Bioinformatics-based identification of miRNAs, mRNA, and regulatory signaling pathways involved in esophageal

Nahid Askari1, Morteza Hadizadeh2

  • 1Department of Biotechnology, Institute of Sciences and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran.

Abstract

Insights

This study investigated microRNA-messenger RNA interactions in esophageal squamous cell carcinoma (ESCC) using gene and miRNA expression data. Key pathways like p53 signaling and extracellular matrix interactions were identified, offering insights for future ESCC prognosis.

Area of Science:

  • Oncology
  • Molecular Biology
  • Bioinformatics

Background:

  • Esophageal squamous cell carcinoma (ESCC) is a prevalent cancer.
  • MicroRNAs (miRNAs) play a regulatory role in human cancers.
  • The specific roles of miRNA-mRNA interactions in ESCC remain largely unknown.

Purpose of the Study:

  • To elucidate miRNA-mRNA interactions in ESCC.
  • To identify key molecular pathways involved in ESCC pathogenesis.
  • To provide evidence for improved ESCC tumor prognosis.

Main Methods:

  • Analysis of miRNA (GSE66274) and gene expression (GSE38129) datasets.
  • Identification of differentially expressed miRNAs (DEmiRNAs) and mRNAs (DEmRNAs) using LIMMA.
  • Construction and visualization of miRNA-mRNA interaction networks using RNAInter and Cytoscape.
  • Gene Ontology (GO) and KEGG pathway enrichment analyses using ClusterProfiler.

Main Results:

  • Identified 39 DEmiRNAs and 478 DEmRNAs.
  • Significant pathways include p53 signaling, ECM-receptor interaction, and AGE-RAGE signaling.
  • Enriched biological processes involve cellular response to amino acid stimulus and apoptotic signaling.
  • Key molecular components include extracellular matrix and collagen structures.

Conclusions:

  • The study reveals significant miRNA-mRNA interactions in ESCC.
  • Identified pathways and molecular components offer potential targets for understanding ESCC.
  • Findings may contribute to the future prognosis of esophageal tumors.