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Ahangari A, Mahmoodi P, Mohammadzadeh A. Advanced nano biosensors for rapid detection of zoonotic bacteria. Biotechnol Bioeng 2023; 120:41-56. [PMID: 36253878 DOI: 10.1002/bit.28266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 09/09/2022] [Accepted: 10/11/2022] [Indexed: 11/07/2022]
Abstract
An infectious disease that is transmitted from animals to humans and vice-versa is called zoonosis. Bacterial zoonotic diseases can re-emerge after they have been eradicated or controlled and are among the world's major health problems which inflict tremendous burden on healthcare systems. The first step to encounter such illnesses can be early and precise detection of bacterial pathogens to further prevent the following losses due to their infections. Although conventional methods for diagnosing pathogens, including culture-based, polymerase chain reaction-based, and immunological-based techniques, benefit from their advantages, they also have their own drawbacks, for example, taking long time to provide results, and requiring laborious work, expensive materials, and special equipment in certain conditions. Consequently, there is a greater tendency to introduce simple, innovative, quicker, accurate, and low-cost detection methods to effectively characterize the causative agents of infectious diseases. Biosensors, therefore, seem to practically be one of those novel promising diagnostic tools on this aim. These are effective and reliable elements with high sensitivity and specificity, that their usability can even be improved in medical diagnostic systems when empowered by nanoparticles. In the present review, recent advances in the development of several bio and nano biosensors, for rapid detection of zoonotic bacteria, have been discussed in details.
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Affiliation(s)
- Azam Ahangari
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
| | - Pezhman Mahmoodi
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
| | - Abdolmajid Mohammadzadeh
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
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2
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Kumar DN, Baider Z, Elad D, Blum SE, Shtenberg G. Botulinum Neurotoxin C Dual Detection through Immunological Recognition and Endopeptidase Activity Using Porous Silicon Interferometers. Anal Chem 2022; 94:5927-5936. [PMID: 35385264 DOI: 10.1021/acs.analchem.2c00255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Botulinum neurotoxins (BoNTs) are the most potent toxins known in nature produced by Clostridium botulinum strains, which can cause life-threatening diseases in both humans and animals. The latter is of serious environmental and economic concern, resulting in high mortality, production losses, and rejection of contaminated animal feed. The available in vivo mouse assay is inadequate for real-time and on-site assessment of outbreaks. Herein, we present a reflective-based approach for the detection of BoNT/C while estimating its activity. Two adjacent porous Si Fabry-Pérot interferometers are simultaneously utilized to quantify minute BoNT/C concentrations by a competitive immunoassay and to assess their endopeptidase activity. The reflectivity signals of each interferometer are amplified by biochemical reaction products infiltration into the scaffold or by peptide fragments detachment from the nanostructure. The optical assay is highly sensitive in compliance with the in vivo approach by presenting a detection limit of 4.24 pg mL-1. The specificity and selectivity of the designed platform are cross-validated against BoNT/B and BoNT/D, also relevant to animal health. Finally, the analytical performances of both interferometers for real-life scenarios are confirmed using actual toxins while depicting excellent compliance to complex media analysis. Overall, the presented sensing scheme offers an efficient, rapid, and label-free approach for potential biodiagnostic elucidation of botulism outbreaks.
