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Wimalasena K, Adetuyi O, Eldani M. Metabolic energy decline coupled dysregulation of catecholamine metabolism in physiologically highly active neurons: implications for selective neuronal death in Parkinson's disease. Front Aging Neurosci 2024; 16:1339295. [PMID: 38450382 PMCID: PMC10914975 DOI: 10.3389/fnagi.2024.1339295] [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: 11/15/2023] [Accepted: 02/09/2024] [Indexed: 03/08/2024] Open
Abstract
Parkinson's disease (PD) is an age-related irreversible neurodegenerative disease which is characterized as a progressively worsening involuntary movement disorder caused by the loss of dopaminergic (DA) neurons in substantia nigra pars compacta (SNpc). Two main pathophysiological features of PD are the accumulation of inclusion bodies in the affected neurons and the predominant loss of neuromelanin-containing DA neurons in substantia nigra pars compacta (SNpc) and noradrenergic (NE) neurons in locus coeruleus (LC). The inclusion bodies contain misfolded and aggregated α-synuclein (α-Syn) fibrils known as Lewy bodies. The etiology and pathogenic mechanisms of PD are complex, multi-dimensional and associated with a combination of environmental, genetic, and other age-related factors. Although individual factors associated with the pathogenic mechanisms of PD have been widely investigated, an integration of the findings to a unified causative mechanism has not been envisioned. Here we propose an integrated mechanism for the degeneration of DA neurons in SNpc and NE neurons in LC in PD, based on their unique high metabolic activity coupled elevated energy demand, using currently available experimental data. The proposed hypothetical mechanism is primarily based on the unique high metabolic activity coupled elevated energy demand of these neurons. We reason that the high vulnerability of a selective group of DA neurons in SNpc and NE neurons in LC in PD could be due to the cellular energy modulations. Such cellular energy modulations could induce dysregulation of DA and NE metabolism and perturbation of the redox active metal homeostasis (especially copper and iron) in these neurons.
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Affiliation(s)
- Kandatege Wimalasena
- Department of Chemistry and Biochemistry, Wichita State University, Wichita, KS, United States
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2
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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.
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3
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Bacchella C, Dell'Acqua S, Nicolis S, Monzani E, Casella L. The reactivity of copper complexes with neuronal peptides promoted by catecholamines and its impact on neurodegeneration. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Bacchella C, Gentili S, Mozzi SI, Monzani E, Casella L, Tegoni M, Dell’Acqua S. Role of the Cysteine in R3 Tau Peptide in Copper Binding and Reactivity. Int J Mol Sci 2022; 23:ijms231810726. [PMID: 36142637 PMCID: PMC9503722 DOI: 10.3390/ijms231810726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/07/2022] [Accepted: 09/10/2022] [Indexed: 11/16/2022] Open
Abstract
Tau is a widespread neuroprotein that regulates the cytoskeleton assembly. In some neurological disorders, known as tauopathies, tau is dissociated from the microtubule and forms insoluble neurofibrillary tangles. Tau comprises four pseudorepeats (R1-R4), containing one (R1, R2, R4) or two (R3) histidines, that potentially act as metal binding sites. Moreover, Cys291 and Cys322 in R2 and R3, respectively, might have an important role in protein aggregation, through possible disulfide bond formation, and/or affecting the binding and reactivity of redox-active metal ions, as copper. We, therefore, compare the interaction of copper with octadeca-R3-peptide (R3C) and with the mutant containing an alanine residue (R3A) to assess the role of thiol group. Spectrophotometric titrations allow to calculate the formation constant of the copper(I) complexes, showing a remarkable stronger interaction in the case of R3C (l log Kf = 13.4 and 10.5 for copper(I)-R3C and copper(I)-R3A, respectively). We also evaluate the oxidative reactivity associated to these copper complexes in the presence of dopamine and ascorbate. Both R3A and R3C peptides increase the capability of copper to oxidize catechols, but copper-R3C displays a peculiar mechanism due to the presence of cysteine. HPLC-MS analysis shows that cysteine can form disulfide bonds and dopamine-Cys covalent adducts, with potential implication in tau aggregation process.
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Affiliation(s)
- Chiara Bacchella
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Silvia Gentili
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Sara Ida Mozzi
- 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
| | - Luigi Casella
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
- Correspondence:
| | - Matteo Tegoni
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Simone Dell’Acqua
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
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5
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Abstract
Copper is well known for its antimicrobial and antiviral properties. Under aerobic conditions, copper toxicity relies in part on the production of reactive oxygen species (ROS), especially in the periplasmic compartment. However, copper is significantly more toxic under anaerobic conditions, in which ROS cannot be produced. This toxicity has been proposed to arise from the inactivation of proteins through mismetallations. Here, using the bacterium Escherichia coli, we discovered that copper treatment under anaerobic conditions leads to a significant increase in protein aggregation. In vitro experiments using E. coli lysates and tightly controlled redox conditions confirmed that treatment with Cu+ under anaerobic conditions leads to severe ROS-independent protein aggregation. Proteomic analysis of aggregated proteins revealed an enrichment of cysteine- and histidine-containing proteins in the Cu+-treated samples, suggesting that nonspecific interactions of Cu+ with these residues are likely responsible for the observed protein aggregation. In addition, E. coli strains lacking the cytosolic chaperone DnaK or trigger factor are highly sensitive to copper stress. These results reveal that bacteria rely on these chaperone systems to protect themselves against Cu-mediated protein aggregation and further support our finding that Cu toxicity is related to Cu-induced protein aggregation. Overall, our work provides new insights into the mechanism of Cu toxicity and the defense mechanisms that bacteria employ to survive.
