1
|
De Santis E, Alleva S, Minicozzi V, Morante S, Stellato F. Probing the Dynamic Landscape: From Static to Time-Resolved X-Ray Absorption Spectroscopy to Investigate Copper Redox Chemistry in Neurodegenerative Disorders. Chempluschem 2024; 89:e202300712. [PMID: 38526934 DOI: 10.1002/cplu.202300712] [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: 12/01/2023] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 03/27/2024]
Abstract
Copper (Cu), with its ability to exist in various oxidation states, notably Cu(I) and Cu(II), plays a crucial role in diverse biological redox reactions. This includes its involvement in pathways associated with oxidative stress in neurodegenerative disorders such as Alzheimer's disease, Parkinson's disease, and Transmissible Spongiform Encephalopathies. This paper offers an overview of X-ray Absorption Spectroscopy (XAS) studies designed to elucidate the interactions between Cu ions and proteins or peptides associated with these neurodegenerative diseases. The emphasis lies on XAS specificity, revealing the local coordination environment, and on its sensitivity to Cu oxidation states. Furthermore, the paper focuses on XAS applications targeting the characterization of intermediate reaction states and explores the opportunities arising from recent advancements in time-resolved XAS at ultrabright synchrotron and Free Electron Laser radiation sources.
Collapse
Affiliation(s)
- Emiliano De Santis
- Department of Chemistry-BMC, Uppsala University, Box 576, SE-751 23, Uppsala, Sweden
| | - Stefania Alleva
- Department of Physics, University of Rome, Tor Vergata, Rome, 00133, Italy
- INFN, Rome, Tor Vergata, Rome, 00133, Italy
| | - Velia Minicozzi
- Department of Physics, University of Rome, Tor Vergata, Rome, 00133, Italy
- INFN, Rome, Tor Vergata, Rome, 00133, Italy
| | - Silvia Morante
- Department of Physics, University of Rome, Tor Vergata, Rome, 00133, Italy
- INFN, Rome, Tor Vergata, Rome, 00133, Italy
| | - Francesco Stellato
- Department of Physics, University of Rome, Tor Vergata, Rome, 00133, Italy
- INFN, Rome, Tor Vergata, Rome, 00133, Italy
| |
Collapse
|
2
|
Walke G, Kumar R, Wittung‐Stafshede P. Copper ion incorporation in α-synuclein amyloids. Protein Sci 2024; 33:e4956. [PMID: 38511511 PMCID: PMC10955613 DOI: 10.1002/pro.4956] [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: 10/18/2023] [Revised: 02/01/2024] [Accepted: 02/19/2024] [Indexed: 03/22/2024]
Abstract
Copper ion dys-homeostasis is linked to neurodegenerative diseases involving amyloid formation. Even if many amyloidogenic proteins can bind copper ions as monomers, little is known about copper interactions with the resulting amyloid fibers. Here, we investigate copper interactions with α-synuclein, the amyloid-forming protein in Parkinson's disease. Copper (Cu(II)) binds tightly to monomeric α-synuclein in vitro involving the N-terminal amine and the side chain of His50. Using purified protein and biophysical methods in vitro, we reveal that copper ions are readily incorporated into the formed amyloid fibers when present at the start of aggregation reactions, and the metal ions also bind if added to pre-formed amyloids. Efficient incorporation is observed for α-synuclein variants with perturbation of either one of the high-affinity monomer copper-binding residues (i.e., N-terminus or His50) whereas a variant with both N-terminal acetylation and His50 substituted with Ala does not incorporate any copper into the amyloids. Both the morphology of the resulting α-synuclein amyloids (amyloid fiber pitch, secondary structure, proteinase sensitivity) and the copper chemical properties (redox activity, chemical potential) are altered when copper is incorporated into amyloids. We speculate that copper chelation by α-synuclein amyloids contributes to the observed copper dys-homeostasis (e.g., reduced bioavailable levels) in Parkinson's disease patients. At the same time, amyloid-copper interactions may be protective to neuronal cells as they will shield aberrantly free copper ions from promotion of toxic reactive oxygen species.
Collapse
Affiliation(s)
- Gulshan Walke
- Department of Life SciencesChalmers University of TechnologyGothenburgSweden
| | - Ranjeet Kumar
- Department of Life SciencesChalmers University of TechnologyGothenburgSweden
| | | |
Collapse
|
3
|
Uceda AB, Ramis R, Pauwels K, Adrover M, Mariño L, Frau J, Vilanova B. Understanding the effect of the membrane-mimetic micelles on the interplay between α-synuclein and Cu(II)/Cu(I) cations. J Inorg Biochem 2023; 247:112344. [PMID: 37542850 DOI: 10.1016/j.jinorgbio.2023.112344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/20/2023] [Accepted: 07/27/2023] [Indexed: 08/07/2023]
Abstract
α-Synuclein (αS) is a presynaptic protein whose aggregates are considered as a hallmark of Parkinson's disease (PD). Although its physiological function is still under debate, it is widely accepted that its functions are always mediated by its interaction with membranes. The association of αS with phospholipid membranes occurs concomitant to its folding from its monomeric, unfolded state towards an antiparallel amphipathic α-helix. Besides this, copper ions can also bind αS and modify its aggregation propensity. The effect of Cu(II) and Cu(I) on the lipid-αS affinity and on the structure of the membrane-bound αS have not yet been studied. This knowledge is relevant to understand the molecular pathogenesis of PD. Therefore, we have here studied the affinities between Cu(II) and Cu(I) and the micelle-bound αS, as well as the effect of these cations on the structure of micelle-bound αS. Cu(II) or Cu(I) did not affect the α-helical structure of the micelle-bound αS. However, while Cu(I) binds at the same sites of αS in the presence or in the absence of micelles, the micelle-bound αS displays different Cu(II) binding sites than unbound αS. In any case, sodium docecyl sulphate -micelles reduce the stability of the αS complexes with both Cu(II) and Cu(I). Finally, we have observed that the micelle-bound αS is still able to prevent the Cu(II)-catalysed oxidation of neuronal metabolites (e.g. ascorbic acid) and the formation of reactive oxygen species, thus this binding does not impair its biological function as part of the antioxidant machinery.
