期刊文献+

抑癌基因PTEN在胃癌细胞中的表达及意义 被引量:2

暂未订购
导出
摘要 目的探讨PTEN基因mRNA及蛋白在胃癌细胞中的表达规律及其生物学意义。方法分别采用RT-PCR技术和Western blot方法检测SGC-7901,BGC-823,MGC-803,HGC-27等4种胃癌细胞系的PTEN mR-NA表达及蛋白表达水平。结果PTEN mRNA与蛋白质在4种胃癌细胞系中均有异常表达,且表达水平呈正相关(r=0.99,P<0.01),表达顺序依次为:SGC-7901(中分化)表达最高(P<0.01),BGC-823(低分化)、MGC-803(低分化)次之(两者差异无显著性,P>0.05),HGC-27(未分化)表达水平最低(P<0.01),其相关表达与细胞分化程度呈正比关系。结论PTEN基因的异常改变与胃癌的发生发展密切相关;PTEN基因mRNA及其蛋白表达可能是反映胃癌发生发展及预后的重要生物学指标之一。
出处 《广东医学》 CAS CSCD 北大核心 2006年第3期318-320,共3页 Guangdong Medical Journal
基金 国家自然科学基金资助项目(编号:30300154)
  • 相关文献

参考文献6

  • 1CANTLY L C,NEEL B G.New insights into tumor suppression PTEN suppress tumor formation by restraining the phosphoinositide 32kinase/Akt pathway[J].Proc Natl Acad Sci USA,1999,96(8):4240-4245.
  • 2MCCONNACHIE G,PASS I,WSLKER S M,et al.Interfacial kinetic analysis of the tumour suppressor phosphatase,PTEN:evidence for activation by anionic phospholipids[J].Biochem J,2003,371 (Pt 3):947-955.
  • 3张伟峰,杨维良,王夫景,张新晨.PTEN基因在胃癌中的表达及其意义[J].中华实验外科杂志,2003,20(5):468-469. 被引量:18
  • 4ZAHO H,DDUPONT J,YAKAR S,et al.PTEN inhibits cell proliferation and induces apoptosis by downregulating cell surface IGF-IR expression in prostate cancer cells[J].Oncogene,2004,23:786-794.
  • 5STAMBOLIC V,SUZUKI A,POMPA J L,et al.Negative Regulation of PKB/Akt dependent cell survival by the tumor Suppressor PTEN[J].Cell,1998,95:29.
  • 6YI H K,KIM S Y,HWANG P H,et al.Impact of PTEN on the expression of insulin-like growth factors (IGFs) and IGF-binding proteins in human gastric adenocarcinoma cells[J].Biochem Biophys Res Commun,2005,330(3):760-767.

共引文献17

同被引文献15

  • 1李平,钟雪云,秦艳芳,林琛莅,贾晋萍.PTEN在人脑胶质瘤细胞中的表达及其对细胞增殖的影响[J].癌症,2007,26(3):247-251. 被引量:7
  • 2Poetsch M, Lorenz G, Kleist B. Detection of new PTEN/MMACI mutations in head and neck squamous cell carcinomas with loss of chromosome 10 [J]. Cancer - Genet - Cytogenet,2002,132( 1 ) : 20 - 24.
  • 3An Q, Liu Y, Gao Y, et al. Detection of tumor suppressor genes in Chinese non - small cell lung cancer[J]. Cancer-Lett, 2002, 184(2): 189 - 195.
  • 4Chen J,Kesari S,Rooney C,et al.Inhibition of Notch signaling blocks growth of glioblastoma cell lines and tumor neurospheres[J].Genes Cancer,2010,1(8):822-835.
  • 5Fresno Vara JA,Casado E,de Castro J,et al.PI3K/Akt signaling pathway and cancer[J].Cancer Treat Rev,2004,30(2):193-204.
  • 6Wang Z,Li Y,Banerjee S,et al.Down-regulation of Notch-1 and Jagged-1 inhibits prostate cancer cell growth,migration and invasion,and induces apoptosis via inactivation of Akt,mTOR,and NF-kB signaling pathways[J].J Cell Biochem,2010,109(4):726-736.
  • 7Calzavara E,Chiaramonte R,Cessna D,et al.Reciprocal regulation of Notch and PI3K/Akt signalling in T-ALL cells in vitro[J].J Cell Biochem,2008,103(5):1405-1412.
  • 8Gutierrezl A,Look AT.NOTCH and PI3K-AKT pathways intertwined[J].Cancer Cell,2007,12(5):411-413.
  • 9Siemers ER,Quinn JF,Kaye J,et al.Effects of a γ-secretase inhibitor in a randomized study of patients with Alzheimer disease[J].Neurology,2006,66(4):602-604.
  • 10Wang Z,Li Y,Ahmad A,et al.Targeting Notch signaling pathway to overcome drug-resistance for cancer therapy[J].Biochim Biophys Acta,2010,1806(2):258-267.

引证文献2

二级引证文献4

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部