Journal
CANCER CAUSES & CONTROL
Volume 30, Issue 7, Pages 677-686Publisher
SPRINGER
DOI: 10.1007/s10552-019-01180-4
Keywords
Neighborhood disadvantage; Racial disparities; Triple-negative breast cancer; Inflammation; Epigenetics; Telomere length
Funding
- National Cancer Institute [U01 CA179671, R01 CA169127]
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Neighborhoods encompass complex environments comprised of unique economic, physical, and social characteristics that have a profound impact on the residing individual's health and, collectively, on the community's wellbeing. Neighborhood disadvantage (ND) is one of several factors that prominently contributes to racial breast cancer (BC) health disparities in American women. African American (AA) women develop more aggressive breast cancer features, such as triple-negative receptor status and more advanced histologic grade and tumor stage, and suffer worse clinical outcomes than European American (EA) women. While the adverse effects of neighborhood disadvantage on health, including increased risk of cancer and decreased longevity, have recently come into focus, the specific molecular mechanisms by which neighborhood disadvantage increases BC risk and worsens BC outcomes (survivorship, recurrence, mortality) are not fully elucidated. This review illuminates the probable biological links between neighborhood disadvantage and predominantly BC risk, with an emphasis on stress reactivity and inflammation, epigenetics and telomere length in response to adverse neighborhood conditions.
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