1
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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.
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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
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2
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La Penna G, Morante S. Aggregates Sealed by Ions. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2340:309-341. [PMID: 35167080 DOI: 10.1007/978-1-0716-1546-1_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The chapter draws a line connecting some recent results where the role of ions is found essential in sealing more or less pre-organized assemblies of macromolecules. We draw some dots along the line that starts from the effect of the ionic atmosphere and ends with the chemical bonds formed by multivalent ions acting as bridges between macromolecules. Many of these dots involve structurally disordered peptides and disordered regions of proteins. A broad perspective of the role of multivalent ions in assisting the assembly process, shifting population in polymorphic states, and sealing protein aggregates, is suggested.
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Affiliation(s)
- Giovanni La Penna
- Institute for Chemistry of Organo-Metallic Compounds, National Research Council of Italy, Florence, Italy.
| | - Silvia Morante
- Department of Physics, University of Roma Tor Vergata, Roma, Italy
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3
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X-Ray Absorption Spectroscopy Measurements of Cu-ProIAPP Complexes at Physiological Concentrations. CONDENSED MATTER 2019. [DOI: 10.3390/condmat4010013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The amyloidogenic islet amyloid polypeptide (IAPP) and the associated pro-peptide ProIAPP1–48 are involved in cell death in type 2 diabetes mellitus. It has been observed that interactions of this peptide with metal ions have an impact on the cytotoxicity of the peptides as well as on their deposition in the form of amyloid fibrils. In particular, Cu(II) seems to inhibit amyloid fibril formation, thus suggesting that Cu homeostasis imbalance may be involved in the pathogenesis of type 2 diabetes mellitus. We performed X-ray Absorption Spectroscopy (XAS) measurements of Cu(II)-ProIAPP complexes under near-physiological (10 μM), equimolar concentrations of Cu(II) and peptide. Such low concentrations were made accessible to XAS measurements owing to the use of the High Energy Resolved Fluorescence Detection XAS facility recently installed at the ESRF beamline BM16 (FAME-UHD). Our preliminary data show that XAS measurements at micromolar concentrations are feasible and confirm that ProIAPP1–48-Cu(II) binding at near-physiological conditions can be detected.
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4
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Markham KA, Roseman GP, Linsley RB, Lee HW, Millhauser GL. Molecular Features of the Zn 2+ Binding Site in the Prion Protein Probed by 113Cd NMR. Biophys J 2019; 116:610-620. [PMID: 30678993 DOI: 10.1016/j.bpj.2019.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 01/03/2019] [Accepted: 01/04/2019] [Indexed: 10/27/2022] Open
Abstract
The cellular prion protein (PrPC) is a zinc-binding protein that contributes to the regulation of Zn2+ and other divalent species of the central nervous system. Zn2+ coordinates to the flexible, N-terminal repeat region of PrPC and drives a tertiary contact between this repeat region and a well-defined cleft of the C-terminal domain. The tertiary structure promoted by Zn2+ is thought to regulate inherent PrPC toxicity. Despite the emerging consensus regarding the interaction between Zn2+ and PrPC, there is little direct spectroscopic confirmation of the metal ion's coordination details. Here, we address this conceptual gap by using Cd2+ as a surrogate for Zn2+. NMR finds that Cd2+ binds exclusively to the His imidazole side chains of the repeat segment, with a dissociation constant of ∼1.2 mM, and promotes an N-terminal-C-terminal cis interaction very similar to that observed with Zn2+. Analysis of 113Cd NMR spectra of PrPC, along with relevant control proteins and peptides, suggests that coordination of Cd2+ in the full-length protein is consistent with a three- or four-His geometry. Examination of the mutation E199K in mouse PrPC (E200K in humans), responsible for inherited Creutzfeldt-Jakob disease, finds that the mutation lowers metal ion affinity and weakens the cis interaction. These findings not only provide deeper insight into PrPC metal ion coordination but they also suggest new perspectives on the role of familial mutations in prion disease.
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Affiliation(s)
- Kate A Markham
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California
| | - Graham P Roseman
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California
| | - Richard B Linsley
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California
| | - Hsiau-Wei Lee
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California
| | - Glenn L Millhauser
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California.