Collapse
Affiliation(s)
- Ana Belén Uceda
- Departament de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdIsBa), University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Spain
| | - Rafael Ramis
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain; Departamento de Física, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain
| | - Kris Pauwels
- Vrije Universiteit Brussels, Pleinlaan 2, 1050 Brussels, Belgium
| | - Miquel Adrover
- Departament de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdIsBa), University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Spain
| | - Laura Mariño
- Departament de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdIsBa), University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Spain
| | - Juan Frau
- Departament de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdIsBa), University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Spain
| | - Bartolomé Vilanova
- Departament de Química, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdIsBa), University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Spain.
| |
Collapse
|
4
|
Sk S, Majumder A, Sow P, Samadder A, Bera M. Exploring a new family of designer copper(II) complexes of anthracene-appended polyfunctional organic assembly displaying potential anticancer activity via cytochrome c mediated mitochondrial apoptotic pathway. J Inorg Biochem 2023; 243:112182. [PMID: 36933342 DOI: 10.1016/j.jinorgbio.2023.112182] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/27/2023] [Accepted: 03/08/2023] [Indexed: 03/18/2023]
Abstract
The present article describes the systematic study on design and synthesis, physicochemical properties and spectroscopic features, and potential anticancer activities of a family of novel copper(II)-based designer metal complexes [Cu2(acdp)(μ-Cl)(H2O)2] (1), [Cu2(acdp)(μ-NO3)(H2O)2] (2) and [Cu2(acdp)(μ-O2CCF3)(H2O)2] (3) of anthracene-appended polyfunctional organic assembly, H3acdp (H3acdp = N,N'-bis[anthracene-2-ylmethyl]-N,N'-bis[carboxymethyl]-1,3-diaminopropan-2-ol). Synthesis of 1-3 was accomplished under facile experimental conditions, preserving their overall integrity in solution. The incorporation of polycyclic anthracene skeleton within the backbone of organic assembly increases lipophilicity of resulting complexes, thereby dictating the degree of cellular uptake with improved biological activity. Complexes 1-3 were characterized by elemental analysis, molar conductance, FTIR, UV-Vis absorption/fluorescence emission titration spectroscopy, PXRD and TGA/DTA studies, including DFT calculations. The cellular cytotoxicity of 1-3 when studied in HepG2 cancer cell line showed substantial cytotoxic effects, whereas no such cytotoxicity was observed when exposed to normal L6 skeletal muscle cell line. Thereafter, the signaling factors involved in the process of cytotoxicity in HepG2 cancer cells were investigated. Alteration of cytochrome c and Bcl-2 protein expression levels along with modulation of mitochondrial membrane potential (MMP) in the presence of 1-3, strongly suggested the possibility of activating mitochondria-mediated apoptotic pathway involved in halting the cancer cell propagation. However, when a comparative assessment on their bio-efficacies was made, 1 showed higher cytotoxicity, nuclear condensation, DNA binding and damage, ROS generation and lower rate of cell proliferation compared to 2 and 3 in HepG2 cell line, indicating that the anticancer activity of 1 is significantly higher than that of 2 and 3.
Collapse
Affiliation(s)
- Sujan Sk
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Avishek Majumder
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Priyanka Sow
- Department of Zoology, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Asmita Samadder
- Department of Zoology, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India.
| | - Manindranath Bera
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India.
| |
Collapse
|
5
|
Copper Binding and Redox Activity of α-Synuclein in Membrane-Like Environment. Biomolecules 2023; 13:biom13020287. [PMID: 36830656 PMCID: PMC9953312 DOI: 10.3390/biom13020287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
α-Synuclein (αSyn) constitutes the main protein component of Lewy bodies, which are the pathologic hallmark in Parkinson's disease. αSyn is unstructured in solution but the interaction of αSyn with lipid membrane modulates its conformation by inducing an α-helical structure of the N-terminal region. In addition, the interaction with metal ions can trigger αSyn conformation upon binding and/or through the metal-promoted generation of reactive oxygen species which lead to a cascade of structural alterations. For these reasons, the ternary interaction between αSyn, copper, and membranes needs to be elucidated in detail. Here, we investigated the structural properties of copper-αSyn binding through NMR, EPR, and XAS analyses, with particular emphasis on copper(I) coordination since the reduced state is particularly relevant for oxygen activation chemistry. The analysis was performed in different membrane model systems, such as micellar sodium dodecyl sulfate (SDS) and unilamellar vesicles, comparing the binding of full-length αSyn and N-terminal peptide fragments. The presence of membrane-like environments induced the formation of a copper:αSyn = 1:2 complex where Cu+ was bound to the Met1 and Met5 residues of two helical peptide chains. In this coordination, Cu+ is stabilized and is unreactive in the presence of O2 in catechol substrate oxidation.
