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Deleanu M, Deschaume O, Cipelletti L, Hernandez JF, Bartic C, Cottet H, Chamieh J. Taylor Dispersion Analysis and Atomic Force Microscopy Provide a Quantitative Insight into the Aggregation Kinetics of Aβ (1-40)/Aβ (1-42) Amyloid Peptide Mixtures. ACS Chem Neurosci 2022; 13:786-795. [PMID: 35201761 DOI: 10.1021/acschemneuro.1c00784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Aggregation of amyloid β peptides is known to be one of the main processes responsible for Alzheimer's disease. The resulting dementia is believed to be due in part to the formation of potentially toxic oligomers. However, the study of such intermediates and the understanding of how they form are very challenging because they are heterogeneous and transient in nature. Unfortunately, few techniques can quantify, in real time, the proportion and the size of the different soluble species during the aggregation process. In a previous work (Deleanu et al. Anal. Chem. 2021, 93, 6523-6533), we showed the potential of Taylor dispersion analysis (TDA) in amyloid speciation during the aggregation process of Aβ (1-40) and Aβ (1-42). The current work aims at exploring in detail the aggregation of amyloid Aβ (1-40):Aβ (1-42) peptide mixtures with different proportions of each peptide (1:0, 3:1, 1:1, 1:3, and 0:1) using TDA and atomic force microscopy (AFM). TDA allowed for monitoring the kinetics of the amyloid assembly and quantifying the transient intermediates. Complementarily, AFM allowed the formation of insoluble fibrils to be visualized. Together, the two techniques enabled us to study the influence of the peptide ratios on the kinetics and the formation of potentially toxic oligomeric species.
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Affiliation(s)
- Mihai Deleanu
- IBMM, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Olivier Deschaume
- Department of Physics and Astronomy, Soft-Matter Physics and Biophysics Section, KU Leuven, Celestijnenlaan 200D, Box 2416, 3001 Heverlee, Belgium
| | - Luca Cipelletti
- L2C, Université Montpellier, 34095 Montpellier, France
- Institut Universitaire de France (IUF), Paris, France
| | | | - Carmen Bartic
- Department of Physics and Astronomy, Soft-Matter Physics and Biophysics Section, KU Leuven, Celestijnenlaan 200D, Box 2416, 3001 Heverlee, Belgium
| | - Hervé Cottet
- IBMM, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Joseph Chamieh
- IBMM, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France
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2
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Duroux C, Hagège A. CE-ICP-MS to probe Aβ1-42 / copper (II) interactions, a complementary tool to study amyloid aggregation in Alzheimer's Disease. Metallomics 2021; 14:6482862. [PMID: 34951920 DOI: 10.1093/mtomcs/mfab075] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 12/14/2021] [Indexed: 11/13/2022]
Abstract
Copper (II) ions appear to be involved in the Alzheimer's disease (AD) and seem to influence the aggregation of the amyloid-β1-42 (Aβ1-42) peptide. However, data are not conclusive and still not subject to consensus, copper (II) being suspected to either promote or inhibit aggregation. To address this question, CE-ICP-MS hyphenation was proposed as a complementary tool to follow the distribution of copper in the different oligomeric forms, at different sub-stoichiometries and different incubation times. Results clearly indicated the formation of several negatively charged copper complexes and showed the enhancement of the aggregation rate with copper concentration. Moreover, the variations of copper (II) speciation suggest different aggregation pathway, even for sub-stoichiometric ratios.
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Affiliation(s)
- C Duroux
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, 69100 Villeurbanne, France
| | - A Hagège
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, 69100 Villeurbanne, France
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3
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Synthesis, Characterization and Evaluation of Peptide Nanostructures for Biomedical Applications. Molecules 2021; 26:molecules26154587. [PMID: 34361740 PMCID: PMC8348434 DOI: 10.3390/molecules26154587] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/04/2021] [Accepted: 07/17/2021] [Indexed: 12/19/2022] Open
Abstract
There is a challenging need for the development of new alternative nanostructures that can allow the coupling and/or encapsulation of therapeutic/diagnostic molecules while reducing their toxicity and improving their circulation and in-vivo targeting. Among the new materials using natural building blocks, peptides have attracted significant interest because of their simple structure, relative chemical and physical stability, diversity of sequences and forms, their easy functionalization with (bio)molecules and the possibility of synthesizing them in large quantities. A number of them have the ability to self-assemble into nanotubes, -spheres, -vesicles or -rods under mild conditions, which opens up new applications in biology and nanomedicine due to their intrinsic biocompatibility and biodegradability as well as their surface chemical reactivity via amino- and carboxyl groups. In order to obtain nanostructures suitable for biomedical applications, the structure, size, shape and surface chemistry of these nanoplatforms must be optimized. These properties depend directly on the nature and sequence of the amino acids that constitute them. It is therefore essential to control the order in which the amino acids are introduced during the synthesis of short peptide chains and to evaluate their in-vitro and in-vivo physico-chemical properties before testing them for biomedical applications. This review therefore focuses on the synthesis, functionalization and characterization of peptide sequences that can self-assemble to form nanostructures. The synthesis in batch or with new continuous flow and microflow techniques will be described and compared in terms of amino acids sequence, purification processes, functionalization or encapsulation of targeting ligands, imaging probes as well as therapeutic molecules. Their chemical and biological characterization will be presented to evaluate their purity, toxicity, biocompatibility and biodistribution, and some therapeutic properties in vitro and in vivo. Finally, their main applications in the biomedical field will be presented so as to highlight their importance and advantages over classical nanostructures.
