基础医学与临床 ›› 2016, Vol. 36 ›› Issue (1): 94-98.

• 研究论文 • 上一篇    下一篇

长链非编码RNA HOTAIR在宫颈癌患者组织及HeLa细胞中的表达和影响

郑婷华,王茜,杨小杰,韩炜,周钰昆,郑韦   

  1. 唐山市妇幼保健院
  • 收稿日期:2015-06-23 修回日期:2015-09-28 出版日期:2016-01-05 发布日期:2015-12-29
  • 通讯作者: 郑婷华 E-mail:tg197908@163.com

The expression and effect of long non-coding RNA HOTAIR in cervical cancer patients and HeLa cells

  • Received:2015-06-23 Revised:2015-09-28 Online:2016-01-05 Published:2015-12-29

摘要: 目的 探讨长链非编码RNA HOTAIR在宫颈癌患者组织中的表达及对宫颈癌细胞系HeLa细胞增殖和凋亡的影响。方法 66例宫颈癌手术切除标本(包括癌组织和癌旁组织),实时荧光定量PCR检测HOTAIR的表达,分析其与临床病理特征的关系;用慢病毒介导shRNA干扰人宫颈癌细胞HeLa HOTAIR表达后,分别用CCK-8法、流式细胞术检测细胞增殖、周期和凋亡。结果 HOTAIR在宫颈癌组织中的相对表达量为8.25±0.46,高于癌旁组织的3.60±0.26(P<0.001);HOTAIR的表达水平与临床病理分期(P<0.05)、肿瘤大小(P<0.05)、淋巴结转移(P<0.05)密切相关;HOTAIR的表达被干扰后,HeLa细胞增殖明显减慢,48、72和96h的抑制率分别为20%、24.6%和33.1%;细胞周期被阻滞于G0/G1期;HOTAIR干扰组细胞凋亡比例为12.37%±2.74,高于对照组的5.94%±1.27(P<0.01)。结论 HOTAIR在宫颈癌组织中显著高表达,可以作为宫颈癌预测、判断预后的分子标志物和潜在的治疗靶点。

Abstract: Objective To investigate the expression of long non-coding RNA HOTAIR in cervical cancer tissues and its effects on HeLa cell growth and apoptosis. Methods The expression of HOTAIR in 66 cervical cancer tissues and matched adjacent normal tissues were measured using quantitative real-time RT-PCR and its correlation with the clinical parameters was analyzed. Lentiviral mediated shRNA was used to knockdown HOTAIR in HeLa cells to investigate its role in cell growth and apoptosis. Results HOTAIR expression in cervical cancer tissues was significantly upregulated compared with the matched nontumorous tissues (8.25±0.46 vs. 3.6±0.26; P<0.001); Increased HOTAIR expression was significantly correlated with tumor size(P<0.05), tumor stage(P<0.05) and lymph node metastasis(P<0.05). Knockdown of HOTAIR significantly reduce cell growth, cell cycle arrest at G0/G1 phase, and promoted cell apoptosis. Conclusion High expression of HOTAIR is involved in cervical cancer progression and could be a potential target for diagnosis and gene therapy.