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Updated: Aug 16, 2026

Methylated DNA Immunoprecipitation
Published on: January 2, 2009
DNA methylation, genomic silencing, and links to nutrition and cancer
Dale C McCabe1, Marie A Caudill
1Human Nutrition and Food Science Department, California State Polytechnic University, Pomona, California, USA.
Abstract:
DNA methylation is a heritable epigenetic feature that is associated with transcriptional silencing, X-chromosome inactivation, genetic imprinting, and genomic stability. The addition of the methyl group is catalyzed by a family of DNA methyltransferases whose co-substrates are DNA and S-adenosylmethionine, the latter being derived from the methionine cycle. Aberrant DNA methylation is linked to numerous pathologies, including cancer. The purpose of this review is to describe DNA methylation and its functions, to examine the relationship between dietary methyl insufficiency and DNA methylation, and to evaluate the associations between DNA methylation and cancer.
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