遗传 ›› 2011, Vol. 33 ›› Issue (4): 347-352.doi: 10.3724/SP.J.1005.2011.00347

• 研究报告 • 上一篇    下一篇

EN1调节UTROPHIN表达机制

王谦1,3, 曹东华2, 林长坤3, 王正东3 , 崔婉婷3 , 金春莲3   

  1. 1. 中国医科大学高职学院, 沈阳 110001 2. 中国人民解放军第二0二医院检验科, 沈阳 110003 3. 中国医科大学基础医学院医学遗传学教研室, 沈阳 110001
  • 收稿日期:2010-08-23 修回日期:2010-11-25 出版日期:2011-04-20 发布日期:2011-04-25
  • 通讯作者: 金春莲 E-mail:jchlcmu@126.com
  • 基金资助:

    国家十一五攻关课题项目(编号:2006BAI05A08)资助

The regulation of UTROPHIN expression by EN1

WANG Qian1, 3, CAO Dong-Hua2, LIN Chang-Kun3, WANG Zheng-Dong3, CUI Wan-Ting3, JIN Chun-Lian3   

  1. 1. Higher Profession School, China Medical University, Shenyang 110001, China 2. No.202 Hospital of People's Liberation Army, Shenyang 110003, China 3. Department of Medical Genetics, China Medical University, Shenyang 110001, China
  • Received:2010-08-23 Revised:2010-11-25 Online:2011-04-20 Published:2011-04-25
  • Contact: JIN Chun-Lian E-mail:jchlcmu@126.com

摘要: 为了探讨人类UTROPHIN蛋白表达上调的可能因素, 文章利用P-match软件预测人类UTROPHIN基因启动子区域可能的调控元件, 应用CHIP和EMSA实验加以验证, 并利用RNA干扰和荧光定量PCR的方法分析人类EN1转录因子调节UTROPHIN表达的作用机制。经P-match软件预测, UTROPHIN基因启动子区域有2个转录因子EN1的可能结合位点, 经CHIP和EMSA实验证实位点2是真正结合位点。通过RNA干扰实验, 发现在HeLa细胞中EN1基因沉默后, 可使UTROPHIN mRNA水平上调。以UTROPHIN蛋白为靶点可能为DMD(Duchenne muscular dystrophy)基因治疗提供一种新的策略。

关键词: EN1转录因子, 荧光定量PCR, RNA干扰, UTROPHIN蛋白

Abstract: To investigate possible factors up-regulating the expression of UTROPHIN, potential regulatory elements in the promoter of the human UTROPHIN was predicted by P-match software and verified by EMSA and ChIP. The mechanism of EN1 regulation of the human UTROPHIN expression was evaluated by RNA interference and real-time PCR analyses. Two potential EN1 binding sites in UTROPHIN promoter region were predicted by P-Match software but only the second site was verified to interact directly with EN1 by EMSA and ChIP. The results from RNA interference and real-time PCR showed that the mRNA level of UTROPHIN increased in HeLa cells after EN1 was knockdowned by siRNA. It indicated that EN1 might be a negative regulatory factor for UTROPHIN. Our study suggested that UTROPHIN might be a new target for DMD therapy.

Key words: RNA interfence, Real-time PCR, EN1, UTROPHIN