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Safenkova IV, Samokhvalov AV, Serebrennikova KV, Eremin SA, Zherdev AV, Dzantiev BB. DNA Probes for Cas12a-Based Assay with Fluorescence Anisotropy Enhanced Due to Anchors and Salts. BIOSENSORS 2023; 13:1034. [PMID: 38131794 PMCID: PMC10741848 DOI: 10.3390/bios13121034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
CRISPR/Cas12a is a potent biosensing tool known for its high specificity in DNA analysis. Cas12a recognizes the target DNA and acquires nuclease activity toward single-stranded DNA (ssDNA) probes. We present a straightforward and versatile approach to transforming common Cas12a-cleavable DNA probes into enhancing tools for fluorescence anisotropy (FA) measurements. Our study involved investigating 13 ssDNA probes with linear and hairpin structures, each featuring fluorescein at one end and a rotation-slowing tool (anchor) at the other. All anchors induced FA changes compared to fluorescein, ranging from 24 to 110 mr. Significant FA increases (up to 180 mr) were obtained by adding divalent metal salts (Mg2+, Ca2+, Ba2+), which influenced the rigidity and compactness of the DNA probes. The specific Cas12a-based recognition of double-stranded DNA (dsDNA) fragments of the bacterial phytopathogen Erwinia amylovora allowed us to determine the optimal set (probe structure, anchor, concentration of divalent ion) for FA-based detection. The best sensitivity was obtained using a hairpin structure with dC10 in the loop and streptavidin located near the fluorescein at the stem in the presence of 100 mM Mg2+. The detection limit of the dsDNA target was equal to 0.8 pM, which was eight times more sensitive compared to the common fluorescence-based method. The enhancing set ensured detection of single cells of E. amylovora per reaction in an analysis based on CRISPR/Cas12a with recombinase polymerase amplification. Our approach is universal and easy to implement. Combining FA with Cas12a offers enhanced sensitivity and signal reliability and could be applied to different DNA and RNA analytes.
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Affiliation(s)
- Irina V. Safenkova
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia; (I.V.S.); (A.V.S.); (K.V.S.); (S.A.E.); (A.V.Z.)
| | - Alexey V. Samokhvalov
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia; (I.V.S.); (A.V.S.); (K.V.S.); (S.A.E.); (A.V.Z.)
| | - Kseniya V. Serebrennikova
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia; (I.V.S.); (A.V.S.); (K.V.S.); (S.A.E.); (A.V.Z.)
| | - Sergei A. Eremin
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia; (I.V.S.); (A.V.S.); (K.V.S.); (S.A.E.); (A.V.Z.)
- Faculty of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Anatoly V. Zherdev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia; (I.V.S.); (A.V.S.); (K.V.S.); (S.A.E.); (A.V.Z.)
| | - Boris B. Dzantiev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia; (I.V.S.); (A.V.S.); (K.V.S.); (S.A.E.); (A.V.Z.)
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Ogura Y, Fukuyama M, Kasuya M, Shigemura K, Eremin SA, Tokeshi M, Hibara A. Rapid determination of domoic acid in seafood by fluorescence polarization immunoassay using a portable analyzer. ANAL SCI 2023; 39:2001-2006. [PMID: 37653216 PMCID: PMC10667144 DOI: 10.1007/s44211-023-00413-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 08/16/2023] [Indexed: 09/02/2023]
Abstract
Monitoring phycotoxin accumulation in marine products such as edible shellfish is a regulatory requirement in many countries. Therefore, a simple and rapid onsite quantification method is sought. Herein, we present a fluorescence polarization immunoassay (FPIA), a well-known one-step immunoassay, using a portable fluorescence polarization analyzer for domoic acid (DA), widely referred to as the primary toxin of amnesic shellfish poisoning (ASP). To establish FPIA for DA, the matrix effect of methanol, which is widely used to extract DA from shellfish, on FPIA was investigated. To validate this method, we performed a spike recovery test using oysters containing DA at a concentration equivalent to the regulatory limits of North America and the European Union (20 mg/kg). The recovery rate was found to be 79.4-114.7%, which is equivalent to that of the commercially available enzyme-linked immunosorbent assay (ELISA). We expect that this FPIA system will enable the quantitative onsite analysis of DA and significantly contribute to the safety of marine products.
