Brief Report

Cancer Causes & Control

, Volume 20, Issue 4, pp 487-490

Genetic variants in frizzled-related protein (FRZB) and the risk of colorectal neoplasia

  • Sonja I. BerndtAffiliated withDivision of Cancer Epidemiology & Genetics, National Cancer Institute Email author 
  • , Wen-Yi HuangAffiliated withDivision of Cancer Epidemiology & Genetics, National Cancer Institute
  • , Meredith YeagerAffiliated withDivision of Cancer Epidemiology & Genetics, National Cancer InstituteAdvanced Technology Program, SAIC-Frederick, Inc., National Cancer Institute Frederick
  • , Joel L. WeissfeldAffiliated withUniversity of Pittsburgh
  • , Stephen J. ChanockAffiliated withDivision of Cancer Epidemiology & Genetics, National Cancer Institute
  • , Richard B. HayesAffiliated withDivision of Cancer Epidemiology & Genetics, National Cancer Institute

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Abstract

Objective

The Wnt/APC/β-catenin signaling pathway, which includes frizzled-related protein (FRZB), plays a critical role in the development of colorectal cancer, and recent evidence suggests that the functional polymorphism, FRZB Arg324Gly, may be associated with risk for this disease. To determine if this finding could be replicated, we investigated the association between two FRZB polymorphisms (Arg324Gly and Arg200Trp) and the risk of colorectal adenoma and cancer in nested case–control studies.

Methods

Participants consisted of 1,709 adenoma cases, 620 cancer cases, and 1,849 controls within the Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial. Logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (95% CI) for the associations with colorectal neoplasia.

Results

No association was observed for either polymorphism or any haplotypes with colorectal adenoma or colorectal cancer (p > 0.05 for all).

Conclusion

Our study does not support the previously observed association between the FRZB 324Gly variant and colorectal cancer risk. However, further study of additional genetic variants within this pathway is still warranted, given the important role of the Wnt signaling pathway in colorectal carcinogenesis.

Keywords

Colorectal adenoma Colorectal cancer Polymorphism Wnt signaling pathway