Abstract
Background/aim
MicroRNAs play crucial roles in controlling cellular biological processes. miR-143 expression is usually downregulated in different cancers. In this study, we focused on exploring the role of miR143 in NSCLC development.
Methods
Bioinformatics analyses were used to detect the expression level of miR-143 in lung tumors. The cells were transfected by pCMV-miR-143 vectors. The efficacy of transfection was verified by Flow cytometry. The influence of miR-143 replacement on NSCLC cells migration, proliferation, and apoptosis was detected using wound-healing assay, MTT assay, and DAPI staining, respectively.
Results
MTT assay revealed that overexpression of miR143 inhibited cell growth and proliferation. Scratch assay results demonstrated that restoration of miR143 suppressed cell migration. The qRT-PCR assay was further used to detect the assumed relationship between miR143 and apoptotic and metastatic-related genes.
Conclusion
The findings showed that miR-143 could reduce cell proliferation, invasion, and migration by reducing CXCR4, Vimentin, MMP-1, Snail-1, C-myc expression level, and increasing E-cadherin expression levels in lung cancer cells and might be a potential target in NSCLC’s targeted therapy.
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Data availability statement
The data that support the findings of this study are available from the corresponding author upon reasonable request. Some data may not be made available because of privacy or ethical restrictions.
Abbreviations
- LC:
-
Lung cancer.
- SCLC:
-
Small cell lung carcinoma.
- NSCLC:
-
Non-small cell lung cancer.
- miRNAs:
-
MicroRNAs.
- miR-143:
-
microRNA-143.
- TCGA:
-
The Cancer Genome Atlas.
- G418:
-
Geneticin.
- FACS:
-
Fluorescence-activated cell sorting.
- DAPI:
-
2-(4-amidinophenyl)-6-indolecarbamidine dihydrochloride.
- M-MuLV RT:
-
Moloney murine leukemia virus.
- SD:
-
Standard deviation.
- NC:
-
Negative control.
- TS miRNA:
-
Tumor suppressor miRNA.
- OSCC:
-
Oral squamous cell carcinoma cells
- EMT:
-
Epithelial-mesenchymal transition
- MMP-1:
-
Matrix metalloproteinase 1
- MMPs:
-
Matrix metalloproteinase
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Acknowledgements
The current study was performed with the financial assistance of Tabriz University of Medical Science, Tabriz, Iran (grant number 60131).
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Vahid Asghariazar wrote the original paper and carried out the experiments, Behzad Mansoori and Mahtab Kadkhodayi contributed to data collection; Elham Safarzadeh and Ali Mohammadi provided advice and consultation; Behzad Baradaran and Ebrahim Sakhinia contributed to the final revision of the manuscript, analyzed the statistical data and verified the accuracy of the tests. All authors read and approved the final version of the manuscript.
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Asghariazar, V., Mansoori, B., Kadkhodayi, M. et al. MicroRNA-143 act as a tumor suppressor microRNA in human lung cancer cells by inhibiting cell proliferation, invasion, and migration. Mol Biol Rep 49, 7637–7647 (2022). https://doi.org/10.1007/s11033-022-07580-1
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DOI: https://doi.org/10.1007/s11033-022-07580-1