1
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Uguz I, Ohayon D, Arslan V, Sheelamanthula R, Griggs S, Hama A, Stanton JW, McCulloch I, Inal S, Shepard KL. Flexible switch matrix addressable electrode arrays with organic electrochemical transistor and pn diode technology. Nat Commun 2024; 15:533. [PMID: 38225257 PMCID: PMC10789794 DOI: 10.1038/s41467-023-44024-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 11/28/2023] [Indexed: 01/17/2024] Open
Abstract
Due to their effective ionic-to-electronic signal conversion and mechanical flexibility, organic neural implants hold considerable promise for biocompatible neural interfaces. Current approaches are, however, primarily limited to passive electrodes due to a lack of circuit components to realize complex active circuits at the front-end. Here, we introduce a p-n organic electrochemical diode using complementary p- and n-type conducting polymer films embedded in a 15-μm -diameter vertical stack. Leveraging the efficient motion of encapsulated cations inside this polymer stack and the opposite doping mechanisms of the constituent polymers, we demonstrate high current rectification ratios ([Formula: see text]) and fast switching speeds (230 μs). We integrate p-n organic electrochemical diodes with organic electrochemical transistors in the front-end pixel of a recording array. This configuration facilitates the access of organic electrochemical transistor output currents within a large network operating in the same electrolyte, while minimizing crosstalk from neighboring elements due to minimized reverse-biased leakage. Furthermore, we use these devices to fabricate time-division-multiplexed amplifier arrays. Lastly, we show that, when fabricated in a shank format, this technology enables the multiplexing of amplified local field potentials directly in the active recording pixel (26-μm diameter) in a minimally invasive form factor with shank cross-sectional dimensions of only 50×8 [Formula: see text].
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Affiliation(s)
- Ilke Uguz
- Electrical Engineering Department, Columbia University, New York, 10027, NY, USA.
| | - David Ohayon
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Volkan Arslan
- Electrical Engineering Department, Columbia University, New York, 10027, NY, USA
| | | | - Sophie Griggs
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Adel Hama
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - John William Stanton
- Electrical Engineering Department, Columbia University, New York, 10027, NY, USA
| | - Iain McCulloch
- Physical Science and Engineering Division, KAUST, Thuwal, 23955-6900, Saudi Arabia
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Sahika Inal
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Kenneth L Shepard
- Electrical Engineering Department, Columbia University, New York, 10027, NY, USA
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2
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Guo K, Grünberg R, Ren Y, Chang T, Wustoni S, Strnad O, Koklu A, Díaz-Galicia E, Agudelo JP, Druet V, Castillo TCH, Moser M, Ohayon D, Hama A, Dada A, McCulloch I, Viola I, Arold ST, Inal S. SpyDirect: A Novel Biofunctionalization Method for High Stability and Longevity of Electronic Biosensors. Adv Sci (Weinh) 2023:e2306716. [PMID: 38161228 DOI: 10.1002/advs.202306716] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/21/2023] [Indexed: 01/03/2024]
Abstract
Electronic immunosensors are indispensable tools for diagnostics, particularly in scenarios demanding immediate results. Conventionally, these sensors rely on the chemical immobilization of antibodies onto electrodes. However, globular proteins tend to adsorb and unfold on these surfaces. Therefore, self-assembled monolayers (SAMs) of thiolated alkyl molecules are commonly used for indirect gold-antibody coupling. Here, a limitation associated with SAMs is revealed, wherein they curtail the longevity of protein sensors, particularly when integrated into the state-of-the-art transducer of organic bioelectronics-the organic electrochemical transistor. The SpyDirect method is introduced, generating an ultrahigh-density array of oriented nanobody receptors stably linked to the gold electrode without any SAMs. It is accomplished by directly coupling cysteine-terminated and orientation-optimized spyTag peptides, onto which nanobody-spyCatcher fusion proteins are autocatalytically attached, yielding a dense and uniform biorecognition layer. The structure-guided design optimizes the conformation and packing of flexibly tethered nanobodies. This biolayer enhances shelf-life and reduces background noise in various complex media. SpyDirect functionalization is faster and easier than SAM-based methods and does not necessitate organic solvents, rendering the sensors eco-friendly, accessible, and amenable to scalability. SpyDirect represents a broadly applicable biofunctionalization method for enhancing the cost-effectiveness, sustainability, and longevity of electronic biosensors, all without compromising sensitivity.
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Affiliation(s)
- Keying Guo
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Raik Grünberg
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yuxiang Ren
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Tianrui Chang
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Shofarul Wustoni
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Ondrej Strnad
- Computer, Electrical and Mathematical Science and Engineering, KAUST, Thuwal, 23955-6900, Saudi Arabia
| | - Anil Koklu
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Escarlet Díaz-Galicia
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Jessica Parrado Agudelo
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Victor Druet
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Tania Cecilia Hidalgo Castillo
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Maximilian Moser
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - David Ohayon
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Adel Hama
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Ashraf Dada
- King Faisal Specialist Hospital & Research Centre (KFSH-RC), Jeddah, 21499, Saudi Arabia
| | - Iain McCulloch
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Ivan Viola
- Computer, Electrical and Mathematical Science and Engineering, KAUST, Thuwal, 23955-6900, Saudi Arabia
| | - Stefan T Arold
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Centre de Biologie Structurale (CBS), INSERM, CNRS, Université de Montpellier, Montpellier, F-34090, France
| | - Sahika Inal
- Computational Bioscience Research Center (CBRC), Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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3
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Savva A, Hama A, Herrera‐López G, Schmidt T, Migliaccio L, Steiner N, Kawan M, Fiumelli H, Magistretti PJ, McCulloch I, Baran D, Gasparini N, Schindl R, Głowacki ED, Inal S. Photo-Chemical Stimulation of Neurons with Organic Semiconductors. Adv Sci (Weinh) 2023; 10:e2300473. [PMID: 37661572 PMCID: PMC10625067 DOI: 10.1002/advs.202300473] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 07/17/2023] [Indexed: 09/05/2023]
Abstract
Recent advances in light-responsive materials enabled the development of devices that can wirelessly activate tissue with light. Here it is shown that solution-processed organic heterojunctions can stimulate the activity of primary neurons at low intensities of light via photochemical reactions. The p-type semiconducting polymer PDCBT and the n-type semiconducting small molecule ITIC (a non-fullerene acceptor) are coated on glass supports, forming a p-n junction with high photosensitivity. Patch clamp measurements show that low-intensity white light is converted into a cue that triggers action potentials in primary cortical neurons. The study shows that neat organic semiconducting p-n bilayers can exchange photogenerated charges with oxygen and other chemical compounds in cell culture conditions. Through several controlled experimental conditions, photo-capacitive, photo-thermal, and direct hydrogen peroxide effects on neural function are excluded, with photochemical delivery being the possible mechanism. The profound advantages of low-intensity photo-chemical intervention with neuron electrophysiology pave the way for developing wireless light-based therapy based on emerging organic semiconductors.
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Affiliation(s)
- Achilleas Savva
- Biological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
- Department of Chemical Engineering and BiotechnologyUniversity of CambridgeCambridgeCB30ASUK
| | - Adel Hama
- Biological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Gabriel Herrera‐López
- Biological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Tony Schmidt
- Gottfried Schatz Research CenterChair of BiophysicsMedical University of GrazNeue Stiftingtalstraße 6Graz8010Austria
| | - Ludovico Migliaccio
- Bioelectronics Materials and Devices LaboratoryCentral European Institute of TechnologyBrno University of TechnologyPurkyňova 123Brno61200Czech Republic
| | - Nadia Steiner
- Biological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Malak Kawan
- Biological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Hubert Fiumelli
- Biological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Pierre J. Magistretti
- Biological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Iain McCulloch
- Physical Science and Engineering (PSE)KAUST Solar Center (KSC)King Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Derya Baran
- Physical Science and Engineering (PSE)KAUST Solar Center (KSC)King Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Nicola Gasparini
- Department of Chemistry and Centre for Processable ElectronicsImperial College LondonLondonW12 0BZUK
| | - Rainer Schindl
- Gottfried Schatz Research CenterChair of BiophysicsMedical University of GrazNeue Stiftingtalstraße 6Graz8010Austria
| | - Eric D. Głowacki
- Bioelectronics Materials and Devices LaboratoryCentral European Institute of TechnologyBrno University of TechnologyPurkyňova 123Brno61200Czech Republic
| | - Sahika Inal
- Biological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
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4
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Traberg WC, Uribe J, Druet V, Hama A, Moysidou CM, Huerta M, McCoy R, Hayward D, Savva A, Genovese AMR, Pavagada S, Lu Z, Koklu A, Pappa AM, Fitzgerald R, Inal S, Daniel S, Owens RM. Organic Electronic Platform for Real-Time Phenotypic Screening of Extracellular-Vesicle-Driven Breast Cancer Metastasis. Adv Healthc Mater 2023; 12:e2301194. [PMID: 37171457 DOI: 10.1002/adhm.202301194] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 04/21/2023] [Indexed: 05/13/2023]
Abstract
Tumor-derived extracellular vesicles (TEVs) induce the epithelial-to-mesenchymal transition (EMT) in nonmalignant cells to promote invasion and cancer metastasis, representing a novel therapeutic target in a field severely lacking in efficacious antimetastasis treatments. However, scalable technologies that allow continuous, multiparametric monitoring for identifying metastasis inhibitors are absent. Here, the development of a functional phenotypic screening platform based on organic electrochemical transistors (OECTs) for real-time, noninvasive monitoring of TEV-induced EMT and screening of antimetastatic drugs is reported. TEVs derived from the triple-negative breast cancer cell line MDA-MB-231 induce EMT in nonmalignant breast epithelial cells (MCF10A) over a nine-day period, recapitulating a model of invasive ductal carcinoma metastasis. Immunoblot analysis and immunofluorescence imaging confirm the EMT status of TEV-treated cells, while dual optical and electrical readouts of cell phenotype are obtained using OECTs. Further, heparin, a competitive inhibitor of cell surface receptors, is identified as an effective blocker of TEV-induced EMT. Together, these results demonstrate the utility of the platform for TEV-targeted drug discovery, allowing for facile modeling of the transient drug response using electrical measurements, and provide proof of concept that inhibitors of TEV function have potential as antimetastatic drug candidates.