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5
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Wineman-Fisher V, Miller Y. Insight into a New Binding Site of Zinc Ions in Fibrillar Amylin. ACS Chem Neurosci 2017; 8:2078-2087. [PMID: 28692245 DOI: 10.1021/acschemneuro.7b00221] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Amylin peptides are secreted together with insulin and zinc ions from pancreatic β-cells. Under unknown conditions, the amylin peptides aggregate to produce oligomers and fibrils, and in some cases Zn2+ ions can bind to amylin peptides to form Zn2+-aggregate complexes. Consequently, these aggregates lead to the death of the β-cells and a decrease in insulin, which is one of the symptoms of type-2 diabetes (T2D). Therefore, it is crucial to investigate the binding sites of the Zn2+ ions in fibrillary amylin. It was previously found by in vitro and simulation studies that Zn2+ ion binds to two or four His residues in the turn domain of fibrillary amylin. In the current study, we present a new Zn2+ binding site in the N-terminus of fibrillary amylin with three different coordination modes. Our simulations showed that Zn2+ ions bind to polymorphic amylin fibrils with a preference to bind to four Cys residues rather than two Cys residues of two neighboring amylin monomers. The new binding site leads to conformational changes, increases the number of polymorphic states, and demonstrates the existence of competition between various binding sites. Our study provides insight into the molecular mechanisms through which Zn2+ ions that play a critical role in amylin aggregation can bind to amylin and promote amylin aggregation in T2D.
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Affiliation(s)
- Vered Wineman-Fisher
- Department of Chemistry, Ben-Gurion University of the Negev, P.O. Box 653, Be’er Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science
and Technology, Ben-Gurion University of the Negev, Be’er Sheva 84105, Israel
| | - Yifat Miller
- Department of Chemistry, Ben-Gurion University of the Negev, P.O. Box 653, Be’er Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science
and Technology, Ben-Gurion University of the Negev, Be’er Sheva 84105, Israel
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6
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Zn(II) - pramlintide: Stability, binding sites and unexpected aggregation. J Inorg Biochem 2017; 174:150-155. [DOI: 10.1016/j.jinorgbio.2017.06.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 05/31/2017] [Accepted: 06/20/2017] [Indexed: 11/23/2022]
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7
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Mizuno D, Kawahara M. Link Between Metal Homeostasis and Neurodegenerative Diseases: Crosstalk of Metals and Amyloidogenic Proteins at the Synapse. Metallomics 2017. [DOI: 10.1007/978-4-431-56463-8_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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8
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Sóvágó I, Várnagy K, Lihi N, Grenács Á. Coordinating properties of peptides containing histidyl residues. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.04.015] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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9
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Adam P, Křížková S, Heger Z, Babula P, Pekařík V, Vaculovičoá M, Gomes CM, Kizek R, Adam V. Metallothioneins in Prion- and Amyloid-Related Diseases. J Alzheimers Dis 2016; 51:637-56. [DOI: 10.3233/jad-150984] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Pavlína Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Soňa Křížková
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Zbyněk Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice, Brno, Czech Republic
| | - Vladimír Pekařík
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Markéta Vaculovičoá
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Cláudio M. Gomes
- Faculdade de Ciências Universidade de Lisboa, Biosystems and Integrative Sciences Institute and Department of Chemistry and Biochemistry, Universidade de Lisboa, Campo Grande, Lisboa, Portugal
| | - René Kizek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Vojtěch Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
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10
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De Santis E, Minicozzi V, Morante S, Rossi GC, Stellato F. The role of metals in protein conformational disorders - The case of prion protein and Aβ -peptide. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/689/1/012028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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Wineman-Fisher V, Miller Y. Effect of Zn2+ ions on the assembly of amylin oligomers: insight into the molecular mechanisms. Phys Chem Chem Phys 2016; 18:21590-9. [DOI: 10.1039/c6cp04105a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
High and low concentrations of Zn2+ ions decrease the polymorphism of amylin oligomers and do not affect their cross β-beta structures.