Collapse
|
6
|
Crossroads between copper ions and amyloid formation in Parkinson's disease. Essays Biochem 2022; 66:977-986. [PMID: 35757906 PMCID: PMC9760422 DOI: 10.1042/ebc20220043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/07/2022] [Accepted: 06/07/2022] [Indexed: 12/25/2022]
Abstract
Copper (Cu) ion dys-homeostasis and α-synclein amyloid deposits are two hallmarks of Parkinson's disease (PD). Here, I will discuss the connections between these features, with a major focus on the role of Cu in the α-synuclein (aS) amyloid formation process. The structurally disordered aS monomer can bind to both redox states of Cu (i.e., oxidized Cu(II) and reduced Cu(I)) with high affinity in vitro. Notably, the presence of Cu(II) (in absence of aS N-terminal acetylation) and Cu(I) (when in complex with the copper chaperone Atox1) modulate aS assembly into β-structured amyloids in opposite directions in vitro. Albeit the link to biological relevance is not fully unraveled, existing observations clearly emphasize the need for more knowledge on this interplay and its consequences to eventually combat destructive reactions that promote PD.
Collapse
|
7
|
Walencik PK. The redox-active Cu-FomA complex: the mode that provides coordination of Cu II/Cu I ions during the reduction/oxidation cycle. Dalton Trans 2022; 51:15515-15529. [PMID: 36165635 DOI: 10.1039/d2dt02398a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Colorectal cancer (CRC) is the third most commonly diagnosed form of cancer worldwide. Recent studies have indicated a strong correlation between microbial imbalance and the development of CRC. An abundance of Fusobacterium nucleatum, an anaerobic Gram-negative bacterium, has been considered a biomarker of CRC progression. Several investigations have also proposed that binding copper ions to various bacterial proteins enhances the CuII + e- ⇄ CuI redox cycle, which consequently promotes uncontrolled production of reactive oxygen species (ROS) and propels colorectal carcinogenesis. In this work, a multidisciplinary approach was applied to study the molecular relation of copper with the peptide models of FomA, a protein expressed by Fusobacterium nucleatum. The main goal was to investigate all the factors that tune the CuII + e- ⇄ CuI equilibrium. A linear peptide Fom1 (Ac-KGHGNGEEGTPTVHNE-NH2) and cyclic peptide Fom2 (cyclo-(KGHGNGEEGTPTVHNE)) were used as ligands. The coordination of CuI was deduced from the NMR data. The conditional dissociation constants KcondD defined the stability of CuI complexes. The electrochemical activity of CuII and CuI compounds was analysed using cyclic voltammetry. A quasi-reversible redox conversion CuII-peptide + e- ⇄ CuI-peptide was revealed for all studied systems. In the presence of ascorbic acid (HAsc), CuII complexes were immediately reduced to CuI species; however, their re-oxidation was kinetically sluggish. The HAsc-induced redox cycle provoked the metal-catalyzed oxidation (MCO) effect. That in the end prevented coordination of the re-appearing CuII ion to its initial binding site. The toxicity of the FomA-CuII/CuI complexes and their role in CRC progression were briefly discussed.
Collapse
Affiliation(s)
- Paulina K Walencik
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wroclaw, Poland.
| |
Collapse
|
8
|
Abstract
Amyloids are organized suprastructural polypeptide arrangements. The prevalence of amyloid-related processes of pathophysiological relevance has been linked to aging-related degenerative diseases. Besides the role of genetic polymorphisms on the relative risk of amyloid diseases, the contributions of nongenetic ontogenic cluster of factors remain elusive. In recent decades, mounting evidences have been suggesting the role of essential micronutrients, in particular transition metals, in the regulation of amyloidogenic processes, both directly (such as binding to amyloid proteins) or indirectly (such as regulating regulatory partners, processing enzymes, and membrane transporters). The features of transition metals as regulatory cofactors of amyloid proteins and the consequences of metal dyshomeostasis in triggering amyloidogenic processes, as well as the evidences showing amelioration of symptoms by dietary supplementation, suggest an exaptative role of metals in regulating amyloid pathways. The self- and cross-talk replicative nature of these amyloid processes along with their systemic distribution support the concept of their metastatic nature. The role of amyloidosis as nutrient sensors would act as intra- and transgenerational epigenetic metabolic programming factors determining health span and life span, viability, which could participate as an evolutive selective pressure.
Collapse
Affiliation(s)
- Luís Maurício T R Lima
- Laboratory for Pharmaceutical Biotechnology - pbiotech, Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratory for Macromolecules (LAMAC-DIMAV), National Institute of Metrology, Quality and Technology - INMETRO, Duque de Caxias, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tháyna Sisnande
- Laboratory for Pharmaceutical Biotechnology - pbiotech, Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| |
Collapse
|
9
|
Rodríguez EE, Ríos A, Trujano-Ortiz LG, Villegas A, Castañeda-Hernández G, Fernández CO, González FJ, Quintanar L. Comparing the copper binding features of alpha and beta synucleins. J Inorg Biochem 2022; 229:111715. [DOI: 10.1016/j.jinorgbio.2022.111715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/10/2021] [Accepted: 01/01/2022] [Indexed: 10/19/2022]
|
10
|
Hayashi J, Carver JA. β-Synuclein: An Enigmatic Protein with Diverse Functionality. Biomolecules 2022; 12:142. [PMID: 35053291 PMCID: PMC8773819 DOI: 10.3390/biom12010142] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/09/2022] [Accepted: 01/12/2022] [Indexed: 12/24/2022] Open
Abstract
α-Synuclein (αS) is a small, unstructured, presynaptic protein expressed in the brain. Its aggregated form is a major component of Lewy bodies, the large proteinaceous deposits in Parkinson's disease. The closely related protein, β-Synuclein (βS), is co-expressed with αS. In vitro, βS acts as a molecular chaperone to inhibit αS aggregation. As a result of this assignation, βS has been largely understudied in comparison to αS. However, recent reports suggest that βS promotes neurotoxicity, implying that βS is involved in other cellular pathways with functions independent of αS. Here, we review the current literature pertaining to human βS in order to understand better the role of βS in homeostasis and pathology. Firstly, the structure of βS is discussed. Secondly, the ability of βS to (i) act as a molecular chaperone; (ii) regulate synaptic function, lipid binding, and the nigrostriatal dopaminergic system; (iii) mediate apoptosis; (iv) participate in protein degradation pathways; (v) modulate intracellular metal levels; and (vi) promote cellular toxicity and protein aggregation is explored. Thirdly, the P123H and V70M mutations of βS, which are associated with dementia with Lewy bodies, are discussed. Finally, the importance of post-translational modifications on the structure and function of βS is reviewed. Overall, it is concluded that βS has both synergistic and antagonistic interactions with αS, but it may also possess important cellular functions independent of αS.
