Examining interactions among SNPs that can explain the prognostic variability in colorectal cancer ...

• Main Author: Curtis, Aaron Albert
• Format: Text
• Language: English
• Published: Memorial University of Newfoundland 2023
• Subjects: Newfoundland
• Online Access: https://dx.doi.org/10.48336/t4fg-5w67; https://research.library.mun.ca/15965/

Background: Colorectal cancer is a significant medical burden worldwide and in Newfoundland and Labrador. Examining the relationships of SNP interactions with survival outcomes can help identify new prognostic markers for this disease. Objectives: To examine associations between colorectal cancer survival outcomes and interactions of SNPs from MMP family and VEGF interactome genes using data-reduction methods. Methods: Two data-reduction software programs, Cox-MDR and GMDR 0.9, were applied to the data of patients from the Newfoundland Familial Colorectal Cancer Registry. Eight datasets were investigated: one for the MMP gene SNPs (201 SNPs), and seven for the VEGF interaction networks (total 1,517 SNPs). Significance of interaction models was assessed using permutation testing. Associations between significant interaction models and clinical outcomes were confirmed using multivariable regression methods. Results: For the MMP dataset two multi-SNP models and one single-SNP model were identified, while ...