1
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Pirolo M, Menezes M, Poulsen M, Søndergaard V, Damborg P, Poirier AC, La Ragione R, Schjærff M, Guardabassi L. A LAMP point-of-care test to guide antimicrobial choice for treatment of Staphylococcus pseudintermedius pyoderma in dogs. Vet J 2024; 304:106105. [PMID: 38547963 DOI: 10.1016/j.tvjl.2024.106105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/22/2024] [Accepted: 03/22/2024] [Indexed: 04/16/2024]
Abstract
Staphylococcus pseudintermedius is the most common cause of pyoderma in dogs. We validated a point-of-care (PoC) test based on colorimetric loop-mediated isothermal amplification (LAMP) for rapid S. pseudintermedius identification and susceptibility testing for first line antimicrobials for systemic treatment of canine pyoderma, i.e., lincosamides, first generation cephalosporins and amoxicillin clavulanate. Newly designed LAMP primers targeting clinically relevant resistance genes were combined with a previously validated set of primers targeting spsL for species identification. After laboratory validation on 110 clinical isolates, we assessed the performance of the test on 101 clinical specimens using routine culture and susceptibility testing as a reference standard. The average hands-on and turnaround times for the PoC test were 30 and 90 min, respectively. The assay showed sensitivity and specificity near 100% for both species identification and susceptibility testing when performed on bacterial cultures or clinical specimens in the laboratory. However, the PoC test yielded less accurate results when performed on-site by clinical staff (92% sensitivity and 64% specificity for species identification, 67% sensitivity and 96% specificity for β-lactam susceptibility, and 83% sensitivity and 71% specificity for lincosamide susceptibility). These results indicate that the PoC test should be adapted to a user-friendly technology to facilitate performance and interpretation of results by clinical staff. If properly developed, the test would allow veterinarians to gain rapid information on antimicrobial choice, limiting the risk of treatment failure and facilitating adherence to antimicrobial use guidelines in small animal veterinary dermatology.
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Affiliation(s)
- M Pirolo
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C 1870, Denmark
| | - M Menezes
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C 1870, Denmark
| | - M Poulsen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C 1870, Denmark
| | - V Søndergaard
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C 1870, Denmark
| | - P Damborg
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C 1870, Denmark
| | - A C Poirier
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford GU2 7AL, UK
| | - R La Ragione
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford GU2 7AL, UK; Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford GU2 7XH, UK
| | - M Schjærff
- Department of Veterinary Clinical Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - L Guardabassi
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C 1870, Denmark.
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2
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Poirier AC, Riaño Moreno RD, Takaindisa L, Carpenter J, Mehat JW, Haddon A, Rohaim MA, Williams C, Burkhart P, Conlon C, Wilson M, McClumpha M, Stedman A, Cordoni G, Branavan M, Tharmakulasingam M, Chaudhry NS, Locker N, Fernando A, Balachandran W, Bullen M, Collins N, Rimer D, Horton DL, Munir M, La Ragione RM. Corrigendum: VIDIIA Hunter: a low-cost, smartphone connected, artificial intelligence-assisted COVID-19 rapid diagnostic platform approved for medical use in the UK. Front Mol Biosci 2023; 10:1325104. [PMID: 38028554 PMCID: PMC10646178 DOI: 10.3389/fmolb.2023.1325104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fmolb.2023.1144001.].
