期刊文献+

甲状腺乳头状癌中PTEN基因启动子甲基化及其蛋白表达的相关性 被引量:14

原文传递
导出
摘要 目的探讨甲状腺乳头状癌(papillarythyroidcarcinoma,PTC)组织中PTEN基因启动子区域甲基化状态及其蛋白表达的相关性。方法采用甲基化特异性聚合酶链反应及免疫组化sP技术,检测80例PTC及其相对应的癌旁组织中PTEN基因启动子甲基化状态及其蛋白表达。结果在癌旁组织中,无一例出现PTEN基因启动子甲基化,而在PTC中,有25%(20/80)出现甲基化,且其甲基化状态与TNM分期、病理分级及淋巴转移有关(P值均〈0.05);癌旁组织和PTC组织中,PTEN蛋白表达的阳性率分别为100.0%(80/80)和41.3%(33/80),P〈0.01。在PTC组中,在病理分级I级和Ⅱ级组,PTEN蛋白阳性率分别为54.0%(27/50)和20.0%(6/30),在淋巴转移阳性和阴性组分别为20.6%(7/34)和56.5%(26/46),以上两组比较差异有统计学意义(X。值分别为8.944和10.046,P值均〈0.01);PTEN基因启动子甲基化与其蛋白表达有明显的相关性(x2=9.095,P〈0.01)。结论PTEN基因启动子区域甲基化是该基因失活的重要机制之一,在PTC的发生、发展中起着重要的作用。
出处 《中华耳鼻咽喉头颈外科杂志》 CAS CSCD 北大核心 2010年第4期330-333,共4页 Chinese Journal of Otorhinolaryngology Head and Neck Surgery
基金 基金项目:河南省医学科技创新人才基金(2009WQN001) 河南省杰出青年科学基金(0512000900)
  • 相关文献

参考文献14

  • 1Li J,Yen C,Liaw D,et al.PTEN,a putative protein tyrosine phosphatase gene mutated in human brain,breast and prostate cancer.Science,1997,275:1943-1947.
  • 2殷德涛,董明敏.喉鳞状细胞癌中脆性组氨酸三联体基因微卫星的不稳定性和杂合性丢失[J].中华耳鼻咽喉头颈外科杂志,2005,40(1):45-48. 被引量:14
  • 3Dahia PL,Marsh DJ,Zheng Z,et al.Somatic deletions and mutations in the Cowden disease gene,PTEN,in sporadic thyroid tumors.Cancer Res,1997,57:4710-4713.
  • 4Gimm O,Perren A,Weng LP,et al.Differential nuclear and cytoplasmic expression of PTEN in normal thyroid tissue,and benign and malignant epithelial thyroid tumors.Am J Pathol.2000,156:1693-1700.
  • 5Halachmi N,Halachmi S,Evron E,et al.Somatic mutations of the PTEN tumor suppressor gene in sporadic follicular thyroid tumors.Genes Chromosomes Cancer,1998,23:239-243.
  • 6Yeh JJ,Marsh DJ,Zedenius J,et al.Fine-structure deletion mapping of 10q22-24 identifies regions of loss of heterozygoisty and surrests that sporadic follicular thyroid adenomas and follicular thyroid carcinomas develop along distinct neoplastic pathways.Genes Chromosomes Cancer,1999,26:322-328.
  • 7Soria JC,Lee HY,Lee JI,et al.Lack of PTEN expression in nonsmall cell lung cancer could be related to promoter methylation.Clin Cancer Res,2002,8:1178-1184.
  • 8Alvarez-Nunez F,Bnssaglia E,Mauricio D,et al.PtEN promoter methylation in sporadic thyroid carcinomas.Thyroid,2006,16:17-23.
  • 9Salvesen HB,MacDonald N,Ryan A,et al.PTEN methylation is associated with advanced stage and microsatellite instability in endnometrial carcinoma.Int J Cancer,2001,91:22-26.
  • 10tallini G.Molecular pathobiology of thyroid neoplasms.Endocr Pathol,2002,13:271-288.

二级参考文献8

  • 1Gotte K, Hadaczek P, Coy JF, et al. Fhit expression is absent or reduced in a subset of primary head and neck cancer. Anticancer Res, 2000,20: 1057-1060.
  • 2Sung NS, Zeng Y, Raab-Traub N. Alterations on chromosome 3 in endemic and nonendemic nasopharyngeal carcinoma. Int J Cancer, 2000,86: 244-250.
  • 3Ohta M, Inoue H, Cotticelli MG, et al. The FHIT gene, spanning the chromosome 3p14.2 fragile site and renal carcinoma-associated t(3;8) breakpoint, is abnormal in digestive tract cancers. Cell, 1996,84: 587-597.
  • 4Petursdottir TE, Hafsteinsdottir SH, Jonasson JG, et al. Loss of heterozygosity at the FHIT gene in different solid human tumours and its association with survival in colorectal cancer patients. Anticancer Res, 2002,22: 3205-3212.
  • 5Pavelic K, Krizanac S, Cacev T, et al. Aberration of FHIT gene is associated with increased tumor proliferation and decreased apoptosis-clinical evidence in lung and head and neck carcinomas. Mol Med, 2001,7: 442-453.
  • 6Wirtz HC, Muller W, Noguchi T, et al. Prognostic value and clinicopathological profile of microsatellite instability in gastric cancer. Clin Cancer Res, 1998,4: 1749-1754.
  • 7邓燕飞,田芳,卢永德,陈主初,谢鼎华,杨新明,袁建辉.鼻咽癌FRA3B脆性部位的微卫星不稳定性分析[J].中国耳鼻咽喉颅底外科杂志,2001,7(2):98-100. 被引量:3
  • 8殷德涛,董明敏,卢秀波.头颈部鳞状细胞癌组织中脆性组氨酸三联体基因的表达[J].郑州大学学报(医学版),2003,38(4):548-550. 被引量:12

共引文献13

同被引文献170

引证文献14

二级引证文献47

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