Journal
METALLOMICS
Volume 1, Issue 3, Pages 222-228Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b903049b
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Funding
- NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES [R01ES005512] Funding Source: NIH RePORTER
- NIEHS NIH HHS [R01 ES005512, R01 ES005512-18] Funding Source: Medline
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Although carcinogenic metals have been known to disrupt a wide range of cellular processes the precise mechanism by which they exert their carcinogenic effects is not known. Over the last decade or two, studies in the field of metal carcinogenesis suggest that epigenetic mechanisms may play a role in metal-induced carcinogenesis. In this review we summarize the evidence demonstrating that exposure to carcinogenic metals such as nickel, arsenic, chromium, and cadmium can perturb DNA methylation levels as well as global and gene specific histone tail posttranslational modification marks. We also wish to emphasize the importance of understanding that gene expression can be regulated by both genetic and epigenetic mechanisms and both these must be considered when studying the mechanism underlying the toxicity and cell transforming ability of carcinogenic metals and other toxicants, as well as aberrant changes in gene expression that occur during disease states such as cancer.
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