title: Establishment of Magnetic Microparticles-Assisted Time-Resolved Fluoroimmunoassay for Determinating Biomarker Models in Human Serum.
abstract: In order to early screen and detect suspected biomarkers from pathogens and the human body itself, tracers or reaction strategies that can act as signal enhancers have been proposed forth at purpose. In this paper, we discussed the applicability of magnetic microparticles-assisted time-resolved fluoroimmunoassay (MMPs-TRFIA) for sensitive determination of potential analytes. Hepatitis B e antigen, antibody to hepatitis B surface antigen and free triiodothyronine were used as biomarker models to explore the reliability of the method. By coupling with bioprobes, MMPs were used as immunoassay carriers to capture target molecules. Under optimal condition, assay performance, including accuracy, precision and specificity, was outstanding and demonstrated satisfactory. To further evaluate the performance of the MMPs-TRFIA in patients, a total of 728 serum samples from hospital were analyzed for three biomarkers in parallel with the proposed method and chemiluminescence immunoassay kit commercially available. Fairly good agreements are obtained between the two methods via data analysis. Not only that but the reliability of MMPs-TRFIA has also been illustrated by three different reaction models. It is confirmed that the novel method modified with MMPs has been established and showed great potential applications in both biological detection and clinical diagnosis, including big molecule protein and low molecular weight haptens.
authors.affiliation: State Key Laboratory of Organ Failure Research, Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou, Guangdong, P. R. China.
authors.forename: Zhi-Qi
authors.initials: ZQ
authors.lastname: Ren
authors.affiliation: State Key Laboratory of Organ Failure Research, Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou, Guangdong, P. R. China.
authors.forename: Tian-Cai
authors.initials: TC
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Organ Failure Research, Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou, Guangdong, P. R. China.
authors.forename: Si-Hui
authors.initials: SH
authors.lastname: Zhuang
authors.affiliation: State Key Laboratory of Organ Failure Research, Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou, Guangdong, P. R. China.
authors.forename: Guan-Feng
authors.initials: GF
authors.lastname: Lin
authors.affiliation: State Key Laboratory of Organ Failure Research, Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou, Guangdong, P. R. China.
authors.forename: Jing-Yuan
authors.initials: JY
authors.lastname: Hou
authors.affiliation: State Key Laboratory of Organ Failure Research, Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou, Guangdong, P. R. China.
authors.forename: Ying-Song
authors.initials: YS
authors.lastname: Wu
mesh_terms: D015415:Biomarkers / Q000097:blood*; D005455:Fluorescent Antibody Technique; D006801:Humans; D008280:Magnetics; D008863:Microspheres; D008954:Models, Biological; D015203:Reproducibility of Results
chemical_list: D015415:Biomarkers