Collapse
Affiliation(s)
| | - John A. Carver
- Research School of Chemistry, The Australian National University, Acton, ACT 2601, Australia;
| |
Collapse
|
11
|
Lorentzon E, Kumar R, Horvath I, Wittung-Stafshede P. Differential effects of Cu 2+ and Fe 3+ ions on in vitro amyloid formation of biologically-relevant α-synuclein variants. Biometals 2020; 33:97-106. [PMID: 32170541 PMCID: PMC7295844 DOI: 10.1007/s10534-020-00234-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/04/2020] [Indexed: 01/26/2023]
Abstract
Alterations in metal ion homeostasis appear coupled to neurodegenerative disorders but mechanisms are unknown. Amyloid formation of the protein α-synuclein in brain cells is a hallmark of Parkinson's disease. α-Synuclein can bind several metal ions in vitro and such interactions may affect the assembly process. Here we used biophysical methods to study the effects of micromolar concentrations of Cu2+ and Fe3+ ions on amyloid formation of selected α-synuclein variants (wild-type and A53T α-synuclein, in normal and N-terminally acetylated forms). As shown previously, Cu2+ speeds up aggregation of normal wild-type α-synuclein, but not the acetylated form. However, Cu2+ has a minimal effect on (the faster) aggregation of normal A53T α-synuclein, despite that Cu2+ binds to this variant. Like Cu2+, Fe3+ speeds up aggregation of non-acetylated wild-type α-synuclein, but with acetylation, Fe3+ instead slows down aggregation. In contrast, for A53T α-synuclein, regardless of acetylation, Fe3+ slows down aggregation with the effect being most dramatic for acetylated A53T α-synuclein. The results presented here suggest a correlation between metal-ion modulation effect and intrinsic aggregation speed of the various α-synuclein variants.
Collapse
Affiliation(s)
- Emma Lorentzon
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden.,Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Ranjeet Kumar
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Istvan Horvath
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Pernilla Wittung-Stafshede
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden.
| |
Collapse
|
12
|
Falcone E, Ahmed IMM, Oliveri V, Bellia F, Vileno B, El Khoury Y, Hellwig P, Faller P, Vecchio G. Acrolein and Copper as Competitive Effectors of α‐Synuclein. Chemistry 2020; 26:1871-1879. [DOI: 10.1002/chem.201904885] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Enrico Falcone
- Dipartimento di Scienze ChimicheUniversità degli Studi di Catania A. Doria 6 95125 Catania Italy
- Institut de Chimie, UMR 7177CNRSUniversité de Strasbourg 4 Rue Blaise Pascal 67000 Strasbourg France
| | - Ikhlas M. M. Ahmed
- Istituto di CristallografiaConsiglio Nazionale delle Ricerche P. Gaifami 18 95126 Catania Italy
- Dipartimento di Scienze ChimicheUniversità degli Studi di Catania A. Doria 6 95125 Catania Italy
| | - Valentina Oliveri
- Dipartimento di Scienze ChimicheUniversità degli Studi di Catania A. Doria 6 95125 Catania Italy
| | - Francesco Bellia
- Istituto di CristallografiaConsiglio Nazionale delle Ricerche P. Gaifami 18 95126 Catania Italy
| | - Bertrand Vileno
- Institut de Chimie, UMR 7177CNRSUniversité de Strasbourg 4 Rue Blaise Pascal 67000 Strasbourg France
- French EPR Federation of ResearchFédération IR-RPE CNRS 67081 Strasbourg France
| | - Youssef El Khoury
- Laboratoire de bioélectrochimie et spectroscopie, UMR 7140CNRSUniversité de Strasbourg 4 Rue Blaise Pascal 67081 Strasbourg France
| | - Petra Hellwig
- Laboratoire de bioélectrochimie et spectroscopie, UMR 7140CNRSUniversité de Strasbourg 4 Rue Blaise Pascal 67081 Strasbourg France
- Institute for Advanced Study (USIAS)Université de Strasbourg 5 allée du Général Rouvillois 67083 Strasbourg France
| | - Peter Faller
- Institut de Chimie, UMR 7177CNRSUniversité de Strasbourg 4 Rue Blaise Pascal 67000 Strasbourg France
| | - Graziella Vecchio
- Dipartimento di Scienze ChimicheUniversità degli Studi di Catania A. Doria 6 95125 Catania Italy
| |
Collapse
|
13
|
Horvath I, Blockhuys S, Šulskis D, Holgersson S, Kumar R, Burmann BM, Wittung-Stafshede P. Interaction between Copper Chaperone Atox1 and Parkinson's Disease Protein α-Synuclein Includes Metal-Binding Sites and Occurs in Living Cells. ACS Chem Neurosci 2019; 10:4659-4668. [PMID: 31600047 DOI: 10.1021/acschemneuro.9b00476] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Alterations in copper ion homeostasis appear coupled to neurodegenerative disorders, but mechanisms are unknown. The cytoplasmic copper chaperone Atox1 was recently found to inhibit amyloid formation in vitro of α-synuclein, the amyloidogenic protein in Parkinson's disease. As α-synuclein may have copper-dependent functions, and free copper ions promote α-synuclein amyloid formation, it is important to characterize the Atox1 interaction with α-synuclein on a molecular level. Here we applied solution-state nuclear magnetic resonance spectroscopy, with isotopically labeled α-synuclein and Atox1, to define interaction regions in both proteins. The α-synuclein interaction interface includes the whole N-terminal part up to Gln24; in Atox1, residues around the copper-binding cysteines (positions 11-16) are mostly perturbed, but additional effects are also found for residues elsewhere in both proteins. Because α-synuclein is N-terminally acetylated in vivo, we established that Atox1 also inhibits amyloid formation of this variant in vitro, and proximity ligation in human cell lines demonstrated α-synuclein-Atox1 interactions in situ. Thus, this interaction may provide the direct link between copper homeostasis and amyloid formation in vivo.
