1
|
Stehle J, Hülsmann M, Godt A, Drescher M, Azarkh M. Evaluation of Copper(II) Transfer between Amyloid-beta Peptides by Relaxation-Induced Dipolar Modulation Enhancement (RIDME). Chemphyschem 2024; 25:e202300928. [PMID: 38285014 DOI: 10.1002/cphc.202300928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 01/30/2024]
Abstract
In the brains of Alzheimer's disease patients, fibrillar aggregates containing amyloid-beta (Aβ) peptides are found, along with elevated concentrations of Cu(II) ions. The aggregation pathways of Aβ peptides can be modulated by Cu(II) ions and is determined by the formation and nature of the Cu(II)-Aβ complex. If spin-labeled, the Cu(II)-Aβ complex contains two dipolar coupled paramagnetic centers, the spin label and the Cu(II) ion. Measurement of the dipolar coupling between these paramagnetic centers by relaxation-induced dipolar modulation enhancement (RIDME) allows to monitor the complex formation and thus opens a way to follow the Cu(II) transfer between peptides if a mixture of wild-type and spin-labeled ones is used. We evaluate this approach for a specific Cu(II)-Aβ complex, the aggregation-inert Component II. The kinetics of the Cu(II) transfer can be resolved by performing RIDME in a time-dependent manner. A temporal resolution of seconds has been achieved, with the potential to reach milliseconds, using a rapid-freeze quench device to stop the Cu(II) transfer in solution after defined incubation times.
Collapse
Affiliation(s)
- Juliane Stehle
- Department of Chemistry and Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstr. 10, 78457, Konstanz, Germany
| | - Miriam Hülsmann
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Adelheid Godt
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Malte Drescher
- Department of Chemistry and Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstr. 10, 78457, Konstanz, Germany
| | - Mykhailo Azarkh
- Department of Chemistry and Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstr. 10, 78457, Konstanz, Germany
| |
Collapse
|
2
|
Tahirbegi B, Magness AJ, Piersimoni ME, Teng X, Hooper J, Guo Y, Knöpfel T, Willison KR, Klug DR, Ying L. Toward high-throughput oligomer detection and classification for early-stage aggregation of amyloidogenic protein. Front Chem 2022; 10:967882. [PMID: 36110142 PMCID: PMC9468268 DOI: 10.3389/fchem.2022.967882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 07/28/2022] [Indexed: 12/01/2022] Open
Abstract
Aggregation kinetics of proteins and peptides have been studied extensively due to their significance in many human diseases, including neurodegenerative disorders, and the roles they play in some key physiological processes. However, most of these studies have been performed as bulk measurements using Thioflavin T or other fluorescence turn-on reagents as indicators of fibrillization. Such techniques are highly successful in making inferences about the nucleation and growth mechanism of fibrils, yet cannot directly measure assembly reactions at low protein concentrations which is the case for amyloid-β (Aβ) peptide under physiological conditions. In particular, the evolution from monomer to low-order oligomer in early stages of aggregation cannot be detected. Single-molecule methods allow direct access to such fundamental information. We developed a high-throughput protocol for single-molecule photobleaching experiments using an automated fluorescence microscope. Stepwise photobleaching analysis of the time profiles of individual foci allowed us to determine stoichiometry of protein oligomers and probe protein aggregation kinetics. Furthermore, we investigated the potential application of supervised machine learning with support vector machines (SVMs) as well as multilayer perceptron (MLP) artificial neural networks to classify bleaching traces into stoichiometric categories based on an ensemble of measurable quantities derivable from individual traces. Both SVM and MLP models achieved a comparable accuracy of more than 80% against simulated traces up to 19-mer, although MLP offered considerable speed advantages, thus making it suitable for application to high-throughput experimental data. We used our high-throughput method to study the aggregation of Aβ40 in the presence of metal ions and the aggregation of α-synuclein in the presence of gold nanoparticles.
Collapse
Affiliation(s)
- Bogachan Tahirbegi
- Department of Chemistry, Imperial College London, London, United Kingdom
| | - Alastair J. Magness
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | | | - Xiangyu Teng
- Department of Chemistry, Imperial College London, London, United Kingdom
| | - James Hooper
- School of Food Science and Nutrition and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom
| | - Yuan Guo
- School of Food Science and Nutrition and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom
| | - Thomas Knöpfel
- Department of Brain Sciences, Imperial College London, London, United Kingdom
| | - Keith R. Willison
- Department of Chemistry, Imperial College London, London, United Kingdom
| | - David R. Klug
- Department of Chemistry, Imperial College London, London, United Kingdom
| | - Liming Ying
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- *Correspondence: Liming Ying,
| |
Collapse
|
3
|
Kotuniak R, Bal W. Kinetics of Cu(II) complexation by ATCUN/NTS and related peptides: a gold mine of novel ideas for copper biology. Dalton Trans 2021; 51:14-26. [PMID: 34816848 DOI: 10.1039/d1dt02878b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cu(II)-peptide complexes are intensely studied as models for biological peptides and proteins and for their direct importance in copper homeostasis and dyshomeostasis in human diseases. In particular, high-affinity ATCUN/NTS (amino-terminal copper and nickel/N-terminal site) motifs present in proteins and peptides are considered as Cu(II) transport agents for copper delivery to cells. The information on the affinities and structures of such complexes derived from steady-state methods appears to be insufficient to resolve the mechanisms of copper trafficking, while kinetic studies have recently shown promise in explaining them. Stopped-flow experiments of Cu(II) complexation to ATCUN/NTS peptides revealed the presence of reaction steps with rates much slower than the diffusion limit due to the formation of novel intermediate species. Herein, the state of the field in Cu(II)-peptide kinetics is reviewed in the context of physiological data, leading to novel ideas in copper biology, together with the discussion of current methodological issues.
Collapse
Affiliation(s)
- Radosław Kotuniak
- Institute of Biochemistry and Biophysics, Polish Academy of Science, Pawińskiego 5a, 02-106 Warsaw, Poland.