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Kasturi S, Torati SR, Eom Y, Kim C. Microvalve-controlled miniaturized electrochemical lab-on-a-chip based biosensor for the detection of β-amyloid biomarker. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.02.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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5
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Deleanu M, Hernandez JF, Cipelletti L, Biron JP, Rossi E, Taverna M, Cottet H, Chamieh J. Unraveling the Speciation of β-Amyloid Peptides during the Aggregation Process by Taylor Dispersion Analysis. Anal Chem 2021; 93:6523-6533. [PMID: 33852281 DOI: 10.1021/acs.analchem.1c00527] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Aggregation mechanisms of amyloid β peptides depend on multiple intrinsic and extrinsic physicochemical factors (e.g., peptide chain length, truncation, peptide concentration, pH, ionic strength, temperature, metal concentration, etc.). Due to this high number of parameters, the formation of oligomers and their propensity to aggregate make the elucidation of this physiopathological mechanism a challenging task. From the analytical point of view, up to our knowledge, few techniques are able to quantify, in real time, the proportion and the size of the different soluble species during the aggregation process. This work aims at demonstrating the efficacy of the modern Taylor dispersion analysis (TDA) performed in capillaries (50 μm i.d.) to unravel the speciation of β-amyloid peptides in low-volume peptide samples (∼100 μL) with an analysis time of ∼3 min per run. TDA was applied to study the aggregation process of Aβ(1-40) and Aβ(1-42) peptides at physiological pH and temperature, where more than 140 data points were generated with a total volume of ∼1 μL over the whole aggregation study (about 0.5 μg of peptides). TDA was able to give a complete and quantitative picture of the Aβ speciation during the aggregation process, including the sizing of the oligomers and protofibrils, the consumption of the monomer, and the quantification of different early- and late-formed aggregated species.
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Affiliation(s)
- Mihai Deleanu
- IBMM, ENSCM, Université Montpellier, CNRS, 34095 Montpellier, France
| | | | - Luca Cipelletti
- Laboratoire Charles Coulomb (L2C), Université Montpellier, CNRS, 34095 Montpellier, France.,Institut Universitaire de France (IUF), France
| | | | - Emilie Rossi
- , Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296 Châtenay-Malabry, France
| | - Myriam Taverna
- Institut Universitaire de France (IUF), France.,, Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296 Châtenay-Malabry, France
| | - Hervé Cottet
- IBMM, ENSCM, Université Montpellier, CNRS, 34095 Montpellier, France
| | - Joseph Chamieh
- IBMM, ENSCM, Université Montpellier, CNRS, 34095 Montpellier, France
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6
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Van Thanh Nguyen N, Taverna M, Smadja C, Mai TD. Recent Electrokinetic and Microfluidic Strategies for Detection of Amyloid Beta Peptide Biomarkers: Towards Molecular Diagnosis of Alzheimer's Disease. CHEM REC 2020; 21:149-161. [PMID: 33112020 DOI: 10.1002/tcr.202000103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/05/2020] [Indexed: 11/06/2022]
Abstract
Among all neurodegenerative diseases, Alzheimer's Disease (AD) is the most prevalent worldwide, with a huge burden to the society and no efficient AD treatment so far. Continued efforts have been being made towards early and powerful diagnosis of AD, in the hope for a successful set of clinical trials and subsequently AD curative treatment. Towards this aim, detection and quantification of amyloid beta (Aβ) peptides in cerebrospinal fluid (CSF) and other biofluids, which are established and validated biomarkers for AD, have drawn attention of the scientific community and industry over almost two decades. In this work, an overview on our major contributions over 15 years to develop different electrokinetic and microfluidic strategies for Aβ peptides detection and quantification is reported. Accordingly, discussions and viewpoints on instrumental and methodological developments for microscale electrophoresis, microfluidic designs and immuno-enrichment / assays on magnetic beads in microchannels for tracing Aβ peptides in CSF are given in this review.
