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• 临床研究 • 上一篇    下一篇

紧密连接蛋白claudin-6在人乳腺癌细胞和组织中的表达及其与乳腺癌淋巴结转移的关系

吴 琼1,吴晓艳1,2,张海英1, 刘亚芳1,任 〖HT5”,7〗王〖KG-*3〗月[HT5”〗1,曲珊珊1,全成实   

  1. 1.吉林大学基础医学院 病理生物学教育部重点实验室,吉林 长春 130021;2.吉化总医院一院心内科,吉林 吉林 132021
  • 收稿日期:2007-09-19 修回日期:1900-01-01 出版日期:2008-03-28 发布日期:2008-03-28
  • 通讯作者: 全成实

Expression of tight junctions protein claudin-6 in breast cancer tissues and cell lines and its relationship with metastasis of breast cancer

WU Qiong1,WU Xiao-yan1,2,ZHANG Hai-ying1,LIU Ya-fang1, REN Yue1,QU Shan-shan1,QUAN Cheng-shi1,LI Yu-lin1   

  1. 1.Key Laboratory of Pathology,Ministry of Education,School of Basic Medical Sciences, Jilin University,Changchun 130021, China;2.Department of Cardiology,First Hospital,Jihua Hospital,Jilin 132021,China
  • Received:2007-09-19 Revised:1900-01-01 Online:2008-03-28 Published:2008-03-28
  • Contact: QUAN Cheng-shi

摘要: 目的:探讨紧密连接蛋白claudin-6在人乳腺癌细胞株、乳腺癌组织中的表达及与淋巴结转移的关系,为判定乳腺癌淋巴结转移及估计预后提供依据。方法:应用RT-PCR和免疫组织化学S-P法,对人乳腺上皮细胞株HBL-100、低侵袭性乳腺癌细胞株MCF-7、高侵袭性乳腺癌细胞株MDA-MB231和38例人乳腺癌组织claudin-6的表达进行检测,同时以30例乳腺良性肿瘤作为对照。结果: claudin-6在HBL-100细胞株中有表达,在乳腺癌细胞株MCF-7和 MDA-MB231中均无表达;乳腺癌组织中claudin-6表达明显低于对照组(P<0.05);claudin-6表达与乳腺癌组织的病理分级及淋巴结转移有关联(P<0.05),与患者年龄和临床分期无关(P>0.05)。结论:claudin-6可能在乳腺癌的发生和转移中起一定的负性调控作用,并可作为判断乳腺癌淋巴结转移和估计预后的参考指标。

关键词: 乳腺肿瘤, 免疫组织化学, 逆转录聚合酶链反应

Abstract: Objective To investigate the expression of tight junctions protein claudin-6 in breast cancer cell lines and tissues and its relationship with metastasis.Methods RT-PCR and immunohistochemistry analysis were used to detect claudin-6 mRNA and protein expressions in human mammary cancer tissues and cell lines. Results claudin-6 gene was expressed in mammary gland epithelial cell HBL-100,but undetectable in other cell lines;compared with benign mammary gland,fibroadenoma,claudin-6 was down-regulated in breast cancer(P<0.05).Furthermore,the down -regulation had significantly negative correlation with mammary tumor pathological grades and metastasis(P<0.05),but not related to age and clinical stages (P>0.05).Conclusion claudin-6 may play a negative regulatory effect on mammary carcinogenesis and metastasis,and may be a potential indicator for mammary cancer metastasis and prognosis.

Key words: mammary neoplasms, immunohistochemistry, reverse transcription-polymerase chain reaction

中图分类号: 

  • R361.2