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics, Polish Academy of Science, Pawińskiego 5a, 02-106 Warsaw, Poland.
| |
Collapse
|
4
|
Teng X, Sheveleva A, Tuna F, Willison KR, Ying L. Acetylation Rather than H50Q Mutation Impacts the Kinetics of Cu(II) Binding to α-Synuclein. Chemphyschem 2021; 22:2413-2419. [PMID: 34617653 PMCID: PMC9293329 DOI: 10.1002/cphc.202100651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/02/2021] [Indexed: 11/10/2022]
Abstract
The interaction between α‐synuclein (αSyn) and Cu2+ has been suggested to be closely linked to brain copper homeostasis. Disruption of copper levels could induce misfolding and aggregation of αSyn, and thus contribute to the progression of Parkinson's disease (PD). Understanding the molecular mechanism of αSyn‐Cu2+ interaction is important and controversies in Cu2+ coordination geometry with αSyn still exists. Herein, we find that the pathological H50Q mutation has no impact on the kinetics of Cu2+ binding to the high‐affinity site of wild type αSyn (WT‐αSyn), indicating the non‐involvement of His50 in high‐affinity Cu2+ binding to WT‐αSyn. In contrast, the physiological N‐terminally acetylated αSyn (NAc‐αSyn) displays several orders of magnitude weaker Cu2+ binding affinity than WT‐αSyn. Cu2+ coordination mode to NAc‐αSyn has also been proposed based on EPR spectrum. In addition, we find that Cu2+ coordinated WT‐αSyn is reduction‐active in the presence of GSH, but essentially inactive towards ascorbate. Our work provides new insights into αSyn‐Cu2+ interaction, which may help understand the multifaceted normal functions of αSyn as well as pathological consequences of αSyn aggregation.
Collapse
Affiliation(s)
- Xiangyu Teng
- Department of Chemistry, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Alena Sheveleva
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Floriana Tuna
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Keith R Willison
- Department of Chemistry, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Liming Ying
- National Heart and Lung Institute, Imperial College London, White City Campus, London, W12 0BZ, UK
| |
Collapse
|
5
|
Gaglione R, Smaldone G, Cesaro A, Rumolo M, De Luca M, Di Girolamo R, Petraccone L, Del Vecchio P, Oliva R, Notomista E, Pedone E, Arciello A. Impact of a Single Point Mutation on the Antimicrobial and Fibrillogenic Properties of Cryptides from Human Apolipoprotein B. Pharmaceuticals (Basel) 2021; 14:ph14070631. [PMID: 34209895 PMCID: PMC8308739 DOI: 10.3390/ph14070631] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 12/21/2022] Open
Abstract
Host defense peptides (HDPs) are gaining increasing interest, since they are endowed with multiple activities, are often effective on multidrug resistant bacteria and do not generally lead to the development of resistance phenotypes. Cryptic HDPs have been recently identified in human apolipoprotein B and found to be endowed with a broad-spectrum antimicrobial activity, with anti-biofilm, wound healing and immunomodulatory properties, and with the ability to synergistically act in combination with conventional antibiotics, while being not toxic for eukaryotic cells. Here, a multidisciplinary approach was used, including time killing curves, differential scanning calorimetry, circular dichroism, ThT binding assays, and transmission electron microscopy analyses. The effects of a single point mutation (Pro → Ala in position 7) on the biological properties of ApoB-derived peptide r(P)ApoBLPro have been evaluated. Although the two versions of the peptide share similar antimicrobial and anti-biofilm properties, only r(P)ApoBLAla peptide was found to exert bactericidal effects. Interestingly, antimicrobial activity of both peptide versions appears to be dependent from their interaction with specific components of bacterial surfaces, such as LPS or LTA, which induce peptides to form β-sheet-rich amyloid-like structures. Altogether, obtained data indicate a correlation between ApoB-derived peptides self-assembling state and their antibacterial activity.
Collapse
Affiliation(s)
- Rosa Gaglione
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
- Istituto Nazionale di Biostrutture e Biosistemi (INBB), 00136 Rome, Italy
| | | | - Angela Cesaro
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Mariano Rumolo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Maria De Luca
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Luigi Petraccone
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Pompea Del Vecchio
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Rosario Oliva
- Physical Chemistry I—Biophysical Chemistry, Faculty of Chemistry and Chemical Biology, TU Dortmund University, 44227 Dortmund, Germany;
| | - Eugenio Notomista
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy;
| | - Emilia Pedone
- Istituto di Biostrutture e Bioimmagini, CNR, 80134 Naples, Italy;
- Research Centre on Bioactive Peptides (CIRPeB), University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy
| | - Angela Arciello
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
- Istituto Nazionale di Biostrutture e Biosistemi (INBB), 00136 Rome, Italy
- Correspondence: ; Tel.: +39-081-679147
| |
Collapse
|
6
|
Beuning CN, Zocchi LJ, Malikidogo KP, Esmieu C, Dorlet P, Crans DC, Hureau C. Measurement of Interpeptidic Cu II Exchange Rate Constants of Cu II-Amyloid-β Complexes to Small Peptide Motifs by Tryptophan Fluorescence Quenching. Inorg Chem 2021; 60:7650-7659. [PMID: 33983723 DOI: 10.1021/acs.inorgchem.0c03555] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The interpeptidic CuII exchange rate constants were measured for two Cu amyloid-β complexes, Cu(Aβ1-16) and Cu(Aβ1-28), to fluorescent peptides GHW and DAHW using a quantitative tryptophan fluorescence quenching methodology. The second-order rate constants were determined at three pH values (6.8, 7.4, and 8.7) important to the two Cu(Aβ) coordination complexes, components Cu(Aβ)I and Cu(Aβ)II. The interpeptidic CuII exchange rate constant is approximately 104 M-1 s-1 but varies in magnitude depending on many variables. These include pH, length of the Aβ peptide, location of the anchoring histidine ligand in the fluorescent peptide, number of amide deprotonations required in the tryptophan peptide to coordinate CuII, and interconversion between Cu(Aβ)I and Cu(Aβ)II. We also present EPR data probing the CuII exchange between peptides and the formation of ternary species between Cu(Aβ) and GHW. As the nonfluorescent GHK and DAHK peptides are important motifs found in the blood and serum, their ability to sequester CuII ions from Cu(Aβ) complexes may be relevant for the metal homeostasis and its implication in Alzheimer's disease. Thus, their kinetic CuII interpeptidic exchange rate constants are important chemical rate constants that can help elucidate the complex CuII trafficking puzzle in the synaptic cleft.