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Affiliation(s)
- Yu Ogura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan
| | - Mao Fukuyama
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan.
| | - Motohiro Kasuya
- Faculty of Production Systems Engineering and Sciences, Komatsu University, Komatsu, Japan
| | | | - Sergei A Eremin
- Bach Institute of Biochemistry, Research Centre of Biotechnology, Russian Acad. Sci, Moscow, Russia
| | - Manabu Tokeshi
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - Akihide Hibara
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan.
- Departmentof Chemistry, School of Science, Tokyo Institute of Technology, Tokyo, Japan.
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3
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Chen LC, Li MC, Chen KR, Cheng YJ, Wu XY, Chen SA, Youh MJ, Kuo CC, Lin YX, Lin CY, Wang CF, Huang CF, Lin SY, Wang WH, Chen YH, Yu ML, Thitithanyanont A, Wang SF, Su LC. Facile and Unplugged Surface Plasmon Resonance Biosensor with NIR-Emitting Perovskite Nanocomposites for Fast Detection of SARS-CoV-2. Anal Chem 2023; 95:7186-7194. [PMID: 37103881 PMCID: PMC10152400 DOI: 10.1021/acs.analchem.2c05661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/11/2023] [Indexed: 04/28/2023]
Abstract
The emergence of the coronavirus disease 2019 (COVID-19) pandemic prompted researchers to develop portable biosensing platforms, anticipating to detect the analyte in a label-free, direct, and simple manner, for deploying on site to prevent the spread of the infectious disease. Herein, we developed a facile wavelength-based SPR sensor built with the aid of a 3D printing technology and synthesized air-stable NIR-emitting perovskite nanocomposites as the light source. The simple synthesis processes for the perovskite quantum dots enabled low-cost and large-area production and good emission stability. The integration of the two technologies enabled the proposed SPR sensor to exhibit the characteristics of lightweight, compactness, and being without a plug, just fitting the requirements of on-site detection. Experimentally, the detection limit of the proposed NIR SPR biosensor for refractive index change reached the 10-6 RIU level, comparable with that of state-of-the-art portable SPR sensors. In addition, the bio-applicability of the platform was validated by incorporating a homemade high-affinity polyclonal antibody toward the SARS-CoV-2 spike protein. The results demonstrated that the proposed system was capable of discriminating between clinical swab samples collected from COVID-19 patients and healthy subjects because the used polyclonal antibody exhibited high specificity against SARS-CoV-2. Most importantly, the whole measurement process not only took less than 15 min but also needed no complex procedures or multiple reagents. We believe that the findings disclosed in this work can open an avenue in the field of on-site detection for highly pathogenic viruses.
