Multifactor dimensionality reduction method identifies novel SNP interactions in the WNT protein interaction networks that are associated with recurrence risk in colorectal cancer

Frontiers in Oncology

Oncology

Yildiz E. Yilmaz¹  Patrick Parfrey²  Megan Carey³  Aaron A. Curtis³  Sevtap Savas⁴  Yajun Yu⁵ 

[1] Department of Mathematics and Statistics, Faculty of Science, Memorial University, St. John’s, NL, Canada;Discipline of Medicine, Faculty of Medicine, Memorial University, St. John’s, NL, Canada;Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John’s, NL, Canada;Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John’s, NL, Canada;Discipline of Oncology, Faculty of Medicine, Memorial University, St. John’s, NL, Canada;Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan, China;

关键词: Wnt pathway;    recurrence;    multifactor dimensionality reduction;    SNP interactions;    colorectal cancer;   

DOI  :  10.3389/fonc.2023.1122229

 received in 2022-12-12, accepted in 2023-02-27,  发布年份 2023

来源: Frontiers

【 摘 要 】

BackgroundInteractions among genetic variants are rarely studied but may explain a part of the variability in patient outcomes.ObjectivesIn this study, we aimed to identify 1 to 3 way interactions among SNPs from five Wnt protein interaction networks that predict the 5-year recurrence risk in a cohort of stage I-III colorectal cancer patients.Methods423 patients recruited to the Newfoundland Familial Colorectal Cancer Registry were included. Five Wnt family member proteins (Wnt1, Wnt2, Wnt5a, Wnt5b, and Wnt11) were selected. The BioGRID database was used to identify the proteins interacting with each of these proteins. Genotypes of the SNPs located in the interaction network genes were retrieved from a genome-wide SNP genotype data previously obtained in the patient cohort. The GMDR 0.9 program was utilized to examine 1-, 2-, and 3-SNP interactions using a 5-fold cross validation step. Top GMDR 0.9 models were assessed by permutation testing and, if significant, prognostic associations were verified by multivariable logistic regression models.ResultsGMDR 0.9 has identified novel 1, 2, and 3-way SNP interactions associated with 5-year recurrence risk in colorectal cancer. Nine of these interactions were multi loci interactions (2-way or 3-way). Identified interaction models were able to distinguish patients based on their 5-year recurrence-free status in multivariable regression models. The significance of interactions was the highest in the 3-SNP models. Several of the identified SNPs were eQTLs, indicating potential biological roles of the genes they were associated with in colorectal cancer recurrence.ConclusionsWe identified novel interacting genetic variants that associate with 5-year recurrence risk in colorectal cancer. A significant portion of the genes identified were previously linked to colorectal cancer pathogenesis or progression. These variants and genes are of interest for future functional and prognostic studies. Our results provide further evidence for the utility of GMDR models in identifying novel prognostic biomarkers and the biological importance of the Wnt pathways in colorectal cancer.

【 授权许可】

Unknown   
Copyright © 2023 Curtis, Yu, Carey, Parfrey, Yilmaz and Savas