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Affiliation(s)
- Vered Wineman-Fisher
- Department of Chemistry
- Ben-Gurion University of the Negev
- Be'er Sheva 84105
- Israel
- Ilse Katz Institute for Nanoscale Science and Technology
| | - Yifat Miller
- Department of Chemistry
- Ben-Gurion University of the Negev
- Be'er Sheva 84105
- Israel
- Ilse Katz Institute for Nanoscale Science and Technology
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12
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De Santis E, Minicozzi V, Proux O, Rossi G, Silva KI, Lawless MJ, Stellato F, Saxena S, Morante S. Cu(II)-Zn(II) Cross-Modulation in Amyloid-Beta Peptide Binding: An X-ray Absorption Spectroscopy Study. J Phys Chem B 2015; 119:15813-20. [PMID: 26646533 DOI: 10.1021/acs.jpcb.5b10264] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work we analyze at a structural level the mechanism by which Cu(II) and Zn(II) ions compete for binding to the Aβ peptides that is involved in the etiology of Alzheimer's disease. We collected X-ray absorption spectroscopy data on samples containing Aβ with Cu and Zn at different concentration ratios. We show that the order in which metals are added to the peptide solution matters and that, when Zn is added first, it prevents Cu from binding. On the contrary, when Cu is added first, it does not (completely) prevent Zn binding to Aβ peptides. Our analysis suggests that Cu and Zn ions are coordinated to different numbers of histidine residues depending on the [ion]:[peptide] concentration ratio.
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Affiliation(s)
- Emiliano De Santis
- Department of Physics and INFN, University of Rome , Tor Vergata, Rome 00133, Italy
| | - Velia Minicozzi
- Department of Physics and INFN, University of Rome , Tor Vergata, Rome 00133, Italy
| | - Olivier Proux
- Observatoire des Sciences de l'Univers de Grenoble , Grenoble 38400, France
| | - Giancarlo Rossi
- Department of Physics and INFN, University of Rome , Tor Vergata, Rome 00133, Italy.,Centro Fermi , Rome 00184, Italy
| | - K Ishara Silva
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States
| | - Matthew J Lawless
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States
| | - Francesco Stellato
- Department of Physics and INFN, University of Rome , Tor Vergata, Rome 00133, Italy
| | - Sunil Saxena
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States
| | - Silvia Morante
- Department of Physics and INFN, University of Rome , Tor Vergata, Rome 00133, Italy
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13
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La Penna G, Minicozzi V, Morante S, Rossi GC, Stellato F. A first-principle calculation of the XANES spectrum of Cu2+ in water. J Chem Phys 2015; 143:124508. [DOI: 10.1063/1.4931808] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- G. La Penna
- CNR–Institute for Chemistry of Organometallic Compounds, Sesto Fiorentino 50019, Italy
| | - V. Minicozzi
- INFN, Rome “Tor Vergata,” Rome 00133, Italy
- Department of Physics, University of Rome “Tor Vergata,” Rome 00133, Italy
| | - S. Morante
- INFN, Rome “Tor Vergata,” Rome 00133, Italy
- Department of Physics, University of Rome “Tor Vergata,” Rome 00133, Italy
| | - G. C. Rossi
- INFN, Rome “Tor Vergata,” Rome 00133, Italy
- Department of Physics, University of Rome “Tor Vergata,” Rome 00133, Italy
- Centro Studi e Ricerche “Enrico Fermi,” Roma 00184, Italy
| | - F. Stellato
- INFN, Rome “Tor Vergata,” Rome 00133, Italy
- Department of Physics, University of Rome “Tor Vergata,” Rome 00133, Italy
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14
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Pan K, Yi CW, Chen J, Liang Y. Zinc significantly changes the aggregation pathway and the conformation of aggregates of human prion protein. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2015; 1854:907-18. [DOI: 10.1016/j.bbapap.2015.04.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Revised: 04/09/2015] [Accepted: 04/21/2015] [Indexed: 12/27/2022]
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15
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Rowinska-Zyrek M, Salerno M, Kozlowski H. Neurodegenerative diseases – Understanding their molecular bases and progress in the development of potential treatments. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.03.026] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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16
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Luczkowski M, De Ricco R, Stachura M, Potocki S, Hemmingsen L, Valensin D. Metal ion mediated transition from random coil to β-sheet and aggregation of Bri2-23, a natural inhibitor of Aβ aggregation. Metallomics 2015; 7:478-90. [DOI: 10.1039/c4mt00274a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Soft metal ion binding enforces critical rearrangement of the structure of Bri2-23, a natural inhibitor of Aβ aggregation, thus shifting its solution behavior to a self aggregating system.
