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Updated: Mar 11, 2026
An Orthotopic Murine Model of Human Prostate Cancer Metastasis
Published on: September 18, 2013
miR-486-5p suppresses prostate cancer metastasis by targeting Snail and regulating epithelial-mesenchymal transition
Xiaoguang Zhang1, Tong Zhang2, Kuo Yang3
1Department of Urology, Tianjin Third Central Hospital, Tianjin.
Abstract:
The most common cause of death from prostate cancer (PCa) is metastases. There is an increasing body of evidence that microRNAs play an important role in the development of PCa by regulating target genes involved in tumor metastasis. Here, we identified that expression of miR-486-5p was decreased in metastatic C4-2 cells compared to non-metastatic LNCaP cells. Further validation in clinical samples showed that miR-486-5p expression was significantly decreased in metastatic PCa tissues compared to localized PCa tissues. Functional studies demonstrated that increased miR-486-5p expression can suppress cell migration and the invasive ability of C4-2 cells. Moreover, Snail, a key regulator of the epithelial-mesenchymal transition, was verified as a target gene of miR-486-5p. In conclusion, these findings suggest that miR-486-5p plays a suppressive role in mediating the migration and invasion of PCa by directly suppressing the protein expression of Snail and may provide a potential therapeutic target for the disease.
Insights
Decreased microRNA-486-5p (miR-486-5p) expression correlates with prostate cancer (PCa) metastasis. Restoring miR-486-5p suppresses PCa cell migration and invasion by targeting Snail, offering a potential therapeutic strategy.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Prostate cancer (PCa) metastasis is a primary cause of cancer-related death.
- MicroRNAs (miRNAs) are increasingly recognized for their role in regulating PCa metastasis through target gene modulation.
Purpose of the Study:
- To investigate the role of miR-486-5p in prostate cancer metastasis.
- To identify miR-486-5p as a potential biomarker and therapeutic target for metastatic PCa.
Main Methods:
- Comparative analysis of miR-486-5p expression in metastatic (C4-2) versus non-metastatic (LNCaP) PCa cell lines.
- Validation of miR-486-5p expression levels in clinical PCa tissues (metastatic vs. localized).
- Functional assays to assess the impact of miR-486-5p on cell migration and invasion, and identification of Snail as a direct target.
Main Results:
- miR-486-5p expression was significantly lower in metastatic PCa cells and tissues compared to non-metastatic counterparts.
- Overexpression of miR-486-5p inhibited the migration and invasive capabilities of PCa cells.
- Snail, a key regulator of epithelial-mesenchymal transition, was confirmed as a direct target gene suppressed by miR-486-5p.
Conclusions:
- miR-486-5p acts as a tumor suppressor in prostate cancer metastasis.
- The miR-486-5p/Snail axis is a critical pathway regulating PCa cell migration and invasion.
- miR-486-5p represents a promising therapeutic target for inhibiting prostate cancer progression and metastasis.
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