. Cancer Genomics Proteomics 2021; 18:441-449. [PMID: 33994366 DOI: 10.21873/cgp.20270] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/10/2021] [Accepted: 04/14/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND/AIM Xeroderma pigmentosum complementation group C (XPC) is reported to play important roles in DNA integrity and genomic instability, however, the contribution of XPC to oral carcinogenesis is largely uncertain. Therefore, we aimed at examining the contribution of XPC genotypes to oral cancer. MATERIALS AND METHODS The genotypes of XPC rs2228001 and rs2228000 were examined among 958 oral cancer patients and 958 control subjects by polymerase chain reaction-restriction fragment length polymorphism methodology and corresponding DNA repair capacity was checked. RESULTS First, the percentages of XPC rs2228001 AC and CC were higher among oral cancer patients than controls. Second, no significant association was observed regarding XPC rs2228000. Third, there was a synergistic influence of smoking and betel quid chewing behaviors and XPC rs2228001 genotype on oral cancer risk. Last, functional experiments showed DNA repair capacity was lower for AC/CC carriers than AA carriers. CONCLUSION XPC rs2228001 C allele, which was associated with decreased DNA repair capacity, may interact with smoking and betel quid chewing behaviors on oral cancer risk.
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Affiliation(s)
- Cheng-Nan Wu
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan, R.O.C
| | - Wen-Shin Chang
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan, R.O.C.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan, R.O.C.,Terry Fox Cancer Research Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Liang-Chun Shih
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan, R.O.C.,Terry Fox Cancer Research Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C.,Department of Otorhinolaryngology, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Yun-Chi Wang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan, R.O.C.,Terry Fox Cancer Research Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Hsu-Tung Lee
- Cancer Prevention Center, Taichung Veterans General Hospital, Taichung, Taiwan, R.O.C
| | - Chien-Chih Yu
- Terry Fox Cancer Research Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C.,School of Pharmacy, China Medical University, Taichung, Taiwan, R.O.C
| | - Zhi-Hong Wang
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan, R.O.C
| | - Mei-Chin Mong
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan, R.O.C
| | - Te-Chun Hsia
- Terry Fox Cancer Research Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Chia-Wen Tsai
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan, R.O.C.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan, R.O.C.,Terry Fox Cancer Research Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - DA-Tian Bau
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan, R.O.C.; .,Terry Fox Cancer Research Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, R.O.C.,Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan, R.O.C
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Zhou Q, Fu Y, Wen L, Deng Y, Chen J, Liu K. XPD Polymorphisms and Risk of Hepatocellular Carcinoma and Gastric Cancer: A Meta-Analysis. Technol Cancer Res Treat 2021; 20:1533033821990046. [PMID: 33517857 PMCID: PMC7871355 DOI: 10.1177/1533033821990046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Background: Cancer is associated with genetic variants of DNA repair genes that alter DNA
repair capacity. The aim of this meta-analysis was to evaluate the relations
between the rs13181 and rs1799793 XPD gene polymorphisms and risk for
hepatocellular carcinoma (HCC) and gastric cancer. Methods: Relevant publications were systematically sought from Web of Science, Pubmed,
and China Academic Journals Full-text Database. The selection of eligible
studies was performed by 2 independent authors. A total of 32 case-control
studies were included. Meta-analyses were undertaken in all study
participants and each ethnic group. Results: The risk of HCC was significantly increased with the XPD rs13181 G allele (P
= 0.028, pooled odds ratio (OR) = 1.36, 95% confidence interval (CI) =
1.03-1.80) in all study participants. A subgroup analysis by ethnicity
showed that the association was significant in Chinese (P = 0.009, pooled OR
= 1.49, 95% CI = 1.11-2.02), but not in Caucasians (P = 0.619, pooled OR =
1.17, 95% CI = 0.64-2.13). Meta-analysis of the XPD rs1799793 polymorphism
and HCC showed an association between its variant T allele and increased HCC
risk in all study participants (P = 0.017, pooled OR = 1.23, 95% CI =
1.04-1.46, all Chinese). Our results showed no associations between the XPD
rs13181 G allele and rs1799793 T allele and gastric cancer risk (rs13181: P
= 0.298, pooled OR = 1.10, 95% CI = 0.92-1.31; rs1799793: P = 0.068, pooled
OR = 1.31, 95% CI = 0.98-1.74). Conclusions: This meta-analysis demonstrated that the XPD rs13181 G allele and rs1799793 T
allele have significant associations with HCC and may be risk factors for
HCC in the Chinese population. Current evidence indicated that they are not
related to gastric cancer risk.
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Affiliation(s)
- Qiang Zhou
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yu Fu
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Lijia Wen
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yu Deng
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Junhong Chen
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Kai Liu
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
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Jian J, Li S, Liu LZ, Zhen L, Yao L, Gan LH, Huang YQ, Fang N. XPD inhibits cell growth and invasion and enhances chemosensitivity in esophageal squamous cell carcinoma by regulating the PI3K/AKT signaling pathway. Int J Mol Med 2020; 46:201-210. [PMID: 32377720 PMCID: PMC7255471 DOI: 10.3892/ijmm.2020.4593] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/13/2020] [Indexed: 12/24/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is a lethal disease due to its high aggressiveness. The aim of the present study was to investigate the role of xeroderma pigmentosum complementation group D (XPD) in the growth and invasion of ESCC and to elucidate the potential underlying molecular mechanisms. Western blot analysis and RT-qPCR were used to detect the expression level of XPD in ESCC tissue samples and adjacent normal esophageal tissue samples. The pEGFP-N2/XPD plasmid was transfected into human ESCC cell lines (EC9706 and EC109). The proliferation, apoptosis, migration and invasion of EC9706 or EC109 cells were assessed following transfection with the XPD overexpression plasmid. The chemosensitivity of EC9706 or EC109 cells to cisplatin or fluorouracil was evaluated by CCK-8 assay. The expression levels of phosphoinositide 3-kinase (PI3K)/AKT, nuclear factor (NF)-κB, Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) and mitogen-activated protein kinase (MAPK) signaling pathway-related genes were detected by RT-qPCR and western blot analysis. The results demonstrated that the expression level of XPD was markedly lower in ESCC tissue samples than in adjacent normal esophageal tissue samples. The pEGFP-N2/XPD plasmid was successfully transfected into EC9706 or EC109 cells, inducing XPD overexpression. A High XPD expression markedly suppressed cell proliferation, migration and invasion, and increased the apoptotic rate of EC9706 and EC109 cells. Furthermore, the overexpression of XPD significantly increased the chemosensitivity of EC9706 and EC109 cells to cisplatin or fluorouracil. Following XPD overexpression, the expression levels of PI3K, p-AKT, c-Myc, Cyclin D1, Bcl-2, vascular endothelial growth factor (VEGF) and matrix metalloproteinase (MMP)-9 were markedly downregulated, while the expression level of p21 was markedly upregulated. On the whole, the findings of the present study demonstrate that XPD inhibits the growth and invasion of EC9706 and EC109 cells, whilst also enhancing the chemosensitivity of EC9706 and EC109 cells to cisplatin or fluorouracil by regulating the PI3K/AKT signaling pathway. XPD may thus be an underlying target for ESCC treatment and drug resistance.