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Affiliation(s)
| | - Riccardo De Ricco
- Department of Biotechnology Chemistry and Pharmacy University of Siena
- 53100 Siena, Italy
| | - Monika Stachura
- Department of Chemistry
- University of Copenhagen
- 2100 Copenhagen, Denmark
| | | | - Lars Hemmingsen
- Department of Chemistry
- University of Copenhagen
- 2100 Copenhagen, Denmark
| | - Daniela Valensin
- Department of Biotechnology Chemistry and Pharmacy University of Siena
- 53100 Siena, Italy
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17
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Stellato F, Minicozzi V, Millhauser GL, Pascucci M, Proux O, Rossi GC, Spevacek A, Morante S. Copper-zinc cross-modulation in prion protein binding. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2014; 43:631-42. [PMID: 25395329 DOI: 10.1007/s00249-014-0993-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 09/30/2014] [Accepted: 10/17/2014] [Indexed: 11/30/2022]
Abstract
In this paper we report a systematic XAS study of a set of samples in which Cu(II) was progressively added to complexes in which Zn(II) was bound to the tetra-octarepeat portion of the prion protein. This work extends previous EPR and XAS analysis in which, in contrast, the effect of adding Zn(II) to Cu(II)-tetra-octarepeat complexes was investigated. Detailed structural analysis of the XAS spectra taken at both the Cu and Zn K-edge when the two metals are present at different relative concentrations revealed that Zn(II) and Cu(II) ions compete for binding to the tetra-octarepeat peptide by cross-regulating their relative binding modes. We show that the specific metal-peptide coordination mode depends not only, as expected, on the relative metal concentrations, but also on whether Zn(II) or Cu(II) was first bound to the peptide. In particular, it seems that the Zn(II) binding mode in the absence of Cu(II) is able to promote the formation of small peptide clusters in which triplets of tetra-octarepeats are bridged by pairs of Zn ions. When Cu(II) is added, it starts competing with Zn(II) for binding, disrupting the existing peptide cluster arrangement, despite the fact that Cu(II) is unable to completely displace Zn(II). These results may have a bearing on our understanding of peptide-aggregation processes and, with the delicate cross-regulation balancing we have revealed, seem to suggest the existence of an interesting, finely tuned interplay among metal ions affecting protein binding, capable of providing a mechanism for regulation of metal concentration in cells.
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Affiliation(s)
- Francesco Stellato
- Department of Physics and INFN, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy
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18
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Watt NT, Griffiths HH, Hooper NM. Lipid rafts: linking prion protein to zinc transport and amyloid-β toxicity in Alzheimer's disease. Front Cell Dev Biol 2014; 2:41. [PMID: 25364748 PMCID: PMC4206978 DOI: 10.3389/fcell.2014.00041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 08/05/2014] [Indexed: 01/01/2023] Open
Abstract
Dysregulation of neuronal zinc homeostasis plays a major role in many processes related to brain aging and neurodegenerative diseases, including Alzheimer's disease (AD). Yet, despite the critical role of zinc in neuronal function, the cellular mechanisms underpinning its homeostatic control are far from clear. We reported that the cellular prion protein (PrPC) is involved in the uptake of zinc into neurons. This PrPC-mediated zinc influx required the metal-binding octapeptide repeats in PrPC and the presence of the zinc permeable AMPA channel with which PrPC directly interacted. Together with the observation that PrPC is evolutionarily related to the ZIP family of zinc transporters, these studies indicate that PrPC plays a key role in neuronal zinc homeostasis. Therefore, PrPC could contribute to cognitive health and protect against age-related zinc dyshomeostasis but PrPC has also been identified as a receptor for amyloid-β oligomers which accumulate in the brains of those with AD. We propose that the different roles that PrPC has are due to its interaction with different ligands and/or co-receptors in lipid raft-based signaling/transport complexes.
