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Updated: Aug 4, 2026

Methylated DNA Immunoprecipitation
Published on: January 2, 2009
Cancer epigenomics
1Division of Human Cancer Genetics, Department of Molecular Virology, Immunology and Medical Genetics, The Ohio State University, Columbus OH 43210, USA. plass-1@medctr.osu.edu
Abstract:
Research in cancer epigenomics is driven by the development of novel technologies and the utilization of model organisms ranging from yeasts to plants to vertebrates. For decades, the search for cancer genes has focused on genetic defects that were used as tags for identification of these genes. With the realization that epigenetic modifications, most importantly DNA methylation events, are frequently involved in transcriptional changes in both tumor suppressor genes and oncogenes, techniques have been developed that support the identification of novel cancer genes altered by DNA methylation alone or in combination with genetic events. Recent data demonstrate that, in addition to DNA methylation, chromatin modifications are also involved in gene regulation. We are now beginning to understand this interesting interplay between chromatin modifications, DNA methylation and gene regulation. This review will summarize our current knowledge of DNA methylation and histone modification in normal cells, introduce emerging concepts that show the intimate link between DNA methylation and chromatin modifications, and highlight recent advancements in our understanding of aberrant DNA methylation, with special emphasis on genome-wide hypermethylation.
Insights
Cancer epigenomics research uses new technologies to study DNA methylation and chromatin modifications. Aberrant DNA methylation, especially genome-wide hypermethylation, is increasingly recognized as crucial in cancer gene regulation.
Area of Science:
- Cancer epigenomics
- Molecular biology
- Genetics
Background:
- Cancer gene discovery historically focused on genetic defects.
- Epigenetic modifications, particularly DNA methylation, are now known to alter gene expression in cancer.
- Chromatin modifications also play a significant role in gene regulation.
Purpose of the Study:
- To review current knowledge of DNA methylation and histone modifications in normal cells.
- To introduce the link between DNA methylation and chromatin modifications.
- To highlight advancements in understanding aberrant DNA methylation in cancer.
Main Methods:
- Review of existing research and recent data in cancer epigenomics.
- Focus on DNA methylation and chromatin modification techniques.
- Analysis of genome-wide methylation patterns.
Main Results:
- Epigenetic modifications, including DNA methylation and histone modifications, are integral to gene regulation.
- A strong interplay exists between DNA methylation and chromatin modifications.
- Aberrant DNA methylation, especially genome-wide hypermethylation, is a key feature in cancer development.
Conclusions:
- Epigenetic mechanisms are critical in cancer development and progression.
- Understanding the interplay between DNA methylation and chromatin modifications is essential for cancer research.
- Genome-wide hypermethylation is a significant area of focus in cancer epigenomics.
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