Collapse
Affiliation(s)
- Cheryle N Beuning
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Luca J Zocchi
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | | | | | - Pierre Dorlet
- CNRS, Aix-Marseille Université, Laboratoire de Bioénergétique et Ingénierie des Protéines, IMM, 13400 Marseille, France
| | - Debbie C Crans
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | | |
Collapse
|
7
|
Niu Y, Ding T, Liu J, Zhang G, Tong L, Cheng X, Yang Y, Chen Z, Tang B. Fluorescence switch of gold nanoclusters stabilized with bovine serum albumin for efficient and sensitive detection of cysteine and copper ion in mice with Alzheimer's disease. Talanta 2021; 223:121745. [PMID: 33298269 DOI: 10.1016/j.talanta.2020.121745] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/25/2020] [Accepted: 10/04/2020] [Indexed: 12/20/2022]
Abstract
The near-infrared fluorescence of gold nanoclusters stabilized with bovine serum albumin (BSA -AuNCs) centered at 675 nm could be enhanced by cysteine and then effectively quenched by copper ion (Cu2+), therefore, cysteine and copper ion could be detected in sequence. At "on" state, fluorescence enhancement of BSA-AuNCs is generated due to the reaction between cysteine and BSA-AuNCs, via filling the surface defect of gold nanoclusters, while Cu2+ can further oxidize the reductive sulfydryl of cysteine and interact with amino acids presented in the BSA chain, inducing gold nanoclusters to aggregate, thus causing "off" state with fluorescence quenching. Fluorescence switch of BSA-AuNCs can be used for cysteine and Cu2+ detection in mice brain with Alzheimer's disease (AD) in vitro, with fast response, high chemical stability and sensitivity. Besides, it was able to image the endogenous Cu2+ in liver and heart of AD mice in situ. The results are promising, especially in the framework of early diagnosis of Alzheimer's disease.
Collapse
Affiliation(s)
- Yaxin Niu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, PR China
| | - Tong Ding
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, PR China
| | - Junmin Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, PR China
| | - Guanglu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, PR China
| | - Lili Tong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, PR China
| | - Xiufen Cheng
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, PR China
| | - Yanmei Yang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, PR China
| | - Zhenzhen Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, PR China.
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, PR China
| |
Collapse
|
8
|
Xu S, Wang W, Dong X, Sun Y. Molecular Insight into Cu 2+-Induced Conformational Transitions of Amyloid β-Protein from Fast Kinetic Analysis and Molecular Dynamics Simulations. ACS Chem Neurosci 2021; 12:300-310. [PMID: 33401892 DOI: 10.1021/acschemneuro.0c00502] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cu2+-mediated amyloid β-protein (Aβ) aggregation is implicated in the pathogenesis of Alzheimer's disease, so it is of significance to understand Cu2+-mediated conformational transitions of Aβ. Herein, four Aβ mutants were created by using the environment-sensitive cyanophenylalanine to respectively substitute F4, Y10, F19, and F20 residues of Aβ40. By using stopped-flow fluorescence spectroscopy and molecular dynamics (MD) simulations, the early stage conformational transitions of the mutants mediated by Cu2+ binding were investigated. The fast kinetics unveils that Cu2+ has more significant influence on the conformational changes of N-terminal (F4 and Y10) than on the central hydrophobic core (CHC, F19, and F20) under different pH conditions (pH 6.6-8.0), especially Y10. Interestingly, lag periods of the conformational transitions are observed for the F19 and F20 mutants at pH 8.0, indicating the slow response of the two mutation sites on the conformational transitions. More importantly, significantly longer lag periods for F20 than for F19 indicate the conduction of the transition from F19 to F20. The conduction time (difference in lag period) decreases from 4.5 s at Cu2+ = 0 to undetectable (<1 ms) at Cu2+ = 10 μM. The significant difference in the response time of F19 and F20 and the fast local conformational changes of Y10 imply that the conformational transitions of Aβ start around Y10. MD simulations support the observation of hydrophobicity increase at N-terminal during the conformational transitions of Aβ-Cu2+. It also reveals that Y10 is immediately approached by Cu2+, supporting the speculation that the starting point of conformational transitions of Aβ is near Y10. The work has provided molecular insight into the early stage conformational transitions of Aβ40 mediated by Cu2+.
Collapse
Affiliation(s)
- Shaoying Xu
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Wenjuan Wang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Xiaoyan Dong
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Key Laboratory of Systems Bioengineering and Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin 300350, China
| | - Yan Sun
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Key Laboratory of Systems Bioengineering and Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin 300350, China
| |
Collapse
|
9
|
The Aggregation Pattern of Aβ
1–40
is Altered by the Presence of
N
‐Truncated Aβ
4–40
and/or Cu
II
in a Similar Way through Ionic Interactions. Chemistry 2021; 27:2798-2809. [DOI: 10.1002/chem.202004484] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Indexed: 12/19/2022]
|
10
|
Development of a colorimetric and fluorescent Cu2+ ion probe based on 2′-hydroxy-2,4-diaminoazobenzene and its application in real water sample and living cells. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119583] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
11
|
Alghamdi A, Wellbrock T, Birch DJS, Vyshemirsky V, Rolinski OJ. Cu 2+ Effects on Beta-Amyloid Oligomerisation Monitored by the Fluorescence of Intrinsic Tyrosine. Chemphyschem 2019; 20:3181-3185. [PMID: 31539190 DOI: 10.1002/cphc.201900565] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 09/02/2019] [Indexed: 12/26/2022]
Abstract
A non-invasive intrinsic fluorescence sensing of the early stages of Alzheimer's beta amyloid peptide aggregation in the presence of copper ions is reported. By using time-resolved fluorescence techniques the formation of beta amyloid-copper complexes and the accelerated peptide aggregation are demonstrated. The shifts in the emission spectral peaks indicate that the peptides exhibit different aggregation pathways than in the absence of copper.
