1
|
Liu J, Zhang Z, Dong J, Chen A, Qiu J, Li C. Electrochemical immunosensor based on hollow Pt@Cu 2O as a signal label for dual-mode detection of procalcitonin. Talanta 2024; 266:125018. [PMID: 37572476 DOI: 10.1016/j.talanta.2023.125018] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/14/2023]
Abstract
As a reliable biomarker to evaluate the severity of sepsis, sensitive and accurate detection of procalcitonin (PCT) is essential. In this study, a dual-mode electrochemical immunosensor based on Au/ZIF-8 as substrate and Pt@Cu2O as signal label was constructed for the detection of PCT. By loading Au nanoparticles onto rhombic dodecahedral ZIF-8, the substrate (Au/ZIF-8) has large specific surface area and can immobilize antibody (Ab1) by Au-N bonds. Meanwhile, hollow Pt@Cu2O nanocomposite with excellent peroxidase-like activity and electrocatalytic activity were synthesized as signal label. In the process of electrochemical testing, Pt@Cu2O catalyzed the reduction of hydrogen peroxide (H2O2) and further promotes the oxidation of hydroquinone (HQ) to achieve the synergistic amplification of electrochemical signals. The proposed immunosensor detected PCT by amperometric i-t and differential pulse voltammetry (DPV) tests with a good linear response and low limit of detection (i-t: 0.70 fg/mL and DPV: 0.40 fg/mL) in the range of 10 fg/mL∼100 ng/mL. The immunosensor exhibited excellent sensitivity and accuracy, indicating the potential application of this method for PCT detection.
Collapse
Affiliation(s)
- Jie Liu
- School of Public Health, Chongqing Medical University, Chongqing, 400016, China
| | - Zixuan Zhang
- School of Public Health, Chongqing Medical University, Chongqing, 400016, China
| | - Jie Dong
- School of Public Health, Chongqing Medical University, Chongqing, 400016, China
| | - Anyi Chen
- School of Public Health, Chongqing Medical University, Chongqing, 400016, China
| | - Jingfu Qiu
- School of Public Health, Chongqing Medical University, Chongqing, 400016, China
| | - Chaorui Li
- School of Public Health, Chongqing Medical University, Chongqing, 400016, China.
| |
Collapse
|
2
|
Khashaba MA, Abdelal IF, Abd El Rahman SM, Abdel Rahman MH. Sequential estimation of the national early warning score-2 and SERUM PRESEPSIN might discriminate sepsis patients who were vulnerable to death in surgical ICU. EGYPTIAN JOURNAL OF ANAESTHESIA 2022. [DOI: 10.1080/11101849.2022.2125249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Affiliation(s)
- Mohamed A. Khashaba
- Department of Anesthesia, Pain & ICU, Faculty of Medicine, Benha University, Benha, Egypt
| | - Inas F. Abdelal
- Department of Anesthesia, Pain & ICU, Faculty of Medicine, Cairo University, Giza, Egypt
| | | | | |
Collapse
|
3
|
Huang J, Cheng W, Li Y. 3D carbonized wood-based integrated electrochemical immunosensor for ultrasensitive detection of procalcitonin antigen. Talanta 2022; 238:122991. [PMID: 34857324 DOI: 10.1016/j.talanta.2021.122991] [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: 09/07/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 11/28/2022]
Abstract
This work presents a novel 3D carbonized wood-based integrated electrochemical immunosensor for ultrasensitive detection of procalcitonin (PCT) antigen at picogram level, achieving a wide linear detection range for PCT concentrations range from 0.05 to 90 pg mL-1 with a low detection limit of 0.014 pg mL-1 (S/N = 3), outperforming the previous reports. 3D carbonized wood as a new immunosensor matrix is used for electrochemical PCT biosensing, improving the stability of electrode and overcoming the disadvantages of traditional glassy carbon electrode (GCE). It obtained an excellent detection result, due to it has abundant mutual crisscross microchannels that promote the reactants and electrons transfer, greatly amplify the current signal. This novel sandwich-type electrochemical immunosensor is composed of 3D carbonized wood, carboxylic multi-walled carbon nanotube (cMWCNT), Au@Co3O4 core-shell nanosphere and Au/single layer nitrogen-doped graphene (Au/SL-NG), when it is applied for PCT detection in real clinical samples, it exhibits high accuracy same as enzyme-linked immunosorbent assay (ELISA) method.