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Affiliation(s)
- Walther C Traberg
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
| | - Johana Uribe
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Olin Hall, Ithaca, NY, 14853, USA
| | - Victor Druet
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 3955, Kingdom of Saudi Arabia
| | - Adel Hama
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 3955, Kingdom of Saudi Arabia
| | - Chrysanthi-Maria Moysidou
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
| | - Miriam Huerta
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Olin Hall, Ithaca, NY, 14853, USA
| | - Reece McCoy
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
| | - Daniel Hayward
- Early Cancer Institute, University of Cambridge, Hutchison Research Centre, Cambridge, CB2 0XZ, UK
| | - Achilleas Savva
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
| | - Amaury M R Genovese
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
| | - Suraj Pavagada
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
- Early Cancer Institute, University of Cambridge, Hutchison Research Centre, Cambridge, CB2 0XZ, UK
| | - Zixuan Lu
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
| | - Anil Koklu
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 3955, Kingdom of Saudi Arabia
| | - Anna-Maria Pappa
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
- Healthcare Innovation Engineering Center, Khalifa University, Abu Dhabi, PO Box 127788, United Arab Emirates
- Department of Biomedical Engineering, Khalifa University of Science and Technology, Abu Dhabi, PO Box 127788, United Arab Emirates
| | - Rebecca Fitzgerald
- Early Cancer Institute, University of Cambridge, Hutchison Research Centre, Cambridge, CB2 0XZ, UK
| | - Sahika Inal
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 3955, Kingdom of Saudi Arabia
| | - Susan Daniel
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Olin Hall, Ithaca, NY, 14853, USA
| | - Róisín M Owens
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
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5
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Ohayon D, Renn D, Wustoni S, Guo K, Druet V, Hama A, Chen X, Maria IP, Singh S, Griggs S, Schroeder BC, Rueping M, McCulloch I, Inal S. Interactions of Catalytic Enzymes with n-Type Polymers for High-Performance Metabolite Sensors. ACS Appl Mater Interfaces 2023; 15:9726-9739. [PMID: 36749895 PMCID: PMC9951220 DOI: 10.1021/acsami.2c20502] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
The tight regulation of the glucose concentration in the body is crucial for balanced physiological function. We developed an electrochemical transistor comprising an n-type conjugated polymer film in contact with a catalytic enzyme for sensitive and selective glucose detection in bodily fluids. Despite the promise of these sensors, the property of the polymer that led to such high performance has remained unknown, with charge transport being the only characteristic under focus. Here, we studied the impact of the polymer chemical structure on film surface properties and enzyme adsorption behavior using a combination of physiochemical characterization methods and correlated our findings with the resulting sensor performance. We developed five n-type polymers bearing the same backbone with side chains differing in polarity and charge. We found that the nature of the side chains modulated the film surface properties, dictating the extent of interactions between the enzyme and the polymer film. Quartz crystal microbalance with dissipation monitoring studies showed that hydrophobic surfaces retained more enzymes in a densely packed arrangement, while hydrophilic surfaces captured fewer enzymes in a flattened conformation. X-ray photoelectron spectroscopy analysis of the surfaces revealed strong interactions of the enzyme with the glycolated side chains of the polymers, which improved for linear side chains compared to those for branched ones. We probed the alterations in the enzyme structure upon adsorption using circular dichroism, which suggested protein denaturation on hydrophobic surfaces. Our study concludes that a negatively charged, smooth, and hydrophilic film surface provides the best environment for enzyme adsorption with desired mass and conformation, maximizing the sensor performance. This knowledge will guide synthetic work aiming to establish close interactions between proteins and electronic materials, which is crucial for developing high-performance enzymatic metabolite biosensors and biocatalytic charge-conversion devices.
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Affiliation(s)
- David Ohayon
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Dominik Renn
- Catalysis
Center, King Abdullah University of Science
and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Shofarul Wustoni
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Keying Guo
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Victor Druet
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Adel Hama
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xingxing Chen
- Physical
Science and Engineering Division, KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Iuliana Petruta Maria
- Department
of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, U.K.
| | - Saumya Singh
- Department
of Chemistry, University of College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Sophie Griggs
- Department
of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, U.K.
| | - Bob C. Schroeder
- Department
of Chemistry, University of College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Magnus Rueping
- Catalysis
Center, King Abdullah University of Science
and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Iain McCulloch
- Physical
Science and Engineering Division, KAUST, Thuwal 23955-6900, Saudi Arabia
- Department
of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, U.K.
| | - Sahika Inal
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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6
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Koklu A, Wustoni S, Guo K, Silva R, Salvigni L, Hama A, Diaz-Galicia E, Moser M, Marks A, McCulloch I, Grünberg R, Arold ST, Inal S. Convection Driven Ultrarapid Protein Detection via Nanobody-Functionalized Organic Electrochemical Transistors. Adv Mater 2022; 34:e2202972. [PMID: 35772173 DOI: 10.1002/adma.202202972] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/15/2022] [Indexed: 06/15/2023]
Abstract
Conventional biosensors rely on the diffusion-dominated transport of the target analyte to the sensor surface. Consequently, they require an incubation step that may take several hours to allow for the capture of analyte molecules by sensor biorecognition sites. This incubation step is a primary cause of long sample-to-result times. Here, alternating current electrothermal flow (ACET) is integrated in an organic electrochemical transistor (OECT)-based sensor to accelerate the device operation. ACET is applied to the gate electrode functionalized with nanobody-SpyCatcher fusion proteins. Using the SARS-CoV-2 spike protein in human saliva as an example target, it is shown that ACET enables protein recognition within only 2 min of sample exposure, supporting its use in clinical practice. The ACET integrated sensor exhibits better selectivity, higher sensitivity, and lower limit of detection than the equivalent sensor with diffusion-dominated operation. The performance of ACET integrated sensors is compared with two types of organic semiconductors in the channel and grounds for device-to-device variations are investigated. The results provide guidelines for the channel material choice in OECT-based biochemical sensors, and demonstrate that ACET integration substantially decreases the detection speed while increasing the sensitivity and selectivity of transistor-based sensors.
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Affiliation(s)
- Anil Koklu
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
| | - Shofarul Wustoni
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
| | - Keying Guo
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
| | - Raphaela Silva
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
| | - Luca Salvigni
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
| | - Adel Hama
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
| | - Escarlet Diaz-Galicia
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
| | - Maximilian Moser
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Adam Marks
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Iain McCulloch
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Raik Grünberg
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
| | - Stefan T Arold
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
- Centre de Biologie Structurale (CBS), INSERM, CNRS, Université de Montpellier, Montpellier, F-34090, France
| | - Sahika Inal
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Biological and Environmental Science and Engineering Division, Computational Bioscience Research Center (CBRC), KAUST, Thuwal, Saudi Arabia
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7
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Strakosas X, Donahue MJ, Hama A, Braendlein M, Huerta M, Simon DT, Berggren M, Malliaras GG, Owens RM. Biostack: Nontoxic Metabolite Detection from Live Tissue. Adv Sci (Weinh) 2022; 9:e2101711. [PMID: 34741447 PMCID: PMC8805579 DOI: 10.1002/advs.202101711] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 09/17/2021] [Indexed: 05/29/2023]
Abstract
There is increasing demand for direct in situ metabolite monitoring from cell cultures and in vivo using implantable devices. Electrochemical biosensors are commonly preferred due to their low-cost, high sensitivity, and low complexity. Metabolite detection, however, in cultured cells or sensitive tissue is rarely shown. Commonly, glucose sensing occurs indirectly by measuring the concentration of hydrogen peroxide, which is a by-product of the conversion of glucose by glucose oxidase. However, continuous production of hydrogen peroxide in cell media with high glucose is toxic to adjacent cells or tissue. This challenge is overcome through a novel, stacked enzyme configuration. A primary enzyme is used to provide analyte sensitivity, along with a secondary enzyme which converts H2 O2 back to O2 . The secondary enzyme is functionalized as the outermost layer of the device. Thus, production of H2 O2 remains local to the sensor and its concentration in the extracellular environment does not increase. This "biostack" is integrated with organic electrochemical transistors to demonstrate sensors that monitor glucose concentration in cell cultures in situ. The "biostack" renders the sensors nontoxic for cells and provides highly sensitive and stable detection of metabolites.
