1
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Xu S, Liu H, Bai Y. Highly sensitive and multiplexed mass spectrometric immunoassay techniques and clinical applications. Anal Bioanal Chem 2022; 414:5121-5138. [PMID: 35165779 DOI: 10.1007/s00216-022-03945-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/17/2022] [Accepted: 01/31/2022] [Indexed: 11/29/2022]
Abstract
Immunoassay is one of the most important clinical techniques for disease/pathological diagnosis. Mass spectrometry (MS) has been a popular and powerful readout technique for immunoassays, generating the mass spectrometric immunoassays (MSIAs) with unbeatable channels for multiplexed detection. The sensitivity of MSIAs has been greatly improved with the development of mass labels from element labels to small-molecular labels. MSIAs are also expended from the representative element MS-based methods to the laser-based organic MS and latest ambient MS, improving in both technology and methodology. Various MSIAs present high potential for clinical applications, including the biomarker screening, the immunohistochemistry, and the advanced single-cell analysis. Here, we give an overall review of the development of MSIAs in recent years, highlighting the latest improvement of mass labels and MS techniques for clinical immunoassays.
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Affiliation(s)
- Shuting Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.,Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.,Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Huwei Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Yu Bai
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
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2
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Xu Y, Wang Q, Hou G, Yao H, Zhao H. A dual-label time-resolved fluorescence immunoassay for screening of osteoporosis based on simultaneous detection of C-terminal telopeptide (β-CTX) and aminoterminal propeptide (P1NP) of type I procollagen. Scandinavian Journal of Clinical and Laboratory Investigation 2019; 79:80-85. [PMID: 30638079 DOI: 10.1080/00365513.2018.1555857] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Osteoporosis is a disease where increased bone weakness increases the risk of a broken bone. Until a broken bone occurs, there are typically no symptoms. Osteoporosis affects more than 75 million people in the United States, Europe and Japan. The diagnosis of osteoporosis is primarily determined by measuring bone mineral density using dual-energy X-ray absorptiometry, but for men under 50 years of age, premenopausal women should not be made on the basis of densitometric criteria alone. Bone biomarkers are a useful tool in detecting osteoporotic. A two-step dual-label time-resolved fluorescence immunoassay (TRFIA) was developed for the simultaneous detection of serum C-terminal telopeptide (β-CTX) and amino-terminal propeptide (P1NP) of Type I procollagen in a single run. The performance of this assay was first evaluated using clinical serum samples, and then compared with commercialized kits. The sensitivity of this assay for β-CTX was 1 ng/L (dynamic range, 0-1000 ng/L), and the sensitivity for P1NP detection was 1 μg/L (dynamic range, 1-1000 μg/L). High correlation coefficients (R) were obtained between the present dual-label TRFIA and commercially available kits (R = 0.99 for β-CTX and P1NP). The present dual-label TRFIA has high sensitivity, specificity and accuracy in clinical sample analysis. It is a good alternative to the single-label diagnostic methods.
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Affiliation(s)
- Yichun Xu
- a Department of Orthopaedics, 3rd Affiliated Hospital , Sun Yat-sen University , Guangzhou , China
| | - Qiyou Wang
- a Department of Orthopaedics, 3rd Affiliated Hospital , Sun Yat-sen University , Guangzhou , China
| | - Gang Hou
- a Department of Orthopaedics, 3rd Affiliated Hospital , Sun Yat-sen University , Guangzhou , China
| | - Hui Yao
- a Department of Orthopaedics, 3rd Affiliated Hospital , Sun Yat-sen University , Guangzhou , China
| | - Huiqing Zhao
- a Department of Orthopaedics, 3rd Affiliated Hospital , Sun Yat-sen University , Guangzhou , China
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3
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Simultaneous quantitation of carbohydrate antigen 125 and carcinoembryonic antigen in human serum via time-resolved fluoroimmunoassay. Clin Chim Acta 2018; 483:222-226. [DOI: 10.1016/j.cca.2018.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 03/16/2018] [Accepted: 05/01/2018] [Indexed: 12/15/2022]
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4
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Babamiri B, Hallaj R, Salimi A. Solid surface fluorescence immunosensor for ultrasensitive detection of hepatitis B virus surface antigen using PAMAM/CdTe@CdS QDs nanoclusters. Methods Appl Fluoresc 2018; 6:035013. [PMID: 29848807 DOI: 10.1088/2050-6120/aac8f7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In the present study, we constructed an ultrasensitive solid surface fluorescence-immunosensor based on highly luminescent CdTe@CdS-PAMAM structures as nanoprobe for determination of HBsAg by monitoring fluorescence intensity. This strategy was achieved by using PAMAM as a signal amplifier; the PAMAM dendrimer with the many functional amine groups can amplify the fluorescence signal of QDs by covalent attachment of CdTe@CdS on PAMAM and hence, improve the sensitivity of the proposed method significantly. A sandwich type immunosensor was formed after the addition of HBsAg and the PAMAM-QD-Ab2, respectively. Under optimal conditions, the designed immunosensor demonstrates a good analytical performance for the HBsAg detection in an excellent linear range from 5 fg ml-1 to 0.15 ng ml-1 with the detection limit (LOD) of 0.6 fg ml-1 at a S/N ratio of 3. In addition, the analysis of human serum samples shows that the fluorescent immunoassay has the great potential for early diagnosis of hepatitis B and can be used for the detection of other tumor markers in clinical applications.
