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Genetic Contributions to Prostate Cancer Disparities in Men of West African Descent

Journal

FRONTIERS IN ONCOLOGY
Volume 11, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fonc.2021.770500

Keywords

genetics; prostate cancer genetics; prostate cancer disparities; GWAS; Vitamin D; prostate cancer screening; socioeconomic status; precision medicine

Categories

Funding

  1. Division of Health Equities at City Hope
  2. [1T32CA186895]

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Prostate cancer is the second most frequently diagnosed malignancy and cause of death in men worldwide. Disparities in diagnosis, treatment, and survival of PCa patients are correlated to socioeconomic status, education, and access to healthcare. Despite recent studies suggesting equal treatments yield equal outcomes, racial disparities in mortality rates remain significant, indicating molecular and genomic factors may contribute to PCa disparities.
Prostate cancer (PCa) is the second most frequently diagnosed malignancy and the second leading cause of death in men worldwide, after adjusting for age. According to the International Agency for Research on Cancer, continents such as North America and Europe report higher incidence of PCa; however, mortality rates are highest among men of African ancestry in the western, southern, and central regions of Africa and the Caribbean. The American Cancer Society reports, African Americans (AAs), in the United States, have a 1.7 increased incidence and 2.4 times higher mortality rate, compared to European American's (EAs). Hence, early population history in west Africa and the subsequent African Diaspora may play an important role in understanding the global disproportionate burden of PCa shared among Africans and other men of African descent. Nonetheless, disparities involved in diagnosis, treatment, and survival of PCa patients has also been correlated to socioeconomic status, education and access to healthcare. Although recent studies suggest equal PCa treatments yield equal outcomes among patients, data illuminates an unsettling reality of disparities in treatment and care in both, developed and developing countries, especially for men of African descent. Yet, even after adjusting for the effects of the aforementioned factors; racial disparities in mortality rates remain significant. This suggests that molecular and genomic factors may account for much of PCa disparities.

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