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Traoré L, Savadogo M, Zouré AA, Kiendrebeogo TI, Soudre FMBTB, Dabre S, Traore ADD, Adico MDW, Lare T, Ouedraogo TWC, Ouedraogo RA, Ouattara AK, Yelemkoure ET, Sawadogo AY, Zongo N, Bambara HA, Nadembega CW, Djigma FW, Simpore J. Carrying SNP rs17506395 (T > G) in TP63 gene and CCR5Δ32 mutation associated with the occurrence of breast cancer in Burkina Faso. Open Life Sci 2024; 19:20220847. [PMID: 38585642 PMCID: PMC10998675 DOI: 10.1515/biol-2022-0847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 01/25/2024] [Accepted: 03/05/2024] [Indexed: 04/09/2024] Open
Abstract
Genetic alterations in the TP63 (GenBank: NC_000003.12, ID: 8626) and CCR5 (receptor 5 chemokine co-receptor) (GenBank: NC_000003.12, ID: 1234) genes may increase the risk of developing breast cancer. The aim of this study was to investigate the probable involvement of polymorphisms rs17506395 in the TP63 (tumour protein 63) gene and the CCR5Δ32 mutation in the occurrence of breast cancer in Burkina Faso. This case-control study included 72 patients and 72 controls. Genotyping of SNP rs17506395 (TP63) was performed by polymerase chain reaction-restriction fragment length polymorphism, and genotyping of the CCR5Δ32 mutation was performed by allele-specific oligonucleotide polymerase chain reaction. For SNP rs17506395 (TP63), the genotypic frequencies of wild-type homozygotes (TT) and heterozygotes (TG) were, respectively, 27.72 and 72.22% in cases and 36.11 and 63.89% in controls. No mutated homozygotes (GG) were observed. For the CCR5Δ32 mutation, the genotypic frequencies of wild-type homozygotes (WT/WT) and heterozygotes (WT/Δ32) were 87.5 and 13.5%, respectively, in the cases and 89.29 and 10.71%, respectively, in the controls. No mutated homozygotes (Δ32/Δ32) were observed. None of the polymorphisms rs17506395 of the TP63 gene (OR = 1.47, 95% CI = 0.69-3.17, P = 0.284) and the CCR5Δ32 mutation (OR = 1.32, 95% CI = 0.46-3.77; P = 0.79) were associated with the occurrence of breast cancer in this study.
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Affiliation(s)
- Lassina Traoré
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Mousso Savadogo
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Abdou Azaque Zouré
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
- Biomedical Research Laboratory (LaReBio), Biomedical and Public Health Department, Health Sciences Research Institute (IRSS/CNRST), 03 BP 7192Ouaga 03, Burkina Faso
| | - Touwendpoulimdé Isabelle Kiendrebeogo
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Fabienne Marie B. T. B. Soudre
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Laboratory Department, University Hospital Centre-Yalgado OUEDRAOGO, Joseph KI-ZERBO University, UFR/SDS, 03 BP 7021, Ouagadougou 03, Ouagadougou, Burkina Faso
| | - Soayebo Dabre
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Aida Djé Djénéba Traore
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Marc Donald Wilfried Adico
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Tilate Lare
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Teega-Wendé Clarisse Ouedraogo
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Rogomenoma Alice Ouedraogo
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
- Gaoua University Centre, NAZI BONI University, 01 BP 1091, Bobo-Dioulasso 01, Burkina Faso
| | - Abdoul Karim Ouattara
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
- Manga University Centre, Norbert ZONGO University, Koudougou, Burkina Faso
| | - Edwige T. Yelemkoure
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Alexis Yobi Sawadogo
- Gynecology Department, Yalgado Ouédraogo University Hospital, UFR/SDS, 03 BP 7021, Ouagadougou 03, Ouagadougou, Burkina Faso
| | - Nayi Zongo
- Department of Surgery, Visceral and Digestive Surgery Service, Yalgado Ouédraogo University Hospital, Joseph KI-ZERBO University, UFR/SDS 03 BP 7021, Ouagadougou 03, Ouagadougou, Burkina Faso
| | - Hierrhum Aboubacar Bambara
- Oncology Department, University Hospital Centre-BOGODOGO, Joseph KI-ZERBO University, UFR/SDS, 03 BP 7021, Ouagadougou 03, Ouagadougou, Burkina Faso
| | - Christelle W. Nadembega
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Florencia W. Djigma
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
| | - Jacques Simpore
- Laboratory of Molecular and Genetic Biology (LABIOGENE), Joseph KI-ZERBO University, 03 BP 7021, Ouagadougou 03, Burkina Faso
- Pietro Annigoni Biomolecular Research Centre (CERBA), 01 BP 364, Ouagadougou 01, Burkina Faso
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Yu J, Wang CG. Relationship between polymorphisms in homologous recombination repair genes RAD51 G172T、XRCC2 & XRCC3 and risk of breast cancer: A meta-analysis. Front Oncol 2023; 13:1047336. [PMID: 36761956 PMCID: PMC9903134 DOI: 10.3389/fonc.2023.1047336] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
Background Genetic variability in DNA double-strand break repair genes such as RAD51 gene and its paralogs XRCC2、XRCC3 may contribute to the occurrence and progression of breast cancer. To obtain a complete evaluation of the above association, we performed a meta-analysis of published studies. Methods Electronic databases, including PubMed, EMBASE, Web of Science, and Cochrane Library, were comprehensively searched from inception to September 2022. The Newcastle-Ottawa Scale (NOS) checklist was used to assess all included non-randomized studies. Odds ratios (OR) with 95% confidence intervals (CI) were calculated by STATA 16.0 to assess the strength of the association between single nucleotide polymorphisms (SNPs) in these genes and breast cancer risk. Subsequently, the heterogeneity between studies, sensitivity, and publication bias were performed. We downloaded data from The Cancer Genome Atlas (TCGA) and used univariate and multivariate Cox proportional hazard regression (CPH) models to validate the prognostic value of these related genes in the R software. Results The combined results showed that there was a significant correlation between the G172T polymorphism and the susceptibility to breast cancer in the homozygote model (OR= 1.841, 95% CI=1.06-3.21, P=0.03). Furthermore, ethnic analysis showed that SNP was associated with the risk of breast cancer in Arab populations in homozygous models (OR=3.52, 95% CI=1.13-11.0, P= 0.003). For the XRCC2 R188H polymorphism, no significant association was observed. Regarding polymorphism in XRCC3 T241M, a significantly increased cancer risk was only observed in the allelic genetic model (OR=1.05, 95% CI= 1.00-1.11, P=0.04). Conclusions In conclusion, this meta-analysis suggests that Rad51 G172T polymorphism is likely associated with an increased risk of breast cancer, significantly in the Arab population. The relationship between the XRCC2 R188H polymorphism and breast cancer was not obvious. And T241M in XRCC3 may be associated with breast cancer risk, especially in the Asian population.
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Polymorphic Variants in 5'-UTR Regions of the RAD51 Gene are Associated With RAD51 Expression and Triple-Negative Breast Cancer (TNBC): A Case-Control Study. Appl Immunohistochem Mol Morphol 2021; 29:270-276. [PMID: 33417321 DOI: 10.1097/pai.0000000000000900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/24/2020] [Indexed: 11/26/2022]
Abstract
Breast cancer is a heterogeneous disease at morphologic and molecular levels, which is considered the most commonly occurring cancer in women. RAD51, a DNA-repairing protein, involves homologous recombination and has a vital role in genome stability. Polymorphism of the RAD51 gene, and its overexpression, has been proposed to be associated with the development of breast cancer. Overexpression of RAD51 in many types of human cancer including metastatic breast cancer may signify its potential use as a biomarker. Considering the numerous reports on the role of the 5'-UTR-RAD51 polymorphism in breast cancer, this study aimed to investigate the utility of RAD51 gene expression and its variants G135C and G172T as a possible foretelling factor of breast cancer development. DNA sequencing and immunohistochemistry of RAD51 were conducted on 103 samples from patients diagnosed with sporadic breast cancer and 80 samples from a control group. The results demonstrated that the RAD51 variants, G135C and G172T, were significantly presented in the breast cancer tissue compared with the control group. RAD51 expression was mainly shown in the cytoplasm of malignant cells (56% of cases) and significantly correlated with p53 and G135C, C135C variants. Moreover, the occurrence of the G172T variant was significantly associated with the expression of estrogen receptor. Interestingly, 21/26 (81%) of the triple-negative breast cancer showed G135C and C135C genotypes that were significantly associated with the expression of RAD51 (73%). In conclusion, the G135C and C135C variants together with the cytoplasmic expression of RAD51 may have clinical potential as a prognostic predictor for breast cancer development and aggressiveness.
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Yang F, Mu X, Bian C, Zhang H, Yi T, Zhao X, Lin X. Association of excision repair cross-complimentary group 1 gene polymorphisms with breast and ovarian cancer susceptibility. J Cell Biochem 2019; 120:15635-15647. [PMID: 31081240 DOI: 10.1002/jcb.28830] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/20/2019] [Accepted: 02/28/2019] [Indexed: 12/13/2022]
Abstract
The role of excision repair cross-complimentary group 1 (ERCC1) gene polymorphisms in breast and ovarian cancer development has long been controversial and existing data were inconsistent. Here, we conducted a comprehensive meta-analysis to better clarify the association. Case-control studies published from December 2008 to November 2018 were assessed. The statistical analyses of the pooled odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) were calculated. Fifteen articles with 24 case-control studies and 3 ERCC1 polymorphisms were enrolled. A total of 20 923 participants including 9896 cases and 11 027 controls were analyzed. The results showed that C to T variation in the ERCC1 rs11615 (C/T) polymorphisms was correlated with breast cancer susceptibility (T vs C: OR = 1.19, 95% CI = 1.02-1.38; TT + CT vs CC: OR = 1.24, 95% CI = 1.12-1.36). ERCC1 rs3212986 (C/A) polymorphisms posed an increased risk for breast and ovarian cancer as whole (A vs C: OR = 1.12, 95% CI = 1.01-1.25; AA + CA vs CC: OR = 1.11, 95% CI = 1.02-1.22), and presented especially higher risk for ovarian cancer (A vs C: OR = 1.31, 95% CI = 1.05-1.63; AA vs CA + CC: OR = 1.66, 95% CI = 1.12-2.47; AA vs CC: OR = 1.72, 95% CI = 1.12-2.64). Meanwhile, neither overall group analyses nor stratified analyses displayed any association of ERCC1 rs2298881 (A/C) polymorphisms in breast and ovarian cancer susceptibility. This meta-analysis suggested that ERCC1 rs11615 (C/T) polymorphisms were associated with breast cancer susceptibility and rs3212986 (C/A) polymorphisms were especially correlated with ovarian cancer risk. More case-control studies with well-adjusted data and diverse populations are essential for validation of our conclusion.
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Affiliation(s)
- Fan Yang
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P R China
| | - Xiyan Mu
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P R China
| | - Ce Bian
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P R China
| | - Huan Zhang
- Department of Obstetrics and Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P R China
| | - Tao Yi
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P R China
| | - Xia Zhao
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P R China
| | - Xiaojuan Lin
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P R China
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Garcia JA, Kalacas NA, Sy Ortin T, Ramos MC, Albano PM. XRCC4 c.1394G>T Single Nucleotide Polymorphisms and
Breast Cancer Risk among Filipinos. Asian Pac J Cancer Prev 2019; 20:1097-1101. [PMID: 31030479 PMCID: PMC6948885 DOI: 10.31557/apjcp.2019.20.4.1097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Background: The identification of cancer-associated single nucleotide polymorphisms (SNP) and mutation genes is a promising approach in recognizing individuals who are at risk of developing cancer. Hence, this study was conducted to determine the association between XRCC4 c.1394G>T SNP and breast cancer development among Filipinos. Methods: Genotyping for XRCC4 c.1394G>T SNP was performed on breast cancer patients (n=103) and their age- and sex- matched clinically healthy controls (n=103) by polymerase chain reaction – restriction fragment length polymorphism. Results: Significant difference in genotype (p=0.007) and allele (p=0.003) frequencies in XRCC4 c.1394G>T was observed between the breast cancer cases and controls. Carriers of the XRCC4 c.1394 G>T genotype were observed to have significantly higher risk of developing breast cancer compared to individuals with T/T genotype (OR=2.67, 95% CI: 1.36 – 5.25). XRCC4 c.1394G>T combined with passive smoking may also significantly increase risk of breast cancer (OR=14.73; 95% CI= 9.88-18.86). Conclusion: XRCC4 c. 1394G>T may be associated with breast cancer development among Filipinos.
