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Updated: Nov 27, 2025

Genome-wide Screen for miRNA Targets Using the MISSION Target ID Library
Published on: April 6, 2012
microRNA-214 Prevents Traits of Cutaneous Squamous Cell Carcinoma via VEGFA and Bcl-2
Xianpeng Ma1, Di Wu2, Xiaodong Zhang1
1Department of Dermatology and STD, Affiliated Hospital of Beihua University, Jilin, People's Republic of China.
Background:
Dysregulation of microRNA-214 (miR-214) has been indicated in different tumors. The function of miR-214 in cutaneous squamous cell carcinoma (CSCC) is yet to be deciphered. The current study aimed to investigate the specific mechanism underpinning CSCC development with the involvement of miR-214 and its putative targets.
Methods:
Microarray analysis of CSCC and adjacent tissues was carried out to filter the most significant downregulated miRNA. Survival analysis of patients was subsequently implemented, followed by miRNA expression determination in CSCC cells. Gain-of-function assays were performed to evaluate its function on cellular level. The targets of the determined miRNA were predicted and their expression in CSCC and adjacent tissues was evaluated. The targeting relationship was analyzed by dual-luciferase assays. Finally, rescue experiments were conducted.
Results:
miR-214 was reduced in CSCC tissues and cells, and the survival of patients harboring overexpression of miR-214 was higher. miR-214 restoration increased CSCC cell apoptosis, while decreased proliferative, invasive and migratory activities. miR-214 interacted with vascular endothelial growth factor A (VEGFA) and B-cell CLL/lymphoma 2 (Bcl-2). VEGFA and Bcl-2, overexpressed in CSCC tissues and cells, were negatively correlated with miR-214. Moreover, VEGFA and Bcl-2 overexpression reversed the anti-tumor phenotypes of miR-214 on CSCC cells. miR-214 disrupted the Wnt/β-catenin pathway through VEGFA and Bcl-2 in the CSCC cells.
Conclusion:
Our data demonstrates that miR-214 exerts a suppressing role in CSCC. The discovery of novel targets such as miR-214 and VEGFA/Bcl-2 may facilitate the development of therapeutic options.
Insights
MicroRNA-214 (miR-214) suppresses cutaneous squamous cell carcinoma (CSCC) by inhibiting proliferation and invasion. Restoring miR-214 may offer new therapeutic strategies for CSCC by targeting VEGFA and Bcl-2.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- MicroRNA-214 (miR-214) dysregulation is implicated in various cancers.
- The specific role of miR-214 in cutaneous squamous cell carcinoma (CSCC) remains unclear.
- This study investigates the mechanism of miR-214 in CSCC development and identifies its targets.
Purpose of the Study:
- To elucidate the function of miR-214 in CSCC.
- To identify and validate the targets of miR-214 in CSCC.
- To explore the therapeutic potential of targeting miR-214 in CSCC.
Main Methods:
- Microarray analysis to identify downregulated miRNAs in CSCC.
- Survival analysis and miRNA expression profiling in CSCC tissues and cells.
- Gain-of-function assays, dual-luciferase reporter assays, and rescue experiments to determine target interactions and functional effects.
Main Results:
- miR-214 was significantly downregulated in CSCC tissues and cells, correlating with poorer patient survival.
- Restoration of miR-214 suppressed CSCC cell proliferation, invasion, and migration while promoting apoptosis.
- miR-214 directly targets VEGFA and Bcl-2, which are overexpressed in CSCC and can reverse miR-214's anti-tumor effects.
Conclusions:
- miR-214 acts as a tumor suppressor in CSCC.
- Targeting miR-214, VEGFA, and Bcl-2 presents a potential therapeutic strategy for CSCC.
- Understanding the miR-214/VEGFA/Bcl-2 axis offers insights into CSCC pathogenesis and treatment.
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