Long non-coding RNA AWPPH enhances malignant phenotypes in nasopharyngeal carcinoma via silencing PTEN through interacting with LSD1 and EZH2

被引:7
|
作者
Guo, Deqiang [1 ]
Liu, Fei [1 ]
Zhang, Lei [1 ]
Bian, Nana [1 ]
Liu, Luyang [1 ]
Kong, Lingxiao [1 ]
Hu, Qian [1 ]
Wang, Zengguang [1 ]
机构
[1] Peoples Liberat Army Hosp, 960 Yuan Dist,20 Zhanbei Rd, Zibo 255300, Shandong, Peoples R China
关键词
AWPPH; NPC; PTEN; LSD1; EZH2; MYC MESSENGER-RNA; POOR-PROGNOSIS; CELL-GROWTH; ROLES; PROLIFERATION; PROGRESSION;
D O I
10.1139/bcb-2019-0497
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Evidence has emerged identifying long noncoding RNAs (lncRNAs) as important regulators of various cancers including nasopharyngeal carcinoma (NPC). LncRNA AWPPH is an oncogene recently identified in several cancers. However, the underlying role of AWPPH in NPC is still unclear and thus worth exploring. In this study, AWPPH expression was markedly upregulated in NPC cells. Further, loss- and gain-of-function assays indicated that AWPPH facilitates cell proliferation and migration and hinders apoptosis in NPC cells. Moreover, cytoplasmic AWPPH was predicted to share a common RNA-binding protein, IGF2BP1, with LSD1. The interaction between IGF2BP1 and both AWPPH and LSD1 mRNA was verified in NPC cells, and AWPPH stabilized LSD1 mRNA to enhance the expression of LSD1 in NPC through such interactions. Furthermore, nuclear AWPPH repressed PTEN expression through recruiting EZH2 and LSD1 to the PTEN promoter in NPC cells. Final rescue assays demonstrated that silenced PTEN could reverse the suppressive influence of AWPPH depletion on the progression of NPC. Collectively, our study shows that AWPPH inhibits PTEN expression to drive NPC progression through interacting with LSD1 and EZH2, providing potential biomarkers for NPC treatment.
引用
收藏
页码:195 / 202
页数:8
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