Dataset Information

MiR-483-3p, Mediated by KLF9, Functions as Tumor Suppressor in Testicular Seminoma via Targeting MMP9.

ABSTRACT:

Background

Seminoma (SEM) is the most frequent testicular germ cell tumor with a high incidence in young men. The present study aims to explore the function and regulatory mechanism of miR-483-3p in SEM.

Methods

RT-qPCR was performed to investigate miR-483-3p levels in SEM tissues. The effect of miR-483-3p on TCam-2 cells was assessed by CCK-8, colony formation, cell migration, and invasion assays. Luciferase reporter assays were performed to investigate the interaction between miR-483-3p and MMP9, and then the recovery experiments were performed. Moreover, the potential upstream regulator of miR-483-3p was predicted based on JASPAR database.

Results

miR-483-3p was down-regulated in SEM tissues versus paracancerous normal tissues. The expression level of miR-483-3p was significantly associated with tumor stage by RT-qPCR. Functionally, miR-483-3p over-expression suppressed cell growth, migration, and invasion in SEM cell lines. Mechanically, miR-483-3p negatively regulated MMP9 by directly binding to its 3'-UTR. The over-expression of miR-483-3p could reverse the promoting role of MMP9 over-expression on the proliferation, migration, and invasion of TCam-2 cells. Moreover, KLF9 was identified as a potential upstream regulator of miR-483-3p and functions as a tumor suppressor.

Conclusions

In general, our study suggested that miR-483-3p could inhibit the cell growth, migration, and invasion of testicular SEM by targeting MMP9. Moreover, KLF9 is an upstream positive regulator of miR-483-3p and also functions as a tumor suppressor in SEM.

SUBMITTER: Zhang L

PROVIDER: S-EPMC7917253 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

miR-483-3p, Mediated by KLF9, Functions as Tumor Suppressor in Testicular Seminoma <i>via</i> Targeting MMP9.

Zhang Lei L Ruan Yashi Y Qin Zhiqiang Z Gao Xian X Xu Kai K Shi Xiaokai X Gao Shenglin S Liu Shouyong S Zhu Kai K Wang Wei W Zuo Li L Zhang Lifeng L Zhang Wei W

Frontiers in oncology 20210215

<h4>Background</h4>Seminoma (SEM) is the most frequent testicular germ cell tumor with a high incidence in young men. The present study aims to explore the function and regulatory mechanism of miR-483-3p in SEM.<h4>Methods</h4>RT-qPCR was performed to investigate miR-483-3p levels in SEM tissues. The effect of miR-483-3p on TCam-2 cells was assessed by CCK-8, colony formation, cell migration, and invasion assays. Luciferase reporter assays were performed to investigate the interaction between mi ...[more]

PMID: 33659208

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