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Updated: Aug 9, 2025

Methylated DNA Immunoprecipitation
Published on: January 2, 2009
Modulating epigenetic modifications for cancer therapy (Review)
Leonardo Josué Castro-Muñoz1, Elenaé Vázquez Ulloa2, Cecilia Sahlgren2
1The Wistar Institute, Philadelphia, PA 19104, USA.
Abstract:
Cancer is a global public health concern. Alterations in epigenetic processes are among the earliest genomic aberrations occurring during cancer development and are closely related to progression. Unlike genetic mutations, aberrations in epigenetic processes are reversible, which opens the possibility for novel pharmacological treatments. Non‑coding RNAs (ncRNAs) represent an essential epigenetic mechanism, and emerging evidence links ncRNAs to carcinogenesis. Epigenetic drugs (epidrugs) are a group of promising target therapies for cancer treatment acting as coadjuvants to reverse drug resistance in cancer. The present review describes central epigenetic aberrations during malignant transformation and explains how epidrugs target DNA methylation, histone modifications and ncRNAs. Furthermore, clinical trials focused on evaluating the effect of these epidrugs alone or in combination with other anticancer therapies and other ncRNA‑based therapies are discussed. The use of epidrugs promises to be an effective tool for reversing drug resistance in some patients with cancer.
Insights
Epigenetic drugs offer a promising avenue for cancer treatment by reversing epigenetic alterations and drug resistance. These therapies target DNA methylation, histone modifications, and non-coding RNAs, showing potential in clinical trials.
Area of Science:
- Oncology and Molecular Biology
- Genetics and Epigenetics
Background:
- Epigenetic alterations are early events in cancer development and progression.
- Unlike genetic mutations, epigenetic changes are reversible, offering therapeutic opportunities.
- Non-coding RNAs (ncRNAs) are key epigenetic regulators implicated in carcinogenesis.
Approach:
- This review details central epigenetic aberrations in cancer.
- It explains how epigenetic drugs (epidrugs) target DNA methylation, histone modifications, and ncRNAs.
- Clinical trials evaluating epidrugs, alone or combined with other therapies, are discussed.
Key Points:
- Epigenetic drugs are promising targeted therapies and coadjuvants to overcome cancer drug resistance.
- Epidrugs modulate DNA methylation, histone modifications, and ncRNA activity.
- ncRNAs play a crucial role in epigenetic regulation and cancer development.
Conclusions:
- Epigenetic drugs represent a novel therapeutic strategy for cancer treatment.
- Targeting epigenetic mechanisms, including ncRNAs, can reverse drug resistance in cancer patients.
- Further clinical evaluation of epidrugs and ncRNA-based therapies is warranted.
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