首页> 外文期刊>Genes to cells : >LEF-1 regulates proliferation and MMP-7 transcription in breast cancer cells
【24h】

LEF-1 regulates proliferation and MMP-7 transcription in breast cancer cells

机译:LEF-1调节乳腺癌细胞的增殖和MMP-7转录

获取原文
获取原文并翻译 | 示例
           

摘要

Matrix metalloproteinase-7 (MMP-7) is a small secreted proteolytic enzyme with broad substrate specificity. Its expression is associated with tumor invasion, metastasis, and survival in a variety of cancers including breast cancer. Using bioinformatics analysis, a conserved LEF-1 binding site became obvious that is mapped at the promoter region of the genomic MMP-7 locus. Consequently, electrophoretic mobility shift assay demonstrated in vitro binding of LEF-1 to the predicted MMP-7 promoter binding site. Here, we demonstrate that lymphoid enhancer binding factor-1 (LEF-1) is associated with regulation of the proliferation-associated cyclin D1 and a gene encoding MMP-7 in breast cancer cells. Thus, a decrease of LEF-1 expression using LEF-1 siRNA resulted in down-regulation of cyclin D and MMP-7 expression, respectively. Moreover, cell cycle analysis of LEF-1 siRNA-transfected human breast cancer cells revealed a significant arrest in G 2/M phase. Taken together, our results indicate a pivotal role of LEF-1 in the regulation of proliferation and MMP-7 transcription in breast cancer cells.
机译:基质金属蛋白酶7(MMP-7)是一种小的分泌蛋白水解酶,具有广泛的底物特异性。其表达与包括乳腺癌在内的多种癌症中的肿瘤浸润,转移和存活有关。使用生物信息学分析,一个保守的LEF-1结合位点变得很明显,它定位在基因组MMP-7基因座的启动子区域。因此,电泳迁移率变动分析证明了LEF-1与预测的MMP-7启动子结合位点的体外结合。在这里,我们证明淋巴增强剂结合因子-1(LEF-1)与乳腺癌细胞中与增殖相关的细胞周期蛋白D1和编码MMP-7的基因的调节有关。因此,使用LEF-1 siRNA降低LEF-1表达会分别导致细胞周期蛋白D和MMP-7表达下调。此外,LEF-1 siRNA转染的人乳腺癌细胞的细胞周期分析显示,G 2 / M期明显停滞。两者合计,我们的结果表明LEF-1在乳腺癌细胞增殖和MMP-7转录调控中的关键作用。

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