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Atçeken N, Yigci D, Ozdalgic B, Tasoglu S. CRISPR-Cas-Integrated LAMP. BIOSENSORS 2022; 12:1035. [PMID: 36421156 PMCID: PMC9688180 DOI: 10.3390/bios12111035] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/10/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Pathogen-specific point-of-care (PoC) diagnostic tests have become an important need in the fight against infectious diseases and epidemics in recent years. PoC diagnostic tests are designed with the following parameters in mind: rapidity, accuracy, sensitivity, specificity, and ease of use. Molecular techniques are the gold standard for pathogen detection due to their accuracy and specificity. There are various limitations in adapting molecular diagnostic methods to PoC diagnostic tests. Efforts to overcome limitations are focused on the development of integrated molecular diagnostics by utilizing the latest technologies available to create the most successful PoC diagnostic platforms. With this point of view, a new generation technology was developed by combining loop-mediated isothermal amplification (LAMP) technology with clustered regularly interspaced short palindromic repeat (CRISPR)-associated (CRISPR-Cas) technology. This integrated approach benefits from the properties of LAMP technology, namely its high efficiency, short turnaround time, and the lack of need for a complex device. It also makes use of the programmable function of CRISPR-Cas technology and the collateral cleavage activity of certain Cas proteins that allow for convenient reporter detection. Thus, this combined technology enables the development of PoC diagnostic tests with high sensitivity, specificity, and ease of use without the need for complicated devices. In this review, we discuss the advantages and limitations of the CRISPR/Cas combined LAMP technology. We review current limitations to convert CRISPR combined LAMP into pathogen-specific PoC platforms. Furthermore, we point out the need to design more useful PoC platforms using microfabrication technologies by developing strategies that overcome the limitations of this new technology, reduce its complexity, and reduce the risk of contamination.
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Affiliation(s)
- Nazente Atçeken
- Koç University Translational Medicine Research Center (KUTTAM), Koç University, Istanbul 34450, Turkey
| | - Defne Yigci
- School of Medicine, Koç University, Istanbul 34450, Turkey
| | - Berin Ozdalgic
- Koç University Translational Medicine Research Center (KUTTAM), Koç University, Istanbul 34450, Turkey
- Department of Mechanical Engineering, Engineering Faculty, Koç University, Istanbul 34450, Turkey
- School of Medical Services & Techniques, Dogus University, Istanbul 34775, Turkey
| | - Savas Tasoglu
- Koç University Translational Medicine Research Center (KUTTAM), Koç University, Istanbul 34450, Turkey
- Department of Mechanical Engineering, Engineering Faculty, Koç University, Istanbul 34450, Turkey
- Boğaziçi Institute of Biomedical Engineering, Boğaziçi University, Istanbul 34684, Turkey
- Koç University Arçelik Research Center for Creative Industries (KUAR), Koç University, Istanbul 34450, Turkey
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Wang B, Li B, Huang H, Yang S, Jian D, Liu J, Yan K, Shan Y, Wang S, Liu F. Sensitive antibody fluorescence immunosorbent assay (SAFIA) for rapid on-site detection on avian influenza virus H9N2 antibody. Anal Chim Acta 2021; 1164:338524. [PMID: 33992218 DOI: 10.1016/j.aca.2021.338524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 04/11/2021] [Accepted: 04/13/2021] [Indexed: 12/12/2022]
Abstract
Avian influenza virus (AIV) is a serious zoonotic disease causing severe damages to both poultry industry and human health. To rapidly detect AIV on-site with high sensitivity and accuracy, we design sensitive antibody fluorescence immunosorbent assay (SAFIA) on AIV H9N2 antibody. In SAFIA, hemagglutinin (HA1) protein coated sample chamber specifically binds targets but remarkably reduces non-specific absorption; Protein L coated polystyrene microsphere captures target through secondary antibody to significantly amplify the fluorescence signal; and a portable fluorescence counter automatically measures the fluorescence spot density for AIV H9N2 antibody detection. Proved by practical applications, SAFIA could probe AIV H9N2 antibody in high sensitivity and selectivity, and distinguish positive and negative serum samples in high accuracy. Additionally, SAFIA can rapidly detect AIV H9N2 antibody at room temperature only requiring simple operations as well as cost-effective and compact devices. Therefore, SAFIA is a potential new-generation tool in rapid on-site testing for agricultures.