Collapse
Affiliation(s)
- Jianzhi Huang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, People's Republic of China.
| | - Wenxue Cheng
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, People's Republic of China
| | - Yanliang Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, People's Republic of China.
| |
Collapse
|
4
|
Xu X, Lei X, Ye L, Song S, Liu L, Xu L, Xu C, Kuang H. Gold-based paper sensor for sensitive detection of procalcitonin in clinical samples. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
5
|
Electrochemical Immunosensors for Quantification of Procalcitonin: Progress and Prospects. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9070182] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Human procalcitonin (PCT) is a peptide precursor of the calcium-regulating hormone calcitonin. Traditionally, PCT has been used as a biomarker for severe bacterial infections and sepsis. It has also been recently identified as a potential marker for COVID-19. Normally, serum PCT is intracellularly cleaved to calcitonin, which lowers the levels of PCT (<0.01 ng/mL). In severe infectious diseases and sepsis, serum PCT levels increase above 100 ng/mL in response to pro-inflammatory stimulation. Development of sensors for specific quantification of PCT has resulted in considerable improvement in the sensitivity, linear range and rapid response. Among the various sensing strategies, electrochemical platforms have been extensively investigated owing to their cost-effectiveness, ease of fabrication and portability. Sandwich-type electrochemical immunoassays based on the specific antigen–antibody interactions with an electrochemical transducer and use of nanointerfaces has augmented the electrochemical response of the sensors towards PCT. Identification of a superior combination of electrode material and nanointerface, and translation of the sensing platform into flexible and disposable substrates are under active investigation towards development of a point-of-care device for PCT detection. This review provides an overview of the existing detection strategies and limitations of PCT electrochemical immunosensors, and the emerging directions to address these lacunae.
Collapse
|
6
|
Lv Y, Jin Q, Li J, Xu Y, Li LS, Shen H, Wu R. A CdSe/ZnS Core/Shell Quantum Dot-based Fluorescence-linked Immunosorbent Assay for the Sensitive and Accurate Detection of Procalcitonin. CHEM LETT 2021. [DOI: 10.1246/cl.200655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yanbing Lv
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Qiaoli Jin
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Jinjie Li
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Yanxia Xu
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Lin Song Li
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Huaibin Shen
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Ruili Wu
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, Henan, P. R. China
| |
Collapse
|
7
|
Liao M, Zheng J, Xu Y, Qiu Y, Xia C, Zhong Z, Liu L, Liu H, Liu R, Liang S. Development of magnetic particle-based chemiluminescence immunoassay for measurement of human procalcitonin in serum. J Immunol Methods 2020; 488:112913. [PMID: 33189726 DOI: 10.1016/j.jim.2020.112913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 11/01/2020] [Accepted: 11/10/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Serum procalcitonin (PCT) has been recognized as a primary biomarker in bacterial infections, and monitoring its concentration could help to evaluate the prognosis of sepsis and guide the antibiotic administration. We aimed to establish a fast and accurate immunoassay for PCT quantitation. METHODS Our newly developed monoclonal antibodies (mAbs) against human PCT were preliminarily evaluated by enzyme-linked immunosorbent assay and then used to develop a chemiluminescence enzyme immunoassay (CLEIA). The proposed CLEIA was assessed in analytical performance and applied to measurement of serum PCT. RESULTS mAb 2D3 and mAb 8F6 were selected as capture and detection antibody respectively, due to the highest sensitivity for PCT detection with no cross reaction to calcitonin gene-related peptides. The proposed CLEIA based on mAb pair of 2D3/8F6-AP was characterized for a working range from 0.03 to 100 μg/L. An excellent correlation was observed between our proposed assay and the VIDAS BRAHMS PCT assay (r: 0.9825). CONCLUSION Our newly developed mAbs and CLEIA can serve as important diagnostic tools for measurement of human PCT in serum.