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Affiliation(s)
- D Nanda Kumar
- Institute of Agricultural Engineering, ARO, Volcani Institute, Rishon LeZion 7505101, Israel
| | - Zina Baider
- Botulism National Reference Laboratory, Department of Bacteriology, Kimron Veterinary Institute, Bet Dagan 50200, Israel
| | - Daniel Elad
- Botulism National Reference Laboratory, Department of Bacteriology, Kimron Veterinary Institute, Bet Dagan 50200, Israel
| | - Shlomo E Blum
- Botulism National Reference Laboratory, Department of Bacteriology, Kimron Veterinary Institute, Bet Dagan 50200, Israel
| | - Giorgi Shtenberg
- Institute of Agricultural Engineering, ARO, Volcani Institute, Rishon LeZion 7505101, Israel
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3
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Mechaly A, Diamant E, Alcalay R, Ben David A, Dor E, Torgeman A, Barnea A, Girshengorn M, Levin L, Epstein E, Tennenhouse A, Fleishman SJ, Zichel R, Mazor O. Highly Specific Monoclonal Antibody Targeting the Botulinum Neurotoxin Type E Exposed SNAP-25 Neoepitope. Antibodies (Basel) 2022; 11:21. [PMID: 35323195 PMCID: PMC8944829 DOI: 10.3390/antib11010021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/07/2022] [Accepted: 03/13/2022] [Indexed: 12/31/2022] Open
Abstract
Botulinum neurotoxin type E (BoNT/E), the fastest acting toxin of all BoNTs, cleaves the 25 kDa synaptosomal-associated protein (SNAP-25) in motor neurons, leading to flaccid paralysis. The specific detection and quantification of the BoNT/E-cleaved SNAP-25 neoepitope can facilitate the development of cell-based assays for the characterization of anti-BoNT/E antibody preparations. In order to isolate highly specific monoclonal antibodies suitable for the in vitro immuno-detection of the exposed neoepitope, mice and rabbits were immunized with an eight amino acid peptide composed of the C-terminus of the cleaved SNAP-25. The immunized rabbits developed a specific and robust polyclonal antibody response, whereas the immunized mice mostly demonstrated a weak antibody response that could not discriminate between the two forms of SNAP-25. An immune scFv phage-display library was constructed from the immunized rabbits and a panel of antibodies was isolated. The sequence alignment of the isolated clones revealed high similarity between both heavy and light chains with exceptionally short HCDR3 sequences. A chimeric scFv-Fc antibody was further expressed and characterized, exhibiting a selective, ultra-high affinity (pM) towards the SNAP-25 neoepitope. Moreover, this antibody enabled the sensitive detection of cleaved SNAP-25 in BoNT/E treated SiMa cells with no cross reactivity with the intact SNAP-25. Thus, by applying an immunization and selection procedure, we have isolated a novel, specific and high-affinity antibody against the BoNT/E-derived SNAP-25 neoepitope. This novel antibody can be applied in in vitro assays that determine the potency of antitoxin preparations and reduce the use of laboratory animals for these purposes.
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Affiliation(s)
- Adva Mechaly
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel;
| | - Eran Diamant
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel; (E.D.); (A.B.D.); (E.D.); (A.T.); (A.B.); (M.G.); (L.L.); (E.E.); (R.Z.)
| | - Ron Alcalay
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel;
| | - Alon Ben David
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel; (E.D.); (A.B.D.); (E.D.); (A.T.); (A.B.); (M.G.); (L.L.); (E.E.); (R.Z.)
| | - Eyal Dor
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel; (E.D.); (A.B.D.); (E.D.); (A.T.); (A.B.); (M.G.); (L.L.); (E.E.); (R.Z.)
| | - Amram Torgeman
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel; (E.D.); (A.B.D.); (E.D.); (A.T.); (A.B.); (M.G.); (L.L.); (E.E.); (R.Z.)
| | - Ada Barnea
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel; (E.D.); (A.B.D.); (E.D.); (A.T.); (A.B.); (M.G.); (L.L.); (E.E.); (R.Z.)
| | - Meni Girshengorn
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel; (E.D.); (A.B.D.); (E.D.); (A.T.); (A.B.); (M.G.); (L.L.); (E.E.); (R.Z.)
| | - Lilach Levin
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel; (E.D.); (A.B.D.); (E.D.); (A.T.); (A.B.); (M.G.); (L.L.); (E.E.); (R.Z.)
| | - Eyal Epstein
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel; (E.D.); (A.B.D.); (E.D.); (A.T.); (A.B.); (M.G.); (L.L.); (E.E.); (R.Z.)
| | - Ariel Tennenhouse
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 7600001, Israel; (A.T.); (S.J.F.)
