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Li Q, Ma C, Zhang Z, Chen S, Zhi W, Zhang L, Zhang G, Shi L, Cao F, Ma T. Association between cyclooxygenase-2 (COX-2) 8473 T > C polymorphism and cancer risk: a meta-analysis and trial sequential analysis. BMC Cancer 2018; 18:847. [PMID: 30143023 PMCID: PMC6109290 DOI: 10.1186/s12885-018-4753-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 08/14/2018] [Indexed: 12/23/2022] Open
Abstract
Background Numerous studies have investigated the relationship between COX-2 8473 T > C polymorphism and cancer susceptibility, however, the results remain controversial. Therefore, we carried out the present meta-analysis to obtain a more accurate assessment of this potential association. Methods In this meta-analysis, 79 case-control studies were included with a total of 38,634 cases and 55,206 controls. We searched all relevant articles published in PubMed, EMBASE, OVID, Web of Science, CNKI and Wanfang Data, till September 29, 2017. The pooled odds ratios (ORs) with 95% confidence intervals (CIs) were used to evaluate the strength of the association. We performed subgroup analysis according to ethnicity, source of controls, genotyping method and cancer type. Moreover, Trial sequential analysis (TSA) was implemented to decrease the risk of type I error and estimate whether the current evidence of the results was sufficient and conclusive. Results Overall, our results indicated that 8473 T > C polymorphism was not associated with cancer susceptibility. However, stratified analysis showed that the polymorphism was associated with a statistically significant decreased risk for nasopharyngeal cancer and bladder cancer, but an increased risk for esophageal cancer and skin cancer. Interestingly, TSA demonstrated that the evidence of the result was sufficient in this study. Conclusion No significant association between COX-2 8473 T > C polymorphism and cancer risk was detected. Electronic supplementary material The online version of this article (10.1186/s12885-018-4753-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Qiuping Li
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China
| | - Chao Ma
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China
| | - Zhihui Zhang
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China
| | - Suhua Chen
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China
| | - Weiguo Zhi
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China
| | - Lei Zhang
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China
| | - Guoyao Zhang
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China
| | - Lei Shi
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China
| | - Fei Cao
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China
| | - Tianjiang Ma
- Department of Medical Oncology, Luohe Central Hospital, Luohe First People's Hospital, No. 56 People's East Road, Luohe City, 462000, Henan Province, China.
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Yang P, Wang M, Tian T, Feng Y, Zheng Y, Yang T, Li H, Lin S, Xu P, Deng Y, Hao Q, Li N, Guan F, Dai Z. CYP17 polymorphisms are associated with decreased risk of breast cancer in Chinese Han women: a case-control study. Cancer Manag Res 2018; 10:1791-1798. [PMID: 30013390 PMCID: PMC6037160 DOI: 10.2147/cmar.s167503] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Introduction CYP17 is the second most important enzyme in estradiol synthesis. Epidemiological studies have shown the associations between CYP17 polymorphisms and cancer risk. We conducted a case–control study to evaluate the relationship between CYP17 polymorphisms (rs743572 and rs2486758) and breast cancer (BC) risk. Patients and methods This case–control study included 560 BC patients and 583 age-matched healthy controls from Northwest China. Two polymorphisms (rs743572 and rs2486758) of CYP17 were genotyped by using Sequenom MassARRAY. ORs and 95% CIs were used to evaluate the relationship. Results Compared with the wild genotype of rs743572, we found a significantly reduced risk of BC associated with the variant genotypes (heterozygote model: OR=0.69, 95% CI=0.53–0.89; homozygote model: OR=0.68, 95% CI=0.49–0.95; dominant model: OR=0.69, 95% CI=0.54–0.87; overdominant model: OR=0.78, 95% CI=0.62–0.98; allele model: OR=0.79, 95% CI=0.66–0.93). For rs2486758 polymorphism, we did not find any difference in any of the genetic models. Further stratification analysis by clinical characteristics showed rs743572 was associated with estrogen receptor status (heterozygote model: OR=2.13, 95% CI=1.47–3.08; homozygote model: OR=3.29, 95% CI=1.94–5.58; dominant model: OR=2.39, 95% CI=1.69–3.37) and progesterone receptor status (homozygote model: OR=3.17, 95% CI=1.82–5.55), but there was no association between rs2486758 and clinical characteristics of BC. Haplotype analysis showed that Grs743572Crs2486758 haplotype was a protective factor of BC (OR=0.52, 95% CI=0.40–0.67). Survival analysis did not find that CYP17 rs743572 polymorphism was associated with triple-negative BC, either in terms of overall survival or progression-free survival. Conclusion Our results suggest that CYP17 polymorphisms may reduce the susceptibility to BC in Chinese women.