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Affiliation(s)
- Ngoc Van Thanh Nguyen
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Myriam Taverna
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296, Châtenay-Malabry, France.,Institut Universitaire de France
| | - Claire Smadja
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Thanh Duc Mai
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296, Châtenay-Malabry, France
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Kaffy J, Berardet C, Mathieu L, Legrand B, Taverna M, Halgand F, Van Der Rest G, Maillard LT, Ongeri S. Helical γ‐Peptide Foldamers as Dual Inhibitors of Amyloid‐β Peptide and Islet Amyloid Polypeptide Oligomerization and Fibrillization. Chemistry 2020; 26:14612-14622. [DOI: 10.1002/chem.202001716] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/28/2020] [Indexed: 01/08/2023]
Affiliation(s)
- Julia Kaffy
- Université Paris-Saclay CNRS BioCIS 92290 Châtenay-Malabry France
| | - Corentin Berardet
- Université Paris-Saclay CNRS BioCIS 92290 Châtenay-Malabry France
- Université Paris Saclay CNRS Institut Galien de Paris Sud 92290 Châtenay-Malabry France
| | - Loïc Mathieu
- Institut des Biomolécules Max Mousseron UMR 5247 CNRS Université de Montpellier-CNRS-ENSCM, UMR 5247 UFR des Sciences Pharmaceutiques et Biologiques 15 Avenue Charles Flahault 34093 Montpellier Cedex 5 France
| | - Baptiste Legrand
- Institut des Biomolécules Max Mousseron UMR 5247 CNRS Université de Montpellier-CNRS-ENSCM, UMR 5247 UFR des Sciences Pharmaceutiques et Biologiques 15 Avenue Charles Flahault 34093 Montpellier Cedex 5 France
| | - Myriam Taverna
- Université Paris Saclay CNRS Institut Galien de Paris Sud 92290 Châtenay-Malabry France
- Institut Universitaire de France 1, rue Descartes 75231 Paris Cedex 05 France
| | - Frédéric Halgand
- Université Paris-Saclay CNRS Institut de Chimie Physique 91405 Orsay France
| | | | - Ludovic T. Maillard
- Institut des Biomolécules Max Mousseron UMR 5247 CNRS Université de Montpellier-CNRS-ENSCM, UMR 5247 UFR des Sciences Pharmaceutiques et Biologiques 15 Avenue Charles Flahault 34093 Montpellier Cedex 5 France
| | - Sandrine Ongeri
- Université Paris-Saclay CNRS BioCIS 92290 Châtenay-Malabry France
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8
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Mai TD, Hauser PC, Descroix S, Crosnier de Lassichère C, Taverna M, Smadja C. In-capillary immuno-preconcentration with circulating bio-functionalized magnetic beads for capillary electrophoresis. Anal Chim Acta 2019; 1062:156-164. [DOI: 10.1016/j.aca.2019.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/22/2019] [Accepted: 02/11/2019] [Indexed: 11/17/2022]
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9
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Demelenne A, Napp A, Bouillenne F, Crommen J, Servais AC, Fillet M. Insulin aggregation assessment by capillary gel electrophoresis without sodium dodecyl sulfate: Comparison with size-exclusion chromatography. Talanta 2019; 199:457-463. [DOI: 10.1016/j.talanta.2019.02.074] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 02/16/2019] [Accepted: 02/20/2019] [Indexed: 01/24/2023]
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10
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Antibody-free detection of amyloid beta peptides biomarkers in cerebrospinal fluid using capillary isotachophoresis coupled with mass spectrometry. J Chromatogr A 2019; 1601:350-356. [PMID: 31101465 DOI: 10.1016/j.chroma.2019.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/26/2019] [Accepted: 05/06/2019] [Indexed: 12/14/2022]
Abstract
This study reports a capillary isotachophoresis (ITP) - electrospray ionization mass spectrometry (ESI-MS) method for the determination of several amyloid β (Aβ) peptides, which are biomarkers of Alzheimer's disease (AD) in cerebrospinal fluids (CSF). For the first time, these peptides have been detected directly from CSF by MS without recourse to an immunocapture-based sample pre-treatment. The antibody-free approach is based on the marriage between capillary ITP, a powerful on-line electrokinetic preconcentration technique, and MS for simultaneous detection of different Aβ peptides. To ensure a good performance, the ITP process of fluorescently labelled Aβ peptides was for the first time implemented and verified with laser induced fluorescent detection, prior to methodology transfer to MS detection. Better detection sensitivity was achieved with labelled Aβ peptides for both detection modes. Using hydroxyl ions as the terminating and acetate as the leading ions, our method allows efficient ITP preconcentration under alkaline conditions of the slowly migrating Aβ peptides to reach quantifiable concentration down to 50 pM. The developed ITP-MS approach allows reliable quantification of different fluorescently derivatized Aβ peptides, i.e. Aβ 1-42, Aβ 1-40 and Aβ 1-38 down to sub nM ranges in CSF samples from AD and non-demented (healthy control) patients. Good agreement (<20% deviation) for the determination of Aβ 1-42/Aβ 1-40 ratio in CSF was achieved between results obtained with this new ITP-MS and our recently developed method based on large volume sample stacking coupled to CE. Discrimination of one AD patient from two healthy controls was successfully made with the Aβ 1-42/Aβ 1-40 ratio obtained by the developed ITP-MS method for the tested cerebrospinal fluid samples.