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Affiliation(s)
- Nicole T Watt
- Division of Cardiovascular and Diabetes Research, Multidisciplinary Cardiovascular Research Centre, University of Leeds Leeds, UK
| | - Heledd H Griffiths
- Faculty of Medical and Human Sciences, Institute of Brain, Behaviour and Mental Health, University of Manchester Manchester, UK
| | - Nigel M Hooper
- Faculty of Medical and Human Sciences, Institute of Brain, Behaviour and Mental Health, University of Manchester Manchester, UK
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19
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Silva KI, Michael BC, Geib SJ, Saxena S. ESEEM analysis of multi-histidine Cu(II)-coordination in model complexes, peptides, and amyloid-β. J Phys Chem B 2014; 118:8935-44. [PMID: 25014537 PMCID: PMC4120975 DOI: 10.1021/jp500767n] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We validate the use of ESEEM to predict the number of (14)N nuclei coupled to a Cu(II) ion by the use of model complexes and two small peptides with well-known Cu(II) coordination. We apply this method to gain new insight into less explored aspects of Cu(II) coordination in amyloid-β (Aβ). Aβ has two coordination modes of Cu(II) at physiological pH. A controversy has existed regarding the number of histidine residues coordinated to the Cu(II) ion in component II, which is dominant at high pH (∼8.7) values. Importantly, with an excess amount of Zn(II) ions, as is the case in brain tissues affected by Alzheimer's disease, component II becomes the dominant coordination mode, as Zn(II) selectively substitutes component I bound to Cu(II). We confirm that component II only contains single histidine coordination, using ESEEM and set of model complexes. The ESEEM experiments carried out on systematically (15)N-labeled peptides reveal that, in component II, His 13 and His 14 are more favored as equatorial ligands compared to His 6. Revealing molecular level details of subcomponents in metal ion coordination is critical in understanding the role of metal ions in Alzheimer's disease etiology.
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Affiliation(s)
- K Ishara Silva
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States
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20
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Russino D, McDonald E, Hejazi L, Hanson GR, Jones CE. The tachykinin peptide neurokinin B binds copper forming an unusual [CuII(NKB)2] complex and inhibits copper uptake into 1321N1 astrocytoma cells. ACS Chem Neurosci 2013; 4:1371-81. [PMID: 23875773 DOI: 10.1021/cn4000988] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Neurokinin B (NKB) is a member of the tachykinin family of neuropeptides that have neuroinflammatory, neuroimmunological, and neuroprotective functions. In a neuroprotective role, tachykinins can help protect cells against the neurotoxic processes observed in Alzheimer's disease. A change in copper homeostasis is a clear feature of Alzheimer's disease, and the dysregulation may be a contributory factor in toxicity. Copper has recently been shown to interact with neurokinin A and neuropeptide γ and can lead to generation of reactive oxygen species and peptide degradation, which suggests that copper may have a place in tachykinin function and potentially misfunction. To explore this, we have utilized a range of spectroscopic techniques to show that NKB, but not substance P, can bind Cu(II) in an unusual [Cu(II)(NKB)2] neutral complex that utilizes two N-terminal amine and two imidazole nitrogen ligands (from each molecule of NKB) and the binding substantially alters the structure of the peptide. Using 1321N1 astrocytoma cells, we show that copper can enter the cells and subsequently open plasma membrane calcium channels but when bound to neurokinin B copper ion uptake is inhibited. This data suggests a novel role for neurokinin B in protecting cells against copper-induced calcium changes and implicates the peptide in synaptic copper homeostasis.
