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shRNA靶向干扰Notch2对人脑胶质瘤细胞株U251的影响

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摘要 目的研究Notch2信号对人脑胶质瘤细胞株U251的增殖、凋亡和细胞周期的影响。方法应用脂质体将pGFP-V-RSNotch2shRNA干扰质粒导入胶质瘤细胞株U251后,应用MTT法检测细胞增殖变化、流式细胞仪检测转染效率、细胞凋亡和细胞周期的改变、RT-PCR和Westenblot检测Notch2基因的抑制效果和干扰后细胞周期、凋亡相关蛋白的表达改变。结果 pGFP-V-RSNotch2shRNA干扰质粒转染效率为86.68%±2.54%,转染后在mRNA水平和蛋白水平均发生Notch2的表达抑制,与无关序列组和未转染组相比干扰组细胞自第5天开始增殖明显减慢(P<0.05),干扰组G0/G1期细胞百分数(68.2%±1.29%)显著高于无关序列组和未转染组(35.8%±2.37%和47.7%±1.03%,P<0.01),而干扰组G2/S期细胞(20.4%±1.56%)显著低于无关序列组和未转染组(49.1%±3.65%和35.4%±2.42%,P<0.05),干扰组凋亡率显著升高(P<0.05)。细胞周期、凋亡相关蛋白P21上调,cy-clinD1、p-Rb下调。结论 Notch2靶向干扰能够显著抑制U251细胞株的增殖、阻滞细胞周期、增加凋亡。
出处 《中国神经精神疾病杂志》 CAS CSCD 北大核心 2010年第8期495-497,共3页 Chinese Journal of Nervous and Mental Diseases
基金 2010河北省自然科学基金资助(编号:C2010000532)
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参考文献12

  • 1Strizzi L,Hardy KM,Seftor EA,et al.Development and cancer:at the crossroads of Nodal and Notch signaling[J].Cancer Res,2009,69(18):7131-7134.
  • 2Fortini ME.Notch signaling:the core pathway and its posttranslational regulation[J].Dev Cell,2009,16(5):633-647.
  • 3Fan X,Mikolaenko I,Elhassan I,et al.Notch1 and Notch2 Have Opposite Effects on Embryonal Brain Tumor Growth[J].Cancer Res,2004,64(21):7787-7793.
  • 4Leong KG,Karsan A.Recent insights into the role of Notch signaling in tumorigenesis[J].Blood,2006,107(6):2223-2233.
  • 5Palomero T,Ferrando A.Therapeutic targeting of NOTCH1 signaling in T-cell acute lymphoblastic leukemia[J].Clin Lymphoma Myeloma,2009,93(3):205-210.
  • 6Zardawi SJ,O'Toole SA,Sutherland RL,et al.Dysregulation of Hedgehog,Wnt and Notch signalling pathways in breast cancer[J].Histol Histopathol,2009,24(3):385-398.
  • 7Sjolund J,Johansson M,Manna S,et al.Suppression of renal cell carcinoma growth by inhibition of Notch signaling in vitro and in vivo[J].J Clin Invest,2008,118(1):217-228.
  • 8Dai J,Ma D,Zang S,et al.Cross-talk between Notch and EGFR signaling in human breast cancer cells[J].Cancer Invest,2009,27(5):533-540.
  • 9Sarmento LM,Huang H,Limon A,et al.Notch1 modulates timing of G1/S progression by inducing SKP2 transcription and p27 Kip1 degradation[J].J Exp Med,2005,202(1):157-168.
  • 10Sriuranpong V,Borges MW,Ravi RK,et al.Notch signaling induces cell cycle arrest in small cell lung cancer cells[J].Cancer Res,2001,61(7):3200-3205.

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