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Author Spotlight: Exploring the Role of FAM83A in Cervical Cancer
Published on: February 9, 2024
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.
Abstract:
Snai2 is a transcription factor that inhibits the proliferation of cervical cancer cells and tumor growth. The expression of Snai2 inhibited the expression of β-catenin and impaired Wnt/β-catenin signaling pathway activity. The results of the RNA sequence in Snai2-overexpressing cervical cancer cells implied a strong correlation between Snai2 and TRIM31 with ubiquitin ligase activity. However, the mechanism by which Snai2 regulates TRIM31 remains unclear. In cervical cancer cells, TRIM31 is highly expressed in cervical cancer cells and carcinoma tissues and promotes the proliferation of cervical cancer cells. Furthermore, overexpression or interference with TRIM31 could increase or inhibit the expression of downstream proteins of the classical Wnt signaling pathway, such as β-catenin, cyclin D1 and c-Myc. To the best of our knowledge, rescue of TRIM31 in Snai2-overexpressing cervical cancer cells restored the expression of β-catenin, cyclin D1 and c-Myc. Finally, Snai2 was shown to transcriptionally inhibit the expression of TRIM31 by recognizing and binding to its E-box located in the promoter region. Our findings provide new evidence that TRIM31 may promote cell proliferation and that Snai2 may impair Wnt/β-catenin signaling pathway activity through the transcriptional inhibition of TRIM31. These findings provide new ideas for the regulation of tumor growth and targeted therapy by Snai2-TRIM31 and the Wnt/β-catenin pathway axis.
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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