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Nguyen Thanh T, Nguyen Tran BS, Hoang Thi AP, Tran Binh T, Ba Nguyen T, Le Minh T, Nguyen Vu QH, Dang Cong T. HER2Ile655Val Single Nucleotide Polymorphism Associated with Early-Onset Breast Cancer Susceptibility: A Systematic Review and Meta-Analysis. Asian Pac J Cancer Prev 2021; 22:11-18. [PMID: 33507673 PMCID: PMC8184204 DOI: 10.31557/apjcp.2021.22.1.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Indexed: 01/21/2023] Open
Abstract
Background: Human epidermal growth factor receptor 2 (HER2) plays an important role in the development and progression of breast cancer. To understand the precise association, this meta-analysis was conducted to estimate the association between HER2Ile655Val single nucleotide polymorphism (SNP) and susceptibility to early-onset breast cancer. Methods: A comprehensive database retrieval from PubMed, Embase, Web of Science and Google Scholar was pooled to investigate links between the HER2Ile655Val SNP and risk of breast cancer. Adjusted odds ratios (ORs) with 95% confidence intervals (CIs) were estimated to appraise the association under the additive model (Ile vs. Val), dominant model (Val/Val + Ile/Val vs. Ile/Ile), and recessive model (Val/Val vs. Ile/Val + Ile/Ile). Results: Seventeen relevant studies with 11,749 cases and 8,105 controls were finally included. We found that HER2Ile655Val SNP is associated with an increased risk of breast cancer in an additive and dominant model. In the subgroup analysis with age stratification, a significant association between the HER2 codon 655 SNP and the risk of breast cancer was found in young women in an additive, dominant, and recessive model; conversely, no significant associations were indicated in older women. In the breast cancer subgroup, HER2Ile655Val SNP was significantly associated with younger age women with breast cancer in the dominant model. In contrast, no association between the HER2 codon 655 SNP and age was found in control populations. Conclusion: Our findings suggest that the Val allele in HER2 codon 655 SNP is strongly associated with breast cancer susceptibility in the young female population and is also significantly associated with younger age in women with breast cancer. HER2Ile655Val SNP might be a susceptibility factor that favours early-onset breast cancer.
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Affiliation(s)
- Tung Nguyen Thanh
- Institute of Biomedicine, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam.,Faculty of Basic Science, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Bao Song Nguyen Tran
- Department of Histology, Embryology, Pathology and Forensic, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Ai Phuong Hoang Thi
- Faculty of Basic Science, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Thang Tran Binh
- Faculty of Public Health, Hue University of Medicince and Pharmacy, Hue university, 6 Ngo Quyen Street, Hue, Vietnam
| | - Thong Ba Nguyen
- Department of Medical Bioscience, Soonchunhyang University Hospital Bucheon, Bucheon 14584, Republic of Korea
| | - Tam Le Minh
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Quoc Huy Nguyen Vu
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Thuan Dang Cong
- Department of Histology, Embryology, Pathology and Forensic, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
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Her2 Ile655 Val polymorphism and its association with breast cancer risk: an updated meta-analysis of case-control studies. Sci Rep 2018; 8:7427. [PMID: 29743533 PMCID: PMC5943262 DOI: 10.1038/s41598-018-25769-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/23/2018] [Indexed: 12/14/2022] Open
Abstract
Breast cancer (BC) is one of the most common types of cancer in women worldwide. Several factors including genetic and environmental have been linked with susceptibility to development of BC. Her2 is a transmembrane protein with tyrosine kinase activity, overexpressed in several cancers including BC. Various studies in different populations have shown association of Her2 variants with susceptibility to BC, however these results were inconsistent, inconclusive and controversial. To obtain a common conclusive finding, we performed meta-analysis of 35 case-control studies reported earlier including 19, 220 cases and 22, 306 controls. We observed significant association of Her2Ile655Val polymorphism with susceptibility to development of breast cancer (Overall allele Val vs Ile: OR = 1.130, 95% CI = 1.051–1.216, p = 0.001; Ile-Val vs Ile-Ile: OR = 1.100, 95% CI = 1.016–1.192, p = 0.019; Val-Val+Ile-Val vs Ile-Ile: OR = 1.127, 95% CI = 1.038–1.223, p = 0.004). Subgroup analysis indicated a significant association with susceptibility to breast cancer in African and Asian populations. However, such association was not observed in other ethnic groups. Our findings suggested that Her2Ile655Val polymorphism is associated with breast cancer risk in overall, Asian and African populations, and can be used as diagnostic marker for BC.
