Identification of replication factor C subunit 4 as a potential therapeutic target in esophageal squamous cell

Zhenzhen Yang1, Cheng Chang2,3, Na Gao1,4

  • 1The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou, 450003, Henan, P.R. China.

Discover Oncology
|May 22, 2026
PubMed
Abstract

Insights

Researchers identified novel molecular targets for esophageal squamous cell carcinoma (ESCC). Aurora kinase A (AURKA), KIF4A, and replication factor C subunit 4 (RFC4) show potential as diagnostic and prognostic biomarkers for ESCC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Bioinformatics

Background:

  • Esophageal squamous cell carcinoma (ESCC) is a lethal and aggressive malignancy globally.
  • Identifying novel molecular targets is crucial for advancing ESCC diagnosis and targeted therapy.

Purpose of the Study:

  • To identify novel molecular targets and biomarkers for esophageal squamous cell carcinoma (ESCC).
  • To explore the diagnostic and prognostic potential of identified biomarkers in ESCC.

Main Methods:

  • Analysis of gene expression profiles from GEO datasets.
  • Application of functional enrichment, protein-protein interaction networks, and machine learning for biomarker screening.
  • Immune infiltration analysis and immunohistochemistry for clinical relevance assessment.

Main Results:

  • Identified 752 differentially expressed genes in ESCC, with pathways like DNA replication and mismatch repair upregulated.
  • Discovered key hub genes and diagnostic biomarkers: aurora kinase A (AURKA), kinesin family member 4A (KIF4A), and replication factor C subunit 4 (RFC4) with high diagnostic accuracy (AUC 0.976-0.983).
  • RFC4 expression correlated with mast cell infiltration, was elevated in ESCC tissues, and associated with poor prognosis.

Conclusions:

  • AURKA, KIF4A, and RFC4 are identified as potential in silico biomarkers for ESCC.
  • RFC4 emerges as a promising candidate for diagnostic and prognostic applications in ESCC.
  • Findings offer new insights for ESCC prevention strategies.

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