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Affiliation(s)
- Xenofon Strakosas
- Laboratory of Organic ElectronicsDepartment of Science and TechnologyLinköping UniversityNorrköping601 74Sweden
| | - Mary J. Donahue
- Laboratory of Organic ElectronicsDepartment of Science and TechnologyLinköping UniversityNorrköping601 74Sweden
| | - Adel Hama
- King Abdullah University of Science and TechnologyKAUSTThuwal23955‐6900Saudi Arabia
| | | | - Miriam Huerta
- Robert F. Smith School of Chemical and Biomolecular EngineeringCornell UniversityIthacaNY14853USA
| | - Daniel T. Simon
- Laboratory of Organic ElectronicsDepartment of Science and TechnologyLinköping UniversityNorrköping601 74Sweden
| | - Magnus Berggren
- Laboratory of Organic ElectronicsDepartment of Science and TechnologyLinköping UniversityNorrköping601 74Sweden
| | | | - Roisin M. Owens
- Department of Chemical Engineering and BiotechnologyUniversity of CambridgeCambridgeUKUSA
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8
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Uribe J, Traberg WC, Hama A, Druet V, Mohamed Z, Ooi A, Pappa AM, Huerta M, Inal S, Owens RM, Daniel S. Dual Mode Sensing of Binding and Blocking of Cancer Exosomes to Biomimetic Human Primary Stem Cell Surfaces. ACS Biomater Sci Eng 2021; 7:5585-5597. [PMID: 34802228 DOI: 10.1021/acsbiomaterials.1c01056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cancer-derived exosomes (cEXOs) facilitate transfer of information between tumor and human primary stromal cells, favoring cancer progression. Although the mechanisms used during this information exchange are still not completely understood, it is known that binding is the initial contact established between cEXOs and cells. Hence, studying binding and finding strategies to block it are of great therapeutic value. However, such studies are challenging for a variety of reasons, including the need for human primary cell culture, the difficulty in decoupling and isolating binding from internalization and cargo delivery, and the lack of techniques to detect these specific interactions. In this work, we created a supported biomimetic stem cell membrane incorporating membrane components from human primary adipose-derived stem cells (ADSCs). We formed the supported membrane on glass and on multielectrode arrays to offer the dual option of optical or electrical detection of cEXO binding to the membrane surface. Using our platform, we show that cEXOs bind to the stem cell membrane and that binding is blocked when an antibody to integrin β1, a component of ADSC surface, is exposed to the membrane surface prior to cEXOs. To test the biological outcome of blocking this interaction, we first confirm that adding cEXOs to cultured ADSCs leads to the upregulation of vascular endothelial growth factor, a measure of proangiogenic activity. Next, when ADSCs are first blocked with anti-integrin β1 and then exposed to cEXOs, the upregulation of proangiogenic activity and cell proliferation are significantly reduced. This biomimetic membrane platform is the first cell-free label-free in vitro platform for the recapitulation and study of cEXO binding to human primary stem cells with potential for therapeutic molecule screening as it is compatible with scale-up and multiplexing.
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Affiliation(s)
- Johana Uribe
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853-0001, United States
| | - Walther C Traberg
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
| | - Adel Hama
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 3955, Kingdom of Saudi Arabia
| | - Victor Druet
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 3955, Kingdom of Saudi Arabia
| | - Zeinab Mohamed
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853-0001, United States
| | - Amanda Ooi
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 3955, Kingdom of Saudi Arabia
| | - Anna-Maria Pappa
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom.,Department of Biomedical Engineering, Khalifa University of Science and Technology, Abu Dhabi 127788, United Arab Emirates
| | - Miriam Huerta
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853-5201, United States
| | - Sahika Inal
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 3955, Kingdom of Saudi Arabia
| | - Róisín M Owens
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
| | - Susan Daniel
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853-0001, United States.,School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853-5201, United States
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9
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Lee KH, Zhang YZ, Kim H, Lei Y, Hong S, Wustoni S, Hama A, Inal S, Alshareef HN. Muscle Fatigue Sensor Based on Ti 3 C 2 T x MXene Hydrogel. Small Methods 2021; 5:e2100819. [PMID: 34928032 DOI: 10.1002/smtd.202100819] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/23/2021] [Indexed: 05/20/2023]
Abstract
MXene-based hydrogels have received significant attention due to several promising properties that distinguish them from conventional hydrogels. In this study, it is shown that both strain and pH level can be exploited to tune the electronic and ionic transport in MXene-based hydrogel (M-hydrogel), which consists of MXene (Ti3 C2 Tx )-polyacrylic acid/polyvinyl alcohol hydrogel. In particular, the strain applied to the M-hydrogel changes MXene sheet orientation which leads to modulation of ionic transport within the M-hydrogel, due to strain-induced orientation of the surface charge-guided ionic pathway. Simultaneously, the reorientation of MXene sheets under the axial strain increases the electronic resistance of the M-hydrogel due to the loss of the percolative network of conductive MXene sheets during the stretching process. The iontronic characteristics of the M-hydrogel can thus be tuned by strain and pH, which allows using the M-hydrogel as a muscle fatigue sensor during exercise. A fully functional M-hydrogel is developed for real-time measurement of muscle fatigue during exercise and coupled it to a smartphone to provide a portable or wearable digital readout. This concept can be extended to other fields that require accurate analysis of constantly changing physical and chemical conditions, such as physiological changes in the human body.
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Affiliation(s)
- Kang Hyuck Lee
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yi-Zhou Zhang
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Hyunho Kim
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yongjiu Lei
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Seunghyun Hong
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Shofarul Wustoni
- Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Adel Hama
- Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Sahika Inal
- Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Husam N Alshareef
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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10
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Mandelli JS, Koepp J, Hama A, Sanaur S, Rae GA, Rambo CR. Cell viability and cytotoxicity of inkjet-printed flexible organic electrodes on parylene C. Biomed Microdevices 2021; 23:2. [PMID: 33386434 DOI: 10.1007/s10544-020-00542-z] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2020] [Indexed: 12/21/2022]
Abstract
This study reports on the fabrication of biocompatible organic devices by means of inkjet printing with a novel combination of materials. The devices were fabricated on Parylene C (PaC), a biocompatible and flexible polymer substrate. The contact tracks were inkjet-printed using a silver nanoparticle ink, while the active sites were inkjet-printed using a poly (3,4ethylenedioxythiophene)/polystyrene sulfonate (PEDOT:PSS) solution. To insulate the final device, a polyimide ink was used to print a thick film, leaving small open windows upon the active sites. Electrical characterization of the final device revealed conductivities in the order of 103 and 102 S.cm-1 for Ag and PEDOT based inks, respectively. Cell adhesion assays performed with PC-12 cells after 96 h of culture, and B16F10 cells after 24 h of culture, demonstrated that the cells adhered on top of the inks and cell differentiation occurred, which indicates Polyimide and PEDOT:PSS inks are non-toxic to these cells. The results indicate that PaC, along with its surface-treated variants, is a potentially useful material for fabricating cell-based microdevices.
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Affiliation(s)
- Jaqueline S Mandelli
- Department of Electrical and Electronic Engineering, Graduate Program on Materials Science and Engineering, Federal University of Santa Catarina, Florianópolis, 88040-900, Brazil
| | - Janice Koepp
- Department of Pharmacology, Graduate Program on Pharmacology, Federal University of Santa Catarina, Florianópolis, 88040-900, Brazil.,Biocelltis Biotechnology SA, Rod. SC 401 km 05, 5326, 88032-005, Florianópolis, Brazil
| | - Adel Hama
- Department of Bioelectronics, IMT Mines Saint-Etienne, Provence Microelectronics Center, 880 avenue de Mimet, 13541, Gardanne, France
| | - Sébastien Sanaur
- Department of Bioelectronics, IMT Mines Saint-Etienne, Provence Microelectronics Center, 880 avenue de Mimet, 13541, Gardanne, France.,Department of Flexible Electronics, IMT Mines Saint-Etienne, Provence Microelectronics Center, 880 avenue de Mimet, 13541, Gardanne, France
| | - Giles A Rae
- Department of Pharmacology, Graduate Program on Pharmacology, Federal University of Santa Catarina, Florianópolis, 88040-900, Brazil
| | - Carlos R Rambo
- Department of Electrical and Electronic Engineering, Graduate Program on Materials Science and Engineering, Federal University of Santa Catarina, Florianópolis, 88040-900, Brazil.
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11
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Nikiforidis G, Wustoni S, Routier C, Hama A, Koklu A, Saleh A, Steiner N, Druet V, Fiumelli H, Inal S. Benchmarking the Performance of Electropolymerized Poly(3,4-ethylenedioxythiophene) Electrodes for Neural Interfacing. Macromol Biosci 2020; 20:e2000215. [PMID: 32820588 DOI: 10.1002/mabi.202000215] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 06/22/2020] [Revised: 08/03/2020] [Indexed: 11/11/2022]
Abstract
The development of electronics adept at interfacing with the nervous system is an ever-growing effort, leading to discoveries in fundamental neuroscience applied in clinical setting. Highly capacitive and electrochemically stable electronic materials are paramount for these advances. A systematic study is presented where copolymers based on 3,4-ethylenedioxythiophene (EDOT) and its hydroxyl-terminated counterpart (EDOTOH) are electropolymerized in an aqueous solution in the presence of various counter anions and additives. Amongst the conducting materials developed, the copolymer p(EDOT-ran-EDOTOH) doped with perchlorate in the presence of ethylene glycol shows high specific capacitance (105 F g-1 ), and capacitance retention (85%) over 1000 galvanostatic charge-discharge cycles. A microelectrode array-based on this material is fabricated and primary cortical neurons are cultured therein for several days. The microelectrodes electrically stimulate targeted neuronal networks and record their activity with high signal-to-noise ratio. The stability of charge injection capacity of the material is validated via long-term pulsing experiments. While providing insights on the effect of additives and dopants on the electrochemical performance and operational stability of electropolymerized conducting polymers, this study highlights the importance of high capacitance accompanied with stability to achieve high performance electrodes for biological interfacing.