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Affiliation(s)
- Jie Jian
- Department of Gastroenterology, Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Shuang Li
- Department of Geriatrics and General Medicine, Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Li-Zhen Liu
- Department of Oncology, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201800, P.R. China
| | - Li Zhen
- Department of Gastroenterology, Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Ling Yao
- Department of Gastroenterology, Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Li-Hong Gan
- Department of Gastroenterology, Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Ya-Qing Huang
- Department of Gastroenterology, Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Nian Fang
- Department of Gastroenterology, Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
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5
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Expression deregulation of DNA repair pathway genes in gastric cancer. Cancer Genet 2019; 237:39-50. [DOI: 10.1016/j.cancergen.2019.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 05/08/2019] [Accepted: 06/06/2019] [Indexed: 12/28/2022]
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6
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Liu ZQ, Lu MY, Liu B. Polymorphisms in XPC Gene and Risk of Uterine Leiomyoma in Reproductive Women. Pathol Oncol Res 2019; 26:1459-1464. [PMID: 31428994 DOI: 10.1007/s12253-019-00720-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 08/13/2019] [Indexed: 11/26/2022]
Abstract
XPC gene belongs to DNA repair pathway, which is involved in the development of uterine leiomyoma. However, its relationships with leiomyoma risk were never reported. We here hypothesized that XPC gene was associated with the risk of uterine leiomyoma. In this case-control study with a total of 391 leiomyoma cases and 493 tumor-free controls in a reproductive women population in South China, two missense polymorphisms rs2228001 A > C (Lys939Gln) and rs2228000 C > T (Ala499Val) were genotyped by quantitative polymerase chain reaction (qPCR). Then, the associations between these two polymorphisms and leiomyoma risk were investigated. It was revealed that the rs2228000 CT/TT variant genotypes had a decreased leiomyoma risk (adjusted odds ratio = 0.73, 95% confidence interval = 0.54-0.94) compared with rs2228000 CC genotype. Further stratified analysis also revealed that the protective effect of rs2228000 CT/TT on the risk of uterine leiomyoma was more evident among subjects who were younger than 35 years old compared with those with larger tumors (diameter of tumor >5 cm), and those with fewer number of myomas (only one). However, no significant association was observed for leiomyoma risk for rs2228001 A > C. This study indicated that genetic variations in XPC gene are associated with leiomyoma susceptibility in a reproductive women population. It warrants further confirmation in larger prospective studies with different populations.
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Affiliation(s)
- Zhi-Qin Liu
- Department of Obstetrics and Gynecology, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, Guangdong, China
| | - Mei-Yin Lu
- Department of Biobank, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518102, Guangdong, China
| | - Bin Liu
- Department of Biobank, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518102, Guangdong, China.
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7
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DNA Repair Gene XRCC1 and XPD Polymorphisms and Gastric Cancer Risk: A Case-Control Study Outcome from Kashmir, India. Anal Cell Pathol (Amst) 2018; 2018:3806514. [PMID: 30225185 PMCID: PMC6129361 DOI: 10.1155/2018/3806514] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 06/03/2018] [Accepted: 06/05/2018] [Indexed: 01/25/2023] Open
Abstract
Coding polymorphisms in several DNA repair genes have been reported to affect the DNA repair capacity and are associated with genetic susceptibility to many human cancers, including gastric cancer. An understanding of these DNA repair gene polymorphisms might assess not only the risk of humans exposed to environmental carcinogens but also their responses to different therapeutical approaches, which target the DNA repair pathway. In the present study, polymorphic variants of two DNA repair genes, XRCC1 Arg399Gln and XPD Lys751Gln, were chosen to be studied in association with gastric cancer susceptibility in the Kashmiri population. A total of 180 confirmed cases of gastric cancer (GC) and 200 hospital-based controls from Government Shri Maharaja Hari Singh Hospital, Srinagar, were included in the study. The genotyping for XRCC1 and XPD genes was carried out by polymerase chain reaction-restriction fragment length polymorphism. We found that tobacco smoking is strongly associated with GC risk (OR = 25.65; 95% CI: 5.49–119.7). However, we did not find any association of polymorphism of XRCC1 Arg399Gln (OR = 1.56; 95% CI: 0.32–7.82) and XPD Lys751Gln (OR = 0.46; CI: 0.10–2.19) with GC risk in the study population. The combination of genotypes and gender stratification of XRCC1 and XPD genotypic frequency did not change the results. Consumption of large volumes of salt tea was also not associated with gastric cancer risk. Polymorphic variants of XRCC1 Arg399Gln and XPD Lys751Gln are not associated with the risk of gastric cancer in the Kashmiri population. However, replicative studies with larger sample size are needed to substantiate the findings.
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8
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Kang SW, Kim SK, Park HJ, Chung JH, Ban JY. Human 8-oxoguanine DNA glycosylase gene polymorphism (Ser326Cys) and cancer risk: updated meta-analysis. Oncotarget 2018; 8:44761-44775. [PMID: 28415770 PMCID: PMC5546516 DOI: 10.18632/oncotarget.16226] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 03/03/2017] [Indexed: 01/30/2023] Open
Abstract
Genetic polymorphism of human 8-oxoguanine glycosylase 1 (hOGG1) has been reported to have a relationship with the risk of the development of various cancers. Many studies have described the influence of Ser326Cys polymorphism of the hOGG1 gene on cancer susceptibility. However, the results have remained inconclusive and controversial. Therefore, we performed a meta-analysis to more precisely determine the relationship between the hOGG1 polymorphism and the development of cancer.Electronic databases including PubMed, Embase, Google Scholar, and the Korean Studies Information Service System (KISS) were searched. The odds ratio (OR), 95% confidence interval (CI), and p value were calculated to assess the strength of the association with the risk of cancer using Comprehensive Meta-analysis software (Corporation, NJ, USA). The 127 studies including 38,757 cancer patients and 50,177 control subjects were analyzed for the meta-analysis.Our meta-analysis revealed that G allele of Ser326Cys polymorphism of the hOGG1 gene statistically increased the susceptibility of cancer (all population, OR = 1.092, 95% CI = 1.051-1.134, p < 0.001; in Asian, OR = 1.095, 95% CI = 1.048-1.145, p < 0.001; in Caucasian, OR = 1.097, 95% CI = 1.033-1.179, p = 0.002). Also, other genotype models showed significant association with cancer (p < 0.05, respectively).The present meta-analysis concluded that the G allele was associated with an increased risk of cancer. It suggested that the hOGG1 polymorphism may be a candidate marker of cancer.
