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Int. J. Mol. Sci. 2016, 17(5), 664; doi:10.3390/ijms17050664

Inhibition of REST Suppresses Proliferation and Migration in Glioblastoma Cells

Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory for Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang 110122, China
Pharmaceutical Preparation Section, Shenyang Children’s Hospital, Shenyang 110032, China
Department of General Practice, the First Affiliated Hospital of China Medical University, Shenyang 110015, China
Department of Pharmacy, the First Affiliated Hospital of China Medical University, Shenyang 110015, China
Science Experiment Center, China Medical University, Shenyang 110122, China
Authors to whom correspondence should be addressed.
Academic Editor: William Chi-shing Cho
Received: 16 March 2016 / Revised: 26 April 2016 / Accepted: 27 April 2016 / Published: 3 May 2016
(This article belongs to the Collection Advances in Molecular Oncology)
View Full-Text   |   Download PDF [6948 KB, uploaded 3 May 2016]   |  


Glioblastoma (GBM) is the most common primary brain tumor, with poor prognosis and a lack of effective therapeutic options. The aberrant expression of transcription factor REST (repressor element 1-silencing transcription factor) had been reported in different kinds of tumors. However, the function of REST and its mechanisms in GBM remain elusive. Here, REST expression was inhibited by siRNA silencing in U-87 and U-251 GBM cells. Then CCK-8 assay showed significantly decreased cell proliferation, and the inhibition of migration was verified by scratch wound healing assay and transwell assay. Using cell cycle analysis and Annexin V/PI straining assay, G1 phase cell cycle arrest was found to be a reason for the suppression of cell proliferation and migration upon REST silencing, while apoptosis was not affected by REST silencing. Further, the detection of REST-downstream genes involved in cytostasis and migration inhibition demonstrated that CCND1 and CCNE1 were reduced; CDK5R1, BBC3, EGR1, SLC25A4, PDCD7, MAPK11, MAPK12, FADD and DAXX were enhanced, among which BBC3 and DAXX were direct targets of REST, as verified by ChIP (chromatin immunoprecipitation) and Western blotting. These data suggested that REST is a master regulator that maintains GBM cells proliferation and migration, partly through regulating cell cycle by repressing downstream genes, which might represent a potential target for GBM therapy. View Full-Text
Keywords: glioblastoma; REST; NRSF; proliferation; migration glioblastoma; REST; NRSF; proliferation; migration

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhang, D.; Li, Y.; Wang, R.; Li, Y.; Shi, P.; Kan, Z.; Pang, X. Inhibition of REST Suppresses Proliferation and Migration in Glioblastoma Cells. Int. J. Mol. Sci. 2016, 17, 664.

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