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Affiliation(s)
- Bahareh Babamiri
- Department of Chemistry, University of Kurdistan, 66177-15175, Sanandaj, Iran
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5
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A time-resolved fluoroimmunoassay to assay the rabies virus glycoprotein: application for estimation of human rabies vaccine potency. Sci Rep 2017; 7:7288. [PMID: 28779162 PMCID: PMC5544697 DOI: 10.1038/s41598-017-07687-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 06/29/2017] [Indexed: 02/06/2023] Open
Abstract
Replacement of the in vivo rabies vaccine potency test (NIH test) by in vitro methods had been discussed by several researcher including WHO expert working groups. In this paper, a time-resolved fluoroimmunoassay (TRFIA) for the assay of rabies virus glycoprotein in rabies vaccine was first established to estimate the rabies vaccine potency by using specific monoclonal antibody that only recognized the native, trimeric and immunogenic form of rabies virus glycoprotein. Potency of the rabies virus glycoprotein was assayed with satisfactory performance under optimal conditions, and the method demonstrated satisfactory results when applied in practical samples. The correlation coefficient of potency values obtained from the present TRFIA and ELISA was 0.912, and 0.903 for those from the present TRFIA and NIH test. These preliminary results confirmed that this TRFIA can replace ELISA with higher performance, and could be a promising replacement of the NIH test. Based upon these results, the present TRFIA seemed to be a convenient tool for evaluating rabies vaccine potency and its products at different stages accordingly.
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6
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A dual-label time-resolved fluorescence immunoassay (TRFIA) for screening of Coronary atherosclerosis based on simultaneous detection of Lp-PLA2 and HsCRP. Immunol Lett 2017; 182:12-17. [DOI: 10.1016/j.imlet.2016.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 12/22/2016] [Indexed: 12/21/2022]
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7
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Sun Y, Xie J, Peng T, Wang J, Xie S, Yao K, Wang C, Sun S, Xia X, Jiang H. A New Method Based on Time-Resolved Fluoroimmunoassay for the Detection of Streptomycin in Milk. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0797-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Wang L, Xu M, Huang R, Chang X, Chen C, Li L, Zhang Z, Han Y. A Dual-Label Time-Resolved Fluorescence Immunoassay for the Simultaneous Determination of Cardiac Troponin T and Myoglobin. SLAS Technol 2016; 22:130-135. [PMID: 27879408 DOI: 10.1177/2211068216680317] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The aim of this study was to establish a dual-label time-resolved fluorescence immunoassay (TRFIA) for the simultaneous determination of cardiac troponin T (cTnT) and myoglobin (MYO) for the early diagnosis of acute myocardial infarction. The sandwich immunoassay was used to detect the concentration of cTnT and MYO in serum. cTnT and MYO in serum were captured by anti-cTnT and anti-MYO antibodies immobilized on microtiter wells and then banded together with another anti-cTnT and anti-MYO labeled with europium(III) Sm3+ and samarium(III) Eu3+ chelates, followed by fluorescence measurement using time-resolved fluorometry. The performance of this TRFIA was evaluated using the clinical serum and compared with the commercial assays. The linear correlation coefficients ( R2) of the cTnT and MYO standard curves were 0.9993 and 0.9995, respectively. The sensitivity for cTnT detection was 2.21 pg/mL (linear dynamic range was 3.24-963.71 pg/mL), and the average recovery was 100.57%. The sensitivity for MYO detection was 3.24 ng/mL (linear dynamic range was 4.95-976.85 ng/mL), and the average recovery was 99.79%. High correlation coefficients ( R2) were obtained between the commercial assays and dual-label TRFIA ( R2 = 0.999). The present dual-label TRFIA has high sensitivity, specificity, and accuracy in clinical sample analysis. It is a good alternative to the single-label diagnostic methods.