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Affiliation(s)
- Bin Wang
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Baojie Li
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Huachuan Huang
- School of Manufacture Science and Engineering, Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Shuwei Yang
- Advanced Institute of Micro-Nano Intelligent Sensing (AIMNIS), School of Electronic Information Engineering, Xi'an Technological University, Xi'an, Shaanxi, 710032, China
| | - Dan Jian
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; Computational Optics Laboratory, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Jing Liu
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Keding Yan
- Advanced Institute of Micro-Nano Intelligent Sensing (AIMNIS), School of Electronic Information Engineering, Xi'an Technological University, Xi'an, Shaanxi, 710032, China
| | - Yanke Shan
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
| | - Shouyu Wang
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; Computational Optics Laboratory, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Fei Liu
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
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Courtney SJ, Stromberg ZR, Kubicek-Sutherland JZ. Nucleic Acid-Based Sensing Techniques for Diagnostics and Surveillance of Influenza. BIOSENSORS-BASEL 2021; 11:bios11020047. [PMID: 33673035 PMCID: PMC7918464 DOI: 10.3390/bios11020047] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/01/2021] [Accepted: 02/09/2021] [Indexed: 02/07/2023]
Abstract
Influenza virus poses a threat to global health by causing seasonal outbreaks as well as three pandemics in the 20th century. In humans, disease is primarily caused by influenza A and B viruses, while influenza C virus causes mild disease mostly in children. Influenza D is an emerging virus found in cattle and pigs. To mitigate the morbidity and mortality associated with influenza, rapid and accurate diagnostic tests need to be deployed. However, the high genetic diversity displayed by influenza viruses presents a challenge to the development of a robust diagnostic test. Nucleic acid-based tests are more accurate than rapid antigen tests for influenza and are therefore better candidates to be used in both diagnostic and surveillance applications. Here, we review various nucleic acid-based techniques that have been applied towards the detection of influenza viruses in order to evaluate their utility as both diagnostic and surveillance tools. We discuss both traditional as well as novel methods to detect influenza viruses by covering techniques that require nucleic acid amplification or direct detection of viral RNA as well as comparing advantages and limitations for each method. There has been substantial progress in the development of nucleic acid-based sensing techniques for the detection of influenza virus. However, there is still an urgent need for a rapid and reliable influenza diagnostic test that can be used at point-of-care in order to enhance responsiveness to both seasonal and pandemic influenza outbreaks.
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Luo B, Liu Z, Wang X, Shi S, Zhong N, Ma P, Wu S, Wu D, Zhao M, Liang W. Dual-peak long period fiber grating coated with graphene oxide for label-free and specific assays of H5N1 virus. JOURNAL OF BIOPHOTONICS 2021; 14:e202000279. [PMID: 32902141 DOI: 10.1002/jbio.202000279] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/20/2020] [Accepted: 09/06/2020] [Indexed: 05/28/2023]
Abstract
Avian influenza is an acute infectious disease caused by the avian influenza virus (AIV), which has caused enormous economic losses and posed considerable threats to public health. This study aimed to demonstrate an immunosensor based on dispersion turning point long-period fiber grating (DTP-LPFG) integrated with graphene oxide (GO) for the specific detection of a type of AIV H5N1 virus. LPFG was designed to work at DTP, whose dual-peak spacing was very high sensitive to a refractive index. Anti-H5N1 monoclonal antibodies were covalently bonded with the GO film on the fiber surface, thus constructing an immunosensor for the label-free and specific detection of the H5N1 virus. The proposed method was capable of the reliable detection of H5N1 virus with the limit of detection as low as ~1.05 ng/ml within the large range of 1 ng/mL to 25 µg/mL. More importantly, immunoassays of the whole H5N1 virus in clinical samples further confirmed that the GO-integrated DTP-LPFG immunosensor showed very high specificity to the H5N1 virus and demonstrated great potential for clinical use.
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Affiliation(s)
- Binbin Luo
- Chongqing Key Laboratory of Optical Fiber Sensor and Photoelectric Detection, Chongqing University of Technology, Chongqing, China
| | - Zhijiang Liu
- Chongqing Key Laboratory of Optical Fiber Sensor and Photoelectric Detection, Chongqing University of Technology, Chongqing, China
| | - Xin Wang
- Chongqing Key Laboratory of Optical Fiber Sensor and Photoelectric Detection, Chongqing University of Technology, Chongqing, China
| | - Shenghui Shi
- Chongqing Key Laboratory of Optical Fiber Sensor and Photoelectric Detection, Chongqing University of Technology, Chongqing, China
| | - Nianbing Zhong
- Chongqing Key Laboratory of Optical Fiber Sensor and Photoelectric Detection, Chongqing University of Technology, Chongqing, China
| | - Peijie Ma
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Shengxi Wu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Decao Wu
- Chongqing Key Laboratory of Optical Fiber Sensor and Photoelectric Detection, Chongqing University of Technology, Chongqing, China
| | - Mingfu Zhao
- Chongqing Key Laboratory of Optical Fiber Sensor and Photoelectric Detection, Chongqing University of Technology, Chongqing, China
| | - Wangwang Liang
- Animal Disease Surveillance and Diagnosis Department, Chongqing Animal Disease Prevention and Control Center, Chongqing, China
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Lee MH, Song KY, Hwang HJ, Kim JH, Hwang I. Development of fast and sensitive protocols for the detection of viral pathogens using a small portable convection PCR platform. Mol Biol Rep 2019; 46:5073-5077. [PMID: 31313130 DOI: 10.1007/s11033-019-04961-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 06/28/2019] [Indexed: 11/26/2022]
Abstract
One of the most crucial steps for preventing viral pandemics is the early detection of the causative virus on site. Various molecular and immunological approaches have been developed for virus detection. In this study, we investigated the utility of the recently introduced convection polymerase chain reaction (cPCR) platform for the rapid and sensitive detection of various animal viruses in the field, including the foot-and-mouth disease virus (FMDV) and avian influenza viruses (AIVs). Primer sets were designed to simultaneously detect two highly conserved regions of the FMDV, including the 5' untranslated region (5'-UTR) and 3D gene, and to specifically amplify the NP and hemagglutinin (HA) genes of H5 and H9 subtypes of AIVs. The portable cPCR system was able to amplify from as low as 1 to 10 copies of viral cDNAs in the singleplex mode and 10 to 100 copies of viral cDNAs in the duplex mode within 21 min. Thus, our data suggest that the cPCR protocols developed in this study are highly sensitive and enable quick detection of animal viruses in biological samples.