| | - Sarel J. Fleishman
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 7600001, Israel; (A.T.); (S.J.F.)
| | - Ran Zichel
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel; (E.D.); (A.B.D.); (E.D.); (A.T.); (A.B.); (M.G.); (L.L.); (E.E.); (R.Z.)
| | - Ohad Mazor
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness-Ziona 7410001, Israel;
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Wang Y, Schill KM, Fry HC, Duncan TV. A Quantum Dot Nanobiosensor for Rapid Detection of Botulinum Neurotoxin Serotype E. ACS Sens 2020; 5:2118-2127. [PMID: 32527082 DOI: 10.1021/acssensors.0c00738] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Botulinum neurotoxins (BoNTs) are potent toxins produced by Clostridium bacteria that are responsible for the illness botulism and are listed as bioterrorism agents. BoNT serotype E (BoNT/E) is one of four BoNT serotypes that cause human botulism and is the second most frequent cause of foodborne botulism. Rapid detection and discrimination of BoNT serotypes implicated in human disease are critical for ensuring timely treatment of patients and identifying sources of toxins, but there have been few reported detection methods for BoNT/E and even fewer methods usable for BoNT serotyping. We report a nanobiosensor based on Förster resonance energy transfer (FRET) between semiconductor nanocrystals (quantum dots, QDs) and dark quencher-labeled peptide probes to detect biologically active BoNT/E in aqueous media. The peptide probes contain a specific cleavage site for active BoNT/E. QD photoluminescence, which changes intensity due to FRET when the peptide probe is cleaved, was used to indicate toxin presence and quantity. The detection of a BoNT/E light chain (LcE) and holotoxin was observed within 3 h. The limits of detection were 0.02 and 2 ng/mL for LcE and holotoxin, respectively. The nanobiosensor shows good specificity toward the target in tests with nontarget BoNT serotypes. The high sensitivity, simple operation, short detection time, and ability to be used in parallel with probes developed for other BoNT serotypes indicate that the nanobiosensor will be useful for rapid BoNT/E detection and serotype discrimination in food analysis.
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Affiliation(s)
- Yun Wang
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Bedford Park, Illinois 60501, United States
| | - Kristin M. Schill
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Bedford Park, Illinois 60501, United States
| | - H. Christopher Fry
- Center for Nanoscale Materials, Argonne National Laboratory, DuPage County, Illinois 60439, United States
| | - Timothy V. Duncan
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Bedford Park, Illinois 60501, United States
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Shenbagavalli K, Yadav SK, Ananthappan P, Sundaram E, Ponmariappan S, Vasantha VS. A simple and fast protocol for the synthesis of 2-amino-4-(4-formylphenyl)-4 H-chromene-3-carbonitrile to develop an optical immunoassay for the quantification of botulinum neurotoxin type F. NEW J CHEM 2020. [DOI: 10.1039/d0nj04103c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this study, a novel optical immunoassay platform using (S)-2-amino-4-(4-formylphenyl)-4H-chromene-3-carbonitrile, which was synthesized by an ultra-sonication method, as an optical probe.