Collapse
Affiliation(s)
- Istvan Horvath
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Stéphanie Blockhuys
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Darius Šulskis
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg 405 30, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg 405 30, Sweden
| | - Stellan Holgersson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Ranjeet Kumar
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Björn M. Burmann
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg 405 30, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg 405 30, Sweden
| | - Pernilla Wittung-Stafshede
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden
| |
Collapse
|
14
|
Abstract
Copper is a redox-active transition metal ion required for the function of many essential human proteins. For biosynthesis of proteins coordinating copper, the metal may bind before, during or after folding of the polypeptide. If the metal binds to unfolded or partially folded structures of the protein, such coordination may modulate the folding reaction. The molecular understanding of how copper is incorporated into proteins requires descriptions of chemical, thermodynamic, kinetic and structural parameters involved in the formation of protein-metal complexes. Because free copper ions are toxic, living systems have elaborate copper-transport systems that include particular proteins that facilitate efficient and specific delivery of copper ions to target proteins. Therefore, these pathways become an integral part of copper protein folding in vivo. This review summarizes biophysical-molecular in vitro work assessing the role of copper in folding and stability of copper-binding proteins as well as protein-protein copper exchange reactions between human copper transport proteins. We also describe some recent findings about the participation of copper ions and copper proteins in protein misfolding and aggregation reactions in vitro.
Collapse
|
15
|
Abstract
Protein misfolding in cells is avoided by a network of protein chaperones that detect misfolded or partially folded species. When proteins escape these control systems, misfolding may result in protein aggregation and amyloid formation. We here show that aggregation of the amyloidogenic protein α-synuclein (αS), the key player in Parkinson's disease, is controlled by the copper transport protein Atox1 in vitro. Copper ions are not freely available in the cellular environment, but when provided by Atox1, the resulting copper-dependent ternary complex blocks αS aggregation. Because the same inhibition was found for a truncated version of αS, lacking the C-terminal part, it appears that Atox1 interacts with the N-terminal copper site in αS. Metal-dependent chaperoning may be yet another manner in which cells control its proteome.
Collapse
|
16
|
González N, Arcos-López T, König A, Quintanar L, Menacho Márquez M, Outeiro TF, Fernández CO. Effects of alpha-synuclein post-translational modifications on metal binding. J Neurochem 2019; 150:507-521. [PMID: 31099098 DOI: 10.1111/jnc.14721] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/11/2019] [Accepted: 05/13/2019] [Indexed: 12/19/2022]
Abstract
Parkinson's disease is the second most common neurodegenerative disorder worldwide. Neurodegeneration in this pathology is characterized by the loss of dopaminergic neurons in the substantia nigra, coupled with cytoplasmic inclusions known as Lewy bodies containing α-synuclein. The brain is an organ that concentrates metal ions, and there is emerging evidence that a break-down in metal homeostasis may be a critical factor in a variety of neurodegenerative diseases. α-synuclein has emerged as an important metal-binding protein in the brain, whereas these interactions play an important role in its aggregation and might represent a link between protein aggregation, oxidative damage, and neuronal cell loss. Additionally, α-synuclein undergoes several post-translational modifications that regulate its structure and physiological function, and may be linked to the aggregation and/or oligomer formation. This review is focused on the interaction of this protein with physiologically relevant metal ions, highlighting the cases where metal-AS interactions profile as key modulators for its structural, aggregation, and membrane-binding properties. The impact of α-synuclein phosphorylation and N-terminal acetylation in the metal-binding properties of the protein are also discussed, underscoring a potential interplay between PTMs and metal ion binding in regulating α-synuclein physiological functions and its role in pathology. This article is part of the Special Issue "Synuclein".
Collapse
Affiliation(s)
- Nazareno González
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC), Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Rosario, Argentina
| | - Trinidad Arcos-López
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | - Annekatrin König
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, University of Göttingen, Göttingen, Germany
| | - Liliana Quintanar
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | - Mauricio Menacho Márquez
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC), Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Rosario, Argentina
| | - Tiago F Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, University of Göttingen, Göttingen, Germany.,Max Planck Institute for Experimental Medicine, Göttingen, Germany.,Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, UK
| | - Claudio O Fernández
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC), Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Rosario, Argentina.,Department of NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
| |
Collapse
|
17
|
Pan BB, Yang Y, Liu HZ, Li YH, Su XC. Coordination of Platinum to α-Synuclein Inhibits Filamentous Aggregation in Solution. Chembiochem 2019; 20:1953-1958. [PMID: 30958607 DOI: 10.1002/cbic.201900224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Indexed: 12/18/2022]
Abstract
Accumulation of filamentous aggregates of α-synuclein (AS) in Lewy bodies and neurites is characteristic of neurodegenerative diseases such as Parkinson's disease. Inhibition of AS fibrillation is helpful for understanding of AS aggregate structure and for developing chemical therapies. Herein, we report that the PtII -containing antitumor drug cisplatin suppresses filamentous aggregation of AS in solution. PtII thus contrasts strongly with reported transition-metal ions such as MnII , FeIII , and CuII , which accelerate AS aggregation. Interaction between PtII and the side chains of methionine and histidine residues was essential for inhibition of AS fibrillation. Binding of PtII to AS did not change the protein's overall random coil structure, as indicated by solution-state two-dimensional NMR and circular dichroism spectroscopy; and a solution of the AS⋅PtII complex remained free of filamentous aggregates. Our results constitute interesting new information about the biological chemistry of metal ions in Parkinson's disease and might open new lines of research into the suppression of filamentous aggregation.
