遗传 ›› 2005, Vol. 27 ›› Issue (5): 705-709.

• 研究报告 • 上一篇    下一篇

Staufen基因在结直肠癌组织中的表达

朱益民;林 洁 ;陈 俭;黄 琼 ;邵丽娜2;来茂德   

  1. 浙江大学医学院公共卫生系,杭州310006
  • 收稿日期:2004-09-28 修回日期:2005-01-31 出版日期:2005-10-10 发布日期:2005-10-10
  • 通讯作者: 来茂德

The Expression of Staufen Gene in Colorectal Cancer

ZHU Yi-Min, LIN Jie, CHEN Jian, HUANG Qiong, SHAO Li-Na, LAI Mao-De   

  1. Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310006, China
  • Received:2004-09-28 Revised:2005-01-31 Online:2005-10-10 Published:2005-10-10
  • Contact: Maode Lai

摘要: 为研究甲基化差异相关基因Staufen在结直肠癌不同组织中的表达情况,采用RT-PCR和免疫组织化学等方法在结直肠癌病人中检测Staufen基因在腺癌、癌旁粘膜和相应远端切缘正常组织中的表达。研究发现,在mRNA水平上,远端切缘正常组织中Staufen基因的表达水平显著高于癌旁粘膜和腺癌(P<0.05);从正常组织、癌旁粘膜到腺癌,Staufen基因的表达有降低的趋势;未发现性别、年龄、肿瘤部位(结肠/直肠)、分化程度、淋巴结转移等临床病理因素与Staufen基因的表达有关(P均>0.05)。正常组织与腺癌组织的Staufen蛋白的表达水平显著高于癌旁粘膜(P<0.05),而正常组织与腺癌组织之间未发现有统计学差别(P>0.05)。结果表明,Staufen基因在癌旁粘膜和肿瘤中有低表达的趋势,该基因可能在结直肠癌的发生、发展中起作用。

关键词: 免疫组化, RT-PCR, 结直肠癌, Staufen基因

Abstract: To study the expression of differential methylation - associated Staufen gene in colorectal cancer(CRC), we detected the expression of Staufen gene in adenocarcinoma, mucosa adjacent to colorectal cancer(MACC)and corresponding distant normal tissue using RT-PCR and immunohistochemistry. We found that the expression of Staufen gene in MACC and adenocarcinoma of CRC was significantly lower than that in corresponding distal normal tissue at mRNA level(P<0.05.No significant associations were found between age, sex, location of cancer (colon/ rectal), degree of differentiation and metastasis of lymph node with expression of Staufen gene. Lower expression of Staufen protein in MACC was verified by comparing with matched normal tissue and adenocarcinoma(P<0.05). This study indicated low expression of Staufen gene in colorectal cancer and the Staufen gene might be involved in the development of colorectal cancer.

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