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Affiliation(s)
- Debora Russino
- The School of Science
and Health, The University of Western Sydney, Locked bag 1797, Penrith, New South Wales 2759, Australia
| | - Elle McDonald
- The School of Science
and Health, The University of Western Sydney, Locked bag 1797, Penrith, New South Wales 2759, Australia
| | - Leila Hejazi
- Mass Spectroscopy Laboratory, The University of Western Sydney, Locked bag 1797,
Penrith, New South Wales 2759, Australia
| | - Graeme R. Hanson
- Centre for Advanced Imaging, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Christopher E. Jones
- The School of Science
and Health, The University of Western Sydney, Locked bag 1797, Penrith, New South Wales 2759, Australia
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Calderón-Garcidueñas L, Cross JV, Franco-Lira M, Aragón-Flores M, Kavanaugh M, Torres-Jardón R, Chao CK, Thompson C, Chang J, Zhu H, D'Angiulli A. Brain immune interactions and air pollution: macrophage inhibitory factor (MIF), prion cellular protein (PrP(C)), Interleukin-6 (IL-6), interleukin 1 receptor antagonist (IL-1Ra), and interleukin-2 (IL-2) in cerebrospinal fluid and MIF in serum differentiate urban children exposed to severe vs. low air pollution. Front Neurosci 2013; 7:183. [PMID: 24133408 PMCID: PMC3794301 DOI: 10.3389/fnins.2013.00183] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 09/23/2013] [Indexed: 02/05/2023] Open
Abstract
Mexico City Metropolitan Area children chronically exposed to high concentrations of air pollutants exhibit an early brain imbalance in genes involved in oxidative stress, inflammation, innate and adaptive immune responses along with accumulation of misfolded proteins observed in the early stages of Alzheimer and Parkinson's diseases. A complex modulation of serum cytokines and chemokines influences children's brain structural and gray/white matter volumetric responses to air pollution. The search for biomarkers associating systemic and CNS inflammation to brain growth and cognitive deficits in the short term and neurodegeneration in the long-term is our principal aim. We explored and compared a profile of cytokines, chemokines (Multiplexing LASER Bead Technology) and Cellular prion protein (PrP(C)) in normal cerebro-spinal-fluid (CSF) of urban children with high vs. low air pollution exposures. PrP(C) and macrophage inhibitory factor (MIF) were also measured in serum. Samples from 139 children ages 11.91 ± 4.2 years were measured. Highly exposed children exhibited significant increases in CSF MIF (p = 0.002), IL6 (p = 0.006), IL1ra (p = 0.014), IL-2 (p = 0.04), and PrP(C) (p = 0.039) vs. controls. MIF serum concentrations were higher in exposed children (p = 0.009). Our results suggest CSF as a MIF, IL6, IL1Ra, IL-2, and PrP(C) compartment that can possibly differentiate air pollution exposures in children. MIF, a key neuro-immune mediator, is a potential biomarker bridge to identify children with CNS inflammation. Fine tuning of immune-to-brain communication is crucial to neural networks appropriate functioning, thus the short and long term effects of systemic inflammation and dysregulated neural immune responses are of deep concern for millions of exposed children. Defining the linkage and the health consequences of the brain / immune system interactions in the developing brain chronically exposed to air pollutants ought to be of pressing importance for public health.
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Affiliation(s)
- Lilian Calderón-Garcidueñas
- Department of Biomedical Sciences, The Center for Structural and Functional Neurosciences, The University of Montana Missoula, MT, USA ; Hospital Central Militar, Secretaria de la Defensa Nacional Mexico City, Mexico
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Silva KI, Saxena S. Zn(II) ions substantially perturb Cu(II) ion coordination in amyloid-β at physiological pH. J Phys Chem B 2013; 117:9386-94. [PMID: 23841511 DOI: 10.1021/jp406067n] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The interaction of Cu(II) and Zn(II) ions with amyloid-β (Aβ) plays an important role in the etiology of Alzheimer's disease. We describe the use of electron spin resonance (ESR) to measure metal-binding competition between Cu(II) and Zn(II) in amyloid-β at physiological pH. Continuous wave ESR measurements show that the affinity of Cu(II) toward Aβ(1-16) is significantly higher than that of Zn(II) at physiological pH. Importantly, of the two known Cu(II) coordination modes in Aβ, component I and component II, Zn(II) displaces Cu(II) only from component I. Our results indicate that at excess amounts of Zn(II) component II becomes the most dominant coordination mode. This observation is important as Aβ aggregates in the brain contain a high Zn(II) ion concentration. In order to determine details of the metal ion competition, electron spin echo envelope modulation experiments were carried out on Aβ variants that were systematically (15)N labeled. In the presence of Zn(II), most peptides use His 14 as an equatorial ligand to bind Cu(II) ions. Interestingly, Zn(II) ions completely substitute Cu(II) ions that are simultaneously coordinated to His 6 and His 13. Furthermore, in the presence of Zn(II), the proportion of Cu(II) ions that are simultaneously coordinated to His 13 and His 14 is increased. On the basis of our results we suggest that His 13 plays a critical role in modulating the morphology of Aβ aggregates.