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Affiliation(s)
- Ling Wang
- 1 Department of ICU, Shenzhen Chinese Traditional Medical Hospital, Shenzhen, China
| | - Mujuan Xu
- 1 Department of ICU, Shenzhen Chinese Traditional Medical Hospital, Shenzhen, China
| | - Ruolan Huang
- 1 Department of ICU, Shenzhen Chinese Traditional Medical Hospital, Shenzhen, China
| | - Xiao Chang
- 1 Department of ICU, Shenzhen Chinese Traditional Medical Hospital, Shenzhen, China
| | - Cuicui Chen
- 2 Guangzhou Youdi Biotechnology Company, Guangzhou, China
| | - Laiqing Li
- 2 Guangzhou Youdi Biotechnology Company, Guangzhou, China
| | - Zhong Zhang
- 1 Department of ICU, Shenzhen Chinese Traditional Medical Hospital, Shenzhen, China.,3 Department of Cardiovascular, Shenzhen Chinese Traditional Medical Hospital, Shenzhen, China
| | - Yue Han
- 1 Department of ICU, Shenzhen Chinese Traditional Medical Hospital, Shenzhen, China
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9
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Liang RL, Yang YS, Zhou JW, Liu TC, Xu XP, Liang QN, Chen ZH, Dong ZN, Wu YS. Dual-Labeled Time-Resolved Immunofluorometric Assay for the Simultaneous Quantitative Detection of Hepatitis B Virus Antigens in Human Serum. J Fluoresc 2016; 27:309-316. [PMID: 27878521 DOI: 10.1007/s10895-016-1959-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 10/19/2016] [Indexed: 12/27/2022]
Abstract
In this paper, a novel time-resolved fluorescence immunoassay (TRFIA) is described that allows the simultaneous quantitative detection of hepatitis B virus surface antigen (HBsAg) and hepatitis B e antigen (HBeAg) in human serum to aid the diagnosis and monitoring of hepatitis B virus infection. The proposed method was developed based on a two-step sandwich immunoassay protocol in which monoclonal antibodies against HBsAg and HBeAg were co-coated in 96 microtitration wells, then tracer polyclonal antibodies against HBsAg labeled with samarium and tracer monoclonal antibodies against HBeAg labeled with europium chelates were used for detection. The detection range was 0.1-150 IU/mL for HBsAg and 0.5-160 PEIU/mL for HBeAg, and the detection limits were 0.03 IU/L and 0.09 PEIU/ml, respectively. The intra- and inter-assay coefficients of variation were below 8 % for both virus antigens. The dilution linearity and accuracy of the assay were satisfactory. No statistically significant differences were observed in sensitivity or specificity for the serum samples between the dual-label TRFIA and a commercial single-label TRFIA. These results demonstrate that an effective, reliable and convenient HBsAg/HBeAg dual-label TRFIA was successfully developed that may be clinically applicable for blood screening to monitor the course of hepatitis B virus infection and predict treatment responses.
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Affiliation(s)
- Rong-Liang Liang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Yun-Sen Yang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Jian-Wei Zhou
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Tian-Cai Liu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Xu-Ping Xu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Qian-Ni Liang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Zhen-Hua Chen
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Zhi-Ning Dong
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Ying-Song Wu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China.
