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流式荧光法检测多肿瘤标志物性能评估及临床应用 被引量:4

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摘要 目的建立检测人血清多种肿瘤标志物的流式荧光法并评估方法学性能。方法将抗AFP、CEA、CA125、CA242、NSE、free-β-hCG、cyfra 21-1、F-PSA、T-PSA、CA15-3、SCC、CA72-4、CA19-9抗体包被于Luminex荧光编码微球,用流式荧光法检测血清中上述标志物,并进行方法学与临床应用评价。结果与ELISA试剂盒相比,建立的流式荧光法线性范围较宽,灵敏度与电化学发光法较一致。各个指标的批内变异系数(CV)为(6.10±2.35)%,批间CV为(6.61±2.41)%;平均回收率均>90%。干扰实验结果表明,200 mg/mL三酰甘油、10 mg/mL胆红素和10 mg/mL血红蛋白对各指标检测均无显著影响且不受类风湿因子(RF)、异嗜性抗体、人抗动物抗体(HAAAs)及补体等干扰;有效指示AFP高浓度样本、避免hook效应导致的假阴性;临床实验结果表明,该法与电化学发光、ELISA法相关性良好。结论流式荧光法可实现多肿瘤标志物并行测试,方法学性能良好,可以提高检测效率。
出处 《临床检验杂志》 CAS CSCD 北大核心 2012年第12期960-963,共4页 Chinese Journal of Clinical Laboratory Science
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