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ECRG4 Represses Cell Proliferation and Invasiveness via NFIC/OGN/NF-κB Signaling Pathway in Bladder Cancer

Xin Liang1,2, Jiangang Gao2, Quan Wang3

  • 1Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.

Frontiers in Genetics
|September 14, 2020
PubMed

Insights

Esophageal cancer-related gene-4 (ECRG4) and osteoglycin (OGN) suppress bladder cancer (BCa) progression. ECRG4 promotes OGN expression via NFIC, inhibiting the NF-κB pathway, offering potential BCa biomarkers.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Bladder cancer (BCa) presents high mortality, with unclear molecular mechanisms for many dysregulated genes.
  • Esophageal cancer-related gene-4 (ECRG4) is downregulated in BCa, suggesting a potential tumor-suppressive role.

Purpose of the Study:

  • To elucidate the molecular mechanisms of ECRG4 in bladder cancer.
  • To investigate the relationship between ECRG4, osteoglycin (OGN), and nuclear factor 1 C-type (NFIC) in BCa.

Main Methods:

  • Gene expression analysis in BCa tissues and cell lines.
  • Functional assays assessing cell proliferation, migration, and invasion.
  • Bioinformatics analysis of gene correlations and promoter binding.
  • Investigation of signaling pathway modulation (NF-κB).

Main Results:

  • ECRG4 and OGN are downregulated in BCa and inhibit tumor progression.
  • ECRG4 upregulates NFIC, which in turn promotes OGN transcription.
  • ECRG4 positively regulates NFIC protein levels.
  • ECRG4 inhibits the NF-κB signaling pathway through OGN upregulation.

Conclusions:

  • ECRG4 and OGN act as tumor suppressors in bladder cancer.
  • The ECRG4-NFIC-OGN axis inhibits BCa progression by repressing the NF-κB pathway.
  • This pathway presents potential therapeutic targets and biomarkers for BCa.
Keywords:
ECRG4NF-κB signaling pathwayNFICOGNbladder cancer

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