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Affiliation(s)
| | - Shiv Kumar Yadav
- Defence Research and Development Establishment
- Gwalior-474 002
- India
| | | | - Ellairaja Sundaram
- Department of Chemistry
- Vivekanada College Tiruvedakam West
- Madurai 625 234
- India
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von Berg L, Stern D, Weisemann J, Rummel A, Dorner MB, Dorner BG. Optimization of SNAP-25 and VAMP-2 Cleavage by Botulinum Neurotoxin Serotypes A-F Employing Taguchi Design-of-Experiments. Toxins (Basel) 2019; 11:toxins11100588. [PMID: 31614566 PMCID: PMC6832249 DOI: 10.3390/toxins11100588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/01/2019] [Accepted: 10/09/2019] [Indexed: 11/17/2022] Open
Abstract
The detection of catalytically active botulinum neurotoxins (BoNTs) can be achieved by monitoring the enzymatic cleavage of soluble NSF (N-ethylmaleimide-sensitive-factor) attachment protein receptor (SNARE) proteins by the toxins’ light chains (LC) in cleavage-based assays. Thus, for sensitive BoNT detection, optimal cleavage conditions for the clinically relevant A–F serotypes are required. Until now, a systematic evaluation of cleavage conditions for the different BoNT serotypes is still lacking. To address this issue, we optimized cleavage conditions for BoNT/A–F using the Taguchi design-of-experiments (DoE) method. To this aim, we analyzed the influence of buffer composition (pH, Zn2+, DTT (dithiothreitol), NaCl) as well as frequently used additives (BSA (bovine serum albumin), Tween 20, trimethylamine N-oxide (TMAO)) on BoNT substrate cleavage. We identified major critical factors (DTT, Zn2+, TMAO) and were able to increase the catalytic efficiency of BoNT/B, C, E, and F when compared to previously described buffers. Moreover, we designed a single consensus buffer for the optimal cleavage of all tested serotypes. Our optimized buffers are instrumental to increase the sensitivity of cleavage-based assays for BoNT detection. Furthermore, the application of the Taguchi DoE approach shows how the method helps to rationally improve enzymatic assays.
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Affiliation(s)
- Laura von Berg
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany.
| | - Daniel Stern
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany.
| | - Jasmin Weisemann
- Institut für Toxikologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
| | - Andreas Rummel
- Institut für Toxikologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
| | - Martin Bernhard Dorner
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany.
| | - Brigitte Gertrud Dorner
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany.
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7
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Pohanka M. Current Trends in the Biosensors for Biological Warfare Agents Assay. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2303. [PMID: 31323857 PMCID: PMC6678440 DOI: 10.3390/ma12142303] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 07/16/2019] [Accepted: 07/17/2019] [Indexed: 02/07/2023]
Abstract
Biosensors are analytical devices combining a physical sensor with a part of biological origin providing sensitivity and selectivity toward analyte. Biological warfare agents are infectious microorganisms or toxins with the capability to harm or kill humans. They can be produced and spread by a military or misused by a terrorist group. For example, Bacillus anthracis, Francisella tularensis, Brucella sp., Yersinia pestis, staphylococcal enterotoxin B, botulinum toxin and orthopoxviruses are typical biological warfare agents. Biosensors for biological warfare agents serve as simple but reliable analytical tools for the both field and laboratory assay. There are examples of commercially available biosensors, but research and development of new types continue and their application in praxis can be expected in the future. This review summarizes the facts and role of biosensors in the biological warfare agents' assay, and shows current commercially available devices and trends in research of the news. Survey of actual literature is provided.
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Affiliation(s)
- Miroslav Pohanka
- Faculty of Military Health Sciences, University of Defense, Trebesska 1575, CZ-50001 Hradec Kralove, Czech Republic.
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8
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Hobbs RJ, Thomas CA, Halliwell J, Gwenin CD. Rapid Detection of Botulinum Neurotoxins-A Review. Toxins (Basel) 2019; 11:E418. [PMID: 31319550 PMCID: PMC6669533 DOI: 10.3390/toxins11070418] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/15/2019] [Accepted: 07/15/2019] [Indexed: 12/13/2022] Open
Abstract
A toxin is a poisonous substance produced within living cells or organisms. One of the most potent groups of toxins currently known are the Botulinum Neurotoxins (BoNTs). These are so deadly that as little as 62 ng could kill an average human; to put this into context that is approximately 200,000 × less than the weight of a grain of sand. The extreme toxicity of BoNTs leads to the need for methods of determining their concentration at very low levels of sensitivity. Currently the mouse bioassay is the most widely used detection method monitoring the activity of the toxin; however, this assay is not only lengthy, it also has both cost and ethical issues due to the use of live animals. This review focuses on detection methods both existing and emerging that remove the need for the use of animals and will look at three areas; speed of detection, sensitivity of detection and finally cost. The assays will have wide reaching interest, ranging from the pharmaceutical/clinical industry for production quality management or as a point of care sensor in suspected cases of botulism, the food industry as a quality control measure, to the military, detecting BoNT that has been potentially used as a bio warfare agent.