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Affiliation(s)
- Myoung Hui Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang, 790-784, Republic of Korea
| | - Kyung-Young Song
- R&D Center, Ahram Biosystems Inc, Seoul, 133-120, Republic of Korea
| | - Hyun Jin Hwang
- R&D Center, Ahram Biosystems Inc, Seoul, 133-120, Republic of Korea
| | - Jeong Hee Kim
- Department of Biochemistry and Molecular Biology, College of Dentistry, Graduate School, Kyung Hee University, Seoul, 130-701, Republic of Korea.
- Department of Life and Nanopharmaceutical Sciences, College of Dentistry, Graduate School, Kyung Hee University, Seoul, 130-701, Republic of Korea.
| | - Inhwan Hwang
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang, 790-784, Republic of Korea.
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, 790-784, Republic of Korea.
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Ortiz de Lejarazu Leonardo R, Rojo Rello S, Sanz Muñoz I. Diagnostic challenges in influenza. Enferm Infecc Microbiol Clin 2019; 37 Suppl 1:47-55. [PMID: 31138423 DOI: 10.1016/s0213-005x(19)30182-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In 2018 there are still microbiology laboratories that do not subtype or detect influenza viruses, one of the main agents of community-acquired pneumonia. A major challenge is to introduce multiplex-type technologies into most clinical virological diagnostic laboratories, increasing the feasibility of timely etiological diagnosis of influenza and other respiratory viruses whenever required and thus limiting antibiotic treatments. Other diagnostic tools such as markers of severity and the detection of resistance are pending challenges to complete and expand. Viral culture, an essential tool in the epidemiological surveillance of viruses, has been relegated by more sensitive and affordable molecular techniques. Sequencing of the influenza virus together with the antigenic characterisation and detection techniques of antibodies against hemagglutinin and neuraminidase will, in future, be used in tandem with other techniques to detect antibodies against other structural proteins, helping to elucidate the complicated epidemiology of these viruses and the production of new vaccines and their evaluation. Supplement information: This article is part of a supplement entitled «SEIMC External Quality Control Programme. Year 2016», which is sponsored by Roche, Vircell Microbiologists, Abbott Molecular and Francisco Soria Melguizo, S.A. © 2019 Elsevier España, S.L.U. and Sociedad Española de Enfermedades Infecciosasy Microbiología Clínica. All rights reserved.
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Affiliation(s)
- Raúl Ortiz de Lejarazu Leonardo
- Centro Nacional de Gripe de Valladolid, Universidad de Valladolid, Valladolid, España; Servicio de Microbiología e Inmunología, Hospital Clínico Universitario de Valladolid, Valladolid, España.
| | - Silvia Rojo Rello
- Centro Nacional de Gripe de Valladolid, Universidad de Valladolid, Valladolid, España; Servicio de Microbiología e Inmunología, Hospital Clínico Universitario de Valladolid, Valladolid, España
| | - Iván Sanz Muñoz
- Centro Nacional de Gripe de Valladolid, Universidad de Valladolid, Valladolid, España
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7
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Rapid detection and control of psychrotrophic microorganisms in cold storage foods: A review. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.02.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Tabata KV, Minagawa Y, Kawaguchi Y, Ono M, Moriizumi Y, Yamayoshi S, Fujioka Y, Ohba Y, Kawaoka Y, Noji H. Antibody-free digital influenza virus counting based on neuraminidase activity. Sci Rep 2019; 9:1067. [PMID: 30705374 PMCID: PMC6355933 DOI: 10.1038/s41598-018-37994-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 12/17/2018] [Indexed: 12/14/2022] Open
Abstract
There is large demand for a quantitative method for rapid and ultra-sensitive detection of the influenza virus. Here, we established a digital influenza virus counting (DIViC) method that can detect a single virion without antibody. In the assay, a virion is stochastically entrapped inside a femtoliter reactor array device for the fluorogenic assay of neuraminidase, and incubated for minutes. By analyzing 600,000 reactors, the practical limit of detection reached the order of 103 (PFU)/mL, only 10-times less sensitive than RT-PCR and more than 1000-times sensitive than commercial rapid test kits (RIDTs). Interestingly, neuraminidase activity differed among virions. The coefficient of variance was 30-40%, evidently broader than that of alkaline phosphatase measured as a model enzyme for comparison, suggesting the heterogeneity in size and integrity among influenza virus particles. Sensitivity to oseltamivir also differed between virions. We also tested DIViC using clinical gargle samples that imposes less burden for sampling while with less virus titre. The comparison with RIDTs showed that DIViC was largely superior to RIDTs in the sensitivity with the clinical samples although a few false-positive signals were observed in some clinical samples that remains as a technical challenge.