Collapse
Affiliation(s)
- Bin-Bin Pan
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yin Yang
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Hui-Zhong Liu
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yi-Hua Li
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Xun-Cheng Su
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| |
Collapse
|
18
|
Martínez-Orozco H, Mariño L, Uceda AB, Ortega-Castro J, Vilanova B, Frau J, Adrover M. Nitration and Glycation Diminish the α-Synuclein Role in the Formation and Scavenging of Cu 2+-Catalyzed Reactive Oxygen Species. ACS Chem Neurosci 2019; 10:2919-2930. [PMID: 30973706 DOI: 10.1021/acschemneuro.9b00142] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Human α-synuclein is a small monomeric protein (140 residues) essential to maintain the function of the dopaminergic neurons and the neuronal redox balance. However, it holds a dark side since it is able to clump inside the neurons forming insoluble aggregates known as Lewy bodies, which are considered the hallmark of Parkinson's disease. Sporadic mutations and nonenzymatic post-translational modifications are well-known to stimulate the formation of Lewy bodies. Yet, the effect of nonenzymatic post-translational modifications on the function of α-synuclein has been studied less intense. Therefore, here we study how nitration and glycation mediated by methylglyoxal affect the redox features of α-synuclein. Both diminish the ability of α-synuclein to chelate Cu2+, except when Nε-(carboxyethyl)lysine or Nε-(carboxymethyl)lysine (two advanced glycation end products highly prevalent in vivo) are formed. This results in a lower capacity to prevent the Cu-catalyzed ascorbic acid degradation and to delay the formation of H2O2. However, only methylglyoxal was able to abolish the ability of α-synuclein to inhibit the free radical release. Both nitration and glycation enhanced the α-synuclein availability to be damaged by O2•-, although glycation made α-synuclein less reactive toward HO•. Our data represent the first report describing how nonenzymatic post-translational modifications might affect the redox function of α-synuclein, thus contributing to a better understanding of its pathological implications.
Collapse
Affiliation(s)
- Humberto Martínez-Orozco
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdISBa), Departament de Química, Universitat de les Illes Balears, Ctra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - Laura Mariño
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdISBa), Departament de Química, Universitat de les Illes Balears, Ctra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - Ana Belén Uceda
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdISBa), Departament de Química, Universitat de les Illes Balears, Ctra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - Joaquín Ortega-Castro
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdISBa), Departament de Química, Universitat de les Illes Balears, Ctra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - Bartolomé Vilanova
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdISBa), Departament de Química, Universitat de les Illes Balears, Ctra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - Juan Frau
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdISBa), Departament de Química, Universitat de les Illes Balears, Ctra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | - Miquel Adrover
- Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Institut de Recerca en Ciències de la Salut (IdISBa), Departament de Química, Universitat de les Illes Balears, Ctra. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| |
Collapse
|
19
|
De Gregorio G, Biasotto F, Hecel A, Luczkowski M, Kozlowski H, Valensin D. Structural analysis of copper(I) interaction with amyloid β peptide. J Inorg Biochem 2019; 195:31-38. [DOI: 10.1016/j.jinorgbio.2019.03.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 12/01/2022]
|
20
|
Atrián-Blasco E, Gonzalez P, Santoro A, Alies B, Faller P, Hureau C. Cu and Zn coordination to amyloid peptides: From fascinating chemistry to debated pathological relevance. Coord Chem Rev 2018; 375:38-55. [PMID: 30262932 DOI: 10.1016/j.ccr.2018.04.007] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Several diseases share misfolding of different peptides and proteins as a key feature for their development. This is the case of important neurodegenerative diseases such as Alzheimer's and Parkinson's diseases and type II diabetes mellitus. Even more, metal ions such as copper and zinc might play an important role upon interaction with amyloidogenic peptides and proteins, which could impact their aggregation and toxicity abilities. In this review, the different coordination modes proposed for copper and zinc with amyloid-β, α-synuclein and IAPP will be reviewed as well as their impact on the aggregation, and ROS production in the case of copper. In addition, a special focus will be given to the mutations that affect metal binding and lead to familial cases of the diseases. Different modifications of the peptides that have been observed in vivo and could be relevant for the coordination of metal ions are also described.