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Affiliation(s)
- Sang Wook Kang
- Department of Dental Pharmacology, School of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Su Kang Kim
- Kohwang Medical Institute, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hae Jeong Park
- Kohwang Medical Institute, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Joo-Ho Chung
- Kohwang Medical Institute, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Ju Yeon Ban
- Department of Dental Pharmacology, School of Dentistry, Dankook University, Cheonan, Republic of Korea
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Zhang D, Guo X, Hu J, Zeng G, Huang M, Qi D, Gong B. Association between hOGG1 polymorphism rs1052133 and gastric cancer. Oncotarget 2018; 8:34321-34329. [PMID: 28415729 PMCID: PMC5470970 DOI: 10.18632/oncotarget.16124] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 03/04/2017] [Indexed: 01/22/2023] Open
Abstract
Purpose To conduct a comprehensive evaluation of the association of the human8-oxoguanine glycosylase 1 (hOGG1) gene polymorphism rs1052133 with gastric cancer (GC) through a systematic review and meta-analysis of genetic association study. Results A total of 15 articles from published papers were included in our analysis. The meta-analyses for hOGG1 rs1052133, composed of 4024GC patients and 6022controls, showed low heterogeneity for the included populations in all the genetic models, except for the Caucasian population under allelic genetic model, the Asian population under addictive model and Caucasian population under dominant model. The analyses of all the genetic models in overall pooled populations did not identify any significant association between GC and hOGG1 rs1052133 (Allelic model: C vs. G, p = 0.746; Addictive model: CC vs. GG, p = 0.888; Recessive model: CC +GC vs. GG, p = 0.628; Dominant model: CC vs. GG+GC, p = 0.147), even though stratified analyses were conducted in different ethnicities under each genetic model. Materials and Methods All case-control association studies on hOGG1 and GC reported up to December 15, 2016 in PubMed, Embase, Web of Science, and the Chinese Biomedical Database were retrieved. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated for single-nucleotide polymorphism (SNP) using fixed- and random- effects models according to between-study heterogeneity. Publication bias analyses were conducted using Begg test. Conclusions This meta-analysis showed there was no association between hOGG1 rs1052133 and GC. Given the limited sample size, further investigations including more ethnic groups are required to validate the association.
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Affiliation(s)
- Dingding Zhang
- Sichuan Provincial Key Laboratory for Disease Gene Study, Hospital of University of Electronic Science and Technology of China and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China
| | - Xiaoxin Guo
- Sichuan Provincial Key Laboratory for Disease Gene Study, Hospital of University of Electronic Science and Technology of China and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China
| | - Jinliang Hu
- Institute of Health Policy and Hospital Management, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan, 610072, China.,School of Public Health, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Guangqun Zeng
- Department of Clinical Laboratory, People's Hospital of Pengzhou, Pengzhou, Sichuan, 611930, China
| | - Maomin Huang
- Sichuan Provincial Key Laboratory for Disease Gene Study, Hospital of University of Electronic Science and Technology of China and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China.,Department of Immunology, Zunyi Medical College, Zunyi, Guizhou, 563000, China
| | - Dandan Qi
- Sichuan Provincial Key Laboratory for Disease Gene Study, Hospital of University of Electronic Science and Technology of China and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China
| | - Bo Gong
- Sichuan Provincial Key Laboratory for Disease Gene Study, Hospital of University of Electronic Science and Technology of China and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China
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10
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Romanowicz H, Pyziak Ł, Jabłoński F, Bryś M, Forma E, Smolarz B. Analysis of DNA Repair Genes Polymorphisms in Breast Cancer. Pathol Oncol Res 2016; 23:117-123. [PMID: 27571987 DOI: 10.1007/s12253-016-0110-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 08/24/2016] [Indexed: 10/21/2022]
Abstract
Genetic polymorphisms in the DNA repair genes may be associated with increased cancer risk. The purpose of this study was to evaluate the association of the DNA repair genes polymorphisms with the risk of breast cancer development. The study included 200 breast cancer patients and 200 healthy controls. The following polymorphisms were studied: C/G (Ser326Cys, rs1052133) of the hOGG1, A/C (IVS5 + 33, rs3212961) of the ERCC1, A/C (Lys939Gln, rs2228001) of the XPC, C/T (Thr241Met, rs861539) of the XRCC3, G/T (Leu787Leu, rs1800392) of the WRN and G/T (Ser307Ser, rs1056503) of the XRCC4 gene. Presented study showed statistically significant increase in the breast cancer development risk of the G/G hOGG1 genotype (OR 8.13; 95 % CI, 4.37-15.14; p < 0.001) and for the G hOGG1 allele (OR 5.11; 95 % CI, 3.69-7.06; p < 0.001), as well as for the C/C ERCC1 genotype (OR 10.61; 95 % CI, 5.72-19.69; p < 0.001) and the C ERCC1 allele (OR 4.66; 95 % CI, 3.43-6.34; p < 0.001) in patients with breast cancer in comparison with healthy control group. We also observed positive association of the C/C XPC genotype (OR 3.80; 95 % CI, 2.27-6.38; p < 0.001) as well as the C XPC allele occurrence with an increased breast cancer development risk (OR 2.65; 95 % CI, 1.98-3.55; p < 0.001). Furthermore, we found an association of the G/T WRN gene polymorphism with increased risk of carcinoma. The hOGG1, ERCC1, XPC and WRN genes polymorphisms may be related to development of breast cancer.
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Affiliation(s)
- Hanna Romanowicz
- Laboratory of Cancer Genetics, Department of Pathology, Institute of Polish Mother's Memorial Hospital, Rzgowska 281/289, 93-338, Lodz, Poland.
| | - Łukasz Pyziak
- Laboratory of Cancer Genetics, Department of Pathology, Institute of Polish Mother's Memorial Hospital, Rzgowska 281/289, 93-338, Lodz, Poland
| | - Filip Jabłoński
- Laboratory of Cancer Genetics, Department of Pathology, Institute of Polish Mother's Memorial Hospital, Rzgowska 281/289, 93-338, Lodz, Poland
| | - Magdalena Bryś
- Department of Cytobiochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-237, Lodz, Poland
| | - Ewa Forma
- Department of Cytobiochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-237, Lodz, Poland
| | - Beata Smolarz
- Laboratory of Cancer Genetics, Department of Pathology, Institute of Polish Mother's Memorial Hospital, Rzgowska 281/289, 93-338, Lodz, Poland
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11
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Zou H, Li Q, Xia W, Liu Y, Wei X, Wang D. Association between the OGG1 Ser326Cys Polymorphism and Cancer Risk: Evidence from 152 Case-Control Studies. J Cancer 2016; 7:1273-80. [PMID: 27390603 PMCID: PMC4934036 DOI: 10.7150/jca.15035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/26/2016] [Indexed: 01/14/2023] Open
Abstract
Although it has been suggested that the 8-oxoguanine DNA glycosylase (OGG1) gene Ser326Cys polymorphism may be a risk factor for cancer, the conclusions from previous studies are inconsistent. Thus, we conducted an updated meta-analysis to estimate the effect of OGG1 variant genotypes on cancer susceptibility. We searched the PubMed for all eligible studies published in English for the period ending September 2014. We found the association between OGG1 Ser326Cys polymorphism and cancer susceptibility based on 152 case-control studies in different genetic model comparisons (dominant model: OR = 1.053, P = 0.018; recessive model: OR = 1.108, P < 0.001; homozygote: OR = 1.135, P < 0.001; additive model: OR = 1.059, P < 0.001). However, the results from the subgroup analyses based on types of cancer, health population as controls or studies with relatively large sample size did not support the conclusion. Although the overall results of this meta-analysis showed a positive association between OGG1 variant genotypes and cancer susceptibility, the subgroup analyses by cancer type, sample size, and source of controls presented inconsistent results. Therefore, the current evidence from the meta-analysis did not support the hypothesis of OGG1 Ser326Cys polymorphism as a risk factor of cancer.