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Affiliation(s)
- Aurore C. Poirier
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | | | - Leona Takaindisa
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Jessie Carpenter
- VIDIIA Ltd., Surrey Technology Centre, Guildford, United Kingdom
| | - Jai W. Mehat
- Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, United Kingdom
| | - Abi Haddon
- Berkshire and Surrey Pathology Services, Molecular Diagnostics, Royal Surrey County Hospital, Guildford, United Kingdom
| | - Mohammed A. Rohaim
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster, United Kingdom
| | - Craig Williams
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS Foundation Trust, Kendal, United Kingdom
| | - Peter Burkhart
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS Foundation Trust, Kendal, United Kingdom
| | - Chris Conlon
- GB Electronics (UK) Ltd., Worthing, United Kingdom
| | | | | | - Anna Stedman
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Guido Cordoni
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Manoharanehru Branavan
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, United Kingdom
| | | | - Nouman S. Chaudhry
- Centre for Vision, Speech and Signal Processing, University of Surrey, Guildford, United Kingdom
| | - Nicolas Locker
- Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, United Kingdom
| | - Anil Fernando
- Centre for Vision, Speech and Signal Processing, University of Surrey, Guildford, United Kingdom
| | - Wamadeva Balachandran
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Mark Bullen
- GB Electronics (UK) Ltd., Worthing, United Kingdom
| | - Nadine Collins
- Berkshire and Surrey Pathology Services, Molecular Diagnostics, Royal Surrey County Hospital, Guildford, United Kingdom
| | - David Rimer
- VIDIIA Ltd., Surrey Technology Centre, Guildford, United Kingdom
| | - Daniel L. Horton
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Muhammad Munir
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster, United Kingdom
| | - Roberto M. La Ragione
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
- Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, United Kingdom
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3
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Poirier AC, Riaño Moreno RD, Takaindisa L, Carpenter J, Mehat JW, Haddon A, Rohaim MA, Williams C, Burkhart P, Conlon C, Wilson M, McClumpha M, Stedman A, Cordoni G, Branavan M, Tharmakulasingam M, Chaudhry NS, Locker N, Fernando A, Balachandran W, Bullen M, Collins N, Rimer D, Horton DL, Munir M, La Ragione RM. VIDIIA Hunter diagnostic platform: a low-cost, smartphone connected, artificial intelligence-assisted COVID-19 rapid diagnostics approved for medical use in the UK. Front Mol Biosci 2023; 10:1144001. [PMID: 37842636 PMCID: PMC10572354 DOI: 10.3389/fmolb.2023.1144001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 09/12/2023] [Indexed: 10/17/2023] Open
Abstract
Introduction: Accurate and rapid diagnostics paired with effective tracking and tracing systems are key to halting the spread of infectious diseases, limiting the emergence of new variants and to monitor vaccine efficacy. The current gold standard test (RT-qPCR) for COVID-19 is highly accurate and sensitive, but is time-consuming, and requires expensive specialised, lab-based equipment. Methods: Herein, we report on the development of a SARS-CoV-2 (COVID-19) rapid and inexpensive diagnostic platform that relies on a reverse-transcription loop-mediated isothermal amplification (RT-LAMP) assay and a portable smart diagnostic device. Automated image acquisition and an Artificial Intelligence (AI) deep learning model embedded in the Virus Hunter 6 (VH6) device allow to remove any subjectivity in the interpretation of results. The VH6 device is also linked to a smartphone companion application that registers patients for swab collection and manages the entire process, thus ensuring tests are traced and data securely stored. Results: Our designed AI-implemented diagnostic platform recognises the nucleocapsid protein gene of SARS-CoV-2 with high analytical sensitivity and specificity. A total of 752 NHS patient samples, 367 confirmed positives for coronavirus disease (COVID-19) and 385 negatives, were used for the development and validation of the test and the AI-assisted platform. The smart diagnostic platform was then used to test 150 positive clinical samples covering a dynamic range of clinically meaningful viral loads and 250 negative samples. When compared to RT-qPCR, our AI-assisted diagnostics platform was shown to be reliable, highly specific (100%) and sensitive (98-100% depending on viral load) with a limit of detection of 1.4 copies of RNA per µL in 30 min. Using this data, our CE-IVD and MHRA approved test and associated diagnostic platform has been approved for medical use in the United Kingdom under the UK Health Security Agency's Medical Devices (Coronavirus Test Device Approvals, CTDA) Regulations 2022. Laboratory and in-silico data presented here also indicates that the VIDIIA diagnostic platform is able to detect the main variants of concern in the United Kingdom (September 2023). Discussion: This system could provide an efficient, time and cost-effective platform to diagnose SARS-CoV-2 and other infectious diseases in resource-limited settings.
