TRIM31 acts as an intermediate molecule in the process by which Snai2 impairs the proliferation of cervical cancer

Nan Cui1,2, Yanru Zhang3, Yuan Zhang4

  • 1Department of Reproductive Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.

Frontiers in Oncology
|September 8, 2025
PubMed

Insights

Snai2 inhibits cervical cancer growth by suppressing TRIM31 expression, thereby impairing the Wnt/β-catenin pathway. This reveals a new therapeutic target for cervical cancer treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Snai2 is a transcription factor known to inhibit cervical cancer cell proliferation and tumor growth.
  • Wnt/β-catenin signaling pathway plays a crucial role in cervical cancer progression.
  • The precise mechanism linking Snai2 and TRIM31 in cervical cancer remains elusive.

Purpose of the Study:

  • To elucidate the regulatory mechanism of TRIM31 by Snai2 in cervical cancer.
  • To investigate the role of the Snai2-TRIM31 axis in regulating the Wnt/β-catenin signaling pathway.
  • To explore potential therapeutic strategies targeting Snai2, TRIM31, and the Wnt/β-catenin pathway.

Main Methods:

  • RNA sequencing was performed on Snai2-overexpressing cervical cancer cells.
  • Expression levels of Snai2, TRIM31, β-catenin, cyclin D1, and c-Myc were analyzed.
  • Chromatin immunoprecipitation and luciferase reporter assays were used to confirm transcriptional regulation.

Main Results:

  • Snai2 expression was inversely correlated with TRIM31 expression in cervical cancer cells.
  • TRIM31 promotes cervical cancer cell proliferation and is upregulated in tumor tissues.
  • Snai2 directly binds to the E-box in the TRIM31 promoter, transcriptionally inhibiting its expression.
  • TRIM31 overexpression restored Wnt/β-catenin pathway activity in Snai2-overexpressing cells.

Conclusions:

  • Snai2 inhibits cervical cancer cell proliferation and tumor growth by transcriptionally suppressing TRIM31.
  • TRIM31 promotes cervical cancer progression via activation of the Wnt/β-catenin signaling pathway.
  • The Snai2-TRIM31-Wnt/β-catenin axis represents a promising target for cervical cancer therapy.

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