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Ranasinghe JC, Wang Z, Huang S. Unveiling brain disorders using liquid biopsy and Raman spectroscopy. NANOSCALE 2024; 16:11879-11913. [PMID: 38845582 DOI: 10.1039/d4nr01413h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Brain disorders, including neurodegenerative diseases (NDs) and traumatic brain injury (TBI), present significant challenges in early diagnosis and intervention. Conventional imaging modalities, while valuable, lack the molecular specificity necessary for precise disease characterization. Compared to the study of conventional brain tissues, liquid biopsy, which focuses on blood, tear, saliva, and cerebrospinal fluid (CSF), also unveils a myriad of underlying molecular processes, providing abundant predictive clinical information. In addition, liquid biopsy is minimally- to non-invasive, and highly repeatable, offering the potential for continuous monitoring. Raman spectroscopy (RS), with its ability to provide rich molecular information and cost-effectiveness, holds great potential for transformative advancements in early detection and understanding the biochemical changes associated with NDs and TBI. Recent developments in Raman enhancement technologies and advanced data analysis methods have enhanced the applicability of RS in probing the intricate molecular signatures within biological fluids, offering new insights into disease pathology. This review explores the growing role of RS as a promising and emerging tool for disease diagnosis in brain disorders, particularly through the analysis of liquid biopsy. It discusses the current landscape and future prospects of RS in the diagnosis of brain disorders, highlighting its potential as a non-invasive and molecularly specific diagnostic tool.
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Affiliation(s)
- Jeewan C Ranasinghe
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA.
| | - Ziyang Wang
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA.
| | - Shengxi Huang
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA.
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2
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Meyer N, Torrent J, Balme S. Characterizing Prion-Like Protein Aggregation: Emerging Nanopore-Based Approaches. SMALL METHODS 2024:e2400058. [PMID: 38644684 DOI: 10.1002/smtd.202400058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/10/2024] [Indexed: 04/23/2024]
Abstract
Prion-like protein aggregation is characteristic of numerous neurodegenerative diseases, such as Alzheimer's and Parkinson's diseases. This process involves the formation of aggregates ranging from small and potentially neurotoxic oligomers to highly structured self-propagating amyloid fibrils. Various approaches are used to study protein aggregation, but they do not always provide continuous information on the polymorphic, transient, and heterogeneous species formed. This review provides an updated state-of-the-art approach to the detection and characterization of a wide range of protein aggregates using nanopore technology. For each type of nanopore, biological, solid-state polymer, and nanopipette, discuss the main achievements for the detection of protein aggregates as well as the significant contributions to the understanding of protein aggregation and diagnostics.
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Affiliation(s)
- Nathan Meyer
- Institut Européen des Membranes, UMR5635 University of Montpellier ENCSM CNRS, Place Eugène Bataillon, Cedex 5, Montpellier, 34095, France
- INM, University of Montpellier, INSERM, Montpellier, 34095, France
| | - Joan Torrent
- INM, University of Montpellier, INSERM, Montpellier, 34095, France
| | - Sébastien Balme
- Institut Européen des Membranes, UMR5635 University of Montpellier ENCSM CNRS, Place Eugène Bataillon, Cedex 5, Montpellier, 34095, France
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3
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Ranasinghe JC, Wang Z, Huang S. Raman Spectroscopy on Brain Disorders: Transition from Fundamental Research to Clinical Applications. BIOSENSORS 2022; 13:27. [PMID: 36671862 PMCID: PMC9855372 DOI: 10.3390/bios13010027] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/13/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Brain disorders such as brain tumors and neurodegenerative diseases (NDs) are accompanied by chemical alterations in the tissues. Early diagnosis of these diseases will provide key benefits for patients and opportunities for preventive treatments. To detect these sophisticated diseases, various imaging modalities have been developed such as computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET). However, they provide inadequate molecule-specific information. In comparison, Raman spectroscopy (RS) is an analytical tool that provides rich information about molecular fingerprints. It is also inexpensive and rapid compared to CT, MRI, and PET. While intrinsic RS suffers from low yield, in recent years, through the adoption of Raman enhancement technologies and advanced data analysis approaches, RS has undergone significant advancements in its ability to probe biological tissues, including the brain. This review discusses recent clinical and biomedical applications of RS and related techniques applicable to brain tumors and NDs.