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Affiliation(s)
- Aurore C. Poirier
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | | | - Leona Takaindisa
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Jessie Carpenter
- VIDIIA Ltd., Surrey Technology Centre, Guildford, United Kingdom
| | - Jai W. Mehat
- Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, United Kingdom
| | - Abi Haddon
- Berkshire and Surrey Pathology Services, Molecular Diagnostics, Royal Surrey County Hospital, Guildford, United Kingdom
| | - Mohammed A. Rohaim
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster, United Kingdom
| | - Craig Williams
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS Foundation Trust, Kendal, United Kingdom
| | - Peter Burkhart
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS Foundation Trust, Kendal, United Kingdom
| | - Chris Conlon
- GB Electronics (UK) Ltd, Worthing, United Kingdom
| | | | | | - Anna Stedman
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Guido Cordoni
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Manoharanehru Branavan
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, United Kingdom
| | | | - Nouman S. Chaudhry
- Centre for Vision, Speech and Signal Processing, University of Surrey, Guildford, United Kingdom
| | - Nicolas Locker
- Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, United Kingdom
| | - Anil Fernando
- Centre for Vision, Speech and Signal Processing, University of Surrey, Guildford, United Kingdom
| | - Wamadeva Balachandran
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Mark Bullen
- GB Electronics (UK) Ltd, Worthing, United Kingdom
| | - Nadine Collins
- Berkshire and Surrey Pathology Services, Molecular Diagnostics, Royal Surrey County Hospital, Guildford, United Kingdom
| | - David Rimer
- VIDIIA Ltd., Surrey Technology Centre, Guildford, United Kingdom
| | - Daniel L. Horton
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Muhammad Munir
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster, United Kingdom
| | - Roberto M. La Ragione
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
- Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, United Kingdom
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4
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Hassan MM, Grist LF, Poirier AC, La Ragione RM. JMM profile: Loop-mediated isothermal amplification (LAMP): for the rapid detection of nucleic acid targets in resource-limited settings. J Med Microbiol 2022; 71. [PMID: 35588088 DOI: 10.1099/jmm.0.001522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Loop-mediated isothermal amplification (LAMP) is a rapid alternative to PCR, in which the reaction occurs at one temperature and uses a polymerase with high displacement activity, e.g. Bacillus stearothermophilus DNA polymerase I (Bst) or homologues. Since the discovery of LAMP in 2000, several applications have been developed to employ this technique in the rapid detection of nucleic acid targets and enhance its performance. Improvements to the LAMP technique and a variety of innovative detection methods have led to its application for a wide range of targets in medical and veterinary microbiology, particularly in resource-poor settings. The key advantages of LAMP-based diagnostics include the ability to rapidly detect target nucleic acid sequences within 30 min and its ease of use, facilitating its application in field, bedside, pen-side, point-of-care and point-of-need diagnostic settings. LAMP can be a valuable tool to aid in the detection and management of disease outbreaks.
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Affiliation(s)
- Marwa M Hassan
- Department of Pathology and Infectious Diseases, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK
| | - Lucy F Grist
- Department of Pathology and Infectious Diseases, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK
| | - Aurore C Poirier
- Department of Pathology and Infectious Diseases, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK
| | - Roberto M La Ragione
- Department of Pathology and Infectious Diseases, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK.,School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK
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5
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Poirier AC, Kuang D, Siedler BS, Borah K, Mehat JW, Liu J, Tai C, Wang X, van Vliet AHM, Ma W, Jenkins DR, Clark J, La Ragione RM, Qu J, McFadden J. Development of Loop-Mediated Isothermal Amplification Rapid Diagnostic Assays for the Detection of Klebsiella pneumoniae and Carbapenemase Genes in Clinical Samples. Front Mol Biosci 2022; 8:794961. [PMID: 35223985 PMCID: PMC8864245 DOI: 10.3389/fmolb.2021.794961] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/30/2021] [Indexed: 12/16/2022] Open
Abstract
Klebsiella pneumoniae is an important pathogenic bacterium commonly associated with human healthcare and community-acquired infections. In recent years, K. pneumoniae has become a significant threat to global public and veterinary health, because of its high rates of antimicrobial resistance (AMR). Early diagnosis of K. pneumoniae infection and detection of any associated AMR would help to accelerate directed therapy and reduce the risk of the emergence of multidrug-resistant isolates. In this study, we identified three target genes (yhaI, epsL, and xcpW) common to K. pneumoniae isolates from both China and Europe and designed loop-mediated isothermal amplification (LAMP) assays for the detection of K. pneumoniae in clinical samples. We also designed LAMP assays for the detection of five AMR genes commonly associated with K. pneumoniae. The LAMP assays were validated on a total of 319 type reference strains and clinical isolates of diverse genetic backgrounds, in addition to 40 clinical human sputum samples, and were shown to be reliable, highly specific, and sensitive. For the K. pneumoniae–specific LAMP assay, the calculated sensitivity, specificity, and positive and negative predictive values (comparison with culture and matrix-assisted laser desorption/ionization–time of flight mass spectrometry) were all 100% on clinical isolates and, respectively, of 100%, 91%, and 90%, and 100% when tested on clinical sputum samples, while being significantly faster than the reference methods. For the blaKPC and other carbapenemases’ LAMP assays, the concordance between the LAMP results and the references methods (susceptibility tests) was 100%, on both pure cultures (n = 125) and clinical samples (n = 18). In conclusion, we developed highly sensitive and specific LAMP assays for the clinical identification of K. pneumoniae and detection of carbapenem resistance.