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11
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A capillary zone electrophoresis method to investigate the oligomerization of the human Islet Amyloid Polypeptide involved in Type 2 Diabetes. J Chromatogr A 2018; 1578:83-90. [DOI: 10.1016/j.chroma.2018.10.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/25/2018] [Accepted: 10/06/2018] [Indexed: 12/18/2022]
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12
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Napp A, Houbart V, Demelenne A, Merville MP, Crommen J, Dumoulin M, Garraux G, Servais AC, Fillet M. Separation and determination of alpha-synuclein monomeric and oligomeric species using two electrophoretic approaches. Electrophoresis 2018; 39:3022-3031. [PMID: 30157293 DOI: 10.1002/elps.201800224] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/11/2018] [Accepted: 07/27/2018] [Indexed: 12/15/2022]
Abstract
Parkinson's disease (PD) is a frequent degenerative disorder that is diagnosed based on clinical symptoms. When the first symptoms appear, more than 70% of the dopaminergic cells are already lost. Therefore, it is of utmost importance to have reliable biomarkers to diagnose much earlier PD. In this context, alpha-synuclein (aSyn) is a protein of high interest because of its tendency to form oligomers and amyloid fibrils. The oligomeric forms seem to play a critical pathological role in PD. To date, most of studies aiming at detecting and quantifying aSyn oligomers were performed by immunoassays, mainly by ELISA using specific antibodies. In this study a capillary gel electrophoresis (CGE) coupled with fluorescence detection method was developed to detect and quantify the oligomeric forms of aSyn formed in vitro. All the results obtained were supported by SDS-PAGE analysis, a widely used and well-known technique but exhibiting a main drawback since it is not an automated technique. The repeatability and the intermediate precision of the method were evaluated, as well as the stability of the labeled and non-labeled aSyn samples. After careful screening and optimization of various labeling reagents, 4-fluoro-7-nitrobenzofurazan (NBD-F) was selected and used to establish a calibration curve with monomeric fluorescently-labeled aSyn. Finally, the method was used to study the effect of doxycycline on the oligomerization process. Altogether, our results show that CGE is a very promising automated technique to analyze aSyn monomers, as well as small oligomers.
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Affiliation(s)
- Aurore Napp
- Laboratory for the Analysis of Medicines, Department of Pharmacy, CIRM, University of Liège, Liège, Belgium
| | - Virginie Houbart
- Laboratory for the Analysis of Medicines, Department of Pharmacy, CIRM, University of Liège, Liège, Belgium
| | - Alice Demelenne
- Laboratory for the Analysis of Medicines, Department of Pharmacy, CIRM, University of Liège, Liège, Belgium
| | - Marie-Paule Merville
- Department of Clinical Chemistry, CIRM, University Hospital Center, University of Liège, Belgium
| | - Jacques Crommen
- Laboratory for the Analysis of Medicines, Department of Pharmacy, CIRM, University of Liège, Liège, Belgium
| | - Mireille Dumoulin
- Laboratory of Enzymology and Protein Folding Centre for Protein Engineering (CIP), University of Liège, Liège, Belgium
| | - Gaëtan Garraux
- Department of Neurology, University Hospital Center, Liège, Belgium
| | - Anne-Catherine Servais
- Laboratory for the Analysis of Medicines, Department of Pharmacy, CIRM, University of Liège, Liège, Belgium
| | - Marianne Fillet
- Laboratory for the Analysis of Medicines, Department of Pharmacy, CIRM, University of Liège, Liège, Belgium
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Recent Advances by In Silico and In Vitro Studies of Amyloid-β 1-42 Fibril Depicted a S-Shape Conformation. Int J Mol Sci 2018; 19:ijms19082415. [PMID: 30115846 PMCID: PMC6121414 DOI: 10.3390/ijms19082415] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 08/09/2018] [Accepted: 08/10/2018] [Indexed: 12/19/2022] Open
Abstract
The amyloid-β 1-42 (Aβ1-42) peptide is produced by proteolytic cleavage of the amyloid precursor protein (APP) by sequential reactions that are catalyzed by γ and β secretases. Aβ1-42, together with the Tau protein are two principal hallmarks of Alzheimer's disease (AD) that are related to disease genesis and progression. Aβ1-42 possesses a higher aggregation propensity, and it is able to form fibrils via nucleated fibril formation. To date, there are compounds available that prevent Aβ1-42 aggregation, but none have been successful in clinical trials, possibly because the Aβ1-42 structure and aggregation mechanisms are not thoroughly understood. New molecules have been designed, employing knowledge of the Aβ1-42 structure and are based on preventing or breaking the ionic interactions that have been proposed for formation of the Aβ1-42 fibril U-shaped structure. Recently, a new Aβ1-42 fibril S-shaped structure was reported that, together with its aggregation and catalytic properties, could be helpful in the design of new inhibitor molecules. Therefore, in silico and in vitro methods have been employed to analyze the Aβ1-42 fibril S-shaped structure and its aggregation to obtain more accurate Aβ1-42 oligomerization data for the design and evaluation of new molecules that can prevent the fibrillation process.
