【佳学基因检测】p53在胃癌中的表达与预后
基因检测的费用是多少详解
讨化肿瘤分子诊断与基因分析《肿瘤靶向药物选择的基因突变标准》《Int J Cancer》在. 1992 Apr 1;50(6):859-62.发表了一篇题目为《p53在胃癌中的表达与预后》癌症致病基因深度研究文章。该研究由H M Martin , M I Filipe, R W Morris, D P Lane, F Silvestre等完成。评估和介绍了P53A基因检测的专业性和价值开发方式方法,进一步强调对关键基因进行深度检测的重要性。
肿瘤遗传力大小分析研究内容关键词:
P53基因突变,消化科,生存期,中位生存率
肿瘤靶向治疗基因检测临床应用结果
肿瘤科、消化科的肿瘤基因解码表明,基因检测已在许多恶性肿瘤中发现 p53 基因异常。据肿瘤致病基因鉴定基因解码,超过一半的结直肠癌、肺癌、乳腺癌和肝细胞癌病例存在异常。正常基因充当隐性癌基因,而突变将表观功能改变为显性癌基因的功能。在这项研究中,使用多克隆抗 p53 抗体 (CM-I),将 3 层免疫过氧化物酶技术应用于来自 125 例胃癌的常规固定和石蜡包埋的组织切片。P53的肿瘤致病性研究发现这些癌中有 57% 表达高水平的 p53 蛋白(阳性核染色)。生存分析显示肿瘤的 p53 状态与诊断后患者的生存时间之间存在密切关联(p = 0.02,Mantel-Cox 检验);死亡的优势比,2.09(95% 置信区间 1.02 至 4.25)。表达 p53 的肿瘤患者的 5 年生存率为 24%,而非表达 p53 的肿瘤患者的 5 年生存率为 56%(中位生存时间分别为 13 个月和 102 个月)。
肿瘤发生与复发转移国际数据库描述:
Abnormalities of the p53 gene have been identified in many malignancies, with reports of aberration in over half of colorectal, lung, breast and hepatocellular carcinoma cases. The normal gene acts as a recessive oncogene, while mutations change the apparent function to that of a dominant oncogene. In this investigation a 3-layered immunoperoxidase technique was applied to routinely fixed and paraffin-embedded tissue sections from 125 gastric carcinomas, using a polyclonal anti-p53 antibody (CM-I). We found that 57% of these carcinomas expressed high levels of p53 protein (positive nuclear staining). Survival analysis revealed a strong association between p53 status of the tumour and patient survival time after diagnosis (p = 0.02, Mantel-Cox Test); odds ratio of death, 2.09 (95% confidence interval 1.02 to 4.25). The 5-year survival of patients with p53-expressing tumours was 24%, compared with 56% for those non-p53-expressing tumours (the median survival times were 13 and 102 months, respectively).
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