Collapse
Affiliation(s)
- Abeer Alghamdi
- Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - Thorben Wellbrock
- Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - David J S Birch
- Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | | | - Olaf J Rolinski
- Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| |
Collapse
|
12
|
Effects of Cu(II) on the aggregation of amyloid-β. J Biol Inorg Chem 2019; 24:1197-1215. [PMID: 31602542 DOI: 10.1007/s00775-019-01727-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 10/01/2019] [Indexed: 12/27/2022]
Abstract
Aberrant aggregation of the Aβ protein is a hallmark of Alzheimer's disease (AD), but no complete characterization of the molecular level pathogenesis has been achieved. A promising hypothesis is that dysfunction of metal ion homeostasis, and consequently, the undesired interaction of metal ions with Aβ, may be central to the development of AD. Qualitatively, most data indicate that Cu(II) induces rapid self-assembly of both Aβ40 and Aβ42 during the initial phase of the aggregation, while at longer time scales fibrillation may occur, depending on the experimental conditions. For Aβ40 and Cu(II):Aβ ≤ 1, most data imply that low concentration of Aβ40 favors nucleation and rapid fibril elongation, while high concentration of Aβ40 favors formation of amorphous aggregates. However, there are conflicting reports on this issue. For Aβ42 and Cu(II):Aβ ≤ 1, there is consensus that the lag time is extended upon addition of Cu(II). For Cu(II):Aβ > 1, the lag time is increased upon interaction with Cu(II), and in most cases fibrillation is not observed, presumably because Cu(II) occupies a second more solvent-exposed binding site, which is more prone to form metal ion-bridged species and cause rapid formation of non-fibrillar aggregates. The interesting N-terminally truncated Aβ11-40 with high affinity for Cu(II), exhibits delay of fibrillation upon addition of 0.4 eq. Cu(II). In our view, there are still problems achieving reproducible results in this field, and we provide a shortlist of some of the pitfalls. Finally, we propose a consensus model for the effects of Cu(II) on the aggregation kinetics of Aβ.
Collapse
|
13
|
Wang S, Sheng Z, Yang Z, Hu D, Long X, Feng G, Liu Y, Yuan Z, Zhang J, Zheng H, Zhang X. Activatable Small‐Molecule Photoacoustic Probes that Cross the Blood–Brain Barrier for Visualization of Copper(II) in Mice with Alzheimer's Disease. Angew Chem Int Ed Engl 2019; 58:12415-12419. [DOI: 10.1002/anie.201904047] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/15/2019] [Indexed: 01/12/2023]
Affiliation(s)
- Shichao Wang
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| | - Zonghai Sheng
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Zhenguo Yang
- Affiliated Hospital of Guangdong Medical University Zhanjiang 524001 P. R. China
| | - Dehong Hu
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Xiaojing Long
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Gang Feng
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| | - Yubin Liu
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| | - Zhen Yuan
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| | - Jingjing Zhang
- Affiliated Hospital of Guangdong Medical University Zhanjiang 524001 P. R. China
| | - Hairong Zheng
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Xuanjun Zhang
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| |
Collapse
|
14
|
Wang S, Sheng Z, Yang Z, Hu D, Long X, Feng G, Liu Y, Yuan Z, Zhang J, Zheng H, Zhang X. Activatable Small‐Molecule Photoacoustic Probes that Cross the Blood–Brain Barrier for Visualization of Copper(II) in Mice with Alzheimer's Disease. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Shichao Wang
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| | - Zonghai Sheng
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Zhenguo Yang
- Affiliated Hospital of Guangdong Medical University Zhanjiang 524001 P. R. China
| | - Dehong Hu
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Xiaojing Long
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Gang Feng
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| | - Yubin Liu
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| | - Zhen Yuan
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| | - Jingjing Zhang
- Affiliated Hospital of Guangdong Medical University Zhanjiang 524001 P. R. China
| | - Hairong Zheng
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Xuanjun Zhang
- Cancer Centre and Centre of Reproduction, Development and AgingFaculty of Health SciencesUniversity of Macau Macau SAR P. R. China
| |
Collapse
|
15
|
Stefaniak E, Bal W. Cu II Binding Properties of N-Truncated Aβ Peptides: In Search of Biological Function. Inorg Chem 2019; 58:13561-13577. [PMID: 31304745 DOI: 10.1021/acs.inorgchem.9b01399] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
As life expectancy increases, the number of people affected by progressive and irreversible dementia, Alzheimer's Disease (AD), is predicted to grow. No drug designs seem to be working in humans, apparently because the origins of AD have not been identified. Invoking amyloid cascade, metal ions, and ROS production hypothesis of AD, herein we share our point of view on Cu(II) binding properties of Aβ4-x, the most prevalent N-truncated Aβ peptide, currently known as the main constituent of amyloid plaques. The capability of Aβ4-x to rapidly take over copper from previously tested Aβ1-x peptides and form highly stable complexes, redox unreactive and resistant to copper exchange reactions, prompted us to propose physiological roles for these peptides. We discuss the new findings on the reactivity of Cu(II)Aβ4-x with coexisting biomolecules in the context of synaptic cleft; we suggest that the role of Aβ4-x peptides is to quench Cu(II) toxicity in the brain and maintain neurotransmission.
Collapse
Affiliation(s)
- Ewelina Stefaniak
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences , Pawińskiego 5a , 02-106 Warsaw , Poland
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences , Pawińskiego 5a , 02-106 Warsaw , Poland
| |
Collapse
|
16
|
Esmieu C, Guettas D, Conte-Daban A, Sabater L, Faller P, Hureau C. Copper-Targeting Approaches in Alzheimer’s Disease: How To Improve the Fallouts Obtained from in Vitro Studies. Inorg Chem 2019; 58:13509-13527. [DOI: 10.1021/acs.inorgchem.9b00995] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | | | | | | | - Peter Faller
- LCC−CNRS, Université de Toulouse, CNRS, Toulouse, France
| | | |
Collapse
|
17
|
Feng S, Gao Q, Gao X, Yin J, Jiao Y. Fluorescent sensor for copper(II) ions based on coumarin derivative and its application in cell imaging. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.01.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
18
|
Visual colorimetric and fluorescence turn-on probe for Cu(II) ion based on coordination and catalyzed oxidative cyclization of ortho amino azobenzene. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.12.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
19
|
Lee HJ, Lee YG, Kang J, Yang SH, Kim JH, Ghisaidoobe ABT, Kang HJ, Lee SR, Lim MH, Chung SJ. Monitoring metal-amyloid-β complexation by a FRET-based probe: design, detection, and inhibitor screening. Chem Sci 2018; 10:1000-1007. [PMID: 30774894 PMCID: PMC6349019 DOI: 10.1039/c8sc04943b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 12/05/2018] [Indexed: 01/09/2023] Open
Abstract
A FRET-based method was developed for monitoring metal–amyloid-β complexation and identifying inhibitors against such interaction.