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14
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Structure-activity relationships of β-hairpin mimics as modulators of amyloid β-peptide aggregation. Eur J Med Chem 2018; 154:280-293. [DOI: 10.1016/j.ejmech.2018.05.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/11/2018] [Accepted: 05/12/2018] [Indexed: 12/23/2022]
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15
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An integrated strategy to correlate aggregation state, structure and toxicity of Aß 1-42 oligomers. Talanta 2018; 188:17-26. [PMID: 30029360 DOI: 10.1016/j.talanta.2018.05.062] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/14/2018] [Accepted: 05/17/2018] [Indexed: 01/28/2023]
Abstract
Despite great efforts, it is not known which oligomeric population of amyloid beta (Aß) peptides is the main neurotoxic mediator in Alzheimer's disease. In vitro and in vivo experiments are challenging, mainly because of the high aggregation tendency of Aß (in particular of Aß 1-42 peptide), as well as because of the dynamic and non covalent nature of the prefibrillar aggregates. As a step forward in these studies, an analytical platform is here proposed for the identification and characterization of Aß 1-42 oligomeric populations resulting from three different sample preparation protocols. To preserve the transient nature of aggregates, capillary electrophoresis is employed for monitoring the oligomerization process in solution until fibril precipitation, which is probed by transmission electron microscopy. Based on characterization studies by ultrafiltration and SDS-PAGE/Western Blot, we find that low molecular weight oligomers build up over time and form bigger aggregates (> dodecamers) and that the kinetics strongly depends on sample preparations. The use of phosphate buffer results to be more aggregating, since trimers are the smallest species found in solution, whereas monomers and dimers are obtained by solubilizing Aß 1-42 in a basic mixture. For the first time, attenuated total reflection-Fourier transform infrared spectroscopy is used to assign secondary structure to the separated oligomers. Random coil and/or α-helix are most abundant in smaller species, whereas ß-sheet is the predominant conformation in bigger aggregates, which in turn are demonstrated to be responsible for Aß 1-42 toxicity.
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16
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Crosnier de Lassichère C, Mai TD, Otto M, Taverna M. Online Preconcentration in Capillaries by Multiple Large-Volume Sample Stacking: An Alternative to Immunoassays for Quantification of Amyloid Beta Peptides Biomarkers in Cerebrospinal Fluid. Anal Chem 2018; 90:2555-2563. [DOI: 10.1021/acs.analchem.7b03843] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Cédric Crosnier de Lassichère
- Institut Galien
Paris Sud, UMR 8612, Protein and Nanotechnology in Analytical Science (PNAS), CNRS,
Univ. Paris-Sud, Univ. Paris-Saclay, 5 rue Jean Baptiste Clément, 92290 Châtenay-Malabry, France
| | - Thanh Duc Mai
- Institut Galien
Paris Sud, UMR 8612, Protein and Nanotechnology in Analytical Science (PNAS), CNRS,
Univ. Paris-Sud, Univ. Paris-Saclay, 5 rue Jean Baptiste Clément, 92290 Châtenay-Malabry, France
| | - Markus Otto
- University of Ulm, Department of Neurology, Oberer Eselsberg 45, 89081 Ulm, Germany
| | - Myriam Taverna
- Institut Galien
Paris Sud, UMR 8612, Protein and Nanotechnology in Analytical Science (PNAS), CNRS,
Univ. Paris-Sud, Univ. Paris-Saclay, 5 rue Jean Baptiste Clément, 92290 Châtenay-Malabry, France
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17
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Advances and Pitfalls in the Capillary Electrophoresis Analysis of Aggregates of Beta Amyloid Peptides. SEPARATIONS 2017. [DOI: 10.3390/separations5010002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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18
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Vahdati L, Kaffy J, Brinet D, Bernadat G, Correia I, Panzeri S, Fanelli R, Lequin O, Taverna M, Ongeri S, Piarulli U. Synthesis and Characterization of Hairpin Mimics that Modulate the Early Oligomerization and Fibrillization of Amyloid β-Peptide. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Leila Vahdati
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Julia Kaffy
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Dimitri Brinet
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
- Protéins and Nanotechnology in analytical science; Institut Galien de Paris Sud; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Guillaume Bernadat
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Isabelle Correia
- Sorbonne Universités; UPMC Univ Paris 06; Ecole Normale Supérieure; PSL Research University; CNRS; Laboratoire des Biomolécules; 4 place Jussieu 75252 Paris Cedex 05 France