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Affiliation(s)
- Hua Zou
- 1. Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Qing Li
- 1. Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Wei Xia
- 1. Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Yong Liu
- 3. Intensive care unit, Suining Central Hospital, Deshengxi Road 127, Chuanshan District, Suining, Sichuan 629000, China
| | - Xi Wei
- 2. Department of Diagnostic and Therapeutic Ultrasonography, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Dong Wang
- 1. Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
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12
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Das S, Nath S, Bhowmik A, Ghosh SK, Choudhury Y. Association between OGG1 Ser326Cys polymorphism and risk of upper aero-digestive tract and gastrointestinal cancers: a meta-analysis. SPRINGERPLUS 2016; 5:227. [PMID: 27026921 PMCID: PMC4771670 DOI: 10.1186/s40064-016-1858-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 02/16/2016] [Indexed: 12/24/2022]
Abstract
Cancers of the upper aero-digestive and gastrointestinal tract are one of the major causes of mortality around the world. DNA repair genes play a vital role in preventing carcinogenesis by maintaining genomic integrity. Polymorphisms in the nucleotide sequence of DNA repair genes are often reported to be associated with an increased risk for different cancers. The OGG1 gene encodes the enzyme 8-oxoguanine DNA glycosylase which removes oxidatively damaged bases of DNA. Several studies report that the OGG1 Ser326Cys polymorphism increases the risk for cancers of the upper aero-digestive and gastrointestinal tract. However, other studies provide evidence that such an association does not exist. A meta-analysis to assess the role of OGG1 Ser326Cys polymorphism in the cancers of the upper aero-digestive and gastrointestinal tract was therefore undertaken in order to resolve this ambiguity. Seventeen studies were recruited for this meta-analysis after screening 58 articles with a total of 5533 cases and 6834 controls for which the odds ratio with 95 % confidence interval was calculated. Begg’s funnel test and Egger’s test were performed for calculating publication bias. Our study reveals an association between OGG1 Ser326Cys polymorphism and cancer susceptibility of the upper aero-digestive and gastrointestinal tract (CG + GG vs CC; odds ratio, OR 1.22; 95 % CI 1.05–1.41; GG vs CG + CC; OR 1.36; 95 % CI 1.09–1.70; GG vs CC; OR 1.46; 95 % CI 1.12–1.92). Subgroup analysis based on cancer types and ethnicity also revealed the association of OGG1 Ser326Cys polymorphism to the risk for upper aero-digestive and gastrointestinal tract cancers among both the Asian and the Caucasian populations. No risk was however observed for smoking habits and OGG1 Ser326Cys polymorphism. In conclusion, OGG1 Ser326Cys polymorphism may be associated with the increased risk for aero-digestive tract and gastro-intestinal cancers in both Asian and Caucasian populations.
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Affiliation(s)
- Sambuddha Das
- Department of Biotechnology, Assam University, Silchar, 788011 India
| | - Sayantan Nath
- Department of Biotechnology, Assam University, Silchar, 788011 India
| | - Aditi Bhowmik
- Department of Biotechnology, Assam University, Silchar, 788011 India
| | | | - Yashmin Choudhury
- Department of Biotechnology, Assam University, Silchar, 788011 India
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Hua RX, Zhuo ZJ, Shen GP, Zhu J, Zhang SD, Xue WQ, Li XZ, Zhang PF, He J, Jia WH. Polymorphisms in the XPC gene and gastric cancer susceptibility in a Southern Chinese population. Onco Targets Ther 2016; 9:5513-9. [PMID: 27660469 PMCID: PMC5019428 DOI: 10.2147/ott.s113055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Previous studies have reported that XPC gene polymorphisms may modify the individual susceptibility to gastric cancer. In this case-control study with a total of 1,142 cases and 1,173 controls, four potentially functional polymorphisms were genotyped in the XPC gene (rs2228001 A>C, rs2228000 C>T, rs2607775 C>G, and rs1870134 G>C) by Taqman assays and their associations were analyzed with the risk of gastric cancer in a Southern Chinese population. No significant association between any of XPC polymorphisms and gastric cancer risk was detected except for a borderline association with the rs2228000 CT/TT genotype (crude odds ratio =0.86, 95% confidence interval =0.73-1.02, P=0.088) when compared to the rs2228000 CC genotype. Further stratified analysis revealed that the protective effect of rs2228000 CT/TT on the risk of gastric cancer was only significant among subjects older than 58 years. In summary, results indicated that genetic variations in XPC gene may play a weak effect on gastric cancer susceptibility in Southern Chinese population, which warrants further confirmation in larger prospective studies with different ethnic populations.