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Affiliation(s)
- Lung-Chien Chen
- Department of Electro-Optical Engineering,
National Taipei University of Technology, Taipei 10608,
Taiwan
| | - Meng-Chi Li
- Thin Film Technology Center, National
Central University, Taoyuan 32001, Taiwan
- Optical Sciences Center, National Central
University, Taoyuan 32001, Taiwan
| | - Kai-Ren Chen
- Department of Optics and Photonics,
National Central University, Taoyuan 32001,
Taiwan
| | - Yu-Jui Cheng
- Department of Electronic Engineering,
Ming Chi University of Technology, New Taipei City 24301,
Taiwan
| | - Xun-Ying Wu
- Department of Mechanical Engineering, Ming Chi
University of Technology, New Taipei City 24301,
Taiwan
| | - Sih-An Chen
- Department of Electro-Optical Engineering,
National Taipei University of Technology, Taipei 10608,
Taiwan
| | - Meng-Jey Youh
- Department of Mechanical Engineering, Ming Chi
University of Technology, New Taipei City 24301,
Taiwan
| | - Chien-Cheng Kuo
- Thin Film Technology Center, National
Central University, Taoyuan 32001, Taiwan
- Department of Optics and Photonics,
National Central University, Taoyuan 32001,
Taiwan
| | - Yu-Xen Lin
- TeraOptics Corporation,
Taoyuan 32472, Taiwan
| | - Chih-Yen Lin
- Center for Tropical Medicine and Infectious Disease
Research, Kaohsiung Medical University, Kaohsiung 80708,
Taiwan
- Department of Medical Laboratory Science and
Biotechnology, Kaohsiung Medical University, Kaohsiung 80708,
Taiwan
| | - Chu-Feng Wang
- Clinical Microbiology Laboratory, Department of
Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical
University, Kaohsiung 80708, Taiwan
| | - Chung-Feng Huang
- Hepatobiliary Division, Department of
Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical
University, Kaohsiung 80708, Taiwan
- Ph.D. Program in Translational Medicine,
College of Medicine, Kaohsiung Medical University, Kaohsiung, and Academia
Sinica, Kaohsiung 80708, Taiwan
- Faculty of Internal Medicine and Hepatitis
Research Center, College of Medicine, and Center for Cohort Study, Kaohsiung
Medical University, Kaohsiung 80708, Taiwan
| | - Shang-Yi Lin
- Clinical Microbiology Laboratory, Department of
Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical
University, Kaohsiung 80708, Taiwan
- Division of Infectious Disease, Department of
Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical
University, Kaohsiung 80708, Taiwan
| | - Wen-Hung Wang
- School of Medicine, College of Medicine,
National Sun Yat-Sen University, Kaohsiung 80424,
Taiwan
| | - Yen-Hsu Chen
- Center for Tropical Medicine and Infectious Disease
Research, Kaohsiung Medical University, Kaohsiung 80708,
Taiwan
- Division of Infectious Disease, Department of
Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical
University, Kaohsiung 80708, Taiwan
- School of Medicine, College of Medicine,
National Sun Yat-Sen University, Kaohsiung 80424,
Taiwan
| | - Ming-Lung Yu
- Hepatobiliary Division, Department of
Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical
University, Kaohsiung 80708, Taiwan
- School of Medicine, College of Medicine,
National Sun Yat-Sen University, Kaohsiung 80424,
Taiwan
| | - Arunee Thitithanyanont
- Department of Microbiology, Faculty of Science,
Mahidol University, Bangkok 10400,
Thailand
| | - Sheng-Fan Wang
- Center for Tropical Medicine and Infectious Disease
Research, Kaohsiung Medical University, Kaohsiung 80708,
Taiwan
- Department of Medical Laboratory Science and
Biotechnology, Kaohsiung Medical University, Kaohsiung 80708,
Taiwan
- Department of Medical Research,
Kaohsiung Medical University Hospital, Kaohsiung Medical
University, Kaohsiung 80708, Taiwan
| | - Li-Chen Su
- General Education Center, Ming
Chi University of Technology, New Taipei City 24301,
Taiwan
- Organic Electronics Research Center,
Ming Chi University of Technology, New Taipei City 24301,
Taiwan
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4
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Mukhametova LI, Eremin SA, Arutyunyan DA, Goryainova OS, Ivanova TI, Tillib SV. Fluorescence Polarization Immunoassay of Human Lactoferrin in Milk Using Small Single-Domain Antibodies. BIOCHEMISTRY. BIOKHIMIIA 2022; 87:1679-1688. [PMID: 36717456 DOI: 10.1134/s0006297922120227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Due to its unique structure and properties, human breast milk lactoferrin (hLF) has many nutritional and health-promoting functions in infants, including protection against inflammation and bacterial infections. The lack of LF in breastmilk or formula can result in the weakening of the infant's immune system. Noncompetitive polarization fluorescence immunoassay (FPIA) is a promising method for hLF quantification in milk and dairy products, which does not require the separation of the bound and free protein and allows to avoid time-consuming sample preparation. The use of fluorescently labeled