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Updated: Jan 4, 2026
MicroRNA Detection in Prostate Tumors by Quantitative Real-time PCR qPCR
Published on: May 16, 2012
miR-4286 promotes prostate cancer progression by targeting the expression of SALL1
Zhanqi Li1, Shaoxiong Zhao1, Hui Wang1
1Department of Urology, Shaanxi Nuclear Industry 215 Hospital, Xianyang, China.
Background:
Prostate cancer (PCa) is a serious health threat for humans worldwide. Recent studies have revealed that microRNAs are associated with the progression of human cancers, including PCa. However, no study has been performed aiming to investigate the role of microNA-4286 (miR-4286) on PCa.
Methods:
A quantitative reverse transcriptase-polymerase chain reaction was conducted to analyze the expression level of miR-4286 in PCa cells. The connection of miR-4286 and spalt like transcription factor 1 (SALL1) was analyzed with a bioinformatic analysis tool, a dual-luciferase activity reporter assay and western blotting. The effects of miR-4286 and SALL1 on PCa cell behaviors were examined in vitro.
Results:
We showed miR-4286 expression was significantly increased in PCa cells compared to a normal cell line. Knockdown of miR-4286 could inhibit PCa cell proliferation but promote cell apoptosis by targeting SALL1.
Conclusions:
The results of the present study suggest that miR-4286 overexpression represents a tumor promoter role in PCa.
Insights
MicroRNA-4286 (miR-4286) is overexpressed in prostate cancer (PCa), promoting tumor growth. Inhibiting miR-4286 suppressed PCa cell proliferation and increased apoptosis by targeting SALL1.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Prostate cancer (PCa) poses a significant global health challenge.
- MicroRNAs (miRNAs) are increasingly recognized for their role in cancer progression.
- The specific role of microRNA-4286 (miR-4286) in PCa remains unexplored.
Purpose of the Study:
- To investigate the expression levels of miR-4286 in prostate cancer cells.
- To elucidate the functional role of miR-4286 in PCa progression.
- To identify potential targets of miR-4286 in PCa.
Main Methods:
- Quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) for miR-4286 expression analysis.
- Bioinformatic analysis, dual-luciferase reporter assays, and western blotting to assess the miR-4286/SALL1 interaction.
- In vitro assays to evaluate the impact of miR-4286 and SALL1 on PCa cell behavior.
Main Results:
- miR-4286 expression was significantly upregulated in PCa cells compared to normal cells.
- Downregulation of miR-4286 inhibited PCa cell proliferation.
- Knockdown of miR-4286 promoted PCa cell apoptosis, mediated through targeting spalt like transcription factor 1 (SALL1).
Conclusions:
- miR-4286 acts as a tumor promoter in prostate cancer.
- Overexpression of miR-4286 contributes to PCa development and progression.
- Targeting miR-4286 may represent a potential therapeutic strategy for PCa.
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