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Affiliation(s)
- Julius Adrie Garcia
- The Graduate School, University of Santo Tomas, Manila, Philippines. ,Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Noel Angelo Kalacas
- The Graduate School, University of Santo Tomas, Manila, Philippines. ,Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Teresa Sy Ortin
- The Graduate School, University of Santo Tomas, Manila, Philippines. ,University of Santo Tomas Hospital, Benavides Cancer Institute, Manila, Philippines
| | - Maria Cristina Ramos
- The Graduate School, University of Santo Tomas, Manila, Philippines. ,Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines.,College of Science, University of Santo Tomas, Manila, Philippines
| | - Pia Marie Albano
- The Graduate School, University of Santo Tomas, Manila, Philippines. ,Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines.,College of Science, University of Santo Tomas, Manila, Philippines
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Tsai CW, Chang WS, Shen TC, Su CH, Wang HC, Liu LC, Bau DT. Contribution of excision repair cross-complementing group 1 genotypes to triple negative breast cancer risk. PLoS One 2018; 13:e0202112. [PMID: 30096175 PMCID: PMC6086438 DOI: 10.1371/journal.pone.0202112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 07/27/2018] [Indexed: 12/31/2022] Open
Abstract
Compared with other subgroups of breast cancer, triple negative breast cancer (TNBC) is considered to be the one with the greatest invasiveness and metastatic mobility, and the highest recurrence rate. Considering the lack of predictive markers for TNBC, we aimed to examine the contribution of excision repair cross complementing-group 1 (ERCC1) genotypes to TNBC. The rs11615 and rs3212986 of ERCC1 were investigated and evaluated for their associations with susceptibility to breast cancer, especially TNBC, in Taiwan. In this study, 1,232 breast cancer patients (104 were TNBC) and 1,232 healthy controls were recruited and their genotypes at ERCC1 rs11615 and rs3212986 were revealed by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) analysis. Our results indicated that genotypes of ERCC1 rs11615 (Ptrend = 2.2*10E-9), but not rs3212986 (Ptrend = 0.6181), were associated with breast cancer risk. In the allelic frequency distribution analysis, breast cancer patients carried the T allele of ERCC1 rs11615 a higher rate than the control subjects, further supporting the idea that ERCC1 rs11615 TT genotype is positively associated with breast cancer susceptibility. More importantly, the frequency of the ERCC1 rs11615 TT genotype was even higher among TNBC patients than among other subtypes of breast cancer patients (P = 0.0001, odds ratio = 1.73, 95% confidence interval = 1.15-2.63). The genotypes of ERCC1 rs11615 were not associated with Ki67 status. Our findings firstly show that the T allele of ERCC1 rs11615 can serve as a predictive biomarker for breast cancer and TNBC. We believe that ERCC1 could serve as a target for personalized treatment of breast cancer, especially for TNBC.
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Affiliation(s)
- Chia-Wen Tsai
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Wen-Shin Chang
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Te-Chun Shen
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - Chen-Hsien Su
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Hwei-Chung Wang
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Liang-Chih Liu
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Da-Tian Bau
- Terry Fox Cancer Research Laboratory, Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
- * E-mail:
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ERCC1 rs11615 polymorphism increases susceptibility to breast cancer: a meta-analysis of 4547 individuals. Biosci Rep 2018; 38:BSR20180440. [PMID: 29752341 PMCID: PMC6013698 DOI: 10.1042/bsr20180440] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 05/06/2018] [Accepted: 05/10/2018] [Indexed: 12/12/2022] Open
Abstract
Excision repair cross-complementation group 1 (ERCC1), a DNA repair protein, is vital for maintaining genomic fidelity and integrity. Despite the fact that a mounting body of case-control studies has concentrated on investigating the association of the ERCC1 rs11615 polymorphism and breast cancer risk, there is still no consensus on it. We conducted the current meta-analysis of all eligible articles to reach a much more explicit conclusion on this ambiguous association. A total of seven studies involving 2354 breast cancer cases and 2193 controls were elaborately selected for this analysis from the Embase, EBSCO, PubMed, WanFang, and China National Knowledge Infrastructure (CNKI) databases. Pooled odds ratios (ORs) and their 95% confidence intervals (CIs) were estimated in our meta-analysis. We found that the ERCC1 rs11615 polymorphism was significantly associated with breast cancer risk under all genetic models. When excluded, the studies that deviated from Hardy-Weinberg equilibrium (HWE), the pooled results of what remained significantly increase the risk of breast cancer under the allele model (OR = 1.14, 95% CI = 1.02-1.27, P=0.02), heterozygote model (OR = 1.24, 95% CI = 1.06-1.44, P=0.007), and dominant model (OR = 1.21, 95% CI = 1.05-1.41, P=0.01). This increased breast cancer risk was found in Asian population as well as under the heterozygote model (OR = 1.24, 95% CI = 1.05-1.48, P=0.013) and dominant model (OR = 1.20, 95% CI = 1.02-1.42, P=0.03). Our results suggest that the ERCC1 rs11615 polymorphism is associated with breast cancer susceptibility, and in particular, this increased risk of breast cancer existence in Asian population.
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Singh PK, Mistry KN, Chiramana H, Rank DN, Joshi CG. Exploring the deleterious SNPs in XRCC4 gene using computational approach and studying their association with breast cancer in the population of West India. Gene 2018; 655:13-19. [PMID: 29452234 DOI: 10.1016/j.gene.2018.02.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 12/21/2017] [Accepted: 02/12/2018] [Indexed: 01/24/2023]
Abstract
Non-homologous end joining (NHEJ) pathway has pivotal role in repair of double-strand DNA breaks that may lead to carcinogenesis. XRCC4 is one of the essential proteins of this pathway and single-nucleotide polymorphisms (SNPs) of this gene are reported to be associated with cancer risks. In our study, we first used computational approaches to predict the damaging variants of XRCC4 gene. Tools predicted rs79561451 (S110P) nsSNP as the most deleterious SNP. Along with this SNP, we analysed other two SNPs (rs3734091 and rs6869366) to study their association with breast cancer in population of West India. Variant rs3734091 was found to be significantly associated with breast cancer while rs6869366 variant did not show any association. These SNPs may influence the susceptibility of individuals to breast cancer in this population.
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Affiliation(s)
- Preety K Singh
- Ashok and Rita Patel Institute of Integrated Study and Research in Biotechnology and Allied Sciences (ARIBAS), New Vallabh Vidyanagar, Affiliated to Sardar Patel University, Anand, Gujarat 388121, India
| | - Kinnari N Mistry
- Ashok and Rita Patel Institute of Integrated Study and Research in Biotechnology and Allied Sciences (ARIBAS), New Vallabh Vidyanagar, Affiliated to Sardar Patel University, Anand, Gujarat 388121, India.
| | - Haritha Chiramana
- Manibhai Shivabhai Patel Cancer Centre, Shree Krishna Hospital, Karamsad, Anand, Gujarat, India
| | - Dharamshi N Rank
- Department of Animal Breeding and Genetics, Anand Agriculture University, Anand, Gujarat, India
| | - Chaitanya G Joshi
- Department of Animal Biotechnology, Anand Agriculture University, Anand, Gujarat, India
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Sirisena ND, Adeyemo A, Kuruppu AI, Neththikumara N, Samaranayake N, Dissanayake VHW. Genetic determinants of sporadic breast cancer in Sri Lankan women. BMC Cancer 2018; 18:180. [PMID: 29433565 PMCID: PMC5809862 DOI: 10.1186/s12885-018-4112-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 02/09/2018] [Indexed: 11/25/2022] Open
Abstract
Background While a range of common genetic variants have been identified to be associated with risk of sporadic breast cancer in several Western studies, little is known about their role in South Asian populations. Our objective was to examine the association between common genetic variants in breast cancer related genes and risk of breast cancer in a cohort of Sri Lankan women. Methods A case-control study of 350 postmenopausal women with breast cancer and 350 healthy postmenopausal women was conducted. Genotyping using the iPLEX GOLD assay was done for 56 haplotype-tagging single nucleotide polymorphisms (SNPs) in 36 breast cancer related genes. Testing for association was done using an additive genetic model. Odds ratios and 95% confidence intervals were calculated using adjusted logistic regression models. Results Four SNPs [rs3218550 (XRCC2), rs6917 (PHB), rs1801516 (ATM), and rs13689 (CDH1)] were significantly associated with risk of breast cancer. The rs3218550 T allele and rs6917 A allele increased breast cancer risk by 1.5-fold and 1.4-fold, respectively. The CTC haplotype defined by the SNPs rs3218552|rs3218550|rs3218536 on chromosome 7 (P = 0.0088) and the CA haplotype defined by the SNPs rs1049620|rs6917 on chromosome 17 (P = 0.0067) were significantly associated with increased risk of breast cancer. The rs1801516 A allele and the rs13689 C allele decreased breast cancer risk by 0.6-fold and 0.7-fold, respectively. Conclusions These findings suggest that common genetic polymorphisms in the XRCC2, PHB, CDH1 and ATM genes are associated with risk of breast cancer among Sri Lankan postmenopausal women. The exact biological mechanisms of how these variants regulate overall breast cancer risk need further evaluation using functional studies. Electronic supplementary material The online version of this article (10.1186/s12885-018-4112-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Adebowale Adeyemo
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, Bethesda, MD, USA
| | - Anchala I Kuruppu
- Human Genetics Unit, Faculty of Medicine, University of Colombo, Kynsey Road, Colombo 8, Sri Lanka
| | - Nilaksha Neththikumara
- Human Genetics Unit, Faculty of Medicine, University of Colombo, Kynsey Road, Colombo 8, Sri Lanka
| | - Nilakshi Samaranayake
- Department of Parasitology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - Vajira H W Dissanayake
- Human Genetics Unit, Faculty of Medicine, University of Colombo, Kynsey Road, Colombo 8, Sri Lanka
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10
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Pongsavee M, Wisuwan K, Tiwawech D. Association between ERCC1 Polymorphism and the Risk and Clinicopathological Features of Breast Cancer in Thai Women in the Lower Northeastern Region. Asian Pac J Cancer Prev 2017; 18:2999-3002. [PMID: 29172271 PMCID: PMC5773783 DOI: 10.22034/apjcp.2017.18.11.2999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Background: Breast cancer is a major public health problem around the world, including Thailand and it has the highest ranking among female cancer. Currently, the diversity or polymorphism of ERCC1 gene (excision repair cross-complementary group 1 gene or ERCC1) was reported to associate with an increased risk of breast cancer. This study aims to investigate the relationship between ERCC1 polymorphism and the breast cancer risk in the lower northeastern region women of Thailand. Materials and Methods: One hundred fifty one samples from breast cancer patients and 120 samples from healthy control group were analysed. Genomic DNA was extracted from white blood cell of all samples. The real-time polymerase chain reaction (qPCR) was used to demonstrate genetic polymorphism of ERCC1. Results: The results showed that the ERCC1 rs11615 polymorphism variant AG was associated with an increased risk of breast cancer. This study demonstrated that the frequency of ERCC1 rs11615 in patients with breast cancer was higher than healthy control group. The ERCC1 polymorphism variant AG carrier presented 3.53-folds high risk of breast cancer [odds ratio (OR) = 3.53, 95% CI = 1.61-7.74, P = 0.001]. In addition, when age, menopause period, number of child, smoking and alcohol drinking were adjusted, the ERCC1 rs11615 variant AG carrier was associated with increased breast cancer risk to 3.97 folds, with OR = 3.79, 95% CI = 1.62-8.84, P = 0.002. Conclusions: This study showed that ERCC1 rs11615 genotype AG was associated with breast cancer risk in the lower northeastern region women of Thailand.