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Papadopoulou E, Tripsianis G, Anagnostopoulos K, Tentes I, Kakolyris S, Galazios G, Sivridis E, Simopoulos K, Kortsaris A. Significance of Serum Tumor Necrosis Factor-Alpha and its Combination with Her-2 Codon 655 Polymorphism in the Diagnosis and Prognosis of Breast Cancer. Int J Biol Markers 2018; 25:126-35. [DOI: 10.1177/172460081002500302] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Purpose The present study was conducted to clarify the diagnostic and prognostic significance of TNF-alpha and its combination with HER-2 Ile655Val SNP in breast cancer. Methods In this case-control study, 56 consecutive patients with primary breast cancer were prospectively evaluated. The control group consisted of 45 healthy women. Serum concentrations of TNF-alpha were measured by quantitative sandwich enzyme immunoassay (ELISA). HER-2 SNP was genotyped using the PCR-RFLP method. Results Serum TNF-alpha was significantly increased in patients compared to controls. ROC analysis indicated a cutoff point of 11.00 pg/mL to classify breast cancer patients (sensitivity, 86%; specificity, 71%). Elevated TNF-alpha levels were associated with larger, poorly differentiated, invasive and advanced-stage tumors, and >3 positive lymph nodes. Regarding HER-2 SNP, patients with Ile-Val and Val-Val genotypes had significant TNF-α elevation compared with homozygous Ile-Ile patients. In multivariate analysis, high serum TNF-alpha remained an independent prognostic factor of worse overall survival; its combination with Val-Val genotype predicted a worse prognosis than high TNF-alpha alone. Conclusions Serum TNF-a could be used clinically as a useful tumor marker for diagnosis, disease extent and outcome of breast cancer. The negative impact on survival seems to be enhanced through the interaction with HER-2 Ile655Val SNP.
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Affiliation(s)
- Evropi Papadopoulou
- Laboratory of Biochemistry, Medical School, Democritus University of Thrace, Alexandroupolis - Greece
| | - Gregory Tripsianis
- Department of Medical Statistics, Medical School, Democritus University of Thrace, Alexandroupolis - Greece
| | | | - Ioannis Tentes
- Laboratory of Biochemistry, Medical School, Democritus University of Thrace, Alexandroupolis - Greece
| | - Stylianos Kakolyris
- Department of Medical Oncology, Medical School, Democritus University of Thrace, Alexandroupolis - Greece
| | - Georgios Galazios
- Obstetrics and Gy-necology Clinic, Medical School, Democritus University of Thrace, Alexandroupolis - Greece
| | - Efthimios Sivridis
- Laboratory of Pathology, Medical School, Democritus University of Thrace, Alexandroupolis - Greece
| | - Konstantinos Simopoulos
- Second Division of Surgery Clinic, Medical School, Democritus University of Thrace, Alexandroupolis - Greece
| | - Alexandros Kortsaris
- Laboratory of Biochemistry, Medical School, Democritus University of Thrace, Alexandroupolis - Greece
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Sun Z, Shi Y, Shen Y, Cao L, Zhang W, Guan X. Analysis of different HER-2 mutations in breast cancer progression and drug resistance. J Cell Mol Med 2015; 19:2691-701. [PMID: 26305917 PMCID: PMC4687700 DOI: 10.1111/jcmm.12662] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 07/03/2015] [Indexed: 12/17/2022] Open
Abstract
Studies over the last two decades have identified that amplified human epidermal growth factor receptor (HER‐2; c‐erbB‐2, neu) and its overexpression have been frequently implicated in the carcinogenesis and prognosis in a variety of solid tumours, especially breast cancer. Lots of painstaking efforts were invested on the HER‐2 targeted agents, and significantly improved outcome and prolonged the survival of patients. However, some patients classified as ‘HER‐2‐positive’ would be still resistant to the anti‐HER‐2 therapy. Various mechanisms of drug resistance have been illustrated and the alteration of HER‐2 was considered as a crucial mechanism. However, systematic researches in regard to the HER‐2 mutations and variants are still inadequate. Notably, the alterations of HER‐2 play an important role in drug resistance, but also have a potential association with the cancer risk. In this review, we summarize the possible mutations and focus on HER‐2 variants’ role in breast cancer tumourigenesis. Additionally, the alteration of HER‐2, as a potential mechanism of resistance to trastuzumab, is discussed here. We hope that HER‐2 related activating mutations could potentially offer more therapeutic opportunities to a broader range of patients than previously classified as HER‐2 overexpressed.