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Affiliation(s)
- Aurore C. Poirier
- Department of Pathology and Infectious Diseases, Faculty of Health and Medical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Dai Kuang
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, School of Medicine, Institute of Respiratory Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Bianca S. Siedler
- Faculty of Health and Medical Sciences, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - Khushboo Borah
- Faculty of Health and Medical Sciences, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - Jai W. Mehat
- Faculty of Health and Medical Sciences, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
- Centre for Microbial Genomics and Animal Microbiome Research, Department of Pathology and Infectious Diseases, Faculty of Health and Medical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Jialin Liu
- Department of Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Cui Tai
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoli Wang
- Department of Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Arnoud H. M. van Vliet
- Department of Pathology and Infectious Diseases, Faculty of Health and Medical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
- Centre for Microbial Genomics and Animal Microbiome Research, Department of Pathology and Infectious Diseases, Faculty of Health and Medical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Wei Ma
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - David R. Jenkins
- Department of Medical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
| | - John Clark
- Department of Medical Microbiology, Epsom and St Helier University Hospitals NHS Trust, Carshalton, United Kingdom
| | - Roberto M. La Ragione
- Department of Pathology and Infectious Diseases, Faculty of Health and Medical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
- Faculty of Health and Medical Sciences, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - Jieming Qu
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, School of Medicine, Institute of Respiratory Diseases, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Jieming Qu, ; Johnjoe McFadden,
| | - Johnjoe McFadden
- Faculty of Health and Medical Sciences, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
- *Correspondence: Jieming Qu, ; Johnjoe McFadden,
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6
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Rohaim MA, Clayton E, Sahin I, Vilela J, Khalifa ME, Al-Natour MQ, Bayoumi M, Poirier AC, Branavan M, Tharmakulasingam M, Chaudhry NS, Sodi R, Brown A, Burkhart P, Hacking W, Botham J, Boyce J, Wilkinson H, Williams C, Whittingham-Dowd J, Shaw E, Hodges M, Butler L, Bates MD, La Ragione R, Balachandran W, Fernando A, Munir M. Artificial Intelligence-Assisted Loop Mediated Isothermal Amplification (AI-LAMP) for Rapid Detection of SARS-CoV-2. Viruses 2020; 12:v12090972. [PMID: 32883050 PMCID: PMC7552048 DOI: 10.3390/v12090972] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/22/2020] [Accepted: 08/24/2020] [Indexed: 01/13/2023] Open
Abstract
Until vaccines and effective therapeutics become available, the practical solution to transit safely out of the current coronavirus disease 19 (CoVID-19) lockdown may include the implementation of an effective testing, tracing and tracking system. However, this requires a reliable and clinically validated diagnostic platform for the sensitive and specific identification of SARS-CoV-2. Here, we report on the development of a de novo, high-resolution and comparative genomics guided reverse-transcribed loop-mediated isothermal amplification (LAMP) assay. To further enhance the assay performance and to remove any subjectivity associated with operator interpretation of results, we engineered a novel hand-held smart diagnostic device. The robust diagnostic device was further furnished with automated image acquisition and processing algorithms and the collated data was processed through artificial intelligence (AI) pipelines to further reduce the assay run time and the subjectivity of the colorimetric LAMP detection. This advanced AI algorithm-implemented LAMP (ai-LAMP) assay, targeting the RNA-dependent RNA polymerase gene, showed high analytical sensitivity and specificity for SARS-CoV-2. A total of ~200 coronavirus disease (CoVID-19)-suspected NHS patient samples were tested using the platform and it was shown to be reliable, highly specific and significantly more sensitive than the current gold standard qRT-PCR. Therefore, this system could provide an efficient and cost-effective platform to detect SARS-CoV-2 in resource-limited laboratories.
