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Pinchon E, Henry S, Leon F, Fournier-Wirth C, Foulongne V, Cantaloube JF. Rapid Detection of Measles Virus Using Reverse Transcriptase/Recombinase Polymerase Amplification Coupled with CRISPR/Cas12a and a Lateral Flow Detection: A Proof-of-Concept Study. Diagnostics (Basel) 2024; 14:517. [PMID: 38472989 DOI: 10.3390/diagnostics14050517] [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: 01/05/2024] [Revised: 02/18/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
The measles virus is highly contagious, and efforts to simplify its diagnosis are essential. A reverse transcriptase/recombinase polymerase amplification assay coupled with CRISPR/Cas12a and an immunochromatographic lateral flow detection (RT-RPA-CRISPR-LFD) was developed for the simple visual detection of measles virus. The assay was performed in less than 1 h at an optimal temperature of 42 °C. The detection limit of the assay was 31 copies of an RNA standard in the reaction tube. The diagnostic performances were evaluated on a panel of 27 measles virus RT-PCR-positive samples alongside 29 measles virus negative saliva samples. The sensitivity and specificity were 96% (95% CI, 81-99%) and 100% (95% CI, 88-100%), respectively, corresponding to an accuracy of 98% (95% CI, 94-100%; p < 0.0001). This method will open new perspectives in the development of the point-of-care testing diagnosis of measles.
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Affiliation(s)
- Elena Pinchon
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Etablissement Français du Sang, Université de Montpellier, Inserm, 34184 Montpellier, France
| | - Steven Henry
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Etablissement Français du Sang, Université de Montpellier, Inserm, 34184 Montpellier, France
| | - Fanny Leon
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Etablissement Français du Sang, Université de Montpellier, Inserm, 34184 Montpellier, France
| | - Chantal Fournier-Wirth
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Etablissement Français du Sang, Université de Montpellier, Inserm, 34184 Montpellier, France
| | - Vincent Foulongne
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Etablissement Français du Sang, Université de Montpellier, Inserm, 34184 Montpellier, France
| | - Jean-François Cantaloube
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Etablissement Français du Sang, Université de Montpellier, Inserm, 34184 Montpellier, France
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Gomez-Martinez J, Henry S, Tuaillon E, Van de Perre P, Fournier-Wirth C, Foulongne V, Brès JC. Novel Lateral Flow-Based Assay for Simple and Visual Detection of SARS-CoV-2 Mutations. Front Cell Infect Microbiol 2022; 12:902914. [PMID: 35909973 PMCID: PMC9329616 DOI: 10.3389/fcimb.2022.902914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/24/2022] [Indexed: 11/13/2022] Open
Abstract
Identification of the main SARS-CoV-2 variants in real time is of interest to control the virus and to rapidly devise appropriate public health responses. The RT-qPCR is currently considered to be the reference method to screen SARS-CoV-2 mutations, but it has some limitations. The multiplexing capability is limited when the number of markers to detect increases. Moreover, the performance of this allele-specific method may be impacted in the presence of new mutations. Herein, we present a proof-of-concept study of a simple molecular assay to detect key SARS-CoV-2 mutations. The innovative features of the assay are the multiplex asymmetric one-step RT-PCR amplification covering different regions of SARS-CoV-2 S gene and the visual detection of mutations on a lateral flow DNA microarray. Three kits (Kit 1: N501Y, E484K; Kit 2: L452R, E484K/Q; Kit 3: K417N, L452R, E484K/Q/A) were developed to match recommendations for surveillance of SARS-CoV-2 variants between January and December 2021. The clinical performance was assessed using RNA extracts from 113 SARS-CoV-2-positive samples with cycle thresholds <30, and results demonstrated that our assay allows specific and sensitive detection of mutations, with a performance comparable to that of RT-qPCR. The VAR-CoV assay detected four SARS-CoV-2 targets and achieved specific and sensitive screening of spike mutations associated with the main variants of concern, with a performance comparable to that of RT-qPCR. With well-defined virus sequences, this assay can be rapidly adapted to other emerging mutations; it is a promising tool for variant surveillance.
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Affiliation(s)
- Julien Gomez-Martinez
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, Etablissement français du sang, INSERM, University of Antilles, Montpellier, France
| | - Steven Henry
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, Etablissement français du sang, INSERM, University of Antilles, Montpellier, France
- Laboratoire de Virologie, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Edouard Tuaillon
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, Etablissement français du sang, INSERM, University of Antilles, Montpellier, France
- Laboratoire de Virologie, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, Etablissement français du sang, INSERM, University of Antilles, Montpellier, France
- Laboratoire de Virologie, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Chantal Fournier-Wirth
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, Etablissement français du sang, INSERM, University of Antilles, Montpellier, France
| | - Vincent Foulongne
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, Etablissement français du sang, INSERM, University of Antilles, Montpellier, France
- Laboratoire de Virologie, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Jean-Charles Brès
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, Etablissement français du sang, INSERM, University of Antilles, Montpellier, France
- *Correspondence: Jean-Charles Brès,
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Mayran C, Foulongne V, Van de Perre P, Fournier-Wirth C, Molès JP, Cantaloube JF. Rapid Diagnostic Test for Hepatitis B Virus Viral Load Based on Recombinase Polymerase Amplification Combined with a Lateral Flow Read-Out. Diagnostics (Basel) 2022; 12:diagnostics12030621. [PMID: 35328174 PMCID: PMC8946908 DOI: 10.3390/diagnostics12030621] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/25/2022] [Accepted: 02/28/2022] [Indexed: 01/27/2023] Open
Abstract
Hepatitis B (HBV) infection is a major public health concern. Perinatal transmission of HBV from mother to child represents the main mode of transmission. Despite the existence of effective immunoprophylaxis, the preventive strategy is inefficient in neonates born to mothers with HBV viral loads above 2 × 105 IU/mL. To prevent mother-to-child transmission, it is important to identify highly viremic pregnant women and initiate antiviral therapy to decrease their viral load. We developed a simple innovative molecular approach avoiding the use of automatic devices to screen highly viremic pregnant women. This method includes rapid DNA extraction coupled with an isothermal recombinase polymerase amplification (RPA) combined with direct visual detection on a lateral flow assay (LFA). We applied our RPA-LFA approach to HBV DNA-positive plasma samples with various loads and genotypes. We designed a triage test by adapting the analytical sensitivity to the recommended therapeutic decision threshold of 2 × 105 IU/mL. The sensitivity and specificity were 98.6% (95% CI: 92.7−99.9%) and 88.2% (95% CI: 73.4−95.3%), respectively. This assay performed excellently, with an area under the ROC curve value of 0.99 (95% CI: 0.99−1.00, p < 0.001). This simple method will open new perspectives in the development of point-of-care testing to prevent HBV perinatal transmission.
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Leon F, Pinchon E, Mayran C, Daynès A, Morvan F, Molès JP, Cantaloube JF, Fournier-Wirth C. Magnetic Field-Enhanced Agglutination Readout Combined With Isothermal Reverse Transcription Recombinase Polymerase Amplification for Rapid and Sensitive Molecular Detection of Dengue Virus. Front Chem 2022; 9:817246. [PMID: 35141206 PMCID: PMC8819590 DOI: 10.3389/fchem.2021.817246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/24/2021] [Indexed: 11/13/2022] Open
Abstract
Among the numerous molecular diagnostic methods, isothermal reverse transcription recombinase polymerase amplification (RT-RPA) is a simple method that has high sensitivity and avoids the use of expensive instruments. However, detection of amplified genomes often requires a fluorescence readout on costly readers or migration on a lateral flow strip with a subjective visual reading. Aiming to establish a new approach to rapidly and sensitively detect viruses, we combined RT-RPA with a magnetic field-enhanced agglutination (MFEA) assay and assessed the ability of this method to detect the dengue virus (DENV). Magnetization cycles accelerated the capture of amplified DENV genomes between functionalized magnetic nanoparticles by a fast chaining process to less than 5 min; the agglutination was quantified by simple turbidimetry. A total of 37 DENV RNA+ and 30 DENV RNA− samples were evaluated with this combined method. The sensitivity and specificity were 89.19% (95% CI, 72.75–100.00%) and 100% (95% CI, 81.74–100.00%), respectively. This approach provides a solution for developing innovative diagnostic assays for the molecular detection of emerging infections.