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Affiliation(s)
- Malinee Pongsavee
- Department of Medical Technology, Faculty of Allied Health Sciences, Thammasat University, Patumthani, Thailand.
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11
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Li S, Zheng Y, Tian T, Wang M, Liu X, Liu K, Zhai Y, Dai C, Deng Y, Li S, Dai Z, Lu J. Pooling-analysis on hMLH1 polymorphisms and cancer risk: evidence based on 31,484 cancer cases and 45,494 cancer-free controls. Oncotarget 2017; 8:93063-93078. [PMID: 29190978 PMCID: PMC5696244 DOI: 10.18632/oncotarget.21810] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 09/08/2017] [Indexed: 01/18/2023] Open
Abstract
To elucidate the veritable relationship between three hMLH1 polymorphisms (rs1800734, rs1799977, rs63750447) and cancer risk, we performed this meta-analysis based on overall published data up to May 2017, from PubMed, Web of knowledge, VIP, WanFang and CNKI database, and the references of the original studies or review articles. 57 publications including 31,484 cancer cases and 45,494 cancer-free controls were obtained. The quality assessment of six articles obtained a summarized score less than 6 in terms of the Newcastle-Ottawa Scale (NOS). All statistical analyses were calculated with the software STATA (Version 14.0; Stata Corp, College Station, TX). We found all the three polymorphisms can enhance overall cancer risk, especially in Asians, under different genetic comparisons. In the subgroup analysis by cancer type, we found a moderate association between rs1800734 and the risk of gastric cancer (allele model: OR = 1.14, P = 0.017; homozygote model: OR = 1.33, P = 0.019; dominant model: OR = 1.27, P = 0.024) and lung cancer in recessive model (OR = 1.27, P = 0.024). The G allele of rs1799977 polymorphism was proved to connect with susceptibility of colorectal cancer (allele model: OR = 1.21, P = 0.023; dominate model: OR = 1.32, P <0.0001) and prostate cancer (dominate model: OR = 1.36, P <0.0001). Rs63750447 showed an increased risk of colorectal cancer, endometrial cancer and gastric cancer under all genetic models. These findings provide evidence that hMLH1 polymorphisms may associate with cancer risk, especially in Asians.
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Affiliation(s)
- Sha Li
- Clinical Research Center, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.,Department of Pharmacy, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Yi Zheng
- Clinical Research Center, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.,Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Tian Tian
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Meng Wang
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Xinghan Liu
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Kang Liu
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Yajing Zhai
- Clinical Research Center, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Cong Dai
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Yujiao Deng
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Shanli Li
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Zhijun Dai
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Jun Lu
- Clinical Research Center, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
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12
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Hsieh YC, Cho EC, Tu SH, Wu CH, Hung CS, Hsieh MC, Su CT, Liu YR, Lee CH, Ho YS, Chiou HY. MSH2 rs2303425 Polymorphism is Associated with Early-Onset Breast Cancer in Taiwan. Ann Surg Oncol 2016; 24:603-610. [DOI: 10.1245/s10434-016-5168-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Indexed: 11/18/2022]
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13
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Al-Zoubi MS, Mazzanti CM, Zavaglia K, Hamad MA, Armogida I, Lisanti MP, Bevilacqua G. Homozygous T172T and Heterozygous G135C Variants of Homologous Recombination Repairing Protein RAD51 are Related to Sporadic Breast Cancer Susceptibility. Biochem Genet 2015; 54:83-94. [DOI: 10.1007/s10528-015-9703-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 11/21/2015] [Indexed: 12/30/2022]
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14
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Niu L, Li S, Liang H, Li H. The hMLH1 -93G>A Polymorphism and Risk of Ovarian Cancer in the Chinese Population. PLoS One 2015; 10:e0135822. [PMID: 26275295 PMCID: PMC4537278 DOI: 10.1371/journal.pone.0135822] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 07/27/2015] [Indexed: 12/31/2022] Open
Abstract
Background As a mismatch repair (MMR) gene, hMLH1 plays an important role in the maintenance of chromosomal integrity. Several studies have investigated the associations of hMLH1 -93G>A (rs1800734) and Ile219Val (rs1799977) in diverse tumor types with discordant results, but their roles in ovarian cancer in the Chinese population remains to be elucidated. Methods In a case-control analysis, we assessed the association between these two polymorphisms and ovarian cancer risk in 421 ovarian cancer patients and 689 control subjects in the Chinese population using logistic regression. Results We found that the variant hMLH1 genotypes (-93AA and AG) are associated with risk of ovarian cancer (adjusted odds ratio [OR] = 2.02, 95% confidence interval [CI] = 1.42–2.89) compared with the -93GG genotype. The A allele increases the risk of ovarian cancer in a dose-dependent manner (P<10−4). Functional test showed that -93A allele increased hMLH1 promoter transcriptional activity and the luciferase activity. However, no significant difference was found in the genotype frequencies at the Ile219Val site between the cases and controls. Conclusions These findings indicate that the -93G>A polymorphism in hMLH1 may affect ovarian cancer susceptibility in the Chinese population.
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Affiliation(s)
- Leilei Niu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Shumin Li
- Department of Gynecology Oncology, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Huamao Liang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Hua Li
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- Department of Gynecology Oncology, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, China
- * E-mail:
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15
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Polymorphisms of homologous recombination RAD51, RAD51B, XRCC2, and XRCC3 genes and the risk of prostate cancer. Anal Cell Pathol (Amst) 2015; 2015:828646. [PMID: 26339569 PMCID: PMC4538310 DOI: 10.1155/2015/828646] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 07/10/2015] [Accepted: 07/15/2015] [Indexed: 02/06/2023] Open
Abstract
Genetic polymorphisms in DNA repair genes may induce individual variations in DNA repair capacity, which may in turn contribute to the risk of cancer developing. Homologous recombination repair (HRR) plays a critical role in maintaining chromosomal integrity and protecting against carcinogenic factors. The aim of the present study was to evaluate the relationship between prostate cancer risk and the presence of single nucleotide polymorphisms (SNPs) in the genes involved in HRR, that is, RAD51 (rs1801320 and rs1801321), RAD51B (rs10483813 and rs3784099), XRCC2 (rs3218536), and XRCC3 (rs861539). Polymorphisms were analyzed by PCR-RFLP and Real-Time PCR in 101 patients with prostate adenocarcinoma and 216 age- and sex-matched controls. A significant relationship was detected between the RAD51 gene rs1801320 polymorphism and increased prostate cancer risk. Our results indicate that the RAD51 gene rs1801320 polymorphism may contribute to prostate cancer susceptibility in Poland.
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16
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Zhang BB, Wang DG, Xuan C, Sun GL, Deng KF. Genetic 135G/C polymorphism of RAD51 gene and risk of cancer: a meta-analysis of 28,956 cases and 28,372 controls. Fam Cancer 2015; 13:515-26. [PMID: 24859942 DOI: 10.1007/s10689-014-9729-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The RAD51 gene is essential for the repair of damaged DNA related to tumor development. Although a number of genetic studies have attempted to link the 135G/C polymorphism of RAD51 gene to the risk of cancer, the results were inconclusive. The present study aimed at investigating the pooled association using the more comprehensive meta-analysis. The PubMed, EBSCO, and BIOSIS databases were searched to identify eligible studies which were published in English before March 2014. Data were extracted using standardized methods. The association was assessed by odds ratio (OR) with 95 % confidence interval (CI). Begg's test was used to measure publication bias. Sensitivity analyses were also performed to assess the stability of the results. A total of 45 eligible studies with 28,956 patients and 28,372 controls were included in this meta-analysis. Overall, significant association was detected between 135G/C polymorphism and increased cancer risk (C allele vs. G allele: OR 1.23, 95 % CI 1.18-1.28; CC vs. GG: OR 2.41, 95 % CI 2.12-2.74; CC vs. CG: OR 3.86, 95 % CI 3.41-4.37; recessive model: OR 3.57, 95 % CI 3.19-4.00). In further stratified analysis, significantly elevated cancer risk was observed among Caucasians but not Asians. Subgroup analysis by different cancers also showed their significant associations in breast cancer, hematologic malignances, ovarian cancer, colorectal cancer and endometrial cancer, but not in head and neck cancer. Our results indicated that the RAD51 135G/C polymorphism was a candidate for susceptibility of cancer. The effect of the variants on the expression levels and the possible functional role of the variants in different cancers should be addressed in further studies.
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Affiliation(s)
- Bei-Bei Zhang
- Graduate School of Medicine, Mie University, Tsu, Mie, Japan
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17
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RAD51 135G>C substitution increases breast cancer risk in an ethnic-specific manner: a meta-analysis on 21,236 cases and 19,407 controls. Sci Rep 2015; 5:11588. [PMID: 26108708 PMCID: PMC4479800 DOI: 10.1038/srep11588] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 04/30/2015] [Indexed: 11/08/2022] Open
Abstract
RAD51 is a homolog of bacterial RecA protein, which plays an important role in preserving stability of the genome. RAD51 interacts with BRCA1 and BRCA2 for homologous recombination repair. A functional polymorphism (135G > C) in the RAD51 gene has been a subject of great interest, which is evidenced by at least 28 case-control studies and eight meta-analyses undertaken on this polymorphism till now. We undertook a meta-analysis on RAD51 135G > C data for 21236 cases and 19407 controls pooled from 28 studies on breast cancer in women. Pooled data analysis suggested a significant association of the substitution with breast cancer in the recessive model (GG + GC versus CC) and in the co-dominant models comparing GG versus CC and GC versus CC. Analysis of the results suggested that ‘CC’ genotype is a significant breast cancer risk factor in comparison to ‘GG’ and ‘GC’ genotypes. We also undertook pooled analyses on different ethnic groups and found that ‘CC’ was a strong risk factor in Caucasians, but not in East-Asians and populations of mixed ethnicity. In conclusion, the RAD51 135G > C substitution in the homozygous form (CC) increases the risk of breast cancer in an ethnic-specific manner.
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18
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Single Nucleotide Polymorphisms (SNPs) of RAD51-G172T and XRCC2-41657C/T Homologous Recombination Repair Genes and the Risk of Triple- Negative Breast Cancer in Polish Women. Pathol Oncol Res 2015; 21:935-40. [PMID: 25743260 PMCID: PMC4550649 DOI: 10.1007/s12253-015-9922-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Accepted: 02/20/2015] [Indexed: 12/19/2022]
Abstract
Double strand DNA breaks are the most dangerous DNA damage which, if non-repaired or misrepaired, may result in genomic instability, cancer transformation or cell death. RAD51 and XRCC2 encode proteins that are important for the repair of double-strand DNA breaks by homologous recombination. Therefore, genetic variability in these genes may contribute to the occurrence and progression of triple-negative breast cancer. The polymorphisms of the XRCC2 gene -41657C/T (rs718282) and of the RAD51 gene, −172G/T (rs1801321), were investigated by PCR-RFLP in 70 patients with triple-negative breast cancer and 70 age- and sex matched non-cancer controls. The obtained results demonstrated a significant positive association between the RAD51 T/T genotype and TNBC, with an adjusted odds ratio (OR) of 4.94 (p = 0.001). The homozygous T/T genotype was found in 60 % of TNBC cases and in 14 % of the used controls. Variant 172 T allele of RAD51 increased cancer risk (OR = 2.81 (1.72–4.58), p < .0001). No significant associations were observed between -41657C/T genotype of XRCC2 and the incidence of TNBC. There were no significant differences between the distribution of XRCC2 -41657C/T genotypes in the subgroups assigned to histological grades. The obtained results indicate that the polymorphism of RAD51, but not of XRCC2 gene, may be positively associated with the incidence of triple-negative breast carcinoma in the population of Polish women.
