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DNA methylation in prostate cancer
Long-Cheng Li1, Steven T Okino, Rajvir Dahiya
1Department of Urology, Veterans Affairs Medical Center, and University of California San Francisco, 4150 Clement Street, San Francisco, CA 94121, USA.
Biochimica Et Biophysica Acta
|September 15, 2004
Summary
Epigenetic changes, specifically DNA methylation, disrupt gene expression in prostate cancer. Hypermethylated genes may serve as biomarkers for detecting and assessing risk of this common male malignancy.
Area of Science:
- Oncology
- Epigenetics
- Molecular Biology
Background:
- Prostate cancer is a leading cause of cancer death in US men.
- Established risk factors include age, race, and family history, but molecular bases are unclear.
- Epigenetic events, like DNA methylation, alter gene expression and are implicated in cancer.
Purpose of the Study:
- To review current research on hypermethylated genes in human prostate cancer.
- To explore the role of DNA methylation in age-related, race-related, and hereditary prostate cancer.
- To discuss the potential of hypermethylated genes as biomarkers for prostate cancer detection and risk assessment.
Main Methods:
- Review of current scientific literature on gene methylation in prostate cancer.
- Analysis of epigenetic mechanisms, specifically CpG island hypermethylation.
- Examination of gene expression alterations in cancer-related cellular processes.
Main Results:
- Disruption of epigenetic regulation, including inappropriate CpG island hypermethylation, is observed in tumorigenesis.
- Aberrant gene expression due to methylation affects DNA repair, hormone response, cell cycle, and metastasis.
- Hypermethylated genes are linked to prostate cancer initiation, progression, and metastasis.
Conclusions:
- DNA methylation plays a significant role in prostate cancer development and progression.
- Epigenetic alterations may underlie the known risk factors for prostate cancer.
- Hypermethylated genes show promise as biomarkers for prostate cancer diagnosis and risk stratification.