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Affiliation(s)
- Fanny Leon
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, Montpellier, France
| | - Elena Pinchon
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, Montpellier, France
| | - Charly Mayran
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, Montpellier, France
| | | | - François Morvan
- Institut des Biomolecules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Jean-Pierre Molès
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, Montpellier, France
| | - Jean-François Cantaloube
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, Montpellier, France
| | - Chantal Fournier-Wirth
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, Montpellier, France
- *Correspondence: Chantal Fournier-Wirth,
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Almela F, Lionnet F, Caparros R, Fournier-Wirth C, Laperche S, Bougard D. Risque de transmission du vMCJ chez des patients polytransfusés. Transfus Clin Biol 2021. [DOI: 10.1016/j.tracli.2021.08.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Gomez-Martinez J, Foulongne V, Laureillard D, Nagot N, Montès B, Cantaloube JF, Van De Perre P, Fournier-Wirth C, Molès JP, Brès JC. Détection de mutations de résistance du VIH aux antirétroviraux : vers un dépistage rapide pré-thérapeutique ? Transfus Clin Biol 2021. [DOI: 10.1016/j.tracli.2021.08.312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Temurok N, Leon F, Pinchon E, Clot M, Foulongne V, Cantaloube JF, Vande Perre P, Fournier-Wirth C, Molès JP, Daynès A. Magnetic field-enhanced agglutination as a readout for rapid serologic assays with human plasma. Talanta 2021; 233:122407. [PMID: 34215097 DOI: 10.1016/j.talanta.2021.122407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 12/08/2020] [Revised: 03/30/2021] [Accepted: 04/07/2021] [Indexed: 12/11/2022]
Abstract
Recent virus outbreaks have revealed a critical need for large scale serological assays. However, many available tests either require a cumbersome, costly apparatus or lack the availability of full automation. In order to address these limitations, we describe a homogeneous assay for antibody detection via measurement of superparamagnetic particles agglutination. Application of a magnetic field permits to overcome the limitations governed by Brownian translational diffusion in conventional assays and results in an important acceleration of the aggregation process as well as an improvement of the limit of detection. Furthermore, the use of protein-concentrated fluid such as 5 times-diluted human plasma does not impair the performances of the method. Screening of human plasma samples shows a strict discrimination between seropositive and seronegative samples in an assay duration as short as 14 s. The sensitivity of this method, combined with its quickness and simplicity, makes it a promising diagnostic tool.
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Affiliation(s)
- Nevzat Temurok
- HORIBA ABX SAS, Parc Euromédecine, Rue du Caducée BP 7290, 34184, Montpellier, CEDEX 4, France
| | - Fanny Leon
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Elena Pinchon
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Martine Clot
- HORIBA ABX SAS, Parc Euromédecine, Rue du Caducée BP 7290, 34184, Montpellier, CEDEX 4, France
| | - Vincent Foulongne
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Jean-François Cantaloube
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Philippe Vande Perre
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Chantal Fournier-Wirth
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Jean-Pierre Molès
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Aurélien Daynès
- HORIBA ABX SAS, Parc Euromédecine, Rue du Caducée BP 7290, 34184, Montpellier, CEDEX 4, France.
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Gomez-Martinez J, Foulongne V, Laureillard D, Nagot N, Montès B, Cantaloube JF, Van de Perre P, Fournier-Wirth C, Molès JP, Brès JC. Near-point-of-care assay with a visual readout for detection of HIV-1 drug resistance mutations: A proof-of-concept study. Talanta 2021; 231:122378. [PMID: 33965042 DOI: 10.1016/j.talanta.2021.122378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 01/08/2021] [Revised: 03/23/2021] [Accepted: 03/27/2021] [Indexed: 11/25/2022]
Abstract
Human immunodeficiency virus (HIV) infection is a chronic disease that can be treated with antiretroviral (ARV) therapy. However, the success of this treatment has been jeopardized by the emergence of HIV infections resistant to ARV drugs. In low-to middle-income countries (LMICs), where transmission of resistant viruses has increased over the past decade, there is an urgent need to improve access to HIV drug resistance testing. Here, we present a proof-of-concept study of a rapid and simple molecular method to detect two major mutations (K103 N, Y181C) conferring resistance to first-line nonnucleoside reverse transcriptase inhibitor regimens. Our near-point-of-care (near-POC) diagnostic test, combining a sequence-specific primer extension and a lateral flow DNA microarray strip, allows visual detection of HIV drug resistance mutations (DRM) in a short turnaround time (4 h 30). The assay has a limit of detection of 100 copies of plasmid DNA and has a higher sensitivity than standard Sanger sequencing. The analytical performance was assessed by use of 16 plasma samples from individuals living with HIV-1 and results demonstrated the specificity and the sensitivity of this approach for multiplex detection of the two DRMs in a single test. Furthermore, this near-POC assay could be easily taylored to detect either new DRMs or DRM of from various HIV clades and might be useful for pre-therapy screening in LMICs with high levels of transmitted drug resistance.
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Affiliation(s)
- Julien Gomez-Martinez
- Pathogenesis and Control of Chronic and Emerging Infections, EFS, Inserm, University of Montpellier, F-34394, Montpellier, France
| | - Vincent Foulongne
- Pathogenesis and Control of Chronic and Emerging Infections, EFS, Inserm, University of Montpellier, F-34394, Montpellier, France; Laboratoire de Virologie, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Didier Laureillard
- Pathogenesis and Control of Chronic and Emerging Infections, EFS, Inserm, University of Montpellier, F-34394, Montpellier, France; Department of Infectious and Tropical Diseases, Centre Hospitalier Universitaire Carémeau, Nîmes, France
| | - Nicolas Nagot
- Pathogenesis and Control of Chronic and Emerging Infections, EFS, Inserm, University of Montpellier, F-34394, Montpellier, France
| | - Brigitte Montès
- Laboratoire de Virologie, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Jean-François Cantaloube
- Pathogenesis and Control of Chronic and Emerging Infections, EFS, Inserm, University of Montpellier, F-34394, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic and Emerging Infections, EFS, Inserm, University of Montpellier, F-34394, Montpellier, France
| | - Chantal Fournier-Wirth
- Pathogenesis and Control of Chronic and Emerging Infections, EFS, Inserm, University of Montpellier, F-34394, Montpellier, France
| | - Jean-Pierre Molès
- Pathogenesis and Control of Chronic and Emerging Infections, EFS, Inserm, University of Montpellier, F-34394, Montpellier, France
| | - Jean-Charles Brès
- Pathogenesis and Control of Chronic and Emerging Infections, EFS, Inserm, University of Montpellier, F-34394, Montpellier, France.
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Leon F, Pinchon E, Temurok N, Morvan F, Vasseur JJ, Clot M, Foulongne V, Cantaloube JF, Vande Perre P, Molès JP, Daynès A, Fournier-Wirth C. Diagnostic Performance of a Magnetic Field-Enhanced Agglutination Readout in Detecting Either Viral Genomes or Host Antibodies in Arbovirus Infection. Microorganisms 2021; 9:microorganisms9040674. [PMID: 33805173 PMCID: PMC8064388 DOI: 10.3390/microorganisms9040674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 12/27/2022] Open
Abstract
Arbovirus diagnostics on blood from donors and travelers returning from endemic areas is increasingly important for better patient management and epidemiological surveillance. We developed a flexible approach based on a magnetic field-enhanced agglutination (MFEA) readout to detect either genomes or host-derived antibodies. Dengue viruses (DENVs) were selected as models. For genome detection, a pan-flavivirus amplification was performed before capture of biotinylated amplicons between magnetic nanoparticles (MNPs) grafted with DENV probes and anti-biotin antibodies. Magnetization cycles accelerated this chaining process to within 5 min while simple turbidimetry measured the signal. This molecular MFEA readout was evaluated on 43 DENV RNA(+) and 32 DENV RNA(−) samples previously screened by real-time RT-PCR. The sensitivity and the specificity were 88.37% (95% CI, 78.76%–97.95%) and 96.87% (95% CI, 90.84%–100%), respectively. For anti-DENV antibody detection, 103 plasma samples from donors were first screened using ELISA assays. An immunological MFEA readout was then performed by adding MNPs grafted with viral antigens to the samples. Anti-DENV antibodies were detected with a sensitivity and specificity of 90.62% (95% CI, 83.50%–97.76%) and 97.44% (95% CI, 92.48%–100%), respectively. This adaptable approach offers flexibility to platforms dedicated to the screening of emerging infections.