single-domain camelid antibodies (nanobodies) for protein recognition in FPIA makes it possible to quantify relatively large antigens, in particular, hLF. In this work, we used previously obtained fluorescein isothiocyanate (FITC)-conjugated anti-hLF5 and anti-hLF16 nanobodies, which selectively recognized two different human lactoferrin epitopes, but did not bind to goat lactoferrin. The kinetics of hLF interaction with the FITC-labeled nanobodies was studied. The dissociation constant (KD) for the anti-LF5 and antiLF16 nanobodies was 3.2 ± 0.3 and 4.9 ± 0.4 nM, respectively, indicating the high-affinity binding of these nanobodies to hLF. We developed the FPIA protocol and determined the concentration of FITC-labeled anti-hLF5 and anti-hLF16 nanobodies that provided the optimal fluorescence signal and stable fluorescence polarization value. We also studied the dependence of fluorescence polarization on the hLF concentration in the noncompetitive FPIA with FITC-anti-hLF5 nanobody. The detection limit for hLF was 2.1 ± 0.2 µg/ml and the linear range for determining the hLF concentration was 3-10 µg/ml. FPIA is commonly used to assay low-molecular-weight substances; however, the use of fluorescently labeled nanobodies allows quantification of high-molecular-weight proteins. Here, we demonstrated that FPIA with fluorescently labeled nanobodies can be used for hLF quantification in milk.
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Affiliation(s)
- Lilia I Mukhametova
- Lomonosov Moscow State University, Faculty of Chemistry, Moscow, 119234, Russia
| | - Sergei A Eremin
- Lomonosov Moscow State University, Faculty of Chemistry, Moscow, 119234, Russia
| | | | - Oksana S Goryainova
- Institute of Gene Biology, Russian Academy of Sciences, Moscow, 119334, Russia
| | - Tatiana I Ivanova
- Institute of Gene Biology, Russian Academy of Sciences, Moscow, 119334, Russia
| | - Sergei V Tillib
- Institute of Gene Biology, Russian Academy of Sciences, Moscow, 119334, Russia
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5
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Takahashi K, Chida S, Suwatthanarak T, Iida M, Zhang M, Fukuyama M, Maeki M, Ishida A, Tani H, Yasui T, Baba Y, Hibara A, Okochi M, Tokeshi M. Non-competitive fluorescence polarization immunosensing for CD9 detection using a peptide as a tracer. LAB ON A CHIP 2022; 22:2971-2977. [PMID: 35713150 DOI: 10.1039/d2lc00224h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This paper is the first report of a non-competitive fluorescence polarization immunoassay (NC-FPIA) using a peptide as a tracer. The NC-FPIA can easily and quickly quantify the target after simply mixing them together. This feature is desirable for point-of-need applications such as clinical diagnostics, infectious disease screening, on-site analysis for food safety, etc. In this study, the NC-FPIA was applied to detect CD9, which is one of the exosome markers. We succeeded in detecting not only CD9 but also CD9 expressing exosomes derived from HeLa cells. This method can be applied to various targets if a tracer for the target can be prepared, and expectations are high for its future uses.
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Affiliation(s)
- Kazuki Takahashi
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan
| | - Shunsuke Chida
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan
| | - Thanawat Suwatthanarak
- Department of Chemical Science & Engineering, Tokyo Institute of Technology, 2-12-2 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Mikiko Iida
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Min Zhang
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Mao Fukuyama
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Masatoshi Maeki
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan.
- Japan Science and Technology Agency (JST), PRESTO, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Akihiko Ishida
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan.
| | - Hirofumi Tani
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan.
| | - Takao Yasui
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Japan Science and Technology Agency (JST), PRESTO, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan
- Institute of Nano-Life Systems, Institute of Innovation for Future Society, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Yoshinobu Baba
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Institute of Nano-Life Systems, Institute of Innovation for Future Society, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology (QST), 4-9-1, Anagawa, Inage-ku, Chiba 263-0024, Japan
| | - Akihide Hibara
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Mina Okochi
- Department of Chemical Science & Engineering, Tokyo Institute of Technology, 2-12-2 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Manabu Tokeshi
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan.