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Affiliation(s)
- Kazuhito V Tabata
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Japan.
- ImPACT Program, Cabinet Office, Government of Japan, Chiyoda-ku, Tokyo, 100-8914, Japan.
| | - Yoshihiro Minagawa
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Japan
| | - Yuko Kawaguchi
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Japan
| | - Mana Ono
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Japan
| | - Yoshiki Moriizumi
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Japan
| | - Seiya Yamayoshi
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639, Japan
| | - Yoichiro Fujioka
- Department of Cell Physiology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, N15 W7, Kita-ku, Sapporo, Japan
| | - Yusuke Ohba
- Department of Cell Physiology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, N15 W7, Kita-ku, Sapporo, Japan
| | - Yoshihiro Kawaoka
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639, Japan
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53711, USA
| | - Hiroyuki Noji
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Japan.
- ImPACT Program, Cabinet Office, Government of Japan, Chiyoda-ku, Tokyo, 100-8914, Japan.
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Hong S, Lee C. The Current Status and Future Outlook of Quantum Dot-Based Biosensors for Plant Virus Detection. THE PLANT PATHOLOGY JOURNAL 2018; 34:85-92. [PMID: 29628814 PMCID: PMC5880352 DOI: 10.5423/ppj.rw.08.2017.0184] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 01/14/2018] [Accepted: 01/18/2018] [Indexed: 05/23/2023]
Abstract
Enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR), widely used for the detection of plant viruses, are not easily performed, resulting in a demand for an innovative and more efficient diagnostic method. This paper summarizes the characteristics and research trends of biosensors focusing on the physicochemical properties of both interface elements and bioconjugates. In particular, the topological and photophysical properties of quantum dots (QDs) are discussed, along with QD-based biosensors and their practical applications. The QD-based Fluorescence Resonance Energy Transfer (FRET) genosensor, most widely used in the biomolecule detection fields, and QD-based nanosensor for Rev-RRE interaction assay are presented as examples. In recent years, QD-based biosensors have emerged as a new class of sensor and are expected to open opportunities in plant virus detection, but as yet there have been very few practical applications (Table 3). In this article, the details of those cases and their significance for the future of plant virus detection will be discussed.
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Affiliation(s)
| | - Cheolho Lee
- Corresponding author. Phone) +82-2-940-7188, E-mail)
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Highly sensitive detection of influenza virus by boron-doped diamond electrode terminated with sialic acid-mimic peptide. Proc Natl Acad Sci U S A 2016; 113:8981-4. [PMID: 27457924 DOI: 10.1073/pnas.1603609113] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The progression of influenza varies according to age and the presence of an underlying disease; appropriate treatment is therefore required to prevent severe disease. Anti-influenza therapy, such as with neuraminidase inhibitors, is effective, but diagnosis at an early phase of infection before viral propagation is critical. Here, we show that several dozen plaque-forming units (pfu) of influenza virus (IFV) can be detected using a boron-doped diamond (BDD) electrode terminated with a sialic acid-mimic peptide. The peptide was used instead of the sialyloligosaccharide receptor, which is the common receptor of influenza A and B viruses required during the early phase of infection, to capture IFV particles. The peptide, which was previously identified by phage-display technology, was immobilized by click chemistry on the BDD electrode, which has excellent electrochemical characteristics such as low background current and weak adsorption of biomolecules. Electrochemical impedance spectroscopy revealed that H1N1 and H3N2 IFVs were detectable in the range of 20-500 pfu by using the peptide-terminated BDD electrode. Our results demonstrate that the BDD device integrated with the receptor-mimic peptide has high sensitivity for detection of a low number of virus particles in the early phase of infection.
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Souii A, M’hadheb-Gharbi MB, Gharbi J. Nucleic acid-based biotechnologies for food-borne pathogen detection using routine time-intensive culture-based methods and fast molecular diagnostics. Food Sci Biotechnol 2016; 25:11-20. [PMID: 30263230 PMCID: PMC6049363 DOI: 10.1007/s10068-016-0002-1] [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] [Received: 06/16/2015] [Revised: 09/22/2015] [Accepted: 09/23/2015] [Indexed: 01/23/2023] Open
Abstract
Diseases caused by food-borne pathogens constitute a major burden to consumers, food business operators, and national governments. Bacterial and viral pathogens are the major biotic factors influencing food safety. A vast array of culture dependent analytical methods and protocols have been developed. Recently, nucleic acid-based methods have begun to replace or complement culture-based methods for routine use in food control laboratories. Basic advantages provided by nucleic acid-based technologies are faster speed and more information, such as sub-species identification, antibiotic resistance, and food microbiology. In particular, PCR and alternative methods have been developed to a stage that provides good speed, sensitivity, specificity, and reproducibility with minimized risk of carryover contamination. This review briefly summarizes currently available and developing molecular technologies that may be candidates for involvement in microbiological molecular diagnostic methods in the next decade.
