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Updated: Feb 6, 2026

Modeling Oral-Esophageal Squamous Cell Carcinoma in 3D Organoids
Published on: December 23, 2022
microRNA-1297 involves in the progression of oral squamous cell carcinoma through PTEN
Limin Liang1, Lin Feng1, Bo Wei1
1General Hospital of the People's Liberation Army of China, Beijing 100000, PR China.
Background:
Oral squamous cell carcinoma (OSCC) oncogenic mechanisms still remain elusive. Herein, we proposed to understand the biological role of a newly discovered OSCC miRNA.
Methods:
MiR-1297 related to OSCC was selected for this study. TaqMan qRT- PCR assay was used to profile miRNA and gene expression in 16 tumors with matched adjacent non-tumor tissues. CCK-8 assay and colony formation assay were used to demonstrate cell proliferation. Protein level was determined by western blotting. SPSS was used for statistical analyses.
Results:
MiR-1297 is repressed and PTEN activated in OSCC. Moreover, the miR-1297 overexpressing cell lines displayed a decrease in cell growth rate. And, suppression of miR-1297 reversed the cell growth rate. In addition, PTEN silencing display the similar pattern as miRNA-1297 overexpression to enhance OSCC cell growth.
Conclusions:
MiRNA and gene expression changes are common event in OSCC. Our results suggest miR-1297 may drive tumor progression through PTEN. And, miR-1297 could be a promising candidate for future investigation.
Insights
MicroRNA-1297 (miRNA-1297) is repressed in oral squamous cell carcinoma (OSCC), inhibiting tumor growth by targeting PTEN. This suggests miRNA-1297 as a potential therapeutic target for OSCC.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Oral squamous cell carcinoma (OSCC) pathogenesis remains unclear.
- Investigating the role of novel microRNAs (miRNAs) in OSCC development is crucial.
Purpose of the Study:
- To elucidate the biological function of a newly identified miRNA in OSCC.
- To explore the relationship between miR-1297 and OSCC progression.
Main Methods:
- Quantitative real-time PCR (qRT-PCR) for miRNA and gene expression profiling.
- Cell proliferation assays (CCK-8, colony formation) and Western blotting for protein analysis.
- Statistical analysis using SPSS.
Main Results:
- MiR-1297 was found to be downregulated in OSCC tissues.
- Overexpression of miR-1297 suppressed OSCC cell proliferation, while its suppression promoted it.
- PTEN silencing mimicked the effect of miR-1297 overexpression on OSCC cell growth, indicating PTEN activation in OSCC.
Conclusions:
- MiRNA and gene expression alterations are frequent in OSCC.
- MiR-1297 may promote OSCC tumor progression via PTEN regulation.
- MiR-1297 presents a potential therapeutic target for OSCC.
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