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Affiliation(s)
- Georgios Nikiforidis
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Shofarul Wustoni
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Cyril Routier
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Adel Hama
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Anil Koklu
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Abdulelah Saleh
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | | | - Victor Druet
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | | | - Sahika Inal
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
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12
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Zhang Y, Savva A, Wustoni S, Hama A, Maria IP, Giovannitti A, McCulloch I, Inal S. Visualizing the Solid–Liquid Interface of Conjugated Copolymer Films Using Fluorescent Liposomes. ACS Appl Bio Mater 2018; 1:1348-1354. [DOI: 10.1021/acsabm.8b00323] [Citation(s) in RCA: 9] [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: 11/30/2022]
Affiliation(s)
| | | | | | | | - Iuliana P. Maria
- Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K
| | - Alexander Giovannitti
- Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K
| | - Iain McCulloch
- Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K
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13
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ElMahmoudy M, Curto VF, Ferro M, Hama A, Malliaras GG, O'Connor RP, Sanaur S. Electrically controlled cellular migration on a periodically micropatterned PEDOT:PSS conducting polymer platform. J Appl Polym Sci 2018. [DOI: 10.1002/app.47029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- M. ElMahmoudy
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - V. F. Curto
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - M. Ferro
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - A. Hama
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - G. G. Malliaras
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - R. P. O'Connor
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Bioelectronics; F-13541 Gardanne France
| | - S. Sanaur
- IMT Mines Saint-Etienne, Provence Microelectronics Center, Department of Flexible Electronics; F-13541 Gardanne France
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14
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Curto VF, Marchiori B, Hama A, Pappa AM, Ferro MP, Braendlein M, Rivnay J, Fiocchi M, Malliaras GG, Ramuz M, Owens RM. Organic transistor platform with integrated microfluidics for in-line multi-parametric in vitro cell monitoring. Microsyst Nanoeng 2017; 3:17028. [PMID: 31057869 PMCID: PMC6445009 DOI: 10.1038/micronano.2017.28] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 03/31/2017] [Accepted: 04/10/2017] [Indexed: 05/02/2023]
Abstract
Future drug discovery and toxicology testing could benefit significantly from more predictive and multi-parametric readouts from in vitro models. Despite the recent advances in the field of microfluidics, and more recently organ-on-a-chip technology, there is still a high demand for real-time monitoring systems that can be readily embedded with microfluidics. In addition, multi-parametric monitoring is essential to improve the predictive quality of the data used to inform clinical studies that follow. Here we present a microfluidic platform integrated with in-line electronic sensors based on the organic electrochemical transistor. Our goals are two-fold, first to generate a platform to host cells in a more physiologically relevant environment (using physiologically relevant fluid shear stress (FSS)) and second to show efficient integration of multiple different methods for assessing cell morphology, differentiation, and integrity. These include optical imaging, impedance monitoring, metabolite sensing, and a wound-healing assay. We illustrate the versatility of this multi-parametric monitoring in giving us increased confidence to validate the improved differentiation of cells toward a physiological profile under FSS, thus yielding more accurate data when used to assess the effect of drugs or toxins. Overall, this platform will enable high-content screening for in vitro drug discovery and toxicology testing and bridges the existing gap in the integration of in-line sensors in microfluidic devices.
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Affiliation(s)
- Vincenzo F. Curto
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Bastien Marchiori
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
- Flexible Electronics Department, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Adel Hama
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Anna-Maria Pappa
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Magali P. Ferro
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Marcel Braendlein
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Jonathan Rivnay
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Michel Fiocchi
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - George G. Malliaras
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Marc Ramuz
- Flexible Electronics Department, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Róisín M. Owens
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
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15
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Terciolo C, Dobric A, Ouaissi M, Siret C, Breuzard G, Silvy F, Marchiori B, Germain S, Bonier R, Hama A, Owens R, Lombardo D, Rigot V, André F. Saccharomyces boulardii CNCM I-745 Restores intestinal Barrier Integrity by Regulation of E-cadherin Recycling. J Crohns Colitis 2017; 11:999-1010. [PMID: 28333335 DOI: 10.1093/ecco-jcc/jjx030] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 02/21/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Alteration in intestinal permeability is the main factor underlying the pathogenesis of many diseases affecting the gut, such as inflammatory bowel disease [IBD]. Characterization of molecules targeting the restoration of intestinal barrier integrity is therefore vital for the development of alternative therapies. The yeast Saccharomyces boulardii CNCM I-745 [Sb], used to prevent and treat antibiotic-associated infectious and functional diarrhea, may have a beneficial effect in the treatment of IBD. METHODS We analyzed the impact of Sb supernatant on tissue integrity and components of adherens junctions using cultured explants of colon from both IBD and healthy patients. To evaluate the pathways by which Sb regulates the expression of E-cadherin at the cell surface, we developed in vitro assays using human colonic cell lines, including cell aggregation, a calcium switch assay, real-time measurement of transepithelial electrical resistance [TEER] and pulse-chase experiments. RESULTS We showed that Sb supernatant treatment of colonic explants protects the epithelial morphology and maintains E-cadherin expression at the cell surface. In vitro experiments revealed that Sb supernatant enhances E-cadherin delivery to the cell surface by re-routing endocytosed E-cadherin back to the plasma membrane. This process, involving Rab11A-dependent recycling endosome, leads to restoration of enterocyte adherens junctions, in addition to the overall restoration and strengthening of intestinal barrier function. CONCLUSION These findings open new possibilities of discovering novel options for prevention and therapy of diseases that affect intestinal permeability.
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Affiliation(s)
- Chloé Terciolo
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Aurélie Dobric
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Mehdi Ouaissi
- Aix-Marseille Université, Inserm, AP-HM, UMR 911, CRO2, Marseille, France
| | - Carole Siret
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Gilles Breuzard
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Françoise Silvy
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | | | | | - Renaté Bonier
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Adel Hama
- Ecole des Mines de Saint Etienne, BEL, Gardanne, France
| | - Roisin Owens
- Ecole des Mines de Saint Etienne, BEL, Gardanne, France
| | | | - Véronique Rigot
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Frédéric André
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
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16
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Inal S, Hama A, Ferro M, Pitsalidis C, Oziat J, Iandolo D, Pappa AM, Hadida M, Huerta M, Marchat D, Mailley P, Owens RM. 3D Cell Culture: Conducting Polymer Scaffolds for Hosting and Monitoring 3D Cell Culture (Adv. Biosys. 6/2017). ACTA ACUST UNITED AC 2017. [DOI: 10.1002/adbi.201770038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sahika Inal
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
- Biological and Environmental Science and Engineering; King Abdullah University of Science and Technology (KAUST); Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Adel Hama
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Magali Ferro
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Charalampos Pitsalidis
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Julie Oziat
- CEA; LETI; MINATEC Campus; 38054 Grenoble France
| | - Donata Iandolo
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Anna-Maria Pappa
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Mikhael Hadida
- Laboratoire Sainbiose; Ecole Nationale Supérieure des Mines; CIS-EMSE; St. Etienne 42023 France
| | - Miriam Huerta
- Department of Infectomics and Molecular Pathogenesis; Cinvestav 14-740, 070000 Mexico
| | - David Marchat
- Laboratoire Sainbiose; Ecole Nationale Supérieure des Mines; CIS-EMSE; St. Etienne 42023 France
| | | | - Róisín M. Owens
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
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17
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Inal S, Hama A, Ferro M, Pitsalidis C, Oziat J, Iandolo D, Pappa AM, Hadida M, Huerta M, Marchat D, Mailley P, Owens RM. Conducting Polymer Scaffolds for Hosting and Monitoring 3D Cell Culture. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/adbi.201700052] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sahika Inal
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
- Biological and Environmental Science and Engineering; King Abdullah University of Science and Technology (KAUST); Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Adel Hama
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Magali Ferro
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Charalampos Pitsalidis
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Julie Oziat
- CEA; LETI; MINATEC Campus; 38054 Grenoble France
| | - Donata Iandolo
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Anna-Maria Pappa
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
| | - Mikhael Hadida
- Laboratoire Sainbiose; Ecole Nationale Supérieure des Mines; CIS-EMSE; St. Etienne 42023 France
| | - Miriam Huerta
- Department of Infectomics and Molecular Pathogenesis; Cinvestav 14-740, 070000 Mexico
| | - David Marchat
- Laboratoire Sainbiose; Ecole Nationale Supérieure des Mines; CIS-EMSE; St. Etienne 42023 France
| | | | - Róisín M. Owens
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; Gardanne 13541 France
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18
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Pappa AM, Inal S, Roy K, Zhang Y, Pitsalidis C, Hama A, Pas J, Malliaras GG, Owens RM. Polyelectrolyte Layer-by-Layer Assembly on Organic Electrochemical Transistors. ACS Appl Mater Interfaces 2017; 9:10427-10434. [PMID: 28263552 DOI: 10.1021/acsami.6b15522] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Oppositely charged polyelectrolyte multilayers (PEMs) were built up in a layer-by-layer (LbL) assembly on top of the conducting polymer channel of an organic electrochemical transistor (OECT), aiming to combine the advantages of well-established PEMs with a high performance electronic transducer. The multilayered film is a model system to investigate the impact of biofunctionalization on the operation of OECTs comprising a poly(3,4-ethylenedioxythiophene) polystyrenesulfonate (PEDOT:PSS) film as the electrically active layer. Understanding the mechanism of ion injection into the channel that is in direct contact with charged polymer films provides useful insights for novel biosensing applications such as nucleic acid sensing. Moreover, LbL is demonstrated to be a versatile electrode modification tool enabling tailored surface features in terms of thickness, softness, roughness, and charge. LbL assemblies built up on top of conducting polymers will aid the design of new bioelectronic platforms for drug delivery, tissue engineering, and medical diagnostics.
