Liang Xuan, Men Qun-Li, Li Yong-Wei, Li He-Cheng, Chong Tie, Li Zhao-Lun
Department of Oncology, The First Affiliated Hospital, Xian Jiaotong University Medical CollegeXian, ShaanxiP.R. China.
Department of Urology, The Central Hospital of BaojiBaoji, ShaanxiP.R. China.
Oncol Res. 2017 Jan 2;25(1):99-105. doi: 10.3727/096504016X14719078133609.
Armadillo repeat-containing protein 8 (ARMc8) is a key factor in regulating cell migration, proliferation, tissue maintenance, and tumorigenesis. However, its role in bladder cancer remains unknown. Thus, in this study we sought to investigate the effect of ARMc8 on the epithelial-to-mesenchymal transition (EMT) progress in bladder cancer cells induced by transforming growth factor-β1 (TGF-β1). Our results found that ARMc8 was highly expressed in bladder cancer cell lines. ARMc8 silencing inhibited the TGF-β1-induced migration and invasion and suppressed the EMT progress in bladder cancer cells. Furthermore, ARMc8 silencing inhibited the TGF-β1-induced expression of β-catenin, cyclin D1, and c-myc in bladder cancer cells. In conclusion, the present study demonstrates a novel function for ARMc8, which acts as a mediator for TGF-β1-induced cell migration/invasion through modulation of the Wnt/β-catenin signaling pathway in bladder cancer cells. This study suggests that ARMc8 may be a potential therapeutic target for the development of therapies for bladder cancer.
含犰狳重复序列蛋白8(ARMc8)是调节细胞迁移、增殖、组织维持和肿瘤发生的关键因子。然而,其在膀胱癌中的作用尚不清楚。因此,在本研究中,我们试图探讨ARMc8对转化生长因子-β1(TGF-β1)诱导的膀胱癌细胞上皮-间质转化(EMT)进程的影响。我们的结果发现,ARMc8在膀胱癌细胞系中高表达。ARMc8沉默抑制了TGF-β1诱导的迁移和侵袭,并抑制了膀胱癌细胞的EMT进程。此外,ARMc8沉默抑制了TGF-β1诱导的膀胱癌细胞中β-连环蛋白、细胞周期蛋白D1和c-myc的表达。总之,本研究证明了ARMc8的一种新功能,它通过调节膀胱癌细胞中的Wnt/β-连环蛋白信号通路,作为TGF-β1诱导的细胞迁移/侵袭的介质。本研究表明,ARMc8可能是膀胱癌治疗开发的潜在治疗靶点。