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Affiliation(s)
- Fanny Leon
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Elena Pinchon
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Nevzat Temurok
- HORIBA Medical, 34184 Montpellier, France; (N.T.); (M.C.); (A.D.)
| | - François Morvan
- Institut des Biomolecules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (F.M.); (J.-J.V.)
| | - Jean-Jacques Vasseur
- Institut des Biomolecules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (F.M.); (J.-J.V.)
| | - Martine Clot
- HORIBA Medical, 34184 Montpellier, France; (N.T.); (M.C.); (A.D.)
| | - Vincent Foulongne
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Jean-François Cantaloube
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Philippe Vande Perre
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Jean-Pierre Molès
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Aurélien Daynès
- HORIBA Medical, 34184 Montpellier, France; (N.T.); (M.C.); (A.D.)
| | - Chantal Fournier-Wirth
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
- Correspondence: ; Tel.: +33-467616457
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Bélondrade M, Nicot S, Mayran C, Bruyere-Ostells L, Almela F, Di Bari MA, Levavasseur E, Watts JC, Fournier-Wirth C, Lehmann S, Haïk S, Nonno R, Bougard D. Sensitive protein misfolding cyclic amplification of sporadic Creutzfeldt-Jakob disease prions is strongly seed and substrate dependent. Sci Rep 2021; 11:4058. [PMID: 33603091 PMCID: PMC7893054 DOI: 10.1038/s41598-021-83630-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/05/2021] [Indexed: 12/11/2022] Open
Abstract
Unlike variant Creutzfeldt–Jakob disease prions, sporadic Creutzfeldt–Jakob disease prions have been shown to be difficult to amplify in vitro by protein misfolding cyclic amplification (PMCA). We assessed PMCA of pathological prion protein (PrPTSE) from 14 human sCJD brain samples in 3 substrates: 2 from transgenic mice expressing human prion protein (PrP) with either methionine (M) or valine (V) at position 129, and 1 from bank voles. Brain extracts representing the 5 major clinicopathological sCJD subtypes (MM1/MV1, MM2, MV2, VV1, and VV2) all triggered seeded PrPTSE amplification during serial PMCA with strong seed- and substrate-dependence. Remarkably, bank vole PrP substrate allowed the propagation of all sCJD subtypes with preservation of the initial molecular PrPTSE type. In contrast, PMCA in human PrP substrates was accompanied by a PrPTSE molecular shift during heterologous (M/V129) PMCA reactions, with increased permissiveness of V129 PrP substrate to in vitro sCJD prion amplification compared to M129 PrP substrate. Combining PMCA amplification sensitivities with PrPTSE electrophoretic profiles obtained in the different substrates confirmed the classification of 4 distinct major sCJD prion strains (M1, M2, V1, and V2). Finally, the level of sensitivity required to detect VV2 sCJD prions in cerebrospinal fluid was achieved.
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Affiliation(s)
- Maxime Bélondrade
- Pathogenesis and Control of Chronic Infections, Etablissement Français du Sang, Inserm, Université de Montpellier, Montpellier, France
| | - Simon Nicot
- Pathogenesis and Control of Chronic Infections, Etablissement Français du Sang, Inserm, Université de Montpellier, Montpellier, France
| | - Charly Mayran
- Pathogenesis and Control of Chronic Infections, Etablissement Français du Sang, Inserm, Université de Montpellier, Montpellier, France
| | - Lilian Bruyere-Ostells
- Pathogenesis and Control of Chronic Infections, Etablissement Français du Sang, Inserm, Université de Montpellier, Montpellier, France
| | - Florian Almela
- Pathogenesis and Control of Chronic Infections, Etablissement Français du Sang, Inserm, Université de Montpellier, Montpellier, France
| | - Michele A Di Bari
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanita, Rome, Italy
| | - Etienne Levavasseur
- Inserm U 1127, CNRS UMR 7225, UPMC Université Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, Sorbonne Universités, Paris, France
| | - Joel C Watts
- Tanz Centre for Research in Neurodegenerative Diseases and Department of Biochemistry, University of Toronto, Toronto, Canada
| | - Chantal Fournier-Wirth
- Pathogenesis and Control of Chronic Infections, Etablissement Français du Sang, Inserm, Université de Montpellier, Montpellier, France
| | - Sylvain Lehmann
- IRMB, INM, INSERM, CHU Montpellier, (LBPC-PPC), Univ Montpellier, Montpellier, France
| | - Stéphane Haïk
- Inserm U 1127, CNRS UMR 7225, UPMC Université Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, Sorbonne Universités, Paris, France
| | - Romolo Nonno
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanita, Rome, Italy
| | - Daisy Bougard
- Pathogenesis and Control of Chronic Infections, Etablissement Français du Sang, Inserm, Université de Montpellier, Montpellier, France.
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11
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Pinchon E, Leon F, Temurok N, Morvan F, Vasseur JJ, Clot M, Foulongne V, Cantaloube JF, Perre PV, Daynès A, Molès JP, Fournier-Wirth C. Rapid and specific DNA detection by magnetic field-enhanced agglutination assay. Talanta 2020; 219:121344. [PMID: 32887073 DOI: 10.1016/j.talanta.2020.121344] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 12/13/2022]
Abstract
The detection of DNA molecules by agglutination assays has suffered from a lack of specificity. The specificity can be improved by introducing a hybridization step with a specific probe. We developed a setting that captured biotinylated DNA targets between magnetic nanoparticles (MNPs) grafted with tetrathiolated probes and anti-biotin antibodies. The agglutination assay was enhanced using a series of magnetization cycles. This setting allowed to successfully detect a synthetic single stranded DNA with a sensitivity as low as 9 pM. We next adapted this setting to the detection of PCR products. We first developed an asymmetric pan-flavivirus amplification. Then, we demonstrated its ability to detect dengue virus with a limit of detection of 100 TCID50/mL. This magnetic field-enhanced agglutination assay is an endpoint readout, which benefits from the advantages of using nanoparticles that result in particular from a very reduced duration of the test; in our case it lasts less than 5 min. This approach provides a solution to develop new generation platforms for molecular diagnostics.
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Affiliation(s)
- Elena Pinchon
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Fanny Leon
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Nevzat Temurok
- HORIBA Medical ABX SAS, Parc Euromedecine, Rue Du Caducée BP 7290, 34184, Montpellier, France.
| | - François Morvan
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095, Montpellier, Cedex 5, France.
| | - Jean-Jacques Vasseur
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095, Montpellier, Cedex 5, France.
| | - Martine Clot
- HORIBA Medical ABX SAS, Parc Euromedecine, Rue Du Caducée BP 7290, 34184, Montpellier, France.
| | - Vincent Foulongne
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Jean-François Cantaloube
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Philippe Vande Perre
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Aurélien Daynès
- HORIBA Medical ABX SAS, Parc Euromedecine, Rue Du Caducée BP 7290, 34184, Montpellier, France.