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Affiliation(s)
- Zijia Sun
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yaqin Shi
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yan Shen
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Lulu Cao
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wenwen Zhang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiaoxiang Guan
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China.,Department of Medical Oncology, Jinling Hospital, School of Medicine, Southern Medical University, Guangzhou, China
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Stanton SE, Ward MM, Christos P, Sanford R, Lam C, Cobham MV, Donovan D, Scheff RJ, Cigler T, Moore A, Vahdat LT, Lane ME, Chuang E. Pro1170 Ala polymorphism in HER2-neu is associated with risk of trastuzumab cardiotoxicity. BMC Cancer 2015; 15:267. [PMID: 25885598 PMCID: PMC4403678 DOI: 10.1186/s12885-015-1298-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 03/31/2015] [Indexed: 11/17/2022] Open
Abstract
Background Variations in single nucleotide polymorphisms (SNPs) have been associated with enhanced drug efficacy and toxicity in cancer therapy. SNP variations in the ErbB2 gene have been identified that alter the protein sequence of the HER2-neu protein, but how these polymorphisms affect prognosis and response to HER2 targeted therapy is unknown. We examined eleven ErbB2 SNPs that alter the HER2-neu amino acid sequence to determine whether any of these particular polymorphisms were associated with increased trastuzumab cardiotoxicity in a case–control study. Methods 140 subjects were enrolled from a single institution under Weill Cornell Medical College IRB protocol #0804009734. Patients were eligible if they had histologically or cytologically proven HER2-neu positive breast cancer and more than 3 months of trastuzumab therapy. Cases had either symptomatic CHF or a decline in LVEF of 15% (or if the LVEF <55%, a decline in LVEF of 10%) that resulted in at least temporary discontinuation of trastuzumab, whereas controls had no decline in their LVEF. Eleven ErbB2 single gene SNPs that resulted in an alteration in the HER2-neu protein amino acid sequence were studied. Single gene SNP analysis was carried out using SNP genotyping assays from genomic DNA obtained from peripheral blood or buccal swab. Results Only two of the ErbB2 SNPs (Ile 655 Val and Pro 1170 Ala) were found to have variation. There was no association between codon 665 and cardiotoxicity; however the proline variant of amino acid 1170 was more likely than the alanine variant to be found in cases with trastuzumab cardiotoxicity (35% of case patients as compared to 17% of controls, p = 0.04). This association remained significant in multivariable analysis taking into account age, race, and history of hypertension (adjusted OR = 2.60, 95% CI = 1.02, 6.62, p = 0.046). Conclusions The Her2/neu Pro 1170 Ala polymorphism can be used to identify a subset of patients who are at increased risk of cardiotoxicity from trastuzumab therapy. Her2/neu single nucleotide polymorphisms may be useful in conjunction with other biomarkers to risk stratify patients in order to optimize clinical management.
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Affiliation(s)
- Sasha E Stanton
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA. .,Current address: Tumor Vaccine Group, University of Washington, 850 Republican Street Box 358050, Seattle, WA, 98102, USA.
| | - Maureen M Ward
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Paul Christos
- Department of Healthcare Policy and Research, Division of Biostatistics and Epidemiology, Weill Cornell Medical College, New York, NY, 10065, USA.
| | - Rachel Sanford
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Christina Lam
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Marta V Cobham
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Diana Donovan
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Ronald J Scheff
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Tessa Cigler
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Anne Moore
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Linda T Vahdat
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Maureen E Lane
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
| | - Ellen Chuang
- Department of Medicine, Weill Cornell Medical College, 425 E 61st St. 8th floor, New York, NY, 10065, USA.
