Chen Gang, Sun Wenjie, Hua Xinying, Zeng Wei, Yang Lijing
Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, PR China.
Hubei Bio-Pharmaceutical Industrial Technological Institute Inc., No 666 Gaoxin Road, East Lake High-tech Development Zone, Wuhan 430075, PR China.
Gene. 2018 Mar 1;645:76-84. doi: 10.1016/j.gene.2017.12.026. Epub 2017 Dec 14.
Long non-coding RNAs (lncRNAs) have been wildly verified to modulate multiple tumorigenesis, especially nasopharyngeal carcinoma (NPC). In present study, we aim to investigate the role of lncRNA FOXD2-AS1 in the NPC carcinogenesis. It was indicated that FOXD2-AS1 was markedly increased in NPC tissues and cells in comparison to their corresponding controls. Moreover, the aberrant overexpression of FOXD2-AS1 indicated the poor prognosis of NPC patients. Silence of FOXD2-AS1 was able to repress NPC cell growth in vitro while overexpression of FOXD2-AS1 inversed this process. Moreover, in vivo tumor xenografts were established using CNE-1/SUNE-1 cells to investigate the function of FOXD2-AS1 in NSCLC tumorigenesis. Rescue assay was performed to further confirm that FOXD2-AS1 contributed to NPC progression by regulating miR-363-5p/S100A1 signal pathway. Taken together, our study discovered the oncogenic role of FOXD2-AS1 in clinical specimens and cellular experiments, showing the potential FOXD2-AS1/miR-363-5p/S100A1 pathway. This results and findings provide a novel insight for NPC tumorigenesis.
长链非编码RNA(lncRNAs)已被广泛证实可调节多种肿瘤的发生,尤其是鼻咽癌(NPC)。在本研究中,我们旨在探讨lncRNA FOXD2-AS1在鼻咽癌发生中的作用。结果表明,与相应对照相比,FOXD2-AS1在鼻咽癌组织和细胞中显著增加。此外,FOXD2-AS1的异常过表达表明鼻咽癌患者预后不良。沉默FOXD2-AS1能够在体外抑制鼻咽癌细胞的生长,而FOXD2-AS1的过表达则逆转了这一过程。此外,利用CNE-1/SUNE-1细胞建立体内肿瘤异种移植模型,以研究FOXD2-AS1在鼻咽癌发生中的作用。进行了挽救实验以进一步证实FOXD2-AS1通过调节miR-363-5p/S100A1信号通路促进鼻咽癌进展。综上所述,我们的研究在临床标本和细胞实验中发现了FOXD2-AS1的致癌作用,揭示了潜在的FOXD2-AS1/miR-363-5p/S100A1通路。这些结果和发现为鼻咽癌的发生提供了新的见解。