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
| | - Paulina Gonzalez
- Biometals and Biology Chemistry, Institut de Chimie (CNRS UMR7177), Université de Strasbourg, 4 rue B. Pascal, 67081 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Alice Santoro
- Biometals and Biology Chemistry, Institut de Chimie (CNRS UMR7177), Université de Strasbourg, 4 rue B. Pascal, 67081 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Bruno Alies
- Université de Bordeaux, ChemBioPharm INSERM U1212 CNRS UMR 5320, Bordeaux, France
| | - Peter Faller
- Biometals and Biology Chemistry, Institut de Chimie (CNRS UMR7177), Université de Strasbourg, 4 rue B. Pascal, 67081 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, 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
|
21
|
Miotto MC, Pavese MD, Quintanar L, Zweckstetter M, Griesinger C, Fernández CO. Bioinorganic Chemistry of Parkinson’s Disease: Affinity and Structural Features of Cu(I) Binding to the Full-Length β-Synuclein Protein. Inorg Chem 2017; 56:10387-10395. [DOI: 10.1021/acs.inorgchem.7b01292] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Marco C. Miotto
- Max Planck Laboratory
for Structural Biology, Chemistry and Molecular Biophysics of Rosario
and Instituto de Investigaciones para el Descubrimiento de Fármacos
de Rosario, Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK Rosario, Argentina
| | - Mayra D. Pavese
- Max Planck Laboratory
for Structural Biology, Chemistry and Molecular Biophysics of Rosario
and Instituto de Investigaciones para el Descubrimiento de Fármacos
de Rosario, Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK Rosario, Argentina
| | - Liliana Quintanar
- Centro de Investigación y de Estudios Avanzados, Av. Instituto Politécnico
Nacional 2508, 07360 D.F., México
| | - Markus Zweckstetter
- Department of NMR-based
Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, D-37077 Göttingen, Germany
- Deutches Zentrum für Neurodegenerative Erkrankungen, von-Siebold-Str. 3a, 37075 Göttingen, Germany
- Department of Neurology, University Medical Center Göttingen, University of Göttingen, Waldweg 33, 37073 Göttingen, Germany
| | - Christian Griesinger
- Department of NMR-based
Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, D-37077 Göttingen, Germany
| | - Claudio O. Fernández
- Max Planck Laboratory
for Structural Biology, Chemistry and Molecular Biophysics of Rosario
and Instituto de Investigaciones para el Descubrimiento de Fármacos
de Rosario, Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK Rosario, Argentina
- Department of NMR-based
Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, D-37077 Göttingen, Germany
| |
Collapse
|
22
|
Hecel A, De Ricco R, Valensin D. Influence of membrane environments and copper ions on the structural features of amyloidogenic proteins correlated to neurodegeneration. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.06.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
23
|
Coordination and redox properties of copper interaction with α-synuclein. J Inorg Biochem 2016; 163:292-300. [DOI: 10.1016/j.jinorgbio.2016.04.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/11/2016] [Accepted: 04/04/2016] [Indexed: 11/23/2022]
|
24
|
Role of N-terminal methionine residues in the redox activity of copper bound to alpha-synuclein. J Biol Inorg Chem 2016; 21:691-702. [DOI: 10.1007/s00775-016-1376-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 07/06/2016] [Indexed: 01/01/2023]
|
25
|
Toni M, Cioni C, De Angelis F, di Patti MCB. Synuclein expression in the lizard Anolis carolinensis. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2016; 202:577-95. [DOI: 10.1007/s00359-016-1108-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/09/2016] [Accepted: 06/26/2016] [Indexed: 12/30/2022]
|
26
|
Dell’Acqua S, Pirota V, Monzani E, Camponeschi F, De Ricco R, Valensin D, Casella L. Copper(I) Forms a Redox-Stable 1:2 Complex with α-Synuclein N-Terminal Peptide in a Membrane-Like Environment. Inorg Chem 2016; 55:6100-6. [DOI: 10.1021/acs.inorgchem.6b00641] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Simone Dell’Acqua
- Dipartimento
di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Valentina Pirota
- Dipartimento
di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Enrico Monzani
- Dipartimento
di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Francesca Camponeschi
- Dipartimento
di Biotecnologie, Chimica e Farmacia, Università di Siena, Via Aldo Moro
2, 53100 Siena, Italy
| | - Riccardo De Ricco
- Dipartimento
di Biotecnologie, Chimica e Farmacia, Università di Siena, Via Aldo Moro
2, 53100 Siena, Italy
| | - Daniela Valensin
- Dipartimento
di Biotecnologie, Chimica e Farmacia, Università di Siena, Via Aldo Moro
2, 53100 Siena, Italy
| | - Luigi Casella
- Dipartimento
di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
| |
Collapse
|
27
|
Dell'Acqua S, Pirota V, Anzani C, Rocco MM, Nicolis S, Valensin D, Monzani E, Casella L. Reactivity of copper-α-synuclein peptide complexes relevant to Parkinson's disease. Metallomics 2016; 7:1091-102. [PMID: 25865825 DOI: 10.1039/c4mt00345d] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by the presence of abnormal α-synuclein (αSyn) deposits in the brain. Alterations in metal homeostasis and metal-induced oxidative stress may play a crucial role in the aggregation of αSyn and, consequently, in the pathogenesis of PD. We have therefore investigated the capability of copper-αSyn6 and copper-αSyn15 peptide complexes, with the 1-6 and 1-15 terminal fragments of the protein, to promote redox reactions that can be harmful to other cellular components. The pseudo-tyrosinase activity of copper-αSyn complexes against catecholic (di-tert-butylcatechol (DTBCH2), 4-methylcatechol (4-MC)) and phenolic (phenol) substrates is lower compared to that of free copper(II). In particular, the rates (kcat) of DTBCH2 catalytic oxidation are 0.030 s(-1) and 0.009 s(-1) for the reaction promoted by free copper(II) and [Cu(2+)-αSyn15], respectively. On the other hand, HPLC/ESI-MS analysis of solutions of αSyn15 incubated with copper(II) and 4-MC showed that αSyn is competitively oxidized with remarkable formation of sulfoxide at Met1 and Met5 residues. Moreover, the sulfoxidation of methionine residues, which is related to the aggregation of αSyn, also occurs on peptides not directly bound to copper, indicating that external αSyn can also be oxidized by copper. Therefore, this study strengthens the hypothesis that copper plays an important role in oxidative damage of αSyn which is proposed to be strongly related to the etiology of PD.
