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This study aim to investigate the association of breast cancer risk and prognostic factors with single nucleotide variants of the BRCA1 , BRCA2 , DAPK1, MMP9, TOX3 , and TP53 genes in Jordanian women. Blood samples were collected from 230 Jordanian breast cancer patients for use in DNA extraction followed by genotyping and subsequent statistical analysis. We found that two single nucleotide variants (SNVs) of the BRCA2 gene, namely rs1799944 and rs766173, were significantly associated with breastfeeding status. Likewise, the rs11141901 and rs1041326 SNVs of the DAPK1 gene were linked with co-morbidity ( p-value = 0.002) and family history of BC ( p-value = 0.015), while the rs1045042 SNV of the same gene was associated with both allergy ( p-value = 0.001) and family history of BC ( p-value = 0.02). Tumor differentiation was correlated with the DAPK1 SNVs rs11141901 ( p-value = 0.041) and rs1041326 ( p-value = 0.005). Additionally, the rs2250889 SNV of the MMP9 gene was significantly associated with HER2 status, whereas the TP53 SNVs rs12951053 and rs1042522 were associated with age at menarche ( p-value = 0.043) and breastfeeding status ( p-value = 0.013), respectively. In contrast, the TP53 SNV rs2287497 was significantly linked to age at first pregnancy ( p-value = 0.001), smoking ( p-value = 0.041), and axillary lymph node status ( p-value = 6e -4 ). No such association was found for the BRCA1 and TOX3 SNVs. The current findings suggest significant associations between certain SNVs and breast cancer risk and prognosis in Jordanian women.

journal of cancer

Correlation between Candidate Single Nucleotide Variants and Several Clinicopathological Risk Factors Related to Breast Cancer in Jordanian Women: A Genotype-Phenotype Study