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Kruszyna Ł, Lianeri M, Roszak A, Jagodziński PP. HER2 codon 655 polymorphism is associated with advanced uterine cervical carcinoma. Clin Biochem 2010; 43:545-8. [DOI: 10.1016/j.clinbiochem.2009.12.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2009] [Revised: 12/09/2009] [Accepted: 12/10/2009] [Indexed: 02/06/2023]
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Jakubowska A, Gronwald J, Menkiszak J, Górski B, Huzarski T, Byrski T, Tołoczko-Grabarek A, Gilbert M, Edler L, Zapatka M, Eils R, Lubiński J, Scott RJ, Hamann U. BRCA1-associated breast and ovarian cancer risks in Poland: no association with commonly studied polymorphisms. Breast Cancer Res Treat 2009; 119:201-11. [PMID: 19360465 DOI: 10.1007/s10549-009-0390-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2009] [Accepted: 03/24/2009] [Indexed: 12/31/2022]
Abstract
Polymorphisms in genes involved in DNA repair, steroid hormone biosynthesis/metabolism/signaling, folate metabolism as well as cell growth are prime candidates for possible associations with breast and ovarian cancer risk in women with an inherited predisposition. We investigated 29 polymorphisms in 20 genes encoding key proteins of the above four biological pathways for their breast and ovarian cancer risk modifying effect in Polish women harboring BRCA1 founder mutations. Of the analyzed genes, ERCC2, XRCC1, XRCC2, XRCC3 and Lig4 participate in DNA repair, TP53 in cell cycle check point control, AIB1, AR, COMT, CYP11A1, CYP17A1, CYP19A1, HSD17 and PGR in steroid hormone biosynthesis/metabolism/signaling, TYMS in folate metabolism and HER2, IL6, LRP1, TGFB and TGFBR1 affect cell growth. Using validated methods, we genotyped 319 breast cancer cases, 146 ovarian cancer cases and 290 unaffected controls, all of whom harbored one of three causative mutations in BRCA1. Our results revealed no association of any of the investigated polymorphisms with BRCA1-associated breast or ovarian cancer risk. Thus, it appears that these polymorphisms do not influence disease risk in Polish women carrying one of the three common BRCA1 founder mutations.
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Mutluhan H, Akbas E, Erdogan NE, Soylemez F, Senli MS, Polat A, Helvacı I, Seyrek E. The Influence of HER2 Genotypes as Molecular Markers on Breast Cancer Outcome. DNA Cell Biol 2008; 27:575-9. [DOI: 10.1089/dna.2007.0702] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hicran Mutluhan
- Department of Medical Biology and Genetics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Etem Akbas
- Department of Medical Biology and Genetics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Nazan Eras Erdogan
- Department of Medical Biology and Genetics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Fatma Soylemez
- Department of Medical Biology and Genetics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Mehmet Sıddık Senli
- Department of Oncology, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Ayse Polat
- Department of Pathology, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Ilter Helvacı
- Department of Statistics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Ertugrul Seyrek
- Department of Oncology, Faculty of Medicine, Mersin University, Mersin, Turkey
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9
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Siddig A, Mohamed AO, Kamal H, Awad S, Hassan AH, Zilahi E, Al-Haj M, Bernsen R, Adem A. HER-2/neu Ile655Val Polymorphism and the Risk of Breast Cancer. Ann N Y Acad Sci 2008; 1138:84-94. [DOI: 10.1196/annals.1414.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Tao W, Wang C, Han R, Jiang H. HER2 codon 655 polymorphism and breast cancer risk: a meta-analysis. Breast Cancer Res Treat 2008; 114:371-6. [DOI: 10.1007/s10549-008-0010-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2008] [Accepted: 04/03/2008] [Indexed: 10/22/2022]
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11
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Human epithelial growth factor receptor 2[Ile655Val] polymorphism and risk of breast fibroadenoma. Eur J Cancer Prev 2008; 17:33-8. [DOI: 10.1097/cej.0b013e3280145e4b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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12
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Lee SC, Hou MF, Hsieh PC, Wu SH, Ann Hou L, Ma H, Tsai SM, Tsai LY. A case–control study of the HER2 Ile655Val polymorphism and risk of breast cancer in Taiwan. Clin Biochem 2008; 41:121-5. [DOI: 10.1016/j.clinbiochem.2007.11.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2007] [Revised: 11/06/2007] [Accepted: 11/12/2007] [Indexed: 01/24/2023]
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13
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Savas S, Schmidt S, Jarjanazi H, Ozcelik H. Functional nsSNPs from carcinogenesis-related genes expressed in breast tissue: potential breast cancer risk alleles and their distribution across human populations. Hum Genomics 2006; 2:287-96. [PMID: 16595073 PMCID: PMC3500178 DOI: 10.1186/1479-7364-2-5-287] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Although highly penetrant alleles of BRCA1 and BRCA2 have been shown to predispose to breast cancer, the majority of breast cancer cases are assumed to result from the presence of low-moderate penetrant alleles and environmental carcinogens. Non-synonymous single nucleotide polymorphisms (nsSNPs) are hypothesised to contribute to disease susceptibility and approximately 30 per cent of them are predicted to have a biological significance. In this study, we have applied a bioinformatics-based strategy to identify breast cancer-related nsSNPs from 981 carcinogenesis-related genes expressed in breast tissue. Our results revealed a total of 367 validated nsSNPs, 109 (29.7 per cent) of which are predicted to affect the protein function (functional nsSNPs), suggesting that these nsSNPs are likely to influence the development and homeostasis of breast tissue and hence contribute to breast cancer susceptibility. Sixty-seven of the functional nsSNPs presented as commonly occurring nsSNPs (minor allele frequencies ≥ 5 per cent), representing excellent candidates for breast cancer susceptibility. Additionally, a non-uniform distribution of the common functional nsSNPs among different human populations was observed: 15 nsSNPs were reported to be present in all populations analysed, whereas another set of 15 nsSNPs was specific to particular population(s). We propose that the nsSNPs analysed in this study constitute a unique resource of potential genetic factors for breast cancer susceptibility. Furthermore, the variations in functional nsSNP allele frequencies across major population backgrounds may point to the potential variability of the molecular basis of breast cancer predisposition and treatment response among different human populations.