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Affiliation(s)
- Mohammed A. Rohaim
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Emily Clayton
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Irem Sahin
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Julianne Vilela
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Manar E. Khalifa
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Mohammad Q. Al-Natour
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Mahmoud Bayoumi
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Aurore C. Poirier
- Department of Pathology and Infectious Diseases, School of Veterinary Medicine, University of Surrey, Guildford GU2 7AL, UK; (A.C.P.); (R.L.R.)
| | - Manoharanehru Branavan
- College of Engineering, Design and Physical Sciences, Brunel University London, Kingston Lane, Uxbridge UB8 3PH, UK; (M.B.); (W.B.)
| | - Mukunthan Tharmakulasingam
- Centre for Vision, Speech and Signal Processing, University of Surrey, Guildford GU2 7XH, UK; (M.T.); (N.S.C.); (A.F.)
| | - Nouman S. Chaudhry
- Centre for Vision, Speech and Signal Processing, University of Surrey, Guildford GU2 7XH, UK; (M.T.); (N.S.C.); (A.F.)
| | - Ravinder Sodi
- Department of Biochemistry, Poole & Bournemouth Hospitals NHS Trust, Longfleet Road, Poole BH15 2JB, UK;
| | - Amy Brown
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS, Foundation Trust, Kendal LA9 7RG, UK; (A.B.); (P.B.); (W.H.); (J.B.); (J.B.); (H.W.); (C.W.)
| | - Peter Burkhart
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS, Foundation Trust, Kendal LA9 7RG, UK; (A.B.); (P.B.); (W.H.); (J.B.); (J.B.); (H.W.); (C.W.)
| | - Wendy Hacking
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS, Foundation Trust, Kendal LA9 7RG, UK; (A.B.); (P.B.); (W.H.); (J.B.); (J.B.); (H.W.); (C.W.)
| | - Judy Botham
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS, Foundation Trust, Kendal LA9 7RG, UK; (A.B.); (P.B.); (W.H.); (J.B.); (J.B.); (H.W.); (C.W.)
| | - Joe Boyce
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS, Foundation Trust, Kendal LA9 7RG, UK; (A.B.); (P.B.); (W.H.); (J.B.); (J.B.); (H.W.); (C.W.)
| | - Hayley Wilkinson
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS, Foundation Trust, Kendal LA9 7RG, UK; (A.B.); (P.B.); (W.H.); (J.B.); (J.B.); (H.W.); (C.W.)
| | - Craig Williams
- The Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS, Foundation Trust, Kendal LA9 7RG, UK; (A.B.); (P.B.); (W.H.); (J.B.); (J.B.); (H.W.); (C.W.)
| | - Jayde Whittingham-Dowd
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Elisabeth Shaw
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Matt Hodges
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Lisa Butler
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Michelle D. Bates
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
| | - Roberto La Ragione
- Department of Pathology and Infectious Diseases, School of Veterinary Medicine, University of Surrey, Guildford GU2 7AL, UK; (A.C.P.); (R.L.R.)
| | - Wamadeva Balachandran
- College of Engineering, Design and Physical Sciences, Brunel University London, Kingston Lane, Uxbridge UB8 3PH, UK; (M.B.); (W.B.)
| | - Anil Fernando
- Centre for Vision, Speech and Signal Processing, University of Surrey, Guildford GU2 7XH, UK; (M.T.); (N.S.C.); (A.F.)
| | - Muhammad Munir
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, The Lancaster University, Lancaster LA1 4YW, UK; (M.A.R.); (E.C.); (I.S.); (J.V.); (M.E.K.); (M.Q.A.-N.); (M.B.); (J.W.-D.); (E.S.); (M.H.); (L.B.); (M.D.B.)