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Affiliation(s)
- Rui-Xi Hua
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
- Department of Oncology, The First Affiliated Hospital of Sun Yat-sen University
| | - Zhen-Jian Zhuo
- Department of Traditional Chinese Medicine Research, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangdong
| | - Guo-Ping Shen
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
| | - Jinhong Zhu
- Department of Laboratory Medicine and Molecular Epidemiology Laboratory, Harbin Medical University Cancer Hospital, Heilongjiang
| | - Shao-Dan Zhang
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
| | - Wen-Qiong Xue
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
| | - Xi-Zhao Li
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
| | - Pei-Fen Zhang
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
| | - Jing He
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangdong, People’s Republic of China
- Correspondence: Jing He, Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou 510623, Guangdong, People’s Republic of China, Tel/fax +86 20 3807 6560, Email
| | - Wei-Hua Jia
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
- Wei-Hua Jia, Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou 510060, Guangdong, People’s Republic of China, Tel +86 20 8734 2327, Fax +86 20 8734 3392, Email
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Zheng H, Nong Z, Lu G. Correlation Between Nuclear Factor E2-Related Factor 2 Expression and Gastric Cancer Progression. Med Sci Monit 2015; 21:2893-9. [PMID: 26410168 PMCID: PMC4590579 DOI: 10.12659/msm.894467] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Nuclear factor E2-related factor 2 (Nrf2) plays an anti-oxidative and phase II detoxification function via its up-regulation on various antioxidant response elements (ARE) genes. Nrf2 can protect both normal and cancer cells from damages of cell stress, thereby exerting a critical role in the development of cancer. The expression and significance of Nrf2 in gastric cancer, however, has not been reported. This study thus aimed to investigate the expression of Nrf2 in gastric cancer tissues via immunohistochemical (IHC) staining. Material/Methods Gastric carcinoma tissues from a total of 175 patients during surgical resection were examined for Nfr2 expression profiles using IHC staining on paraffin-embedded slides. Between-group-comparisons were performed by chi-square, Fisher’s exact, or Mann-Whitney U test. The correlation between Nfr2 expression and clinical indexes was further analyzed by Kaplan-Meier test, univariate/multivariate analysis, and log-rank test. Results Nrf2 is mainly expressed in nuclei of gastric carcinoma tissues, with significant correlation with clinical indexes, including tumor size, invasive depth, lymph node metastasis, and invasion. Patients with Nrf2-positive expression had significantly lower survival rates compared to those in the negative group (p<0.01), with chemo-resistance against 5-fluorouracil (5-FU) (p<0.05). Conclusions Nrf2 expression is positively correlated with invasive gastric cancer, suggesting its utility as a predictive index for unfavorable prognosis.
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Affiliation(s)
- Hongyu Zheng
- Department of Ultrasound, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China (mainland)
| | - Zhiwei Nong
- Department of Ultrasound, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China (mainland)
| | - Guohao Lu
- Department of Emergency, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China (mainland)
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Ali K, Mahjabeen I, Sabir M, Mehmood H, Kayani MA. OGG1 Mutations and Risk of Female Breast Cancer: Meta-Analysis and Experimental Data. DISEASE MARKERS 2015; 2015:690878. [PMID: 26089588 PMCID: PMC4452349 DOI: 10.1155/2015/690878] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 04/09/2015] [Indexed: 01/10/2023]
Abstract
In first part of this study association between OGG1 polymorphisms and breast cancer susceptibility was explored by meta-analysis. Second part of the study involved 925 subjects, used for mutational analysis of OGG1 gene using PCR-SSCP and sequencing. Fifteen mutations were observed, which included five intronic mutations, four splice site mutations, two 3'UTR mutations, three missense mutations, and a nonsense mutation. Significantly (p < 0.001) increased (~29 fold) breast cancer risk was associated with a splice site variant g.9800972T>G and 3'UTR variant g.9798848G>A. Among intronic mutations, highest (~15 fold) increase in breast cancer risk was associated with g.9793680G>A (p < 0.009). Similarly ~14-fold increased risk was associated with Val159Gly (p < 0.01), ~17-fold with Gly221Arg (p < 0.005), and ~18-fold with Ser326Cys (p < 0.004) in breast cancer patients compared with controls, whereas analysis of nonsense mutation showed that ~13-fold (p < 0.01) increased breast cancer risk was associated with Trp375STOP in patients compared to controls. In conclusion, a significant association was observed between OGG1 germ line mutations and breast cancer risk. These findings provide evidence that OGG1 may prove to be a good candidate of better diagnosis, treatment, and prevention of breast cancer.
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Affiliation(s)
- Kashif Ali
- Cancer Genetics Laboratory, Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad 44000, Pakistan
| | - Ishrat Mahjabeen
- Cancer Genetics Laboratory, Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad 44000, Pakistan
| | - Maimoona Sabir
- Cancer Genetics Laboratory, Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad 44000, Pakistan
| | - Humera Mehmood
- Nuclear Medicine Oncology & Radiotherapy Institute (NORI), Islamabad 44000, Pakistan
| | - Mahmood Akhtar Kayani
- Cancer Genetics Laboratory, Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad 44000, Pakistan
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16
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A systematic review and meta-analysis of the association between OGG1 Ser326Cys polymorphism and cancers. Med Oncol 2015; 32:472. [DOI: 10.1007/s12032-014-0472-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 12/18/2014] [Indexed: 12/26/2022]
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17
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Kawasaki Y, Ishigami S, Arigami T, Uenosono Y, Yanagita S, Uchikado Y, Kita Y, Nishizono Y, Okumura H, Nakajo A, Kijima Y, Maemura K, Natsugoe S. Clinicopathological significance of nuclear factor (erythroid-2)-related factor 2 (Nrf2) expression in gastric cancer. BMC Cancer 2015; 15:5. [PMID: 25588809 PMCID: PMC4302133 DOI: 10.1186/s12885-015-1008-4] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 01/03/2015] [Indexed: 01/01/2023] Open
Abstract
Background The transcription factor nuclear factor (erythroid-2)–related factor 2 (Nrf2) was originally identified as a critical regulator of intracellular anti-oxidants and of phase II detoxification enzymes through its transcriptional up-regulation of many anti-oxidant response element (ARE)-containing genes. Nrf2 protects not only normal cells but also cancer cells from cellular stress, and enhances cancer cell survival. Some studies have shown that Nrf2 expression in cancer patients has clinical significance. However, there has been no comprehensive analysis of the nuclear expression level of Nrf2 in gastrointestinal cancer cells. In this study we aimed to immunohistochemically evaluate the expression of Nrf2, and to assess its clinical significance in gastric cancer. Methods A total of 175 gastric cancer patients who received R0 gastrectomy with standard lymph node dissection were enrolled. We immunohistochemically evaluated Nrf2 expression in the paraffin-embedded surgically resected specimens of these 175 patients. Group differences were analyzed using the χ2 test, Fisher’s exact test, and the Mann–Whitney U test. Associations between Nrf2 expression and clinicopathological features, including clinical outcome, were assessed using univariate and multivariate analyses, and Kaplan-Meier curves with the log-rank test, respectively. Results Nrf2 immunoreactivity was predominantly identified in the nucleus of gastric cancer cells. Nrf2 positivity was closely associated with tumor size, tumor depth, lymph node metastases, lymphovascular invasion, histology and stage (p < 0.05 for all). A log-rank test indicated that the overall survival of the Nrf2-positive group was significantly poorer than that of the Nrf2-negative group (p < 0.01). And, positive Nrf2 expression was significantly associated with resistance to 5FU-based adjuvant chemotherapy (p = 0.024). Conclusions Nrf2 expression was positively associated with aggressive tumor behavior in gastric cancer. This result suggests that Nrf2 expression in gastric cancer is a potential indicator of worse prognosis.
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Affiliation(s)
- Yota Kawasaki
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Sumiya Ishigami
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Takaaki Arigami
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Yoshikazu Uenosono
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Shigehiro Yanagita
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Yasuto Uchikado
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Yoshiaki Kita
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Yuka Nishizono
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Hiroshi Okumura
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Akihiro Nakajo
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Yuko Kijima
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Kosei Maemura
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
| | - Shoji Natsugoe
- Department of Digestive Surgery, Breast and Thyroid surgery Graduate School of Medical Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8520, Japan.