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6
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Abstract
Copper ions bind to biomolecules (e.g., peptides and proteins) playing an essential role in many biological and physiological pathways in the human body. The resulting complexes may contribute to the initiation of neurodegenerative diseases, cancer, and bacterial and viral diseases, or act as therapeutics. Some compounds can chemically damage biological macromolecules and initiate the development of pathogenic states. Conversely, a number of these compounds may have antibacterial, antiviral, and even anticancer properties. One of the most significant current discussions in Cu biochemistry relates to the mechanisms of the positive and negative actions of Cu ions based on the generation of reactive oxygen species, including radicals that can interact with DNA molecules. This review aims to analyze various peptide–copper complexes and the mechanism of their action.
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Cukierman DS, Lázaro DF, Sacco P, Ferreira PR, Diniz R, Fernández CO, Outeiro TF, Rey NA. X1INH, an improved next-generation affinity-optimized hydrazonic ligand, attenuates abnormal copper(I)/copper(II)-α-Syn interactions and affects protein aggregation in a cellular model of synucleinopathy. Dalton Trans 2021; 49:16252-16267. [PMID: 32391542 DOI: 10.1039/d0dt01138j] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Although normal aging presents an accumulation of copper and iron in the brain, this becomes more relevant in neurodegeneration. α-Synuclein (α-Syn) misfolding has long been linked with the development of Parkinson's disease (PD). Copper binding promotes aggregation of α-Syn, as well as generalized oxidative stress. In this sense, the use of therapies that target metal dyshomeostasis has been in focus in the past years. Metal-Protein Attenuating Compounds (MPACs) are moderate chelators that aim at disrupting specific, abnormal metal-protein interactions. Our research group has now established that N-acylhydrazones compose a set of truly encouraging MPACs for the bioinorganic management of metal-enhanced aggregopathies. In the present work, a novel ligand, namely 1-methyl-1H-imidazole-2-carboxaldehyde isonicotinoyl hydrazone (X1INH), is reported. We describe solution studies on the interaction and affinity of this compound for copper(ii) ions showing that a fine tuning of metal-affinity was achieved. A series of in vitro biophysical NMR experiments were performed in order to assess the X1INH ability to compete with α-Syn monomers for the binding of both copper(i) and copper(ii) ions, which are central in PD pathology. A preference for copper(i) has been observed. X1INH is less toxic to human neuroglioma (H4) cells in comparison to structure-related compounds. Finally, we show that treatment with X1INH results in a higher number of smaller, less compact inclusions in a well-established model of α-Syn aggregation. Thus, X1INH constitutes a promising MPAC for the treatment of Parkinson's disease.
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Affiliation(s)
- Daphne S Cukierman
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, 22451-045, Rio de Janeiro, RJ, Brazil.
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8
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Oxidase Reactivity of Cu II Bound to N-Truncated Aβ Peptides Promoted by Dopamine. Int J Mol Sci 2021; 22:ijms22105190. [PMID: 34068879 PMCID: PMC8155989 DOI: 10.3390/ijms22105190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 12/18/2022] Open
Abstract
The redox chemistry of copper(II) is strongly modulated by the coordination to amyloid-β peptides and by the stability of the resulting complexes. Amino-terminal copper and nickel binding motifs (ATCUN) identified in truncated Aβ sequences starting with Phe4 show very high affinity for copper(II) ions. Herein, we study the oxidase activity of [Cu–Aβ4−x] and [Cu–Aβ1−x] complexes toward dopamine and other catechols. The results show that the CuII–ATCUN site is not redox-inert; the reduction of the metal is induced by coordination of catechol to the metal and occurs through an inner sphere reaction. The generation of a ternary [CuII–Aβ–catechol] species determines the efficiency of the oxidation, although the reaction rate is ruled by reoxidation of the CuI complex. In addition to the N-terminal coordination site, the two vicinal histidines, His13 and His14, provide a second Cu-binding motif. Catechol oxidation studies together with structural insight from the mixed dinuclear complexes Ni/Cu–Aβ4−x reveal that the His-tandem is able to bind CuII ions independently of the ATCUN site, but the N-terminal metal complexation reduces the conformational mobility of the peptide chain, preventing the binding and oxidative reactivity toward catechol of CuII bound to the secondary site.
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9
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Ibrahim MM, El-Kemary MA, Al-Harbi SA, Al-Saidi HM, Sallam SA, Ramadan AEMM. Synthesis and Structural Characterization of Pyridine-based Mn(III), Fe(III), and Co(III) Complexes as SOD Mimics and BSA Binding Studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129706] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Bacchella C, Dell'Acqua S, Nicolis S, Monzani E, Casella L. A Cu-bis(imidazole) Substrate Intermediate Is the Catalytically Competent Center for Catechol Oxidase Activity of Copper Amyloid-β. Inorg Chem 2021; 60:606-613. [PMID: 33405903 PMCID: PMC8023651 DOI: 10.1021/acs.inorgchem.0c02243] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
Interaction
of copper ions with Aβ peptides alters the redox
activity of the metal ion and can be associated with neurodegeneration.
Many studies deal with the characterization of the copper binding
mode responsible for the reactivity. Oxidation experiments of dopamine
and related catechols by copper(II) complexes with the N-terminal
amyloid-β peptides Aβ16 and Aβ9, and the Aβ16[H6A] and Aβ16[H13A]
mutant forms, both in their free amine and N-acetylated forms show
that efficient reactivity requires the oxygenation of a CuI-bis(imidazole) complex with a bound substrate. Therefore, the active
intermediate for catechol oxidation differs from the proposed “in-between
state” for the catalytic oxidation of ascorbate. During the
catechol oxidation process, hydrogen peroxide and superoxide anion
are formed but give only a minor contribution to the reaction. The redox cycling of copper bound to
amyloid-β peptide
requires the generation of a Cu(I)-Aβ-catecholate complex. When
copper(II) is confined in the N-terminal portion, its reduction is
slow and causes a shift toward a bis-His coordination environment.