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Affiliation(s)
- Sevtap Savas
- Fred A. Litwin Centre for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, ON, M5G 1X5, Canada
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, 600 University Avenue, Toronto, ON, M5G IX5, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 100 College Street, Toronto, ON, M5G IL5, Canada
| | - Steffen Schmidt
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Hamdi Jarjanazi
- Fred A. Litwin Centre for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, ON, M5G 1X5, Canada
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, 600 University Avenue, Toronto, ON, M5G IX5, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 100 College Street, Toronto, ON, M5G IL5, Canada
| | - Hilmi Ozcelik
- Fred A. Litwin Centre for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, ON, M5G 1X5, Canada
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, 600 University Avenue, Toronto, ON, M5G IX5, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 100 College Street, Toronto, ON, M5G IL5, Canada
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14
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Puputti M, Sihto H, Isola J, Butzow R, Joensuu H, Nupponen NN. Allelic imbalance of HER2 variant in sporadic breast and ovarian cancer. ACTA ACUST UNITED AC 2006; 167:32-8. [PMID: 16682283 DOI: 10.1016/j.cancergencyto.2004.09.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2005] [Revised: 09/02/2005] [Accepted: 09/08/2005] [Indexed: 11/18/2022]
Abstract
Both breast and ovarian cancers are associated with HER2 receptor activation, which usually results from receptor overexpression and/or gene amplification. The HER-2 gene harbors a polymorphism at codon 655 (GTC/valine to ATC/isoleucine) in the transmembrane domain region, which has been associated with an elevated risk of breast cancer. The objective of this study was to determine whether the polymorphism is under a selection pressure during breast and ovarian carcinogenesis. The Ile/Val genotype was present in 41% (9/22) of the normal DNA of breast cancer patients. An allelic imbalance in the tumor tissue was found in three breast tumors, with overrepresentation of the Val allele. HER-2 was amplified and overexpressed in these tumors. Half of the eight ovarian tumor patients carried heterozygous Ile/Val genotypes. In contrast to breast tumors, all these ovarian cancer specimens showed the presence of the Ile allele. In our selected set of tumors, the Val allele was overrepresented in the subset of HER2-positive breast cancers and the Ile allele in serous ovarian cancer. Further analyses of tumors with known gene amplifications and overexpression may reveal novel associations between germline polymorphisms and development of sporadic tumors.
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Affiliation(s)
- Marjut Puputti
- Laboratory of Molecular Oncology, Department of Oncology, Helsinki University Central Hospital, Biomedicum Helsinki, P.O. Box 700, FIN-00029 Helsinki, Finland
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15
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Cox DG, Hankinson SE, Hunter DJ. The erbB2/HER2/neu receptor polymorphism Ile655Val and breast cancer risk. Pharmacogenet Genomics 2005; 15:447-50. [PMID: 15970791 DOI: 10.1097/01.fpc.0000166822.66754.c6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The erbB2 (HER2/neu) gene is found amplified in tumours. A single nucleotide polymorphism at codon 655 (Ile655Val) has been studied in a number of case-control studies with respect to breast cancer risk, with conflicting results. The aim of the present study was to examine the association between this polymorphism and breast cancer risk in a prospective, predominantly Caucasian cohort of women, the Nurses' Health Study. We genotyped the Ile655Val single nucleotide polymorphism (rs1801200) in 1271 incident breast cancer cases, and 1667 controls who were selected from the Nurses' Health Study blood cohort. Controls were matched to cases on age, menopausal status, fasting status and postmenopausal hormone use at blood draw. An inverse association was observed between the Val/Val genotype and breast cancer risk (Val/Val versus Ile/Ile odds ratio=0.68, 95% confidence interval 0.47-0.98). We conclude that this polymorphism is not associated with an increase in breast cancer risk, and may in fact be associated with a modest decrease in risk.
