Comprehensive analysis of microRNAs and their target genes in oral submucous fibrosis

Padacherri Vethil Jishnu1, Sangeetha U Shenoy1, Mohit Sharma2

  • 1Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India.

Oral Diseases
|April 25, 2022
PubMed

Insights

This study computationally analyzes microRNAs (miRNAs) in oral submucous fibrosis (OSF), identifying 13 deregulated miRNAs and 371 target genes. Understanding these miRNA-gene interactions offers potential therapeutic strategies for fibrosis and cancer.

Area of Science:

  • Oncology
  • Genetics
  • Molecular Biology

Background:

  • Oral submucous fibrosis (OSF) is a precancerous condition characterized by progressive fibrosis.
  • MicroRNAs (miRNAs) are key regulators of gene expression implicated in various diseases, including cancer.
  • The precise role of miRNAs in the oncogenic transformation associated with OSF requires further elucidation.

Purpose of the Study:

  • To computationally identify and analyze experimentally validated microRNAs (miRNAs) involved in the development of the oncogenic phenotype in oral submucous fibrosis (OSF).
  • To explore the interactions between deregulated miRNAs and their target genes within cancer-related pathways in OSF.
  • To understand the physiological role of miRNA-mediated signaling in fibrosis and its potential link to cancer progression.

Main Methods:

  • A comprehensive literature review was conducted using MEDLINE, Web of Science, Embase, and Scopus to identify altered miRNA expression in OSF.
  • miRNA-mRNA interactions were analyzed using miRTarBase 8.0.
  • Pathway analysis was performed using MIENTURNET, and enrichment analysis was employed to elucidate miRNA functions in cancer-related biological processes.
  • miRNA-mRNA interactions were visualized using Cytoscape.

Main Results:

  • Thirteen specific miRNAs (including hsa-miR-499a, hsa-miR-200b/c, hsa-miR-31, hsa-miR-21) were found to be significantly deregulated in OSF.
  • A total of 371 experimentally validated genes were identified as targets interacting with these OSF-associated miRNAs.
  • Enrichment analysis revealed that targets of both antifibrotic and profibrotic miRNAs were significantly associated with cancer-related pathways.

Conclusions:

  • Dysregulated miRNAs and their target genes play a significant physiological role in the fibrotic process of OSF.
  • The identified miRNA-target gene interactions are implicated in pathways crucial for cancer development.
  • Targeting specific miRNA-mediated fibrotic signaling pathways presents a potential therapeutic avenue for ameliorating OSF and its associated oncogenic risks.