Abstract
Centrosome amplification has been detected in premalignant lesions and in situ tumors in the breast and in over 70% of invasive breast tumors, and has been associated with aneuploidy and tumor development. Based on these observations, the contribution of commonly inherited genetic variation in candidate genes related to centrosome structure and function to breast cancer risk was evaluated in an association study. Seven-hundred and 82 single nucleotide polymorphisms (SNPs) from 101 centrosomal genes were analyzed in 798 breast cancer cases and 843 controls from the Mayo Clinic Breast Cancer Study to assess the association between these SNPs (both individually and combined) and risk of breast cancer in this population. Eleven SNPs out of 782 from six genes displayed associations with breast cancer risk (P < 0.01). Haplotypes in five genes also displayed significant associations with risk. A two SNP combination of rs10145182 in NIN and rs2134808 in the TUBG1 locus (P-interaction = 0.00001), suggested SNPs in mediators of microtubule nucleation from the centrosome contribute to breast cancer. Evaluation of the simultaneous significance of all SNPs in the centrosome pathway suggested that the centrosome pathway is highly enriched (P = 4.76 × 10−50) for SNPs that are associated with breast cancer risk. Collections of weakly associated genetic variants in the centrosome pathway, rather than individual highly significantly associated SNPs, may account for a putative role for the centrosome pathway in predisposition to breast cancer.
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Acknowledgments
This study was funded in part by a grant 5R01CA122340-02 and a Breast Cancer Specialized Program of Research Excellence (SPORE) grant P50CA166201 from the National Cancer Institute.
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None of the authors have a financial relationship with the organization that sponsored the research (NIH). We further state that we have full control of all primary data and that we agree to allow the journal to review our data if requested.
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Olson, J.E., Wang, X., Pankratz, V.S. et al. Centrosome-related genes, genetic variation, and risk of breast cancer. Breast Cancer Res Treat 125, 221–228 (2011). https://doi.org/10.1007/s10549-010-0950-8
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DOI: https://doi.org/10.1007/s10549-010-0950-8