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Affiliation(s)
- Anna-Maria Pappa
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC , 13541 Gardanne, France
| | - Sahika Inal
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC , 13541 Gardanne, France
- Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Kirsty Roy
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC , 13541 Gardanne, France
| | - Yi Zhang
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC , 13541 Gardanne, France
| | - Charalampos Pitsalidis
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC , 13541 Gardanne, France
| | - Adel Hama
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC , 13541 Gardanne, France
| | - Jolien Pas
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC , 13541 Gardanne, France
| | - George G Malliaras
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC , 13541 Gardanne, France
| | - Roisin M Owens
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC , 13541 Gardanne, France
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Suzuki K, Suzuki Y, Hama A, Muramatsu H, Nakatochi M, Gunji M, Ichikawa D, Hamada M, Taniguchi R, Kataoka S, Murakami N, Kojima D, Sekiya Y, Nishikawa E, Kawashima N, Narita A, Nishio N, Nakazawa Y, Iwafuchi H, Watanabe KI, Takahashi Y, Ito M, Kojima S, Kato S, Okuno Y. Recurrent MYB rearrangement in blastic plasmacytoid dendritic cell neoplasm. Leukemia 2017; 31:1629-1633. [PMID: 28344318 DOI: 10.1038/leu.2017.101] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- K Suzuki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Suzuki
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya, Japan
| | - A Hama
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - H Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Nakatochi
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - M Gunji
- Department of Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - D Ichikawa
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Hamada
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - R Taniguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kataoka
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Murakami
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - D Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Sekiya
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - E Nishikawa
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Kawashima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - A Narita
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Nishio
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Y Nakazawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - H Iwafuchi
- Department of Pathology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - K-I Watanabe
- Department of Hematology and Oncology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Y Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Ito
- Department of Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - S Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kato
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Y Okuno
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
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Uguz I, Ganji M, Hama A, Tanaka A, Inal S, Youssef A, Owens RM, Quilichini PP, Ghestem A, Bernard C, Dayeh SA, Malliaras GG. Autoclave Sterilization of PEDOT:PSS Electrophysiology Devices. Adv Healthc Mater 2016; 5:3094-3098. [PMID: 27885829 DOI: 10.1002/adhm.201600870] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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: 08/04/2016] [Indexed: 11/06/2022]
Abstract
Autoclaving, the most widely available sterilization method, is applied to poly(3,4-ethylenedioxythiophene) doped with polystyrene sulfonate (PEDOT:PSS) electrophysiology devices. The process does not harm morphology or electrical properties, while it effectively kills E. coli intentionally cultured on the devices. This finding paves the way to widespread introduction of PEDOT:PSS electrophysiology devices to the clinic.
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Affiliation(s)
- Ilke Uguz
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE, MOC; 13541 Gardanne France
| | - Mehran Ganji
- Department of Electrical and Computer Engineering; Jacobs School of Engineering; University of California, San Diego; 9500 Gilman Drive La Jolla CA 92093-0407 USA
| | - Adel Hama
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE, MOC; 13541 Gardanne France
| | - Atsunori Tanaka
- Department of Electrical and Computer Engineering; Jacobs School of Engineering; University of California, San Diego; 9500 Gilman Drive La Jolla CA 92093-0407 USA
| | - Sahika Inal
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE, MOC; 13541 Gardanne France
| | - Ahmed Youssef
- Department of Electrical and Computer Engineering; Jacobs School of Engineering; University of California, San Diego; 9500 Gilman Drive La Jolla CA 92093-0407 USA
| | - Roisin M. Owens
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE, MOC; 13541 Gardanne France
| | - Pascale P. Quilichini
- Inserm U1106; Institut de Neurosciences des Systèmes; Aix Marseille University; 13005 Marseille France
| | - Antoine Ghestem
- Inserm U1106; Institut de Neurosciences des Systèmes; Aix Marseille University; 13005 Marseille France
| | - Christophe Bernard
- Inserm U1106; Institut de Neurosciences des Systèmes; Aix Marseille University; 13005 Marseille France
| | - Shadi A. Dayeh
- Department of Electrical and Computer Engineering; Jacobs School of Engineering; University of California, San Diego; 9500 Gilman Drive La Jolla CA 92093-0407 USA
| | - George G. Malliaras
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE, MOC; 13541 Gardanne France
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Strakosas X, Huerta M, Donahue MJ, Hama A, Pappa AM, Ferro M, Ramuz M, Rivnay J, Owens RM. Catalytically enhanced organic transistors forin vitrotoxicology monitoring through hydrogel entrapment of enzymes. J Appl Polym Sci 2016. [DOI: 10.1002/app.44483] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xenofon Strakosas
- Department of Bioelectronics; Center of Microelectronics in Provence, École des Mines de Saint-Étienne; Gardanne 13541 France
| | - Miriam Huerta
- Department of Infectomics and Molecular Pathogenesis; Cinvestav; Mexico City Mexico
| | - Mary J. Donahue
- Department of Bioelectronics; Center of Microelectronics in Provence, École des Mines de Saint-Étienne; Gardanne 13541 France
| | - Adel Hama
- Department of Bioelectronics; Center of Microelectronics in Provence, École des Mines de Saint-Étienne; Gardanne 13541 France
| | - Anna-Maria Pappa
- Department of Bioelectronics; Center of Microelectronics in Provence, École des Mines de Saint-Étienne; Gardanne 13541 France
| | - Magali Ferro
- Department of Bioelectronics; Center of Microelectronics in Provence, École des Mines de Saint-Étienne; Gardanne 13541 France
| | - Marc Ramuz
- Department of Flexible Electronics; Center of Microelectronics in Provence, École des Mines de Saint-Étienne; Gardanne 13541 France
| | - Jonathan Rivnay
- Department of Bioelectronics; Center of Microelectronics in Provence, École des Mines de Saint-Étienne; Gardanne 13541 France
| | - Roisin M. Owens
- Department of Bioelectronics; Center of Microelectronics in Provence, École des Mines de Saint-Étienne; Gardanne 13541 France
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Ogawa S, Awaga Y, Takashima M, Hama A, Matsuda A, Takamatsu H. Knee osteoarthritis pain following medial meniscectomy in the nonhuman primate. Osteoarthritis Cartilage 2016; 24:1190-9. [PMID: 26944197 DOI: 10.1016/j.joca.2016.02.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 02/08/2016] [Accepted: 02/12/2016] [Indexed: 02/06/2023]
Abstract
OBJECTIVE A number of promising compounds developed for osteoarthritic pain have failed to demonstrate clinical efficacy. To enhance preclinical translational research for osteoarthritis, a model of knee osteoarthritis pain was developed in Macaca fascicularis and the effects of two distinct pharmacological classes of drugs were tested on pain-related behavior. DESIGN Behavioral assessments were developed specifically for the macaque. Baseline knee pressure threshold and weight bearing were assessed prior to a unilateral medial meniscectomy (MMx). Fifteen days following MMx, macaques underwent a once daily exercise regimen for 36 days. Sixty-seven days following MMx, macaques were assigned to one of three treatment groups (n = 3/group), either non-steroidal anti-inflammatory drug (NSAID) diclofenac, NK1 receptor antagonist aprepitant or vehicle, and treated for 5 days. Animals were tested 3-4 h after p.o. dosing and testing was performed blinded. Treatment utilized a crossover design-each animal received all treatments-and a 9-day washout period was utilized between treatments. RESULTS Vehicle-treated macaques consistently demonstrated decreased ipsilateral pressure threshold ("hyperalgesia") and decreased weight bearing. While diclofenac increased weight bearing and pressure threshold, full attenuation of pain was not obtained. No significant improvement of either knee pressure or weight bearing was observed with aprepitant. CONCLUSIONS Unilateral MMx in the macaque evoked pain-related behaviors and knee joint pathology reminiscent of osteoarthritis. The behavioral endpoints were sensitive to NSAID treatment but not sensitive to NK1 receptor block, which parallel clinical findings. The current macaque osteoarthritis model could be used to test potential treatments for osteoarthritis pain.
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Affiliation(s)
- S Ogawa
- Hamamatsu Pharma Research, Inc., Hamamatsu, Japan
| | - Y Awaga
- Hamamatsu Pharma Research, Inc., Hamamatsu, Japan
| | - M Takashima
- Hamamatsu Pharma Research, Inc., Hamamatsu, Japan
| | - A Hama
- Hamamatsu Pharma Research, Inc., Hamamatsu, Japan.
| | - A Matsuda
- Hamamatsu Pharma Research, Inc., Hamamatsu, Japan
| | - H Takamatsu
- Hamamatsu Pharma Research, Inc., Hamamatsu, Japan
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Huerta M, Rivnay J, Ramuz M, Hama A, Owens RM. Early Detection of NephrotoxicityIn VitroUsing a Transparent Conducting Polymer Device. ACTA ACUST UNITED AC 2016. [DOI: 10.1089/aivt.2015.0028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Miriam Huerta
- Department of Bioelectronics, École Nationale Supérieure des Mines, Gardanne, France
| | - Jonathan Rivnay
- Department of Bioelectronics, École Nationale Supérieure des Mines, Gardanne, France
| | - Marc Ramuz
- Department of Bioelectronics, École Nationale Supérieure des Mines, Gardanne, France
| | - Adel Hama
- Department of Bioelectronics, École Nationale Supérieure des Mines, Gardanne, France
| | - Roisin M. Owens
- Department of Bioelectronics, École Nationale Supérieure des Mines, Gardanne, France
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Moyen E, Hama A, Ismailova E, Assaud L, Malliaras G, Hanbücken M, Owens RM. Nanostructured conducting polymers for stiffness controlled cell adhesion. Nanotechnology 2016; 27:074001. [PMID: 26790487 DOI: 10.1088/0957-4484/27/7/074001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
UNLABELLED We propose a facile and reproducible method, based on ultra thin porous alumina membranes, to produce cm(2) ordered arrays of nano-pores and nano-pillars on any kind of substrates. In particular our method enables the fabrication of conducting polymers nano-structures, such as poly[3,4-ethylenedioxythiophene]:poly[styrene sulfonate] ( PEDOT PSS). Here, we demonstrate the potential interest of those templates with controlled cell adhesion studies. The triggering of the eventual fate of the cell (proliferation, death, differentiation or migration) is mediated through chemical cues from the adsorbed proteins and physical cues such as surface energy, stiffness and topography. Interestingly, as well as through material properties, stiffness modifications can be induced by nano-topography, the ability of nano-pillars to bend defining an effective stiffness. By controlling the diameter, length, depth and material of the nano-structures, one can possibly tune the effective stiffness of a (nano) structured substrate. First results indicate a possible change in the fate of living cells on such nano-patterned devices, whether they are made of conducting polymer (soft material) or silicon (hard material).