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Affiliation(s)
- David G Cox
- Department of Epidemiology, Harvard School of Public Health, Brigham and Women's Hospital and Harvard Medical School, Harvard School of Public Health, Boston, Massachusetts 02115, USA.
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16
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Nelson SE, Gould MN, Hampton JM, Trentham-Dietz A. A case-control study of the HER2 Ile655Val polymorphism in relation to risk of invasive breast cancer. Breast Cancer Res 2005; 7:R357-64. [PMID: 15987431 PMCID: PMC1143556 DOI: 10.1186/bcr1004] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2004] [Revised: 01/14/2005] [Accepted: 01/26/2005] [Indexed: 11/27/2022] Open
Abstract
Background Overexpression of the HER2 proto-oncogene in human cancer cells has been associated with a poor prognosis, and survival improves with therapy targeting the HER2 gene. Animal studies and protein modeling suggest that the Ile655Val polymorphism located in the transmembrane domain of the HER2 protein might influence breast cancer development by altering the efficiency of homodimerization. Methods To investigate this genetic polymorphism, incident cases of invasive breast cancer (N = 1,094) and population controls of a similar age (N = 976) were interviewed during 2001 to 2003 regarding their risk factors for breast cancer. By using DNA collected from buccal samples mailed by the participants, the HER2 Ile655Val polymorphism was evaluated with the Applied Biosystems allelic discrimination assay. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were estimated by logistic regression adjusted for numerous breast cancer risk factors. Analysis was restricted to women with self-reported European descent. Results Prevalence of the Val/Val genotype was 5.6% in cases and 7.1% in controls. In comparison with the Ile/Ile genotype, the Ile/Val genotype was not significantly associated with breast cancer risk (OR 0.97, 95% CI 0.79 to 1.18), whereas the Val/Val genotype was associated with a reduced risk (OR 0.63, 95% CI 0.42 to 0.92). This inverse association seemed strongest in older women (OR 0.51, 95% CI 0.29 to 0.89 for women aged more than 55 years), women without a family history of breast cancer (OR 0.54, 95% CI 0.35 to 0.84), postmenopausal women with greater body mass index (OR 0.43, 95% CI 0.20 to 0.91 for a body mass index of 25.3 kg/m2 or more), and cases diagnosed with non-localized breast cancer (OR 0.49, 95% CI 0.26 to 0.90). Conclusion Although results from our population-based case-control study show an inverse association between the HER2 Ile655Val polymorphism and risk of invasive breast cancer, most other studies of this single-nucleotide polymorphism suggest an overall null association. Any further study of this polymorphism should involve sample populations with complete risk factor information and sufficient power to evaluate gene-environment interactions between the HER2 polymorphism and factors such as age and family history of breast cancer.
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Affiliation(s)
- Stephanie E Nelson
- McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, Wisconsin, USA
| | - Michael N Gould
- McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, Wisconsin, USA
- Department of Oncology, University of Wisconsin, Madison, Wisconsin, USA
| | - John M Hampton
- University of Wisconsin Comprehensive Cancer Center, Madison, Wisconsin, USA
| | - Amy Trentham-Dietz
- University of Wisconsin Comprehensive Cancer Center, Madison, Wisconsin, USA
- Department of Population Health Sciences, University of Wisconsin, Madison, Wisconsin, USA
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17
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Millikan RC, Hummer AJ, Wolff MS, Hishida A, Begg CB. HER2 codon 655 polymorphism and breast cancer: results from kin-cohort and case?control analyses. Breast Cancer Res Treat 2005; 89:309-12. [PMID: 15754131 DOI: 10.1007/s10549-004-2171-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Several published epidemiologic studies show increased breast cancer risk for carriers of the Val-allele at codon 655 of the HER2 gene. We conducted additional analyses using data from three studies, including case-control analyses stratified on age and kin-cohort analyses using relatives of cases and controls. The results provide additional evidence that HER2 codon 655 genotype may predispose to early-onset breast cancer.
