ArticleCancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology2025
Differential DNA Methylation in the Benign and Cancerous Prostate Tissue of African American and European American Men.
Article in Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Methylation reprogramming associated with aggressive prostate cancer and ancestral disparities.Molecular systems biology · 2025Article
- The Years 2015-2025 as a Prospective Decade for the Identification of Specific Methylation Biomarkers of Prostate Cancer.Biomolecules · 2025Review
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Authors and funding
11 authors.
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Abstract
backgroundAfrican American (AA) men are at increased risk of prostate cancer compared with European American (EA) men. Biological mechanisms, including epigenetics, likely contribute to this disparity, but prior studies have been limited by sample size, candidate gene approaches, or lack of epigenome-wide DNA methylation (DNAm) data.
methodsTo improve our understanding of these mechanisms, we compared DNAm features distinguishing tumor and paired histologically benign tissue from 76 AA and 75 EA patients with prostate cancer. We generated genome-wide array-based DNAm data and conducted differential methylation analyses comparing tumor and benign tissues in each ancestry group. We then examined the predictive ability of our identified sites and differential methylation by ancestry group.
resultsWe identified 90,747 and 98,929 differentially methylated CpGs in AA and EA, respectively, with 76,400 common to both groups. We identified 6,267 genes with differentially methylated promoters common to both ancestries and 639 and 1,301 genes unique to AA and EA respectively, as well as differentially methylated pathways. Only 10 CpGs were needed to distinguish tumor from benign based on a receiver operating characteristic curve (AUC > 0.9), with differentially methylated CpGs in one ancestry accurately predicting tumor versus benign in the other group. We also identified ancestry-associated CpGs (89 in tumor, 423 in benign).
conclusionsMethylation features distinguishing tumor and benign were similar for EA and AA men; however, subtle differences were identified. IMPACT: Differences in tumor and ancestry-associated CpGs may reveal differential tumor growth strategies, an important area for future disparities research.
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