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Affiliation(s)
- Robert J Hobbs
- Applied Research in Chemistry and Health (ARCH) Research Group, School of Natural Sciences, Bangor University, Bangor, Gwynedd, Wales LL57 2UW, UK
| | - Carol A Thomas
- Applied Research in Chemistry and Health (ARCH) Research Group, School of Natural Sciences, Bangor University, Bangor, Gwynedd, Wales LL57 2UW, UK
| | - Jennifer Halliwell
- Applied Research in Chemistry and Health (ARCH) Research Group, School of Natural Sciences, Bangor University, Bangor, Gwynedd, Wales LL57 2UW, UK
| | - Christopher D Gwenin
- Applied Research in Chemistry and Health (ARCH) Research Group, School of Natural Sciences, Bangor University, Bangor, Gwynedd, Wales LL57 2UW, UK.
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von Berg L, Stern D, Pauly D, Mahrhold S, Weisemann J, Jentsch L, Hansbauer EM, Müller C, Avondet MA, Rummel A, Dorner MB, Dorner BG. Functional detection of botulinum neurotoxin serotypes A to F by monoclonal neoepitope-specific antibodies and suspension array technology. Sci Rep 2019; 9:5531. [PMID: 30940836 PMCID: PMC6445094 DOI: 10.1038/s41598-019-41722-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/15/2019] [Indexed: 12/26/2022] Open
Abstract
Botulinum neurotoxins (BoNTs) are the most potent toxins known and cause the life threatening disease botulism. Sensitive and broad detection is extremely challenging due to the toxins' high potency and molecular heterogeneity with several serotypes and more than 40 subtypes. The toxicity of BoNT is mediated by enzymatic cleavage of different synaptic proteins involved in neurotransmitter release at serotype-specific cleavage sites. Hence, active BoNTs can be monitored and distinguished in vitro by detecting their substrate cleavage products. In this work, we developed a comprehensive panel of monoclonal neoepitope antibodies (Neo-mAbs) highly specific for the newly generated N- and/or C-termini of the substrate cleavage products of BoNT serotypes A to F. The Neo-mAbs were implemented in a set of three enzymatic assays for the simultaneous detection of two BoNT serotypes each by monitoring substrate cleavage on colour-coded magnetic Luminex-beads. For the first time, all relevant serotypes could be detected in parallel by a routine in vitro activity assay in spiked serum and food samples yielding excellent detection limits in the range of the mouse bioassay or better (0.3-80 pg/mL). Therefore, this work represents a major step towards the replacement of the mouse bioassay for botulism diagnostics.
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Affiliation(s)
- Laura von Berg
- Biological Toxins (ZBS 3), Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, 13353, Germany
| | - Daniel Stern
- Biological Toxins (ZBS 3), Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, 13353, Germany
| | - Diana Pauly
- Biological Toxins (ZBS 3), Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, 13353, Germany
- Department of Ophthalmology, University Hospital Regensburg, Regensburg, 93053, Germany
| | - Stefan Mahrhold
- Institut für Toxikologie, Medizinische Hochschule Hannover, 30625, Hannover, Germany
| | - Jasmin Weisemann
- Institut für Toxikologie, Medizinische Hochschule Hannover, 30625, Hannover, Germany
| | - Lisa Jentsch
- Biological Toxins (ZBS 3), Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, 13353, Germany
| | - Eva-Maria Hansbauer
- Biological Toxins (ZBS 3), Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, 13353, Germany
| | - Christian Müller
- Spiez Laboratory, Federal Office for Civil Protection, Spiez, 3700, Switzerland
| | - Marc A Avondet
- Spiez Laboratory, Federal Office for Civil Protection, Spiez, 3700, Switzerland
| | - Andreas Rummel
- Institut für Toxikologie, Medizinische Hochschule Hannover, 30625, Hannover, Germany
| | - Martin B Dorner
- Biological Toxins (ZBS 3), Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, 13353, Germany
| | - Brigitte G Dorner
- Biological Toxins (ZBS 3), Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, 13353, Germany.
