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MicroRNA-494-3p Promotes Cell Growth, Migration, and Invasion of Nasopharyngeal Carcinoma by Targeting Sox7
| Content Provider | SAGE Publishing |
|---|---|
| Author | He, Huiping Liao, Xianghui Yang, Qingmei Liu, Yuan Peng, Yan Zhong, Hongzhen Yang, Jun Zhang, Huiqing Yu, Zhonghua Zuo, Yufang Guan, Chengnong Xu, Zumin |
| Copyright Year | 2018 |
| Abstract | There is mounting evidence that microRNAs play an important role in nasopharyngeal carcinoma, which is widely prevalent in South China and is the most prevalent metastatic cancer among head and neck cancers. Recently, it has been shown that miR-494 is involved in the progression and prognosis of nasopharyngeal carcinoma. However, little is known about the function and mechanism of miR-494-3p in nasopharyngeal carcinoma. In the present study, we aimed to investigate the effects of miR-494-3p on the migration and invasion of nasopharyngeal carcinoma and to further explore the underlying mechanisms of these processes.Methods:The expression levels of miR-494-3p and Sox7 in nasopharyngeal carcinoma specimens and nasopharyngeal carcinoma cell lines were measured using quantitative reverse transcription polymerase chain reaction. Luciferase reporter assay, quantitative reverse transcription polymerase chain reaction, and Western blotting were used to confirm whether Sox7 was a direct target of miR-494-3p. Additionally, the roles of miR-494-3p and Sox7 on cell proliferation, migration, and invasion of nasopharyngeal carcinoma were analyzed by Cell Counting Kit-8 (CCK-8) assay, wound healing assay, and Boyden chamber assay, respectively.Results:Our study demonstrated that miR-494-3p was commonly upregulated in nasopharyngeal carcinoma specimens and nasopharyngeal carcinoma cell lines compared with nontumor nasopharyngeal epithelial tissue or nasopharyngeal cells (NP69). Moreover, miR-494-3p negatively regulated Sox7 at the posttranscriptional level by binding to a specific site in the Sox7 3′-untranslated region. In addition, synthetic miR-494-3p mimics significantly promoted proliferation, migration, and invasion of S18 and S26 nasopharyngeal carcinoma cells, while a synthetic miR-494-3p inhibitor resulted in suppressed nasopharyngeal carcinoma cell migration and invasion.Conclusion:miR-494-3p promotes nasopharyngeal carcinoma cell growth, migration, and invasion by directly targeting Sox7. Our results suggest that miR-494-3p might be a potential therapeutic target for nasopharyngeal carcinoma. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/1533033818809993?download=true |
| ISSN | 15330346 |
| Volume Number | 17 |
| Journal | Technology in Cancer Research & Treatment (TCT) |
| e-ISSN | 15330338 |
| DOI | 10.1177/1533033818809993 |
| Language | English |
| Publisher | Sage Publications CA |
| Publisher Date | 2018-10-31 |
| Publisher Place | Los Angeles |
| Access Restriction | Open |
| Rights Holder | © The Author(s) 2018 |
| Subject Keyword | Sox7 nasopharyngeal carcinoma migration invasion miR-494-3p |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cancer Research Oncology |
