Chen Xi, Huang Yaping, Shi Dianyu, Nie Chuan, Luo Yiping, Guo Liangfen, Zou Yu, Xie Chun
Department of Otorhinolaryngology, Guangdong Women and Children Hospital, Guang Zhou, Guangdong, 511400, People's Republic of China.
Department of Otorhinolaryngology, People's Hospital of Longhua,Guangdong,People's Republic of China.
Onco Targets Ther. 2020 May 20;13:4397-4409. doi: 10.2147/OTT.S245554. eCollection 2020.
Recently, long non-coding RNAs (lncRNAs) have been elucidated to play essential roles in cancers, and the recognition of lncRNA expression patterns in nasopharyngeal carcinoma (NPC) may be helpful for indicating novel mechanisms underlying NPC carcinogenesis. Herein, we conducted this study to probe into the function of lncRNA in NPC progression with the involvement of () and actin-binding LIM protein 1 ().
In silico analysis screened differentially expressed genes and miRNAs in NPC and predicted potential mechanisms. expression was detected in NPC tissues and cells. The gain-and-loss function assays were performed to explore the effects of lncRNA ZNF667-AS1 and in NPC cell biological behaviors. In vivo experiments were further conducted to confirm the in vitro results.
In silico analysis predicted that was diminished in NPC, which may downregulate through sponging . was poorly expressed in NPC tissues and cells, and overexpression of inhibited growth of NPC cells. competitively bound with , thereby upregulating . resulted in the promotion of NPC cell progression by suppressing . Overexpression of or suppression of inhibited tumorigenicity of NPC cells in vivo.
This study highlights that lncRNA promotes expression by sponging to suppress NPC cell progression.
最近,长链非编码RNA(lncRNAs)已被阐明在癌症中发挥重要作用,识别鼻咽癌(NPC)中的lncRNA表达模式可能有助于揭示NPC致癌的新机制。在此,我们进行了这项研究,以探讨lncRNA在NPC进展中的功能,涉及()和肌动蛋白结合LIM蛋白1()。
通过计算机分析筛选NPC中差异表达的基因和miRNA,并预测潜在机制。检测NPC组织和细胞中lncRNA ZNF667-AS1的表达。进行功能获得和缺失实验,以探讨lncRNA ZNF667-AS1和在NPC细胞生物学行为中的作用。进一步进行体内实验以证实体外结果。
计算机分析预测lncRNA ZNF667-AS1在NPC中减少,这可能通过海绵吸附miR-145-5p而下调SP1。lncRNA ZNF667-AS1在NPC组织和细胞中表达较低,过表达lncRNA ZNF667-AS1抑制NPC细胞生长。lncRNA ZNF667-AS1与miR-145-5p竞争性结合,从而上调SP1。lncRNA ZNF667-AS1通过抑制miR-145-5p促进NPC细胞进展。过表达miR-145-5p或抑制lncRNA ZNF667-AS1可抑制NPC细胞在体内的致瘤性。
本研究强调lncRNA ZNF667-AS1通过海绵吸附miR-145-5p促进SP1表达,从而抑制NPC细胞进展。