Chen Xiaohua, Zhang Zhuxiang, Ma Yan, Su Hongxin, Xie Peng, Ran Juntao
Department Of Radiation Therapy, First Hospital Of Lanzhou University, Lanzhou City, Gansu Province 730000, People's Republic of China.
Cancer Manag Res. 2020 May 26;12:3971-3979. doi: 10.2147/CMAR.S237285. eCollection 2020.
It has been proved that lncRNAs could function as CeRNA for miRNAs in tumor growth and metastasis for cervical cancer. This paper aims to identify the role of LINC02381 in cervical cancer cells.
RT-qPCR was utilized to measure the expression levels of LINC02381 in cervical cancer tissues and cells. MTT, colony formation assay, transwell assay, RT-qPCR, and Western blotting were performed to investigate the roles of LINC02381 in cervical cancer cells. RegRNA 2.0 was used to predict the miRNA-binding sites of LINC02381. Luciferase reporter assay and RT-qPCR were employed to confirm the sponging effect between miR-133b and LINC02381.
This study showed that LINC02381 was up-regulated in cervical cancer cells and acted as an oncogene in the development of cervical cancer. LINC02381 promoted cell viability and metastasis via sponging miR-133b. Moreover, miR-133b could target its downstream mediator of RhoA and inhibit its expression.
Overall, our results indicated that LINC02381 functions as an oncogene in cervical cancer and could serve as a novel target for cervical cancer therapies in the future.
已有研究证明,在宫颈癌的肿瘤生长和转移过程中,长链非编码RNA(lncRNAs)可作为微小RNA(miRNAs)的竞争性内源性RNA(CeRNA)发挥作用。本文旨在确定LINC02381在宫颈癌细胞中的作用。
采用逆转录定量聚合酶链反应(RT-qPCR)检测LINC02381在宫颈癌组织和细胞中的表达水平。通过MTT法、集落形成实验、Transwell实验、RT-qPCR和蛋白质免疫印迹法研究LINC02381在宫颈癌细胞中的作用。使用RegRNA 2.0预测LINC02381的miRNA结合位点。采用荧光素酶报告基因实验和RT-qPCR验证miR-133b与LINC02381之间的海绵效应。
本研究表明,LINC02381在宫颈癌细胞中上调,并在宫颈癌发生发展过程中作为癌基因发挥作用。LINC02381通过海绵吸附miR-133b促进细胞活力和转移。此外,miR-133b可靶向其下游介质RhoA并抑制其表达。
总体而言,我们的结果表明LINC02381在宫颈癌中作为癌基因发挥作用,未来可能成为宫颈癌治疗的新靶点。