Heritable genomic diversity in breast cancer driver genes and associations with risk in a Chilean population
Biol. Res
; 55: 20-20, 2022. ilus, tab
Article
in En
| LILACS
| ID: biblio-1383922
Responsible library:
CL1.1
ABSTRACT
BACKGROUND:
Driver mutations are the genetic components responsible for tumor initiation and progression. These variants, which may be inherited, influence cancer risk and therefore underlie many familial cancers. The present study examines the potential association between SNPs in driver genes SF3B1 (rs4685), TBX3 (rs12366395, rs8853, and rs1061651) and MAP3K1 (rs72758040) and BC in BRCA1/2-negative Chilean families.METHODS:
The SNPs were genotyped in 486 BC cases and 1258 controls by TaqMan Assay.RESULTS:
Our data do not support an association between rs4685C > T, rs8853T > C, or rs1061651T > C and BC risk. However, the rs12366395-G allele (A/G + G/G) was associated with risk in families with a strong history of BC (OR = 1.2 [95% CI 1.0-1.6] p = 0.02 and OR = 1.5 [95% CI 1.0-2.2] p = 0.02, respectively). Moreover, rs72758040-C was associated with increased risk in cases with a moderate-to-strong family history of BC (OR = 1.3 [95% CI 1.0-1.7] p = 0.02 and OR = 1.3 [95% CI 1.0-1.8] p = 0.03 respectively). Finally, risk was significantly higher in homozygous C/C cases from families with a moderate-to-strong BC history (OR = 1.8 [95% CI 1.0-3.1] p = 0.03 and OR = 1.9 [95% CI 1.1-3.4] p = 0.01, respectively). We also evaluated the combined impact of rs12366395-G and rs72758040-C. Familial BC risk increased in a dose-dependent manner with risk allele count, reflecting an additive effect (p-trend = 0.0002).CONCLUSIONS:
Our study suggests that germline variants in driver genes TBX3 (rs12366395) and MAP3K1 (rs72758040) may influence BC risk in BRCA1/2-negative Chilean families. Moreover, the presence of rs12366395-G and rs72758040-C could increase BC risk in a Chilean population.Key words
Full text:
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Index:
LILACS
Main subject:
Breast Neoplasms
Type of study:
Etiology_studies
/
Risk_factors_studies
Limits:
Female
/
Humans
Country/Region as subject:
America do sul
/
Chile
Language:
En
Journal:
Biol. Res
Journal subject:
BIOLOGIA
Year:
2022
Type:
Article