Department of Molecular Cell Biology Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands.
Clin Biochem. 2011 Oct;44(14-15):1241-6. doi: 10.1016/j.clinbiochem.2011.06.983. Epub 2011 Jul 6.
The development of a cytokine detection assay suitable for detection of multiple biomarkers for improved diagnosis of mycobacterial diseases.
A lateral flow (LF) assay to detect IL-10 was developed utilizing the up-converting phosphor (UCP) reporter-technology. The assay was evaluated using blood samples of leprosy patients. Multiplex applications were explored targeting: 1) IL-10 and IFN-γ in assay buffer; 2) IL-10 and anti-phenolic glycolipid (PGL-I) antibodies in serum from leprosy patients.
Detection of IL-10 below the targeted level of 100pg/mL in serum was shown. Comparison with ELISA showed a quantitative correlation with R(2) value of 0.92. Multiplexing of cytokines and simultaneous detection of cytokine and antibody was demonstrated.
The UCP-LF IL-10 assay is a user-friendly, rapid alternative for IL-10 ELISAs, suitable for multiplex detection of different cytokines and can be merged with antibody-detection assays to simultaneously detect cellular- and humoral immunity.
开发一种适用于检测多种生物标志物的细胞因子检测分析方法,以提高分枝杆菌病的诊断水平。
利用上转换磷(UCP)报告物技术开发了侧向流动(LF)检测分析方法来检测白细胞介素-10(IL-10)。使用麻风病患者的血液样本对该分析方法进行了评估。探索了针对以下目标的多重应用:1)在检测缓冲液中检测 IL-10 和干扰素-γ(IFN-γ);2)在麻风病患者血清中检测 IL-10 和抗酚性糖脂(PGL-I)抗体。
在血清中检测到低于目标水平 100pg/mL 的 IL-10。与 ELISA 的比较显示具有定量相关性,R²值为 0.92。已证明细胞因子的多重化以及细胞因子和抗体的同时检测。
UCP-LF IL-10 分析方法是 IL-10 ELISA 的一种用户友好、快速的替代方法,适用于不同细胞因子的多重检测,并且可以与抗体检测分析方法合并,以同时检测细胞和体液免疫。