Associations between TCF7L2 polymorphisms and risk of breast cancer among Hispanic and non-Hispanic White women: the Breast Cancer Health Disparities Study

Details

• Alternative Title:
  Breast Cancer Res Treat
• Personal Author:
  Connor, Avonne E. ; Baumgartner, Richard N. ; Baumgartner, Kathy B. ; Kerber, Richard A. ; Pinkston, Christina ; John, Esther M. ; Torres-Mejia, Gabriela ; Hines, Lisa ; Giuliano, Anna ; Wolff, Roger K. ; Slattery, Martha L.
• Description:
  The transcription factor 7-like 2 (TCF7L2) gene is part of the Wnt/β-catenin signaling pathway and plays a critical role in cell development and growth regulation. TCF7L2 variants rs12255372 and rs7903146 have been associated with risk of Type 2 diabetes. Few epidemiological studies have examined the association between TCF7L2 and breast cancer risk. We investigated the associations between 25 TCF7L2 single nucleotide polymorphisms (SNPs) and breast cancer in Hispanic and non-Hispanic white (NHW) women from the 4-Corner's Breast Cancer Study, the San Francisco Bay Area Breast Cancer Study, and the Mexico Breast Cancer Study. A total of 4,703 Hispanic (2,093 cases, 2,610 controls) and 3,031 NHW (1,431 cases, 1,600 controls) women were included. Odds ratios (OR) and 95 % confidence intervals (CI) were calculated using logistic regression to estimate the association between the TCF7L2 SNPs and breast cancer risk. We also examined effect modification by self-reported ethnicity, genetic admixture, and diabetes history. After adjusting for multiple comparisons, four TCF7L2 SNPs were significantly associated with breast cancer overall: rs7903146 (OR(TT) 1.24; 95 % CI 1.03-1.49), rs3750805 (OR(AT/TT) 1.15; 95 % CI 1.03-1.28), rs7900150 (OR(AA) 1.23; 95 % 1.07-1.42), and rs1225404 (OR(CC) 0.82; 95 % 0.70-0.94). Among women with a history of diabetes, the TT genotype of rs3750804 increased breast cancer risk (OR, 2.46; 95 % CI 1.28-4.73). However, there was no association among women without a diabetes history (OR, 1.06; 95 % CI 0.85-1.32). We did not find significant interactions by ethnicity or by genetic admixture. Findings support an association between TCF7L2 and breast cancer and history of diabetes modifies this association for specific variants.
• Subjects:
  Adult Aged Breast Neoplasms Female Genetic Predisposition To Disease Genotype Hispanic Or Latino Humans Middle Aged Polymorphism, Single Nucleotide Risk Factors Transcription Factor 7-Like 2 Protein White People

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• Source:
  Breast Cancer Res Treat. 2012; 136(2):593-602.
• Pubmed ID:
  23085767
• Pubmed Central ID:
  PMC3662467
• Document Type:
  Journal Article
• Funding:
  CA77305/CA/NCI NIH HHS/United States ; CA078682/CA/NCI NIH HHS/United States ; R01 CA078552/CA/NCI NIH HHS/United States ; HHSN261201000036C/CA/NCI NIH HHS/United States ; R01 CA078762/CA/NCI NIH HHS/United States ; U58 DP000807/DP/NCCDPHP CDC HHS/United States ; R01 CA078802/CA/NCI NIH HHS/United States ; R01 CA078682/CA/NCI NIH HHS/United States ; R01 CA140002/CA/NCI NIH HHS/United States ; 261201000036C/PHS HHS/United States ; R01 CA063446/CA/NCI NIH HHS/United States ; CA078552/CA/NCI NIH HHS/United States ; N01-PC-67000/PC/NCI NIH HHS/United States ; CA14002/CA/NCI NIH HHS/United States ; CA078762/CA/NCI NIH HHS/United States ; CA63446/CA/NCI NIH HHS/United States ; CA078802/CA/NCI NIH HHS/United States
• Volume:
  136
• Issue:
  2
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:e5782a36b2ca3fa7c99c8baa57a49c7327a5be48500657137e8848087c70a8f6
• Download URL:
  https://stacks.cdc.gov/view/cdc/41893/cdc_41893_DS1.pdf
• File Type:
  [PDF - 311.63 KB ]