- Institute of Nano-Life Systems, Institute of Innovation for Future Society, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology (QST), 4-9-1, Anagawa, Inage-ku, Chiba 263-0024, Japan
- Innovative Research Center for Preventive Medical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
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6
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Zhang J, Zhang M, Yang Q, Wei L, Yuan B, Pang C, Zhang Y, Sun X, Guo Y. A simple and rapid homogeneous fluorescence polarization immunoassay for rapid identification of gutter cooking oil by detecting capsaicinoids. Anal Bioanal Chem 2022; 414:6127-6137. [PMID: 35804073 DOI: 10.1007/s00216-022-04177-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/13/2022] [Accepted: 06/13/2022] [Indexed: 11/30/2022]
Abstract
In order to address the widespread concerns with food safety such as adulteration and forgery in the edible oil field, this study developed a fluorescence polarization immunoassay (FPIA) based on a monoclonal antibody in a homogeneous solution system for determination of capsaicinoids in gutter cooking oil by using chemically stable capsaicinoids as an adulteration marker. The prepared fluoresceinthiocarbamyl ethylenediamine (EDF) was coupled with capsaicinoid hapten C, and the synthesized tracer was purified by thin-layer chromatography (TLC) and showed good binding to the monoclonal antibody CPC Ab-D8. The effects of concentration of tracer and recognition components, type and pH of buffer and incubation time on the performance of FPIA were studied. The linear range (IC20 to IC80) was 3.97-97.99 ng/mL, and the half maximal inhibitory concentration (IC50) was 19.73 ng/mL, and the limit of detection (LOD) was 1.56 ng/mL. The recovery rates of corn germ oil, soybean oil and peanut blend oil were in the range of 94.7-132.3%. The experimental results showed that the fluorescence polarization detection system could realize the rapid detection of capsaicinoids, and had the potential to realize on-site identification of gutter cooking oil. As a universal monoclonal antibody, CPC Ab-D8 can also specifically identify capsaicin and dihydrocapsaicin, so the proposed method can be used to quickly monitor for the presence of gutter cooking oil in normal cooking oil.
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Affiliation(s)
- Jiali Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China
| | - Minghui Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China
| | - Qingqing Yang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China. .,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China. .,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.
| | - Lin Wei
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China
| | - Bei Yuan
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China
| | - Chengchen Pang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China
| | - Yanyan Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China
| | - Xia Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China
| | - Yemin Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, Shandong Province, China
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7
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Development of a Rapid Fluorescent Diagnostic System for Early Detection of the Highly Pathogenic Avian Influenza H5 Clade 2.3.4.4 Viruses in Chicken Stool. Int J Mol Sci 2022; 23:ijms23116301. [PMID: 35682982 PMCID: PMC9181406 DOI: 10.3390/ijms23116301] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/01/2022] [Accepted: 06/01/2022] [Indexed: 01/27/2023] Open
Abstract
Rapid diagnosis is essential for the control and prevention of H5 highly pathogenic avian influenza viruses (HPAIVs). However, highly sensitive and rapid diagnostic systems have shown limited performance due to specific antibody scarcity. In this study, two novel specific monoclonal antibodies (mAbs) for clade 2.3.4.4 H5Nx viruses were developed by using an immunogen from a reversed genetic influenza virus (RGV). These mAbs were combined with fluorescence europium nanoparticles and an optimized lysis buffer, which were further used for developing a fluorescent immunochromatographic rapid strip test (FICT) for early detection of H5Nx influenza viruses on chicken stool samples. The result indicates that the limit of detection (LoD) of the developed FICT was 40 HAU/mL for detection of HPAIV H5 clade 2.3.4.4b in spiked chicken stool samples, which corresponded to 4.78 × 104 RNA copies as obtained from real-time polymerase chain reaction (RT-PCR). An experimental challenge of chicken with H5N6 HPAIV is lethal for chicken three days post-infection (DPI). Interestingly, our FICT could detect H5N6 in stool samples at 2 DPI earlier, with 100% relative sensitivity in comparison with RT-PCR, and it showed 50% higher sensitivity than the traditional colloidal gold-based rapid diagnostic test using the same mAbs pair. In conclusion, our rapid diagnostic method can be utilized for the early detection of H5Nx 2.3.4.4 HPAIVs in avian fecal samples from poultry farms or for influenza surveillance in wild migratory birds.