- Correspondence:
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7
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Robino E, Poirier AC, Amraoui H, Le Bissonnais S, Perret A, Lopez‐Joven C, Auguet J, Rubio TP, Cazevieille C, Rolland J, Héchard Y, Destoumieux‐Garzón D, Charrière GM. Resistance of the oyster pathogen
Vibrio tasmaniensis
LGP32 against grazing by
Vannella
sp. marine amoeba involves Vsm and CopA virulence factors. Environ Microbiol 2019; 22:4183-4197. [DOI: 10.1111/1462-2920.14770] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 08/04/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Etienne Robino
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
| | - Aurore C. Poirier
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
| | - Hajar Amraoui
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
| | - Sandra Le Bissonnais
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
| | - Angélique Perret
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
| | - Carmen Lopez‐Joven
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
| | | | - Tristan P. Rubio
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
| | | | - Jean‐Luc Rolland
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
| | - Yann Héchard
- EBI UMR CNRS 7267, University of Poitiers Poitiers France
| | - Delphine Destoumieux‐Garzón
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
| | - Guillaume M. Charrière
- IHPE UMR 5244, CNRS, Ifremer, University of Montpellier, University of Perpignan Via Domitia Montpellier France
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8
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Vanhove AS, Rubio TP, Nguyen AN, Lemire A, Roche D, Nicod J, Vergnes A, Poirier AC, Disconzi E, Bachère E, Le Roux F, Jacq A, Charrière GM, Destoumieux-Garzón D. Copper homeostasis at the host vibrio interface: lessons from intracellular vibrio transcriptomics. Environ Microbiol 2015; 18:875-88. [PMID: 26472275 DOI: 10.1111/1462-2920.13083] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 09/24/2015] [Accepted: 09/27/2015] [Indexed: 12/14/2022]
Abstract
Recent studies revealed that several vibrio species have evolved the capacity to survive inside host cells. However, it is still often ignored if intracellular stages are required for pathogenicity. Virulence of Vibrio tasmaniensis LGP32, a strain pathogenic for Crassostrea gigas oysters, depends on entry into hemocytes, the oyster immune cells. We investigated here the mechanisms of LGP32 intracellular survival and their consequences on the host-pathogen interaction. Entry and survival inside hemocytes were required for LGP32-driven cytolysis of hemocytes, both in vivo and in vitro. LGP32 intracellular stages showed a profound boost in metabolic activity and a major transcription of antioxidant and copper detoxification genes, as revealed by RNA sequencing. LGP32 isogenic mutants showed that resistance to oxidative stress and copper efflux are two main functions required for vibrio intracellular stages and cytotoxicity to hemocytes. Copper efflux was also essential for host colonization and virulence in vivo. Altogether, our results identify copper resistance as a major mechanism to resist killing by phagocytes, induce cytolysis of immune cells and colonize oysters. Selection of such resistance traits could arise from vibrio interactions with copper-rich environmental niches including marine invertebrates, which favour the emergence of pathogenic vibrios resistant to intraphagosomal killing across animal species.
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Affiliation(s)
- Audrey S Vanhove
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, Montpellier, 34095, France
| | - Tristan P Rubio
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, Montpellier, 34095, France
| | - An N Nguyen
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Orsay Cedex, 91405, France
| | - Astrid Lemire
- Unité Physiologie Fonctionnelle des Organismes Marins, Ifremer, ZI de la Pointe du Diable, CS 10070, Plouzané, 29280, France.,UPMC Paris 06, CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, Sorbonne Université, CS 90074, Roscoff cedex, 29688, France
| | - David Roche
- Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Direction des Sciences du Vivant (DSV), Institut de Génomique (IG), Génoscope, Evry cedex, 91057, France.,CNRS, UMR 8030, Laboratoire d'Analyse Bioinformatiques en Génomique et Métabolisme (LABGeM), Evry cedex, 91057, France
| | - Julie Nicod
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, Montpellier, 34095, France
| | - Agnès Vergnes
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, Montpellier, 34095, France
| | - Aurore C Poirier
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, Montpellier, 34095, France
| | - Elena Disconzi
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Orsay Cedex, 91405, France
| | - Evelyne Bachère
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, Montpellier, 34095, France
| | - Frédérique Le Roux
