摘要
目的探讨肝炎后肝硬化早期癌变的血清蛋白质组学特点。方法应用表面增强激光解吸离子化飞行时间质谱仪(SELDI-TOF-MS)结合铜离子蛋白芯片检测62例肝炎后肝硬化与100例Ⅰ-Ⅱ期(T1-2N0M0)肝癌并肝硬化患者的血清蛋白质谱,采用Biomarker Wizard和Biomarker Patterns软件分析并建立分类树模型,并对分类树模型的诊断效能进行验证。结果对肝炎后肝硬化与肝癌并肝硬化患者的血清蛋白质谱进行分析,建立了由4种差异蛋白组成的分类树模型。采用该分类树模型在学习模式下对100例肝癌伴肝硬化、62例肝炎肝硬化患者进行分组,准确率为99.4%(161/162),诊断肝癌伴肝硬化的灵敏度和特异度分别为99.0%(99/100)、100.0%(62/62),在测试模式下对上述患者进行分组,其准确率为94.4%(153/162),诊断肝癌伴肝硬化的灵敏度和特异度分别为95.0%(95/100)、93.5%(58/62)。结论应用SELDI蛋白芯片技术筛选肝炎后肝硬化早期癌变具有方便、快捷、灵敏度高、特异性强的优点。
Objective To explore the serum proteomics characteristics of early carcerization of post-hepatitic cirrhosis.MethodsThe serum protein profiles were detected of 62 patients with post-hepatitic cirrhosis and 100 patients with hepatic carcinoma in Ⅰ-Ⅱ stage (T1-2N0M0) and cirrhosis by surface-enhanced laser desorption/ionization-time of flight-mass spectrometry (SELDI-TOF-MS) IMAC30-Cu2+ ProteinChip array (Ciphergen Biosystems Inc.,USA),the distinct proteins were analyzed and a classification tree model was established by using Biomarker Patterns software.The diagnostic efficacy of the model was blindly tested using the serum protein from both groups.ResultsThe serum protein profiles of post-hepatitic cirrhosis and hepatic carcinoma complicating with cirrhosis were analyzed and a classification tree model was established including 4 distinct proteins with different M/Z.In the training mode,the accuracy was 99.4% (161/162) on differential diagnosis to differentiate post-hepatitic cirrhosis and hepatic carcinoma complicating with cirrhosis,the sensitivity and specificity were 99.0% (99/100) and 100.0% (62/62),respectively,on the diagnosis of hepatic carcinoma complicating with cirrhosis.In the testing mode,the accuracy of differential diagnosis was 94.4% (153/162),the sensitivity and specificity were 95.0% (95/100) and 93.5% (58/62) on the diagnosis of hepatic carcinoma complicating with cirrhosis.ConclusionSELDI-TOF-MS ProteinChip technique is of convenient and rapid,and with high sensitivity and specificity on the diagnosis of early carcerization of post-hepatitic cirrhosis.
出处
《解放军医学杂志》
CAS
CSCD
北大核心
2010年第2期134-136,共3页
Medical Journal of Chinese People's Liberation Army
基金
全军医学科研“十一五”基金(08Z006)
关键词
肝硬化
肝炎后
癌
肝细胞
光谱法
质量
表面增强激光解吸离子化飞行时间
蛋白质组学
早期诊断
liver cirrhosis
posthepatitic
carcinoma
hepatocellular
spectrometry
mass
surface-enhanced laser desorption/ionization time-of-flight
proteomics
early diagnosis