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Affiliation(s)
- Eric Moyen
- Centre Microélectronique de Provence, Department of Bioelectronics, Ecole Nationale Supérieure des Mines de Saint Etienne, 880 route de Mimet, F-13541 Gardanne, France. CNRS-Aix-Marseille University, CINaM, F-13288 Marseille, France
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Rivnay J, Leleux P, Hama A, Ramuz M, Huerta M, Malliaras GG, Owens RM. Using white noise to gate organic transistors for dynamic monitoring of cultured cell layers. Sci Rep 2015; 5:11613. [PMID: 26112429 PMCID: PMC4481393 DOI: 10.1038/srep11613] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [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: 02/27/2015] [Accepted: 06/01/2015] [Indexed: 11/18/2022] Open
Abstract
Impedance sensing of biological systems allows for monitoring of cell and tissue properties, including cell-substrate attachment, layer confluence, and the “tightness” of an epithelial tissue. These properties are critical for electrical detection of tissue health and viability in applications such as toxicological screening. Organic transistors based on conducting polymers offer a promising route to efficiently transduce ionic currents to attain high quality impedance spectra, but collection of complete impedance spectra can be time consuming (minutes). By applying uniform white noise at the gate of an organic electrochemical transistor (OECT), and measuring the resulting current noise, we are able to dynamically monitor the impedance and thus integrity of cultured epithelial monolayers. We show that noise sourcing can be used to track rapid monolayer disruption due to compounds which interfere with dynamic polymerization events crucial for maintaining cytoskeletal integrity, and to resolve sub-second alterations to the monolayer integrity.
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Affiliation(s)
- Jonathan Rivnay
- Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France
| | - Pierre Leleux
- 1] Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France [2] Microvitae Technologies, Hôtel Technologique, Europarc Sainte Victoire Bât 6 Route de Valbrillant, 13590 Meyreuil, France
| | - Adel Hama
- Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France
| | - Marc Ramuz
- Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France
| | - Miriam Huerta
- Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France
| | - George G Malliaras
- Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France
| | - Roisin M Owens
- Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France
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Ramuz M, Margita K, Hama A, Leleux P, Rivnay J, Bazin I, Owens RM. Optimization of a Planar All-Polymer Transistor for Characterization of Barrier Tissue. Chemphyschem 2015; 16:1210-6. [DOI: 10.1002/cphc.201402878] [Citation(s) in RCA: 18] [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: 12/12/2014] [Indexed: 11/09/2022]
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Abstract
Barrier tissue protects the body against external factors by restricting the passage of molecules. The gastrointestinal epithelium is an example of barrier tissue with the primary purpose of allowing the passage of ions and nutrients, while restricting the passage of pathogens and toxins. It is well known that the loss of barrier function can be instigated by a decrease in extracellular calcium levels, leading to changes in protein conformation and an increase in paracellular transport. In this study, ethylene glycol-bis(beta-aminoethyl ether)-N,N,N',N'-tetra acetic acid (EGTA), a calcium chelator, was used to disrupt the gastrointestinal epithelial barrier. The effect of EGTA on barrier tissue was monitored by a novel label-free method based on an organic electrochemical transistor (OECT) integrated with living cells and validated against conventional methods for measuring barrier tissue integrity. We demonstrate that the OECT can detect breaches in barrier tissue upon exposure to EGTA with the same sensitivity as existing methods but with increased temporal resolution. Due to the potential of low cost processing techniques and the flexibility in design associated with organic electronics, the OECT has great potential for high-throughput, disposable sensing and diagnostics.
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Affiliation(s)
| | | | | | | | - Róisín M. Owens
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +33-442-616-645; Fax: +33-442-616-697
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28
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Ramuz M, Hama A, Rivnay J, Leleux P, Owens RM. Monitoring of cell layer coverage and differentiation with the organic electrochemical transistor. J Mater Chem B 2015; 3:5971-5977. [DOI: 10.1039/c5tb00922g] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
High resolution monitoring of cell layer integrity with the OECT was up until now, limited to high resistance, barrier tissue type cells. In this work, the sensitivity and versatility of the device is expanded to monitor all adherent cell types.
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Affiliation(s)
- M. Ramuz
- Department of Bioelectronics
- Ecole des Mines de St. Etienne
- CMP-EMSE
- MOC
- France
| | - A. Hama
- Department of Bioelectronics
- Ecole des Mines de St. Etienne
- CMP-EMSE
- MOC
- France
| | - J. Rivnay
- Department of Bioelectronics
- Ecole des Mines de St. Etienne
- CMP-EMSE
- MOC
- France
| | - P. Leleux
- Department of Bioelectronics
- Ecole des Mines de St. Etienne
- CMP-EMSE
- MOC
- France
| | - R. M. Owens
- Department of Bioelectronics
- Ecole des Mines de St. Etienne
- CMP-EMSE
- MOC
- France
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Ramuz M, Hama A, Huerta M, Rivnay J, Leleux P, Owens RM. Combined optical and electronic sensing of epithelial cells using planar organic transistors. Adv Mater 2014; 26:7083-90. [PMID: 25179835 PMCID: PMC4489338 DOI: 10.1002/adma.201401706] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 07/28/2014] [Indexed: 05/17/2023]
Abstract
A planar, conducting-polymer-based transistor for combined optical and electronic monitoring of live cells provides a unique platform for monitoring the health of cells in vitro. Monitoring of MDCK-I epithelial cells over several days is shown, along with a demonstration of the device for toxicology studies, of use in future drug discovery or diagnostics applications.
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Affiliation(s)
- Marc Ramuz
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC880 avenue de Mimet, 13541, Gardanne, France E-mail:
| | - Adel Hama
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC880 avenue de Mimet, 13541, Gardanne, France E-mail:
| | - Miriam Huerta
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC880 avenue de Mimet, 13541, Gardanne, France E-mail:
| | - Jonathan Rivnay
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC880 avenue de Mimet, 13541, Gardanne, France E-mail:
| | - Pierre Leleux
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC880 avenue de Mimet, 13541, Gardanne, France E-mail:
- Aix-Marseille Université, Institut de Neurosciences des Systèmes13005, Marseille, France
- Inserm, UMR_S 110613005, Marseille, France
- Microvitae Technologies, Pôle d’Activité Y. Morandat13120, Gardanne, France
| | - Róisín M Owens
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC880 avenue de Mimet, 13541, Gardanne, France E-mail:
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30
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Tria SA, Ramuz M, Huerta M, Leleux P, Rivnay J, Jimison LH, Hama A, Malliaras GG, Owens RM. Dynamic monitoring of Salmonella typhimurium infection of polarized epithelia using organic transistors. Adv Healthc Mater 2014; 3:1053-60. [PMID: 24497469 DOI: 10.1002/adhm.201300632] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [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: 11/13/2013] [Revised: 12/18/2013] [Indexed: 11/08/2022]
Abstract
Ion flow across polarized epithelia is a tightly regulated process. Measurement of the transepithelial resistance is a highly relevant parameter for assessing the function or health of the tissue. Dynamic, electrical measurements of transepithelial ion flow are preferred as they provide the most accurate snapshot of effects of external stimuli. Enteric pathogens such as Salmonella typhimurium are known to disrupt ion flow in gastrointestinal epithelia. Here, for the first time, the use of organic transistors as a powerful potential alternative for front-line, disposable, high-throughput diagnostics of enteric pathogens is demonstrated. The transistors' ability to detect early and subtle changes in transepithelial ion flow is capitalized upon to develop a highly sensitive detector of epithelial integrity. Stable operation of the organic devices under physiological conditions is shown, followed by dynamic, pathogen-specific diagnosis of infection of epithelia. Further, operation of the device is possible in complex matrices, showing particular promise for food and safety applications.
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Affiliation(s)
- Scherrine A. Tria
- Department of Bioelectronics Ecole Nationale Supérieure des Mines, CMP‐EMSE MOC 13541 Gardanne France
| | - Marc Ramuz
- Department of Bioelectronics Ecole Nationale Supérieure des Mines, CMP‐EMSE MOC 13541 Gardanne France
| | - Miriam Huerta
- Department of Bioelectronics Ecole Nationale Supérieure des Mines, CMP‐EMSE MOC 13541 Gardanne France
| | - Pierre Leleux
- Department of Bioelectronics Ecole Nationale Supérieure des Mines, CMP‐EMSE MOC 13541 Gardanne France
- Aix‐Marseille Université, Institut de Neurosciences des Systèmes 13005 Marseille France
- Inserm, UMR_S 1106 13005 Marseille France
- Microvitae Technologies, Pôle d'Activité Y. Morandat 13120 Gardanne France
| | - Jonathan Rivnay
- Department of Bioelectronics Ecole Nationale Supérieure des Mines, CMP‐EMSE MOC 13541 Gardanne France
| | - Leslie H. Jimison
- Department of Bioelectronics Ecole Nationale Supérieure des Mines, CMP‐EMSE MOC 13541 Gardanne France
- Johns Hopkins University Applied Physics LaboratoryResearch and Exploratory Development Division 11100 Johns Hopkins Rd. Laurel MD 20723 USA
| | - Adel Hama
- Department of Bioelectronics Ecole Nationale Supérieure des Mines, CMP‐EMSE MOC 13541 Gardanne France
| | - George G. Malliaras
- Department of Bioelectronics Ecole Nationale Supérieure des Mines, CMP‐EMSE MOC 13541 Gardanne France
| | - Róisín M. Owens
- Department of Bioelectronics Ecole Nationale Supérieure des Mines, CMP‐EMSE MOC 13541 Gardanne France
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Tria SA, Ramuz M, Jimison LH, Hama A, Owens RM. Sensing of barrier tissue disruption with an organic electrochemical transistor. J Vis Exp 2014:e51102. [PMID: 24561449 DOI: 10.3791/51102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The gastrointestinal tract is an example of barrier tissue that provides a physical barrier against entry of pathogens and toxins, while allowing the passage of necessary ions and molecules. A breach in this barrier can be caused by a reduction in the extracellular calcium concentration. This reduction in calcium concentration causes a conformational change in proteins involved in the sealing of the barrier, leading to an increase of the paracellular flux. To mimic this effect the calcium chelator ethylene glycol-bis(beta-aminoethyl ether)-N,N,N',N'-tetra acetic acid (EGTA) was used on a monolayer of cells known to be representative of the gastrointestinal tract. Different methods to detect the disruption of the barrier tissue already exist, such as immunofluorescence and permeability assays. However, these methods are time-consuming and costly and not suited to dynamic or high-throughput measurements. Electronic methods for measuring barrier tissue integrity also exist for measurement of the transepithelial resistance (TER), however these are often costly and complex. The development of rapid, cheap, and sensitive methods is urgently needed as the integrity of barrier tissue is a key parameter in drug discovery and pathogen/toxin diagnostics. The organic electrochemical transistor (OECT) integrated with barrier tissue forming cells has been shown as a new device capable of dynamically monitoring barrier tissue integrity. The device is able to measure minute variations in ionic flux with unprecedented temporal resolution and sensitivity, in real time, as an indicator of barrier tissue integrity. This new method is based on a simple device that can be compatible with high throughput screening applications and fabricated at low cost.
