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南京医科大学学报(自然科学版) 第41卷第1期
· 54 · Journal of Nanjing Medical University(Natural Sciences) 2021年1月
·基础研究·
胎盘生长因子荧光免疫层析法检测的临床性能评估
马锦琪 ,李 鹰 ,黄建荣 ,薛一峰 ,许亚丰 ,王春新 2*
2
2
1
2
1
南京医科大学附属无锡人民医院产科,医学检验科,江苏 无锡 214023
1 2
[摘 要] 目的:建立胎盘生长因子(placental growth factor,PlGF)荧光免疫层析的检测方法,在此基础上进行分析性能与临床
性能评价。方法:鼠抗人PlGF单抗荧光标记、羊抗人PlGF多抗包被硝酸纤维素膜,建立PlGF的荧光免疫层析检测方法,并对
其线性范围、准确度、重复性等分析性能进行评价;以电化学发光法为对照,采用136例孕妇血清进行临床性能评价。结果:荧
光免疫层析检测方法的线性范围为 20.0~9 000.0 pg/mL,准确度为 97.98%,重复性、变异系数 CV 为 3.14%(500.0 pg/mL)和
2.98%(5 000.0 pg/mL);与电化学发光法具有良好的线性相关性:y=1.032x-5.002(r=0.991);Bland⁃Altman统计分析显示,荧光
免疫层析法检测结果的平均值略高于电化学发光法,但差异无统计学意义(P>0.05)。结论:PlGF荧光免疫层析检测方法的分
析性能与临床性能较佳,适合临床应用。
[关键词] 胎盘生长因子;荧光免疫层析;子痫前期
[中图分类号] R446.6 [文献标志码] A [文章编号] 1007⁃4368(2021)01⁃054⁃06
doi:10.7655/NYDXBNS20210110
Performance evaluation of placental growth factor by fluorescence immunochromatography
1 1 2 2 2 2*
MA Jinqi ,LI Ying ,HUANG Jianrong ,XUE Yifeng ,XU Yafeng ,WANG Chunxin
2
1 Department of Gynecology and Obstetrics,Department of Clinical Laboratory,Wuxi People’s Hospital Affiliated to
Nanjing Medical University,Wuxi 214023,China
[Abstract] Objective:To establish a fluorescence immunochromatography for placental growth factor(PlGF),evaluate the analysis
performance and clinical performance. Methods:Using fluorescent microsphere conjugated ⁃ mouse ⁃ anti ⁃ human PlGF monoclonal
antibody,sheep anti⁃human PlGF polyclonal antibody coated on NC membrane,to establish a fluorescence immunochromatography
assay for PlGF,and evaluate the analysis performance,such as linear range,accuracy,repeatability. Using serums of 136 pregnant
women,electrochemiluminescence as control,to evaluate the clinical performance. Results:The linear range of fluorescence
immunochromatography assay for PlGF was 20.0~9 000.0 pg/mL,accurate was 97.98%,repeatability CV was 3.14%(500.0 pg/mL)and
2.98%(5 000.0 pg/mL). The assay had good correlation with electrochemiluminescence:y=1.032x-5.002(r=0.991). Bland⁃Altman
statistical analysis showed that the average value of fluorescence immunochromatography was slightly higher than that of
electrochemiluminescence,without significant difference(P > 0.05). Conclusion:The fluorescence immunochromatography for PlGF
has good analysis performance and clinical performance. The assay is suitable for clinical application.
[Key words] placental growth factor;fluorescence immunochromatography;pre⁃eclampsia
[J Nanjing Med Univ,2021,41(01):054⁃058,064]
孕妇血清中的胎盘生长因子(placental growth 浓度的变化与孕妇罹患子痫前期的风险密切相关。
factor,PlGF)是首个经过大规模临床验证的、可用于 目前,PlGF的检测技术有时间分辨荧光免疫分
孕妇子痫前期预测及诊断的生物标志物 [1-2] ,PlGF 析、微流控、电化学发光法等 [3-4] ,这些技术都存在操
作复杂或成本高昂等缺点。基于荧光免疫层析的
[基 金 项 目] 江 苏 省“333 工 程 高 层 次 人 才 培 养 工 程 ”
检测方法操作便捷,成本低廉,可实现在临床门诊
(PYJF201808)
随到随诊,方便快速预测子痫前期的风险,具有较
∗
通信作者(Corresponding author),E⁃mail:wangcx_wxph@163.
com 高的临床应用价值。