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10
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Immunochromatographic assay for quantitative and sensitive detection of hepatitis B virus surface antigen using highly luminescent quantum dot-beads. Talanta 2015; 142:145-9. [DOI: 10.1016/j.talanta.2015.04.058] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 04/18/2015] [Accepted: 04/20/2015] [Indexed: 11/22/2022]
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11
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Liang RL, Xu XP, Liu TC, Zhou JW, Wang XG, Ren ZQ, Hao F, Wu YS. Rapid and sensitive lateral flow immunoassay method for determining alpha fetoprotein in serum using europium (III) chelate microparticles-based lateral flow test strips. Anal Chim Acta 2015; 891:277-83. [PMID: 26388387 DOI: 10.1016/j.aca.2015.07.053] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 07/28/2015] [Accepted: 07/31/2015] [Indexed: 10/23/2022]
Abstract
Alpha-fetoprotein (AFP), a primary marker for many diseases including various cancers, is important in clinical tumor diagnosis and antenatal screening. Most immunoassays provide high sensitivity and accuracy for determining AFP, but they are expensive, often complex, time-consuming procedures. A simple and rapid point-of-care system that integrates Eu (III) chelate microparticles with lateral flow immunoassay (LFIA) has been developed to determine AFP in serum with an assay time of 15 min. The approach is based on a sandwich immunoassay performed on lateral flow test strips. A fluorescence strip reader was used to measure the fluorescence peak heights of the test line (HT) and the control line (HC); the HT/HC ratio was used for quantitation. The Eu (III) chelate microparticles-based LFIA assay exhibited a wide linear range (1.0-1000 IU mL(-1)) for AFP with a low limit of detection (0.1 IU mL(-1)) based on 5ul of serum. Satisfactory specificity and accuracy were demonstrated and the intra- and inter-assay coefficients of variation (CV) for AFP were both <10%. Furthermore, in the analysis of human serum samples, excellent correlation (n = 284, r = 0.9860, p < 0.0001) was obtained between the proposed method and a commercially available CLIA kit. Results indicated that the Eu (III) chelate microparticles-based LFIA system provided a rapid, sensitive and reliable method for determining AFP in serum, indicating that it would be suitable for development in point-of-care testing.
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Affiliation(s)
- Rong-Liang Liang
- Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou 510515, Guangdong, PR China
| | - Xu-Ping Xu
- Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou 510515, Guangdong, PR China
| | - Tian-Cai Liu
- Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou 510515, Guangdong, PR China
| | - Jian-Wei Zhou
- Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou 510515, Guangdong, PR China
| | - Xian-Guo Wang
- Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou 510515, Guangdong, PR China
| | - Zhi-Qi Ren
- Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou 510515, Guangdong, PR China
| | - Fen Hao
- DaAn Gene Co. Ltd. of Sun Yat-sen University, 19 Xiangshan Road, Guangzhou 510515, PR China
| | - Ying-Song Wu
- Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou 510515, Guangdong, PR China.
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A Magnetic Nanoparticle-Based Time-Resolved Fluoroimmunoassay for Determination of the Cytokeratin 19 Fragment in Human Serum. J Fluoresc 2015; 25:361-7. [DOI: 10.1007/s10895-015-1518-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 01/20/2015] [Indexed: 12/15/2022]
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13
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Chen J, Liu T, Chen Z, Hou J, Wu Y, Li M. Development of a time-resolved fluorescence immunoassay for Epstein-Barr virus Zta IgA antibodies in human serum. Viral Immunol 2015; 28:179-83. [PMID: 25651045 DOI: 10.1089/vim.2014.0126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The Epstein-Barr virus (EBV) transactivator protein (ZEBRA) is an immediate-early protein that plays an important role in the switch from latency to productive cycle in EBV virus. ZEBRA is an important marker of EBV reactivation. In order to diagnose EBV infection status correctly and timely, a novel immunoassay was developed based on an indirect time-resolved fluoroimmunoassay (TRFIA) for Zta IgA, which used recombinant Zta antigen as solid-phase antigen and Eu(3+)-labeled mouse antihuman IgA as corresponding probe. The precision, sensitivity, specificity test, and stability of the TRFIA kit were evaluated, and comparison with the traditional enzyme-linked immunosorbent assay (ELISA) was also investigated. The cutoff value for the TRFIA was 2.5. Intra- and interassay coefficients of variation for the TRFIA were 2.45-3.30% and 3.38-4.61% respectively. There was no cross-reactivity with the antibodies of cytomegalovirus (CMV) or herpes simplex virus (HSV) types 1 and 2, or other potential interferences. The established assay kit also behaved better in sensitivity and stability than the ELISA one. Additionally, the results in 382 serum samples using two analytical methods showed there was good agreement between the TRFIA and commercial ELISA kit. In the current study, the results demonstrated that the TRFIA that was developed for Zta IgA detection was more sensitive and reliable for the diagnosis of EBV infection and had potential value in automation and high-throughput screening.