| | - Silvia Panzeri
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
| | - Roberto Fanelli
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
| | - Olivier Lequin
- Sorbonne Universités; UPMC Univ Paris 06; Ecole Normale Supérieure; PSL Research University; CNRS; Laboratoire des Biomolécules; 4 place Jussieu 75252 Paris Cedex 05 France
| | - Myriam Taverna
- Protéins and Nanotechnology in analytical science; Institut Galien de Paris Sud; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Sandrine Ongeri
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Umberto Piarulli
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
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19
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Brinet D, Gaie-Levrel F, Delatour V, Kaffy J, Ongeri S, Taverna M. In vitro monitoring of amyloid β-peptide oligomerization by Electrospray differential mobility analysis: An alternative tool to evaluate Alzheimer's disease drug candidates. Talanta 2017; 165:84-91. [DOI: 10.1016/j.talanta.2016.12.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 12/04/2016] [Accepted: 12/06/2016] [Indexed: 11/27/2022]
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20
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Pellegrino S, Tonali N, Erba E, Kaffy J, Taverna M, Contini A, Taylor M, Allsop D, Gelmi ML, Ongeri S. β-Hairpin mimics containing a piperidine-pyrrolidine scaffold modulate the β-amyloid aggregation process preserving the monomer species. Chem Sci 2016; 8:1295-1302. [PMID: 28451272 PMCID: PMC5359901 DOI: 10.1039/c6sc03176e] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 10/05/2016] [Indexed: 12/22/2022] Open
Abstract
Alzheimer's disease is a neurodegenerative disorder linked to oligomerization and fibrillization of amyloid β peptides, with Aβ1-42 being the most aggregative and neurotoxic one. We report herein the synthesis and conformational analysis of Aβ1-42-amyloid related β-hairpin peptidomimetics, built on a piperidine-pyrrolidine semi rigid β-turn inducer and bearing two small recognition peptide sequences, designed on oligomeric and fibril structures of Aβ1-42. According to these peptide sequences, a stable β-hairpin or a dynamic equilibrium between two possible architectures was observed. These original constructs are able to greatly delay the kinetics of Aβ1-42 aggregation process as demonstrated by thioflavin-T fluorescence, and transmission electron microscopy. Capillary electrophoresis indicates their ability to preserve the monomer species, inhibiting the formation of toxic oligomers. Furthermore, compounds protect against toxic effects of Aβ on neuroblastoma cells even at substoichiometric concentrations. This study is the first example of acyclic small β-hairpin mimics possessing such a highly efficient anti-aggregation activity. The protective effect is more pronounced than that observed with molecules which have undergone clinical trials. The structural elements made in this study provide valuable insights in the understanding of the aggregation process and insights to explore the design of novel acyclic β-hairpin targeting other types of amyloid-forming proteins.
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Affiliation(s)
- S Pellegrino
- DISFARM-Sez. Chimica Generale e Organica "A. Marchesini" , Universitá degli Studi di Milano , via Venezian 21 , 20133 Milano , Italy .
| | - N Tonali
- Molécules Fluorées et Chimie Médicinale , BioCIS , Univ. Paris-Sud , CNRS , Université Paris Saclay , 5 rue Jean-Baptiste Clément , 92296 Châtenay-Malabry Cedex , France .
| | - E Erba
- DISFARM-Sez. Chimica Generale e Organica "A. Marchesini" , Universitá degli Studi di Milano , via Venezian 21 , 20133 Milano , Italy .
| | - J Kaffy
- Molécules Fluorées et Chimie Médicinale , BioCIS , Univ. Paris-Sud , CNRS , Université Paris Saclay , 5 rue Jean-Baptiste Clément , 92296 Châtenay-Malabry Cedex , France .
| | - M Taverna
- Protéines et Nanotechnologies en Sciences Séparatives , Institut Galien Paris-Sud , Univ. Paris-Sud , CNRS , Université Paris Saclay , 5 rue Jean-Baptiste Clément , 92296 Châtenay-Malabry Cedex , France
| | - A Contini
- DISFARM-Sez. Chimica Generale e Organica "A. Marchesini" , Universitá degli Studi di Milano , via Venezian 21 , 20133 Milano , Italy .
| | - M Taylor
- Lancaster University , Division of Biomedical and Life Sciences , Faculty of Health and Medicine , Lancaster LA1 4YQ , UK
| | - D Allsop
- Lancaster University , Division of Biomedical and Life Sciences , Faculty of Health and Medicine , Lancaster LA1 4YQ , UK
| | - M L Gelmi
- DISFARM-Sez. Chimica Generale e Organica "A. Marchesini" , Universitá degli Studi di Milano , via Venezian 21 , 20133 Milano , Italy .
| | - S Ongeri
- Molécules Fluorées et Chimie Médicinale , BioCIS , Univ. Paris-Sud , CNRS , Université Paris Saclay , 5 rue Jean-Baptiste Clément , 92296 Châtenay-Malabry Cedex , France .