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Guo XF, Wang J, Lei XF, Zeng YP, Dong WG. XPD Lys751Gln polymorphisms and the risk of esophageal cancer: an updated meta-analysis. Intern Med 2015; 54:251-9. [PMID: 25748732 DOI: 10.2169/internalmedicine.54.3256] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Published data regarding the association between xeroderma pigmentosum group D XPD Lys751Gln polymorphisms and esophageal cancer (EC) cancer remain controversial. The present meta-analysis aimed to obtain a more precise estimation of the relationship between XPD Lys751Gln polymorphisms and the risk of EC. METHODS All eligible case-control studies of Lys751Gln polymorphisms and susceptibility to EC were selected from PubMed, Web of Science and CNKI up to October 2013. The data were extracted, and pooled odds ratios (ORs) with 95% confidence intervals (CIs) were calculated. RESULTS A total of 21 case-control studies from 19 reports were assessed in this meta-analysis, including 6,581 cases and 8,251 controls. There was a significant association between the XPD Lys751Gln polymorphism and the risk of esophageal cancer in the overall population (Dominant model: OR=1.30, 95%CI: 1.07-1.57, p<0.05; Lys/Gln vs. Gln/Gln: OR=1.20, 95%CI: 1.05-137, p<0.05; Gln/Gln vs. Lys/Lys: OR=1.76, 95%CI: 1.08-2.85, p=0.02; Recessive model: OR=1.48, 95%CI: 1.06-2.07, p=0.02). Similar results were found when stratified according to the cancer type, ethnicity and control source. However, no associations were found among smokers or drinkers. CONCLUSION The results of this meta-analysis suggest that XPD Lys751Gln polymorphisms contribute to susceptibility to EC.
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Affiliation(s)
- Xu-Feng Guo
- Department of Gastroenterology, Renmin Hospital of Wuhan University, China
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The hOGG1 Ser326Cys polymorphism contributes to digestive system cancer susceptibility: evidence from 48 case-control studies. Tumour Biol 2014; 36:1029-38. [PMID: 25323581 DOI: 10.1007/s13277-014-2710-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 02/10/2014] [Indexed: 12/13/2022] Open
Abstract
The Ser326Cys polymorphism in the human 8-oxogunaine DNA glycosylase (hOGG1) gene had been implicated in cancer susceptibility. Studies investigating the associations between the Ser326Cys polymorphism and digestion cancer susceptibility showed conflicting results. Therefore, a meta-analysis was performed to derive a more precise estimation of the relationship. We conducted a meta-analysis of 48 studies that included 12,073 cancer cases and 19,557 case-free controls. We assessed the strength of the association using odds ratios (ORs) with 95% confidence intervals (CIs). In our analysis, the hOGG1 Ser326Cys polymorphism was significantly associated with the risk of digestive system cancers (Cys/Cys vs. Ser/Ser: OR = 1.17, 95% CI = 1.00-1.35, P < 0.001; Cys/Cys vs. Cys/Ser + Ser/Ser: OR = 1.14, 95% CI = 1.00-1.29, P < 0.001). In subgroup analyses by cancer types, we found that the hOGG1 Ser326Cys polymorphism may increase hepatocellular cancer and colorectal cancer risks, but decrease the risk of oral cancer. These findings supported that hOGG1 Ser326Cys polymorphism may contribute to the susceptibility of digestive cancers.
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20
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Association between TLR2, MTR, MTRR, XPC, TP73, TP53 genetic polymorphisms and gastric cancer: a meta-analysis. Clin Res Hepatol Gastroenterol 2014; 38:346-59. [PMID: 24534481 DOI: 10.1016/j.clinre.2013.12.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/06/2013] [Accepted: 12/24/2013] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The aim of our meta-analyses is to test the association between six genetic polymorphisms and gastric cancer. METHODS A systematic search was performed for all the available candidate genes and gastric cancer among several online databases including PubMed, Embase, Web of Science, the Cochrane Library, CNKI and Wanfang online libraries. After a comprehensive screening, a total of six genes were harvested for the current meta-analyses. These genes include TLR2 (-196 to -174 ins>del), MTR (rs1805087), MTRR (rs1801394), XPC (rs2228001), TP73 (G4C14-A4T14), and TP53 (rs1042522). RESULTS Altogether 49 comparative studies among 11 776 cases and 18 633 controls were involved in our meta-analyses. TP53 rs1042522 polymorphism was shown to be associated with gastric cancer risk under the dominant model (P=0.02, OR=1.03, 95% CI=1.00-1.05). A subgroup meta-analysis indicated a significant association under dominant model between TP53 rs1042522 and gastric cancer in the Eastern Asians (P=0.03, OR=1.17, 95%=1.02-1.34). CONCLUSIONS These results suggest that TP53 rs1042522 polymorphism might contribute to the susceptibility of gastric cancer under the dominant model, especially in Eastern Asians.
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Peng Q, Chen Z, Lu Y, Lao X, Mo C, Li R, Qin X, Li S. Current evidences on XPC polymorphisms and gastric cancer susceptibility: a meta-analysis. Diagn Pathol 2014; 9:96. [PMID: 24886180 PMCID: PMC4053311 DOI: 10.1186/1746-1596-9-96] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Accepted: 05/11/2014] [Indexed: 02/07/2023] Open
Abstract
Background Reduced DNA repair capacities due to inherited polymorphisms may increase the susceptibility to cancers including gastric cancer. Previous studies investigating the association between Xeroderma Pigmentosum group C (XPC) gene polymorphisms and gastric cancer risk reported inconsistent results. We performed a meta-analysis to summarize the possible association. Methods All studies published up to January 2014 on the association between XPC polymorphisms and gastric cancer risk were identified by searching electronic databases PubMed, EMBASE, Cochrane library, and Chinese Biomedical Literature database (CBM). The association between XPC polymorphisms and gastric cancer risk was assessed by odds ratios (ORs) together with their 95% confidence intervals (CIs). Results Six studies with 1,355 gastric cancer cases and 2,573 controls were finally included in the meta-analysis. With respect to Lys939Gln polymorphism, we did not observe a significant association when all studies were pooled into the meta-analysis. When stratified by ethnicity, source of control, and study quality, statistical significant association was not detected in all subgroups. With respect to Ala499Val and PAT−/+polymorphisms, we also did not observe any significant association with gastric cancer risk in the pooled analysis. Conclusions This meta-analysis based on current evidences suggested that the XPC polymorphisms (Lys939Gln, Val499Arg, and PAT−/+) did not contribute to gastric cancer risk. Considering the limited sample size and ethnicity included in the meta-analysis, further larger scaled and well-designed studies are needed to confirm our results. Virtual Slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1485880312555069
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Affiliation(s)
| | | | | | | | | | | | - Xue Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi, China.
