Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Beijing 100853, China.
Department of Medical Laboratory, Chinese PLA General Hospital, Beijing 100853, China.
Exp Mol Pathol. 2019 Dec;111:104322. doi: 10.1016/j.yexmp.2019.104322. Epub 2019 Oct 23.
Abnormal expression of long non-coding RNAs (lncRNAs) has been demonstrated to be a vital regulatory factor in a large number of malignancies. The investigation in cervical cancer and the associated modulation mechanisms are yet to be probed. The aim of this study is to specifically investigate the expression pattern and modulatory mechanism of MIR205HG in cervical cancer. Our paper firstly revealed the up-regulation of KRT17 in cervical cancer. Function assays further displayed that KRT17 silencing impaired the proliferation and migration, and activated the apoptosis of cervical cancer cells. Based on the finding that MIR205HG could regulate KRT17 expression, we further probed the detailed mechanism between MIR205HG and KRT17. It was observed from mechanism experiments that MIR205HG depleted SRSF1 to increase KRT17 expression. The whole mechanism of MIR205HG/SRSF1/KRT17 axis affecting cell proliferation, apoptosis and migration in cervical cancer was validated using rescue assays. In conclusion, MIR205HG modulated the biological activities of cervical cancer cells via targeting SRSF1 and regulating KRT17, which better understood the pathogenesis of cervical carcinoma and excavated a novel therapeutic target.
长非编码 RNA(lncRNA)的异常表达已被证明是许多恶性肿瘤中重要的调节因子。对宫颈癌及其相关调节机制的研究仍有待探索。本研究旨在专门研究 MIR205HG 在宫颈癌中的表达模式和调节机制。
我们的论文首先揭示了 KRT17 在宫颈癌中的上调。功能分析进一步显示,KRT17 沉默可损害宫颈癌细胞的增殖和迁移,并激活其凋亡。基于 MIR205HG 可以调节 KRT17 表达的发现,我们进一步探究了 MIR205HG 和 KRT17 之间的详细机制。
机制实验表明,MIR205HG 通过耗尽 SRSF1 来增加 KRT17 的表达。通过挽救实验验证了 MIR205HG/SRSF1/KRT17 轴影响宫颈癌细胞增殖、凋亡和迁移的整个机制。
总之,MIR205HG 通过靶向 SRSF1 调节 KRT17,从而调节宫颈癌细胞的生物学活性,这更好地理解了宫颈癌的发病机制,并挖掘了一个新的治疗靶点。
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