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.

Journal of Oncology
|January 28, 2022
PubMed

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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