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The effect of XPD polymorphisms on digestive tract cancers risk: a meta-analysis. PLoS One 2014; 9:e96301. [PMID: 24787743 PMCID: PMC4008560 DOI: 10.1371/journal.pone.0096301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 04/06/2014] [Indexed: 01/30/2023] Open
Abstract
Background The Xeroderma pigmento-sum group D gene (XPD) plays a key role in nucleotide excision repair. Single nucleotide polymorphisms (SNP) located in its functional region may alter DNA repair capacity phenotype and cancer risk. Many studies have demonstrated that XPD polymorphisms are significantly associated with digestive tract cancers risk, but the results are inconsistent. We conducted a comprehensive meta-analysis to assess the association between XPD Lys751Gln polymorphism and digestive tract cancers risk. The digestive tract cancers that our study referred to, includes oral cancer, esophageal cancer, gastric cancer and colorectal cancer. Methods We searched PubMed and EmBase up to December 31, 2012 to identify eligible studies. A total of 37 case-control studies including 9027 cases and 16072 controls were involved in this meta-analysis. Statistical analyses were performed with Stata software (version 11.0, USA). Odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess the strength of the association. Results The results showed that XPD Lys751Gln polymorphism was associated with the increased risk of digestive tract cancers (homozygote comparison (GlnGln vs. LysLys): OR = 1.12, 95% CI = 1.01–1.24, P = 0.029, Pheterogeneity = 0.133). We found no statistical evidence for a significantly increased digestive tract cancers risk in the other genetic models. In the subgroup analysis, we also found the homozygote comparison increased the susceptibility of Asian population (OR = 1.28, 95% CI = 1.01–1.63, P = 0.045, Pheterogeneity = 0.287). Stratified by cancer type and source of control, no significantly increased cancer risk was found in these subgroups. Additionally, risk estimates from hospital-based studies and esophageal studies were heterogeneous. Conclusions Our meta-analysis suggested that the XPD 751Gln/Gln genotype was a low-penetrate risk factor for developing digestive tract cancers, especially in Asian populations.
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Liu J, He C, Xing C, Yuan Y. Nucleotide excision repair related gene polymorphisms and genetic susceptibility, chemotherapeutic sensitivity and prognosis of gastric cancer. Mutat Res 2014; 765:11-21. [PMID: 24769428 DOI: 10.1016/j.mrfmmm.2014.04.008] [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] [Received: 11/26/2013] [Revised: 03/03/2014] [Accepted: 04/10/2014] [Indexed: 12/14/2022]
Abstract
Human genomic DNA is in a dynamic balance of damage and repair. Cells employ multiple and specific repair pathways, such as nucleotide excision repair (NER), as unrepaired DNA damage has deleterious consequences and could give rise to carcinogenesis. Gene polymorphisms play a crucial role in predicting the risk and prognosis of cancer. Polymorphisms of NER-related genes could alter the ability of NER to effectively monitor and repair DNA damage, and thus may be associated with genetic susceptibility, chemotherapeutic sensitivity and prognosis of cancer. In recent years, increasing studies have focused on the association between polymorphisms of NER genes and gastric cancer, the world's fourth most common cancer and the second most common cause for cancer-related death. Here we reviewed the recent studies on the associations between polymorphisms of NER genes and gastric cancer from perspectives of genetic susceptibility, chemotherapeutic sensitivity and prognosis.
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Affiliation(s)
- Jingwei Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Caiyun He
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Chengzhong Xing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China.
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China.
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He J, Shi TY, Zhu ML, Wang MY, Li QX, Wei QY. Associations of Lys939Gln and Ala499Val polymorphisms of the XPC gene with cancer susceptibility: a meta-analysis. Int J Cancer 2013; 133:1765-75. [PMID: 23400628 DOI: 10.1002/ijc.28089] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Accepted: 01/28/2013] [Indexed: 02/05/2023]
Abstract
XPC polymorphisms may alter DNA repair capacity, thus leading to genetic instability and carcinogenesis. Numerous studies have investigated the associations of XPC Lys939Gln (rs2228001) and Ala499Val (rs2228000) polymorphisms with cancer susceptibility; however, the findings are inconclusive. We searched literature from MEDLINE and EMBASE for eligible publications that assessed the associations between these two polymorphisms and cancer risk. We also assessed genotype-mRNA expression correlation data from HapMap for rs2228001 and rs2228000 in normal cell lines derived from 270 subjects with different ethnicities. The final analysis included 62 published studies of 25,708 cases and 30,432 controls for the Lys939Gln and 34 studies with 14,877 cases and 17,888 controls for the Ala499Val. Overall, Lys939Gln was significantly associated with an increased overall cancer risk (Gln/Gln vs. Lys/Lys: OR = 1.16, 95% CI = 1.07 - 1.25, p < 0.001; recessive model: OR = 1.14, 95% CI = 1.06 - 1.22, p < 0.001; dominant model: OR = 1.06, 95% CI = 1.01 - 1.11, p = 0.015 and Gln vs. Lys: OR = 1.07, 95% CI = 1.03 - 1.10, p < 0.001) and further stratifications showed an increased risk for bladder, lung and colorectal cancer, Asian populations and population-based studies. Likewise, Ala499Val was also significantly associated with an increased overall cancer risk (Val/Val vs. Ala/Ala: OR = 1.21, 95% CI = 1.07 - 1.36, p = 0.003 and recessive model: OR = 1.20, 95% CI = 1.08 - 1.34, p = 0.001) and further stratification showed an increased risk for breast and bladder cancer, particularly in Asian populations. Interestingly, significantly correlation between XPC genotypes and mRNA expression was found only for Asian populations as well. Despite some limitations, this meta-analysis established some solid statistical evidence for an association between XPC polymorphisms and cancer risk, which warrants further validation in single large studies.
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Affiliation(s)
- Jing He
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
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Li BR, Zhou GW, Bian Q, Song B. Lack of association between the hOGG1 Ser326Cys polymorphism and gastric cancer risk: a meta-analysis. Asian Pac J Cancer Prev 2013; 13:1145-9. [PMID: 22799296 DOI: 10.7314/apjcp.2012.13.4.1145] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AIM To clarify any association between the hOGG1 Ser326Cys polymorphism and susceptibility to gastric cancer. METHODS A meta-analysis based on 11 eligible case-control studies involving 5,107 subjects was carried out to summarize the data on the association between hOGG1 Ser326Cys polymorphism and gastric cancer risk. RESULTS No association was found between hOGG1 Ser326Cys polymorphism and gastric cancer risk (dominant model: OR = 0.95, 95% CI: 0.83-1.09, p = 0.486, ph (p values for heterogeneity) = 0.419; additive model: OR = 1.02, 95% CI: 0.81-1.30, p = 0.850, ph = 0.181; recessive model: OR = 1.09, 95% CI: 0.80-1.48, p = 0.586, ph = 0.053). Subgroup analysis based on ethnicity (Asian and Caucasian) and smoking status (ever smoker and never smoker) did did notpresent any significant association. Sensitivity analysis did not perturb the results. CONCLUSIONS This study strongly suggested there might be no association between the hOGG1 Ser326Cys polymorphism and gastric cancer risk. However, larger scale studies are needed for confirmation.