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Affiliation(s)
- Amira Souii
- The Higher Institute of Applied Biological Sciences of Tunis, University of Tunis El manar-Tunis, Rommana, 1068 Tunisia
- The Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir, 5000 Tunisia
| | | | - Jawhar Gharbi
- The Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir, 5000 Tunisia
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Nakano S, Tsukimura T, Togawa T, Ohashi T, Kobayashi M, Takayama K, Kobayashi Y, Abiko H, Satou M, Nakahata T, Warnock DG, Sakuraba H, Shibasaki F. Rapid Immunochromatographic Detection of Serum Anti-α-Galactosidase A Antibodies in Fabry Patients after Enzyme Replacement Therapy. PLoS One 2015; 10:e0128351. [PMID: 26083343 PMCID: PMC4470989 DOI: 10.1371/journal.pone.0128351] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 04/26/2015] [Indexed: 11/18/2022] Open
Abstract
We developed an immunochromatography-based assay for detecting antibodies against recombinant α-galactosidase A proteins in serum. The evaluation of 29 serum samples from Fabry patients, who had received enzyme replacement therapy with agalsidase alpha and/or agalsidase beta, was performed by means of this assay method, and the results clearly revealed that the patients exhibited the same level of antibodies against both agalsidase alpha and agalsidase beta, regardless of the species of recombinant α-galactosidase A used for enzyme replacement therapy. A conventional enzyme-linked immunosorbent assay supported the results. Considering these, enzyme replacement therapy with agalsidase alpha or agalsidase beta would generate antibodies against the common epitopes in both agalsidase alpha and agalsidase beta. Most of the patients who showed immunopositive reaction exhibited classic Fabry phenotype and harbored gene mutations affecting biosynthesis of α-galactosidase A. As immunochromatography is a handy and simple assay system which can be available at bedside, this assay method would be extremely useful for quick evaluation or first screening of serum antibodies against agalsidase alpha or agalsidase beta in Fabry disease with enzyme replacement therapy.
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Affiliation(s)
- Sachie Nakano
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo156-8506, Japan
- Synthera Technologies Co., Ltd., 4-5-1 Honkomagome, Bunkyo-ku, Tokyo 113-0021, Japan
| | - Takahiro Tsukimura
- Department of Functional Bioanalysis, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Tadayasu Togawa
- Department of Functional Bioanalysis, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Toya Ohashi
- Department of Gene Therapy, Institute of DNA Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Masahisa Kobayashi
- Department of Pediatrics, The Jikei University School of Medicine, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | | | | | - Hiroshi Abiko
- Nihonkai General Hospital, 30 Akiho, Sakata, Yamagata 998-8501, Japan
| | - Masatsugu Satou
- Koujin-kai Kimachi Hospital, 1-7-13 Kimachi-dori, Aoba-ku, Sendai, Miyagi 980-0801, Japan
| | - Tohru Nakahata
- Mutsu General Hospital, 1-2-8 Ogawa-Cho, Mutsu, Aomori 035-8601, Japan
| | - David G. Warnock
- Division of Nephrology, The University of Alabama School of Medicine, 619S 19 Street, Birmingham, AL 35249, United States of America
| | - Hitoshi Sakuraba
- Department of Clinical Genetics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Futoshi Shibasaki
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo156-8506, Japan
- * E-mail:
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Fluorescent immunochromatography for rapid and sensitive typing of seasonal influenza viruses. PLoS One 2015; 10:e0116715. [PMID: 25650570 PMCID: PMC4317186 DOI: 10.1371/journal.pone.0116715] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 12/13/2014] [Indexed: 02/03/2023] Open
Abstract
Lateral flow tests also known as Immunochromatography (IC) is an antigen-detection method conducted on a nitrocellulose membrane that can be completed in less than 20 min. IC has been used as an important rapid test for clinical diagnosis and surveillance of influenza viruses, but the IC sensitivity is relatively low (approximately 60%) and the limit of detection (LOD) is as low as 10³ pfu per reaction. Recently, we reported an improved IC assay using antibodies conjugated with fluorescent beads (fluorescent immunochromatography; FLIC) for subtyping H5 influenza viruses (FLIC-H5). Although the FLIC strip must be scanned using a fluorescent reader, the sensitivity (LOD) is significantly improved over that of conventional IC methods. In addition, the antibodies which are specific against the subtypes of influenza viruses cannot be available for the detection of other subtypes when the major antigenicity will be changed. In this study, we established the use of FLIC to type seasonal influenza A and B viruses (FLIC-AB). This method has improved sensitivity to 100-fold higher than that of conventional IC methods when we used several strains of influenza viruses. In addition, FLIC-AB demonstrated the ability to detect influenza type A and influenza type B viruses from clinical samples with high sensitivity and specificity (Type A: sensitivity 98.7% (74/75), specificity 100% (54/54), Type B: sensitivity 100% (90/90), specificity 98.2% (54/55) in nasal swab samples) in comparison to the results of qRT-PCR. And furthermore, FLIC-AB performs better in the detection of early stage infection (under 13h) than other conventional IC methods. Our results provide new strategies to prevent the early-stage transmission of influenza viruses in humans during both seasonal outbreaks and pandemics.