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Affiliation(s)
- K Ishara Silva
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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Hare DJ, Grubman A, Ryan TM, Lothian A, Liddell JR, Grimm R, Matsuda T, Doble PA, Cherny RA, Bush AI, White AR, Masters CL, Roberts BR. Profiling the iron, copper and zinc content in primary neuron and astrocyte cultures by rapid online quantitative size exclusion chromatography-inductively coupled plasma-mass spectrometry. Metallomics 2013; 5:1656-62. [DOI: 10.1039/c3mt00227f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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25
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Furlan S, La Penna G. Metal ions and protons compete for ligand atoms in disordered peptides: Examples from computer simulations of copper binding to the prion tandem repeat. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.03.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Arena G, La Mendola D, Pappalardo G, Sóvágó I, Rizzarelli E. Interactions of Cu2+ with prion family peptide fragments: Considerations on affinity, speciation and coordination. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.03.038] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Copper, zinc and iron in neurodegenerative diseases (Alzheimer's, Parkinson's and prion diseases). Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.03.013] [Citation(s) in RCA: 306] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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28
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Watt NT, Taylor DR, Kerrigan TL, Griffiths HH, Rushworth JV, Whitehouse IJ, Hooper NM. Prion protein facilitates uptake of zinc into neuronal cells. Nat Commun 2012; 3:1134. [PMID: 23072804 PMCID: PMC3493655 DOI: 10.1038/ncomms2135] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Accepted: 09/14/2012] [Indexed: 12/30/2022] Open
Abstract
Zinc is released into the synaptic cleft upon exocytotic stimuli, although the mechanism for its reuptake into neurons is unresolved. Here we show that the cellular prion protein enhances the uptake of zinc into neuronal cells. This prion-protein-mediated zinc influx requires the octapeptide repeats and amino-terminal polybasic region in the prion protein, but not its endocytosis. Selective antagonists of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionate (AMPA) receptors block the prion protein-mediated zinc uptake, and the prion protein co-immunoprecipitates with both GluA1 and GluA2 AMPA receptor subunits. Zinc-sensitive intracellular tyrosine phosphatase activity is decreased in cells expressing prion protein and increased in the brains of prion-protein-null mice, providing evidence of a physiological consequence of this process. Prion protein-mediated zinc uptake is ablated in cells expressing familial associated mutants of the protein and in prion-infected cells. These data suggest that alterations in the cellular prion protein-mediated zinc uptake may contribute to neurodegeneration in prion and other neurodegenerative diseases.
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Affiliation(s)
- Nicole T. Watt
- Faculty of Biological Sciences, School of Molecular and Cellular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - David R. Taylor
- Faculty of Biological Sciences, School of Molecular and Cellular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - Talitha L. Kerrigan
- Division of Cardiovascular and Neuronal Remodelling, Leeds Institute of Genetics, Health and Therapeutics, University of Leeds, Leeds LS2 9JT, UK
- Present address: Faculty of Medicine and Dentistry, Henry Wellcome LINE and MRC Centre for Synaptic Plasticity, University of Bristol, Bristol BS1 3NY, UK
| | - Heledd H. Griffiths
- Faculty of Biological Sciences, School of Molecular and Cellular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - Jo V. Rushworth
- Faculty of Biological Sciences, School of Molecular and Cellular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - Isobel J. Whitehouse
- Faculty of Biological Sciences, School of Molecular and Cellular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - Nigel M. Hooper
- Faculty of Biological Sciences, School of Molecular and Cellular Biology, University of Leeds, Leeds LS2 9JT, UK
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Giannozzi P, Jansen K, Penna GL, Minicozzi V, Morante S, Rossi G, Stellato F. Zn induced structural aggregation patterns of β-amyloid peptides by first-principle simulations and XAS measurements. Metallomics 2012; 4:156-65. [DOI: 10.1039/c2mt00148a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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