Association of Tagging Single Nucleotide Polymorphisms With Breast Cancer in a Sample of Colombian Population: A Case Control Study

Overview

Journal Breast Cancer (Auckl)

Publisher Sage Publications

Date 2020 Apr 29

PMID 32341648

Authors

Angela P Beltran

Edgar Benitez

Martin Rondon

Yeimy V Ariza

Fabio A Aristizabal

Ignacio Briceno

Affiliations

Soon will be listed here.

Abstract

Purpose: Ubiquitin ligase genes can act as oncogenes or tumor suppressor genes. They play a role in various diseases, including development and progression of breast cancer; the objective of this study was to evaluate the association of common variants in the () gene with breast cancer risk in a sample of Colombian population.

Methods: We carried out a case-control study to investigate associations of variants in with breast cancer in women from Colombia. Single nucleotide polymorphisms (SNPs) rs584298, rs2927970, rs59983645, and rs599167 were genotyped in 1022 breast cancer cases and 1023 healthy controls using the iPLEX® and Kompetitive Allele Specific PCR (polymerase chain reaction) (KASP) method. The associations between SNPs and breast cancer were examined by conditional logistic regression. The associations between SNPs and epidemiological/histopathological variables were examined by multinomial logistic regression.

Results: Associations were found between tag SNPs and breast cancer adjusted for the epidemiological risk factors rs584298 genotypes AG and GG ( = .048 and = .004, respectively). The analysis of the disease characteristics showed that SNP rs584298 (genotype AG) ( = .015) shows association with progesterone receptor (PR) status and (genotype AA) ( = .048) shows association with human epidermal growth factor receptor 2 (HER2) status.

Conclusions: The SNP rs584298 in showed associations with breast cancer and the expression of HER2 receptor; when this receptor is amplified, the result is aggressive tumoral subtype and expression of PR receptor that is associated with high-proliferative tumor grade. Validation of this SNP is important to establish whether this variant or the tagged variant is the cause for the risk association showed.

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