| | - Jean-Pierre Molès
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Chantal Fournier-Wirth
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
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12
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Bélondrade M, Mayran C, Bruyère-Ostells L, Lehmann S, Green A, Will R, Fournier-Wirth C, Bougard D. Diagnostic pré-mortem du variant de la maladie de Creutzfeldt-Jakob. Transfus Clin Biol 2019. [DOI: 10.1016/j.tracli.2019.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Macarry E, Mayran C, Soufflet L, Dupont M, Ovlaque G, Bétremieux C, Fournier-Wirth C, Bougard D. Détection du vMCJ dans le sang : vers l’automatisation. Transfus Clin Biol 2019. [DOI: 10.1016/j.tracli.2019.06.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Pinchon E, Leon F, Temurok N, Cantaloube JF, Gallian P, Foulongne V, Clos M, Van De Perre P, Moles JP, Daynes A, Fournier-Wirth C. Nouveau dépistage combiné moléculaire et immunologique des infections arbovirales. Transfus Clin Biol 2019. [DOI: 10.1016/j.tracli.2019.06.277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Gomez-Martinez J, Silvy M, Chiaroni J, Fournier-Wirth C, Roubinet F, Bailly P, Brès JC. Test visuel rapide de génotypage érythrocytaire. Transfus Clin Biol 2019. [DOI: 10.1016/j.tracli.2019.06.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Bougard D, Bélondrade M, Mayran C, Bruyère-Ostells L, Lehmann S, Fournier-Wirth C, Knight RS, Will RG, Green AJE. Diagnosis of Methionine/Valine Variant Creutzfeldt-Jakob Disease by Protein Misfolding Cyclic Amplification. Emerg Infect Dis 2019; 24:1364-1366. [PMID: 29912702 PMCID: PMC6038758 DOI: 10.3201/eid2407.172105] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A patient with a heterozygous variant of Creutzfeldt-Jakob disease (CJD) with a methionine/valine genotype at codon 129 of the prion protein gene was recently reported. Using an ultrasensitive and specific protein misfolding cyclic amplification–based assay for detecting variant CJD prions in cerebrospinal fluid, we discriminated this heterozygous case of variant CJD from cases of sporadic CJD.
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17
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Vossier L, Valera L, Leon F, Roche S, Piquer D, Rubrecht L, Favier C, Cremer GA, Pouzet A, Dagland T, Rihet S, Galea P, Farre C, Bonnet R, Jaffrézic-Renault N, Chaix C, Fareh J, Fournier-Wirth C. Combining culture and microbead-based immunoassay for the early and generic detection of bacteria in platelet concentrates. Transfusion 2018; 59:277-286. [PMID: 30430585 DOI: 10.1111/trf.15019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 07/16/2018] [Accepted: 07/22/2018] [Indexed: 01/15/2023]
Abstract
BACKGROUND Despite current preventive strategies, bacterial contamination of platelets is the highest residual infectious risk in transfusion. Bacteria can grow from an initial concentration of 0.03-0.3 colony-forming units (CFUs)/mL up to 108 to 109 CFUs/mL over the product shelf life. The aim of this study was to develop a cost-effective approach for an early, rapid, sensitive, and generic detection of bacteria in platelet concentrates. STUDY DESIGN AND METHODS A large panel of bacteria involved in transfusion reactions, including clinical isolates and reference strains, was established. Sampling was performed 24 hours after platelet spiking. After an optimized culture step for increasing bacterial growth, a microbead-based immunoassay allowed the generic detection of bacteria. Antibody production and immunoassay development took place exclusively with bacteria spiked in fresh platelet concentrates to improve the specificity of the test. RESULTS Antibodies for the generic detection of either gram-negative or gram-positive bacteria were selected for the microbead-based immunoassay. Our approach, combining the improved culture step with the immunoassay, allowed sensitive detection of 1 to 10 CFUs/mL for gram-negative and 1 to 102 CFUs/mL for gram-positive species. CONCLUSION In this study, a new approach combining bacterial culture with immunoassay was developed for the generic and sensitive detection of bacteria in platelet concentrates. This efficient and easily automatable approach allows tested platelets to be used on Day 2 after collection and could represent an alternative strategy for reducing the risk of transfusion-transmitted bacterial infections. This strategy could be adapted for the detection of bacteria in other cellular products.
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Affiliation(s)
- Ludivine Vossier
- Pathogenesis and Control of Chronic Infections, EFS, Inserm, Université de Montpellier, Montpellier, France
| | - Lionel Valera
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | - Fanny Leon
- Pathogenesis and Control of Chronic Infections, EFS, Inserm, Université de Montpellier, Montpellier, France
| | - Stéphanie Roche
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | - Dominique Piquer
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | - Laetitia Rubrecht
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | - Christine Favier
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | | | - Agnès Pouzet
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | - Typhaine Dagland
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | - Stéphane Rihet
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | - Pascale Galea
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | - Carole Farre
- Institut des Sciences Analytiques, (CNRS-Université de Lyon 1-ENS), Lyon, France
| | - Romaric Bonnet
- Institut des Sciences Analytiques, (CNRS-Université de Lyon 1-ENS), Lyon, France
| | | | - Carole Chaix
- Institut des Sciences Analytiques, (CNRS-Université de Lyon 1-ENS), Lyon, France
| | - Jeannette Fareh
- Bio-Rad, R&D Marnes la Coquette, Steenvoorde and, Montpellier, France
| | - Chantal Fournier-Wirth
- Pathogenesis and Control of Chronic Infections, EFS, Inserm, Université de Montpellier, Montpellier, France
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18
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Gomez-Martinez J, Silvy M, Chiaroni J, Fournier-Wirth C, Roubinet F, Bailly P, Brès JC. Multiplex Lateral Flow Assay for Rapid Visual Blood Group Genotyping. Anal Chem 2018; 90:7502-7509. [PMID: 29842785 DOI: 10.1021/acs.analchem.8b01078] [Citation(s) in RCA: 20] [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] [Indexed: 11/29/2022]
Abstract
Conventional blood group phenotyping by hemagglutination assays, carried out pretransfusion, is unsuitable in certain clinical situations. Molecular typing offers an alternative method, allowing the deduction of blood group phenotype from genotype. However, current methods require a long turnaround time and are not performed on-site, limiting their application in emergency situations. Here, we report the development of a novel, rapid multiplex molecular method to identify seven alleles in three clinically relevant blood group systems (Kidd, Duffy, and MNS). Our test, using a dry-reagent allele-specific lateral flow biosensor, does not require DNA extraction and allows easy visual determination of blood group genotype. Multiplex linear-after-the-exponential (LATE)-PCR and lateral flow parameters were optimized with a total processing time of 1 h from receiving the blood sample. Our assay had a 100% concordance rate between the deduced and the standard serological phenotype in a sample from 108 blood donors, showing the accuracy of the test. Owing to its simple handling, the assay can be operated by nonskilled health-care professionals. The proposed assay offers the potential for the development of other relevant single nucleotide polymorphism (SNP) panels for immunohematology and new applications, such as for infectious diseases, in the near future.
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Affiliation(s)
- Julien Gomez-Martinez
- Etablissement Français du Sang Occitanie , F-34184 Montpellier , France.,Pathogenesis and Control of Chronic Infections , University of Montpellier, INSERM, EFS , F-34184 Montpellier , France
| | - Monique Silvy
- Etablissement Français du Sang PACA Corse , Biologie des Groupes Sanguins , F-13385 Marseille , France.,University of Aix Marseille, CNRS, EFS, ADES , F-13385 Marseille , France
| | - Jacques Chiaroni
- Etablissement Français du Sang PACA Corse , Biologie des Groupes Sanguins , F-13385 Marseille , France.,University of Aix Marseille, CNRS, EFS, ADES , F-13385 Marseille , France
| | - Chantal Fournier-Wirth
- Etablissement Français du Sang Occitanie , F-34184 Montpellier , France.,Pathogenesis and Control of Chronic Infections , University of Montpellier, INSERM, EFS , F-34184 Montpellier , France
| | - Francis Roubinet
- Etablissement Français du Sang Occitanie , F-34184 Montpellier , France
| | - Pascal Bailly
- Etablissement Français du Sang PACA Corse , Biologie des Groupes Sanguins , F-13385 Marseille , France.,University of Aix Marseille, CNRS, EFS, ADES , F-13385 Marseille , France
| | - Jean-Charles Brès
- Etablissement Français du Sang Occitanie , F-34184 Montpellier , France.,Pathogenesis and Control of Chronic Infections , University of Montpellier, INSERM, EFS , F-34184 Montpellier , France
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19
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Bonnet R, Farre C, Valera L, Vossier L, Léon F, Dagland T, Pouzet A, Jaffrézic-Renault N, Fareh J, Fournier-Wirth C, Chaix C. Highly labeled methylene blue-ds DNA silica nanoparticles for signal enhancement of immunoassays: application to the sensitive detection of bacteria in human platelet concentrates. Analyst 2018; 143:2293-2303. [DOI: 10.1039/c8an00165k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A nanoparticle-based electrochemical immunoassay for bacteria detection in platelet concentrates.
