高级搜索

食管癌P16基因突变

王克文, 谢儒全, 邓长生

王克文, 谢儒全, 邓长生. 食管癌P16基因突变[J]. 肿瘤防治研究, 1999, 26(3): 174-176.
引用本文: 王克文, 谢儒全, 邓长生. 食管癌P16基因突变[J]. 肿瘤防治研究, 1999, 26(3): 174-176.
Wang Kewen, Xie Ruquan, Deng Changsheng. Mutation Frequency of the P16 Gene in Primary Esophageal Squamous Cell Carcinomas[J]. Cancer Research on Prevention and Treatment, 1999, 26(3): 174-176.
Citation: Wang Kewen, Xie Ruquan, Deng Changsheng. Mutation Frequency of the P16 Gene in Primary Esophageal Squamous Cell Carcinomas[J]. Cancer Research on Prevention and Treatment, 1999, 26(3): 174-176.

食管癌P16基因突变

Mutation Frequency of the P16 Gene in Primary Esophageal Squamous Cell Carcinomas

  • 摘要: 目的:探讨P16基因与原发性食管癌的关系,了解该基因突变在原发性食管癌发生、发展中的作用,方法:采用多聚合酶链反应结合单链构象多态性分析(PCR-SSCP),分析了22例原发性食管鳞状上皮癌P16基因第二外显子(exon2)的基因结构变化。结果:40.9%(9/22)原发性食管鳞状上皮癌P16基因exon2发生了突变,而对照组22例正常组织中无一例表现有突变,其中低分化癌的突变率高于高、中分化癌(P=0.038),临床Ⅳ期的突变率高于临床Ⅱ、Ⅲ期(P=0.042)。结论:临床上检测原发性食管鳞状上皮癌有否P16基因exon2突变,有助于识别恶性程度较高的食管癌,并可用于估计食管癌患者预后。

     

    Abstract: The P16 gene mapped on the short arm of chromosome 9(9p 21 ) was found to delete or mutate in various primary tumors and in a large number of transformed cell lines.To study the involvement of the p16 tumor suppressor gene in primary esophageal squamous cell carcinomas,we used the PCR-SSCP method to examine mutation frequency of the P16 gene exon2 in 22 primary esophageal squamous cell carcinomas and their corresponding normal tissues.Mutation of the P16 gene exon2 was observed in 9 out of 22 primary esophageal squamous carcinomas.There was no mutation in the normal tissues.The mutation rate of the P16 gene exon2 was higher in poorly differenciated squamous cell carcinomas than in well differenciated cancers ( P =0 038).The same result was observed between clinical stage Ⅳ and clinical stage Ⅱ、Ⅲ( P =0 042).It is suggested that mutation of the P16 gene exon2 is involved in most primary esophageal squamous cell carcinomas and that P16 gene mutation plays a critical role in the esophageal tumorigenesis.

     

  • 1  Rush E.B.,Abouezzi Z.,Borgen P.I.,et al.Analysis of MTS1/CDK4 in female breast carcinomas.Cancer lett,1995,89(2):223~226
    2  Kai M..Arakaawa H.,Sugimoto Y.,et al.Infrequent Somatic mutation of the MTS1 gene in primary bladder carcinomas.Jpn.J.Camcer res,1995,86(3):249~251
    3  Packenham J.P.,Tayor J.A.,white C.M.,et al.Homozygous deletions at chromosome 9p21 and mutation analysis of P16 and P15 in microdissected primary non-small cell lung cancers.Clin.Canc.Res.,1995,1(7):687~690
    4  Cairns P.,Tokino K.,Eby Y.,et al.Localization of tumor suppressor loci on chromosome 9 in primary human renal cell carcinomas.Cancer res,1995,55(2):224~227
    5  Ohta M.,Nagai H.,Shimizu M.,et al.Earity of somatic and germline mutations of the cyclin-dependent kinase 4 inhibitor gene,CDK4I,in melanoma.Cancer res,1994,54(20):5269~5272
    6  Liu Q.,Yan Y.X.,Mcclute M.,et al.MTS-1 (CDKN2) tumor suppressor gene deletions are a frequent event in esoph-agus squamous cancer and pancreatic adenocarcinoma cell lines.Oncogene,1995,10(3):619~622
    7  Zhang S.Y.,Klein-Szanto A.J.P.,Sauter E.R.,et al.Higher frequency of alterations in the P16/CDKN2 gene in squamous cell carcinoma cell lines than in primary tumors of the head and neck.Cancer res,1994,54(19):5050~5053
    8  Hiroyasu Igaki.,Hiroki Sasaki,Tatsuga Kishi.,et al.Highly frequent homozygous deletion of the P16 gene in esophageal cancer cell lines.-Biochem.Biophys rescommun,1994,203(2):1090~1095
    9  Hiroyasu Igaki,Hiroki Sasaki,Yuji Tachimori.,et al.Mutation frequency of the P16/CDKN2 gene in primary cancers in the upper digestive tract.Cancer res,1995,55:3421~3423
    10  Takahiro Mori,koh Miura,Takahisa Aoki,et al.Frequent Somatic mutation of the MTS1/CDK4I(Multiple Tumor Suppressor/Cyelin-dependent Kinase 4 Inhibitor)gene in esophageal squamous cell carcinoma.Cancer res,1994,54(13):3396~3397
    11  Jean Marx.New tumor Suppressor may rival P53.Science,1994,264(15):344~345
    12  Li J.,Mori M.,Yang Y.,et al.Multiple tumor suppressor 1 gene and esophageal carcinoma.Int.J.Oncol,1995,7(2):257~260
    13  Xiaoling Zhou,Lila Tarmin,Jing Ying Yin,et al.The MTS1 gene is frequently mutated in primary human esophageal tumors.Oncogene,1994,9:3737~3741
计量
  • 文章访问数:  1060
  • HTML全文浏览量:  36
  • PDF下载量:  303
  • 被引次数: 0
出版历程
  • 刊出日期:  1999-06-04

目录

    /

    返回文章
    返回
    x 关闭 永久关闭