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Affiliation(s)
- Bai-Rong Li
- Department of General Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
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26
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Karahalil B, Engin AB, Coşkun E. Could 8-oxoguanine DNA glycosylase 1 Ser326Cys polymorphism be a biomarker of susceptibility in cancer? Toxicol Ind Health 2012; 30:814-25. [PMID: 23081862 DOI: 10.1177/0748233712463777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Biomarkers are key molecular or cellular events that give an indication whether there is a threat for disease, whether a disease already exists, or how such disease may develop in an individual case. The discovery of polymorphisms in genes that function in the metabolism of chemicals and in DNA repair has demonstrated the importance of understanding the phenomenon of genetic susceptibility in a population. Polymorphisms in DNA repair genes as an important component of the individual susceptibility to the development of cancer and various hereditary diseases have been commonly studied, since these genes have critical roles in maintaining genome integrity. Furthermore, the evaluation of cancer risk depends on the level of exposure to carcinogenic factors as well as on the genetic codes of the individual. This approach is supported by studies that present positive association between these polymorphic genes and cancers. Although 8-oxoguanine DNA glycosylase 1 (OGG1) is one of the promising biomarker candidates of cancer susceptibility, there are also some controversial results. Epidemiological studies show that the OGG1 might be a biomarker of susceptibility for various cancers; however, the small sample size and difference in the eligibility criteria for inclusion of subjects and sources might limit the studies to demonstrate the association between the OGG1 Ser326Cys polymorphism and the risk of cancer. Thus, meta-analyses may provide more valuable and reliable data to demonstrate the potential of OGG1 Ser326Cys DNA repair enzyme polymorphisms that could be the biomarkers of susceptibility of cancer. Our aim in this review is to compile published studies, including some controversial results on the association between the OGG1 Ser326Cys polymorphism and the risk of cancer.
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Affiliation(s)
- Bensu Karahalil
- Toxicology Department, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Ayşe Başak Engin
- Toxicology Department, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Erdem Coşkun
- Toxicology Department, Faculty of Pharmacy, Gazi University, Ankara, Turkey
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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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Association of hOGG1 Ser326Cys polymorphism with gastric cancer risk: a meta-analysis. Mol Biol Rep 2012; 39:6563-8. [PMID: 22294108 DOI: 10.1007/s11033-012-1485-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 01/24/2012] [Indexed: 12/16/2022]
Abstract
Studies investigating the association between human 8-oxoguanine glycosylase 1(hOGG1) Ser326Cys polymorphism and gastric cancer (GC) risk have reported conflicting results. We performed a meta-analysis of published case-control studies to better compare results between studies. 11 eligible studies with 2,180 GC cases and 3,985 controls were selected. There were 5 studies involving Caucasians and 5 studies involving Asians. The combined result based on all studies did not show significant difference in any genetics models. Ser/Cys + Cys/Cys versus Ser/Ser (OR = 0.91, 95% CI 0.81-1.03), Cys/Cys versus Ser/Cys + Ser/Ser (OR = 1.07, 95% CI 0.80-1.44), Ser/Cys versus Ser/Ser (OR = 0.91, 95% CI 0.80-1.03), Sys/Cys versus Ser/Cys (OR = 1.10, 95% CI 0.83-1.47), Cys/Cys versus Ser/Ser (OR = 0.99, 95% CI 0.74-1.34), Cys versus Ser (OR = 1.01, 95% CI 0.88-1.17).When stratifying for ethnicity, there was still no significant association found between hOGG1 Ser326Cys polymorphism and GC risk. Funnel plot and Egger’s test showed some evidence of publication bias on the basis of all studies. Two studies were the main reason because their samples were too small. However, the result of sensitivity analysis suggested that the influence of these two studies and one mixed population study on the pooled OR was weak. Our result could explain the association between hOGG1 Ser326Cys polymorphism and GC risk. In conclusion, we did not found the evidence that the Cys allele at codon 326 of hOGG1 could increase GC risk in our analysis.
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Wei B, Zhou Y, Xu Z, Xi B, Cheng H, Ruan J, Zhu M, Hu Q, Wang Q, Wang Z, Yan Z, Jin K, Zhou D, Xuan F, Huang X, Shao J, Lu P. The effect of hOGG1 Ser326Cys polymorphism on cancer risk: evidence from a meta-analysis. PLoS One 2011; 6:e27545. [PMID: 22114677 PMCID: PMC3219678 DOI: 10.1371/journal.pone.0027545] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 10/18/2011] [Indexed: 01/15/2023] Open
Abstract
Background Human oxoguanine glycosylase 1 (hOGG1) in base excision repair (BER) pathway plays a vital role in DNA repair. Numerous epidemiological studies have evaluated the association between hOGG1 Ser326Cys polymorphism and the risk of cancer. However, the results of these studies on the association remain conflicting. To derive a more precise estimation of the association, we conducted a meta-analysis. Methodology/Principal Findings A comprehensive search was conducted to identify the eligible studies of hOGG1 Ser326Cys polymorphism and cancer risk. We used odds ratios (ORs) with 95% confidence intervals (CIs) to assess the strength of the association. We found that the hOGG1 Ser326Cys polymorphism was significantly associated with overall cancer risk (Cys/Cys vs. Ser/Ser: OR = 1.19, 95%CI = 1.09–1.30, P<0.001; Cys/Cys vs. Cys/Ser+Ser/Ser: OR = 1.16, 95%CI = 1.08–1.26, P<0.001). Moreover, in subgroup analyses by cancer types, the stronger significant association between hOGG1 Ser326Cys polymorphism and lung cancer risk was found (Cys/Cys vs. Ser/Ser: OR = 1.29, 95%CI = 1.16–1.44, P<0.001; Cys/Cys vs. Cys/Ser+Ser/Ser: OR = 1.22, 95%CI = 1.12–1.33, P<0.001). The significant effects of hOGG1 Ser326Cys polymorphism on colorectal, breast, bladder, prostate, esophageal, and gastric cancer were not detected. In addition, in subgroup analyses by ethnicities, we found that the hOGG1 Ser326Cys polymorphism was associated with overall cancer risk in Asians (Cys/Cys vs. Ser/Ser: OR = 1.21, 95%CI = 1.10–1.33, P<0.001). Conclusions This meta-analysis showed that hOGG1 326Cys allele might be a low-penetrant risk factor for lung cancer.
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Affiliation(s)
- Bingbing Wei
- Department of Urology, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
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