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Affiliation(s)
- Romaric Bonnet
- Institut des Sciences Analytiques
- UMR 5280 CNRS-Université Claude Bernard Lyon 1-ENS de Lyon
- Lyon
- France
| | - Carole Farre
- Institut des Sciences Analytiques
- UMR 5280 CNRS-Université Claude Bernard Lyon 1-ENS de Lyon
- Lyon
- France
| | | | - Ludivine Vossier
- UMR 1058 Pathogénèse et Contrôle des Infections Chroniques (PCCI)
- EFS
- Inserm
- Université de Montpellier
- Montpellier
| | - Fanny Léon
- UMR 1058 Pathogénèse et Contrôle des Infections Chroniques (PCCI)
- EFS
- Inserm
- Université de Montpellier
- Montpellier
| | | | - Agnès Pouzet
- Bio-Rad
- R&D Marnes la Coquette & Montpellier
- France
| | - Nicole Jaffrézic-Renault
- Institut des Sciences Analytiques
- UMR 5280 CNRS-Université Claude Bernard Lyon 1-ENS de Lyon
- Lyon
- France
| | | | - Chantal Fournier-Wirth
- UMR 1058 Pathogénèse et Contrôle des Infections Chroniques (PCCI)
- EFS
- Inserm
- Université de Montpellier
- Montpellier
| | - Carole Chaix
- Institut des Sciences Analytiques
- UMR 5280 CNRS-Université Claude Bernard Lyon 1-ENS de Lyon
- Lyon
- France
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20
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Vossier L, Leon F, Fournier-Wirth C. Nouvelles approches de détection des bactéries dans les PSL. Transfus Clin Biol 2017. [DOI: 10.1016/j.tracli.2017.06.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Bougard D, Brandel JP, Belondrade M, Beringue V, Segarra C, Fleury H, Laplanche JL, Mayran C, Nicot S, Green A, Welaratne A, Narbey D, Fournier-Wirth C, Knight R, Will R, Tiberghien P, Hai k S, Coste J. Detection of prions in the plasma of presymptomatic and symptomatic patients with variant Creutzfeldt-Jakob disease. Sci Transl Med 2016; 8:370ra182. [DOI: 10.1126/scitranslmed.aag1257] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 05/12/2016] [Accepted: 11/17/2016] [Indexed: 12/13/2022]
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22
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Simonin Y, Loustalot F, Desmetz C, Foulongne V, Constant O, Fournier-Wirth C, Leon F, Molès JP, Goubaud A, Lemaitre JM, Maquart M, Leparc-Goffart I, Briant L, Nagot N, Van de Perre P, Salinas S. Zika Virus Strains Potentially Display Different Infectious Profiles in Human Neural Cells. EBioMedicine 2016; 12:161-169. [PMID: 27688094 PMCID: PMC5078617 DOI: 10.1016/j.ebiom.2016.09.020] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 09/15/2016] [Accepted: 09/19/2016] [Indexed: 01/28/2023] Open
Abstract
The recent Zika virus (ZIKV) epidemic has highlighted the poor knowledge on its physiopathology. Recent studies showed that ZIKV of the Asian lineage, responsible for this international outbreak, causes neuropathology in vitro and in vivo. However, two African lineages exist and the virus is currently found circulating in Africa. The original African strain was also suggested to be neurovirulent but its laboratory usage has been criticized due to its multiple passages. In this study, we compared the French Polynesian (Asian) ZIKV strain to an African strain isolated in Central African Republic and show a difference in infectivity and cellular response between both strains in human neural stem cells and astrocytes. Consistently, this African strain led to a higher infection rate and viral production, as well as stronger cell death and anti-viral response. Our results highlight the need to better characterize the physiopathology and predict neurological impairment associated with African ZIKV.
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Affiliation(s)
- Yannick Simonin
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France; Université de Montpellier, Montpellier, France.
| | - Fabien Loustalot
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France
| | | | - Vincent Foulongne
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France; Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Orianne Constant
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France
| | - Chantal Fournier-Wirth
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France; Etablissement Français du Sang, Montpellier, France
| | - Fanny Leon
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France; Etablissement Français du Sang, Montpellier, France
| | - Jean-Pierre Molès
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France
| | - Aurélien Goubaud
- Institut de Médecine Régénératrice et Biothérapies, INSERM, U1183, Université de Montpellier, CHU Montpellier, Montpellier, France; Plateforme CHU SAFE-IPS, Infrastructure Nationale INGESTEM, Montpellier, France
| | - Jean-Marc Lemaitre
- Institut de Médecine Régénératrice et Biothérapies, INSERM, U1183, Université de Montpellier, CHU Montpellier, Montpellier, France; Plateforme CHU SAFE-IPS, Infrastructure Nationale INGESTEM, Montpellier, France
| | - Marianne Maquart
- Centre National de Référence des Arbovirus, Institut de Recherche Biomédicale des Armées, Marseille, France
| | - Isabelle Leparc-Goffart
- Centre National de Référence des Arbovirus, Institut de Recherche Biomédicale des Armées, Marseille, France
| | - Laurence Briant
- Centre d'études d'agents Pathogènes et Biotechnologies pour la Santé, FRE3689, CNRS-Université de Montpellier, Montpellier, France
| | - Nicolas Nagot
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France; Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Philippe Van de Perre
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France; Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Sara Salinas
- UMR 1058, INSERM, Université de Montpellier, Etablissement Français du Sang Pathogenesis and Control of Chronic Infections, Inserm, Montpellier, France.
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Salinas S, Foulongne V, Loustalot F, Fournier-Wirth C, Molès JP, Briant L, Nagot N, Van de Perre P, Simonin Y. [Zika virus, an emerging threat]. Med Sci (Paris) 2016; 32:378-86. [PMID: 27137695 DOI: 10.1051/medsci/20163204016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Zika virus, discovered in 1947, is particularly publicized because of its involvement in a major epidemic that began in 2015 and which epicenter is located in Latin America, mainly in Brazil. In the majority of cases (70-80 %) the infection is asymptomatic, however in some patients, moderate fever, skin rash, conjunctivitis and myalgia may occur. More alarming, neurological complications are reported, in particular cases of microcephaly probably resulting from the infection of women in the first or second trimester of pregnancy. Moreover, Guillain-Barré syndromes have also been identified in patients whose infection was confirmed. The extent of the current outbreak reveals the very primitive state of knowledge about the pathophysiology of this virus. Thus, a global effort is being undertaken in order to quickly characterize the molecular interaction of the virus with human cells, but also to develop specific diagnostic assays and vaccinal approaches.
