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MiR-193a-3p inhibits pancreatic ductal adenocarcinoma cell proliferation by targeting CCND1
Zhi-Min Chen1, Qiao Yu1, Gang Chen1
1Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
Abstract:
Background: MicroRNAs (miRNAs) could modulate gene expression at the posttranscriptional level by promoting mRNA degradation or blocking mRNA translation, thus affecting the occurrence and development of cancer. Methods: In this work, qRT-PCR was conducted to detect the expression of miR-193a-3p and CCND1. The ability of cell proliferation was evaluated via CCK-8 assay. Cell apoptosis and cell cycle distribution were detected by flow cytometry. Bioinformatic techniques were employed to research the regulatory relationship between miR-193a-3p and target genes. The relationship between miR-193a-3p and CCND1 was verified via dual-luciferase reporter assays. Results: MiR-193a-3p expression in pancreatic ductal adenocarcinoma (PDAC) tissue was significantly lower than in non-cancerous tissue. After overexpressing miR-193a-3p in PDAC cells, their multiplication ability was significantly inhibited, apoptosis was accelerated, and the cell cycle was blocked in the G1 and G2/M phases. CCND1 was confirmed to have a targeted relationship with miR-193a-3p. Moreover, CCND1 expression was significantly lower in PDAC cells with an overexpression of miR-193a-3p. Conclusions: MiR-193a-3p targeted CCND1 to suppress tumor growth in PDAC cells. MiR-193a-3p may function as a tumor inhibitor in PDAC development, which could offer a promising therapeutic and prognostic strategy for PDAC treatment.
Insights
MicroRNA-193a-3p targets CCND1 to inhibit pancreatic ductal adenocarcinoma (PDAC) growth. This microRNA may serve as a tumor suppressor, offering a potential therapeutic strategy for PDAC.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- MicroRNAs (miRNAs) regulate gene expression posttranscriptionally, influencing cancer development.
- Dysregulation of miRNAs is implicated in various oncogenic processes.
Purpose of the Study:
- To investigate the role of miR-193a-3p in pancreatic ductal adenocarcinoma (PDAC).
- To elucidate the regulatory relationship between miR-193a-3p and its target gene CCND1 in PDAC.
Main Methods:
- Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) for gene expression analysis.
- Cell proliferation, apoptosis, and cell cycle assays (CCK-8, flow cytometry).
- Bioinformatic analysis and dual-luciferase reporter assays to confirm target gene interaction.
Main Results:
- miR-193a-3p expression was significantly reduced in PDAC tissues compared to non-cancerous tissues.
- Overexpression of miR-193a-3p inhibited PDAC cell proliferation, induced apoptosis, and caused cell cycle arrest.
- CCND1 was identified as a direct target of miR-193a-3p, with its expression downregulated upon miR-193a-3p upregulation.
Conclusions:
- miR-193a-3p suppresses tumor growth in PDAC by targeting CCND1.
- miR-193a-3p acts as a tumor inhibitor in PDAC, suggesting its potential as a therapeutic and prognostic marker.
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