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4
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Foti A, Venkatesan S, Lebental B, Zucchi G, Ossikovski R. Comparing Commercial Metal-Coated AFM Tips and Home-Made Bulk Gold Tips for Tip-Enhanced Raman Spectroscopy of Polymer Functionalized Multiwalled Carbon Nanotubes. NANOMATERIALS 2022; 12:nano12030451. [PMID: 35159798 PMCID: PMC8840094 DOI: 10.3390/nano12030451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/20/2022] [Accepted: 01/25/2022] [Indexed: 02/04/2023]
Abstract
Tip-enhanced Raman spectroscopy (TERS) combines the high specificity and sensitivity of plasmon-enhanced Raman spectroscopy with the high spatial resolution of scanning probe microscopy. TERS has gained a lot of attention from many nanoscience fields, since this technique can provide chemical and structural information of surfaces and interfaces with nanometric spatial resolution. Multiwalled carbon nanotubes (MWCNTs) are very versatile nanostructures that can be dispersed in organic solvents or polymeric matrices, giving rise to new nanocomposite materials, showing improved mechanical, electrical and thermal properties. Moreover, MWCNTs can be easily functionalized with polymers in order to be employed as specific chemical sensors. In this context, TERS is strategic, since it can provide useful information on the cooperation of the two components at the nanoscale for the optimization of the macroscopic properties of the hybrid material. Nevertheless, efficient TERS characterization relies on the geometrical features and material composition of the plasmonic tip used. In this work, after comparing the TERS performance of commercial Ag coated nanotips and home-made bulk Au tips on bare MWCNTs, we show how TERS can be exploited for characterizing MWCNTs mixed with conjugated fluorene copolymers, thus contributing to the understanding of the polymer/CNT interaction process at the local scale.
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Affiliation(s)
- Antonino Foti
- CNR—IPCF, Istituto per I Processi Chimico-Fisici, Viale F. Stagno d’Alcontres 37, 98158 Messina, Italy
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
- Correspondence: (A.F.); (R.O.)
| | - Suriya Venkatesan
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
| | - Bérengère Lebental
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
- COSYS-LISIS, Université Gustave Eiffel, IFSTTAR, 77454 Marne-la-Vallée, France
| | - Gaël Zucchi
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
| | - Razvigor Ossikovski
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
- Correspondence: (A.F.); (R.O.)
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5
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Lipiec E, Kaderli J, Kobierski J, Riek R, Skirlińska-Nosek K, Sofińska K, Szymoński M, Zenobi R. Nanoscale Hyperspectral Imaging of Amyloid Secondary Structures in Liquid. Angew Chem Int Ed Engl 2021; 60:4545-4550. [PMID: 32964527 DOI: 10.1002/anie.202010331] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Indexed: 12/27/2022]
Abstract
Abnormal aggregation of amyloid-β is a very complex and heterogeneous process. Owing to methodological limitations, the aggregation pathway is still not fully understood. Herein a new approach is presented in which the secondary structure of single amyloid-β aggregates is investigated with tip-enhanced Raman spectroscopy (TERS) in a liquid environment. Clearly resolved TERS signatures of the amide I and amide III bands enabled a detailed analysis of the molecular structure of single aggregates at each phase of the primary aggregation of amyloid-β and also of small species on the surface of fibrils attributed to secondary nucleation. Notably, a β-sheet rearrangement from antiparallel in protofibrils to parallel in fibrils is observed. This study allows better understanding of Alzheimer's disease etiology and the methodology can be applied in studies of other neurodegenerative disorders.