Collapse
Affiliation(s)
- Simone Dell'Acqua
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Pedersen JT, Chen SW, Borg CB, Ness S, Bahl JM, Heegaard NHH, Dobson CM, Hemmingsen L, Cremades N, Teilum K. Amyloid-β and α-Synuclein Decrease the Level of Metal-Catalyzed Reactive Oxygen Species by Radical Scavenging and Redox Silencing. J Am Chem Soc 2016; 138:3966-9. [PMID: 26967463 PMCID: PMC4827876 DOI: 10.1021/jacs.5b13577] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
![]()
The formation of
reactive oxygen species (ROS) is linked to the
pathogenesis of neurodegenerative diseases. Here we have investigated
the effect of soluble and aggregated amyloid-β (Aβ) and
α-synuclein (αS), associated with Alzheimer’s and
Parkinson’s diseases, respectively, on the Cu2+-catalyzed
formation of ROS in vitro in the presence of a biological
reductant. We find that the levels of ROS, and the rate by which ROS
is generated, are significantly reduced when Cu2+ is bound
to Aβ or αS, particularly when they are in their oligomeric
or fibrillar forms. This effect is attributed to a combination of
radical scavenging and redox silencing mechanisms. Our findings suggest
that the increase in ROS associated with the accumulation of aggregated
Aβ or αS does not result from a particularly ROS-active
form of these peptides, but rather from either a local increase of
Cu2+ and other ROS-active metal ions in the aggregates
or as a downstream consequence of the formation of the pathological
amyloid structures.
Collapse
Affiliation(s)
| | - Serene W Chen
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Christian B Borg
- Department of Biology, University of Copenhagen , 2200 Copenhagen, Denmark
| | - Samuel Ness
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Justyna M Bahl
- Department of Autoimmunology and Biomarkers, Statens Serum Institut , 2300 Copenhagen, Denmark.,Department of Clinical Biochemistry, Clinical Institute, Odense University Hospital, University of Southern Denmark , 5000 Odense, Denmark
| | - Niels H H Heegaard
- Department of Autoimmunology and Biomarkers, Statens Serum Institut , 2300 Copenhagen, Denmark.,Department of Clinical Biochemistry, Clinical Institute, Odense University Hospital, University of Southern Denmark , 5000 Odense, Denmark
| | - Christopher M Dobson
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | | | - Nunilo Cremades
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom.,Biocomputation and Complex Systems Physics Institute (BIFI)-Joint Unit BIFI-IQFR (CSIC), University of Zaragoza , 50018 Zaragoza, Spain
| | - Kaare Teilum
- Department of Biology, University of Copenhagen , 2200 Copenhagen, Denmark
| |
Collapse
|
29
|
McDowall JS, Brown DR. Alpha-synuclein: relating metals to structure, function and inhibition. Metallomics 2016; 8:385-97. [DOI: 10.1039/c6mt00026f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
30
|
De Ricco R, Valensin D, Dell'Acqua S, Casella L, Hureau C, Faller P. Copper(I/II), α/β-Synuclein and Amyloid-β: Menage à Trois? Chembiochem 2015; 16:2319-28. [PMID: 26338312 DOI: 10.1002/cbic.201500425] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Indexed: 12/12/2022]
Abstract
Copper binding to α-synuclein (aS) and to amyloid-β (Ab) has been connected to Parkinson's and Alzheimer's disease (AD), respectively, because Cu ions can modulate the peptide aggregation, and these Cu ⋅ peptide complexes can catalyse the production of reactive oxygen species (ROS). In a significant proportion of AD brains, aggregation of aS and Ab has been detected, and it was proposed that Ab and aS interact with each other. Thus, we investigated the potential interactions of Ab and aS through their binding of copper(I) and copper(II). Additionally, β-synuclein (bS) was investigated, due to its additional methionine residue, a potential Cu(I) ligand. We found that: 1) the peptides containing the Cu-binding domains Ab1-16, aS1-15 and bS1-15 have similar affinities towards Cu(II) and towards Cu(I), with Ab1-16 being slightly stronger, 2) in the case of Cu(I), the additional Met residue in bS1-15 increased the affinity slightly, 3) the exchange of Cu(I/II) between the two peptides is rapid (≤ ms), 4) a/bS1-15 and Ab1-16 form a heterodimeric complex with Cu(II), 5) Cu(I) probably promotes a transient ternary complex, 6) the different Cu(I/II) coordination of Ab1-16, aS1-15 and bS1-15 impacts the capacity to produce ROS and to oxidise catechol, and 7) when Ab1-16, aS1-15 and Cu are present, the ROS production more closely resembles that by Ab1-16. The work gives insights into the coordination chemistry of these related peptides, and the relevance of coordination differences, the ternary complex and ROS production are discussed.
Collapse
Affiliation(s)
- Riccardo De Ricco
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, B. P. 44099, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, 205 Route de Narbonne, B. P. 44099, 31077, Toulouse Cedex 4, France.,Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, 53100, Siena, Italy
| | - Daniela Valensin
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, 53100, Siena, Italy.
| | - Simone Dell'Acqua
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Luigi Casella
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Christelle Hureau
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, B. P. 44099, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, 205 Route de Narbonne, B. P. 44099, 31077, Toulouse Cedex 4, France
| | - Peter Faller
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, B. P. 44099, 31077, Toulouse Cedex 4, France. .,Université de Toulouse, UPS, INPT, 205 Route de Narbonne, B. P. 44099, 31077, Toulouse Cedex 4, France.
| |
Collapse
|