- Unité Physiologie Fonctionnelle des Organismes Marins, Ifremer, ZI de la Pointe du Diable, CS 10070, Plouzané, 29280, France.,UPMC Paris 06, CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, Sorbonne Université, CS 90074, Roscoff cedex, 29688, France
| | - Annick Jacq
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Orsay Cedex, 91405, France
| | - Guillaume M Charrière
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, Montpellier, 34095, France
| | - Delphine Destoumieux-Garzón
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, Montpellier, 34095, France
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9
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Vanhove AS, Rubio T, Nguyen AN, Lemire A, Roche D, Nicod J, Vergnes A, Poirier AC, Disconzi E, Bachère E, Le Roux F, Jacq A, Charrière GM, Destoumieux-Garzón D. Copper homeostasis at the host vibrio interface: lessons from intracellular vibrio transcriptomics. Environ Microbiol 2015. [DOI: 10.1111/1462-2920.13078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Audrey S. Vanhove
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, 34095 Montpellier; France
| | - Tristan Rubio
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, 34095 Montpellier; France
| | - An Ngoc Nguyen
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, 91405 Orsay Cedex; France
| | - Astrid Lemire
- Ifremer, Unité Physiologie Fonctionnelle des Organismes Marins, ZI de la Pointe du Diable, CS 10070, 29280 Plouzané; France
- Sorbonne Université, UPMC Paris 06, CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, 29688 Roscoff cedex; France
| | - David Roche
- Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Direction des Sciences du Vivant (DSV), Institut de Génomique (IG), Génoscope, 91057 Evry cedex; France
- CNRS, UMR 8030, Laboratoire d'Analyse Bioinformatiques en Génomique et Métabolisme (LABGeM), 91057 Evry cedex; France
| | - Julie Nicod
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, 34095 Montpellier; France
| | - Agnès Vergnes
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, 34095 Montpellier; France
| | - Aurore C. Poirier
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, 34095 Montpellier; France
| | - Elena Disconzi
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, 91405 Orsay Cedex; France
| | - Evelyne Bachère
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, 34095 Montpellier; France
| | - Frédérique Le Roux
- Ifremer, Unité Physiologie Fonctionnelle des Organismes Marins, ZI de la Pointe du Diable, CS 10070, 29280 Plouzané; France
- Sorbonne Université, UPMC Paris 06, CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, 29688 Roscoff cedex; France
| | - Annick Jacq
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, 91405 Orsay Cedex; France
| | - Guillaume M. Charrière
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, 34095 Montpellier; France
| | - Delphine Destoumieux-Garzón
- Interactions Hôtes-Pathogènes-Environnements (IHPE), UMR 5244, CNRS, Ifremer, Université de Perpignan Via Domitia, Université de Montpellier, 34095 Montpellier; France
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10
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Bachère E, Rosa RD, Schmitt P, Poirier AC, Merou N, Charrière GM, Destoumieux-Garzón D. The new insights into the oyster antimicrobial defense: Cellular, molecular and genetic view. Fish Shellfish Immunol 2015; 46:50-64. [PMID: 25753917 DOI: 10.1016/j.fsi.2015.02.040] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 02/24/2015] [Accepted: 02/26/2015] [Indexed: 06/04/2023]
Abstract
Oysters are sessile filter feeders that live in close association with abundant and diverse communities of microorganisms that form the oyster microbiota. In such an association, cellular and molecular mechanisms have evolved to maintain oyster homeostasis upon stressful conditions including infection and changing environments. We give here cellular and molecular insights into the Crassostrea gigas antimicrobial defense system with focus on antimicrobial peptides and proteins (AMPs). This review highlights the central role of the hemocytes in the modulation and control of oyster antimicrobial response. As vehicles for AMPs and other antimicrobial effectors, including reactive oxygen species (ROS), and together with epithelia, hemocytes provide the oyster with local defense reactions instead of systemic humoral ones. These reactions are largely based on phagocytosis but also, as recently described, on the extracellular release of antimicrobial histones (ETosis) which is triggered by ROS. Thus, ROS can signal danger and activate cellular responses in the oyster. From the current literature, AMP production/release could serve similar functions. We provide also new lights on the oyster genetic background that underlies a great diversity of AMP sequences but also an extraordinary individual polymorphism of AMP gene expression. We discuss here how this polymorphism could generate new immune functions, new pathogen resistances or support individual adaptation to environmental stresses.