Aggregation of amyloidogenic peptides could cause the onset and progression of neurodegenerative diseases, such as Alzheimer's disease and Parkinson's disease. These amyloidogenic peptides can coordinate to metal ions, including Zn(ii), which can subsequently affect the peptides' aggregation and toxicity, leading to neurodegeneration. Unfortunately, the detection of metal–amyloidogenic peptide complexation has been very challenging. Herein, we report the development and utilization of a probe (A-1) capable of monitoring metal–amyloid-β (Aβ) complexation based on Förster resonance energy transfer (FRET). Our probe, A-1, is composed of Aβ1–21 grafted with a pair of FRET donor and acceptor capable of providing a FRET signal upon Zn(ii) binding even at nanomolar concentrations. The FRET intensity of A-1 increases upon Zn(ii) binding and decreases when Zn(ii)-bound A-1 aggregates. Moreover, as the FRET intensity of Zn(ii)-added A-1 is drastically changed when their interaction is disrupted, A-1 can be used for screening a chemical library to determine effective inhibitors against metal–Aβ interaction. Eight natural products (out of 145 compounds; >80% inhibition) were identified as such inhibitors in vitro, and six of them could reduce Zn(ii)–Aβ-induced toxicity in living cells, suggesting structural moieties useful for inhibitor design. Overall, we demonstrate the design of a FRET-based probe for investigating metal–amyloidogenic peptide complexation as well as the feasibility of screening inhibitors against metal-bound amyloidogenic peptides, providing effective and efficient methods for understanding their pathology and finding therapeutic candidates against neurodegenerative disorders.
Collapse
Affiliation(s)
- Hyuck Jin Lee
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea .
| | - Young Geun Lee
- Department of Chemistry , Dongguk University , Seoul 04620 , Republic of Korea .
| | - Juhye Kang
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea . .,Department of Chemistry , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Seung Hyun Yang
- Department of Chemistry , Dongguk University , Seoul 04620 , Republic of Korea .
| | - Ju Hwan Kim
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea .
| | - Amar B T Ghisaidoobe
- Department of Chemistry , Dongguk University , Seoul 04620 , Republic of Korea .
| | - Hyo Jin Kang
- Department of Chemistry , Dongguk University , Seoul 04620 , Republic of Korea .
| | - Sang-Rae Lee
- National Primate Research Center (NPRC) , Korea Research Institute of Biosience and Biotechnology , Cheongju , Chungbuk 28116 , Republic of Korea .
| | - Mi Hee Lim
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea .
| | - Sang J Chung
- Department of Chemistry , Dongguk University , Seoul 04620 , Republic of Korea . .,School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea .
| |
Collapse
|
20
|
Girvan P, Teng X, Brooks NJ, Baldwin GS, Ying L. Redox Kinetics of the Amyloid-β-Cu Complex and Its Biological Implications. Biochemistry 2018; 57:6228-6233. [DOI: 10.1021/acs.biochem.8b00133] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
21
|
Gonzalez P, Bossak K, Stefaniak E, Hureau C, Raibauta L, Balc W, Faller P. N-Terminal Cu-Binding Motifs (Xxx-Zzz-His, Xxx-His) and Their Derivatives: Chemistry, Biology and Medicinal Applications. Chemistry 2018; 24:8029-8041. [PMID: 29336493 PMCID: PMC6152890 DOI: 10.1002/chem.201705398] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Indexed: 12/28/2022]
Abstract
Peptides and proteins with N-terminal amino acid sequences NH2 -Xxx-His (XH) and NH2 -Xxx-Zzz-His (XZH) form well-established high-affinity CuII -complexes. Key examples are Asp-Ala-His (in serum albumin) and Gly-His-Lys, the wound healing factor. This opens a straightforward way to add a high-affinity CuII -binding site to almost any peptide or protein, by chemical or recombinant approaches. Thus, these motifs, NH2 -Xxx-Zzz-His in particular, have been used to equip peptides and proteins with a multitude of functions based on the redox activity of Cu, including nuclease, protease, glycosidase, or oxygen activation properties, useful in anticancer or antimicrobial drugs. More recent research suggests novel biological functions, mainly based on the redox inertness of CuII in XZH, like PET imaging (with 64 Cu), chelation therapies (for instance in Alzheimer's disease and other types of neurodegeneration), antioxidant units, Cu transporters and activation of biological functions by strong CuII binding. This Review gives an overview of the chemical properties of Cu-XH and -XZH motifs and discusses the pros and cons of the vastly different biological applications, and how they could be improved depending on the application.
Collapse
Affiliation(s)
- Paulina Gonzalez
- Institut de Chimie, UMR 7177,CNRS-Université de Strasbourg 4 rue Blaise Pascal, 67000, Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Karolina Bossak
- Institute of Biochemistry and Biophysics, dediPolish Academy of
Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Ewelina Stefaniak
- Institute of Biochemistry and Biophysics, dediPolish Academy of
Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Christelle Hureau
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
- CNRS; LCC (Laboratoire de Chimie de Coordination) 205, route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, UPS, INPT ; LCC; F-31077 Toulouse, France
| | - Laurent Raibauta
- Institut de Chimie, UMR 7177,CNRS-Université de Strasbourg 4 rue Blaise Pascal, 67000, Strasbourg, France
| | - Wojciech Balc
- Institute of Biochemistry and Biophysics, dediPolish Academy of
Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Peter Faller
- Institut de Chimie, UMR 7177,CNRS-Université de Strasbourg 4 rue Blaise Pascal, 67000, Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| |
Collapse
|
22
|
Ionic liquids in protein amyloidogenesis: a brief screenshot of the state-of-the-art. Biophys Rev 2018; 10:847-852. [PMID: 29725930 DOI: 10.1007/s12551-018-0425-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 04/17/2018] [Indexed: 01/02/2023] Open
Abstract
Ionic liquids (ILs) are a vast class of organic non-aqueous electrolytes whose interaction with biomolecules is receiving great attention for potential applications in bio-nano-technology. Recently, it has been shown that ILs can affect protein amyloidogenesis. Whereas some ILs favour the aggregation of proteins into amyloids, others inhibit their formation. Moreover, ILs can dissolve mature fibrils and restore the protein biochemical function. In this letter, we present a brief state-of-the-art summary of this emerging field that holds the promise of important developments both in basic science and in applications from bio-medicine to material science, and bio-nano-technology. The huge variety of ILs offers a vast playground for future studies and potential applications.
