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RNA干扰靶向XIAP对人脑胶质瘤细胞U251的生物学行为影响

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摘要 目的采用RNA干扰技术(RNAi)抑制X连锁凋亡抑制蛋白(XIAP),观察抑制前后人脑胶质瘤细胞U251的生物学行为。方法 DNA重组技术合成针对人脑胶质瘤U251细胞XIAP基因三条siRNA(siRNA1,siRNA2,siRNA3),以脂质体2000作为载体进行转染,RT-PCR法检测XIAP的mRNA表达,选择特异性较高的siRNA,以此siRNA为标准建立20 nmol/L、30 nmol/L、50nmol/L3个浓度梯度,转染细胞,Western blot检测XIAP基因的蛋白表达,选出最低有效浓度;流式细胞仪检测抑制前后细胞周期和凋亡率。结果 siRNA成功转染了人脑胶质瘤细胞U251,转染率达到80%以上;RT-PCR检测siRNA2特异性较高;Western blot检测终浓度为30 nmol/L的siRNA抑制效率较高;流式细胞仪检测停滞在G0/G1期的细胞增多,在S期的细胞减少,并且细胞的凋亡率增加。结论通过RNA干扰可以抑制人脑胶质瘤U251细胞XIAP的表达,促进人脑胶质瘤细胞凋亡,从而抑制细胞的生长。
出处 《中西医结合心脑血管病杂志》 2011年第6期720-722,共3页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
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参考文献8

  • 1Tfelt-Hansen J,Kanuparthi D,Chattopadhyay N.The emerging role of pituitary tumor transforming gene in tumor genesis[J].Clinic Med Press,2006,4(2):130-137.
  • 2Chow LS,LoK W,Kwong J,et al.RASSFIA is a target tumor suppressor from 3p21.3 in nasopharyngeal carcinoma[J].Cancer,2004,109(6):839-847.
  • 3Dreijerink K,Braga E,Kuzmin I,et al.The candidate tumor suppressor gene RASS1A from human chromosome 3p21.3 are involved in kidney tumor genesis[J].Proc Antacids Sci USA,2001,98(13):7504-7509.
  • 4Murray PG,Qiu GH,Fu L,et al.Frequent epigenetic inactivation of the RASSF1A tumor suppressor gene in Hodgkin lymphoma[J].Oncogene,2004,23(6):1326-1331.
  • 5LaCasse EC,Holcik M,Korneluk RG,et al.Apoptosis in health,disease,and therapy:Overview and methodology in apoptosis in health and disease[J].Clinical and therapeutic aspects Cambridge:Cambridge University Press,2005,6:1-48.
  • 6Takeuchi H,Kim J,Fujimoto A,et al.X-linked inhibitor of apoptosis protein expression level in colorectal cancer is regulated by hepatocyte growth factor met pathway via at signaling[J].Clinic Cancer Press,2005,11:7621-7628.
  • 7Schimmer AD,Dalili S,Batey RA,et al.Targeting XIAP for the treatment of malignancy[J].Cell Death Differ,2006,13:179-188.
  • 8陆嵘,房静远.表观遗传修饰与肿瘤[J].生命科学,2006,18(1):10-14. 被引量:29

二级参考文献32

  • 1Alvarez-Venegas R, Avramova Z. Methylation patterns of histone H3 Lys 4, Lys 9 and Lys 27 in transcriptionally active and inactive Arabidopsis genes and in atxl mutants.Nucleic Acids Res, 2005, 33(16):5199-5207.
  • 2Baylin S B. Tying it all together: epigenetics, genetics, cell cycle and cancer. Science, 1997, 277(5334):1948-1949.
  • 3Kanai Y, Ushijima S, Kondo Y, et al. DNA methyltransferase expression and DNA methylation of CpG island and pericentromeric satellite region in human colorectal and stomach cancers, Int J Cancer, 2001, 91(2): 205-212.
  • 4Tycko B. Epigenetic gene silencing in cancer. J Clin Invest,2000, 105(4): 401-407.
  • 5Nephew K P, Huang T H. Epigenetic gene silencing in cancer initiation and progression. Cancer Lett, 2003, 190(2):125-133.
  • 6Linggi B E, Brandt S J, Sun Z W, et al. Translating the histone code into leukemia. J Cell Biochem, 2005, 96(5): 938-950.
  • 7Yang X J, Ogryzko V V, Nishikawa J, et al. A p300/CBP-associated factor that competes with the adenoviral oncoprotein E1A. Nature, 1996, 382(6589): 319-324.
  • 8Loprevite M, Tiseo M, Grossi F, et al. In vitro study of CI994, a histone deacetylase inhibitor, in non-small cell lung cancer cell lines. Oncol Res, 2005, 15(1): 39-48.
  • 9Mahadevan L C, Willis A C, Barratt M J. Rapid histone H3 phosphorylation in response to growth factors, phorbol esters, okadaic acid, and protein synthesis inhibitors. Cell,1991, 65(5): 775-783.
  • 10Nowak S J, Corces V G. Phosphorylation of histone H3: a balancing act between chromosome condensation and transcriptional activation. Trends Genet, 2004, 20(4): 214-220.

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