Age-associated gene expression in normal breast tissue mirrors qualitative age-at-incidence patterns for breast cancer

ABSTRACT: Background: Age is the strongest breast cancer risk factor, with overall breast cancer risk increasing steadily beginning at approximately 30 years of age. However, while breast cancer risk is lower among younger women, young women’s breast cancer may be more aggressive. Though several genomic and epidemiologic studies have shown higher prevalence of aggressive, estrogen-receptor negative breast cancer in younger women, the age-related gene expression that predisposes to these tumors is poorly understood. Characterizing age-related patterns of gene expression in normal breast tissues may provide insights on etiology of distinct breast cancer subtypes that arise from these tissues. Methods: To identify age-related changes in normal breast tissue, 96 tissue specimens from reduction mammoplas

ORGANISM(S): Homo sapiens

SUBMITTER: Troester Melissa 

PROVIDER: S-ECPF-GEOD-43973 | biostudies-other |

REPOSITORIES: biostudies-other