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Affiliation(s)
- Pengtao Yang
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
| | - Meng Wang
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
| | - Tian Tian
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
| | - Yanjing Feng
- Department of Cardiology, Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710004, People's Republic of China
| | - Yi Zheng
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
| | - Tielin Yang
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Hongtao Li
- Department of Breast, Head and Neck Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumchi, 830000, People's Republic of China
| | - Shuai Lin
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
| | - Peng Xu
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
| | - Yujiao Deng
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
| | - Qian Hao
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
| | - Na Li
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
| | - Feng Guan
- College of Life Science and Technology, Northwest University, Xi'an 710069, People's Republic of China,
| | - Zhijun Dai
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, People's Republic of China,
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Huang W, Deng C, Tian F, Gao W, Ding Z, Rao X, Yin Z. A case-control study and meta-analysis reveal the association between COX-2 G-765C polymorphism and primary end-stage hip and knee osteoarthritis. J Clin Lab Anal 2018; 32:e22412. [PMID: 29453810 PMCID: PMC6816993 DOI: 10.1002/jcla.22412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 01/24/2018] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a popular arthrosis featured as pain, limited joint activity, and deformity. Cyclooxygenase-2 (COX-2) has been reported to be up-regulated in arthritic tissues and is integral to the progression of osteoarthritis (OA). Previous studies showed the COX-2 promoter G-765C polymorphism could influence COX-2 expression. However, the relationship between the variant and OA risk is contrasting. METHODS We conducted a case-control study with 196 primary end-stage hip and knee OA cases and 196 controls in a Chinese Han population. Subsequently, we integrated this case-control study in a meta-analysis to acquire greater statistical power. The results from our case-control study using MassARRAY genotyping technology and binary logistic regression statistical methods. RESULTS The variant carriers in the Chinese Han population had a lower primary end-stage hip and knee OA susceptibility (C vs G: OR = 0.350, 95%CI: 0.154-0.797, P = .012; GC vs GG: adjusted OR = 0.282, 95%CI: 0.118-0.676, P = .005). Stratification studies indicated that a higher GC frequency in women decreased not only knee OA susceptibility but also unilateral knee OA risk. The meta-analysis showed that the variant exhibited a significantly decreased OA risk through comparisons involving allelic, homozygous, heterozygous, and dominant models. CONCLUSION Our findings suggest that the COX-2 G-765C polymorphism exerts a protective effect against primary end-stage knee osteoarthritis in a female Chinese Han population.
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Affiliation(s)
- Wei Huang
- Department of OrthopaedicsFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
- Department of OrthopaedicsAnhui Provincial HospitalHefeiChina
| | - Chen Deng
- Department of OrthopaedicsAnhui Provincial HospitalHefeiChina
| | - Feng Tian
- Department of OrthopaedicsAnhui Provincial HospitalHefeiChina
| | - Weilu Gao
- Department of OrthopaedicsFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
| | - Zhenfei Ding
- Department of OrthopaedicsFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
| | - Xianliang Rao
- Department of OrthopaedicsFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
| | - Zongsheng Yin
- Department of OrthopaedicsFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
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Moraes JL, Moraes AB, Aran V, Alves MR, Schluckbier L, Duarte M, Toscano E, Zamboni M, Sternberg C, de Moraes E, Lapa E Silva JR, Ferreira CG. Functional analysis of polymorphisms in the COX-2 gene and risk of lung cancer. Mol Clin Oncol 2017; 6:494-502. [PMID: 28413655 PMCID: PMC5374939 DOI: 10.3892/mco.2017.1167] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 01/31/2017] [Indexed: 12/20/2022] Open
Abstract
The enzyme cyclooxygenase 2 (COX-2) is known to be involved in tumorigenesis and metastasis in certain types of cancer. Nevertheless, the prognostic value of COX-2 overexpression and its polymorphisms in patients with non-small cell lung cancer (NSCLC) have yet to be fully elucidated. The aim of the present study was to investigate the association between the three most commonly studied COX-2 gene polymorphisms (-1195 G/A, -765 G/C and 8473 T/C) with COX-2 expression and lung cancer risk in a Brazilian cohort. In the present hospital based, case-control retrospective study, 104 patients with NSCLC and 202 cancer free control subjects were genotyped for -1195 G/A, -765 G/C and 8473 T/C polymorphisms using allelic discrimination with a reverse transcription quantitative polymerase chain reaction method. COX-2 mRNA expression was analyzed in surgically resected tumors from 34 patients with NSCLC. The results revealed that COX-2 expression levels were higher in tumor tissue compared with normal lung tissue. However, this overexpression of COX-2 was not associated with the patient outcome, and furthermore, none of the analyzed polymorphisms were associated with the risk of developing lung cancer, COX-2 overexpression, or the overall survival of the patients with NSCLC. Taken together, the findings described in the present study do not support a major role for COX-2 polymorphisms and COX-2 overexpression in lung carcinogenesis within the Brazilian population.