Collapse
|
23
|
Jung SR, Lee SW, Hohng S. Real-Time Monitoring of the Binding/Dissociation and Redox States of a Single Transition Metal Ions. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Seung-Ryoung Jung
- Department of Physics and Astronomy; Seoul National University; Seoul Republic of Korea
- National Center of Creative Research initiatives, Seoul National University; Seoul Republic of Korea
| | - Sang-Wook Lee
- Department of Physics and Astronomy; Seoul National University; Seoul Republic of Korea
- National Center of Creative Research initiatives, Seoul National University; Seoul Republic of Korea
| | - Sungchul Hohng
- National Center of Creative Research initiatives, Seoul National University; Seoul Republic of Korea
- Institute of Applied Physics, Seoul National University; Seoul Republic of Korea
| |
Collapse
|
24
|
Wang Q, Wu S, Tan Y, Yan Y, Guo L, Tang X. A highly selective, fast-response and fluorescent turn on chemosensor for the detection of Cu 2+ ions and its potential applications. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.02.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
25
|
Płonka D, Bal W. The N-terminus of hepcidin is a strong and potentially biologically relevant Cu(II) chelator. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
26
|
Ren H, Zhang Y, Guo S, Lin N, Deng L, Yue T, Huang F. Identifying Cu(ii)-amyloid peptide binding intermediates in the early stages of aggregation by resonance Raman spectroscopy: a simulation study. Phys Chem Chem Phys 2018; 19:31103-31112. [PMID: 29138762 DOI: 10.1039/c7cp06206k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aggregation of amyloid beta (Aβ) peptides plays a crucial role in the pathology and etiology of Alzheimer's disease. Experimental evidence shows that copper ion is an aggregation-prone species with the ability to coordinately bind to Aβ and further induce the formation of neurotoxic Aβ oligomers. However, the detailed structures of Cu(ii)-Aβ complexes have not been illustrated, and the kinetics and dynamics of the Cu(ii) binding are not well understood. Two Cu(ii)-Aβ complexes have been proposed to exist under physiological conditions, and another two might exist at higher pH values. By using ab initio simulations for the spontaneous resonance Raman and time domain stimulated resonance Raman spectroscopy signals, we obtained the characteristic Raman vibronic features of each complex. These signals contain rich structural information with high temporal resolution, enabling the characterization of transient states during the fast Cu-Aβ binding and interconversion processes.
Collapse
Affiliation(s)
- Hao Ren
- State Key Laboratory of Heavy Oil Processing, Center for Bioengineering & Biotechnology, China University of Petroleum (East China), Qingdao, 266580, P. R. China.
| | | | | | | | | | | | | |
Collapse
|
27
|
NISHIZAWA H, OKUMURA H. Classical Molecular Dynamics Simulation to Understand Role of a Zinc Ion for Aggregation of Amyloid-β Peptides. JOURNAL OF COMPUTER CHEMISTRY-JAPAN 2018. [DOI: 10.2477/jccj.2018-0005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hiroaki NISHIZAWA
- Department of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
| | - Hisashi OKUMURA
- Department of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
- Department of Structural Molecular Science, The Graduate University for Advanced Studies (SOKENDAI), Okazaki, Aichi 444-8585, Japan
| |
Collapse
|
28
|
Yako N, Young TR, Cottam Jones JM, Hutton CA, Wedd AG, Xiao Z. Copper binding and redox chemistry of the Aβ16 peptide and its variants: insights into determinants of copper-dependent reactivity. Metallomics 2017; 9:278-291. [PMID: 28145544 DOI: 10.1039/c6mt00299d] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The metal-binding sites of Aβ peptides are dictated primarily by the coordination preferences of the metal ion. Consequently, Cu(i) is typically bound with two His ligands in a linear mode while Cu(ii) forms a pseudo-square planar stereochemistry with the N-terminal amine nitrogen acting as an anchoring ligand. Several distinct combinations of other groups can act as co-ligands for Cu(ii). A population of multiple binding modes is possible with the equilibrium position shifting sensitively with solution pH and the nature of the residues in the N-terminal region. This work examined the Cu(ii) chemistry of the Aβ16 peptide and several variants that targeted these binding modes. The results are consistent with: (i) at pH < 7.8, the square planar site in CuII-Aβ16 consists primarily of a bidentate ligand provided by the carboxylate sidechain of Asp1 and the N-terminal amine supported by the imidazole sidechains of two His residues (designated here as component IA); it is in equilibrium with a less stable component IB in which the carboxylate ligand is substituted by the Asp1-Ala2 carbonyl oxygen. (ii) Both IA and IB convert to a common component II (apparent transition pKa ∼7.8 for IA and ∼6.5 for IB, respectively) featuring a tridentate ligand consisting of the N-terminal amine, the Asp1-Ala2 amide and the Ala2-Pro3 carbonyl; this stereochemistry is stabilized by two five-membered chelate rings. (iii) Component IA is stabilized for variant Aβ16-D1H, components I (both IA and IB) are imposed on Aβ16-A2P while the less stable IB is enforced on Aβ16-D1A (which is converted to component II at pH ∼6.5); (iv) components IA and IB share two His ligands with Cu(i) and are more reactive in redox catalysis than component II that features a highly covalent and less reactive amide N- ligand. The redox activity of IA is further enhanced for peptides with a His1 N-terminus that may act as a ligand for either Cu(i) or Cu(ii) with lower re-organization energy required for redox-shuttling. This study provided insights into the determinants that regulate the reactivity of Cu-Aβ complexes.