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Affiliation(s)
- Ewelina Lipiec
- M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland.,Department of Chemistry and Applied Biosciences, ETH Zurich, 8093, Zurich, Switzerland.,The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, 31-342, Krakow, Poland
| | - Janina Kaderli
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093, Zurich, Switzerland
| | - Jan Kobierski
- Department of Pharmaceutical Biophysics, Faculty of Pharmacy, Jagiellonian University Medical College, 31-007, Kraków, Poland
| | - Roland Riek
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093, Zurich, Switzerland
| | | | - Kamila Sofińska
- M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Marek Szymoński
- M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093, Zurich, Switzerland
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6
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Lipiec E, Kaderli J, Kobierski J, Riek R, Skirlińska‐Nosek K, Sofińska K, Szymoński M, Zenobi R. Nanoscale Hyperspectral Imaging of Amyloid Secondary Structures in Liquid. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ewelina Lipiec
- M. Smoluchowski Institute of Physics Jagiellonian University Łojasiewicza 11 30-348 Kraków Poland
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
- The Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences 31-342 Krakow Poland
| | - Janina Kaderli
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
| | - Jan Kobierski
- Department of Pharmaceutical Biophysics Faculty of Pharmacy Jagiellonian University Medical College 31-007 Kraków Poland
| | - Roland Riek
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
| | | | - Kamila Sofińska
- M. Smoluchowski Institute of Physics Jagiellonian University Łojasiewicza 11 30-348 Kraków Poland
| | - Marek Szymoński
- M. Smoluchowski Institute of Physics Jagiellonian University Łojasiewicza 11 30-348 Kraków Poland
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
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7
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Rizevsky S, Kurouski D. Nanoscale Structural Organization of Insulin Fibril Polymorphs Revealed by Atomic Force Microscopy–Infrared Spectroscopy (AFM‐IR). Chembiochem 2019; 21:481-485. [DOI: 10.1002/cbic.201900394] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Stanislav Rizevsky
- Department of Biochemistry and BiophysicsTexas A&M University College Station TX 77843 US
- Department of BiotechnologyBinh Duong University Thu Dau Mot 820000 Vietnam
| | - Dmitry Kurouski
- Department of Biochemistry and BiophysicsTexas A&M University College Station TX 77843 US
- The Institute for Quantum Science and EngineeringTexas A&M University College Station TX 77843 US
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8
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Talaga D, Smeralda W, Lescos L, Hunel J, Lepejova-Caudy N, Cullin C, Bonhommeau S, Lecomte S. PIP2
Phospholipid-Induced Aggregation of Tau Filaments Probed by Tip-Enhanced Raman Spectroscopy. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David Talaga
- ISM, CNRS UMR 5255; Univ. Bordeaux; 33400 Talence France
| | - Willy Smeralda
- CBMN, CNRS UMR 5248; Univ. Bordeaux; 33600 Pessac France
| | - Laurie Lescos
- ISM, CNRS UMR 5255; Univ. Bordeaux; 33400 Talence France
| | - Julien Hunel
- ISM, CNRS UMR 5255; Univ. Bordeaux; 33400 Talence France
| | | | | | | | - Sophie Lecomte
- CBMN, CNRS UMR 5248; Univ. Bordeaux; 33600 Pessac France
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9
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Talaga D, Smeralda W, Lescos L, Hunel J, Lepejova-Caudy N, Cullin C, Bonhommeau S, Lecomte S. PIP 2 Phospholipid-Induced Aggregation of Tau Filaments Probed by Tip-Enhanced Raman Spectroscopy. Angew Chem Int Ed Engl 2018; 57:15738-15742. [PMID: 30278104 DOI: 10.1002/anie.201809636] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Indexed: 12/18/2022]
Abstract
The morphology and secondary structure of peptide fibers formed by aggregation of tubulin-associated unit (Tau) fragments (K18), in the presence of the inner cytoplasmic membrane phosphatidylinositol component (PIP2 ) or heparin sodium (HS) as cofactors, are determined with nanoscale (<10 nm) spatial resolution. By means of tip-enhanced Raman spectroscopy (TERS), the inclusion of PIP2 lipids in fibers is determined based on the observation of specific C=O ester vibration modes. Moreover, analysis of amide I and amide III bands suggests that the parallel β-sheet secondary structure content is lower and the random coil content is higher for fibers grown from the PIP2 cofactor instead of HS. These observations highlight the occurrence of some local structural differences between these fibers. This study constitutes the first nanoscale structural characterization of Tau/phospholipid aggregates, which are implicated in deleterious mechanisms on neural membranes in Alzheimer's disease.