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Affiliation(s)
- Joyce L Moraes
- Clinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Amanda B Moraes
- Clinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Veronica Aran
- Clinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Marcelo R Alves
- Evandro Chagas Clinical Research Institute, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Luciene Schluckbier
- Clinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Mariana Duarte
- Clinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Edson Toscano
- Department of Thoracic Surgery, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Mauro Zamboni
- Department of Thoracic Surgery, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Cinthya Sternberg
- Clinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Emanuela de Moraes
- Clinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - José R Lapa E Silva
- Institute of Thoracic Medicine, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Carlos Gil Ferreira
- National Clinical Cancer Research Network (RNPCC) SCTIE/MS, Rio de Janeiro, Brazil.,D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
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Ren HT, Li YM, Wang XJ, Kang HF, Jin TB, Ma XB, Liu XH, Wang M, Liu K, Xu P, Yao QL, Dai ZJ. PD-1 rs2227982 Polymorphism Is Associated With the Decreased Risk of Breast Cancer in Northwest Chinese Women: A Hospital-Based Observational Study. Medicine (Baltimore) 2016; 95:e3760. [PMID: 27227944 PMCID: PMC4902368 DOI: 10.1097/md.0000000000003760] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Programmed death-1 (PD-1) is crucial in cancer and is well characterized as a negative T-cell regulator that functions by delivering inhibitory signals. We aimed to evaluate the relationship between PD-1 polymorphisms (rs10204525, rs2227982, and rs7421861) and breast cancer risk.We selected 560 breast cancer patients and 583 age-, sex-, and ethnicity-matched healthy controls from Northwest China. The PD-1 polymorphisms were genotyped by using Sequenom MassARRAY. Associations were estimated with odds ratios (ORs) and 95% confidence intervals (95% CIs).For the rs10204525 and rs7421861 polymorphisms, no differences in breast cancer risk were found in any of the genetic models. For the rs2227982 polymorphism, the variant genotypes were significantly associated with decreased breast cancer risk (CT vs CC: OR = 0.68, 95% CI = 0.52-0.91; CT + TT vs CC: OR = 0.69, 95% CI = 0.53-0.90). In analyses stratified by age, the decreased risk was observed among the younger subjects (OR = 0.68, 95% CI = 0.47-0.97). We found that the decreased risk observed for the variant genotypes of rs2227982 was associated with the Her-2 status (CT vs CC: OR = 0.55, 95% CI = 0.37-0.84; CT + TT vs CC: OR = 0.56, 95% CI = 0.38-0.82). The haplotype analysis showed that the Ars10204525 Trs2227982 Crs7421861 haplotype was associated with a significantly decreased risk of breast cancer (OR = 0.50, 95% CI = 0.34-0.75).Our findings support an association between the PD-1 rs2227982 polymorphism and decreased breast cancer risk, especially in Her-2 positive breast cancer patients in the Chinese population.
