Erschienen in:
01.05.2015 | Research Article
Knockdown of Aurora-B alters osteosarcoma cell malignant phenotype via decreasing phosphorylation of VCP and NF-κB signaling
verfasst von:
Jian Ying He, Wei Hong Xi, Liang Bo Zhu, Xin Hua Long, Xuan Yin Chen, Jia Min Liu, Qin Feng Luo, Xiao Ping Zhu, Zhi Li Liu
Erschienen in:
Tumor Biology
|
Ausgabe 5/2015
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Abstract
The aim of this study is to investigate the effects of inhibiting Aurora-B on osteosarcoma (OS) cell malignant phenotype, phosphorylation of valosin-containing protein (VCP), and the activity of NF-κB signaling in vitro. The expressions of Aurora-B and p-VCP proteins were detected by immunohistochemistry in 24 OS tissues, and the relationship between Aurora-B and p-VCP was investigated. The results showed that there was a positive correlation between Aurora-B and p-VCP proteins. The expression of Aurora-B in human OS cell lines U2-OS and HOS cells was inhibited by specific short hairpin RNA (shRNA) lentivirus (AURKB-shRNA lentivirus, Lv-shAURKB) which targeted Aurora-B. The results showed that the phosphorylation of VCP, the activity of NF-κB signaling pathway and the malignant phenotype of OS cells were all suppressed by knockdown of Aurora-B. It indicated that the inhibition of Aurora-B alters OS cells malignant phenotype by downregulating phosphorylation of VCP and activating of the NF-κB signaling pathway in vitro.