KDM2B overexpression correlates with poor prognosis and regulates glioma cell growth
Authors Wang Y, Zang J, Zhang D, Sun Z, Qiu B, Wang X
Received 23 August 2017
Accepted for publication 28 November 2017
Published 8 January 2018 Volume 2018:11 Pages 201—209
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Akshita Wason
Peer reviewer comments 2
Editor who approved publication: Dr Samir Farghaly
Yiwei Wang,1 Jin Zang,1 Dongyong Zhang,2 Zhenxiang Sun,1 Bo Qiu,2 Xiaojie Wang1
1Department of Human Anatomy, Shenyang Medical College, Huanggu District, Shenyang City, 2Department of Neurosurgery, First Affiliated Hospital of China Medical University, Heping District, Shenyang City, Liaoning Province, China
Background: Gliomas are one of the most lethal cancers in the human central nervous system. Despite clinical treatment advancements, the prognosis of patients with glioma remains poor. KDM2B is a histone lysine demethylase, which has been observed in multiple tumors. But the concrete role of KDM2B in gliomas remains to be further illustrated.
Methods: The KDM2B expression in gliomas was detected with immunohistochemistry and Western blot assay. Furthermore, knockdown of KDM2B in U87 and U251 glioma cell lines, the proliferation capacity was evaluated by cell viability assay, colon formation assay and flow cytometry in vitro. Western blot assay was used to analyze the p21, EZH2 and cyclinD1 changes followed by knockdown of KDM2B.
Results: KDM2B was upregulated in tissues of glioma patients, and the expression was correlated to cancer progression. Downregulation of KDM2B in U87 and U251 glioma cell lines inhibited cell proliferation and arrested cell cycle in G0/G1 phase. In addition, silencing KDM2B promoted the upregulation of p21 while reduced the expression of EZH2 and cyclinD1.
Conclusion: Taken together, our results revealed that KDM2B might influence gliomas growth and act as a novel therapeutic target for glioma patients.
Keywords: EZH2, glioma, KDM2B, P21
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