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Affiliation(s)
- Hong-Tao Ren
- From the Departments of Oncology (H-TR, X-JW, H-FK, X-BM, X-HL, MW, KL, PX, Q-LY, Z-JD) and General Surgery (Y-ML), The Second Affiliated Hospital of Xi'an Jiaotong University; and National Engineering Research Center for Miniaturized Detection Systems, School of Life Sciences, Northwest University, Xi'an, China (T-BJ)
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Dai ZM, Kang HF, Zhang WG, Li HB, Zhang SQ, Ma XB, Lin S, Wang M, Feng YJ, Liu K, Liu XH, Xu P, Dai ZJ. The Associations of Single Nucleotide Polymorphisms in miR196a2, miR-499, and miR-608 With Breast Cancer Susceptibility: A STROBE-Compliant Observational Study. Medicine (Baltimore) 2016; 95:e2826. [PMID: 26886638 PMCID: PMC4998638 DOI: 10.1097/md.0000000000002826] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRNAs) play an important role as regulators of tumor suppressors and oncogenes in cancer-related processes. Single nucleotide polymorphisms (SNPs) in miRNAs have been shown to be relevant to various different cancers, including breast cancer (BC). The aim of this study was to estimate the associations between miRNA-related gene polymorphisms (miR-196a2, miR-499, and miR-608) and the risk of BC in a Chinese population. Gene polymorphisms were analyzed in 1143 subjects (controls = 583; BC = 560). The 3 SNPs were genotyped using the Sequenom Mass-ARRAY platform. The associations between the SNP frequencies and BC were assessed by computing odds ratios (ORs) and 95% confidence intervals (95% CIs), as well as by applying Chi-square tests. The miR-196a2 (rs11614913) T allele was associated with a decreased risk of BC based on results from dominant (OR = 0.67, 95% CI = 0.52-0.86), recessive (OR = 0.65, 95% CI = 0.48-0.86), and allele models (OR = 0.73, 95% CI = 0.62-0.86). In contrast, the miR-499 (rs3746444) AG/GG genotypes were associated with an increased risk of BC (OR = 1.45, 95% CI = 1.10-1.91), and miR-608 (rs4919510) was not significantly associated with BC risk. Our study suggested that the polymorphisms of rs11614913 and rs3746444 may be associated with BC risk in Chinese individuals.
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Affiliation(s)
- Zhi-Ming Dai
- From the Department of Anesthesiology, Department of Hematology (Z-MD), Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an; Department of Oncology (H-FK, S-QZ, X-BM, SL, MW, Y-JF, KL, X-HL, PX, Z-JD), Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an; Department of Hematology (W-GZ), Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an; Department of Physiology and Pathophysiology (H-BL), Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an Jiaotong University Health Science Center, Xi'an, China
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Ma X, Kang H, Dai Z, Ma L, Jin Y, Wang X. Impact of the IGFBP3 A-202C polymorphism on susceptibility and clinicopathologic features of breast cancer. Biomed Pharmacother 2015; 71:108-11. [PMID: 25960224 DOI: 10.1016/j.biopha.2015.02.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 02/15/2015] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Insulin-like growth factor binding protein 3 (IGFBP3) plays an important role in cellular proliferation, differentiation, apoptosis, and mammary carcinogenesis. Genetic variations in IGFBP3 have been identified to influence the circulating IGFBP3 level. The present study determined the impact of an important promoter polymorphism (A-202C, rs2854744) on susceptibility and progression of breast cancer in a Chinese population. METHODS We genotyped the IGFBP3 A-202C polymorphism in a case-control study involving 465 breast cancer patients and 799 age-matched, cancer-free controls using the TaqMan method. Logistic regression was used to assess the genetic association between the occurrence and progression of breast cancer. RESULTS Compared with the wild genotype (-202AA), we found a statistically significant increased risk of breast cancer associated with the variant genotypes (CC vs. AA: OR=2.00, 95% CI=1.25-3.21; AC+CC vs. AA: OR=1.34, 95% CI=1.06-1.70). In the stratified analysis, the increased risk was more apparent among the subgroups of older subjects (OR=1.70, 95% CI=1.20-2.42). Furthermore, we found that patients carrying variant genotypes (AC+CC) had a significantly greater prevalence of large tumor size (OR=1.72, 95% CI=1.13-2.64; P=0.021). CONCLUSION Our results suggest that the functional IGFBP3 A-202C polymorphism may influence the susceptibility and progression of breast cancer in the Chinese population.
