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Fingerprint pattern analysis of glioma CSF protein with mass spectrometry and its clinical significance
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF NEUROSURGERY
- Issue:
- 5
- DOI:
- 10.3760/j.issn:1001-2346.2004.05.004
- Key Word:
- SELDI-TOF;决策树;蛋白指纹图;胶质瘤;诊断
Abstract： 目的建立区分胶质瘤和非肿瘤脑脊液的蛋白指纹图诊断模型,利用蛋白组学技术寻找新的肿瘤标志物.方法收集胶质瘤和轻中度脑外伤病人(共46份)的脑脊液,利用表面加强解析/电离吸收-时间飞行质谱(surface-enhanced laser desorption/ionization time-of-flight mass spectrometry,SELDI-TOF-MS)检测蛋白芯片,得出蛋白指纹图,将46份标本随机分为训练组30例(12例胶质瘤,18例脑外伤)和盲法测试组16例(7例胶质瘤,9例脑外伤),运用Ciphergen公司提供的BiomarkerPatternsTMSoftware(一种决策树软件)分析收集的数据.结果(1)得到胶质瘤与非肿瘤的蛋白指纹图;(2)利用训练集得出基于决策树的脑脊液蛋白模型,测试集盲法检测,胶质瘤诊断的敏感性和特异性分别为100%(8/8)和88.9%(8/9).结论建立了胶质瘤的脑脊液蛋白指纹图谱,为以后的胶质瘤蛋白质组学研究奠定了一定基础;建立了区分胶质瘤与非肿瘤的脑脊液蛋白表达质谱诊断模型,盲法检验敏感性和特异性达到100%和88.9%,为胶质瘤的临床诊断提供了一条崭新的途径和方法.
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