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14
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Watanabe Y, Ito T, Ibrahim MS, Arai Y, Hotta K, Phuong HVM, Hang NLK, Mai LQ, Soda K, Yamaoka M, Poetranto ED, Wulandari L, Hiramatsu H, Daidoji T, Kubota-Koketsu R, Sriwilaijaroen N, Nakaya T, Okuno Y, Takahashi T, Suzuki T, Ito T, Hotta H, Yamashiro T, Hayashi T, Morita K, Ikuta K, Suzuki Y. A novel immunochromatographic system for easy-to-use detection of group 1 avian influenza viruses with acquired human-type receptor binding specificity. Biosens Bioelectron 2014; 65:211-9. [PMID: 25461160 PMCID: PMC7125538 DOI: 10.1016/j.bios.2014.10.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 10/09/2014] [Accepted: 10/09/2014] [Indexed: 02/06/2023]
Abstract
A switch of viral hemagglutinin receptor binding specificity from bird-type α2,3- to human-type α2,6-linked sialic acid is necessary for an avian influenza virus to become a pandemic virus. In this study, an easy-to-use strip test to detect receptor binding specificity of influenza virus was developed. A biotinylated anti-hemagglutinin antibody that bound a broad range of group 1 influenza A viruses and latex-conjugated α2,3 (blue) and α2,6 (red) sialylglycopolymers were used in an immunochromatographic strip test, with avidin and lectin immobilized on a nitrocellulose membrane at test and control lines, respectively. Accumulation of a sialylglycopolymer–virus–antibody complex at the test line was visualized by eye. The strip test could be completed in 30 min and did not require special equipment or skills, thereby avoiding some disadvantages of current methods for analyzing receptor binding specificity of influenza virus. The strip test could detect the receptor binding specificity of a wide range of influenza viruses, as well as small increases in the binding affinity of variant H5N1 viruses to α2,6 sialylglycans at viral titers >128 hemagglutination units. The strip test results were in agreement with those of ELISA virus binding assays, with correlations >0.95. In conclusion, the immunochromatographic strip test developed in this study should be useful for monitoring potential changes in the receptor binding specificity of group 1 influenza A viruses in the field. A novel immunochromatographic strip test system was developed. The strip test was developed to detect influenza virus receptor binding specificity. The strip test was applicable to a broad range of group 1 influenza A viruses. The strip detected faint increases in human-type specificity of variant H5N1 viruses. The system could be applied for easy monitoring the viral pandemic potential.
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Affiliation(s)
- Yohei Watanabe
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan.
| | - Tetsuo Ito
- KAINOS Laboratories, Inc., Tokyo 113-0033, Japan
| | - Madiha S Ibrahim
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Yasuha Arai
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Kozue Hotta
- Center for Infectious Disease Research in Asia and Africa, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan; Vietnam Research Station, Nagasaki University, c/o National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | - Hoang Vu Mai Phuong
- Department of Virology, National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | - Nguyen Le Khanh Hang
- Department of Virology, National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | - Le Quynh Mai
- Department of Virology, National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | - Kosuke Soda
- Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Masaoki Yamaoka
- Center for Infectious Diseases, Graduate School of Medicine, Kobe University, Hyogo 650-0017, Japan
| | - Emmanuel Djoko Poetranto
- Indonesia-Japan Collaborative Research Center, Institute of Tropical Disease, Airlangga University, Surabaya 60115, Indonesia
| | - Laksmi Wulandari
- Indonesia-Japan Collaborative Research Center, Institute of Tropical Disease, Airlangga University, Surabaya 60115, Indonesia
| | - Hiroaki Hiramatsu
- Health Science Hills, College of Life and Health Sciences, Chubu University, Aichi 487-8501, Japan
| | - Tomo Daidoji
- Department of Infectious Diseases, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Ritsuko Kubota-Koketsu
- Kanonji Institute, The Research Foundation for Microbial Diseases of Osaka University, Kagawa 768-0061, Japan
| | - Nongluk Sriwilaijaroen
- Department of Preclinical Sciences, Faculty of Medicine, Thammasat University, Pathumthani, 12120, Thailand; Health Science Hills, College of Life and Health Sciences, Chubu University, Aichi 487-8501, Japan
| | - Takaaki Nakaya
- Department of Infectious Diseases, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yoshinobu Okuno
- Kanonji Institute, The Research Foundation for Microbial Diseases of Osaka University, Kagawa 768-0061, Japan
| | - Tadanobu Takahashi
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Takashi Suzuki
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Toshihiro Ito
- Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Hak Hotta
- Center for Infectious Diseases, Graduate School of Medicine, Kobe University, Hyogo 650-0017, Japan
| | - Tetsu Yamashiro
- Center for Infectious Disease Research in Asia and Africa, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan; Vietnam Research Station, Nagasaki University, c/o National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam
| | | | - Kouichi Morita
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan
| | - Kazuyoshi Ikuta
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Yasuo Suzuki
- Health Science Hills, College of Life and Health Sciences, Chubu University, Aichi 487-8501, Japan.