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Eivazzadeh-Keihan R, Pashazadeh-Panahi P, Baradaran B, Guardia MDL, Hejazi M, Sohrabi H, Mokhtarzadeh A, Maleki A. Recent progress in optical and electrochemical biosensors for sensing of Clostridium botulinum neurotoxin. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.03.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Desplantes R, Lévêque C, Muller B, Lotierzo M, Ferracci G, Popoff M, Seagar M, Mamoun R, El Far O. Affinity biosensors using recombinant native membrane proteins displayed on exosomes: application to botulinum neurotoxin B receptor. Sci Rep 2017; 7:1032. [PMID: 28432329 PMCID: PMC5430821 DOI: 10.1038/s41598-017-01198-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 03/27/2017] [Indexed: 12/31/2022] Open
Abstract
The development of simple molecular assays with membrane protein receptors in a native conformation still represents a challenging task. Exosomes are extracellular vesicles which, due to their stability and small size, are suited for analysis in various assay formats. Here, we describe a novel approach to sort recombinant fully native and functional membrane proteins to exosomes using a targeting peptide. Specific binding of high affinity ligands to the potassium channel Kv1.2, the G-protein coupled receptor CXCR4, and the botulinum neurotoxin type B (BoNT/B) receptor, indicated their correct assembly and outside out orientation in exosomes. We then developed, using a label-free optical biosensor, a new method to determine the kinetic constants of BoNT/B holotoxin binding to its receptor synaptotagmin2/GT1b ganglioside (kon = 2.3 ×105 M−1.s−1, koff = 1.3 10−4 s−1), yielding an affinity constant (KD = 0.6 nM) similar to values determined from native tissue. In addition, the recombinant binding domain of BoNT/B, a potential vector for neuronal delivery, bound quasi-irreversibly to synaptotagmin 2/GT1b exosomes. Engineered exosomes provide thus a novel means to study membrane proteins for biotechnology and clinical applications.
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Affiliation(s)
- Richard Desplantes
- INSERM, UMR_S 1072, 13015, Marseille, France.,Aix-Marseille Université, 13015, Marseille, France
| | - Christian Lévêque
- INSERM, UMR_S 1072, 13015, Marseille, France.,Aix-Marseille Université, 13015, Marseille, France
| | - Benjamin Muller
- Ciloa, cc90 - Université Montpellier 2, Place E. Bataillon, 34095, Montpellier Cedex 5, France
| | - Manuela Lotierzo
- Ciloa, cc90 - Université Montpellier 2, Place E. Bataillon, 34095, Montpellier Cedex 5, France
| | - Géraldine Ferracci
- Aix-Marseille Université, 13015, Marseille, France.,CNRS, UMR 7286, Plate-Forme de Recherche en Neurosciences PFRN, 13015, Marseille, France
| | - Michel Popoff
- CNR Anaérobies et botulisme, Unité Bactéries anaérobies et toxines. Institut Pasteur, 28 rue du Dr Roux, 75724, Paris, Cedex 15, France
| | - Michael Seagar
- INSERM, UMR_S 1072, 13015, Marseille, France.,Aix-Marseille Université, 13015, Marseille, France
| | - Robert Mamoun
- Ciloa, cc90 - Université Montpellier 2, Place E. Bataillon, 34095, Montpellier Cedex 5, France
| | - Oussama El Far
- INSERM, UMR_S 1072, 13015, Marseille, France. .,Aix-Marseille Université, 13015, Marseille, France.
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12
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Kumar M, Ghosh S, Nayak S, Das A. Recent advances in biosensor based diagnosis of urinary tract infection. Biosens Bioelectron 2016; 80:497-510. [DOI: 10.1016/j.bios.2016.02.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 02/06/2016] [Accepted: 02/08/2016] [Indexed: 12/16/2022]
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