Abstract
Background
MiRNAs belong to non-coding RNAs that are involved in cancer development. Acting as a mediator, they could regulate the expression level of numerous gens. However, the expression and function of miR-1299 in gastric cancer (GC) are not clear.
Objective
To explore the role of miR-1299 in the process of GC.
Methods
We detected the levels of miR-1299 in clinical samples of GC and investigated the role of miR-1299 in the regulation of the GC cells proliferation, apoptosis and metastasis. Luciferase reporter assay was employed to verify the target of miR-1299. Additionally, the proliferation, apoptosis and metastasis of AGS and SGC7901 cells were analyzed after the overexpression of miR-1299.
Results
Our study showed the expression of miR-1299 was decreased in GC tissues and cell lines. It indicated that the cell proliferation, migration and invasion was inhibited, while the cell apoptosis was promoted by the over-expressed miR-1299. Also, we found that miR-1299 could directly target the 3′-untranslated region (3′UTR) of ARF6 genes. In addition, rescue assay demonstrated that miR-1299 overexpression promoted the cell apoptosis and inhibited cell growth, which could be attenuated by the overexpression of ARF6.
Conclusions
These findings indicate that miR-1299 regulates cell progression in GC by targeting ARF6 genes, and suggest that miR-1299 may be a tumor suppressor in the GC progression.
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We wish to thank the editor, the associate editor, and the three anonymous reviewers for their helpful comments and suggestions, which have led to an improvement of this article.
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Yang Qiu, Yonggang Yuan and Ping Luo declare that they have no conflict of interest.
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This study had been approved by the Medical Ethics Committee of Jiangxi Cancer Hospital (No. 2020ky175). Informed consent was obtained from all individual participants included in the study.
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Qiu, Y., Yuan, Y. & Luo, P. MiR-1299 functions as a tumor suppressor to inhibit the proliferation and metastasis of gastric cancer by targeting ARF6. Genes Genom 44, 237–245 (2022). https://doi.org/10.1007/s13258-021-01124-w
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DOI: https://doi.org/10.1007/s13258-021-01124-w