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P53基因测序在恶性肿瘤诊断中的应用价值研究

A study of diagnostic value of P_ (53) gene sequencing in clinical malignant neoplasm

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【作者】 顾其华李玲芝舒畅杨志毅叶爱慧

【Author】 Gu Qihua△,Li Lingzhi,Shu Chang,et al.(△The Huaihua Afficiated Hospital of Hangyang Medical College, Huaihua 418000.)

【机构】 衡阳医学院附属怀化医院!湖南怀化418000

【摘要】 1目的 研究 P5 3基因测序在临床肿瘤诊断中的应用价值。2方法 采用聚合酶链式反应—直接测序方法对肺癌、胃癌、大肠癌、肝癌、乳腺癌、鼻咽癌、甲状腺癌、宫颈癌及支气管和胃粘膜非典型增生的活检标本 ,急、慢性白血病的外周血标本 ,肺癌胸水、肝癌腹水标本等临床肿瘤样本进行 P5 3基因外显子 5、6、7、8序列分析。 3结果 正常对照组未发现突变 ,所测的几种常见肿瘤样本的活检标本的突变率一般为 3 0 %~ 5 0 % ,胸、腹水标本突变率与相应肿瘤的活检标本相近 ,突变大多位于外显子 7、8。存在突变的病例 2年病死率明显升高。 4结论  P5 3基因测序在常见恶性肿瘤诊断和判断预后等有一定的参考价值。

【Abstract】 Objective To study the value of p_ 53 gene sequencing in clinical diagnosis of malignant cancers.Methods Polymerase chain reaction (PCR) and directy sequencing methods was used to analyse exons 5,6,7,8 of human P_ 53 gene.Over 200 biopsys of patient of lung cancer (LC),gastric cancer(GC),large intestic cancer(LIC),hepatic cell cancer(HCC),breast cancer(BC),nasopharyngeal cancer(NC),thyroid cancer(TC),cervical cancer(CC),pleura effusion,peritoneal effusion of carcinoma were detected.P_ 53 gene mutations in patients with mucosal atypical hyperplasia of bronchus and stomach were also examined.Results There was no mutation in blood samples of normal person.It was found that there about 30%~50% cases of LC,GC,LIC,HCC,BC,NC,TC are P_ 53 mutations in their biopsy,the positive mutation rate of in pleura effusion or in peritoneal effusion samples was nearly equal to that in biopsy.It also found that the two years’ mortality of patients with P_ 53 mutation were arised.Conclusion P_ 53 gene sequencing is valuable in clinical genetic diagnosis and prognosis.

【关键词】 P53基因基因突变测序
【Key words】 CarcinomaP_ 53 geneGene mutationSeqencing
  • 【文献出处】 华北煤炭医学院学报 ,Journal of North China Coal Medical College , 编辑部邮箱 ,2001年03期
  • 【分类号】R730.4
  • 【下载频次】95
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