...
首页> 外文期刊>Oncology reports >Restoration of miR-7 expression suppresses the growth of Lewis lung cancer cells by modulating epidermal growth factor receptor signaling
【24h】

Restoration of miR-7 expression suppresses the growth of Lewis lung cancer cells by modulating epidermal growth factor receptor signaling

机译:miR-7表达的恢复通过调节表皮生长因子受体信号传导来抑制Lewis肺癌细胞的生长

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

microRNAs are an abundant class of short endogenous non-coding RNAs that function as important regulators of multiple target genes and participate in diverse biological roles in carcinogenesis. However, the role of miR-7 in lung cancer remains unclear and requires further elucidation. In the present study, we found a reduction of miR-7 expression in Lewis lung cancer (3LL) cells originating from mice by real-time RT-PCR. Restoration of miR-7 inhibited 3LL cell proliferation, induced cell apoptosis in vitro and reduced tumorigenicity in vivo. We further confirmed that miR-7 downregulated the expression of both epidermal growth factor receptor (EGFR) and murine leukemia viral oncogene homologue-1 (RAF-1) oncogenes by real-time PCR and western blot analysis. Furthermore, inhibition of EGFR showed similar effects to miR-7 enforcement in 3LL cells. Taken together, these findings revealed that miR-7 acts as an antitumor miRNA in 3LL by targeting and suppressing the expression of both EGFR and RAF-1 oncogenes. This study may provide a rationale for the use of miR-7 in lung cancer target therapy.
机译:microRNA是一类丰富的短内源性非编码RNA,可作为多个靶基因的重要调节子,并参与致癌作用中的多种生物学作用。但是,miR-7在肺癌中的作用仍不清楚,需要进一步阐明。在本研究中,我们发现通过实时RT-PCR可以降低源自小鼠的Lewis肺癌(3LL)细胞中miR-7的表达。恢复miR-7可抑制3LL细胞增殖,在体外诱导细胞凋亡,并在体内降低致瘤性。我们进一步证实,miR-7通过实时PCR和Western印迹分析下调了表皮生长因子受体(EGFR)和鼠白血病病毒癌基因同源物1(RAF-1)癌基因的表达。此外,在3LL细胞中,EGFR的抑制作用与miR-7的执行相似。综上所述,这些发现揭示了miR-7通过靶向并抑制EGFR和RAF-1癌基因的表达而在3LL中充当抗肿瘤miRNA。这项研究可能为在肺癌靶标治疗中使用miR-7提供理论依据。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号