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Affiliation(s)
- David Talaga
- ISM, CNRS UMR 5255, Univ. Bordeaux, 33400, Talence, France
| | - Willy Smeralda
- CBMN, CNRS UMR 5248, Univ. Bordeaux, 33600, Pessac, France
| | - Laurie Lescos
- ISM, CNRS UMR 5255, Univ. Bordeaux, 33400, Talence, France
| | - Julien Hunel
- ISM, CNRS UMR 5255, Univ. Bordeaux, 33400, Talence, France
| | | | | | | | - Sophie Lecomte
- CBMN, CNRS UMR 5248, Univ. Bordeaux, 33600, Pessac, France
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10
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Lipiec E, Perez‐Guaita D, Kaderli J, Wood BR, Zenobi R. Direct Nanospectroscopic Verification of the Amyloid Aggregation Pathway. Angew Chem Int Ed Engl 2018; 57:8519-8524. [DOI: 10.1002/anie.201803234] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/22/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Ewelina Lipiec
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
- The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences 31-342 Krakow Poland
- Centre for Biospectroscopy and School of Chemistry Monash University 3800 Victoria Australia
| | - David Perez‐Guaita
- Centre for Biospectroscopy and School of Chemistry Monash University 3800 Victoria Australia
| | - Janina Kaderli
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
| | - Bayden R. Wood
- Centre for Biospectroscopy and School of Chemistry Monash University 3800 Victoria Australia
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
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11
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Lipiec E, Perez‐Guaita D, Kaderli J, Wood BR, Zenobi R. Direct Nanospectroscopic Verification of the Amyloid Aggregation Pathway. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803234] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ewelina Lipiec
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
- The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences 31-342 Krakow Poland
- Centre for Biospectroscopy and School of Chemistry Monash University 3800 Victoria Australia
| | - David Perez‐Guaita
- Centre for Biospectroscopy and School of Chemistry Monash University 3800 Victoria Australia
| | - Janina Kaderli
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
| | - Bayden R. Wood
- Centre for Biospectroscopy and School of Chemistry Monash University 3800 Victoria Australia
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences ETH Zurich 8093 Zurich Switzerland
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12
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Meyer R, Yao X, Deckert V. Latest instrumental developments and bioanalytical applications in tip-enhanced Raman spectroscopy. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.02.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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13
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Bonhommeau S, Lecomte S. Tip-Enhanced Raman Spectroscopy: A Tool for Nanoscale Chemical and Structural Characterization of Biomolecules. Chemphyschem 2017; 19:8-18. [DOI: 10.1002/cphc.201701067] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/04/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Sébastien Bonhommeau
- University of Bordeaux; Institut des Sciences Moléculaires; CNRS UMR 5255; 351 cours de la Libération 33405 Talence cedex France
| | - Sophie Lecomte
- University of Bordeaux; Institut de Chimie et Biologie des Membranes et des Nano-objets; CNRS UMR 5248; Allée Geoffroy Saint Hilaire 33600 Pessac France
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14
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Qian Z, Zhang Q, Liu Y, Chen P. Assemblies of amyloid-β30-36 hexamer and its G33V/L34T mutants by replica-exchange molecular dynamics simulation. PLoS One 2017; 12:e0188794. [PMID: 29186195 PMCID: PMC5706729 DOI: 10.1371/journal.pone.0188794] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 11/13/2017] [Indexed: 02/02/2023] Open
Abstract
The aggregation of amyloid-β peptides is associated with the pathogenesis of Alzheimer’s disease, in which the 30–36 fragments play an important part as a fiber-forming hydrophobic region. The fibrillar structure of Aβ30–36 has been detected by means of X-ray diffraction, but its oligomeric structural determination, biophysical characterization, and pathological mechanism remain elusive. In this study, we have investigated the structures of Aβ30–36 hexamer as well as its G33V and L34T mutants in explicit water environment using replica-exchange molecular dynamics (REMD) simulations. Our results show that the wild-type (WT) Aβ30–36 hexamer has a preference to form β-barrel and bilayer β-sheet conformations, while the G33V or L34T mutation disrupts the β-barrel structures: the G33V mutant is homogenized to adopt β-sheet-rich bilayers, and the structures of L34T mutant on the contrary get more diverse. The hydrophobic interaction plays a critical role in the formation and stability of oligomeric assemblies among all the three systems. In addition, the substitution of G33 by V reduces the β-sheet content in the most populated conformations of Aβ30–36 oligomers through a steric effect. The L34T mutation disturbs the interpeptide hydrogen bonding network, and results in the increased coil content and morphological diversity. Our REMD runs provide structural details of WT and G33V/L34T mutant Aβ30–36 oligomers, and molecular insight into the aggregation mechanism, which will be helpful for designing novel inhibitors or amyloid-based materials.