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15
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Evaluation of the Alere I influenza A&B nucleic acid amplification test by use of respiratory specimens collected in viral transport medium. J Clin Microbiol 2014; 52:3992-5. [PMID: 25210070 DOI: 10.1128/jcm.01639-14] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The Alere i Influenza A&B assay is a newly developed rapid molecular assay which has the potential to generate results within 15 min from sample collection. In this study, we evaluated the Alere i Influenza A&B assay by using salvaged frozen respiratory specimens that were collected in viral transport medium from children ages 10 months to 19 years. Alere i Influenza A&B assay test results were compared with viral culture and ProFlu(+) real-time reverse transcription-PCR (RT-PCR) assay results. We found that the overall sensitivity and specificity of the Alere i Influenza A&B assay were 93.3% and 94.5% for the detection of influenza A virus and 100% and 100% for the detection of influenza B virus, respectively, compared to viral culture. In comparison to ProFlu(+) real-time RT-PCR, overall sensitivity and specificity of the Alere i Influenza A&B assay for the detection of influenza A virus were 88.8% and 98.3% and 100% and 100% for detecting influenza B virus. Overall, the Alere i Influenza A&B assay performed well compared to either virus cell culture or RT-PCR.
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16
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Sakurai A, Takayama K, Nomura N, Yamamoto N, Sakoda Y, Kobayashi Y, Kida H, Shibasaki F. Multi-colored immunochromatography using nanobeads for rapid and sensitive typing of seasonal influenza viruses. J Virol Methods 2014; 209:62-8. [PMID: 25218175 DOI: 10.1016/j.jviromet.2014.08.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 08/19/2014] [Accepted: 08/28/2014] [Indexed: 12/09/2022]
Abstract
Immunochromatography (IC) is an antigen-detection assay that plays an important role in the rapid diagnosis of influenza viruses because of its rapid turnaround and ease of use. Despite the usefulness of IC, the limit of detection of common IC kits is as high as 10(3)-10(4) plaque forming units (pfu) per reaction, resulting in their limited sensitivities. Early diagnosis within 24h would provide more appropriate timing of treatment. In this study, a multi-colored NanoAct™ bead IC was established to detect seasonal influenza viruses. This method has approximately 10-fold higher sensitivity than that of colloidal gold or colored latex bead IC assays, and does not require specific instruments. More notably, NanoAct™ bead IC can distinguish influenza A and B viruses from clinical samples with a straightforward readout composed of colored lines. Our results will provide new strategies for the diagnosis, treatment, and a chance to survey of influenza viruses in developing countries and in the field research.
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Affiliation(s)
- Akira Sakurai
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science, 2-1-6, Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan
| | | | - Namiko Nomura
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science, 2-1-6, Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan
| | - Naoki Yamamoto
- Laboratory of Microbiology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, N18 W9, Kita-ku, Sapporo 060-0818, Japan
| | - Yoshihiro Sakoda
- Laboratory of Microbiology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, N18 W9, Kita-ku, Sapporo 060-0818, Japan
| | | | - Hiroshi Kida
- Laboratory of Microbiology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, N18 W9, Kita-ku, Sapporo 060-0818, Japan
| | - Futoshi Shibasaki
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science, 2-1-6, Kamikitazawa, Setagaya-ku, Tokyo 156-8506, Japan.
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Multicenter clinical evaluation of the novel Alere™ i Influenza A&B isothermal nucleic acid amplification test. J Clin Virol 2014; 61:81-6. [PMID: 24973813 DOI: 10.1016/j.jcv.2014.06.001] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 05/29/2014] [Accepted: 06/01/2014] [Indexed: 01/14/2023]
Abstract
BACKGROUND Rapid detection of influenza infection is important for patient management and timely anti-viral therapy. Rapid antigen detection tests for influenza have inferior sensitivity when compared to nucleic acid-based amplification tests. An isothermal nucleic acid amplification test that offers the potential for rapid molecular testing at the clinical point-of-care with simple equipment can improve influenza detection rates. OBJECTIVES To evaluate the performance of Alere™ i Influenza A&B isothermal nucleic acid amplification test to detect influenza A and B in comparison to viral cell culture as reference method. STUDY DESIGN A prospective, multicenter, clinical study to evaluate the clinical performance of the Alere™ i Influenza A&B assay in a point-of-care setting using prospectively enrolled specimens from both children and adults was conducted in seven sites. RESULTS In comparison with viral cell culture, the overall sensitivity and specificity of the Alere™ i Influenza A&B assay was 97.8% and 85.6% for the detection of influenza A, and 91.8% and 96.3% for the detection of influenza B, respectively. Following resolution of discrepant results by real-time RT-PCR the sensitivity and specificity of the Alere™ i Influenza A&B assay improved to 99.3% and 98.1% for influenza A, and 97.6% and 100% for influenza B, respectively. CONCLUSIONS The Alere™ i Influenza A&B isothermal nucleic acid amplification test is an ideal point-of-care test for influenza detection in children and adults due to its high sensitivity and specificity and ability to generate results within 15 min from specimen receipt.