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Nassiri M, Kooshyar MM, Roudbar Z, Mahdavi M, Doosti M. Genes and SNPs associated with non-hereditary and hereditary colorectal cancer. Asian Pac J Cancer Prev 2015; 14:5609-14. [PMID: 24289550 DOI: 10.7314/apjcp.2013.14.10.5609] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Colorectal cancer is the third most common cancer in both men and women in the world and the second leading cause of cancer-related deaths. The incidence of colorectal cancer has increased in Iran in the past three decades and is now considered as a serious problem for our society. This cancer has two types hereditary and non-hereditary, 80% of cases being the latter. Considering that the relationship between SNPs with diseases is a concern, many researchers believed that they offer valuable markers for identifying genes responsible for susceptibility to common diseases. In some cases, they are direct causes of human disease. One SNP can increase risk of cancer, but when considering the rate of overlap and frequency of DNA repair pathways, it might be expected that SNP alone cannot affect the final result of cancer, although several SNPs together can exert a significant influence. Therefore identification of these SNPs is very important. The most important loci which include mutations are: MLH1, MSH2, PMS2, APC, MUTYH, SMAD7, STK11, XRCC3, DNMT1, MTHFR, Exo1, XRCC1 and VDR. Presence of SNPs in these genes decreases or increases risk of colorectal cancer. MATERIALS AND METHODS In this article we reviewed the Genes and SNPs associated with non-hereditary and hereditary of colorectal cancer that recently were reported from candidate gene y, meta-analysis and GWAS studies. RESULTS As with other cancers, colorectal cancer is associated with SNPs in gene loci. Generally, by exploring SNPs, it is feasible to predict the risk of developing colorectal cancer and thus establishing proper preventive measures. CONCLUSIONS SNPs of genes associated with colorectal cancer can be used as a marker SNP panel as a potential tool for improving cancer diagnosis and treatment planning.
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Affiliation(s)
- Mohammadreza Nassiri
- Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, Iran E-mail :
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20
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Kayani MA, Khan S, Baig RM, Mahjabeen I. Association of RAD 51 135 G/C, 172 G/T and XRCC3 Thr241Met Gene Polymorphisms with Increased Risk of Head and Neck Cancer. Asian Pac J Cancer Prev 2015; 15:10457-62. [DOI: 10.7314/apjcp.2014.15.23.10457] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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21
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Shadrina AS, Ermolenko NA, Boyarskikh UA, Sinkina TV, Lazarev AF, Petrova VD, Filipenko ML. Polymorphisms in DNA repair genes and breast cancer risk in Russian population: a case-control study. Clin Exp Med 2014; 16:21-8. [PMID: 25537147 DOI: 10.1007/s10238-014-0329-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 12/07/2014] [Indexed: 01/22/2023]
Abstract
Genetic variation in DNA repair genes can alter an individual's capacity to repair damaged DNA and influence the risk of cancer. We tested seven polymorphisms in DNA repair genes XRCC1, ERCC2, XRCC3, XRCC2, EXOI and TP53 for a possible association with breast cancer risk in a sample of 672 case and 672 control Russian women. An association was observed for allele A of the polymorphism XRCC1 (R399Q) rs25487 (co-dominant model AA vs. GG: OR 1.76, P = 0.003; additive model OR 1.28, P = 0.005; dominant model: OR 1.29, P = 0.03; recessive model OR 1.63, P = 0.008). Allele T of the polymorphism ERCC2 (D312N) rs1799793 was also associated with breast cancer risk (co-dominant model TT vs. CC: OR 1.43, P = 0.04; additive model OR 1.21, P = 0.02; dominant model: OR 1.30, P = 0.02), but the association became insignificant after applying Bonferroni correction. No association with breast cancer was found for the remaining SNPs. In summary, our study provides evidence that polymorphisms in DNA repair genes may play a role in susceptibility to breast cancer in the population of ethnical Russians.
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Affiliation(s)
- Alexandra S Shadrina
- Institute of Chemical Biology and Fundamental Medicine, Lavrentjeva, 8, 630090, Novosibirsk, Russia. .,Novosibirsk State University, Pirogova Street, 2, 630090, Novosibirsk, Russia.
| | - Natalia A Ermolenko
- Institute of Chemical Biology and Fundamental Medicine, Lavrentjeva, 8, 630090, Novosibirsk, Russia
| | - Uljana A Boyarskikh
- Institute of Chemical Biology and Fundamental Medicine, Lavrentjeva, 8, 630090, Novosibirsk, Russia.,Novosibirsk State University, Pirogova Street, 2, 630090, Novosibirsk, Russia
| | - Tatiana V Sinkina
- Altai Branch of the Russian Blokhin Cancer Research Centre, Nikitina Street, 77, 656049, Barnaul, Russia
| | - Alexandr F Lazarev
- Altai Branch of the Russian Blokhin Cancer Research Centre, Nikitina Street, 77, 656049, Barnaul, Russia
| | - Valentina D Petrova
- Altai Branch of the Russian Blokhin Cancer Research Centre, Nikitina Street, 77, 656049, Barnaul, Russia
| | - Maxim L Filipenko
- Institute of Chemical Biology and Fundamental Medicine, Lavrentjeva, 8, 630090, Novosibirsk, Russia.,Novosibirsk State University, Pirogova Street, 2, 630090, Novosibirsk, Russia.,Kazan Federal University, Kremlyovskaya street, 18, 420008, Kazan, Republic of Tatarstan, Russia
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The RAD51 135G>C polymorphism is related to the effect of adjuvant therapy in early breast cancer. J Cancer Res Clin Oncol 2014; 141:797-804. [PMID: 25354554 DOI: 10.1007/s00432-014-1859-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 10/19/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE RAD51, a central player in the response to DNA damage, has been suspected to contribute to tumour resistance to therapy. A single-nucleotide polymorphism, RAD51 135G>C, in the untranslated region of the RAD51 gene elevates breast cancer risk among BRCA2 carriers. In this study, it was investigated whether this polymorphism is related to prognosis of breast cancer and RAD51 protein expression and whether it is indicative of resistance to radiotherapy or cyclophosphamide/methotrexate/5-fluorouracil (CMF) chemotherapy. PATIENTS AND METHODS We genotyped 306 patients with early breast cancer, who were randomised to receive post-operative radiotherapy or CMF chemotherapy, for the RAD51 135G>C polymorphism. RAD51 protein expression was evaluated with immunohistochemistry. RESULTS 15.4 % of the patients had at least one C-allele (three were C homozygotes). There was no correlation between genotype and protein expression. Patients who were G homozygotes benefitted from radiotherapy with decreased risk of local recurrences (RR = 0.32, 95 % C.I. 0.16-0.64, p = 0.001). CMF chemotherapy reduced the risk of distant recurrence for patients carrying at least one C-allele (RR = 0.29, 95 % C.I. 0.10-0.88, p = 0.03), whereas G homozygotes had no benefit from chemotherapy. There was a significant interaction between chemotherapy and genotype (p = 0.02). CONCLUSION The results suggest that the RAD51 135G>C polymorphism predicts CMF chemotherapy effect in early breast cancer.
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Xie S, Shan XF, Shang K, Xu H, He J, Cai ZG. Relevance of LIG4 gene polymorphisms with cancer susceptibility: evidence from a meta-analysis. Sci Rep 2014; 4:6630. [PMID: 25314918 PMCID: PMC4197418 DOI: 10.1038/srep06630] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 09/29/2014] [Indexed: 02/07/2023] Open
Abstract
Polymorphisms of LIG4 gene may influence DNA repair ability, thus altering the genetic stability and resulting in carcinogenesis. A growing number of studies have investigated the relevance of LIG4 T9I (rs1805388) and D501D (rs1805386) polymorphisms with cancer risk, however, the results are conflicting. To obtain a comprehensive conclusion, we searched relevant literatures from PubMed, Web of Science, Ovid and Embase databases on May 15, 2014 and performed a meta-analysis. In this meta-analysis, a total of 17 articles were included. Of them, there were 15 studies with 5873 cases and 5771 controls for rs1805388 and 6 studies with 4161 cases and 4881 controls for rs1805386. Overall, our results suggested that there was no obvious relevance of LIG4 T9I polymorphism with cancer susceptibility. However, in subgroup analysis, we found the LIG4 T9I was associated with a slightly decreased cancer risk among Caucasians. As to the rs1805386, the genetic variant had no significant association with cancer risk. In conclusion, despite several limitations, this meta-analysis suggested that LIG4 T9I genetic variant is associated with a decreased risk of cancer among Caucasians, however, the rs1805386 gene polymorphism is not a risk factor of cancer.
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Affiliation(s)
- Shang Xie
- Department of Oral and Maxillofacial Surgery, Peking University School and hospital of Stomatology, Beijing 100081, China
| | - Xiao-Feng Shan
- Department of Oral and Maxillofacial Surgery, Peking University School and hospital of Stomatology, Beijing 100081, China
| | - Kun Shang
- Department of Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Hui Xu
- Department of Oral and Maxillofacial Surgery, Peking University School and hospital of Stomatology, Beijing 100081, China
| | - Jing He
- State Key Laboratory of Oncology in South China, Department of Experimental Research, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, Guangdong, China
| | - Zhi-Gang Cai
- Department of Oral and Maxillofacial Surgery, Peking University School and hospital of Stomatology, Beijing 100081, China
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Association of DCC, MLH1, GSTT1, GSTM1, and TP53 gene polymorphisms with colorectal cancer in Kazakhstan. Tumour Biol 2014; 36:279-89. [PMID: 25249451 DOI: 10.1007/s13277-014-2641-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 09/15/2014] [Indexed: 12/16/2022] Open
Abstract
This study presents the first results of a molecular-genetic study of colorectal cancer (CRC) in Kazakhstan. Blood samples were collected from patients diagnosed with rectal or colon cancer (249 individuals) as well as a control cohort of healthy volunteers (245 individuals), taking into account the age, gender, ethnicity, and smoking habits of the CRC patients. Combined analysis of data obtained from individuals of either Kazakh or Russian decent showed a significant association with increased CRC risk in the following genotypes: DCC (32008376G/G and G/A versus A/A; OR = 3.45, 95 % confidence interval (95 %CI) = 1.75-6.81, χ (2) = 14.07, p < 0.0002), MLH1 (-93G/G versus G/A and A/A; OR = 1.45, 95 %CI = 1.02-2.07, χ (2) = 4.21, p < 0.04), TP53 (Pro72Pro; OR = 3.80, 95 %CI = 2.46-5.88, χ (2) = 61.27, p < 0.0001), combination GSTT1 deletions with heterozygotes versus normal homozygotes (OR = 1.43, 95 %CI = 1.00-2.04, χ (2) = 3.90, p < 0.05), and GSTM1 deletions (OR = 1.83, 95 %CI = 1.28-2.63, χ (2) = 11.04, p < .001). Analysis for ethnicity and smoking for each of the investigated polymorphisms showed that some genotypes can have a predictive value for susceptibility to CRC, at least those that demonstrate statistically significant ORs either for the combined mixed population of Kazakhstan or for both main ethnic groups separately (Kazakhs and Russians): TP53 Pro72Pro homozygous (for Kazakh-OR = 3.40, 95 %CI = 1.63-7.06, χ (2) = 11.35, p < 0.003; for Russian-OR = 4.69, 95 %CI = 2.53-8.66, χ (2) = 53.19, p < 0.0001) and GSTM1 deletions (for Kazakh-OR = 2.30, 95 %CI = 1.21-4.40, χ (2) = 8.42, p < 0.01; for Russian-OR = 1.64, 95 %CI = 1.01-2.66, χ (2) = 7.82, p < 0.02).