Collapse
Affiliation(s)
- Minjing Liao
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410013, China; Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha 410013, China
| | - Jiao Zheng
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410013, China; Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha 410013, China
| | - Ye Xu
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410013, China; Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha 410013, China
| | - Yilan Qiu
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Chuan Xia
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410013, China; Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha 410013, China
| | - Zhihong Zhong
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410013, China; Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha 410013, China
| | - Lihui Liu
- Department of Medical Laboratory, Xiangya School of Medicine, Central South University, Changsha 410013, China
| | - Hongrong Liu
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Rushi Liu
- Department of Medical Laboratory, School of Medicine, Hunan Normal University, Changsha 410013, China; Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha 410013, China; Changsha hospital affiliated to Hunan Normal University, Changsha 410081, China.
| | - Songyue Liang
- Hunan Maternal and Child Health Care Hospital, Changsha 410008, China.
| |
Collapse
|
8
|
Molinero-Fernández Á, Moreno-Guzmán M, López MÁ, Escarpa A. Magnetic Bead-Based Electrochemical Immunoassays On-Drop and On-Chip for Procalcitonin Determination: Disposable Tools for Clinical Sepsis Diagnosis. BIOSENSORS-BASEL 2020; 10:bios10060066. [PMID: 32560303 PMCID: PMC7344519 DOI: 10.3390/bios10060066] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/29/2020] [Accepted: 06/11/2020] [Indexed: 12/28/2022]
Abstract
Procalcitonin (PCT) is a known protein biomarker clinically used for the early stages of sepsis diagnosis and therapy guidance. For its reliable determination, sandwich format magnetic bead-based immunoassays with two different electrochemical detection approaches are described: (i) disposable screen-printed carbon electrodes (SPE-C, on-drop detection); (ii) electro-kinetically driven microfluidic chips with integrated Au electrodes (EMC-Au, on-chip detection). Both approaches exhibited enough sensitivity (limit of detection (LOD) of 0.1 and 0.04 ng mL−1 for SPE-C and EMC-Au, respectively; cutoff 0.5 ng mL−1), an adequate working range for the clinically relevant concentrations (0.5–1000 and 0.1–20 ng mL−1 for SPE-C and EMC-Au, respectively), and good precision (RSD < 9%), using low sample volumes (25 µL) with total assay times less than 20 min. The suitability of both approaches was successfully demonstrated by the analysis of human serum and plasma samples, for which good recoveries were obtained (89–120%). Furthermore, the EMC-Au approach enabled the easy automation of the process, constituting a reliable alternative diagnostic tool for on-site/bed-site clinical analysis.
Collapse
Affiliation(s)
- Águeda Molinero-Fernández
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Universidad de Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, Alcalá de Henares, 28871 Madrid, Spain;
| | - María Moreno-Guzmán
- Department of Chemistry in Pharmaceutical Sciences, Analytical Chemistry, Faculty of Pharmacy, Universidad Complutense de Madrid, Avenida Complutense, s/n, 28040 Madrid, Spain;
| | - Miguel Ángel López
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Universidad de Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, Alcalá de Henares, 28871 Madrid, Spain;
- Chemical Research Institute “Andres M. Del Rio”, Universidad de Alcalá, Alcalá de Henares, 28871 Madrid, Spain
- Correspondence: (M.Á.L.); (A.E.)
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Universidad de Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, Alcalá de Henares, 28871 Madrid, Spain;
- Chemical Research Institute “Andres M. Del Rio”, Universidad de Alcalá, Alcalá de Henares, 28871 Madrid, Spain
- Correspondence: (M.Á.L.); (A.E.)
| |
Collapse
|
9
|
Molinero-Fernández Á, Moreno-Guzmán M, Arruza L, López MÁ, Escarpa A. Polymer-Based Micromotor Fluorescence Immunoassay for On-the-Move Sensitive Procalcitonin Determination in Very Low Birth Weight Infants' Plasma. ACS Sens 2020; 5:1336-1344. [PMID: 32204587 DOI: 10.1021/acssensors.9b02515] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A new fluorescence micromotor-based immunoassay (FMIm) has been developed for procalcitonin (PCT) determination as an early sepsis diagnostic analytical tool. The micromotors combine the high binding capacity of the specific antibodies onto their polymeric polypyrrole outer layer (PPy layer), with their magnetic guidance (Ni layer) and self-propulsion by catalytic generation of oxygen bubbles (PtNP inner layer) to actively recognize the PCT antigen. This FMIm allowed a sensitive (LOD = 0.07 ng mL-1) and direct PCT determination in clinical samples from very low-birth-weight infants (VLBWI) with sepsis suspicion, using small volumes of sample (25 μL) in a clinically relevant range of concentrations (0.5-150 ng mL-1). The good agreement between PCT levels obtained by our micromotor-based method and routine immunofluorescence hospital determination demonstrates the feasibility for the analysis in VLBWI samples and its potential as a point-of-care diagnostic tool for sepsis.