Collapse
Affiliation(s)
- Nineveh Yako
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Tessa R Young
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Jade M Cottam Jones
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Craig A Hutton
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Anthony G Wedd
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Zhiguang Xiao
- School of Chemistry and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
| |
Collapse
|
29
|
Atrián-Blasco E, Conte-Daban A, Hureau C. Mutual interference of Cu and Zn ions in Alzheimer's disease: perspectives at the molecular level. Dalton Trans 2017; 46:12750-12759. [PMID: 28937157 PMCID: PMC5656098 DOI: 10.1039/c7dt01344b] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 06/22/2017] [Indexed: 12/26/2022]
Abstract
While metal ions such as copper and zinc are essential in biology, they are also linked to several amyloid-related diseases, including Alzheimer's disease (AD). Zinc and copper can indeed modify the aggregation pathways of the amyloid-β (Aβ) peptide, the key component encountered in AD. In addition, the redox active copper ions do produce Reactive Oxygen Species (ROS) when bound to the Aβ peptide. While Cu(i) or Cu(ii) or Zn(ii) coordination to the Aβ has been extensively studied in the last ten years, characterization of hetero-bimetallic Aβ complexes is still scarce. This is also true for the metal induced Aβ aggregation and ROS production, for which studies on the mutual influence of the copper and zinc ions are currently appearing. Last but not least, zinc can strongly interfere in therapeutic approaches relying on copper detoxification. This will be exemplified with a biological lead, namely metallothioneins, and with synthetic ligands.
Collapse
Affiliation(s)
- Elena Atrián-Blasco
- CNRS , LCC (Laboratoire de Chimie de Coordination) , 205 route de Narbonne , BP 44099 31077 Toulouse Cedex 4 , France .
- University of Toulouse , UPS , INPT , 31077 Toulouse Cedex 4 , France
| | - Amandine Conte-Daban
- CNRS , LCC (Laboratoire de Chimie de Coordination) , 205 route de Narbonne , BP 44099 31077 Toulouse Cedex 4 , France .
- University of Toulouse , UPS , INPT , 31077 Toulouse Cedex 4 , France
| | - Christelle Hureau
- CNRS , LCC (Laboratoire de Chimie de Coordination) , 205 route de Narbonne , BP 44099 31077 Toulouse Cedex 4 , France .
- University of Toulouse , UPS , INPT , 31077 Toulouse Cedex 4 , France
| |
Collapse
|
30
|
Branch T, Barahona M, Dodson CA, Ying L. Kinetic Analysis Reveals the Identity of Aβ-Metal Complex Responsible for the Initial Aggregation of Aβ in the Synapse. ACS Chem Neurosci 2017. [PMID: 28621929 PMCID: PMC5609119 DOI: 10.1021/acschemneuro.7b00121] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
![]()
The
mechanism of Aβ aggregation in the absence of metal ions
is well established, yet the role that Zn2+ and Cu2+, the two most studied metal ions, released during neurotransmission,
paly in promoting Aβ aggregation in the vicinity of neuronal
synapses remains elusive. Here we report the kinetics of Zn2+ binding to Aβ and Zn2+/Cu2+ binding
to Aβ-Cu to form ternary complexes under near physiological
conditions (nM Aβ, μM metal ions). We find that these
reactions are several orders of magnitude slower than Cu2+ binding to Aβ. Coupled reaction-diffusion simulations of the
interactions of synaptically released metal ions with Aβ show
that up to a third of Aβ is Cu2+-bound under repetitive
metal ion release, while any other Aβ-metal complexes (including
Aβ-Zn) are insignificant. We therefore conclude that Zn2+ is unlikely to play an important role in the very early
stages (i.e., dimer formation) of Aβ aggregation, contrary to
a widely held view in the subject. We propose that targeting the specific
interactions between Cu2+ and Aβ may be a viable
option in drug development efforts for early stages of AD.
Collapse
Affiliation(s)
- Thomas Branch
- Institute of Chemical Biology, ‡Department of Chemistry, §Department of Mathematics, and ∥National Heart
and Lung Institute, Imperial College London, London SW7 2AZ, United Kingdom
| | - Mauricio Barahona
- Institute of Chemical Biology, ‡Department of Chemistry, §Department of Mathematics, and ∥National Heart
and Lung Institute, Imperial College London, London SW7 2AZ, United Kingdom
| | - Charlotte A. Dodson
- Institute of Chemical Biology, ‡Department of Chemistry, §Department of Mathematics, and ∥National Heart
and Lung Institute, Imperial College London, London SW7 2AZ, United Kingdom
| | - Liming Ying
- Institute of Chemical Biology, ‡Department of Chemistry, §Department of Mathematics, and ∥National Heart
and Lung Institute, Imperial College London, London SW7 2AZ, United Kingdom
| |
Collapse
|
31
|
Xie B, Liu F, Dong X, Wang Y, Liu XM, Sun Y. Modulation effect of acidulated human serum albumin on Cu 2+ -mediated amyloid β-protein aggregation and cytotoxicity under a mildly acidic condition. J Inorg Biochem 2017; 171:67-75. [DOI: 10.1016/j.jinorgbio.2017.03.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 02/10/2017] [Accepted: 03/19/2017] [Indexed: 12/31/2022]
|
32
|
Goch W, Bal W. Numerical Simulations Reveal Randomness of Cu(II) Induced Aβ Peptide Dimerization under Conditions Present in Glutamatergic Synapses. PLoS One 2017; 12:e0170749. [PMID: 28125716 PMCID: PMC5268396 DOI: 10.1371/journal.pone.0170749] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 01/10/2017] [Indexed: 12/22/2022] Open
Abstract
The interactions between the Aβ1-40 molecules species and the copper ions (Cu(II)) were intensively investigated due to their potential role in the development of the Alzheimer Disease (AD). The rate and the mechanism of the Cu(II)-Aβ complexes formation determines the aggregation pathway of the Aβ species, starting from smaller but more cytotoxic oligomers and ending up in large Aβ plaques, being the main hallmark of the AD. In our study we exploit the existing knowledge on the Cu(II)-Aβ interactions and create the theoretical model of the initial phase of the copper- driven Aβ aggregation mechanism. The model is based on the direct solution of the Chemical Master Equations, which capture the inherent stochastics of the considered system. In our work we argue that due to a strong Cu(II) affinity to Aβ and temporal accessibility of the Cu(II) ions during normal synaptic activity the aggregation driven by Cu(II) dominates the pure Aβ aggregation. We also demonstrate the dependence of the formation of different Cu(II)-Aβ complexes on the concentrations of reagents and the synaptic activity. Our findings correspond to recent experimental results and give a sound hypothesis on the AD development mechanisms.
