Carcinogenesis Advance Access originally published online on June 23, 2005
Carcinogenesis 2005 26(11):1975-1977; doi:10.1093/carcin/bgi164
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Carcinogenesis vol.26 no.11 © Oxford University Press 2005; all rights reserved.
Association of death receptor 4 haplotype 626C683C with an increased breast cancer risk
1 Division of Molecular Genetic Epidemiology, German Cancer Research Center, Heidelberg, Germany, 2 Department of Biosciences at Novum, Karolinska Institute, Huddinge, Sweden, 3 Department of Gynaecology and Obstetrics, Klinikum rechts der Isar at the Technical University, Munich, Germany, 4 Institute of Human Genetics, University of Heidelberg, Heidelberg, Germany, 5 Department of Gynaecology and Obstetrics, Division of Molecular Gynaeco-Oncology, Clinical Center University of Cologne, Germany, 6 Department of Gynaecology and Obstetrics at the Ludwig-Maximilians-University, Munich, Germany and 7 Institute of Transfusion Medicine and Immunology, Red Cross Blood Service of Baden-Württemberg-Hessia, Faculty of Clinical Medicine, University of Heidelberg, Mannheim, Germany
* To whom correspondence should be addressed. Tel: +49 6221 421802; Fax: +49 6221 421810; Email: b.frank{at}dkfz.de
Dysregulation of apoptosis plays a crucial role in carcinogenesis. Tumour necrosis factor-related apoptosis-inducing ligand stimulates the extrinsic apoptotic pathway by binding to death receptor 4 (DR4). Thus, genetic alterations within the candidate tumour suppressor gene DR4 would be expected to provoke a deficient apoptotic signalling thereby facilitating the development of cancer. The DR4 variants Thr209Arg and Glu228Ala were genotyped in a series of 521 breast cancer cases and 1100 control subjects from Germany, determining their impact on breast cancer risk. Neither Thr209Arg (626C>G) nor Glu228Ala (683A>C) alone were significantly associated with breast cancer risk [odds ratio (OR) = 0.84, 95% confidence interval (CI) = 0.651.08, P = 0.18 and OR = 0.89, 95% CI = 0.721.12, P = 0.30]. However, haplotype analysis revealed a 3.5-fold risk for carriers of the 626C683C haplotype (OR = 3.52, 95% CI = 1.458.52, P = 0.003).
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