The addition of catechol to the Cu(I)-bis(imidazole) complex results
in a faster reaction with dioxygen. The reactive species for catechol
oxidation does not correspond to the proposed “in-between state”
for ascorbate oxidation.
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Affiliation(s)
- Chiara Bacchella
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, Pavia 27100, Italy
| | - Simone Dell'Acqua
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, Pavia 27100, Italy
| | - Stefania Nicolis
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, Pavia 27100, Italy
| | - Enrico Monzani
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, Pavia 27100, Italy
| | - Luigi Casella
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, Pavia 27100, Italy
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11
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Zhang M, Li M, Yang Y, Xu X, Song J, Wang Z, Wang S. Synthesis of Nopinone-Based Quinazolin-2-amine Fluorescent Probe for Detection of Cu 2+ and Its Application Research. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202008049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Chin TY, Wang CC, Ma KH, Kuo CW, Hu MK, Chueh SH. Antioxidative effect of DJ-1 is enhanced in NG108-15 cells by DPMQ-induced copper influx. Am J Physiol Cell Physiol 2020; 320:C635-C651. [PMID: 33356946 DOI: 10.1152/ajpcell.00515.2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Disruption of copper homeostasis is closely involved in neurodegenerative disorders. This study examined whether a hybrid copper-binding compound, (E)-2-(4-(dimethylamino)phenylimino)methyl)quinolin-8-ol (DPMQ), is able to protect NG108-15 cells against oxidative stress. We found that treatment of cells with rotenone or hydrogen peroxide increased cellular oxidative stress and resulted in mitochondrial dysfunction and apoptosis. The cellular levels of Nrf2 and the Cu2+ chaperone DJ-1 were also decreased. These oxidative detrimental effects were all inhibited when cells were cotreated with DPMQ. DPMQ increased cellular Cu2+ content, DJ-1 protein level, superoxide dismutase (SOD) activity, and Nrf2 nuclear translocation under basal state. The activity of SOD decreased under redox imbalance and this decrease was blocked by DPMQ treatment, while the protein level of SOD1 remained unaltered regardless of the oxidative stress and DPMQ treatment. Using endogenous proteins, coimmunoprecipitation showed that DJ-1 bound with SOD1 and Nrf2 individually. The amount of Nrf2, bound to DJ-1, consistently reflected its cellular level, while the amount of SOD1, bound to DJ-1, was potentiated by DPMQ, being greater in the basal state than under redox imbalance. Simultaneous inclusion of nonpermeable Cu2+ chelator tetrathiomolybdate or triethylenetetramine during DPMQ treatment blocked all aforementioned effects of DPMQ, showing that the dependency of the effect of DPMQ on extracellular Cu2+. In addition, silencing of DJ-1 blocked the protection of DPMQ against oxidative stress. Taken all together, our results suggest that DPMQ stabilizes DJ-1 in a Cu2+-dependent manner, which then brings about SOD1 activation and Nrf2 nuclear translocation; these together alleviate cellular oxidative stress.
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Affiliation(s)
- Ting-Yu Chin
- Department of Bioscience Technology, Chung Yuan Christian University, Chungli, Taiwan
| | - Che-Chuan Wang
- Department of Neurosurgery, Chi Mei Medical Center, Tainan, Taiwan.,Center for General Education, Southern Taiwan University of Science and Technology, Tainan, Taiwan
| | - Kuo-Hsing Ma
- Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan
| | - Chia-Wei Kuo
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Ming-Kuan Hu
- School of Pharmacy, National Defense Medical Center, Taipei, Taiwan
| | - Sheau-Huei Chueh
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
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13
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Calvo JS, Mulpuri NV, Dao A, Qazi NK, Meloni G. Membrane insertion exacerbates the α-Synuclein-Cu(II) dopamine oxidase activity: Metallothionein-3 targets and silences all α-synuclein-Cu(II) complexes. Free Radic Biol Med 2020; 158:149-161. [PMID: 32712192 PMCID: PMC7484060 DOI: 10.1016/j.freeradbiomed.2020.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 07/03/2020] [Accepted: 07/05/2020] [Indexed: 10/23/2022]
Abstract
Copper binding to α-synuclein (α-Syn), the major component of intracellular Lewy body inclusions in substantia nigra dopaminergic neurons, potentiate its toxic redox-reactivity and plays a detrimental role in the etiology of Parkinson disease (PD). Soluble α-synuclein-Cu(II) complexes possess dopamine oxidase activity and catalyze ROS production in the presence of biological reducing agents via Cu(II)/Cu(I) redox cycling. These metal-centered redox reactivities harmfully promote the oxidation and oligomerization of α-Syn. While this chemistry has been investigated on recombinantly expressed soluble α-Syn, in vivo, α-Syn is acetylated at its N-terminus and is present in equilibrium between soluble and membrane-bound forms. This post-translational modification and membrane-binding alter the Cu(II) coordination environment and binding modes and are expected to affect the α-Syn-Cu(II) reactivity. In this work, we first investigated the reactivity of acetylated and membrane-bound complexes, and subsequently addressed whether the brain metalloprotein Zn7-metallothionein-3 (Zn7MT-3) possesses a multifaceted-role in targeting these aberrant copper interactions and consequent reactivity. Through biochemical characterization of the reactivity of the non-acetylated/N-terminally acetylated soluble or membrane-bound α-Syn-Cu(II) complexes towards dopamine, oxygen, and ascorbate, we reveal that membrane insertion dramatically exacerbates the catechol oxidase-like reactivity of α-Syn-Cu(II) as a result of a change in the Cu(II) coordination environment, thereby potentiating its toxicity. Moreover, we show that Zn7MT-3 can efficiently target all α-Syn-Cu(II) complexes through Cu(II) removal, preventing their deleterious redox activities. We demonstrate that the Cu(II) reduction by the thiolate ligands of Zn7MT-3 and the formation of Cu(I)4Zn4MT-3 featuring an unusual redox-inert Cu(I)4-thiolate cluster is the molecular mechanism responsible for the protective effect exerted by MT-3 towards α-Syn-Cu(II). This work provides the molecular basis for new therapeutic interventions to control the deleterious bioinorganic chemistry of α-Syn-Cu(II).
