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p120ctn亚型在肺鳞癌、腺癌中表达及意义 被引量:5

Expression and significance of p120ctn isoforms in lung squamous cell carcinomas and adenocarcinomas
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摘要 背景与目的已有的研究显示:p120ctn(p120 catenin)与肿瘤的发生密切相关,在保持细胞黏附中起着重要作用,本研究通过观察p120ctn各亚型在肺鳞癌、腺癌和相应的癌旁肺组织中蛋白表达量的变化,探讨p120ctn亚型与各临床病理因素的关系。方法应用免疫荧光和Western Blot方法检测肺鳞癌、腺癌及对应癌旁正常肺组织中p120ctn各亚型的表达情况。结果与正常肺组织相比,p120ctn在肺癌细胞膜表达减弱,呈现胞膜荧光不连续或缺失,胞浆内存在p120ctn的蓄积。正常肺组织中p120ctn总蛋白量明显高于肺癌组织(P<0.001)。p120ctn蛋白以亚型1(120KD)和亚型3(100KD)表达为主,而在肺癌组织则出现1、3亚型表达缺失或减弱(P=0.001,P<0.001)。并且亚型3的这种缺失或减弱的现象与肺癌的淋巴结转移负相关(P=0.005)。结论p120ctn亚型1和3的蛋白表达的减弱或缺失是肺癌的普遍现象,且这种现象与淋巴结的转移相关。 Background and Objective It has been proven that p120ctn plaied an important role in cell adhesion and correlates with tumorigenesis significantly, the aim of this work is to investigate the expression of p120ctn (p120 eatenin) isoform proteins in lung squamous cell carcinomas and adenocarcinomas, and analyze the correlations between p120ctn and clinicopathological parameters. Methods Immunofluorescence and Westren Blot were used to detect the expression of p120ctn isoforms in lung cancer tissues and the corresponding normal lung tissues. Results Compared to normal epithelium of lung, lung cancer tissues show reduction or absence of membrane expression or cytoplasmic accumulation of p120ctn. In normal lung tissues, the total levels of p120ctn proteins were significantly higher than that in lung cancer tissues (P〈0.001). The isoform 1 (120KD) and isoform 3 (100KD) proteins were the major isoforms of p120ctn expressed in normal lung tissues, which were significantly reduced in lung cancer samples (P=0.001 and P〈0.001, respectively). Furthermore, the changes in isoform 3 protein levels was negatively associated with lymph node metastasis (P=0.005). Conclusion Reductions of p120ctn isoform 1 and 3 is a common phenomenon in lung cancer tissues and may play a role in metastasis progression in human lung cancer.
出处 《中国肺癌杂志》 CAS 2008年第2期189-193,共5页 Chinese Journal of Lung Cancer
基金 国家自然科学基金(No.30470764 No.30670917)资助~~
关键词 P120CTN 肺肿瘤 荧光抗体技术 WESTERN BLOTTING p120 Lung neoplasms Fluorescent antibody technique Western blotting
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参考文献22

  • 1Reynolds AB,Daniel J,McCrea PD,et al.Identification of a new catenin:the tyrosine kinase substrate p120cas associates with E-cadherin complexes.Mol Cell Biol,1994,14(12):8333-8342.
  • 2Yap AS,Niessen CM,Gumbiner BM.The juxtamembrane region of the cadherin cytoplasmic tail supports lateral clustering,adhesive strengthening,and interaction with p120ctn.J Cell Biol,1998,141(3):779-789.
  • 3Hatzfeld M.The p120 family of cell adhesion molecules.Eur J Cell Biol,2005,84(2-3):205-214.
  • 4Myster SH,Cavallo R,Anderson CT,et al.Drosophila p120 catenin plays a supporting role in cell adhesion but is not an essential adherens iunction component.J Cell Biol,2003,160(3):433-449.
  • 5Anastasiadis PZ,Reynolds AB.The p120 catenin family:complex roles in adhesion,signaling and cancer.J Cell Sci,2000,113(Pt 8):1319-1334.
  • 6Aho S,Levansuo L,Montonen O,et al.Specific sequences in p120ctn determine subcellular distribution of its multiple isoforms involved in cellular adhesion of normal and malignant epithelial cells.J Cell Sci,2002,115(Pt 7):1391-1402.
  • 7Keirsebilck A,Bonne S,Staes K,et al.Molecular cloning of the human p120ctn catenin gene(CTNND1):expression of multiple alternatively spliced isoforms.Genomics,1998,50(2):129-146.
  • 8Travis WD,Brambilla E,Muller-Hermelink HK,et al.eds.Worid Heahh Organization Classification of Tumors.Pathology and Genetics of Tumors of the Lung,Pleura,Thymus and Heart.Lyon:IARC Press,2004:9-124.
  • 9Watanabe Y.TNM classification for lung cancer.Ann Thorac Cardiovase Surg.2003,9(6):343-350.
  • 10刘洋,徐洪涛,刘楠,王亮,王恩华.非小细胞肺癌组织中p120^(ctn)与RhoA和Cdc42表达的相关性及意义[J].中国肺癌杂志,2005,8(4):304-308. 被引量:5

二级参考文献23

  • 1Thoreson MA, Anastasiadis PZ, Daniel JM, et al. Selective uncoupling of p120(ctn) from E-cadherin disrupts strong adhesion. J Cell Biol,2000,148:189-202.
  • 2Mariner DJ, Anastasiadis P, Keilhack H, et al. Identification of Src phosphorylation sites in the catenin p120ctn. J Biol Chem,2001,276:28006-28013.
  • 3Daniel JM, Reynolds AB.The catenin p120(ctn) interacts with Kaiso, a novel BTB/POZ domain zinc finger transcription factor. Mol Cell Biol,1999,19:3614-3623.
  • 4Bremnes RM, Veve R, Gabrielson E, et al. High-throughput tissue microarray analysis used to evaluate biology and prognostic significance of the E-cadherin pathway in non-small-cell lung cancer. J Clin Oncol,2002,20:2417-2428.
  • 5Karayiannakis AJ, Syrigos KN, Alexiou D, et al. Expression patterns of the novel catenin p120cas in gastrointestinal cancers. Anticancer Res,1999,19:4401-4405.
  • 6Gold JS, Reynolds AB, Rimm DL. Loss of p120ctn in human colorectal cancer predicts metastasis and poor survival. Cancer Lett,1998,132:193-201.
  • 7Sarrio D, Perez-Mies B, Hardisson D, et al. Cytoplasmic localization acterize lobular breast carcinoma from of p120ctn and E-cadherin loss charpreinvasive to metastatic lesions. Oncogene, 2004,23:3272-3283.
  • 8Syrigos KN, Karayiannakis A, Syrigou EI, et al. Abnormal expression of p120 correlates with poor survival in patients with bladder cancer. Eur J Cancer,1998,34:2037-2040.
  • 9Noren NK, Liu BP, Burridge K, et al. p120 catenin regulates the actin cytoskeleton via Rho family GTPases. J Cell Biol, 2000,150:567-580.
  • 10Jawhari AU, Noda M, Pignatellim M, et al. Up-regulated cytoplasmic expression, with reduced membranous distribution, of the src substrate p120(ctn) in gastric carcinoma.J Pathol, 1999,189:180-185.

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