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Affiliation(s)
- Scherrine A Tria
- Department of Bioelectronics, Ecole Nationale Superieure des Mines
| | - Marc Ramuz
- Department of Bioelectronics, Ecole Nationale Superieure des Mines
| | - Leslie H Jimison
- Research and Exploratory Development Division, Applied Physics Laboratory, Johns Hopkins University
| | - Adel Hama
- Department of Bioelectronics, Ecole Nationale Superieure des Mines
| | - Roisin M Owens
- Department of Bioelectronics, Ecole Nationale Superieure des Mines;
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Strakosas X, Sessolo M, Hama A, Rivnay J, Stavrinidou E, Malliaras GG, Owens RM. A facile biofunctionalisation route for solution processable conducting polymer devices. J Mater Chem B 2014; 2:2537-2545. [DOI: 10.1039/c3tb21491e] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
For the majority of biosensors or biomedical devices, immobilization of the biorecognition element is a critical step for device function.
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Affiliation(s)
- Xenofon Strakosas
- Department of Bioelectronics
- Ecole Nationale Supérieure des Mines
- CMP-EMSE
- MOC
- , France
| | - Michele Sessolo
- Department of Bioelectronics
- Ecole Nationale Supérieure des Mines
- CMP-EMSE
- MOC
- , France
| | - Adel Hama
- Department of Bioelectronics
- Ecole Nationale Supérieure des Mines
- CMP-EMSE
- MOC
- , France
| | - Jonathan Rivnay
- Department of Bioelectronics
- Ecole Nationale Supérieure des Mines
- CMP-EMSE
- MOC
- , France
| | - Eleni Stavrinidou
- Department of Bioelectronics
- Ecole Nationale Supérieure des Mines
- CMP-EMSE
- MOC
- , France
| | - George G. Malliaras
- Department of Bioelectronics
- Ecole Nationale Supérieure des Mines
- CMP-EMSE
- MOC
- , France
| | - Roisin M. Owens
- Department of Bioelectronics
- Ecole Nationale Supérieure des Mines
- CMP-EMSE
- MOC
- , France
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Hama A, Muramatsu H, Ito M, Tsuchida M, Takahashi Y, Kobayashi R, Ito E, Yabe H, Ohga S, Ohara A, Kojima S. P-149 Comparison of long-term outcomes between children with aplastic anemia and RCC who received immunosuppressive therapy with ATG and cyclosporine. Leuk Res 2013. [DOI: 10.1016/s0145-2126(13)70197-8] [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: 11/28/2022]
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Muramatsu H, Sakaguchi H, Xu Y, Yoshida K, Okuno Y, Hama A, Takahashi Y, Makishima H, Maciejewski J, Ogawa S, Kojima S. P-146 Clinical and genetic characterization of 17 juvenile myelomonocytic leukemia patients with c-CBL mutations. Leuk Res 2013. [DOI: 10.1016/s0145-2126(13)70194-2] [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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Bongo M, Winther-Jensen O, Himmelberger S, Strakosas X, Ramuz M, Hama A, Stavrinidou E, Malliaras GG, Salleo A, Winther-Jensen B, Owens RM. PEDOT:gelatin composites mediate brain endothelial cell adhesion. J Mater Chem B 2013; 1:3860-3867. [DOI: 10.1039/c3tb20374c] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tria SA, Jimison LH, Hama A, Bongo M, Owens RM. Validation of the organic electrochemical transistor for in vitro toxicology. Biochim Biophys Acta Gen Subj 2012; 1830:4381-90. [PMID: 23246813 DOI: 10.1016/j.bbagen.2012.12.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Revised: 12/03/2012] [Accepted: 12/04/2012] [Indexed: 01/09/2023]
Abstract
BACKGROUND The gastrointestinal epithelium provides a physical and biochemical barrier to the passage of ions and small molecules; however this barrier may be breached by pathogens and toxins. The effect of individual pathogens/toxins on the intestinal epithelium has been well characterized: they disrupt barrier tissue in a variety of ways, such as by targeting tight junction proteins, or other elements of the junctions between adjacent cells. A variety of methods have been used to characterize disruption in barrier tissue, such as immunofluorescence, permeability assays and electrical measurements of epithelia resistance, but these methods remain time consuming, costly and ill-suited to diagnostics or high throughput toxicology. METHODS The advent of organic electronics has created a unique opportunity to interface the worlds of electronics and biology, using devices such as the organic electrochemical transistor (OECT), whose low cost materials and potential for easy fabrication in high throughput formats represent a novel solution for assessing epithelial tissue integrity. RESULTS In this study, OECTs were integrated with gastro-intestinal cell monolayers to study the integrity of the gastrointestinal epithelium, providing a very sensitive way to detect minute changes in ion flow across the cell layer due to inherent amplification by the transistor. MAJOR CONCLUSIONS We validate the OECT against traditional methods by monitoring the effect of toxic compounds on epithelial tissue. We show a systematic characterization of this novel method, alongside existing methods used to assess barrier tissue function. GENERAL SIGNIFICANCE The toxic compounds induce a dramatic disruption of barrier tissue, and the OECT measures this disruption with increased temporal resolution and greater or equal sensitivity when compared with existing methods. This article is part of a Special Issue entitled Organic Bioelectronics - Novel Applications in Biomedicine.
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Affiliation(s)
- Scherrine A Tria
- Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 880 Rue de Mimet, Gardanne 13541, France
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Jimison LH, Tria SA, Khodagholy D, Gurfinkel M, Lanzarini E, Hama A, Malliaras GG, Owens RM. Measurement of barrier tissue integrity with an organic electrochemical transistor. Adv Mater 2012; 24:5919-5923. [PMID: 22949380 DOI: 10.1002/adma.201202612] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 08/04/2012] [Indexed: 06/01/2023]
Abstract
The integration of an organic electrochemical transistor with human barrier tissue cells provides a novel method for assessing toxicology of compounds in vitro. Minute variations in paracellular ionic flux induced by toxic compounds are measured in real time, with unprecedented temporal resolution and extreme sensitivity.
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Affiliation(s)
- Leslie H Jimison
- Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 880 Rue de Mimet, Gardanne 13541, France
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Ohmoto M, Sakaishi K, Hama A, Morita A, Nomura M, Mitsumoto Y. Association Between Dopamine Receptor 2 TaqIA Polymorphisms and Smoking Behavior With an Influence of Ethnicity: A Systematic Review and Meta-Analysis Update. Nicotine Tob Res 2012; 15:633-42. [DOI: 10.1093/ntr/nts196] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Hama A. The challenge of understanding peripherally mediated antinociception: commentary on a paper by Chung et al. (2012, this issue). Eur J Pain 2012; 16:949-50. [PMID: 22528949 DOI: 10.1002/j.1532-2149.2012.00160.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- A Hama
- University of Miami Miller School of Medicine, FL 33136, USA.
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Jimison LH, Hama A, Strakosas X, Armel V, Khodagholy D, Ismailova E, Malliaras GG, Winther-Jensen B, Owens RM. PEDOT:TOS with PEG: a biofunctional surface with improved electronic characteristics. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32188b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Narita A, Muramatsu H, Takahashi Y, Sakaguchi H, Doisaki S, Nishio N, Hama A, Shimada A, Ito M, Kojima S. Autoimmune-like hepatitis following unrelated BMT successfully treated with rituximab. Bone Marrow Transplant 2011; 47:600-2. [PMID: 21666737 DOI: 10.1038/bmt.2011.124] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Ito M, Hama A, Manabe A, Kojima S. 120 Diagnosing pedia trie bone marrow failures by objective myelodysplastic syndrome scoring system: A histopathological review. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70122-9] [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: 10/18/2022]
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43
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Hama A, Ito M, Manabe A, Ohara A, Kojima S. 91 A comparison of clinical findings between aplastic anemia and refractory cytopenia of childhood in 78 cases reviewed by central reviewers. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70093-5] [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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44
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Yagasaki H, Takahashi Y, Hama A, Kudo K, Nishio N, Muramatsu H, Tanaka M, Yoshida N, Matsumoto K, Watanabe N, Kato K, Horibe K, Kojima S. Comparison of matched-sibling donor BMT and unrelated donor BMT in children and adolescent with acquired severe aplastic anemia. Bone Marrow Transplant 2010; 45:1508-13. [PMID: 20118992 DOI: 10.1038/bmt.2009.378] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
From January 1991 to March 2007, 61 children and adolescent with acquired severe aplastic anemia received BMT in our institutions. We retrospectively compared the outcome of 30 cases of matched-sibling donor BMT (MSD-BMT) and 31 cases of unrelated donor BMT (URD-BMT). We observed one graft failure among MSD-BMT recipients and three graft failures among URD-BMT recipients, respectively. No patients in the MSD-BMT group developed grades II-IV acute GVHD compared with 11 of 30 patients (37%) in the URD-BMT group (P<0.001). One of 30 MSD-BMT recipients (3%) developed chronic GVHD compared with 8 of 30 URD-BMT recipients (27%) (P=0.013). The incidence of EBV and CMV reactivation was 11 of 20 URD-BMT recipients and 23 of 30, respectively. One patient in the URD-BMT group died of a motor accident 5.5 years after BMT. Ten-year OS was 100% in MSD-BMT recipients and 93.8% (95% CI, 81.9-100%) in URD-BMT recipients, respectively (P=0.252). Ten-year failure-free survival was 96.7% (95% CI, 90.2-100%) in the MSD-BMT group and 84.7% (95% CI, 70.2-99.2%) in the URD-BMT group, respectively (P=0.161).