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A polymorphism rs12325489C>T in the lincRNA-ENST00000515084 exon was found to modulate breast cancer risk via GWAS-based association analyses. PLoS One 2014; 9:e98251. [PMID: 24879036 PMCID: PMC4039483 DOI: 10.1371/journal.pone.0098251] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 04/30/2014] [Indexed: 12/21/2022] Open
Abstract
Breast cancer, one of the most common malignancies diagnosed among women worldwide, is a complex polygenic disease in the etiology of which genetic factors play an important role. Thus far, a subset of breast cancer genetic susceptibility loci has been addressed among Asian woman through genome-wide association studies (GWASs). In this study, we identified numerous long, intergenic, noncoding RNAs (lincRNAs) enriched in these breast cancer risk-related loci and identified 16 single nucleotide polymorphisms (SNPs) located within the sequences of lincRNA exonic regions. We examined whether these 16 SNPs are associated with breast cancer risk in 2539 cancer patients and 2818 control subjects from eastern, southern, and northern Chinese populations. We found that the C allele of the rs12325489C>T polymorphism in the exonic regions of lincRNA-ENST00000515084 was associated with a significantly increased risk of breast cancer (adjusted odds ratio [OR] = 1.79; 95% confidence interval [CI] = 1.50-2.12), compared with the rs12325489TT genotype. Biochemical analysis demonstrated that the C to T base change at rs12325489C>T disrupts the binding site for miRNA-370, thereby influencing the transcriptional activity of lincRNA-ENST00000515084 in vitro and in vivo, and affecting cell proliferation and tumor growth. Our findings indicate that the rs12325489C>T polymorphism in the lincRNA-ENST00000515084 exon may be a genetic modifier in the development of breast cancer.
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Zhao M, Chen P, Dong Y, Zhu X, Zhang X. Relationship between Rad51 G135C and G172T variants and the susceptibility to cancer: a meta-analysis involving 54 case-control studies. PLoS One 2014; 9:e87259. [PMID: 24475258 PMCID: PMC3903631 DOI: 10.1371/journal.pone.0087259] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 12/24/2013] [Indexed: 12/21/2022] Open
Abstract
Background The associations between Rad51 gene polymorphisms (G135C and G172T) and risk of cancer have been investigated, but the results were inconclusive. To get a comprehensive evaluation of the association above, we performed a meta-analysis of published studies. Methods A computerized search of PubMed, Embase and Web of Knowledge databases for all relevant studies was performed and the data were analyzed in a meta-analysis. The overall odds ratio (OR) with the 95% confidence interval (95% CI) was calculated to assess the strength of the association between Rad51 polymorphisms and cancer risk. Data were analyzed using fixed- or random-effects model when appropriate. Sensitivity analysis and publication bias test were also estimated. Results Overall, a total of 54 case-control studies were included in the current meta-analysis, among which 42 studies with 19,142 cases and 20,363 controls for RAD51 G135C polymorphism and 12 studies with 6,646 cases and 6,783 controls for G172T polymorphism. For G135C polymorphism, the pooled results indicated that significantly increased risk was found in overall cancers (homozygote model: OR = 1.776, 95% CI = 1.288–2.449; allelic genetic model: OR = 1.169, 95% CI = 1.016–1.345; recessive model: OR = 1.946, 95% CI = 1.336–2.835), especially in breast cancer (homozygote model: OR = 1.498, 95% CI = 1.026–2.189; recessive model: OR = 1.732, 95% CI = 1.170–2.562). For G172T polymorphism, a decreased cancer risk was observed in head and neck cancer (homozygote model: OR = 0.621, 95% CI = 0.460–0.837; allelic genetic model: OR = 0.824, 95% CI = 0.716–0.948; recessive model: OR = 0.639, 95% CI = 0.488–0.837). Conclusions Our results suggested that the Rad51 G135C polymorphism is a candidate for susceptibility to overall cancers, especially to breast cancer, and that the Rad51 G172T might play a protective role in the development of head and neck cancer.
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Affiliation(s)
- Mengmeng Zhao
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Pin Chen
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yanbin Dong
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xianji Zhu
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xilong Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- * E-mail:
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Rodriguez-Hernandez I, Perdomo S, Santos-Briz A, Garcia JL, Gomez-Moreta JA, Cruz JJ, Gonzalez-Sarmiento R. Analysis of DNA repair gene polymorphisms in glioblastoma. Gene 2013; 536:79-83. [PMID: 24325908 DOI: 10.1016/j.gene.2013.11.077] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 11/29/2013] [Indexed: 11/15/2022]
Abstract
BACKGROUND Glioblastoma is the most common and aggressive primary brain tumor in adults. Despite several factors such as ionizing radiation exposure or rare genetic syndromes have been associated with the development of glioblastoma, no underlying cause has been identified for the majority of cases. We thus aimed to investigate the role of DNA repair polymorphisms in modulating glioblastoma risk. METHODS Genotypic and allelic frequencies of seven common polymorphisms in DNA repair genes involved in nucleotide excision repair (ERCC1 rs11615, ERCC2 rs13181, ERCC6 rs4253079), base excision repair (APEX1 rs1130409, XRCC1 rs25487), double-strand break repair (XRCC3 rs861539) and mismatch repair (MLH1 rs1800734) pathways were analyzed in 115 glioblastoma patients and 200 healthy controls. Haplotype analysis was also performed for ERCC1 rs11615 and ERCC2 rs13181 polymorphisms, located on the same chromosomal region (19q13.32). RESULTS Our results indicated that carriers of the ERCC2 Gln/Gln genotype were associated with a lower glioblastoma risk (OR=0.32, 95% CI 0.12-0.89; P=0.028), whereas carriers of the MLH1 AA genotype were associated with an increased risk of glioblastoma (OR=3.14, 95% CI 1.09-9.06; P=0.034). Furthermore, the haplotype containing the C allele of ERCC2 rs13181 polymorphism and the T allele of ERCC1 rs11615 polymorphism was significantly associated with a protective effect of developing glioblastoma (OR=0.34, 95% CI 0.16-0.71; P=0.004). CONCLUSIONS These results pointed out that MLH1 rs1800734 and ERCC2 rs13181 polymorphisms might constitute glioblastoma susceptibility factors, and also suggested that the chromosomal region 19q could be important in glioblastoma pathogenesis.
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Affiliation(s)
- Irene Rodriguez-Hernandez
- Molecular Medicine Unit, Department of Medicine, University of Salamanca, Salamanca, Spain; IBMCC and IBSAL (USAL/CSIC/University Hospital), Salamanca, Spain
| | | | - Angel Santos-Briz
- IBMCC and IBSAL (USAL/CSIC/University Hospital), Salamanca, Spain; Department of Pathology, University Hospital of Salamanca, Salamanca, Spain
| | - Juan Luis Garcia
- IBMCC and IBSAL (USAL/CSIC/University Hospital), Salamanca, Spain; Institute for Health Science Studies of Castilla y Leon, Salamanca, Spain
| | | | - Juan Jesus Cruz
- IBMCC and IBSAL (USAL/CSIC/University Hospital), Salamanca, Spain; Department of Oncology, University Hospital of Salamanca, Salamanca, Spain
| | - Rogelio Gonzalez-Sarmiento
- Molecular Medicine Unit, Department of Medicine, University of Salamanca, Salamanca, Spain; IBMCC and IBSAL (USAL/CSIC/University Hospital), Salamanca, Spain.
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Synowiec E, Wojcik KA, Izdebska J, Binczyk E, Blasiak J, Szaflik J, Szaflik JP. Polymorphisms of the homologous recombination gene RAD51 in keratoconus and Fuchs endothelial corneal dystrophy. DISEASE MARKERS 2013; 35:353-62. [PMID: 24223453 PMCID: PMC3809973 DOI: 10.1155/2013/851817] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 08/28/2013] [Indexed: 01/20/2023]
Abstract
PURPOSE We investigated the association between genotypes and haplotypes of the c.-61G>T (rs 1801320) and c.-98G>C (rs 1801321) polymorphisms of the RAD51 gene and the occurrence of keratoconus (KC) and Fuchs endothelial corneal dystrophy (FECD) in dependence on some environmental factors. METHODS The polymorphisms were genotyped in peripheral blood lymphocytes of 100 KC and 100 FECD patients as well as 150 controls with PCR-RFLP. RESULTS The G/T genotype of the c.-61G>T polymorphism was associated with significantly increased frequency occurrence of KC (crude OR 2.99, 95% CI 1.75-5.13). On the other hand, the G/G genotype of this polymorphism was positively correlated with a decreased occurrence of this disease (crude OR 0.52, 95% CI 0.31-0.88). We did not find any correlation between genotypes/alleles of the c.-98G>C polymorphism and the occurrence of KC. We also found that the G/G genotype and G allele of the c.-98G>C polymorphism had a protective effect against FECD (crude OR 0.51, 95% CI 0.28-0.92; crude OR 0.53, 95% CI 0.30-0.92, resp.), while the G/C genotype and the C allele increased FECD occurrence (crude OR 1.85, 95% CI 1.01-3.36; crude OR 1.90, 95% CI 1.09-3.29, resp.). CONCLUSIONS The c.-61T/T and c.-98G>C polymorphisms of the RAD51 gene may have a role in the KC and FECD pathogenesis and can be considered as markers in these diseases.
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Affiliation(s)
- Ewelina Synowiec
- Department of Molecular Genetics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Katarzyna A. Wojcik
- Department of Molecular Genetics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Justyna Izdebska
- Department of Ophthalmology, Medical University of Warsaw and Samodzielny Publiczny Kliniczny Szpital Okulistyczny, Sierakowskiego 13, 03-710 Warsaw, Poland
| | - Ewelina Binczyk
- Department of Ophthalmology, Medical University of Warsaw and Samodzielny Publiczny Kliniczny Szpital Okulistyczny, Sierakowskiego 13, 03-710 Warsaw, Poland
| | - Janusz Blasiak
- Department of Molecular Genetics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Jerzy Szaflik
- Department of Ophthalmology, Medical University of Warsaw and Samodzielny Publiczny Kliniczny Szpital Okulistyczny, Sierakowskiego 13, 03-710 Warsaw, Poland
| | - Jacek P. Szaflik
- Department of Ophthalmology, Medical University of Warsaw and Samodzielny Publiczny Kliniczny Szpital Okulistyczny, Sierakowskiego 13, 03-710 Warsaw, Poland
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Wu HC, Delgado-Cruzata L, Machella N, Wang Q, Santella RM, Terry MB. DNA double-strand break repair genotype and phenotype and breast cancer risk within sisters from the New York site of the Breast Cancer Family Registry (BCFR). Cancer Causes Control 2013; 24:2157-68. [PMID: 24062231 DOI: 10.1007/s10552-013-0292-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 09/13/2013] [Indexed: 12/11/2022]
Abstract
PURPOSE We previously observed that poor DNA repair phenotype is associated with increased breast cancer (BC) risk within families. Here, we examined whether genetic variation in double-strand break repair (DSBR) genes is associated with BC risk and if genotypes are related to phenotype in unaffected women. METHODS Using data from the New York site of the Breast Cancer Family Registry, we investigated 25 single-nucleotide polymorphism (SNPs) involved in DSBR using biospecimens from 337 BC cases and 410 unaffected sister controls. RESULTS Genotypes in XRCC4 were associated with BC risk, with ORs of 1.67 (95 % CI 1.01-2.76) for the combined GA/AA of rs1805377 and 1.69 (95 % CI 1.03-2.77) for rs1056503 TG/GG; these associations were no longer statistically significant in multivariable conditional logistic regression models. When examining the association of SNPs with phenotype, we found that genotypes of XRCC5 rs3834 and rs1051685, which were highly correlated with each other, were associated with end-joining (EJ) capacity; women with the XRCC5 rs3834 GA genotype had better DNA repair as measured by higher levels of EJ capacity (37.8 ± 14.1 % for GA vs. 27.9 ± 11.8 % for GG carriers p = 0.0006). Women with the AA genotype of BRCA1 rs799917 also had higher EJ capacity (35.1 ± 9.2 %) than those with GG (26.4 ± 10.1 %, p = 0.02). CONCLUSIONS Overall, we found that selected DSBR genotypes were associated with phenotype, although they were not associated with BC risk itself, suggesting that phenotypic measures are influenced by endogenous and exogenous factors across the life course and may be better markers than genotypic measures for ascertaining BC risk.
