Abstract
ABCC11 is an ATP-binding cassette transporter responsible for the transport of a diverse range of lipophilic compounds. A single nucleotide polymorphism (SNP) encoding an amino acid change has recently been shown to determine whether cerumen (earwax) is wet or dry. We hypothesised that this ABCC11 SNP may be associated with breast cancer risk because an association has been reported between wet earwax and increased risk of breast cancer. We therefore analysed the frequency of the functional SNP in 1342 cases and 2256 controls from two breast cancer studies of Caucasian women but found no evidence for an association with breast cancer risk.
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Acknowledgments
kConFaB is supported by the National Breast Cancer Foundation, the National Health and Medical Research Council of Australia, and the Cancer Councils of Queensland, New South Wales, Western Australia, South Australia, and Victoria. The Clinical Follow-up Study of kConFaB is funded by the National Health and Medical Research Council (NHMRC) of Australia (145684 and 288704). GCT and ABS are supported by Fellowships from the NHMRC. The AOCS, which provided control samples only for the study, was supported by the US Army Medical Research and Materiel Command (DAMD17-01-1-0729), the National Health and Medical Research Council of Australia (199600), and the Cancer Council Tasmania and Cancer Foundation of Western Australia. MBCSG is funded in part by grants from Fondazione Italiana per la Ricerca sul Cancro (Special Project “Hereditary tumours”), Associazione Italiana per la Ricerca sul Cancro (4017), Ministero della Salute (RFPS-2006-3-340203, Extraordinary National Cancer Program 2006 “Alleanza contro il Cancro”, and “Progetto Tumori Femminili”), Ministero dell’Universita’ e Ricerca (RBLAO3-BETH), and by funds from Italian citizens who allocated the 5 × 1000 share of their tax payment in support of the Fondazione IRCCS Istituto Nazionale Tumori, according to Italian laws (INT-Institutional strategic projects “5 × 1000”). We thank kConFab nurses, staff of the Familial Cancer Clinics, Heather Thorne, Eveline Niedermayr, Helene Holland, and Gillian Dite for their contributions to the kConFaB study, and the Clinical Follow-up Study of kConFaB for supplying some data. The AOCS Management Group members include David Bowtell, Adele Green, Penny Webb, Anna DeFazio, and Dorota Gertig.
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Beesley, J., Johnatty, S.E., Chen, X. et al. No evidence for an association between the earwax-associated polymorphism in ABCC11 and breast cancer risk in Caucasian women. Breast Cancer Res Treat 126, 235–239 (2011). https://doi.org/10.1007/s10549-010-1292-2
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DOI: https://doi.org/10.1007/s10549-010-1292-2