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21
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Deiber JA, Peirotti MB, Piaggio MV. Charge regulation phenomenon predicted from the modeling of polypeptide electrophoretic mobilities as a relevant mechanism of amyloid-beta peptide oligomerization. Electrophoresis 2016; 37:711-8. [DOI: 10.1002/elps.201500391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/10/2015] [Accepted: 12/16/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Julio A. Deiber
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral (UNL); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Santa Fe Argentina
| | - Marta B. Peirotti
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral (UNL); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Santa Fe Argentina
| | - Maria V. Piaggio
- Cátedra de Bioquímica Básica de Macromoléculas, Facultad de Bioquímica y Ciencias Biológicas; UNL; Santa Fe Argentina
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22
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Kaffy J, Brinet D, Soulier JL, Correia I, Tonali N, Fera KF, Iacone Y, Hoffmann ARF, Khemtémourian L, Crousse B, Taylor M, Allsop D, Taverna M, Lequin O, Ongeri S. Designed Glycopeptidomimetics Disrupt Protein-Protein Interactions Mediating Amyloid β-Peptide Aggregation and Restore Neuroblastoma Cell Viability. J Med Chem 2016; 59:2025-40. [PMID: 26789783 DOI: 10.1021/acs.jmedchem.5b01629] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
How anti-Alzheimer's drug candidates that reduce amyloid 1-42 peptide fibrillization interact with the most neurotoxic species is far from being understood. We report herein the capacity of sugar-based peptidomimetics to inhibit both Aβ1-42 early oligomerization and fibrillization. A wide range of bio- and physicochemical techniques, such as a new capillary electrophoresis method, nuclear magnetic resonance, and surface plasmon resonance, were used to identify how these new molecules can delay the aggregation of Aβ1-42. We demonstrate that these molecules interact with soluble oligomers in order to maintain the presence of nontoxic monomers and to prevent fibrillization. These compounds totally suppress the toxicity of Aβ1-42 toward SH-SY5Y neuroblastoma cells, even at substoichiometric concentrations. Furthermore, demonstration that the best molecule combines hydrophobic moieties, hydrogen bond donors and acceptors, ammonium groups, and a hydrophilic β-sheet breaker element provides valuable insight for the future structure-based design of inhibitors of Aβ1-42 aggregation.
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Affiliation(s)
- Julia Kaffy
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Dimitri Brinet
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France.,Protéines et Nanotechnologies en Sciences Séparatives, Institut Galien Paris-Sud, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Jean-Louis Soulier
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Isabelle Correia
- Sorbonne Universités - UPMC Univ Paris 06, Ecole Normale Supérieure - PSL Research University, CNRS UMR 7203 LBM, 4 place Jussieu, 75252 Paris, Cedex 05, France
| | - Nicolo Tonali
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Katia Fabiana Fera
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Yasmine Iacone
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France.,Protéines et Nanotechnologies en Sciences Séparatives, Institut Galien Paris-Sud, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Anaïs R F Hoffmann
- Sorbonne Universités - UPMC Univ Paris 06, Ecole Normale Supérieure - PSL Research University, CNRS UMR 7203 LBM, 4 place Jussieu, 75252 Paris, Cedex 05, France
| | - Lucie Khemtémourian
- Sorbonne Universités - UPMC Univ Paris 06, Ecole Normale Supérieure - PSL Research University, CNRS UMR 7203 LBM, 4 place Jussieu, 75252 Paris, Cedex 05, France
| | - Benoit Crousse
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Mark Taylor
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University , Lancaster LA1 4YQ, U.K
| | - David Allsop
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University , Lancaster LA1 4YQ, U.K
| | - Myriam Taverna
- Protéines et Nanotechnologies en Sciences Séparatives, Institut Galien Paris-Sud, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Olivier Lequin
- Sorbonne Universités - UPMC Univ Paris 06, Ecole Normale Supérieure - PSL Research University, CNRS UMR 7203 LBM, 4 place Jussieu, 75252 Paris, Cedex 05, France
| | - Sandrine Ongeri
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
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23
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Kašička V. Recent developments in capillary and microchip electroseparations of peptides (2013-middle 2015). Electrophoresis 2015; 37:162-88. [DOI: 10.1002/elps.201500329] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 08/25/2015] [Accepted: 08/25/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Václav Kašička
- Institute of Organic Chemistry and Biochemistry, v.v.i; The Czech Academy of Sciences; Prague Czech Republic
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24
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Liu C, Yamaguchi Y, Zhu X, Li Z, Ni Y, Dou X. Analysis of small interfering RNA by capillary electrophoresis in hydroxyethylcellulose solutions. Electrophoresis 2015; 36:1651-7. [PMID: 25867445 DOI: 10.1002/elps.201500018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 03/18/2015] [Accepted: 03/18/2015] [Indexed: 11/10/2022]
Abstract
The analysis of small interfering RNA (siRNA) is important for gene function studies and drug developments. We employed CE to study the separation of siRNA ladder marker, which were ten double-stranded RNA (dsRNA) fragments ranged from 20 to 1000 bp, in solutions of hydroxyethylcellulose (HEC) polymer with different concentrations and molecular weights (Mws). Migration mechanism of dsRNA during CE was studied by the mobility and resolution length (RL) plots. We found that the RL depended on not only the concentration of HEC, but also the Mw of HEC. For instance, RL of small dsRNA fragment was more influenced by concentration of high Mw HEC than large dsRNA fragment and RL of large dsRNA fragment was more influenced by concentration of low Mw HEC than small dsRNA fragment. In addition, we found electrophoretic evidence that the structure of dsRNA was more compact than dsDNA with the same length. In practice, we succeeded to separate the glyceraldehyde 3-phosphate dehydrogenase siRNA in the mixture of the siRNA ladder marker within 4 min.