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Affiliation(s)
- Hui-Chen Wu
- Department of Epidemiology, Mailman School of Public Health of Columbia University, 722 West 168th St., 724A, New York, NY, 10032, USA
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Rodríguez-Hernández I, Garcia JL, Santos-Briz A, Hernández-Laín A, González-Valero JM, Gómez-Moreta JA, Toldos-González O, Cruz JJ, Martin-Vallejo J, González-Sarmiento R. Integrated analysis of mismatch repair system in malignant astrocytomas. PLoS One 2013; 8:e76401. [PMID: 24073290 PMCID: PMC3779191 DOI: 10.1371/journal.pone.0076401] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Accepted: 08/30/2013] [Indexed: 11/22/2022] Open
Abstract
Malignant astrocytomas are the most aggressive primary brain tumors with a poor prognosis despite optimal treatment. Dysfunction of mismatch repair (MMR) system accelerates the accumulation of mutations throughout the genome causing uncontrolled cell growth. The aim of this study was to characterize the MMR system defects that could be involved in malignant astrocytoma pathogenesis. We analyzed protein expression and promoter methylation of MLH1, MSH2 and MSH6 as well as microsatellite instability (MSI) and MMR gene mutations in a set of 96 low- and high-grade astrocytomas. Forty-one astrocytomas failed to express at least one MMR protein. Loss of MSH2 expression was more frequent in low-grade astrocytomas. Loss of MLH1 expression was associated with MLH1 promoter hypermethylation and MLH1-93G>A promoter polymorphism. However, MSI was not related with MMR protein expression and only 5% of tumors were MSI-High. Furthermore, the incidence of tumors carrying germline mutations in MMR genes was low and only one glioblastoma was associated with Lynch syndrome. Interestingly, survival analysis identified that tumors lacking MSH6 expression presented longer overall survival in high-grade astrocytoma patients treated only with radiotherapy while MSH6 expression did not modify the prognosis of those patients treated with both radiotherapy and chemotherapy. Our findings suggest that MMR system alterations are a frequent event in malignant astrocytomas and might help to define a subgroup of patients with different outcome.
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Affiliation(s)
- Irene Rodríguez-Hernández
- Molecular Medicine Unit, Department of Medicine, University of Salamanca, Salamanca, Spain
- IBMCC and IBSAL, (USAL/CSIC/University Hospital), Salamanca, Spain
| | - Juan Luis Garcia
- IBMCC and IBSAL, (USAL/CSIC/University Hospital), Salamanca, Spain
- Institute for Health Science Studies of Castilla y León, Salamanca, Spain
| | - Angel Santos-Briz
- IBMCC and IBSAL, (USAL/CSIC/University Hospital), Salamanca, Spain
- Department of Pathology, University Hospital of Salamanca, Salamanca, Spain
| | | | - Jose María González-Valero
- IBMCC and IBSAL, (USAL/CSIC/University Hospital), Salamanca, Spain
- Institute for Health Science Studies of Castilla y León, Salamanca, Spain
| | | | | | - Juan Jesús Cruz
- IBMCC and IBSAL, (USAL/CSIC/University Hospital), Salamanca, Spain
- Department of Oncology, University Hospital of Salamanca, Salamanca, Spain
| | | | - Rogelio González-Sarmiento
- Molecular Medicine Unit, Department of Medicine, University of Salamanca, Salamanca, Spain
- IBMCC and IBSAL, (USAL/CSIC/University Hospital), Salamanca, Spain
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Wang W, Li JL, He XF, Li AP, Cai YL, Xu N, Sun SM, Wu BY. Association between the RAD51 135 G>C polymorphism and risk of cancer: a meta-analysis of 19,068 cases and 22,630 controls. PLoS One 2013; 8:e75153. [PMID: 24040396 PMCID: PMC3767694 DOI: 10.1371/journal.pone.0075153] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Accepted: 08/12/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND RAD51 135G>C can modify promoter activity and the penetrance of BRCA1/2 mutations, which plays vital roles in the etiology of various cancer. To date, previous published data on the association between RAD51 135G>C polymorphism and cancer risk remained controversial. Recent meta-analysis only analyzed RAD51 135G>C polymorphism with breast cancer risk, but the results were also inconsistent. METHODS A meta-analysis based on 39 case-control studies was performed to investigate the association between cancer susceptibility and RAD51 135G>C. Odds ratios (OR) with 95% confidence intervals (CIs) were used to assess the association in different inheritance models. Heterogeneity among studies was tested and sensitivity analysis was applied. RESULTS Overall, no significant association was found between RAD51 135G>C polymorphism and cancer susceptibility in any genetic model. In further stratified analysis, significantly elevated breast cancer risk was observed in BRCA2 mutation carriers (recessive model: OR = 4.88, 95% CI = 1.10-21.67; additive model: OR = 4.92, 95% CI = 1.11-21.83). CONCLUSIONS This meta-analysis suggests that RAD51 variant 135C homozygote is associated with elevated breast cancer risk among BRCA2 mutation carriers. Moreover, our work also points out the importance of new studies for RAD51 135G>C association in acute myeloid leukemia, especially in Caucasians, where at least some of the covariates responsible for heterogeneity could be controlled, to obtain a more conclusive understanding about the function of the RAD51 135G>C polymorphism in cancer development.
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Affiliation(s)
- Wei Wang
- Shanxi Zhendong Pharmaceutical Co. Ltd., Changzhi, Shanxi Province, China
- Research Center of Clinical Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jia-Lin Li
- Department of Radiology, Putuo District Central Hospital, Shanghai, PR China
| | - Xiao-Feng He
- Information Section, Peace Hospital of Changzhi Medical College, Changzhi, Shanxi Province, China
| | - An-Ping Li
- Shanxi Zhendong Pharmaceutical Co. Ltd., Changzhi, Shanxi Province, China
| | - Yong-Lin Cai
- Central Laboratory, Wuzhou Red Cross Hospital, Wuzhou, Guangxi Province, China
| | - Na Xu
- Department of Hematology, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Shu-Mei Sun
- Department of Infection Management, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Bing-Yi Wu
- Research Center of Clinical Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
- * E-mail:
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Yang Z, Fang X, Pei X, Li H. Polymorphisms in the ERCC1 and XPF genes and risk of breast cancer in a Chinese population. Genet Test Mol Biomarkers 2013; 17:700-6. [PMID: 23909490 PMCID: PMC3761393 DOI: 10.1089/gtmb.2013.0122] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Inherited functional single-nucleotide polymorphisms (SNPs) in DNA repair genes may influence the capability of DNA repair and contribute to the risk of breast cancer. We therefore performed a case-control study to investigate the association of three in excision repair cross-complimentary group 1 (ERCC1) and three in xeroderma pigmentosum complementation group F (XPF) with the risk of breast cancer. Genotyping of ERCC1 (rs2298881, rs3212986, and rs11615) and XPF (rs2276465, rs6498486, and rs2276466) was performed in a 384-well plate format on the MassARRAY(®) platform. Odds ratios and their corresponding 95% confidence intervals were used to assess the effect of each SNP on breast cancer risk. The ERCC1 rs11615 variant A/A genotype was associated with increased breast cancer risk in codominant, dominant, and recessive models, and XPF rs6498486 variant C/C genotype carriers have a significantly increased breast cancer risk in codominant, dominant, and recessive models. Individuals with both the ERCC1 rs11615 A allele and XPF rs6498486 C allele had a heavy increased risk of breast cancer compared to double wild-type homozygotes. The present study shows that the ERCC1 rs11615 and XPF rs6498486 polymorphisms are associated with breast cancer risk in a Chinese population. Further large-scale studies are required to elucidate whether these ERCC1 and XPF SNPs interact with environmental factors in the development of breast cancer.
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Affiliation(s)
- Zecheng Yang
- Department of Breast, the Second Hospital of Jilin University, Changchun, China
| | - Xuedong Fang
- Department of General Surgery, the Second Hospital of Jilin University, Changchun, China
| | - Xinhong Pei
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Huixiang Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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McCullough LE, Santella RM, Cleveland RJ, Millikan RC, Olshan AF, North KE, Bradshaw PT, Eng SM, Terry MB, Shen J, Crew KD, Rossner P, Teitelbaum SL, Neugut AI, Gammon MD. Polymorphisms in DNA repair genes, recreational physical activity and breast cancer risk. Int J Cancer 2013; 134:654-63. [PMID: 23852586 DOI: 10.1002/ijc.28383] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 06/19/2013] [Indexed: 12/29/2022]
Abstract
The mechanisms driving the inverse association between recreational physical activity (RPA) and breast cancer risk are complex. While exercise is associated with increased reactive oxygen species production it may also improve damage repair systems, particularly those that operate on single-strand breaks including base excision repair (BER), nucleotide excision repair (NER) and mismatch repair (MMR). Of these repair pathways, the role of MMR in breast carcinogenesis is least investigated. Polymorphisms in MMR or other DNA repair gene variants may modify the association between RPA and breast cancer incidence. We investigated the individual and joint effects of variants in three MMR pathway genes (MSH3, MLH1 and MSH2) on breast cancer occurrence using resources from the Long Island Breast Cancer Study Project. We additionally characterized interactions between RPA and genetic polymorphisms in MMR, BER and NER pathways. We found statistically significant multiplicative interactions (p < 0.05) between MSH2 and MLH1, as well as between postmenopausal RPA and four variants in DNA repair (XPC-Ala499Val, XPF-Arg415Gln, XPG-Asp1104His and MLH1-lle219Val). Significant risk reductions were observed among highly active women with the common genotype for XPC (OR = 0.54; 95% CI, 0.36-0.81) and XPF (OR = 0.62; 95% CI, 0.44-0.87), as well as among active women who carried at least one variant allele in XPG (OR = 0.46; 95% CI, 0.29-0.77) and MLH1 (OR = 0.46; 95% CI, 0.30-0.71). Our data show that women with minor alleles in both MSH2 and MLH1 could be at increased breast cancer risk. RPA may be modified by genes in the DNA repair pathway, and merit further investigation.
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Affiliation(s)
- Lauren E McCullough
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
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Jha R, Gaur P, Sharma SC, Das SN. Single nucleotide polymorphism in hMLH1 promoter and risk of tobacco-related oral carcinoma in high-risk Asian Indians. Gene 2013; 526:223-7. [PMID: 23727610 DOI: 10.1016/j.gene.2013.05.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 04/05/2013] [Accepted: 05/06/2013] [Indexed: 11/30/2022]
Abstract
hMLH1 is a member of mismatch repair genes (MMR) that plays a crucial role in correcting replication errors, cell cycle arrest, apoptosis and oxidative stress. We explored the risk associated with hMLH1 -93 A>G (rs 1800734) single nucleotide polymorphism (SNP) with the oral squamous cell carcinoma (OSCC) in Asian Indians. We genotyped 242 patients with tobacco-related OSCC and 205 healthy controls by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique. The frequency of AA genotype was found to be significantly (Pc<0.0006) lower in patients as compared to the controls (21.49% vs. 47.8%) while GG genotype showed significantly higher (Pc<0.0006) prevalence in patients as compared to the healthy controls (41.32% vs. 13.66%). In logistic regression analysis AG (adjusted OR=1.95, 95% CI=0.72-5.26) and GG genotype (adjusted OR=4.5, 95% CI=1.54-13.16, P=0.006) appeared susceptible when compared with the wild-type AA genotype. The allelic distribution showed that variant G allele is significantly higher (Pc<0.0004) in patients and associated with increased risk (adjusted OR=2.36, 95% CI=1.33-4.19, P=0.003) as compared to the wild-type A allele. Altogether, our results suggest that the hMLH1 -93 A>G polymorphism is associated with the higher risk of tobacco-related OSCC in Asian Indians and could be useful in screening population at a higher risk.
