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Updated: Oct 5, 2025

Author Spotlight: Epigenetic Modifications and Metabolic Rewiring as Targets for Cancer Therapy
Published on: October 18, 2024
Epi-miRNAs: Regulators of the Histone Modification Machinery in Human Cancer
Deniz Mortazavi1, Behnoush Sohrabi2, Meysam Mosallaei3
1Koç University Research Center for Translational Medicine, Istanbul, Turkey.
Abstract:
Cancer is a leading cause of death and disability worldwide. Epigenetic deregulation is one of the most critical mechanisms in carcinogenesis and can be classified into effects on DNA methylation and histone modification. MicroRNAs are small noncoding RNAs involved in fine-tuning their target genes after transcription. Various microRNAs control the expression of histone modifiers and are involved in a variety of cancers. Therefore, overexpression or downregulation of microRNAs can alter cell fate and cause malignancies. In this review, we discuss the role of microRNAs in regulating the histone modification machinery in various cancers, with a focus on the histone-modifying enzymes such as acetylases, deacetylases, methyltransferases, demethylases, kinases, phosphatases, desumoylases, ubiquitinases, and deubiquitinases. Understanding of microRNA-related aberrations underlying histone modifiers in pathogenesis of different cancers can help identify novel therapeutic targets or early detection approaches that allow better management of patients or monitoring of treatment response.
Insights
MicroRNAs regulate histone modifications, crucial epigenetic changes in cancer development. Understanding these microRNA-histone modifier interactions can lead to new cancer therapies and early detection strategies.
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- Epigenetic deregulation, including DNA methylation and histone modification, is a critical mechanism in cancer.
- MicroRNAs (miRNAs), small noncoding RNAs, fine-tune gene expression post-transcriptionally.
- Dysregulation of miRNAs impacts cell fate and contributes to malignancies.
Purpose of the Study:
- To review the role of microRNAs in regulating histone modification machinery across various cancers.
- To highlight the involvement of specific histone-modifying enzymes (e.g., acetylases, deacetylases, methyltransferases) in miRNA-mediated cancer pathogenesis.
- To explore the potential of targeting miRNA-histone modifier interactions for cancer therapeutics and diagnostics.
Main Methods:
- Literature review focusing on microRNAs and histone modification in cancer.
- Analysis of studies detailing miRNA regulation of histone-modifying enzymes.
- Synthesis of information on the impact of these interactions in different cancer types.
Main Results:
- MicroRNAs are key regulators of enzymes involved in histone acetylation, deacetylation, methylation, demethylation, phosphorylation, dephosphorylation, desumoylation, ubiquitination, and deubiquitination.
- Aberrant miRNA control over histone modifiers contributes to the development and progression of various cancers.
- Specific miRNAs and their target histone modifiers are implicated in diverse oncogenic pathways.
Conclusions:
- MicroRNA-mediated regulation of histone modifiers is a significant factor in cancer pathogenesis.
- Targeting these specific molecular interactions presents opportunities for novel cancer therapeutic strategies.
- Further understanding can aid in developing improved early detection and patient monitoring approaches for cancer management.
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