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Updated: Nov 1, 2025

Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
Published on: March 30, 2019
miR-1-3p/CELSR3 Participates in Regulating Malignant Phenotypes of Lung Adenocarcinoma Cells
Huiwen Miao1, Qingxin Zeng2, Shaohua Xu2
1Department of Thoracic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
Objective:
This study presents a discussion regarding the mechanism affecting the malignant progression of LUAD and the potential therapeutic targets, so as to provide more effective therapeutic strategies for LUAD patients.
Methods:
Expression data from TCGA-LUAD were extracted to identify target miRNA, with its downstream target mRNA predicted using bioinformatics analysis. Gene expression in transcript level and protein level were separately examined by qRT-PCR and western blot. Cell malignant phenotypes were assessed via MTT and Transwell assays. Luciferase reporter plasmids carrying target gene sequences were constructed to verify the targeting association between the target miRNA and its downstream mRNA.
Results:
miR-1-3p showed decreased expression in LUAD. Over-expressing miR-1-3p suppressed cancer cells to proliferate, migrate and invade. CELSR3, directly regulated by miR-1-3p, presented significantly elevated expression in LUAD and could foster LUAD cells to proliferate, migrate and invade. The rescue experiment identified that miR-1-3p-induced inhibition on LUAD cell malignant phenotypes could be reversed by over-expressing CELSR3.
Conclusion:
This study uncovered that miR-1-3p could suppress the malignant phenotypes of LUAD cells by targeting CELSR3, which will help to provide novel therapeutic strategies for LUAD sufferers and new references for the targeted therapy of LUAD.
Insights
This study reveals that miR-1-3p suppresses lung adenocarcinoma (LUAD) progression by targeting CELSR3. This finding offers new therapeutic strategies for LUAD patients.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Lung adenocarcinoma (LUAD) is a major cause of cancer-related mortality.
- Understanding the molecular mechanisms driving LUAD progression is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the role of miR-1-3p in LUAD.
- To identify potential therapeutic targets for LUAD treatment.
Main Methods:
- Bioinformatics analysis of TCGA-LUAD data.
- Quantitative real-time PCR (qRT-PCR) and Western blot for gene expression.
- MTT and Transwell assays for cell phenotypes.
- Luciferase reporter assays for miRNA-mRNA interaction verification.
Main Results:
- miR-1-3p expression was decreased in LUAD.
- Overexpression of miR-1-3p inhibited LUAD cell proliferation, migration, and invasion.
- CELSR3, a direct target of miR-1-3p, was upregulated in LUAD and promoted malignant phenotypes.
- CELSR3 overexpression reversed the inhibitory effects of miR-1-3p on LUAD cells.
Conclusions:
- miR-1-3p suppresses LUAD cell malignant phenotypes by targeting CELSR3.
- This miR-1-3p/CELSR3 axis presents a novel therapeutic strategy for LUAD.
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