Collapse
Affiliation(s)
- Águeda Molinero-Fernández
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, 28871 Alcalá de Henares, Madrid, Spain
| | - María Moreno-Guzmán
- Department of Chemistry in Pharmaceutical Sciences, Analytical Chemistry, Faculty of Pharmacy, Universidad Complutense de Madrid, Avenida Complutense, s/n, 28040 Madrid, Spain
| | - Luis Arruza
- Division of Neonatology, Instituto del Niño y del Adolescente, Hospital Clínico San Carlos-IdISSC, 28040 Madrid, Spain
| | - Miguel Ángel López
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, 28871 Alcalá de Henares, Madrid, Spain
- Chemical Research Institute “Andres M. Del Rio”, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, 28871 Alcalá de Henares, Madrid, Spain
- Chemical Research Institute “Andres M. Del Rio”, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| |
Collapse
|
10
|
Abbas Z, Soomro RA, Kalwar NH, Tunesi M, Willander M, Karakuş S, Kilislioğlu A. In Situ Growth of CuWO 4 Nanospheres over Graphene Oxide for Photoelectrochemical (PEC) Immunosensing of Clinical Biomarker. SENSORS 2019; 20:s20010148. [PMID: 31881686 PMCID: PMC6983212 DOI: 10.3390/s20010148] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/20/2019] [Accepted: 12/21/2019] [Indexed: 12/29/2022]
Abstract
Procalcitonin (PCT) protein has recently been identified as a clinical marker for bacterial infections based on its better sepsis sensitivity. Thus, an increased level of PCT could be linked with disease diagnosis and therapeutics. In this study, we describe the construction of the photoelectrochemical (PEC) PCT immunosensing platform based on it situ grown photo-active CuWO4 nanospheres over reduced graphene oxide layers (CuWO4@rGO). The in situ growth strategy enabled the formation of small nanospheres (diameter of 200 nm), primarily composed of tiny self-assembled CuWO4 nanoparticles (2–5 nm). The synergic coupling of CuWO4 with rGO layers constructed an excellent photo-active heterojunction for photoelectrochemical (PEC) sensing. The platform was then considered for electrocatalytic (EC) mechanism-based detection of PCT, where inhibition of the photocatalytic oxidation signal of ascorbic acid (AA), subsequent to the antibody–antigen interaction, was recorded as the primary signal response. This inhibition detection approach enabled sensitive detection of PCT in a concentration range of 10 pg·mL−1 to 50 ng.mL−1 with signal sensitivity achievable up to 0.15 pg·mL−1. The proposed PEC hybrid (CuWO4@rGO) could further be engineered to detect other clinically important species.
Collapse
Affiliation(s)
- Zaheer Abbas
- Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
| | - Razium Ali Soomro
- Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China;
- Correspondence: (R.A.S); (M.W.)
| | - Nazar Hussain Kalwar
- Institute of Chemistry, Shah Abdul Latif University Khairpur, Khairpur 66020, Pakistan;
| | - Mawada Tunesi
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China;
| | - Magnus Willander
- Department of Science and Technology, Campus Norrkoping, Linkoping University, SE-60174 Norrkoping, Sweden
- Correspondence: (R.A.S); (M.W.)
| | - Selcan Karakuş
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Avcılar, Istanbul 34320, Turkey; (S.K.); (A.K.)
| | - Ayben Kilislioğlu
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Avcılar, Istanbul 34320, Turkey; (S.K.); (A.K.)