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Affiliation(s)
- Jenifer S Calvo
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Neha V Mulpuri
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Alex Dao
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Nabeeha K Qazi
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Gabriele Meloni
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, TX, 75080, USA.
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14
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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
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15
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Bacchella C, Nicolis S, Dell'Acqua S, Rizzarelli E, Monzani E, Casella L. Membrane Binding Strongly Affecting the Dopamine Reactivity Induced by Copper Prion and Copper/Amyloid-β (Aβ) Peptides. A Ternary Copper/Aβ/Prion Peptide Complex Stabilized and Solubilized in Sodium Dodecyl Sulfate Micelles. Inorg Chem 2019; 59:900-912. [PMID: 31869218 DOI: 10.1021/acs.inorgchem.9b03153] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The combination between dyshomeostatic levels of catecholamine neurotransmitters and redox-active metals such as copper and iron exacerbates the oxidative stress condition that typically affects neurodegenerative diseases. We report a comparative study of the oxidative reactivity of copper complexes with amyloid-β (Aβ40) and the prion peptide fragment 76-114 (PrP76-114), containing the high-affinity binding site, toward dopamine and 4-methylcatechol, in aqueous buffer and in sodium dodecyl sulfate micelles, as a model membrane environment. The competitive oxidative and covalent modifications undergone by the peptides were also evaluated. The high binding affinity of Cu/peptide to micelles and lipid membranes leads to a strong reduction (Aβ40) and quenching (PrP76-114) of the oxidative efficiency of the binary complexes and to a stabilization and redox silencing of the ternary complex CuII/Aβ40/PrP76-114, which is highly reactive in solution. The results improve our understanding of the pathological and protective effects associated with these complexes, depending on the physiological environment.
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Affiliation(s)
- Chiara Bacchella
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
| | - Stefania Nicolis
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
| | - Simone Dell'Acqua
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
| | - Enrico Rizzarelli
- Istituto di Biostrutture e Bioimmagini , Consiglio Nazionale delle Ricerche , Via P. Gaifami 18 , 95125 Catania , Italy
| | - Enrico Monzani
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
| | - Luigi Casella
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
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16
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Bacchella C, Gentili S, Bellotti D, Quartieri E, Draghi S, Baratto MC, Remelli M, Valensin D, Monzani E, Nicolis S, Casella L, Tegoni M, Dell'Acqua S. Binding and Reactivity of Copper to R 1 and R 3 Fragments of tau Protein. Inorg Chem 2019; 59:274-286. [PMID: 31820933 DOI: 10.1021/acs.inorgchem.9b02266] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Tau protein is present in significant amounts in neurons, where it contributes to the stabilization of microtubules. Insoluble neurofibrillary tangles of tau are associated with several neurological disorders known as tauopathies, among which is Alzheimer's disease. In neurons, tau binds tubulin through its microtubule binding domain which comprises four imperfect repeats (R1-R4). The histidine residues contained in these fragments are potential binding sites for metal ions and are located close to the regions that drive the formation of amyloid aggregates of tau. In this study, we present a detailed characterization through potentiometric and spectroscopic methods of the binding of copper in both oxidation states to R1 and R3 peptides, which contain one and two histidine residues, respectively. We also evaluate how the redox cycling of copper bound to tau peptides can mediate oxidation that can potentially target exogenous substrates such as neuronal catecholamines. The resulting quinone oxidation products undergo oligomerization and can competitively give post-translational peptide modifications yielding catechol adducts at amino acid residues. The presence of His-His tandem in the R3 peptide strongly influences both the binding of copper and the reactivity of the resulting copper complex. In particular, the presence of the two adjacent histidines makes the copper(I) binding to R3 much stronger than in R1. The copper-R3 complex is also much more active than the copper-R1 complex in promoting oxidative reactions, indicating that the two neighboring histidines activate copper as a catalyst in molecular oxygen activation reactions.