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Affiliation(s)
- Zhenyu Qian
- Key Laboratory of Exercise and Health Sciences (Ministry of Education) and School of Kinesiology, Shanghai University of Sport, Shanghai, China
- * E-mail: (ZQ); (PC)
| | - Qingwen Zhang
- College of Physical Education and Training, Shanghai University of Sport, Shanghai, China
| | - Yu Liu
- Key Laboratory of Exercise and Health Sciences (Ministry of Education) and School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Peijie Chen
- Key Laboratory of Exercise and Health Sciences (Ministry of Education) and School of Kinesiology, Shanghai University of Sport, Shanghai, China
- * E-mail: (ZQ); (PC)
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15
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Zheng Y, Wang Q, Yang X, Li Z, Gao L, Zhang H, Nie W, Geng X, Wang K. Investigation of the interactions between aptamer and misfolded proteins: From monomer and oligomer to fibril by single-molecule force spectroscopy. J Mol Recognit 2017; 31. [PMID: 29143447 DOI: 10.1002/jmr.2686] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 10/10/2017] [Accepted: 10/19/2017] [Indexed: 12/13/2022]
Abstract
Increasing knowledge on the understanding interactions of aptamer with misfolded proteins (including monomer, oligomer, and amyloid fibril) is crucial for development of aggregation inhibitors and diagnosis of amyloid diseases. Herein, the interactions of lysozyme monomer-, oligomer-, and amyloid fibril-aptamer were investigated using single-molecule force spectroscopy. The results revealed that the aptamer screened against lysozyme monomer could also bind to oligomer and amyloid fibril, in spite of the recognition at a lower binding probability. It may be attributed to the inherent structural differences of misfolded proteins and the flexible conformation of aptamer. In addition, dynamic force spectra showed that there were similar dissociation paths in the dissociation process of lysozyme monomer-, oligomer-, and amyloid fibril-aptamer complexes. It showed that the dissociation only passed 1 energy barrier from the binding state to the detachment. However, the dynamic parameters suggested that the oligomer- and amyloid fibril-aptamer were more stable than lysozyme monomer-aptamer. The phenomena may result from the exposure of aptamer-recognized sequences on the surface and the electrostatic interactions. This work demonstrated that single-molecule force spectroscopy could be a powerful tool to study the binding behavior of the aptamer with misfolded proteins at single-molecule level, providing abundant information for researches and comprehensive applications of aptamer probes in diagnosis of amyloid diseases.
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Affiliation(s)
- Yan Zheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, China
| | - Qing Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, China
| | - Xiaohai Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, China
| | - Zhiping Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, China
| | - Lei Gao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, China
| | - Hua Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, China
| | - Wenyan Nie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, China
| | - Xiuhua Geng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, China
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16
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Handschuh-Wang S, Wang T, Zhou X. Recent advances in hybrid measurement methods based on atomic force microscopy and surface sensitive measurement techniques. RSC Adv 2017. [DOI: 10.1039/c7ra08515j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
This review summaries the recent progress of the combination of optical and non-optical surface sensitive techniques with the atomic force microscopy.
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Affiliation(s)
- Stephan Handschuh-Wang
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen 518060
- P. R. China
| | - Tao Wang
- Functional Thin Films Research Center
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen 518055
- P. R. China
| | - Xuechang Zhou
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen 518060
- P. R. China
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