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8
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Nishiyama K, Takahashi K, Fukuyama M, Kasuya M, Imai A, Usukura T, Maishi N, Maeki M, Ishida A, Tani H, Hida K, Shigemura K, Hibara A, Tokeshi M. Facile and rapid detection of SARS-CoV-2 antibody based on a noncompetitive fluorescence polarization immunoassay in human serum samples. Biosens Bioelectron 2021; 190:113414. [PMID: 34130087 PMCID: PMC8178067 DOI: 10.1016/j.bios.2021.113414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/27/2021] [Accepted: 06/03/2021] [Indexed: 01/14/2023]
Abstract
Antibody detection methods for viral infections have received broad attention due to the COVID-19 pandemic. In addition, there remains an ever-increasing need to quantitatively evaluate the immune response to develop vaccines and treatments for COVID-19. Here, we report an analytical method for the rapid and quantitative detection of SARS-CoV-2 antibody in human serum by fluorescence polarization immunoassay (FPIA). A recombinant SARS-CoV-2 receptor binding domain (RBD) protein labeled with HiLyte Fluor 647 (F-RBD) was prepared and used for FPIA. When the anti-RBD antibody in human serum binds to F-RBD, the degree of polarization (P) increases by suppressing the rotational diffusion of F-RBD. The measurement procedure required only mixing a reagent containing F-RBD with serum sample and measuring the P value with a portable fluorescence polarization analyzer after 15 min incubation. We evaluated analytical performance of the developed FPIA system using 30 samples: 20 COVID-19 positive sera and 10 negative sera. The receiver operating characteristic curve drawn with the obtained results showed that this FPIA system had high accuracy for discriminating COVID-19 positive or negative serum (AUC = 0.965). The total measurement time was about 20 min, and the serum volume required for measurement was 0.25 μL. Therefore, we successfully developed the FPIA system that enables rapid and easy quantification of SARS-CoV-2 antibody. It is believed that our FPIA system will facilitate rapid on-site identification of infected persons and deepen understanding of the immune response to COVID-19.
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Affiliation(s)
- Keine Nishiyama
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, 060-8628, Japan
| | - Kazuki Takahashi
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, 060-8628, Japan
| | - Mao Fukuyama
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
| | - Motohiro Kasuya
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
| | - Ayuko Imai
- Tianma Japan, Ltd., Shin-Kawasaki Mitsui Building West Tower 28F 1-1-2, Kashimada, Saiwai-ku, Kawasaki, Kanagawa, 212-0058, Japan
| | - Takumi Usukura
- Tianma Japan, Ltd., Shin-Kawasaki Mitsui Building West Tower 28F 1-1-2, Kashimada, Saiwai-ku, Kawasaki, Kanagawa, 212-0058, Japan
| | - Nako Maishi
- Vascular Biology and Molecular Pathology, Graduate School of Dental Medicine, Hokkaido University, Kita 13 Nishi 7, Kita-ku, Sapporo, 060-8586, Japan
| | - Masatoshi Maeki
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, 060-8628, Japan
| | - Akihiko Ishida
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, 060-8628, Japan
| | - Hirofumi Tani
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, 060-8628, Japan
| | - Kyoko Hida
- Vascular Biology and Molecular Pathology, Graduate School of Dental Medicine, Hokkaido University, Kita 13 Nishi 7, Kita-ku, Sapporo, 060-8586, Japan
| | - Koji Shigemura
- Tianma Japan, Ltd., Shin-Kawasaki Mitsui Building West Tower 28F 1-1-2, Kashimada, Saiwai-ku, Kawasaki, Kanagawa, 212-0058, Japan
| | - Akihide Hibara
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
| | - Manabu Tokeshi
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, 060-8628, Japan; Innovative Research Centre for Preventive Medical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan; Institute of Innovation for Future Society, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
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