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Affiliation(s)
- Xiaobin Ma
- Department of Oncology, the Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, China
| | - Huafeng Kang
- Department of Oncology, the Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, China.
| | - Zhijun Dai
- Department of Oncology, the Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, China
| | - Li Ma
- Department of Oncology, the Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, China
| | - Yaofeng Jin
- Department of Oncology, the Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, China
| | - Xijing Wang
- Department of Oncology, the Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, China
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Yang X, Zhao F, Li YH, Huang M, Huang Y, Yi C. Lack of Association of the Cyclooxygenase-2 Gene 8473T>C Polymorphism with Breast Cancer Risk: a Meta-analysis. Asian Pac J Cancer Prev 2014; 15:9693-8. [DOI: 10.7314/apjcp.2014.15.22.9693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Li Q, Liu L, Liu Y, Zhou H, Yang Z, Yuan K, Min W. Five COX-2 gene polymorphisms and risk of breast cancer: an updated meta-analysis based on 19 case-control studies. Med Oncol 2014; 32:397. [PMID: 25433948 DOI: 10.1007/s12032-014-0397-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 11/20/2014] [Indexed: 12/14/2022]
Abstract
The correlationship between COX-2 gene polymorphisms and breast cancer has been wildly studied, but the results remain controversial. Hence, the present meta-analysis aimed to investigate the association between COX-2 SNPs (rs5275, rs20417, rs689466, rs5277, rs2206593) and risk of breast cancer. Data were collected from PubMed, Embase and China National Knowledge Infrastructure. Summary odds ratio (OR) with 95 % confidence interval (CI) was applied to assess the relationship. Heterogeneity test, sensitivity analysis and publication bias test were also performed. There were 17 articles that contained 19 studies in this research. Fourteen case-control studies with 15,007 breast cancer cases and 20,005 controls were concerning rs5275 polymorphism, and 8 case-control studies with 10,216 cases and 12,839 controls were about rs20417 polymorphism. Other three polymorphisms (rs689466, rs2206593, rs5277) were studied in 5, 3 and 3 studies, respectively. COX-2-rs20417 CC genotype was significantly associated with increased risk of breast cancer when comparing to G allele [ORs were 1.231 (1.050-1.444) for CC vs. GG, P = 0.01, 1.223 (1.045-1.432) for CC vs. G carrier, P = 0.01]. Furthermore, the results of the subgroup analysis by ethnicity suggested that C allele significantly contributed to the risk of breast cancer for Asians [1.459 (1.182-1.802) for GC vs. GG, 1.472 (1.201-1.805) for C carrier vs. GG]. However, no association was found for rs5275, rs689466, rs5277 and rs2206593 in all comparison modes. This meta-analysis indicated that the COX-2 rs20417 polymorphism contributed to genetic susceptibility of breast cancer. In contrast, COX-2 rs5275, rs689466, rs2206593 and rs5277 polymorphisms might be not associated with the risk of breast cancer.
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Affiliation(s)
- Qing Li
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China,
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Association of the three common SNPs of cyclooxygenase-2 gene (rs20417, rs689466, and rs5275) with the susceptibility of breast cancer: an updated meta-analysis involving 34,590 subjects. DISEASE MARKERS 2014; 2014:484729. [PMID: 25214704 PMCID: PMC4151597 DOI: 10.1155/2014/484729] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 07/17/2014] [Accepted: 07/25/2014] [Indexed: 11/17/2022]
Abstract
Several single nucleotide polymorphisms have been identified in cyclooxygenase-2 (COX-2) genes (e.g., −765 G>C (rs20417), −1195G>A (rs689466), and 8473 C>T (rs5275)). The association of these SNPs with the risk of different cancer types is still controversial. This study aims to evaluate the correlation between these SNPs and breast cancer risk in different ethnic groups. We have searched PubMed, Web of Knowledge, and Embase for relevant studies. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to estimate the strength of the associations. A total of 13 studies (15,330 cases and 19,260 controls) were eligible for meta-analysis. This meta-analysis showed that COX-2 rs20417 polymorphism was correlated with an increased risk of breast cancer in Caucasians, while rs689466 was associated with a decreased risk of breast cancer in Caucasians. The rs5275 polymorphism had no association with breast cancer risk.
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