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Affiliation(s)
- Sara Salinas
- UMR 1058, Inserm/université de Montpellier/Établissement français du sang, Pathogenesis and control of chronic infections, Inserm, 60, rue de Navacelles, 34394 Montpellier Cedex 5, France
| | - Vincent Foulongne
- UMR 1058, Inserm/université de Montpellier/Établissement français du sang, Pathogenesis and control of chronic infections, Inserm, 60, rue de Navacelles, 34394 Montpellier Cedex 5, France - Centre hospitalier universitaire de Montpellier, département de bactériologie-virologie, Montpellier, France
| | - Fabien Loustalot
- UMR 1058, Inserm/université de Montpellier/Établissement français du sang, Pathogenesis and control of chronic infections, Inserm, 60, rue de Navacelles, 34394 Montpellier Cedex 5, France
| | - Chantal Fournier-Wirth
- UMR 1058, Inserm/université de Montpellier/Établissement français du sang, Pathogenesis and control of chronic infections, Inserm, 60, rue de Navacelles, 34394 Montpellier Cedex 5, France - Établissement français du sang, parc Euromédecine, 34184 Montpellier Cedex 4, France
| | - Jean-Pierre Molès
- UMR 1058, Inserm/université de Montpellier/Établissement français du sang, Pathogenesis and control of chronic infections, Inserm, 60, rue de Navacelles, 34394 Montpellier Cedex 5, France
| | - Laurence Briant
- CPBS, FRE3689, CNRS-université de Montpellier, 1919, route de Mende, 34293 Montpellier Cedex 5, France
| | - Nicolas Nagot
- UMR 1058, Inserm/université de Montpellier/Établissement français du sang, Pathogenesis and control of chronic infections, Inserm, 60, rue de Navacelles, 34394 Montpellier Cedex 5, France - Centre hospitalier universitaire de Montpellier, département de bactériologie-virologie, Montpellier, France
| | - Philippe Van de Perre
- UMR 1058, Inserm/université de Montpellier/Établissement français du sang, Pathogenesis and control of chronic infections, Inserm, 60, rue de Navacelles, 34394 Montpellier Cedex 5, France - Centre hospitalier universitaire de Montpellier, département de bactériologie-virologie, Montpellier, France
| | - Yannick Simonin
- UMR 1058, Inserm/université de Montpellier/Établissement français du sang, Pathogenesis and control of chronic infections, Inserm, 60, rue de Navacelles, 34394 Montpellier Cedex 5, France - Université de Montpellier, 4, boulevard Henri IV, 34967 Montpellier Cedex 2, France
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Garraud O, Morel P, Coste J, Tiberghien P, Fournier-Wirth C. Transfusion sanguine : un modèle de questionnement en recherche et développement. Presse Med 2015; 44:233-40. [DOI: 10.1016/j.lpm.2014.06.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 06/29/2014] [Indexed: 02/05/2023] Open
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El Ichi S, Leon F, Vossier L, Marchandin H, Errachid A, Coste J, Jaffrezic-Renault N, Fournier-Wirth C. Microconductometric immunosensor for label-free and sensitive detection of Gram-negative bacteria. Biosens Bioelectron 2014; 54:378-84. [DOI: 10.1016/j.bios.2013.11.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 10/18/2013] [Accepted: 11/05/2013] [Indexed: 12/11/2022]
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Vossier L, Leon F, Bachelier C, Marchandin H, Lehmann S, Leonetti JP, Brodolin K, Coste J, Fournier-Wirth C. An innovative biologic recycling process of leukoreduction filters to produce active human antimicrobial peptides. Transfusion 2013; 54:1332-9. [PMID: 24117506 DOI: 10.1111/trf.12444] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 08/06/2013] [Accepted: 08/14/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND Human neutrophil peptides (HNPs) 1 to 3 are the major antimicrobial peptides of the azurophilic granules of neutrophils. They represent an important arm of the innate immune system. Their production by chemical synthesis and recombinant technologies is expensive and limited by technical constraints due to their composition and the presence of three disulfide bonds. STUDY DESIGN AND METHODS We have developed an original approach based on the purification of the natural human defensins HNPs 1 to 3 from neutrophils trapped on leukoreduction filters used in blood processing. The purification of HNPs 1 to 3 from these filters is performed in two steps: extraction of HNPs 1 to 3 retained in the filters followed by their immunoprecipitation. Studies were performed to determine the stability of defensins in the filters stored at room temperature. The activity of HNPs 1 to 3 obtained by our rapid protocol was validated by determining minimal inhibitory concentrations (MICs) against six reference bacterial strains and 12 clinical isolates. RESULTS The human defensins HNPs 1 to 3 extracted from leukoreduction filters displayed high antimicrobial activity against tested strains, with MIC values between 0.12 and 1 μg/mL. Kinetics assays showed the appearance of activity 15 minutes after peptide addition. Moreover, we found that the HNPs 1 to 3 purified from leukoreduction filters that had been stored for 45 days at room temperature remained active. CONCLUSION Leukoreduction filters provide a rich and safe source of active human defensins HNPs 1 to 3. Moreover, the stability of the peptides in filters stored at room temperature allows envisaging a large-scale development of the process.
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Affiliation(s)
- Ludivine Vossier
- Laboratoire TransDiag, Etablissement Français du Sang Pyrénées-Méditerranée, Montpellier, France
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Lereau M, Fournier-Wirth C, Mayen J, Farre C, Meyer A, Dugas V, Cantaloube JF, Chaix C, Vasseur JJ, Morvan F. Development of Innovative and Versatile Polythiol Probes for Use on ELOSA or Electrochemical Biosensors: Application in Hepatitis C Virus Genotyping. Anal Chem 2013; 85:9204-12. [DOI: 10.1021/ac401941x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Myriam Lereau
- Laboratoire
TransDiag—Sécurité Transfusionnelle et Innovation
Diagnostique, Etablissement Français du Sang Pyrénées-Méditerranée, Montpellier, 34184, France
- Département
des Analogues et Constituants des Acides Nucléiques, Institut
des Biomolécules Max Mousseron, UMR 5247 CNRS Université Montpellier 1 Université Montpellier 2, Montpellier, 34095, France
| | - Chantal Fournier-Wirth
- Laboratoire
TransDiag—Sécurité Transfusionnelle et Innovation
Diagnostique, Etablissement Français du Sang Pyrénées-Méditerranée, Montpellier, 34184, France
| | - Julie Mayen
- Département
des Analogues et Constituants des Acides Nucléiques, Institut
des Biomolécules Max Mousseron, UMR 5247 CNRS Université Montpellier 1 Université Montpellier 2, Montpellier, 34095, France
| | - Carole Farre
- Département
Laboratoire des Sciences Analytiques, Institut des Sciences Analytiques, UMR 5280 CNRS Université de Lyon, Université Lyon 1, Villeurbanne, 69100, France
| | - Albert Meyer
- Département
des Analogues et Constituants des Acides Nucléiques, Institut
des Biomolécules Max Mousseron, UMR 5247 CNRS Université Montpellier 1 Université Montpellier 2, Montpellier, 34095, France
| | - Vincent Dugas
- Département
Laboratoire des Sciences Analytiques, Institut des Sciences Analytiques, UMR 5280 CNRS Université de Lyon, Université Lyon 1, Villeurbanne, 69100, France
| | - Jean-François Cantaloube
- Laboratoire
Emergence et Co-évolution Virale, Etablissement Français du Sang Alpes-Méditerranée, Marseille, 13005, France
| | - Carole Chaix
- Département
Laboratoire des Sciences Analytiques, Institut des Sciences Analytiques, UMR 5280 CNRS Université de Lyon, Université Lyon 1, Villeurbanne, 69100, France
| | - Jean-Jacques Vasseur
- Département
des Analogues et Constituants des Acides Nucléiques, Institut
des Biomolécules Max Mousseron, UMR 5247 CNRS Université Montpellier 1 Université Montpellier 2, Montpellier, 34095, France
| | - François Morvan
- Département
des Analogues et Constituants des Acides Nucléiques, Institut
des Biomolécules Max Mousseron, UMR 5247 CNRS Université Montpellier 1 Université Montpellier 2, Montpellier, 34095, France
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Vossier L, Leon F, Coste J, Fournier-Wirth C. Production de peptides antimicrobiens naturels actifs par recyclage biologique. Transfus Clin Biol 2013. [DOI: 10.1016/j.tracli.2013.03.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Petrik J, Coste J, Fournier-Wirth C. Advances in transfusion medicine in the first decade of the 21st century: Advances in miniaturized technologies. Transfus Apher Sci 2011; 45:45-51. [PMID: 21715229 DOI: 10.1016/j.transci.2011.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Several miniaturized high throughput technologies have been developed in the last decade, primarily to study genomic structures and gene expression patterns under various conditions. At the same time, the microarrays, biosensors, integrated microfluidic lab-on-a-chip devices, next generation sequencing or digital PCR are gradually finding their diagnostic applications, although their suitability for specialised diagnostic fields has still to be assessed. In this review we discuss the potential applications of the new technologies to blood testing.