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Affiliation(s)
- Chiara Bacchella
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
| | - Silvia Gentili
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , Università di Parma , Parco Area delle Scienze 11/A , 43124 Parma , Italy
| | - Denise Bellotti
- Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Ferrara , Via Luigi Borsari 46 , 44121 Ferrara , Italy
| | - Eleonora Quartieri
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , Università di Parma , Parco Area delle Scienze 11/A , 43124 Parma , Italy
| | - Sara Draghi
- Dipartimento di Biotecnologie, Chimica e Farmacia , Università di Siena , Via A. Moro 2 , 53100 , Siena , Italy
| | - Maria Camilla Baratto
- Dipartimento di Biotecnologie, Chimica e Farmacia , Università di Siena , Via A. Moro 2 , 53100 , Siena , Italy
| | - Maurizio Remelli
- Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Ferrara , Via Luigi Borsari 46 , 44121 Ferrara , Italy
| | - Daniela Valensin
- Dipartimento di Biotecnologie, Chimica e Farmacia , Università di Siena , Via A. Moro 2 , 53100 , Siena , Italy
| | - Enrico Monzani
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
| | - Stefania Nicolis
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
| | - Luigi Casella
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
| | - Matteo Tegoni
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , Università di Parma , Parco Area delle Scienze 11/A , 43124 Parma , Italy
| | - Simone Dell'Acqua
- Dipartimento di Chimica , Università di Pavia , Via Taramelli 12 , 27100 Pavia , Italy
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17
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Saporito-Magriñá CM, Musacco-Sebio RN, Andrieux G, Kook L, Orrego MT, Tuttolomondo MV, Desimone MF, Boerries M, Borner C, Repetto MG. Copper-induced cell death and the protective role of glutathione: the implication of impaired protein folding rather than oxidative stress. Metallomics 2019; 10:1743-1754. [PMID: 30311620 DOI: 10.1039/c8mt00182k] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Copper (Cu) is a bioelement essential for a myriad of enzymatic reactions, which when present in high concentration leads to cytotoxicity. Whereas Cu toxicity is usually assumed to originate from the metal's ability to enhance lipid peroxidation, the role of oxidative stress has remained uncertain since no antioxidant therapy has ever been effective. Here we show that Cu overload induces cell death independently of the metal's ability to oxidize the intracellular milieu. In fact, cells neither lose control of their thiol homeostasis until briefly before the onset of cell death, nor trigger a consistent antioxidant response. As expected, glutathione (GSH) protects the cell from Cu-mediated cytotoxicity but, surprisingly, fully independent of its reactive thiol. Moreover, the oxidation state of extracellular Cu is irrelevant as cells accumulate the metal as cuprous ions. We provide evidence that cell death is driven by the interaction of cuprous ions with proteins which impairs protein folding and promotes aggregation. Consequently, cells mostly react to Cu by mounting a heat shock response and trying to restore protein homeostasis. The protective role of GSH is based on the binding of cuprous ions, thus preventing the metal interaction with proteins. Due to the high intracellular content of GSH, it is depleted near the Cu entry site, and hence Cu can interact with proteins and cause aggregation and cytotoxicity immediately below the plasma membrane.
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Affiliation(s)
- Christian Martín Saporito-Magriñá
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Junin 956, C1113AAD, Buenos Aires, Argentina.
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18
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Capucciati A, Galliano M, Bubacco L, Zecca L, Casella L, Monzani E, Nicolis S. Neuronal Proteins as Targets of 3-Hydroxykynurenine: Implications in Neurodegenerative Diseases. ACS Chem Neurosci 2019; 10:3731-3739. [PMID: 31298828 DOI: 10.1021/acschemneuro.9b00265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The neurotoxic activity of the tryptophan metabolite 3-hydroxykynurenine (3OHKyn) in neurodegenerative disorders, such as Parkinson's and Alzheimer's diseases, is related to oxidative stress and 3OHKyn interaction with cellular proteins. The pattern of protein modification induced by 3OHKyn involves the nucleophilic side chains of Cys, His, and Lys residues, similarly to the one promoted by dopamine and other catecholamines. In the present work, we have analyzed the reactivity of 3OHKyn toward the neuronal targets α-synuclein (and its N-terminal fragments 1-6 and 1-15) and amyloid-β peptides (1-16 and 1-28) and characterized the resulting conjugates through spectrometric (LC-MS/MS) and spectroscopic (UV-vis, fluorescence, NMR) techniques. The amino acid residues of α-synuclein and amyloid-β peptides involved in derivatizations by 3OHKyn and its autoxidation products (belonging to the xanthommatin family) are Lys and His, respectively. The pattern of protein modification is expanded in the conjugates obtained in the presence of the metal ions copper(II) or iron(III), reflecting a more oxidizing environment that in addition to adducts with protein/peptide residues also favors the fragmentation of the protein. These results open the perspective to using the 3OHKyn-protein/peptide synthetic conjugates to explore their competence to activate microglia cell cultures as well as to unravel their role in neuroinflammatory conditions.
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Affiliation(s)
| | - Monica Galliano
- Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy
| | - Luigi Bubacco
- Department of Biology, University of Padova, 35121 Padova, Italy
| | - Luigi Zecca
- Institute of Biomedical Technologies, National Research Council of Italy, 20090 Segrate, Milano, Italy
| | - Luigi Casella
- Department of Chemistry, University of Pavia, 27100 Pavia, Italy
| | - Enrico Monzani
- Department of Chemistry, University of Pavia, 27100 Pavia, Italy
| | - Stefania Nicolis
- Department of Chemistry, University of Pavia, 27100 Pavia, Italy
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19
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Ilyechova EY, Miliukhina IV, Karpenko MN, Orlov IA, Puchkova LV, Samsonov SA. Case of Early-Onset Parkinson's Disease in a Heterozygous Mutation Carrier of the ATP7B Gene. J Pers Med 2019; 9:jpm9030041. [PMID: 31426520 PMCID: PMC6789574 DOI: 10.3390/jpm9030041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/10/2019] [Accepted: 08/13/2019] [Indexed: 02/04/2023] Open
Abstract
In this paper, we report a clinically proven case of Parkinson’s disease (PD) with early onset in a patient who is a heterozygous mutation carrier of ATP7B (the Wilson’s disease gene). The patient was observed from 2011 to 2018 in the Center for Neurodegenerative Diseases, Institute of Experimental Medicine (St. Petersburg, Russia). During this period, the patient displayed aggravation of PD clinical symptoms that were accompanied by a decrease in the ceruloplasmin concentration (from 0.33 to 0.27 g/L) and an increase in serum nonceruloplasmin copper, which are typical of the late stages of Wilson’s disease. It was found that one of the alleles of exon 14 in the ATP7B gene, which partially codes of the nucleotide-binding domain (N-domain), carries a mutation not previously reported corresponding to Cys1079Gly substitution. Alignment of the ATP7B N-domain amino acid sequences of representative vertebrate species has shown that the Cys at 1079 position is conserved throughout the evolution. Molecular dynamic analysis of a polypeptide with Cys1079Gly substitution showed that the mutation causes profound conformational changes in the N-domain, which could potentially lead to impairment of its functions. The role of ATP7B gene mutations in PD development is discussed.
