DNA methylation profiles in African American prostate cancer patients in relation to disease progression

Genomics
Rohina RubiczJanet L Stanford

Abstract

This study examined whether differential DNA methylation is associated with clinical features of more aggressive disease at diagnosis and prostate cancer recurrence in African American men, who are more likely to die from prostate cancer than other populations. Tumor tissues from 76 African Americans diagnosed with prostate cancer who had radical prostatectomy as their primary treatment were profiled for epigenome-wide DNA methylation levels. Long-term follow-up identified 19 patients with prostate cancer recurrence. Twenty-three CpGs were differentially methylated (FDR q≤0.25, mean methylation difference≥0.10) in patients with vs. without recurrence, including CpGs in GCK, CDKL2, PRDM13, and ZFR2. Methylation differences were also observed between men with metastatic-lethal prostate cancer vs. no recurrence (five CpGs), regional vs. local pathological stage (two CpGs), and higher vs. lower tumor aggressiveness (one CpG). These results indicate that differentially methylated CpG sites identified in tumor tissues of African American men may contribute to prostate cancer aggressiveness.

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Citations

Apr 16, 2020·International Journal of Molecular Sciences·Amelia CasamassimiCiro Abbondanza
Jan 12, 2021·Frontiers in Oncology·Islam El JaddaouiHassan Ghazal
Mar 17, 2020·Pathology, Research and Practice·Renhui YiZhiyong Wu

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