机构:[1]Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004[2]Cyrus Tang Hematology Center, Soochow University, Suzhou, Jiangsu 215123, P.R. China
Gliomas are the most common primary central nervous system tumors and account for approximately 80% of malignant brain tumors. MicroRNAs (miRNAs) are a class of small non-coding, regulatory RNA molecules that mediate the expression levels of specific proteins. As a member of the miRNA family, miR-543 plays a tumor suppressive or an oncogenic role in different types of tumors. However, the expression and role of miR-543 in glioma remain unknown. In the present study, the expression level of miR-543 in glioma cell lines and tissues was investigated. A series of in vitro and in vivo experiments was then performed to elucidate the function of miR-543 in glioma. Moreover, proteomic profiling was applied in this study to determine the landscape of differentially expressed proteins associated with miR-543-mediated carcinogenesis in glioma. We found that the expression level of miR-543 was greatly downregulated in glioma cell lines and tissues. Furthermore, the expression level of miR-543 was negatively associated with high-grade glioma. Functional studies demonstrated that miR-543 in glioma cells induced apoptosis and inhibited growth, the cell cycle, migration and invasion. In addition, the in vivo study showed that miR-543 suppressed tumorigenicity of glioma cells. In the present study, a label free quantitative proteomic approach was performed and 339 proteins were identified as dysregulated after miR-543 was overexpressed. Among these dysregulated proteins, 165 were upregulated and 174 were downregulated. Moreover, multiple pathways were significantly enriched and were probably involved in miR-543-mediated tumorigenesis, including RNA degradation and the inositol phosphate metabolism pathway. In conclusion, miR-543 may function as a tumor suppressor in glioma and may serve as a future therapeutic target in therapy for patients with glioma.
基金:
The present study was supported by the Foundation Program
of Suzhou Science and Technology Project (SYSD2014092),
the Research and Innovation Project for College Graduates
of Jiangsu Province (KYLX_1263), and the Foundation of
Young Member of the Second Affiliated Hospital of Soochow
University (SDFEYQN1409).
第一作者机构:[1]Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004
通讯作者:
通讯机构:[*]Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Sanxiang Road 1055, Suzhou, Jiangsu 215004, P.R. China
推荐引用方式(GB/T 7714):
LIANG XU,JU YU,ZHONGYONG WANG,et al.miR-543 functions as a tumor suppressor in glioma in vitro and in vivo[J].ONCOLOGY REPORTS.2017,38(2):725-734.doi:10.3892/or.2017.5712.
APA:
LIANG XU,JU YU,ZHONGYONG WANG,QING ZHU,WENJIE WANG&QING LAN.(2017).miR-543 functions as a tumor suppressor in glioma in vitro and in vivo.ONCOLOGY REPORTS,38,(2)
MLA:
LIANG XU,et al."miR-543 functions as a tumor suppressor in glioma in vitro and in vivo".ONCOLOGY REPORTS 38..2(2017):725-734