Abstract
Previous epidemiological studies have evaluated the association between the ABCB1 polymorphism and the risk of breast cancer with conflicting results. Hence, we conducted a meta-analysis of the ABCB1 gene and risk of breast cancer to obtain the most reliable estimate of the association. PubMed, Embase, and Web of Science databases were searched. A total of eight studies including 3,829 cases and 6,193 controls were identified. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were extracted and pooled to assess the strength of associations between the ABCB1 C3435T and rs2214102 G>A polymorphisms and risk of breast cancer. Of these studies, only one deviated from Hardy–Weinberg equilibrium. Summary estimates indicated that the ABCB1 C3435T polymorphism was not associated with increased risk of breast cancer in the allele contrast model (T vs. C, pooled OR = 1.15; 95% CI = 0.89–1.48); the co-dominant model (CT vs. CC, OR = 1.12 [0.86–1.46] and TT vs. CC, OR = 1.30 [0.79–2.15]); the dominant model (OR = 0.80 [0.63–1.02]; and the recessive model (OR = 0.83 [0.57–1.22]). In the sensitivity analysis by ethnicity, no statistically significant associations were detected in Asians. However, in Caucasian women the T allele contrast model and the TT genotype were each associated with increased risk: T vs. C, pooled OR (95% CI) = 1.26 (1.04–1.52) and TT vs. CC, OR = 1.48 (1.04–2.11). Accordingly, the dominant model yielded statistically significant results (pooled OR = 0.71, 95% CI: 0.52–0.96) but not with the allele contrast model or the co-dominant model. There was evidence of publication bias (P = 0.02 for recessive model). In conclusion, there is limited evidence to indicate that the ABCB1 C3435T and rs2214102 G>A polymorphisms are associated with increased risk of breast cancer.
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References
Sant M, Francisci S, Capocaccia R, Verdecchia A, Allemani C, Berrino F (2006) Time trends of breast cancer survival in Europe in relation to incidence and mortality. Int J Cancer 119(10):2417–2422
Jemal A, Siegel R, Ward E, Hao Y, Xu J, Thun MJ (2009) Cancer statistics, 2009. CA Cancer J Clin 59(4):225–249
Lichtenstein P, Holm NV, Verkasalo PK et al (2000) Environmental and heritable factors in the causation of cancer—analyses of cohorts of twins from Sweden, Denmark, and Finland. N Engl J Med 343(2):78–85
Dong LM, Potter JD, White E, Ulrich CM, Cardon LR, Peters U (2008) Genetic susceptibility to cancer: the role of polymorphisms in candidate genes. JAMA 299(20):2423–2436
Hoffmeyer S, Burk O, von RO et al (2000) Functional polymorphisms of the human multidrug-resistance gene: multiple sequence variations and correlation of one allele with P-glycoprotein expression and activity in vivo. Proc Natl Acad Sci USA 97(7):3473–3478
Brinkmann U, Roots I, Eichelbaum M (2001) Pharmacogenetics of the human drug-transporter gene MDR1: impact of polymorphisms on pharmacotherapy. Drug Discov Today 6(16):835–839
Brinkmann U, Eichelbaum M (2001) Polymorphisms in the ABC drug transporter gene MDR1. Pharmacogenomics J 1(1):59–64
George J, Dharanipragada K, Krishnamachari S, Chandrasekaran A, Sam SS, Sunder E (2009) A single-nucleotide polymorphism in the MDR1 gene as a predictor of response to neoadjuvant chemotherapy in breast cancer. Clin Breast Cancer 9(3):161–165
Tatari F, Salek R, Mosaffa F, Khedri A, Behravan J (2009) Association of C3435T single-nucleotide polymorphism of MDR1 gene with breast cancer in an Iranian population. DNA Cell Biol 28(5):259–263
Henriquez-Hernandez LA, Murias-Rosales A, Hernandez GA et al (2009) Gene polymorphisms in TYMS, MTHFR, p53 and MDR1 as risk factors for breast cancer: a case–control study. Oncol Rep 22(6):1425–1433
Taheri M, Mahjoubi F, Omranipour R (2010) Effect of MDR1 polymorphism on multidrug resistance expression in breast cancer patients. Genet Mol Res 9(1):34–40
Nordgard SH, Ritchie MD, Jensrud SD et al (2007) ABCB1 and GST polymorphisms associated with TP53 status in breast cancer. Pharmacogenet Genomics 17(2):127–136
Jamroziak K, Mlynarski W, Balcerczak E et al (2004) Functional C3435T polymorphism of MDR1 gene: an impact on genetic susceptibility and clinical outcome of childhood acute lymphoblastic leukemia. Eur J Haematol 72(5):314–321
Gervasini G, Carrillo JA, Garcia M, San JC, Cabanillas A, Benitez J (2006) Adenosine triphosphate-binding cassette B1 (ABCB1) (multidrug resistance 1) G2677T/A gene polymorphism is associated with high risk of lung cancer. Cancer 107(12):2850–2857
Sauna ZE, Kimchi-Sarfaty C, Ambudkar SV, Gottesman MM (2007) Silent polymorphisms speak: how they affect pharmacogenomics and the treatment of cancer. Cancer Res 67(20):9609–9612
Zubor P, Lasabova Z, Hatok J, Stanclova A, Danko J (2007) A polymorphism C3435T of the MDR-1 gene associated with smoking or high body mass index increases the risk of sporadic breast cancer in women. Oncol Rep 18(1):211–217
(2010) Polymorphisms in the BRCA1 and ABCB1 genes modulate menopausal hormone therapy associated breast cancer risk in postmenopausal women. Breast Cancer Res Treat 120(3):727–36
Cizmarikova M, Wagnerova M, Schonova L et al (2010) MDR1 (C3435T) polymorphism: relation to the risk of breast cancer and therapeutic outcome. Pharmacogenomics J 10(1):62–69
Turgut S, Yaren A, Kursunluoglu R, Turgut G (2007) MDR1 C3435T polymorphism in patients with breast cancer. Arch Med Res 38(5):539–544
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Pei-Hua Lu and Min-bin Chen contributed equally to this study and should be considered as co-first authors.
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Lu, PH., Wei, MX., Yang, J. et al. Association between two polymorphisms of ABCB1 and breast cancer risk in the current studies: a meta-analysis. Breast Cancer Res Treat 125, 537–543 (2011). https://doi.org/10.1007/s10549-010-1033-6
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DOI: https://doi.org/10.1007/s10549-010-1033-6