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18
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Chen Y, Liu T, Cai L, Du H, Li M. A one-step RT-PCR array for detection and differentiation of zoonotic influenza viruses H5N1, H9N2, and H1N1. J Clin Lab Anal 2014; 27:450-60. [PMID: 24218127 DOI: 10.1002/jcla.21627] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 04/30/2013] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Rapid and comprehensive pathogen identification is crucial in zoonotic influenza diagnosis. METHODS By optimizing the design of primers and probes and reverse-transcriptase polymerase chain reaction (RT-PCR) conditions, we achieved simultaneous detection of multiple influenza and zoonotic influenza viruses, including H1N1, H5N1, and H9N2 strains, in a one-step, quantitative real-time RT-PCR array (rRT-PCR array) of RNA from multiple influenza strains utilizing a single set of conditions for RT-PCR amplification. The target sequences from all targeted zoonotic influenza viruses were cloned into recombinant RNA virus particles, which were used to evaluate sensitivity, specificity, and reproducibility of the zoonotic influenza viruses RT-PCR array. RESULTS The detection limit of the array was shown to be between 10(0) and 10(1) copies per reaction, and the standard curve demonstrated a linear range from 10 to 10(6) copies. Thus, the analytical sensitivity of this zoonotic influenza viruses RT-PCR array is 10-100 times higher than conventional RT-PCR. Specificity of the one-step zoonotic influenza viruses RT-PCR array was verified by comparison of results obtained with retroviral-like particles (RVPs), which contained RNA from isolates of seasonal influenza viruses, zoonotic influenza viruses, and other pathogens known to cause acute respiratory disease. CONCLUSION The high sensitivity, rapidity, reproducibility, and specificity of this zoonotic influenza viruses rRT-PCR array has been verified as being sufficient to detect the presence of multiple zoonotic influenza viruses in a single assay. The zoonotic influenza viruses RT-PCR array might provide rapid identification of emergent zoonotic influenza viruses strains during influenza outbreaks and disease surveillance initiatives.
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Affiliation(s)
- Yao Chen
- School of Biotechnology, Southern Medical University, Guangzhou, People's Republic of China
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19
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20
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Sakurai A, Takayama K, Nomura N, Munakata T, Yamamoto N, Tamura T, Yamada J, Hashimoto M, Kuwahara K, Sakoda Y, Suda Y, Kobayashi Y, Sakaguchi N, Kida H, Kohara M, Shibasaki F. Broad-spectrum detection of H5 subtype influenza A viruses with a new fluorescent immunochromatography system. PLoS One 2013; 8:e76753. [PMID: 24223117 PMCID: PMC3819354 DOI: 10.1371/journal.pone.0076753] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 08/29/2013] [Indexed: 11/19/2022] Open
Abstract
Immunochromatography (IC) is an antigen-detection assay that plays an important role in the rapid diagnosis of influenza virus because the protocol is short time and easy to use. Despite the usability of IC, the sensitivity is approximately 10(3) pfu per reaction. In addition, antigen-antibody interaction-based method cannot be used for the detection of influenza viruses with major antigenic change. In this study, we established the use of fluorescent immunochromatography (FLIC) to detect a broad spectrum of H5 subtype influenza A viruses. This method has improved sensitivity 10-100 fold higher than traditional IC because of the use of fluorescent conjugated beads. Our Type-E FLIC kit detected all of the H5 subtype influenza viruses that were examined, as well as recombinant hemagglutinin (HA) proteins (rHAs) belonging to the Eurasian H5 subtype viruses and the Type-N diagnosed North American H5 subtype influenza A viruses. Thus, this kit has the improved potential to detect H5 subtype influenza viruses of different clades with both Type-E and Type-N FLIC kits. Compared with PCR-based diagnosis, FLIC has a strong advantage in usability, because the sample preparation required for FLIC is only mix-and-drop without any additional steps such as RNA extraction. Our results can provide new strategies against the spread and transmission of HPAI H5N1 viruses in birds and mammals including humans.
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MESH Headings
- Animals
- Antibodies, Immobilized/chemistry
- Antibodies, Viral/chemistry
- Antibody Specificity
- Chromatography, Affinity
- Dogs
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Humans
- Immunoassay
- Influenza A Virus, H5N1 Subtype/immunology
- Influenza A Virus, H5N1 Subtype/isolation & purification
- Influenza, Human/diagnosis
- Influenza, Human/virology
- Limit of Detection
- Madin Darby Canine Kidney Cells
- Reagent Kits, Diagnostic
- Spectrometry, Fluorescence
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Affiliation(s)
- Akira Sakurai
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya-ku, Tokyo, Japan
| | | | - Namiko Nomura
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya-ku, Tokyo, Japan
| | - Tsubasa Munakata
- Department of Microbiology and Cell Biology, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan
| | - Naoki Yamamoto
- Laboratory of Microbiology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Kita-ku, Sapporo, Japan
| | | | | | - Masako Hashimoto
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya-ku, Tokyo, Japan
| | - Kazuhiko Kuwahara
- Department of Immunology, Graduate School of Medical Sciences, Kumamoto University, Honjo, Chuo-ku, Kumamoto, Japan
| | - Yoshihiro Sakoda
- Laboratory of Microbiology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Kita-ku, Sapporo, Japan
| | | | | | - Nobuo Sakaguchi
- Department of Immunology, Graduate School of Medical Sciences, Kumamoto University, Honjo, Chuo-ku, Kumamoto, Japan
| | - Hiroshi Kida
- Laboratory of Microbiology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Kita-ku, Sapporo, Japan
| | - Michinori Kohara
- Department of Microbiology and Cell Biology, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan
| | - Futoshi Shibasaki
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya-ku, Tokyo, Japan
- * E-mail:
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