高级搜索

抑制NF-κB 对人肺癌裸鼠移植瘤生长及血管生成的影响

邢丽华, 刘剑波, 张惠兰, 张珍祥

邢丽华, 刘剑波, 张惠兰, 张珍祥. 抑制NF-κB 对人肺癌裸鼠移植瘤生长及血管生成的影响[J]. 肿瘤防治研究, 2005, 32(07): 392-394. DOI: 10.3971/j.issn.1000-8578.2375
引用本文: 邢丽华, 刘剑波, 张惠兰, 张珍祥. 抑制NF-κB 对人肺癌裸鼠移植瘤生长及血管生成的影响[J]. 肿瘤防治研究, 2005, 32(07): 392-394. DOI: 10.3971/j.issn.1000-8578.2375
XING Li-hua, LIU Jian-bo, ZHANG Hui-lan, ZHANG Zhen-xiang. Effects of NF-κB Inhibitor on the Growth and Angiogenesis of Human Lung Cancer Xenograf ts in Nude Mice[J]. Cancer Research on Prevention and Treatment, 2005, 32(07): 392-394. DOI: 10.3971/j.issn.1000-8578.2375
Citation: XING Li-hua, LIU Jian-bo, ZHANG Hui-lan, ZHANG Zhen-xiang. Effects of NF-κB Inhibitor on the Growth and Angiogenesis of Human Lung Cancer Xenograf ts in Nude Mice[J]. Cancer Research on Prevention and Treatment, 2005, 32(07): 392-394. DOI: 10.3971/j.issn.1000-8578.2375

抑制NF-κB 对人肺癌裸鼠移植瘤生长及血管生成的影响

详细信息
    通讯作者:

    邢丽华

  • 中图分类号: R734. 2

Effects of NF-κB Inhibitor on the Growth and Angiogenesis of Human Lung Cancer Xenograf ts in Nude Mice

More Information
    Corresponding author:

    XING Li-hua

  • 摘要: 目的 探讨核因子-κB(NF-κB)抑制剂吡咯烷二硫氨基甲酸(PDTC)对肺癌裸鼠移植瘤生长及血管生成的影响。方法 人肺癌A549细胞接种于裸鼠皮下,建立肺癌裸鼠移植瘤模型,分为对照组和PDTC组,比较移植瘤重量,计算抑瘤率;RT—PCR检测移植瘤环氧化酶-2(COX-2)基因表达,免疫组织化学法检测血管内皮生长因子(VEGF)和FⅧ蛋白表达,并计数微血管密度(MVD)。结果 PDTC组移植瘤重量显著低于对照组(P<0.01),抑瘤率为41.03%;COX-2、VEGF表达及MVD计数均显著低于对照组(P<0.01,P<0.01,P<0.05)。结论 PDTC可抑制肺癌裸鼠移植瘤的生长,该作用可能与其抑制COX-2、VEGF表达,从而抑制血管生成有关。

     

    Abstract: Objective  To study the effect of pyrrolidine dithiocarbamate ( PDTC), a potent inhibitor of nuclear factorκB (NF-κB) activation, on the growth and angiogenesis of human lung cancer xenografts in nude mice. Methods  A549 cells were incubated and were inoculated subcutaneously in athymic nude mice to establish xenograf t models. The mice were divided into control group and PDTC group. The inhibitory rate was calculated according to the weight s of xenografts. Cyclooxygenase 2 (COX-2) mRNA was measured by semiquantitative reverse transcription-polymerase chain reaction ( RT-PCR) analysis. The proteins expressions of vascular endothelial growth factor (VEGF) and F Ⅷ were assessed by immunohistochemical method, and MVD was counted according to F Ⅷ staining. Results  The weight of xenografts was significantly lower in PDTC group than that in control group ( P < 0. 01) and the inhibitory rate was 41. 03 %. The expressions of COX-2, VEGF and MVD count of xenografts were significantly decreased in PDTC group than that in control group ( P < 0. 01, P < 0. 01, P < 0. 05) . Conclusion  PDTC can inhibit the growth of human lung cancer xenografts in nude mice, which may be due to the downregulation of COX-2 and VEGF thus inhibit tumor angiogenesis.

     

计量
  • 文章访问数:  1848
  • HTML全文浏览量:  21
  • PDF下载量:  633
  • 被引次数: 0
出版历程
  • 收稿日期:  2004-11-24
  • 修回日期:  2005-03-02
  • 刊出日期:  2005-07-04

目录

    /

    返回文章
    返回
    x 关闭 永久关闭