Integrative analysis of negatively regulated miRNA-mRNA axes for esophageal squamous cell carcinoma

Shuang Peng1,1, Shiyu Zhang1,1, Xingchen Fan2,1

  • 1Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.

Abstract

Insights

Researchers identified a key microRNA-messenger RNA (miRNA-mRNA) pair, miR-106b-5p/KIAA0232, as a diagnostic marker for esophageal squamous cell carcinoma (ESCC). This finding sheds light on the role of miRNA-mRNA interactions in ESCC development and tumor immunity.

Area of Science:

  • Oncology
  • Molecular Biology
  • Bioinformatics

Background:

  • MicroRNAs (miRNAs) are crucial regulators of gene expression, impacting tumor development, immune evasion, and metastasis.
  • Understanding miRNA-mRNA interactions is vital for deciphering cancer pathogenesis.

Purpose of the Study:

  • To identify negatively regulatory miRNA-mRNA pairs in esophageal squamous cell carcinoma (ESCC).
  • To establish a diagnostic model for ESCC based on miRNA-mRNA interactions.
  • To explore the role of these interactions in tumor immunity.

Main Methods:

  • Utilized The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases for differential expression analysis of miRNAs and mRNAs.
  • Employed bioinformatics tools (DAVID-mirPath, MiRTarBase, TarBase) to identify and validate miRNA-mRNA axes.
  • Validated findings in esophageal specimens using real-time reverse transcription polymerase chain reaction (RT-qPCR).
  • Assessed predictive value using Receiver Operating Characteristic (ROC) curves and Decision Curve Analysis (DCA).
  • Analyzed interactions with immune features using CIBERSORT.

Main Results:

  • Identified 26 differentially expressed miRNAs and 114 differentially expressed mRNAs.
  • Discovered 37 potential miRNA-mRNA regulatory pairs, with 14 previously observed in esophageal tissues or cell lines.
  • The miR-106b-5p/KIAA0232 signature was identified as a characteristic pair for ESCC.
  • A diagnostic model incorporating this miRNA-mRNA axis demonstrated significant predictive value for ESCC.
  • The miR-106b-5p/KIAA0232 axis may influence the tumor microenvironment by affecting mast cells.

Conclusions:

  • Established a diagnostic model for ESCC utilizing a specific miRNA-mRNA pair.
  • Partially elucidated the complex role of miRNA-mRNA interactions in ESCC pathogenesis, particularly in relation to tumor immunity.