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Affiliation(s)
- Juanjuan Chen
- State Key Laboratory of Organ Failure Research, Institute of Antibody Engineering, School of Biotechnology, Southern Medical University , Guangzhou, People's Republic of China
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Sun W, Ren S, Yuan G, Wang Y, Li L, Zhang L. A Dual-Label Time-Resolved Fluorescence Immunoassay for the Simultaneous Determination of β-Human Chorionic Gonadotropin and Progesterone. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.928881] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Lin G, Huang H, Liu T, He C, Liu J, Chen S, Hou J, Ren Z, Dong W, Wu Y. A time-resolved fluoroimmunoassay for the quantitation of rabies virus nucleoprotein in the rabies vaccine. J Virol Methods 2014; 206:89-94. [DOI: 10.1016/j.jviromet.2014.06.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/30/2014] [Accepted: 06/03/2014] [Indexed: 11/28/2022]
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16
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Chemiluminescence immunoassay based on microfluidic chips for α-fetoprotein. Clin Chim Acta 2014; 431:113-7. [DOI: 10.1016/j.cca.2014.02.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 01/22/2014] [Accepted: 02/04/2014] [Indexed: 12/13/2022]
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17
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Lin G, Zhao H, Liu T, Hou J, Ren Z, Huang W, Dong W, Wu Y. Simultaneous determination of the cytokeratin 19 fragment and carcinoembryonic antigen in human serum by magnetic nanoparticle-based dual-label time-resolved fluoroimmunoassay. RSC Adv 2014. [DOI: 10.1039/c4ra09848j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
A magnetic nanoparticle-based dual-label TRFIA employing europium and samarium chelate labels for simultaneous determination of CYFRA 21-1 and CEA.
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Affiliation(s)
- Guanfeng Lin
- Institute of Antibody Engineering
- School of Biotechnology
- Southern Medical University
- Guangzhou, China
| | - Hui Zhao
- Department of Human Anatomy
- School of Basic Medical sciences
- Southern Medical University
- Guangzhou, China
| | - Tiancai Liu
- Institute of Antibody Engineering
- School of Biotechnology
- Southern Medical University
- Guangzhou, China
| | - Jingyuan Hou
- Institute of Antibody Engineering
- School of Biotechnology
- Southern Medical University
- Guangzhou, China
| | - Zhiqi Ren
- Institute of Antibody Engineering
- School of Biotechnology
- Southern Medical University
- Guangzhou, China
| | - Wenhua Huang
- Department of Human Anatomy
- School of Basic Medical sciences
- Southern Medical University
- Guangzhou, China
| | - Wenqi Dong
- Department of Biopharmaceutical
- School of Biotechnology
- Southern Medical University
- Guangzhou, China
| | - Yingsong Wu
- Institute of Antibody Engineering
- School of Biotechnology
- Southern Medical University
- Guangzhou, China
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18
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Ren ZQ, Liu TC, Hou JY, Chen MJ, Chen ZH, Lin GF, Wu YS. A rapid and sensitive method based on magnetic beads for the detection of hepatitis B virus surface antigen in human serum. LUMINESCENCE 2013; 29:591-7. [PMID: 24136927 DOI: 10.1002/bio.2587] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 06/17/2013] [Accepted: 08/15/2013] [Indexed: 12/17/2022]
Abstract
Current clinically assays, such as enzyme-linked immunosorbent assay and chemiluminescence immunoassay, for hepatitis B surface antigen (HBsAg) are inferior in terms of either sensitivity and accuracy or rapid and high-throughput analysis. A novel assay based on magnetic beads and time-resolved fluoroimmunoassay was developed for the quantitative determination of HBsAg in human serum. HBsAg was captured using two types of anti-HBsAg monoclonal antibodies (B028, S015) immobilized on to magnetic beads and detected using europium-labeled anti-HBsAg polyclonal detection antibody. Finally, the assay yielded a high sensitivity (0.02 IU/mL) and a wide dynamic range (0.02-700 IU/mL) for HBsAg when performed under optimal conditions. Satisfactory accuracy, recovery and specificity were also demonstrated. The intra- and interassay coefficients of variation were 4.7-8.7% and 3.8-7.5%, respectively. The performance of this assay was further assessed against a well-established commercial chemiluminescence immunoassay kit with 399 clinical serum samples. It was revealed that the test results for the two methods were in good correlation (Y = 1.182X - 0.017, R = 0.989). In the current study, we demonstrated that this novel time-resolved fluoroimmunoassay could be used: as a highly sensitive, automated and high-throughput immunoassay for the diagnosis of acute or chronic hepatitis B virus infection; for the screening of blood or organ donors; and for the surveillance of persons at risk of acquiring or transmitting hepatitis B virus.
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Affiliation(s)
- Zhi-Qi Ren
- Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
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Hou JY, Liu TC, Ren ZQ, Chen MJ, Lin GF, Wu YS. Magnetic particle-based time-resolved fluoroimmunoassay for the simultaneous determination of α-fetoprotein and the free β-subunit of human chorionic gonadotropin. Analyst 2013; 138:3697-704. [DOI: 10.1039/c3an00412k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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