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Affiliation(s)
- Ritu Jha
- Department of Biotechnology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India.
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Hormone Receptor Expression in Invasive Breast Cancer Among Korean Women and Comparison of 3 Antiestrogen Receptor Antibodies. Am J Surg Pathol 2012; 36:1817-25. [DOI: 10.1097/pas.0b013e318267b012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Xu JL, Yin ZQ, Huang MD, Wang XF, Gao W, Liu LX, Wang RS, Huang PW, Yin YM, Liu P, Shu YQ. MLH1 polymorphisms and cancer risk: a meta-analysis based on 33 case-control studies. Asian Pac J Cancer Prev 2012; 13:901-7. [PMID: 22631669 DOI: 10.7314/apjcp.2012.13.3.901] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE Cumulative evidence suggests that MLH1, the key component in the mismatch pathway, plays an important role in human cancers. Two potential functional polymorphisms (-93G>A and I219V) of MLH1 have been implicated in cancer risk. The aim of this meta-analysis was to summarize the evidence for associations. METHODS Eligible studies were identified by searching the electronic literature PubMed, ScienceDirect and Embase databases for relevant reports and bibliographies. Studies were included if of case-control design investigating MLH1 polymorphisms (-93G>A and I219V) and cancer risk with sufficient raw data for analysis. Odds ratios (OR) and 95% confidence intervals (95% CI) were used to evaluate the strength of associations. RESULTS Our meta-analysis from 33 published case-control studies showed the variant A allele of -93G>A polymorphism to be associated with increased risk in all genetic models (AA vs. GG: OR = 1.22, 95% CI: 1.03-1.44), especially among non-Asians (AA vs. GG: OR = 1.28, 95% CI: 1.04-1.58). For the I219V polymorphism, however, there was no main effect associated with overall cancer risk in any genetic model. CONCLUSIONS The meta-analysis suggested that the MLH1 -93G>A polymorphism may be a biomarker of cancer susceptibility. Large sample association studies and assessment of gene-to-gene as well as gene-to-environment interactions are required to confirm these findings.
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Affiliation(s)
- Jia-Li Xu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Jiang Y, Qin Z, Hu Z, Guan X, Wang Y, He Y, Xue J, Liu X, Chen J, Dai J, Jin G, Ma H, Wang S, Shen H. Genetic variation in a hsa-let-7 binding site in RAD52 is associated with breast cancer susceptibility. Carcinogenesis 2012. [PMID: 23188672 DOI: 10.1093/carcin/bgs373] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Genetic variants may influence miRNA-mRNA interaction through modulate binding affinity, creating or destroying miRNA-binding sites. Twenty-four single nucleotide polymorphisms (SNPs) that were predicted to affect the binding affinity of breast cancer-related miRNAs to 3'-untranslated regions (UTR) of known genes were genotyped in 878 breast cancer cases and 900 controls in Chinese women. Three promising SNPs (rs10494836, rs10857748 and rs7963551) were further validated in additional 914 breast cancer cases and 967 controls. The variant allele (C) of rs7963551 at 3'-UTR of RAD52 showed a consistently reduced breast cancer risk in two stages with a combined odds ratio (OR) of 0.84 [95% confidence interval (CI) = 0.75-0.95], which was more prominent among women with early age at first live birth (OR = 0.71, 95% CI = 0.58-0.87). A significant interaction was observed between rs7963551 and age at first live birth on breast cancer risk (P for interaction = 0.04). Luciferase activity assay showed a higher expression level for rs7963551 C allele as compared with A allele (P = 5.19 × 10(-3) for MCF-7 cell lines), which might be due to a reduced inhibition from a weakened binding capacity of miRNA to 3'-UTR of RAD52 harboring C allele. These findings indicate that rs7963551 located at hsa-let-7 binding site may alter expression of RAD52 through modulating miRNA-mRNA interaction and contribute to the development of breast cancer in Chinese women.
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Affiliation(s)
- Yue Jiang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 210029, China
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Panigrahi GB, Slean MM, Simard JP, Pearson CE. Human mismatch repair protein hMutLα is required to repair short slipped-DNAs of trinucleotide repeats. J Biol Chem 2012; 287:41844-50. [PMID: 23086927 DOI: 10.1074/jbc.m112.420398] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Mismatch repair (MMR) is required for proper maintenance of the genome by protecting against mutations. The mismatch repair system has also been implicated as a driver of certain mutations, including disease-associated trinucleotide repeat instability. We recently revealed a requirement of hMutSβ in the repair of short slip-outs containing a single CTG repeat unit (1). The involvement of other MMR proteins in short trinucleotide repeat slip-out repair is unknown. Here we show that hMutLα is required for the highly efficient in vitro repair of single CTG repeat slip-outs, to the same degree as hMutSβ. HEK293T cell extracts, deficient in hMLH1, are unable to process single-repeat slip-outs, but are functional when complemented with hMutLα. The MMR-deficient hMLH1 mutant, T117M, which has a point mutation proximal to the ATP-binding domain, is defective in slip-out repair, further supporting a requirement for hMLH1 in the processing of short slip-outs and possibly the involvement of hMHL1 ATPase activity. Extracts of hPMS2-deficient HEC-1-A cells, which express hMLH1, hMLH3, and hPMS1, are only functional when complemented with hMutLα, indicating that neither hMutLβ nor hMutLγ is sufficient to repair short slip-outs. The resolution of clustered short slip-outs, which are poorly repaired, was partially dependent upon a functional hMutLα. The joint involvement of hMutSβ and hMutLα suggests that repeat instability may be the result of aberrant outcomes of repair attempts.
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Affiliation(s)
- Gagan B Panigrahi
- Department of Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
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Zhou LP, Luan H, Dong XH, Jin GJ, Ma DL, Shang H. Association of Functional Polymorphisms of the XRCC4 Gene with the Risk of Breast Cancer: A Meta-analysis. Asian Pac J Cancer Prev 2012; 13:3431-6. [DOI: 10.7314/apjcp.2012.13.7.3431] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Nogueira A, Catarino R, Faustino I, Nogueira-Silva C, Figueiredo T, Lombo L, Hilário-Silva I, Pereira D, Medeiros R. Role of the RAD51 G172T polymorphism in the clinical outcome of cervical cancer patients under concomitant chemoradiotherapy. Gene 2012; 504:279-83. [PMID: 22634097 DOI: 10.1016/j.gene.2012.05.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 05/17/2012] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Cervical cancer is one of the most common cancers diagnosed in women worldwide. Mammalian cells are constantly exposed to a wide variety of genotoxic agents from both endogenous and exogenous sources. The RAD51 protein is required for meiotic and mitotic recombination and plays a central role in homology-dependent recombinational repair of double-strand breaks (DSBs). Given the functional relevance of the DNA repair system on carcinogenesis, potential associations between genetic polymorphisms of DNA repair genes, cancer risk and response to therapy have been intensively evaluated. This is the first study evaluating the role of the RAD51 G172T genetic variants in cancer prognosis and clinical outcome of cervical cancer patients. MATERIAL AND METHODS We analyzed RAD51 G172T polymorphism genotypes in cervical cancer patients who underwent a platinum-based chemotherapy in combination with radiotherapy. Genotyping was performed by Taqman™ Allelic Discrimination methodology. RESULTS AND DISCUSSION Concerning the overall survival rates found using Kaplan-Meier method and Log Rank Test, we observed that the mean survival rates were statistically different according to the patients RAD51 genotypes. The group of patients carrying the T allele present a higher mean survival rate than the other patients (102.3months vs. 86.4months, P=0.020). Using the Cox regression analysis, we found an increased overall survival time for T-carrier patients, when compared with GG genotype, with tumor stage, age and presence of lymph nodes as covariates [hazard ratio (HR), 0.373; 95% CI, 0.181-0.770; P=0.008]. Among patients (n=193), RAD51 genotype frequency distributions were not under the influence of clinicopathologic characteristics, namely, treatment response (P=0.508), recurrence (P=0.150) and tumor stage (P=0.250). CONCLUSIONS This is the first study evaluating the role of the RAD51 G172T genetic variants in cancer prognosis and clinical outcome of cervical cancer patients. Our results indicate an influence of the RAD51 genetic variants in overall survival of cervical cancer. Thereby, RAD51 G172T genotypes may provide additional prognostic information in cervical cancer patients who underwent cisplatin-based chemotherapy in combination with radiotherapy.
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Affiliation(s)
- Augusto Nogueira
- Molecular Oncology GRP & Virology CI, Portuguese Institute of Oncology, Rua Dr. Ant. Bernardino Almeida, Porto, Portugal
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Romanowicz-Makowska H, Smolarz B, Połać I, Sporny S. Single nucleotide polymorphisms of RAD51 G135C, XRCC2 Arg188His and XRCC3 Thr241Met homologous recombination repair genes and the risk of sporadic endometrial cancer in Polish women. J Obstet Gynaecol Res 2012; 38:918-24. [DOI: 10.1111/j.1447-0756.2011.01811.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Zhang L, Wang J, Xu L, Zhou J, Guan X, Jiang F, Wu Y, Fan W. Nucleotide excision repair gene ERCC1 polymorphisms contribute to cancer susceptibility: a meta-analysis. Mutagenesis 2012; 27:67-76. [PMID: 22002622 DOI: 10.1093/mutage/ger062] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/30/2023] Open
Abstract
Individual studies of the associations between excision repair cross-complimentary group 1 (ERCC1) polymorphisms and cancer susceptibility have shown inconclusive results. To derive a more precise estimation of the relationship between three well-characterised polymorphisms on ERCC1 and the risk of cancer, we performed a meta-analysis based on 48 publications. We used odds ratios (ORs) with 95% confidence intervals (CIs) to assess the strength of the associations. We found that ERCC1 17677A (rs3212961) variant genotypes were associated with significantly increased overall risk of cancer without substantial heterogeneity (AA versus CC, OR = 1.36, 95% CIs: 1.10-1.68; AC versus CC: OR = 1.11, 95% CIs: 0.99-1.26; dominant comparison: AA/AC versus CC: OR = 1.15, 95% CIs: 1.02-1.29; recessive comparison: AA versus AC/CC: OR = 1.25, 95% CIs: 1.05-1.49). The ERCC1 19007 C (rs11615) allele had null effects on overall risk of cancer; but in the stratified analyses, we observed an elevated association in Asian populations with homozygote variants and hospital-based controls. In addition, during further stratified analyses of cancer groups, homozygote variants were found that are associated with lung cancer and smoking-related cancers. Also, the observed ERCC1 19007 C heterozygote variant contributes to the development of skin cancer. However, the ERCC1 8092C > A (rs3212986) polymorphism did not appear to have an effect on cancer risk. Additionally, no evidence of publication bias was observed in these polymorphisms. Our meta-analysis supports the conclusion that the ERCC1 17677A > C and ERCC1 19007T > C polymorphisms, but not the ERCC1 8092C > A polymorphism, are low-penetrance risk factors for cancer development.
