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胃癌患者唾液蛋白质指纹图谱诊断模型的初步研究 被引量:1

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摘要 目的:用蛋白质组学质谱技术筛选胃癌患者唾液蛋白质表达谱,寻找胃癌早期诊断方法。方法:采用蛋白质组学基质辅助激光解吸电离飞行时间质谱(MALDI-TOF-MS)得到相应的肽质指纹图谱技术,并运用弱阳离子磁珠(WCX)检测胃癌患者和健康者唾液,建立诊断模型。结果:1472.78Da、2936.49Da、6556.81Da和7081.17Da4个蛋白质荷比峰(M/Z)在胃癌和健康组比较中具有显著性差异。结论:初步建立了胃癌的唾液蛋白指纹质谱,为以后的胃癌蛋白质组学研究奠定了一定的基础。并建立了以1472.78Da、2936.49Da、6556.81Da和7081.17Da4个蛋白质峰为模型区分胃癌与非胃癌的唾液蛋白表达质谱诊断模型,为胃癌的早期临床诊断另辟蹊径,在筛选特异性生物标记物等方面也具有一定价值。
出处 《中国中医药科技》 CAS 2010年第4期338-339,共2页 Chinese Journal of Traditional Medical Science and Technology
基金 国家自然科学基金项目No.30640071
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