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Affiliation(s)
- Robert C Millikan
- Department of Epidemiology, School of Public Health, University of North Carolina, CB #7435, Chapel Hill, NC 27599-7435, USA.
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18
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Aston CE, Ralph DA, Lalo DP, Manjeshwar S, Gramling BA, DeFreese DC, West AD, Branam DE, Thompson LF, Craft MA, Mitchell DS, Shimasaki CD, Mulvihill JJ, Jupe ER. Oligogenic combinations associated with breast cancer risk in women under 53 years of age. Hum Genet 2004; 116:208-21. [PMID: 15611867 DOI: 10.1007/s00439-004-1206-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2004] [Accepted: 09/18/2004] [Indexed: 11/27/2022]
Abstract
Common, but weakly penetrant, functional polymorphisms probably account for most of the genetic risk for breast cancer in the general population. Current polygenic risk models assume that component genes act independently. To test for potential gene-gene interactions, single nucleotide polymorphisms in ten genes with known or predicted roles in breast carcinogenesis were examined in a case-control study of 631 Caucasian women diagnosed with breast cancer under the age of 53 years and 1,504 controls under the age of 53 years. Association of breast cancer risk with individual genes and with two- and three-gene combinations was analyzed. Sixty-nine oligogenotypes from 37 distinct two- and three-gene combinations met stringent criteria for significance. Significant odds ratios (ORs) covered a 12-fold range: 0.5-5.9. Of the observed ORs, 17% differed significantly from the ORs predicted by a model of independent gene action, suggesting epistasis, i.e., that these genes interact to affect breast cancer risk in a manner not predictable from single gene effects. Exploration of the biological basis for these oligogenic interactions might reveal etiologic or therapeutic insights into breast cancer and other cancers.
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Affiliation(s)
- Christopher E Aston
- Program in Arthritis and Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA.
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Kamali-Sarvestani E, Talei AR, Merat A. Ile to Val polymorphism at codon 655 of HER-2 gene and breast cancer risk in Iranian women. Cancer Lett 2004; 215:83-7. [PMID: 15374636 DOI: 10.1016/j.canlet.2004.04.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2003] [Revised: 04/15/2004] [Accepted: 04/18/2004] [Indexed: 10/26/2022]
Abstract
The earlier reports on the association between the Ile to Val polymorphism at codon 655 of HER-2 and susceptibility to breast cancer has not been found to hold true for all ethnic populations. Two hundred and four cases and 138 controls were collected to investigate the association of HER-2 Ile655Val polymorphism with the risk of breast cancer development and progression in Iranian population. This association was not found to be significant in the present study (OR = 1.16, 95% CI: 0.67-2.03). The association between HER-2 genotypes frequency and clinicopathological data was also insignificant, suggesting that the HER-2 polymorphism at codon 655 is unlikely to be a susceptibility locus in Iranian patients with breast cancer.
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Affiliation(s)
- Eskandar Kamali-Sarvestani
- Department of Immunology, Medical School, Shiraz University of Medical Sciences, PO Box No. 71345-1798, Shiraz Iran.