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Affiliation(s)
- Chenchen Liu
- Engineering Research Center of Optical Instrument and System, University of Shanghai for Science and Technology, Shanghai, P. R. China
| | - Yoshinori Yamaguchi
- Institute of Photonics and Biomedicine (IPBM), Graduate School of Science, East China University of Science and Technology (ECUST), Shanghai, P. R. China.,Department of Applied Physics, Graduate School of Engineering, Osaka University, Yamadaoka, Suita-city, Osaka, Japan
| | - Xifang Zhu
- School of Optoelectronic Engineering, Changzhou Institute of Technology, Changzhou, Jiangsu, P. R. China
| | - Zhenqing Li
- Engineering Research Center of Optical Instrument and System, University of Shanghai for Science and Technology, Shanghai, P. R. China
| | - Yi Ni
- Institute of Photonics and Biomedicine (IPBM), Graduate School of Science, East China University of Science and Technology (ECUST), Shanghai, P. R. China
| | - Xiaoming Dou
- Institute of Photonics and Biomedicine (IPBM), Graduate School of Science, East China University of Science and Technology (ECUST), Shanghai, P. R. China.,School of Optoelectronic Engineering, Changzhou Institute of Technology, Changzhou, Jiangsu, P. R. China
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25
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Mai TD, Pereiro I, Hiraoui M, Viovy JL, Descroix S, Taverna M, Smadja C. Magneto-immunocapture with on-bead fluorescent labeling of amyloid-β peptides: towards a microfluidized-bed-based operation. Analyst 2015. [DOI: 10.1039/c5an01179e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Novel combination of Magneto-immunocapture and on-beads fluorescent labeling of Aβ peptides for their sensitive determination in cerebro spinal fluid samples.
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Affiliation(s)
- Thanh Duc Mai
- Université Paris-Sud
- Institut Galien Paris-Sud
- 92296 Châtenay-Malabry
- France
- CNRS
| | - Iago Pereiro
- Macromolecules and Microsystems in Biology and Medicine
- Institut Curie
- Centre National de Recherche Scientifique
- Université Pierre et Marie Curie
- UMR 168
| | - Mohamed Hiraoui
- Université Paris-Sud
- Institut Galien Paris-Sud
- 92296 Châtenay-Malabry
- France
- CNRS
| | - Jean-Louis Viovy
- Macromolecules and Microsystems in Biology and Medicine
- Institut Curie
- Centre National de Recherche Scientifique
- Université Pierre et Marie Curie
- UMR 168
| | - Stéphanie Descroix
- Macromolecules and Microsystems in Biology and Medicine
- Institut Curie
- Centre National de Recherche Scientifique
- Université Pierre et Marie Curie
- UMR 168
| | - Myriam Taverna
- Université Paris-Sud
- Institut Galien Paris-Sud
- 92296 Châtenay-Malabry
- France
- CNRS
| | - Claire Smadja
- Université Paris-Sud
- Institut Galien Paris-Sud
- 92296 Châtenay-Malabry
- France
- CNRS
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26
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Kaffy J, Brinet D, Soulier JL, Khemtémourian L, Lequin O, Taverna M, Crousse B, Ongeri S. Structure–activity relationships of sugar-based peptidomimetics as modulators of amyloid β-peptide early oligomerization and fibrillization. Eur J Med Chem 2014; 86:752-8. [DOI: 10.1016/j.ejmech.2014.09.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/05/2014] [Accepted: 09/08/2014] [Indexed: 12/19/2022]
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