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Affiliation(s)
- J Petrik
- Scottish National Blood Transfusion Service, Edinburgh, UK.
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Maumus M, Peyrafitte JA, D'Angelo R, Fournier-Wirth C, Bouloumié A, Casteilla L, Sengenès C, Bourin P. Native human adipose stromal cells: localization, morphology and phenotype. Int J Obes (Lond) 2011; 35:1141-53. [PMID: 21266947 PMCID: PMC3172585 DOI: 10.1038/ijo.2010.269] [Citation(s) in RCA: 403] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Objectives: Beside having roles in energy homeostasis and endocrine modulation, adipose tissue (AT) is now considered a promising source of mesenchymal stromal cells (adipose-derived stromal cells or ASCs) for regenerative medicine. Despite numerous studies on cultured ASCs, native human ASCs are rarely investigated. Indeed, the phenotype of ASCs in their native state, their localization within AT and comparison with bone marrow-derived mesenchymal stromal cells (BM-MSCs) has been poorly investigated. Design: To address these issues, the stroma vascular fraction (SVF) of human AT was extracted and native cell subtypes were isolated by immunoselection to study their clonogenic potential in culture. Immunohistology on samples of human AT in combination with reconstruction of confocal sections were performed in order to localize ASCs. Results: Compared with BM-MNCs, all native ASCs were found in the CD34+ cell fraction of the AT-SVF. Native ASCs expressed classical mesenchymal markers described for BM-MSCs. Interestingly, CD34 expression decreased during ASC cell culture and was negatively correlated with cell proliferation rate. Immunohistological analysis revealed that native ASCs exhibited specific morphological features with protrusions. They were found scattered in AT stroma and did not express in vivo pericytic markers such as NG2, CD140b or alpha-smooth muscle actin, which appeared during the culture process. Finally, ASCs spontaneous commitment to adipocytic lineage was enhanced in AT from obese humans. Conclusions: The use of complementary methodological approaches to study native human ASCs revealed their immunophenotype, their specific morphology, their location within AT and their stemness. Furthermore, our data strongly suggest that human ASCs participate in adipogenesis during AT development.
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Affiliation(s)
- M Maumus
- Institut National de Santé et de Recherche Médicale (INSERM), U858, Université Toulouse III Paul Sabatier, Institut de Médecine Moléculaire de Rangueil (I2MR), Equipe n°1 AVENIR, Toulouse, France
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Abstract
Transfusion safety relating to blood-transmissible agents is a major public health concern, particularly when faced with the continuing emergence of new infectious agents. These include new viruses appearing alongside other known reemerging viruses (West Nile virus, Chikungunya) as well as new strains of bacteria and parasites (Plasmodium falciparum, Trypanosoma cruzi) and finally pathologic prion protein (variant Creutzfeldt-Jakob disease). Genomic mutations of known viruses (hepatitis B virus, hepatitis C virus, human immunodeficiency virus) can also be at the origin of variants susceptible to escaping detection by diagnostic tests. New technologies that would allow the simultaneous detection of several blood-transmissible agents are now needed for the development and improvement of screening strategies. DNA microarrays have been developed for use in immunohematology laboratories for blood group genotyping. Their application in the detection of infectious agents, however, has been hindered by additional technological hurdles. For instance, the variability among and within genomes of interest complicate target amplification and multiplex analysis. Advances in biosensor technologies based on alternative detection strategies have offered new perspectives on pathogen detection; however, whether they are adaptable to diagnostic applications testing biologic fluids is under debate. Elsewhere, current nanotechnologies now offer new tools to improve the sample preparation, target capture, and detection steps. Second-generation devices combining micro- and nanotechnologies have brought us one step closer to the potential development of innovative and multiplexed approaches applicable to the screening of blood for transmissible agents.
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Affiliation(s)
- Chantal Fournier-Wirth
- Laboratoire de R&D-Agents Transmissibles par Transfusion (R&D-ATT), Etablissement Français du Sang Pyrénées-Méditerranée, Montpellier, France.
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Fournier-Wirth C, Coste J. Nanotechnologies for pathogen detection: Future alternatives? Biologicals 2010; 38:9-13. [DOI: 10.1016/j.biologicals.2009.10.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Accepted: 10/23/2009] [Indexed: 12/01/2022] Open
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Hnaiein M, Hassen W, Abdelghani A, Fournier-Wirth C, Coste J, Bessueille F, Leonard D, Jaffrezic-Renault N. A conductometric immunosensor based on functionalized magnetite nanoparticles for E. coli detection. Electrochem commun 2008. [DOI: 10.1016/j.elecom.2008.04.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Molina S, Missé D, Roche S, Badiou S, Cristol JP, Bonfils C, Dierick JF, Veas F, Levayer T, Bonnefont-Rousselot D, Maurel P, Coste J, Fournier-Wirth C. Identification of apolipoprotein C-III as a potential plasmatic biomarker associated with the resolution of hepatitis C virus infection. Proteomics Clin Appl 2008; 2:751-61. [DOI: 10.1002/prca.200800020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Maalouf R, Hassen WM, Fournier-Wirth C, Coste J, Jaffrezic-Renault N. Comparison of two innovatives approaches for bacterial detection: paramagnetic nanoparticles and self-assembled multilayer processes. Mikrochim Acta 2008. [DOI: 10.1007/s00604-008-0008-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Maalouf R, Fournier-Wirth C, Coste J, Chebib H, Saïkali Y, Vittori O, Errachid A, Cloarec JP, Martelet C, Jaffrezic-Renault N. Label-Free Detection of Bacteria by Electrochemical Impedance Spectroscopy: Comparison to Surface Plasmon Resonance. Anal Chem 2007; 79:4879-86. [PMID: 17523594 DOI: 10.1021/ac070085n] [Citation(s) in RCA: 150] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The low but known risk of bacterial contamination has emerged as the greatest residual threat of transfusion-transmitted diseases. Label-free detection of a bacterial model, Escherichia coli, is performed using nonfaradic electrochemical impedance spectroscopy (EIS). Biotinylated polyclonal anti-E. coli is linked to a mixed self-assembled monolayer (SAM) on a gold electrode through a strong biotin-neutravidin interaction. The binding of one antibody molecule for 3.6 neutravidin molecules is determined using the surface plasmon resonance (SPR). The detection limit of E. coli found by SPR is 10(7) cfu/mL. After modeling the impedance Nyquist plot of E. coli/anti-E. coli/mixed SAM/gold electrode for increasing concentrations of E. coli (whole bacteria or lysed bacteria), the main parameter that is modified is the polarization resistance RP. A sigmoid variation of RP is observed when the log concentration of bacteria (whole or lysed) increases. A concentration of 10 cfu/mL whole bacteria is detected by EIS measurements while 103 cfu/mL is detected for lysed E. coli.
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Affiliation(s)
- Rita Maalouf
- AMPERE, UMR/CNRS 5005 and INL, UMR/CNRS 5270, Ecole Centrale de Lyon, 36, 69134 Ecully, France.