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Affiliation(s)
- Ekaterina Y Ilyechova
- International Research Laboratory of Trace Elements Metabolism, ITMO University, Kronverksky av., 49, St. Petersburg 197101, Russia
- Department of Molecular Genetics, Institute of Experimental Medicine, Pavlov str., 12, St. Petersburg 197376, Russia
- Biophysics Department, Peter the Great St. Petersburg Polytechnic University, Politehknicheskay str., 29, St. Petersburg 195251, Russia
| | - Irina V Miliukhina
- Centre for Neurodegenerative diseases, Institute of Experimental Medicine, Maluy av., Petrogradskiy district, 13, St. Petersburg 197198, Russia
| | - Marina N Karpenko
- Department of Physiology, Institute of Experimental Medicine, Pavlov str., 12, St. Petersburg 197376, Russia
| | - Iurii A Orlov
- International Research Laboratory of Trace Elements Metabolism, ITMO University, Kronverksky av., 49, St. Petersburg 197101, Russia
| | - Ludmila V Puchkova
- International Research Laboratory of Trace Elements Metabolism, ITMO University, Kronverksky av., 49, St. Petersburg 197101, Russia.
- Department of Molecular Genetics, Institute of Experimental Medicine, Pavlov str., 12, St. Petersburg 197376, Russia.
- Biophysics Department, Peter the Great St. Petersburg Polytechnic University, Politehknicheskay str., 29, St. Petersburg 195251, Russia.
| | - Sergey A Samsonov
- International Research Laboratory of Trace Elements Metabolism, ITMO University, Kronverksky av., 49, St. Petersburg 197101, Russia
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza str., 63, 80-308 Gdańsk, Poland
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20
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Monzani E, Nicolis S, Dell'Acqua S, Capucciati A, Bacchella C, Zucca FA, Mosharov EV, Sulzer D, Zecca L, Casella L. Dopamin, oxidativer Stress und Protein‐Chinonmodifikationen bei Parkinson und anderen neurodegenerativen Erkrankungen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201811122] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Enrico Monzani
- Department of ChemistryUniversity of Pavia 27100 Pavia Italien
| | | | | | | | | | - Fabio A. Zucca
- Institute of Biomedical TechnologiesNational Research Council of Italy Segrate (Mailand) Italien
| | - Eugene V. Mosharov
- Department of PsychiatryColumbia University Medical CenterNew York State Psychiatric Institute New York NY USA
- Departments Neurology, PharmacologyColumbia University Medical Center New York NY USA
| | - David Sulzer
- Department of PsychiatryColumbia University Medical CenterNew York State Psychiatric Institute New York NY USA
- Departments Neurology, PharmacologyColumbia University Medical Center New York NY USA
| | - Luigi Zecca
- Institute of Biomedical TechnologiesNational Research Council of Italy Segrate (Mailand) Italien
- Department of PsychiatryColumbia University Medical CenterNew York State Psychiatric Institute New York NY USA
| | - Luigi Casella
- Department of ChemistryUniversity of Pavia 27100 Pavia Italien
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21
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Monzani E, Nicolis S, Dell'Acqua S, Capucciati A, Bacchella C, Zucca FA, Mosharov EV, Sulzer D, Zecca L, Casella L. Dopamine, Oxidative Stress and Protein-Quinone Modifications in Parkinson's and Other Neurodegenerative Diseases. Angew Chem Int Ed Engl 2019; 58:6512-6527. [PMID: 30536578 DOI: 10.1002/anie.201811122] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/10/2018] [Indexed: 12/19/2022]
Abstract
Dopamine (DA) is the most important catecholamine in the brain, as it is the most abundant and the precursor of other neurotransmitters. Degeneration of nigrostriatal neurons of substantia nigra pars compacta in Parkinson's disease represents the best-studied link between DA neurotransmission and neuropathology. Catecholamines are reactive molecules that are handled through complex control and transport systems. Under normal conditions, small amounts of cytosolic DA are converted to neuromelanin in a stepwise process involving melanization of peptides and proteins. However, excessive cytosolic or extraneuronal DA can give rise to nonselective protein modifications. These reactions involve DA oxidation to quinone species and depend on the presence of redox-active transition metal ions such as iron and copper. Other oxidized DA metabolites likely participate in post-translational protein modification. Thus, protein-quinone modification is a heterogeneous process involving multiple DA-derived residues that produce structural and conformational changes of proteins and can lead to aggregation and inactivation of the modified proteins.
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Affiliation(s)
- Enrico Monzani
- Department of Chemistry, University of Pavia, 27100, Pavia, Italy
| | - Stefania Nicolis
- Department of Chemistry, University of Pavia, 27100, Pavia, Italy
| | | | | | - Chiara Bacchella
- Department of Chemistry, University of Pavia, 27100, Pavia, Italy
| | - Fabio A Zucca
- Institute of Biomedical Technologies, National Research Council of Italy, Segrate (Milano), Italy
| | - Eugene V Mosharov
- Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute, New York, NY, USA
| | - David Sulzer
- Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute, New York, NY, USA.,Departments of Neurology and Pharmacology, Columbia University Medical Center, New York, NY, USA
| | - Luigi Zecca
- Institute of Biomedical Technologies, National Research Council of Italy, Segrate (Milano), Italy.,Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute, New York, NY, USA
| | - Luigi Casella
- Department of Chemistry, University of Pavia, 27100, Pavia, Italy
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22
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Yamada Y, Prosser RA. Copper in the suprachiasmatic circadian clock: A possible link between multiple circadian oscillators. Eur J Neurosci 2018; 51:47-70. [PMID: 30269387 DOI: 10.1111/ejn.14181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 09/05/2018] [Accepted: 09/17/2018] [Indexed: 01/07/2023]
Abstract
The mammalian circadian clock in the suprachiasmatic nucleus (SCN) is very robust, able to coordinate our daily physiological and behavioral rhythms with exquisite accuracy. Simultaneously, the SCN clock is highly sensitive to environmental timing cues such as the solar cycle. This duality of resiliency and sensitivity may be sustained in part by a complex intertwining of three cellular oscillators: transcription/translation, metabolic/redox, and membrane excitability. We suggest here that one of the links connecting these oscillators may be forged from copper (Cu). Cellular Cu levels are highly regulated in the brain and peripherally, and Cu affects cellular metabolism, redox state, cell signaling, and transcription. We have shown that both Cu chelation and application induce nighttime phase shifts of the SCN clock in vitro and that these treatments affect glutamate, N-methyl-D-aspartate receptor, and associated signaling processes differently. More recently we found that Cu induces mitogen-activated protein kinase-dependent phase shifts, while the mechanisms by which Cu removal induces phase shifts remain unclear. Lastly, we have found that two Cu transporters are expressed in the SCN, and that one of these transporters (ATP7A) exhibits a day/night rhythm. Our results suggest that Cu homeostasis is tightly regulated in the SCN, and that changes in Cu levels may serve as a time cue for the circadian clock. We discuss these findings in light of the existing literature and current models of multiple coupled circadian oscillators in the SCN.