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20
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Sigurdson AJ, Hauptmann M, Chatterjee N, Alexander BH, Doody MM, Rutter JL, Struewing JP. Kin-cohort estimates for familial breast cancer risk in relation to variants in DNA base excision repair, BRCA1 interacting and growth factor genes. BMC Cancer 2004; 4:9. [PMID: 15113441 PMCID: PMC408462 DOI: 10.1186/1471-2407-4-9] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2004] [Accepted: 03/12/2004] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Subtle functional deficiencies in highly conserved DNA repair or growth regulatory processes resulting from polymorphic variation may increase genetic susceptibility to breast cancer. Polymorphisms in DNA repair genes can impact protein function leading to genomic instability facilitated by growth stimulation and increased cancer risk. Thus, 19 single nucleotide polymorphisms (SNPs) in eight genes involved in base excision repair (XRCC1, APEX, POLD1), BRCA1 protein interaction (BRIP1, ZNF350, BRCA2), and growth regulation (TGFss1, IGFBP3) were evaluated. METHODS Genomic DNA samples were used in Taqman 5'-nuclease assays for most SNPs. Breast cancer risk to ages 50 and 70 were estimated using the kin-cohort method in which genotypes of relatives are inferred based on the known genotype of the index subject and Mendelian inheritance patterns. Family cancer history data was collected from a series of genotyped breast cancer cases (N = 748) identified within a cohort of female US radiologic technologists. Among 2,430 female first-degree relatives of cases, 190 breast cancers were reported. RESULTS Genotypes associated with increased risk were: XRCC1 R194W (WW and RW vs. RR, cumulative risk up to age 70, risk ratio (RR) = 2.3; 95% CI 1.3-3.8); XRCC1 R399Q (QQ vs. RR, cumulative risk up to age 70, RR = 1.9; 1.1-3.9); and BRIP1 (or BACH1) P919S (SS vs. PP, cumulative risk up to age 50, RR = 6.9; 1.6-29.3). The risk for those heterozygous for BRCA2 N372H and APEX D148E were significantly lower than risks for homozygotes of either allele, and these were the only two results that remained significant after adjusting for multiple comparisons. No associations with breast cancer were observed for: APEX Q51H; XRCC1 R280H; IGFPB3 -202A>C; TGFss1 L10P, P25R, and T263I; BRCA2 N289H and T1915M; BRIP1 -64A>C; and ZNF350 (or ZBRK1) 1845C>T, L66P, R501S, and S472P. CONCLUSION Some variants in genes within the base-excision repair pathway (XRCC1) and BRCA1 interacting proteins (BRIP1) may play a role as low penetrance breast cancer risk alleles. Previous association studies of breast cancer and BRCA2 N372H and functional observations for APEX D148E ran counter to our findings of decreased risks. Due to the many comparisons, cautious interpretation and replication of these relationships are warranted.
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Affiliation(s)
- Alice J Sigurdson
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, 6120 Executive Boulevard, Bethesda, Maryland, 20892-7238, USA
| | - Michael Hauptmann
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, 6120 Executive Boulevard, Bethesda, Maryland, 20892-7238, USA
| | - Nilanjan Chatterjee
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, 6120 Executive Boulevard, Bethesda, Maryland, 20892-7238, USA
| | - Bruce H Alexander
- Division of Environmental and Occupational Health, University of Minnesota, MMC 807 Mayo Building, 420 Delaware Street S.E., Minneapolis, MN, 55455, USA
| | - Michele Morin Doody
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, 6120 Executive Boulevard, Bethesda, Maryland, 20892-7238, USA
| | - Joni L Rutter
- Laboratory of Population Genetics, National Cancer Institute, NIH, DHHS, Building 41, D702, Bethesda, Maryland, 20892-5060, USA
| | - Jeffery P Struewing
- Laboratory of Population Genetics, National Cancer Institute, NIH, DHHS, Building 41, D702, Bethesda, Maryland, 20892-5060, USA
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Abstract
A family history of breast cancer poses higher risks for Jewish versus non-Jewish women, particularly for early-onset breast cancer. This appears to be due in large part to the high prevalence (2.5%) of three BRCA1 and BRCA2 founder mutations in Ashkenazi Jews. About 4 to 8% of non-Jewish male breast cancer cases versus 19% of Jewish male breast cancer cases carry germline BRCA mutations. Jewish women are disproportionately impacted by BRCA mutations throughout life, with a 10% carrier rate for breast cancer diagnosed at any age and a 21 to 30% carrier rate for breast cancer diagnosed by age 40. Comparable rates in non-Jewish populations are 6.1% for breast cancer diagnosed before age 50. Lifetime penetrance estimates based on genotyping of probands have ranged widely in Jewish and non-Jewish populations. However, a study of 1008 Jewish women with breast cancer which extended genotyping to relatives found high penetrance rates with considerably smaller standard errors. This study and studies of early-onset incident breast cancer in non-Jews have found that at least half of high-risk cases would be missed by family history screening alone. While the carrier rate in non-Jewish populations is too low to consider genetic screening, the carrier rate in Ashkenazi Jews is high and genetic screening poses fewer technical barriers. The high genetic attributable cancer risks of Ashkenazi BRCA founder mutations, the sobering lethality of ovarian and early onset breast cancers, and the increasing clarity about effectiveness of medical interventions make imperative further dialogue and research to keep guidelines for genetic screening up to date.
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Affiliation(s)
- Wendy S Rubinstein
- Northwestern University Feinberg School of Medicine Chicago, 1000 Central Street, Suite 620, Evanston, IL 60201, USA.
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