alexa Development of a Dual-Label Time-Resolved Fluorescence Immunoassay (TRFIA) for Screening of Bladder Cancer based on Simultaneous Detection of BLCA-4 and NMP52 in Urine | Abstract
ISSN: 2155-9821

Journal of Bioprocessing & Biotechniques
Open Access

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Research Article

Development of a Dual-Label Time-Resolved Fluorescence Immunoassay (TRFIA) for Screening of Bladder Cancer based on Simultaneous Detection of BLCA-4 and NMP52 in Urine

Xiaozhu Liu1, Yinfeng Li1, Yan Wang2, Wenqiao Sun3, Laiqing Li4 and Licheng Zhang3*

1Guizhou Institute of Technology, Guiyang, 550000, China

2Shangdong Medicine Technician College, Tai’an, 271000, Shandong, China

3Cancer Center of the 88 Hospital of People’s Liberation Army, Tai’an, 271000, Shandong, China

4Guangzhou Youdi Biotechnology Company, Guangzhou, 510000, Guangdong, China

*Corresponding Author:
Licheng Zhang
PhD, Cancer Center of the 88 Hospital of People’s Liberation Army
Humen Road 6, Tai’an, 271000, Shandong, China
Tel: +8602022056980
Fax: +8602022056980
E-mail: [email protected]

Received Date: March 27, 2017; Accepted Date: April 10, 2017; Published Date: April 12, 2017

Citation: Liu X, Li Y, Wang Y, Sun W, Li L, et al. (2017) Development of a Dual- Label Time-Resolved Fluorescence Immunoassay (TRFIA) for Screening of Bladder Cancer based on Simultaneous Detection of BLCA-4 and NMP52 in Urine. J Bioprocess Biotech 7:303. doi: 10.4172/2155-9821.1000303

Copyright: © 2017 Liu X, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Bladder cancer is a heterogeneous disease and occupies highest incidence in developed country. Time-resolved fluoroimmunoassays (TRFIA) is a new detection technique with a feature of sensitive, simple and inexpensive. The aim of this study is to establish a dual-label TRFIA for the simultaneous detection of BLCA-4 and NMP52 in urine in a single run. The sandwich immunoassay was used to detect the concentration of BLCA-4 and NMP52 in urine. BLCA- 4 and NMP52 in urine were captured by anti-BLCA-4 and anti-NMP52 antibodies immobilized on microtiter wells, and then banded together with another anti-BLCA-4 and anti-NMP52 labeled with europium(III) Sm3+ and samarium(III) Eu3+ chelates, followed by fluorescence measurement using time resolved fluorometry. To assess the performance of this assay, clinical urine samples were used, and then commercialized kits were compared. The sensitivity for BLCA-4 and NMP52 detection of this assay were 2 U/mL (dynamic range, 5-300 U/L) and 1 μg/ml (dynamic range, 2-150 μg/ml) respectively. The correlation coefficients (R) between the present dual-label TRFIA and commercially available kits were high. R-values were 0.99 for BLCA-4 and NMP52. The cross-reactivity seems not to influence the results. The present dual-label TRFIA, allowing the simultaneous detection ofBLCA-4 and NMP52, has high sensitivity, specificity, and accuracy in clinical sample analysis. Therefore, it has good prospects of application.

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