miRNA-21 promotes renal carcinoma cell invasion in a microfluidic device

miRNA-21 promotes renal carcinoma cell invasion in a microfluidic device
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miRNA-21 在微流体装置中促进肾癌细胞侵袭

DOI:
10.1039/c7ra01768e
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发表时间:
2017-09
期刊:
影响因子:
3.9
通讯作者:
Li Xiancheng
Li Xiancheng
中科院分区:
化学3区
文献类型:
--
作者:
Wang Xiaogang;Jin Yiying;Wang Wei;Yu Na;Xiao Xue;Liu Tingjiao;Li Xiancheng

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microRNA(miR)在肿瘤侵袭中起重要作用。在这项研究中,我们研究了miR-21在肾细胞癌侵袭中的作用。在微流控模型中评估肾癌细胞系(786-O、Caki-1、A498)、一种正常肾上皮细胞系(HK-2)和原代肾癌细胞的侵袭能力。通过定量真实的时间PCR(qRT-PCR)检测miR-21的表达。我们发现miR-21低表达的HK-2细胞具有低侵袭能力,而miR-21高表达的肾癌细胞株具有高侵袭能力。原代肾癌细胞的侵袭能力高于HK-2细胞,这与miR-21的表达水平一致。miR-21敲低降低肾癌细胞系和原发性癌细胞的侵袭。总之,这项研究表明,miR-21在细胞系和原代癌细胞中促进肾癌细胞的侵袭,并表明miR-21可能是肾癌治疗的新靶点。此外,我们证明了微流体装置提供了一个有用的体外平台来研究癌细胞的侵袭。
MicroRNAs (miR) play important roles in cancer invasion. In this study, we investigated the role of miR-21 in the invasion of renal cell carcinoma. The invasive abilities of renal carcinoma cell lines (786-O, Caki-1, A498), one normal epithelial kidney cell line (HK-2) and primary renal carcinoma cells were assessed in a microfluidic model. The expression of miR-21 was examined by quantitative real time PCR (qRT-PCR). We found that HK-2 cells with low miR-21 expression showed low invasive ability while renal carcinoma cell lines with high miR-21 expression showed high invasive ability. Primary renal cancer cells showed higher invasive ability than HK-2 cells, and this was consistent with the level of miR-21 expression. miR-21 knockdown reduced both renal carcinoma cell line and primary cancer cell invasion. Overall, this study shows that miR-21 promotes renal cancer cell invasion in both cell lines and primary cancer cells and suggests that miR-21 might be a new target in renal cancer therapy. In addition, we demonstrate that a microfluidic device provides a useful in vitro platform to study cancer cell invasion.
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影响因子: --
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