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Affiliation(s)
- Yukihiro Yamada
- Department of Biochemistry & Cellular and Molecular Biology, NeuroNET Research Center, University of Tennessee, Knoxville, Tennessee
| | - Rebecca A Prosser
- Department of Biochemistry & Cellular and Molecular Biology, NeuroNET Research Center, University of Tennessee, Knoxville, Tennessee
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23
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Limphaibool N, Iwanowski P, Holstad MJV, Perkowska K. Parkinsonism in Inherited Metabolic Disorders: Key Considerations and Major Features. Front Neurol 2018; 9:857. [PMID: 30369906 PMCID: PMC6194353 DOI: 10.3389/fneur.2018.00857] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 09/24/2018] [Indexed: 12/18/2022] Open
Abstract
Parkinson's Disease (PD) is a common neurodegenerative disorder manifesting as reduced facilitation of voluntary movements. Extensive research over recent decades has expanded our insights into the pathogenesis of the disease, where PD is indicated to result from multifactorial etiological factors involving environmental contributions in genetically predisposed individuals. There has been considerable interest in the association between neurological manifestations in PD and in inherited metabolic disorders (IMDs), which are genetic disorders characterized by a deficient activity in the pathways of intermediary metabolism leading to multiple-system manifestations. In addition to the parallel in various clinical features, there is increasing evidence for the notion that genetic mutations underlying IMDs may increase the risk of PD development. This review highlights the recent advances in parkinsonism in patients with IMDs, with the primary objective to improve the understanding of the overlapping pathogenic pathways and clinical presentations in both disorders. We discuss the genetic convergence and disruptions in biochemical mechanisms which may point to clues surrounding pathogenesis-targeted treatment and other promising therapeutic strategies in the future.
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Affiliation(s)
| | - Piotr Iwanowski
- Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland
| | | | - Katarzyna Perkowska
- Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland
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24
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Abbaoui A, Gamrani H. Neuronal, astroglial and locomotor injuries in subchronic copper intoxicated rats are repaired by curcumin: A possible link with Parkinson's disease. Acta Histochem 2018; 120:542-550. [PMID: 29954586 DOI: 10.1016/j.acthis.2018.06.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/19/2018] [Accepted: 06/21/2018] [Indexed: 01/05/2023]
Abstract
We aim herein to assess the neurotoxic effects of subchronic Cu-exposition (0125%) for 6 weeks on dopaminergic and astroglial systems then locomotor activity in rats as well as the probable therapeutic efficiency of curcumin-I (30 mg/kg B.W.). We found that intoxicated rats showed a significant impairment of Tyrosine Hydroxylase (TH) within substantia nigra pars compacta (SNc), ventral tegmental area (VTA) and the striatal outputs together with loss expression of GFAP in these structures. This was linked with an evident decrease in locomotor performance. Co-treatment with curcumin-I inverted these damages and exhibited a significant neuroprotective potential, thus, both TH expression and locomotor performance was reinstated in intoxicated rats. These results prove a profound dopaminergic and astroglial damages following subchronic Cu exposition and new beneficial curative potential of curcumin against subchronic Cu-induced astroglial and dopaminergic neurotoxicity. Consequently, we suggest that Cu neurotoxicity may be strengthened in vivo firstly by attacking and weaking the astroglial system, and curcumin could be prized as a powerful and preventive target for the neurodegenerative diseases related metal element, especially Parkinson's disease.
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25
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Watts ME, Pocock R, Claudianos C. Brain Energy and Oxygen Metabolism: Emerging Role in Normal Function and Disease. Front Mol Neurosci 2018; 11:216. [PMID: 29988368 PMCID: PMC6023993 DOI: 10.3389/fnmol.2018.00216] [Citation(s) in RCA: 195] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 06/01/2018] [Indexed: 01/09/2023] Open
Abstract
Dynamic metabolic changes occurring in neurons are critically important in directing brain plasticity and cognitive function. In other tissue types, disruptions to metabolism and the resultant changes in cellular oxidative state, such as increased reactive oxygen species (ROS) or induction of hypoxia, are associated with cellular stress. In the brain however, where drastic metabolic shifts occur to support physiological processes, subsequent changes to cellular oxidative state and induction of transcriptional sensors of oxidative stress likely play a significant role in regulating physiological neuronal function. Understanding the role of metabolism and metabolically-regulated genes in neuronal function will be critical in elucidating how cognitive functions are disrupted in pathological conditions where neuronal metabolism is affected. Here, we discuss known mechanisms regulating neuronal metabolism as well as the role of hypoxia and oxidative stress during normal and disrupted neuronal function. We also summarize recent studies implicating a role for metabolism in regulating neuronal plasticity as an emerging neuroscience paradigm.
