基础医学与临床 ›› 2011, Vol. 31 ›› Issue (11): 1256-1260.

• 研究论文 • 上一篇    下一篇

Noggin基因过表达对MDA-MB-231乳腺癌细胞生物学行为的影响及机制

黄佳祎1,郭丹2,吴迪3,3,李红丽3,3   

  1. 1. 重庆医科大学基础医学院
    2. 重庆医科大学附属第二医院
    3.
  • 收稿日期:2010-11-09 修回日期:2011-01-24 出版日期:2011-11-05 发布日期:2011-11-02
  • 通讯作者: 黄佳祎 E-mail:e738741@126.com
  • 基金资助:
    重庆市卫生局课题

The role of Noggin protein in proliferation and invasion of breast cancer cell line MDA-MB-231

  • Received:2010-11-09 Revised:2011-01-24 Online:2011-11-05 Published:2011-11-02
  • Contact: Jia-yi HUANG E-mail:e738741@126.com

摘要: 摘要:目的 观察过表达Noggin基因对乳腺癌细胞MDA-MB-231增殖、侵袭能力的影响,并初步探讨其机制。方法 以Noggin重组腺病毒感染乳腺癌细胞株MDA-MB-231,MTT法检测Noggin对MDA-MB-231细胞增殖能力的影响,划痕修复实验及Transwell细胞侵袭实验检测其运动和侵袭能力的改变,定量RT-PCR和总蛋白Western blot检测CXCR4和MMP-1基因的表达改变。结果 过表达Noggin基因的MDA-MB-231细胞增殖能力增强,差异有统计学意义(P<0.05);划痕修复实验提示过表达Noggin基因的MDA-MB-231细胞划痕愈合延迟;Transwell细胞侵袭试验提示与空病毒组相比(135±7),Noggin组穿膜细胞数明显降低(79±4),差异具有统计学意义(P<0.05)。定量PCR和总蛋白Western blot显示过表达Noggin后,MDA-MB-231细胞中CXCR4和MMP-1基因表达下调。结论 Noggin蛋白可抑制乳腺癌细胞MDA-MB-231的运动和迁移。其机制可能与下调CXCR4和MMP-1基因的表达相关。

关键词: Noggin, 乳腺癌, 骨转移肿瘤, MDA-MB-231

Abstract: Abstract: Objective To investigate the effecti and mechanism of Noggin protein in proliferation and invasion of human breast cancer cell line MDA-MB-231. Methods MDA-MB-231 cells were infected with recombinant Noggin adenovirus. MTT, Wound-healing experiment and Matrigel invasion assays were performed to examine the change of proliferation, movement and invasion. The expression of MMP-1 and CXCR4 was evaluated by real-time PCR and Western blot. Results The growth of MDA-MB-231 cells infected with Ad-Noggin is faster than control group(P<0.05), while scratch repair time extended. Transwell cell invasion assay shown that the invasive ability of MDA-MB-231 cells were inhibited in Noggin group(79±4), compared with GFP group(135±7)(P<0.05). Using real-time PCR and western blot, the expression of CXCR4 and MMP1 was confirmed to decrease. Conclusion Noggin protein can enhance the proliferation of MDA-MB-231 cell line, and inhibit its invasion and metastases. Maybe the cancer-related gene CXCR4 and MMP1 was involved in it.

Key words: Key words: Noggin, breast cancer, osseous metastasis, MDA-MB-231

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