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Updated: May 3, 2026
MicroRNA Detection in Prostate Tumors by Quantitative Real-time PCR qPCR
Published on: May 16, 2012
MicroRNA-30c serves as an independent biochemical recurrence predictor and potential tumor suppressor for prostate
Xiao-hui Ling1, Zhao-dong Han, Dan Xia
1Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, 510180, China.
Abstract:
MicroRNA-30c (miR-30c) acts as a tumor suppressor or a tumor promoter in various human malignancies. However, the involvement of miR-30c in prostate cancer (PCa) is still unclear. The aim of this study was to investigate the molecular function and the clinical significance of miR-30c in PCa. Expression levels of miR-30c in PCa tissues and cells were detected by quantitative real-time-PCR (qRT-PCR). Additionally, the associations of miR-30c expression with clinicopathological features and prognosis in PCa patients were analyzed. The potential role of miR-30c in tumorigenesis of PCa cells was further evaluated by in vitro cell assays. MiR-30c was significantly down-regulated in PCa tissues and cells compared with the corresponding controls (P<0.05). In addition, the downregulation of miR-30c in PCa tissues was significantly associated with higher Gleason score (P=0.009), advanced pathological stage (P=0.016) and biochemical recurrence (P=0.034). Moreover, Kaplan-Meier survival analysis showed that the reduced expression of miR-30c was correlated with shorter biochemical recurrence-free survival (P=0.023). The multivariate analysis also identified miR-30c as an independent prognostic predictor for biochemical recurrence-free survival in patients with PCa. Furthermore, the enforced expression of miR-30c suppressed proliferation, migration and invasion of PCa cells in vitro. Our data indicated the involvement of miR-30c in PCa progression and suggested its potential role as an independent predictor of biochemical recurrence in PCa. On cellular level, miR-30c may function as a tumor suppressor for PCa cells by inhibiting tumor cell proliferation, migration and invasion.
Insights
MicroRNA-30c (miR-30c) is downregulated in prostate cancer (PCa), correlating with advanced disease and poor prognosis. Restoring miR-30c suppresses PCa cell growth, migration, and invasion, indicating its tumor-suppressive role.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- MicroRNA-30c (miR-30c) has a dual role in human cancers.
- Its function in prostate cancer (PCa) remains largely undetermined.
- Understanding miR-30c's role is crucial for PCa diagnosis and treatment.
Purpose of the Study:
- To investigate the clinical significance and molecular function of miR-30c in PCa.
- To determine if miR-30c expression levels correlate with PCa progression and patient prognosis.
Main Methods:
- Quantitative real-time PCR (qRT-PCR) to measure miR-30c expression in PCa tissues and cells.
- Statistical analysis to correlate miR-30c levels with clinicopathological features and survival.
- In vitro cell assays to assess the functional impact of miR-30c on PCa cell behavior.
Main Results:
- miR-30c was significantly downregulated in PCa tissues and cells.
- Lower miR-30c expression correlated with higher Gleason score, advanced stage, and biochemical recurrence.
- Reduced miR-30c predicted shorter recurrence-free survival and was an independent prognostic factor.
- Enforced miR-30c expression inhibited PCa cell proliferation, migration, and invasion.
Conclusions:
- miR-30c functions as a tumor suppressor in prostate cancer.
- Downregulation of miR-30c is linked to PCa progression and recurrence.
- miR-30c holds potential as a prognostic biomarker for PCa patients.
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