MicroRNA-294 promotes cellular proliferation and motility through the PI3K/AKT and JAK/STAT pathways by upregulation of NRAS in bladder cancer
- Авторы: Li Y.1, Shan Z.1, Liu C.1, Yang D.1, Wu J.1, Men C.1, Xu Y.1
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Учреждения:
- Department of Urology
- Выпуск: Том 82, № 4 (2017)
- Страницы: 474-482
- Раздел: Article
- URL: https://journals.rcsi.science/0006-2979/article/view/151344
- DOI: https://doi.org/10.1134/S0006297917040095
- ID: 151344
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Аннотация
In our study we examined the role of microRNA-294 (miR-294) in bladder cancer and related mechanisms. Realtime polymerase chain reaction (RT-PCR) was performed to determine the expression level of miR-294. Western blot was used to determine the expression of NRAS, mainly factors in the PI3K/AKT and JAK/STAT pathways. Cell counting kit8 assay, clonogenic assay, wound-healing assay, transwell and flow cytometry were used to explore, respectively, cell proliferation, survival, migration, invasion, and apoptosis of bladder cancer cell line T24. The expressions of miR-294 in bladder cancer cells including J82, HT1376, T24, and SW780 were significantly increased compared to those in human bladder epithelium cells (both HCV29 and SV-HUC-1). The proliferation rate, surviving fraction, migration, and invasion of T24 cells in miR-294 mimetic transfected group were significantly increased, while they were significantly decreased by miR294 inhibitor transfection. Moreover, miR-294 suppression could increase the apoptotic rate of T24 cells. In addition, drug resistance of T24 cells to cisplatin was increased in miR-294 mimetic-treated group, while it was decreased by miR-294 inhibitor compared to empty control. Overexpression of miR-294 could upregulate NRAS expression in T24 cells and activate PI3K/AKT and JAK/STAT pathways. We found that miR-294 expression was positively related with proliferation and motility of T24 cells. Moreover, miR-294 suppression could promote the sensitivity of T24 cells to cisplatin. We also found miR-294 could upregulate NRAS and activate the PI3K/AKT and JAK/STAT pathways in T24 cells.
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Yongwei Li
Department of Urology
Email: jtwu1006@163.com
Китай, Yantai, 264000
Zhengfei Shan
Department of Urology
Email: jtwu1006@163.com
Китай, Yantai, 264000
Chu Liu
Department of Urology
Email: jtwu1006@163.com
Китай, Yantai, 264000
Diandong Yang
Department of Urology
Email: jtwu1006@163.com
Китай, Yantai, 264000
Jitao Wu
Department of Urology
Автор, ответственный за переписку.
Email: jtwu1006@163.com
Китай, Yantai, 264000
Changping Men
Department of Urology
Email: jtwu1006@163.com
Китай, Yantai, 264000
Yankai Xu
Department of Urology
Email: jtwu1006@163.com
Китай, Yantai, 264100