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Affiliation(s)
- H Yagasaki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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45
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Nishio N, Yagasaki H, Takahashi Y, Muramatsu H, Hama A, Tanaka M, Yoshida N, Watanabe N, Kudo K, Yoshimi A, Kojima S. Late-onset non-infectious pulmonary complications following allogeneic hematopoietic stem cell transplantation in children. Bone Marrow Transplant 2009; 44:303-8. [PMID: 19349954 DOI: 10.1038/bmt.2009.33] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Late-onset non-infectious pulmonary complications (LONIPCs) that arise beyond 3 months after allogeneic hematopoietic SCT include bronchiolitis obliterans (BO), bronchiolitis obliterans with organizing pneumonia (BOOP) and idiopathic pneumonia syndrome (IPS). We retrospectively analyzed the incidence and outcome of LONIPCs among pediatric hematopoietic SCT recipients. We included 97 patients who survived for more than 3 months among the 114 who underwent allogeneic hematopoietic SCT between April 1997 and May 2007. Of the 97 enrolled patients, 10 (10.3%) developed LONIPCs at a median of 187 days after hematopoietic SCT (range, 123-826 days). Of the 10 patients with LONIPCs, eight had BO and two had IPS. Multivariate analysis showed that the onset of LONIPCs was associated with high-risk underlying disease and extensive chronic GVHD (hazard ratio, 5.42 (95% confidence interval, 1.36-21.7) and hazard ratio, 11.7 (95% confidence interval, 2.40-57.1), respectively). Only two patients responded to therapy with steroids and six of the 10 patients died. The 5-year OS rate was significantly lower among patients with, than without LONIPCs (28.0 vs 87.2%, P=0.000). Considering that we are lacking optimal therapies for LONIPCs, strategies aimed at the prevention of LONIPCs should be attempted.
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Affiliation(s)
- N Nishio
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Wang Y, Yagasaki H, Hama A, Nishio N, Takahashi Y, Kojima S. Mutation of SBDS and SH2D1A is not associated with aplastic anemia in Japanese children. Haematologica 2007; 92:1573. [DOI: 10.3324/haematol.11568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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47
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Inukai T, Hirose K, Inaba T, Kurosawa H, Hama A, Inada H, Chin M, Nagatoshi Y, Ohtsuka Y, Oda M, Goto H, Endo M, Morimoto A, Imaizumi M, Kawamura N, Miyajima Y, Ohtake M, Miyaji R, Saito M, Tawa A, Yanai F, Goi K, Nakazawa S, Sugita K. Hypercalcemia in childhood acute lymphoblastic leukemia: frequent implication of parathyroid hormone-related peptide and E2A-HLF from translocation 17;19. Leukemia 2006; 21:288-96. [PMID: 17183364 DOI: 10.1038/sj.leu.2404496] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [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: 11/09/2022]
Abstract
Hypercalcemia is relatively rare but clinically important complication in childhood leukemic patients. To clarify the clinical characteristics, mechanisms of hypercalcemia, response to management for hypercalcemia, incidence of t(17;19) and final outcome of childhood acute lymphoblastic leukemia (ALL) accompanied by hypercalcemia, clinical data of 22 cases of childhood ALL accompanied by hypercalcemia (>12 mg/dl) reported in Japan from 1990 to 2005 were retrospectively analyzed. Eleven patients were 10 years and older. Twenty patients had low white blood cell count (<20 x 10(9)/l), 15 showed hemoglobin> or =8 g/dl and 14 showed platelet count > or =100 x 10(9)/l. Parathyroid hormone-related peptide (PTHrP)-mediated hypercalcemia was confirmed in 11 of the 16 patients in whom elevated-serum level or positive immunohistochemistry of PTHrP was observed. Hypercalcemia and accompanying renal insufficiency resolved quickly, particularly in patients treated with bisphosphonate. t(17;19) or add(19)(p13) was detected in five patients among 17 patients in whom karyotypic data were available, and the presence of E2A-HLF was confirmed in these five patients. All five patients with t(17;19)-ALL relapsed very early. Excluding the t(17;19)-ALL patients, the final outcome of ALL accompanied by hypercalcemia was similar to that of all childhood ALL patients, indicating that the development of hypercalcemia itself is not a poor prognostic factor.
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Affiliation(s)
- T Inukai
- Department of Pediatrics, University of Yamanashi, School of Medicine, Yamanashi, Japan.
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48
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Watanabe N, Kamachi Y, Koyama N, Hama A, Liang J, Nakamura Y, Yamamoto T, Isomura M, Kudo K, Kuzushima K, Kojima S. Expansion of human CMV-specific cytotoxic T lymphocytes to a clinical scale: a simple culture system using tetrameric HLA–peptide complexes. Cytotherapy 2004; 6:514-22. [PMID: 15512918 DOI: 10.1080/14653240410005005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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: 10/26/2022]
Abstract
BACKGROUND Recipients of allogeneic stem cell transplants (SCT) are at risk of human CMV infection during their immunocompromised period. The increasing number of reports of CMV isolates resistant to ganciclovir after transplantation has led us to attempt to develop alternative strategies for preventing or treating CMV infection. This study describes a system for generating sufficient numbers of CMV-specific cytotoxic T lymphocytes (CTL) for adoptive immunotherapy after SCT. METHODS CMV-specific CTL were isolated from a single blood draw of a CMV-seropositive donor using PE-labeled HLA-A*0201/pp65(495-503) tetramers and anti-PE magnetic beads. A mixture of a tetramer-positive population and CD4(+) T lymphocytes was expanded to sufficient numbers for clinical application with IL-2 and immobilized anti-CD3 stimulation. RESULT Starting from 50 mL of blood, we generated >10(7)/m(2) tetramer-positive CTL within 2 weeks. Flow cytometric analysis of expanded lymphocytes showed that purity of CMV peptide-specific CTL was >75%. Upon stimulation of HLA-A*0201-restricted CMV peptide, expanded CD8 T lymphocytes produced intracellular IFN-gamma. Purified CTL exhibited cytotoxic activity against CMV peptide-pulsed T2 cells and CMV-infected HLA-A*0201-positive fibroblasts, but not against HLA mismatched or uninfected target cells. Alloreactivity could be excluded in MLC. DISCUSSION This simple, rapid culture system can be useful for adoptive immunotherapy after allogeneic SCT. We are now trying to adapt our laboratory scale study to a clinical scale study under good manufacturing practices (GMP) conditions.
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Affiliation(s)
- N Watanabe
- Department of Pediatrics/Developmental Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Hama A, Furune S, Nomura K, Takada Y, Matsushima Y. [A case of unilateral moyamoya disease presenting with hemichorea]. No To Hattatsu 2001; 33:166-71. [PMID: 11260920] [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: 02/19/2023]
Abstract
We reported a 12-year-old boy with unilateral moyamoya disease whose initial and predominant manifestation was hemichorea. Neurological examinations revealed chorea in his left upper extremity and muscle hypotonia in his left upper and lower extremities. Cranial MRI showed moyamoya vessels only in the right basal ganglia and infarction in the white matter of the right frontal lobe. Right carotid angiography revealed stenosis in the distal part of internal carotid artery, and in the proximal part of anterior and middle cerebral arteries with moyamoya vessels. Left carotid angiography showed normal findings. He was diagnosed as a suspected case of moyamoya disease (unilateral moyamoya disease) according to the diagnostic criteria proposed by the Research Committee on Moyamoya Disease of the Ministry of Health and Welfare of Japan. His chorea responded to haloperidol but encephalo-duro-arterio-synangiosis on the right side improved all symptoms. Chorea occurs in some patients with moyamoya disease. Hypofunction of the striatal indirect pathway is suggested as the cause of chorea. In this case an ischemic lesion in the right striatum may have caused hypofunction of the pathway and developed chorea and hypotonia.
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Affiliation(s)
- A Hama
- Department of Pediatric Neurology, Japanese Red Cross Nagoya First Hospital, Nagoya
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50
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Hama A, Menzaghi F. Antagonist of nicotinic acetylcholine receptors (nAChR) enhances formalin-induced nociception in rats: tonic role of nAChRs in the control of pain following injury. Brain Res 2001; 888:102-106. [PMID: 11146056 DOI: 10.1016/s0006-8993(00)03022-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [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: 11/21/2022]
Abstract
Following tissue injury, spinal neurons increase in spontaneous activity and in responsiveness to peripheral stimulation. These changes in spinal neurons may underlie abnormal pain behavior. Nicotinic acetylcholine receptor (nAChR) agonists are analgesic when evaluated in animal models of pain, but it is not known if the nAChRs differentially modulate acute and tonic pain. To test this, mecamylamine, a non-subtype selective nAChR antagonist, was systemically injected into rats prior or after hind paw injection of formalin. Formalin injection results in biphasic pain-related behaviors, characterized by a first phase (i.e. acute pain) immediately following formalin injection, then by a second phase (i.e. tonic pain) 15-60 min after formalin injection. Either pre- or post-formalin treatment with mecamylamine decreased phase 1 behaviors and significantly increased phase 2 pain behaviors in a dose-dependent manner. These results suggest that nAChRs may exert opposing effects on acute versus tonic pain and, as such, may have implications for the potential development of nAChR ligands for the treatment of pain.
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Affiliation(s)
- A Hama
- Merck Research Laboratories, San Diego, 505 Coast Blvd. South, La Jolla, CA 92037, USA.
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