| |
Collapse
|
11
|
Ultra-sensitive capillary immunosensor combining porous-layer surface modification and biotin-streptavidin nano-complex signal amplification: Application for sensing of procalcitonin in serum. Talanta 2019; 205:120089. [DOI: 10.1016/j.talanta.2019.06.089] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/21/2019] [Accepted: 06/26/2019] [Indexed: 12/19/2022]
|
12
|
Development and Validation of an Ultrasensitive Procalcitonin Sandwich Immunoassay. High Throughput 2017; 6:ht6040018. [PMID: 29479055 PMCID: PMC5748597 DOI: 10.3390/ht6040018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 11/08/2017] [Accepted: 11/13/2017] [Indexed: 12/18/2022] Open
Abstract
Procalcitonin (PCT) is well established as a highly specific biomarker for the detection of bacterial infections and sepsis. However, the currently available diagnostic tests are not able to detect very low or very early increases of PCT or even baseline levels in healthy individuals or patients with non-bacterial infections. In order to be able to detect these very low concentrations of PCT, a sandwich immunoassay was developed using high sensitivity Single Molecule Array technology (Simoa). The assay was thoroughly validated and applied to analyze human cerebrospinal fluid (CSF) and serum samples from patients with bacterial or viral meningitis as well as CSF, serum, and K2 EDTA plasma from healthy control subjects. A 50-fold increase in sensitivity compared to the current gold standard assays was achieved, which was sensitive enough for the detection of baseline PCT levels. Both serum and CSF showed significantly elevated PCT levels in patients with bacterial meningitis compared to patients with viral meningitis and the healthy control group. Procalcitonin concentration levels for patients with viral meningitis and the control group could be measured, but were not significantly different. The determination of PCT in the low pg·mL−1 range could help to improve the monitoring of bacterial infectious diseases, as PCT level changes could be detected earlier.
Collapse
|
13
|
Development of a fluorescent immnunochromatographic assay for the procalcitonin detection of clinical patients in China. Clin Chim Acta 2015; 444:37-42. [DOI: 10.1016/j.cca.2015.01.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 01/27/2015] [Accepted: 01/27/2015] [Indexed: 01/12/2023]
|
14
|
Total internal reflection (TIRF)-based quantification of procalcitonin for sepsis diagnosis – A point-of-care testing application. Biosens Bioelectron 2014; 59:251-8. [DOI: 10.1016/j.bios.2014.03.052] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 02/27/2014] [Accepted: 03/20/2014] [Indexed: 02/02/2023]
|
15
|
Rieger M, Kochleus C, Teschner D, Rascher D, Barton AK, Geerlof A, Kremmer E, Schmid M, Hartmann A, Gehlen H. A new ELISA for the quantification of equine procalcitonin in plasma as potential inflammation biomarker in horses. Anal Bioanal Chem 2014; 406:5507-12. [PMID: 24928115 DOI: 10.1007/s00216-014-7944-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 05/09/2014] [Accepted: 06/03/2014] [Indexed: 10/25/2022]
Abstract
In human medicine, procalcitonin (PCT) is a very common and well-established biomarker for sepsis. Even though sepsis is also a leading cause of death in foals and adult horses, up to now, no data about the role of equine PCT in septic horses has been available. Based on monoclonal antibodies targeted against human PCT, we report here the development of a sandwich ELISA for the quantification of equine PCT in equine plasma samples. The ELISA was characterized for intra- and interassay variance and a working range from 25 to 1,000 ng mL(-1) was defined as within this range; both intra- and interassay variances were below 15 %. The target recovery ranged between 73 and 106 %. The ELISA was used to determine the equine PCT concentration in 24 healthy and 5 septic horses to show the potential for clinical evaluation of equine PCT. Significantly different (P = 0.0006) mean equine PCT concentrations were found for the healthy control group and the sepsis group (47 and 8,450 ng mL(-1)).
Collapse
Affiliation(s)
- Martin Rieger
- Research Unit Microbe-Plant Interactions, Department of Environmental Sciences, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Ingolstädter Landstraße 1, 85764, Neuherberg, Germany,
| | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Fang YS, Wang HY, Wang LS, Wang JF. Electrochemical immunoassay for procalcitonin antigen detection based on signal amplification strategy of multiple nanocomposites. Biosens Bioelectron 2014; 51:310-6. [DOI: 10.1016/j.bios.2013.07.035] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 06/17/2013] [Accepted: 07/20/2013] [Indexed: 02/07/2023]
|
17
|
Sener G, Ozgur E, Rad AY, Uzun L, Say R, Denizli A. Rapid real-time detection of procalcitonin using a microcontact imprinted surface plasmon resonance biosensor. Analyst 2013; 138:6422-8. [DOI: 10.1039/c3an00958k] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
18
|
Rieger M, Rascher D, Hartmann A. Development of a new monoclonal antibody-based point-of-care testing assay for the quantification of procalcitonin in whole blood for a rapid sepsis diagnostic. Crit Care 2013. [PMCID: PMC3952136 DOI: 10.1186/cc12913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|