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Affiliation(s)
- Evelyne Bachère
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095 Montpellier, France.
| | - Rafael Diego Rosa
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095 Montpellier, France; Laboratory of Immunology Applied to Aquaculture, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Paulina Schmitt
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095 Montpellier, France; Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad, Católica de Valparaíso, Avenida Universidad 330, 2373223 Valparaíso, Chile
| | - Aurore C Poirier
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095 Montpellier, France
| | - Nicolas Merou
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095 Montpellier, France
| | - Guillaume M Charrière
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095 Montpellier, France
| | - Delphine Destoumieux-Garzón
- Ifremer, UMR 5244, IHPE Interaction Host Pathogen Environment, UPVD, CNRS, Université de Montpellier, CC 80, F-34095 Montpellier, France
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11
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Poirier AC, Schmitt P, Rosa RD, Vanhove AS, Kieffer-Jaquinod S, Rubio TP, Charrière GM, Destoumieux-Garzón D. Antimicrobial histones and DNA traps in invertebrate immunity: evidences in Crassostrea gigas. J Biol Chem 2014; 289:24821-31. [PMID: 25037219 DOI: 10.1074/jbc.m114.576546] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Although antimicrobial histones have been isolated from multiple metazoan species, their role in host defense has long remained unanswered. We found here that the hemocytes of the oyster Crassostrea gigas release antimicrobial H1-like and H5-like histones in response to tissue damage and infection. These antimicrobial histones were shown to be associated with extracellular DNA networks released by hemocytes, the circulating immune cells of invertebrates, in response to immune challenge. The hemocyte-released DNA was found to surround and entangle vibrios. This defense mechanism is reminiscent of the neutrophil extracellular traps (ETs) recently described in vertebrates. Importantly, oyster ETs were evidenced in vivo in hemocyte-infiltrated interstitial tissues surrounding wounds, whereas they were absent from tissues of unchallenged oysters. Consistently, antimicrobial histones were found to accumulate in oyster tissues following injury or infection with vibrios. Finally, oyster ET formation was highly dependent on the production of reactive oxygen species by hemocytes. This shows that ET formation relies on common cellular and molecular mechanisms from vertebrates to invertebrates. Altogether, our data reveal that ET formation is a defense mechanism triggered by infection and tissue damage, which is shared by relatively distant species suggesting either evolutionary conservation or convergent evolution within Bilateria.
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Affiliation(s)
- Aurore C Poirier
- From Laboratory of Ecology of Coastal Marine Systems, CNRS UMR 5119, University of Montpellier 2, Ifremer, University of Montpellier 1, and IRD, Place Eugène Bataillon, F-34095 Montpellier, France
| | - Paulina Schmitt
- From Laboratory of Ecology of Coastal Marine Systems, CNRS UMR 5119, University of Montpellier 2, Ifremer, University of Montpellier 1, and IRD, Place Eugène Bataillon, F-34095 Montpellier, France, the Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Avenida Universidad 330, 2373223 Valparaíso, Chile, and
| | - Rafael D Rosa
- From Laboratory of Ecology of Coastal Marine Systems, CNRS UMR 5119, University of Montpellier 2, Ifremer, University of Montpellier 1, and IRD, Place Eugène Bataillon, F-34095 Montpellier, France
| | - Audrey S Vanhove
- From Laboratory of Ecology of Coastal Marine Systems, CNRS UMR 5119, University of Montpellier 2, Ifremer, University of Montpellier 1, and IRD, Place Eugène Bataillon, F-34095 Montpellier, France
| | - Sylvie Kieffer-Jaquinod
- INSERM, Commissariat à l'Energie Atomique (CEA), Université Joseph Fourier, U1038, Etude de la Dynamique des Protéomes, Laboratoire Biologie à Grande Echelle, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France
| | - Tristan P Rubio
- From Laboratory of Ecology of Coastal Marine Systems, CNRS UMR 5119, University of Montpellier 2, Ifremer, University of Montpellier 1, and IRD, Place Eugène Bataillon, F-34095 Montpellier, France
| | - Guillaume M Charrière
- From Laboratory of Ecology of Coastal Marine Systems, CNRS UMR 5119, University of Montpellier 2, Ifremer, University of Montpellier 1, and IRD, Place Eugène Bataillon, F-34095 Montpellier, France,
| | - Delphine Destoumieux-Garzón
- From Laboratory of Ecology of Coastal Marine Systems, CNRS UMR 5119, University of Montpellier 2, Ifremer, University of Montpellier 1, and IRD, Place Eugène Bataillon, F-34095 Montpellier, France
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