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Molina S, Castet V, Fournier-Wirth C, Pichard-Garcia L, Avner R, Harats D, Roitelman J, Barbaras R, Graber P, Ghersa P, Smolarsky M, Funaro A, Malavasi F, Larrey D, Coste J, Fabre JM, Sa-Cunha A, Maurel P. The low-density lipoprotein receptor plays a role in the infection of primary human hepatocytes by hepatitis C virus. J Hepatol 2007; 46:411-9. [PMID: 17156886 DOI: 10.1016/j.jhep.2006.09.024] [Citation(s) in RCA: 214] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2006] [Revised: 09/26/2006] [Accepted: 09/29/2006] [Indexed: 12/20/2022]
Abstract
BACKGROUND/AIMS The direct implication of low-density lipoprotein receptor (LDLR) in hepatitis C virus (HCV) infection of human hepatocyte has not been demonstrated. Normal primary human hepatocytes infected by serum HCV were used to document this point. METHODS Expression and activity of LDLR were assessed by RT-PCR and LDL entry, in the absence or presence of squalestatin or 25-hydroxycholesterol that up- or down-regulates LDLR expression, respectively. Infection was performed in the absence or presence of LDL, HDL, recombinant soluble LDLR peptides encompassing full-length (r-shLDLR4-292) or truncated (r-shLDLR4-166) LDL-binding domain, monoclonal antibodies against r-shLDLR4-292, squalestatin or 25-hydroxycholesterol. Intracellular amounts of replicative and genomic HCV RNA strands used as end point of infection were assessed by RT-PCR. RESULTS r-shLDLR4-292, antibodies against r-shLDLR4-292 and LDL inhibited viral RNA accumulation, irrespective of genotype, viral load or liver donor. Inhibition was greatest when r-shLDLR4-292 was present at the time of inoculation and gradually decreased as the delay between inoculation and r-shLDLR4-292 treatment increased. In hepatocytes pre-treated with squalestatin or 25-hydroxycholesterol before infection, viral RNA accumulation increased or decreased in parallel with LDLR mRNA expression and LDL entry. CONCLUSIONS LDLR is involved at an early stage in infection of normal human hepatocytes by serum-derived HCV virions.
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MESH Headings
- Adolescent
- Adult
- Aged
- Antibodies/physiology
- Anticholesteremic Agents/pharmacology
- Bridged Bicyclo Compounds, Heterocyclic/pharmacology
- CD18 Antigens/physiology
- Cells, Cultured
- Female
- Gene Expression Regulation/drug effects
- Hepacivirus/genetics
- Hepacivirus/pathogenicity
- Hepacivirus/physiology
- Hepatitis C/pathology
- Hepatitis C/physiopathology
- Hepatocytes/pathology
- Hepatocytes/virology
- Humans
- Hydroxycholesterols/pharmacology
- Lipoproteins, HDL/physiology
- Lipoproteins, LDL/physiology
- Male
- Middle Aged
- RNA, Viral/genetics
- RNA, Viral/metabolism
- Receptors, LDL/genetics
- Receptors, LDL/immunology
- Receptors, LDL/physiology
- Scavenger Receptors, Class B/physiology
- Tricarboxylic Acids/pharmacology
- Viral Load
- Virion
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Affiliation(s)
- Sonia Molina
- Inserm, U632, Hepatic Physiopathology, 1919 route de Mende, 34293 Montpellier Cedex 5, France
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Fournier-Wirth C, Coste J. Fitting new technologies into the safety paradigm: use of microarrays in transfusion. Dev Biol (Basel) 2007; 127:61-70. [PMID: 17486881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Until the late 1990s, mandatory blood screening for transmissible infectious agents depended entirely on antigen/antibody-based detection assays. The recent emergence of Nucleic acid Amplification Technologies (NAT) has revolutionised viral diagnosis, not only by increasing the level of sensitivity but also by facilitating the detection of several viruses in parallel by multiplexing specific primers. In more complex biological situations, when a broad spectrum of pathogens must be screened, the limitations of these first generation technologies became apparent. High throughput systems, such as DNA Arrays, permit a conceptually new approach. These miniaturised micro systems allow the detection of hundreds of different targets simultaneously, inducing a dramatic decrease in reagent consumption, a reduction in the number of confirmation tests and a simplification of data interpretation. However, the systems currently available require additional instrumentation and reagents for sample preparation and target amplification prior to detection on the DNA array. A major challenge in the area of DNA detection is the development of methods that do not rely on target amplification systems. Likewise, the advances of protein microarrays have lagged because of poor stability of proteins, complex coupling chemistry and weak detection signals. Emerging technologies like Biosensors and nano-particle based DNA or Protein Bio-Barcode Amplification Assays are promising diagnostic tools for a wide range of clinical applications, including blood donation screening.
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Affiliation(s)
- C Fournier-Wirth
- Transfusion Transmitted Infectious Diseases R&D Unit, EFS Pyrénées Méditerranée, Montpellier, France
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Fournier-Wirth C, Deschaseaux M, Defer C, Godreuil S, Carrière C, Bertrand X, Tunez V, Schneider T, Coste J, Morel P. Evaluation of the enhanced bacterial detection system for screening of contaminated platelets. Transfusion 2006; 46:220-4. [PMID: 16441598 DOI: 10.1111/j.1537-2995.2006.00704.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The Pall third-generation enhanced bacterial detection system (eBDS) was recently approved for detection of bacterial contamination in leukoreduced platelets (PLTs). The method is based on the measurement of the oxygen content as a marker for bacteria. eBDS incorporates major modifications including removal of the sample-set filter, modification of the culture medium, and incubation with agitation of the sample pouch. STUDY DESIGN AND METHODS Ten whole blood-derived random-donor PLT units collected on Day 1 after donation and 10 single-donor apheresis PLT units were spiked with low levels of bacteria in three different blood transfusion centers. Inoculation was performed at a final concentration of 5 to 50 colony-forming units per mL with reference strains of five organisms involved in severe transfusion-associated infections. PLT units were stored at 22 degrees C for 24 hours before sampling. Six sample sets were then sterile-connected to each unit and placed on a horizontal agitator at 35 degrees C for 18 or 24 hours of incubation. RESULTS No false-positive results were obtained, indicating a 100 percent specificity of the assay. Of 126 spiked sample pouches tested, 61 of 63 (96.82%) and 63 of 63 (100%) were detected positive after 18 or 24 hours of incubation, respectively. In the two missed cases that failed to detect Bacillus cereus, the measured oxygen was slightly above the detection threshold but was markedly different from the negative samples. CONCLUSION The eBDS method allows definitive testing of PLTs as soon as 42 hours after collection and offers an alternative culture method to the BacT/ALERT system.
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Abstract
GB virus-C alias "hepatitis" virus G was discovered in 1995 as a putative causative virus of non A-E hepatitis. It is a very common virus found in 1 to 5% of eligible blood donors in developed countries. Numerous studies over seven years led to the exclusion of its role as a significant etiological agent of hepatitis. Its in vivo replication site is still unknown. Its direct involvement in the induction of significant hepatic or extra-hepatic diseases could not be demonstrated. However, coinfections with other viruses may contribute to changes in the evolution of both liver disease (negatively) and HIV/AIDS (favourably). Today, no country has decided to screen GBV-C in blood donors. However, more studies are necessary before the absence of influence of GBV-C infection on human health in the context of other viral infections could be confirmed definitely. This article is a review of the literature on a possible involvement of GBV-C in pathologies whether associated or not to other infections.
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Affiliation(s)
- V Chams
- Etablissement français du sang, 100 avenue de Suffren, 75015 Paris, France.
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Sureau C, Fournier-Wirth C, Maurel P. Role of N glycosylation of hepatitis B virus envelope proteins in morphogenesis and infectivity of hepatitis delta virus. J Virol 2003; 77:5519-23. [PMID: 12692255 PMCID: PMC153980 DOI: 10.1128/jvi.77.9.5519-5523.2003] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Hepatitis delta virus (HDV) particles are coated with the large (L), middle (M), and small (S) hepatitis B virus envelope proteins. In the present study, we constructed glycosylation-defective envelope protein mutants and evaluated their capacity to assist in the maturation of infectious HDV in vitro. We observed that the removal of N-linked carbohydrates on the S, M, and L proteins was tolerated for the assembly of subviral hepatitis B virus (HBV) particles but was partially inhibitory for the formation of HDV virions. However, when assayed on primary cultures of human hepatocytes, virions coated with S, M, and L proteins lacking N-linked glycans were infectious. Furthermore, in the absence of M, HDV particles coated with nonglycosylated S and L proteins retained infectivity. These results indicate that carbohydrates on the HBV envelope proteins are not essential for the in vitro infectivity of HDV.
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Affiliation(s)
- Camille Sureau
- Laboratoire de Virologie Moléculaire, INSERM U76, INTS, Paris, France.
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