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Affiliation(s)
- Louqian Zhang
- Department of Medical Oncology, Affiliated Cancer Hospital of Jiangsu Province, Nanjing Medical University, 140 Hanzhong Road, Nanjing, 210029, China
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Zhi W, Xue B, Wang L, Xiao N, He Q, Wang Y, Fan Y. The MLH1 2101C>A (Q701K) variant increases the risk of gastric cancer in Chinese males. BMC Gastroenterol 2011; 11:133. [PMID: 22136435 PMCID: PMC3275522 DOI: 10.1186/1471-230x-11-133] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Accepted: 12/03/2011] [Indexed: 12/14/2022] Open
Abstract
Background Gastric cancer is one of the most common cancers affecting East Asians, and MLH1 could play a critical role during tumorigenesis in this condition. Methods Samples from 236 Chinese patients suffering from gastric cancer were screened for MLH1 germline mutations. Carrier frequencies of the mutations were compared between gastric cancer patients and 240 cancer-free controls. Bioinformatic analysis was used to predict the effect of these mutations on protein function and mRNA splicing. Results Six MLH1 sequence alterations were identified in gastric cancer patients including two promoter region substitutions, -93G>A and -28A>G, and four missense mutations 649C>T (R217C), 655A>G (I219V), 1151T>A (V384D) and 2101C>A (Q701K). Compared with the MLH1 2101CC genotype, the 2101CA genotype was associated with a risk of gastric cancer (OR = 8.42, 95% CI = 1.04-68.06) in males. Furthermore, the MLH1 2101C>A mutant was predicted by in silico analysis to affect exon splicing ability. Immunohistochemistry of one index patient carrying the MLH1 2101C>A mutation demonstrated a loss of MLH1 protein and normal expression of MSH2 and E-cadherin. No significant differences were demonstrated between cases and controls for the other five MLH1 variants but the data indicated an ethnic difference in the frequency of these variations between Eastern Asians and Western populations. Conclusions An ethnic-specific MLH1 mutation spectrum occurred in Chinese gastric cancer patients. The MLH1 2101C>A mutation could be a marker for susceptibility to gastric cancer, particularly in males.
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Affiliation(s)
- Wenxian Zhi
- Department of Medical Genetics, Medical School, Nanjing University, Nanjing, China
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Han W, Kim KY, Yang SJ, Noh DY, Kang D, Kwack K. SNP-SNP interactions between DNA repair genes were associated with breast cancer risk in a Korean population. Cancer 2011; 118:594-602. [PMID: 21751184 DOI: 10.1002/cncr.26220] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 03/23/2011] [Accepted: 04/01/2011] [Indexed: 01/23/2023]
Abstract
BACKGROUND Single nucleotide polymorphisms (SNPs) in nucleotide excision repair (NER) pathway genes may modulate DNA repair capacity and increase susceptibility to breast cancer (BC). A case-control study was conducted by evaluating genes involved in DNA repair to identify polymorphisms associated with BC. METHODS The 384 SNPs of 38 candidate genes were genotyped using the Illumina GoldenGate method. Genotypes were determined in a case-control study that consisted of 346 BC patients and 361 controls. Odds ratios and 95% confidence intervals were computed using logistic regression models. Multiple logistic regression models adjusted for age, family history of BC, and body mass index were used. RESULTS Gene-gene interaction analysis among the DNA repair pathway genes showed significant effects on BC risk. ERCC2 rs50872 (TC genotype) in combination with XPA rs2808668 (TC genotype) and rs1800975 (AG genotype) was strongly associated with an increased risk of BC (P = .0004 and .0002, P(Bonferroni) = .023 and .014, respectively). Moreover, the T-G (including rs2808668 and rs1800975) haplotype in XPA combined with the ERCC2 T allele in rs50872 carriers was also associated with additive risk effect of BC (odds ratios: 2.58, 2.62, and 3.49, respectively). CONCLUSION Genetic variation in DNA repair genes involved in NER mechanisms increased the risk of BC development. These results suggested that a stronger combined effect of SNPs via gene-gene interaction may help to predict BC risk.
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Affiliation(s)
- Wonshik Han
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
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Pan XM, Yang WZ, Xu GH, Bai P, Qin HJ, Zhang LS, Zhai XD, Tang M, Deng W, Zhang L, Gao LB. The association between MLH1 -93 G>A polymorphism of DNA mismatch repair and cancer susceptibility: a meta-analysis. Mutagenesis 2011; 26:667-73. [PMID: 21745804 DOI: 10.1093/mutage/ger032] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
DNA mismatch repair, known as a fundamentally biological pathway, plays key roles in maintaining genomic stability, eliminating mismatch bases and preventing both mutagenesis in the short term and cancerogenesis in the long term. Polymorphisms of MLH1 in individuals may have an effect on the DNA repair capacity and therefore on cancer risk. Recently, emerging studies have been done to evaluate the association between MLH1 -93 G/A polymorphism and cancer risk in diverse populations. However, the results remain conflicting rather than conclusive. In this meta-analysis, we assessed reported studies of association between the MLH1 -93 G/A polymorphism and cancer risk including 13 691 cancer cases and 14 068 controls from 17 published studies. A borderline significant association between the MLH1 -93 G/A polymorphism and cancer risk was observed in overall analysis [heterozygote: odds ratio (OR) = 1.15; 95% confidence interval (CI) 1.05-1.26; homozygote: OR = 1.21; 95% CI, 1.04-1.40; dominant model: OR = 1.13; 95% CI 1.01-1.26; recessive model: OR = 1.21; 95% CI 1.07-1.35, respectively]. In subgroup analysis by ethnicity, significantly increased risks were found in Asian population and mixed population but not in Caucasian population. After stratified analysis according to the quality of literature, increased cancer risks were observed in the studies of lower quality but not in the studies of higher quality. Similarly, elevated cancer risks were observed in hospital-based studies but not in population-based studies. These findings showed no persuasive evidence that MLH1 -93 G/A polymorphism was associated with an increased risk of cancer. On the conservative standpoint, well-designed population-based studies with larger sample size in different ethnic groups should be performed to further confirm these results.
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Affiliation(s)
- Xin-Min Pan
- Department of Forensic Pathology, College of Forensic Medicine, Henan University of Science and Technology, 31 Anhui Road, Jianxi District, Luoyang, Henan 471003, People's Republic of China
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He XF, Su J, Zhang Y, Ding DP, Wang W, Liu Y. Need for clarification of data in the recent meta-analysis about RAD51 135G>C polymorphism and breast cancer risk. Breast Cancer Res Treat 2011; 129:649-51; author reply 652-3. [PMID: 21537934 DOI: 10.1007/s10549-011-1537-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Accepted: 04/19/2011] [Indexed: 10/18/2022]
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Bau DT, Tsai CW, Wu CN. Role of the XRCC5/XRCC6 dimer in carcinogenesis and pharmacogenomics. Pharmacogenomics 2011; 12:515-34. [PMID: 21521024 DOI: 10.2217/pgs.10.209] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Over the past few decades, the incidence of cancer has rapidly increased all over the world and cancer remains a major threat to public health. It is believed that cancer results from a series of genetic alterations that lead to the progressive disorder of the normal mechanisms controlling cell proliferation, differentiation, death and/or genomic stability. The response of the cell to genetic injury and its ability to maintain genomic stability by means of a variety of DNA repair mechanisms are therefore essential in preventing tumor initiation and progression. From the same viewpoint, the relative role of DNA repair as a biomarker for prognosis, predictor of drug and therapy responses or indeed as a target for novel gene therapy, is very promising. In this article, we have summarized the studies investigating the association between the XRCC5/XRCC6 dimer and the susceptibility to multiple cancers and discuss its role in carcinogenesis and its potential application to anticancer drug discovery.
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Affiliation(s)
| | - Chia-Wen Tsai
- Terry Fox Cancer Research Laboratory, China Medical University Hospital, 2 Yuh-Der Road, Taichung, 404 Taiwan, Republic of China
| | - Cheng-Nan Wu
- Terry Fox Cancer Research Laboratory, China Medical University Hospital, 2 Yuh-Der Road, Taichung, 404 Taiwan, Republic of China
- Department of Medical Laboratory Science & Biotechnology, Central-Taiwan University of Science & Technology, Taichung, Taiwan, Republic of China
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Li R, Yang Y, An Y, Zhou Y, Liu Y, Yu Q, Lu D, Wang H, Jin L, Zhou W, Qian J, Shugart YY. Genetic polymorphisms in DNA double-strand break repair genes XRCC5, XRCC6 and susceptibility to hepatocellular carcinoma. Carcinogenesis 2011; 32:530-6. [PMID: 21304054 DOI: 10.1093/carcin/bgr018] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Environmental risk factors cause DNA damages. Imprecise DNA repair leads to chromosome aberrations, genome destabilization and hepatocarcinogenesis. Ku is a key DNA double-strand break repair protein. We hypothesized that the genetic variants in Ku subunits encoding genes, XRCC5/XRCC6, may contribute to hepatocellular carcinoma (HCC) susceptibility. We genotyped 13 common single nucleotide polymorphisms (SNPs) in XRCC5 and XRCC6 and evaluated their associations with HCC risk in 689 pathologically confirmed cases and 690 cancer-free controls from a Chinese population. We found that a significantly reduced risk for HCC was associated with XRCC5 rs16855458 [odds ratio (OR)=0.59; 95% confidence interval (CI)=0.43-0.81; CA+AA versus CC] and a significantly increased risk for HCC was associated with XRCC5 rs9288516 (OR=2.02; 95% CI=1.42-2.86; TA+AA versus TT) even after Bonferroni correction (Pcorrected=0.026 and 0.002, respectively). The effects of rs16855458 (OR=0.57; 95% CI=0.37-0.86, P=0.008) and rs9288516 (OR=1.86; 95% CI=1.19-2.90, P=0.007) were more significant in hepatitis B surface antigen-infected subjects than non-infected subjects. The haplotype-based analysis revealed that in XRCC5, AA in block 1 (OR=0.63; 95% CI=0.48-0.83) and CGGTT in block 2 (OR=0.52; 95% CI=0.39-0.69) were associated with decreased HCC risk (Pcorrected=0.013 and <0.001, respectively). The aforementioned two SNPs exhibited a significant cumulative risk effect (Ptrend<0.001). Additionally, potential interaction among XRCC5 rs9288516 and rs2267437, rs5751131 in XRCC6 was indicated by the multifactor dimensionality reduction analysis. In conclusion, XRCC5 variants may play a role in determining individual's HCC susceptibility, which warranted validation in larger studies.
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Affiliation(s)
- Rui Li
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, 220 Handan Road, Shanghai 200433 China
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Lee KM, Han S, Park WY, Kang D. Identification and application of biomarkers in molecular and genomic epidemiologic research. J Prev Med Public Health 2011; 42:349-55. [PMID: 20009480 DOI: 10.3961/jpmph.2009.42.6.349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Biomarkers are characteristic biological properties that can be detected and measured in a variety of biological matrices in the human body, including the blood and tissue, to give an indication of whether there is a threat of disease, if a disease already exists, or how such a disease may develop in an individual case. Along the continuum from exposure to clinical disease and progression, exposure, internal dose, biologically effective dose, early biological effect, altered structure and/or function, clinical disease, and disease progression can potentially be observed and quantified using biomarkers. While the traditional discovery of biomarkers has been a slow process, the advent of molecular and genomic medicine has resulted in explosive growth in the discovery of new biomarkers. In this review, issues in evaluating biomarkers will be discussed and the biomarkers of environmental exposure, early biologic effect, and susceptibility identified and validated in epidemiological studies will be summarized. The spectrum of genomic approaches currently used to identify and apply biomarkers and strategies to validate genomic biomarkers will also be discussed.
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Affiliation(s)
- Kyoung-Mu Lee
- Clinical Research Institute, Seoul National University Hospital, Seoul, Korea
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