Related Experiment Video
Updated: Jul 12, 2026
08:38
Targeted DNA Methylation Analysis by Next-generation Sequencing
Published on: February 24, 2015
Targeting DNA Methylation: New Paradigms and the Advent of Gene-Selective Tools
Julie Gilbert1, Francesco Calzaferri2
1University of Oxford, Department of Chemistry, 12 Mansfield Road, Oxford OX1 3TA, U.K.
Chemical Research in Toxicology
|July 10, 2026
Summary
DNA methylation is crucial for gene regulation. Current drugs lack specificity, highlighting the need for precise, locus-specific epigenetic tools for cancer research and therapy.
Area of Science:
- Epigenetics and Molecular Biology
- Cancer Therapeutics
Background:
- DNA methylation is vital for cellular physiology and epigenetic gene regulation.
- While DNA methyltransferase inhibitors are approved for hematological malignancies, their lack of gene selectivity causes toxicity and limits efficacy.
- Next-generation sequencing and omics technologies allow high-resolution epigenetic analysis, demanding more precise tools.
Purpose of the Study:
- To review the mechanisms and roles of DNA methylation in epigenetic regulation.
- To evaluate current DNA methylation modulators, including DNMT inhibitors and novel CRISPR-dCas9 systems.
- To discuss the clinical relevance of these modulators and emphasize the need for locus-specific tools.
Main Methods:
- Literature review of DNA methylation mechanisms and epigenetic regulation.
- Analysis of existing pharmacological tools targeting DNA methylation, from DNMT inhibitors to advanced CRISPR-dCas9 fusion systems.
- Discussion of clinical applications and future directions in epigenetic therapy.
Main Results:
- DNA methylation's role extends beyond gene repression, being locus-specific and interacting with other epigenetic factors.
- Current non-gene-selective DNA methylation modulators exhibit limited therapeutic efficacy and off-target toxicity.
- Emerging technologies like CRISPR-dCas9 fusion systems offer potential for precise epigenetic modulation.
Conclusions:
- Precise, locus-specific tools are essential to overcome the limitations of current DNA methylation modulators.
- Advancements in epigenetic research and cancer therapy depend on developing targeted approaches.
- Future strategies must focus on gene selectivity for improved therapeutic outcomes and reduced toxicity.
More Related Videos
Related Concept Videos
01:37Epigenetic Regulation
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
01:46Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
01:29Pharmacogenomics: Identification of New Drug Targets
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
01:16In-vitro Mutagenesis
To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.