Collapse
Affiliation(s)
- Wojciech Goch
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| |
Collapse
|
33
|
Nishizawa H, Okumura H. Rapid QM/MM approach for biomolecular systems under periodic boundary conditions: Combination of the density-functional tight-binding theory and particle mesh Ewald method. J Comput Chem 2016; 37:2701-2711. [DOI: 10.1002/jcc.24497] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 09/01/2016] [Accepted: 09/03/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Hiroaki Nishizawa
- Department of Theoretical and Computational Molecular Science; Institute for Molecular Science; Okazaki Aichi 444-8585 Japan
| | - Hisashi Okumura
- Department of Theoretical and Computational Molecular Science; Institute for Molecular Science; Okazaki Aichi 444-8585 Japan
- Department of Structural Molecular Science; The Graduate University for Advanced Studies; Okazaki Aichi 444-8585 Japan
| |
Collapse
|
34
|
Girvan P, Miyake T, Teng X, Branch T, Ying L. Kinetics of the Interactions between Copper and Amyloid-β with FAD Mutations and Phosphorylation at the N terminus. Chembiochem 2016; 17:1732-7. [PMID: 27356100 PMCID: PMC5096041 DOI: 10.1002/cbic.201600255] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Indexed: 12/27/2022]
Abstract
Mutations and post‐translational modifications of amyloid‐β (Aβ) peptide in its N terminus have been shown to increase fibril formation, yet the molecular mechanism is not clear. Here we investigated the kinetics of the interactions of copper with two Aβ peptides containing Familial Alzheimer's disease (FAD) mutations (English (H6R) and Tottori (D7N)), as well as with Aβ peptide phosphorylated at serine 8 (pS8). All three peptides bind to copper with a similar rate as the wild‐type (wt). The dissociation rates follow the order pS8>H6R>wt>D7N; the interconversion between the two coordinating species occurs 50 % faster for H6R and pS8, whereas D7N had only a negligible effect. Interestingly, the rate of ternary complex (copper‐bridged heterodimer) formation for the modified peptides was significantly faster than that for wt, thus leading us to propose that FAD and sporadic AD might share a kinetic origin for the enhanced oligomerisation of Aβ.
Collapse
Affiliation(s)
- Paul Girvan
- Institute of Chemical Biology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.,Department of Chemistry, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Toru Miyake
- Molecular Medicine, National Heart and Lung Institute, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.,Faculty of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-0034, Japan
| | - Xiangyu Teng
- Institute of Chemical Biology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.,Department of Chemistry, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Thomas Branch
- Institute of Chemical Biology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.,Department of Chemistry, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Liming Ying
- Molecular Medicine, National Heart and Lung Institute, Imperial College London, Exhibition Road, London, SW7 2AZ, UK. .,Institute of Chemical Biology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.
| |
Collapse
|
35
|
Luo Y, Zhang L, Liu W, Yu Y, Tian Y. A Single Biosensor for Evaluating the Levels of Copper Ion and
L
‐Cysteine in a Live Rat Brain with Alzheimer's Disease. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508635] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yongping Luo
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai 200062 (P.R. China)
- Xinyu Institute of New Energy, Xinyu University, Sunshine Avenue 2666, Xinyu 338004 (China)
| | - Limin Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai 200062 (P.R. China)
| | - Wei Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai 200062 (P.R. China)
| | - Yanyan Yu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Department of Pharmaceutical Analysis, Xuzhou Medical College, Xuzhou 221004 (China)
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai 200062 (P.R. China)
| |
Collapse
|
36
|
Luo Y, Zhang L, Liu W, Yu Y, Tian Y. A Single Biosensor for Evaluating the Levels of Copper Ion andL-Cysteine in a Live Rat Brain with Alzheimer's Disease. Angew Chem Int Ed Engl 2015; 54:14053-6. [DOI: 10.1002/anie.201508635] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 10/08/2015] [Indexed: 11/06/2022]
|
37
|
Xie B, Dong X, Wang Y, Sun Y. Multifunctionality of Acidulated Serum Albumin on Inhibiting Zn²⁺-Mediated Amyloid β-Protein Fibrillogenesis and Cytotoxicity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:7374-7380. [PMID: 26070334 DOI: 10.1021/acs.langmuir.5b01108] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fibrillogenesis of amyloid β-proteins (Aβ) mediated by transition-metal ions such as Zn(2+) in neuronal cells plays a causative role in Alzheimer's disease. Hence, it is highly desired to design multifunctional agents capable of inhibiting Aβ aggregation and modulating metal-Aβ species. In this study, we fabricated acidulated human serum albumin (A-HSA) as a multifunctional agent for binding Zn(2+) and modulating Zn(2+)-mediated Aβ fibrillogenesis and cytotoxicity. On average, 19.5 diglycolic anhydrides were modified onto the surface of human serum albumin (HSA). It was confirmed that A-HSA kept the stability and biocompatibility of native HSA. Moreover, it could inhibit Aβ42 fibrillogenesis and change the pathway of Zn(2+)-mediated Aβ42 aggregation, as demonstrated by extensive biophysical assays. In addition, upon incubation with A-HSA, the cytotoxicity presented by Zn(2+)-Aβ42 aggregates was significantly mitigated in living cells. The results showed that A-HSA had much stronger inhibitory effect on Zn(2+)-mediated Aβ42 fibrillogenesis and cytotoxicity than equimolar HSA. Isothermal titration calorimetry and stopped-flow fluorescence measurements were then performed to investigate the working mechanism of A-HSA. The studies showed that the A-HSA surface, with more negative charges, not only had stronger affinity for Zn(2+) but also might decrease the binding affinity of Aβ42 for Zn(2+). Moreover, hydrophobic binding and electrostatic repulsion could work simultaneously on the bound Aβ42 on the A-HSA surface. As a result, Aβ42 conformations could be stretched, which avoided the formation of toxic Zn(2+)-Aβ42 aggregates. The research thus revealed that A-HSA is a multifunctional agent capable of altering the pathway of Zn(2+)-mediated Aβ42 aggregation and greatly mitigating the amyloid cytotoxicity.
Collapse
Affiliation(s)
- Baolong Xie
- †Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiaoyan Dong
- †Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yongjian Wang
- ‡Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yan Sun
- †Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| |
Collapse
|
38
|
Pedersen JT, Borg CB, Michaels TCT, Knowles TPJ, Faller P, Teilum K, Hemmingsen L. Aggregation-Prone Amyloid-β⋅CuIISpecies Formed on the Millisecond Timescale under Mildly Acidic Conditions. Chembiochem 2015; 16:1293-7. [DOI: 10.1002/cbic.201500080] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Indexed: 12/24/2022]
|