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Affiliation(s)
- Michelle E Watts
- Queensland Brain Institute, The University of Queensland, St. Lucia, QLD, Australia
| | - Roger Pocock
- Development and Stem Cells Program, Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Charles Claudianos
- Queensland Brain Institute, The University of Queensland, St. Lucia, QLD, Australia.,Centre for Mental Health Research, The Australian National University, Canberra, ACT, Australia
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26
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Giampietro R, Spinelli F, Contino M, Colabufo NA. The Pivotal Role of Copper in Neurodegeneration: A New Strategy for the Therapy of Neurodegenerative Disorders. Mol Pharm 2018; 15:808-820. [PMID: 29323501 DOI: 10.1021/acs.molpharmaceut.7b00841] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Copper is an essential trace element for the human body since it is a cofactor of several enzymes and proteins and plays a pivotal role in several biological functions (e.g., respiration, protection from oxidative damage, iron metabolism, etc.), also including the central nervous system development and functioning (e.g., synthesis of neurotransmitters, myelination, activation of neuropeptides, etc.). Therefore, copper dysmetabolism is associated with different toxic effects, mainly represented by oxidative stress, and it has been reported in many neurodegenerative disorders, such as Wilson's disease, Menkes disease, Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. This paper shows a detailed report of how copper is involved in the pathophysiology of these diseases. Moreover, a hint on novel therapeutic approaches based on restoring copper homeostasis through metal chelators will be pointed out.
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Affiliation(s)
- Roberta Giampietro
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari Aldo Moro , Via Orabona 4 , 70125 , Bari , Italy
| | - Francesco Spinelli
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari Aldo Moro , Via Orabona 4 , 70125 , Bari , Italy
| | - Marialessandra Contino
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari Aldo Moro , Via Orabona 4 , 70125 , Bari , Italy
| | - Nicola Antonio Colabufo
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari Aldo Moro , Via Orabona 4 , 70125 , Bari , Italy.,Biofordrug srl, Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari Aldo Moro , Via Orabona 4 , 70125 , Bari , Italy
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27
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Dancs Á, Selmeczi K, May NV, Gajda T. On the copper(ii) binding of asymmetrically functionalized tripodal peptides: solution equilibrium, structure, and enzyme mimicking. NEW J CHEM 2018. [DOI: 10.1039/c7nj04716a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The increasing histidyl functionalisation of tren results in the fundamental impact on the structure, stability and catecholase activity of its copper(ii) complexes.
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Affiliation(s)
- Ágnes Dancs
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
- Université de Lorraine – CNRS
| | - Katalin Selmeczi
- Université de Lorraine – CNRS
- UMR 7053 L2CM
- 54506 Vandœuvre-lès-Nancy
- France
| | - Nóra V. May
- Institute of Organic Chemistry
- Research Centre for Natural Sciences HAS
- H-1117 Budapest
- Hungary
| | - Tamás Gajda
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
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28
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Catechol Oxidase and SOD Mimicking by Copper(II) Complexes of Multihistidine Peptides. Int J Pept Res Ther 2017. [DOI: 10.1007/s10989-017-9645-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Abbaoui A, Chatoui H, El Hiba O, Gamrani H. Neuroprotective effect of curcumin-I in copper-induced dopaminergic neurotoxicity in rats: A possible link with Parkinson's disease. Neurosci Lett 2017; 660:103-108. [PMID: 28919537 DOI: 10.1016/j.neulet.2017.09.032] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 07/25/2017] [Accepted: 09/14/2017] [Indexed: 11/18/2022]
Abstract
Numerous findings indicate an involvement of heavy metals in the neuropathology of several neurodegenerative disorders, especially Parkinson's disease (PD). Previous studies have demonstrated that Copper (Cu) exhibits a potent neurotoxic effect on dopaminergic neurons and triggers profound neurobehavioral alterations. Curcumin is a major component of Curcuma longa rhizomes and a powerful medicinal plant that exerts many pharmacological effects. However, the neuroprotective action of curcumin on Cu-induced dopaminergic neurotoxicity is yet to be investigated. The aim of the present study was to evaluate the impact of acute Cu-intoxication (10mg/kg B.W. i.p) for 3days on the dopaminergic system and locomotor performance as well as the possible therapeutic efficacy of curcumin I (30mg/kg B.W.). Intoxicated rats showed a significant loss of Tyrosine Hydroxylase (TH) expression within substantia nigra pars compacta (SNc), ventral tegmental area (VTA) and the striatal outputs. This was correlated with a clear decrease in locomotor performance. Critically, curcumin-I co-treatment reversed these changes and showed a noticeable protective effect; both TH expression and locomotor performance was reinstated in intoxicated rats. These results demonstrate altered dopaminergic innervations following Cu intoxication and a new therapeutic potential of curcumin against Cu-induced dopaminergic neurotransmission failure. Curcumin may therefore prevent heavy metal related Parkinsonism.
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Affiliation(s)
- Abdellatif Abbaoui
- Cadi Ayyad University, faculty of sciences Semlalia, Neurosciences, Pharmacology and Environment Unit, Marrakesh, Morocco
| | - Hicham Chatoui
- Cadi Ayyad University, faculty of sciences Semlalia, Neurosciences, Pharmacology and Environment Unit, Marrakesh, Morocco
| | - Omar El Hiba
- Cadi Ayyad University, faculty of sciences Semlalia, Neurosciences, Pharmacology and Environment Unit, Marrakesh, Morocco; Chouaib Doukkali University, Faculty of Sciences, Department of Biology, Morocco
| | - Halima Gamrani
- Cadi Ayyad University, faculty of sciences Semlalia, Neurosciences, Pharmacology and Environment Unit, Marrakesh, Morocco.
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Dell'Acqua S, Bacchella C, Monzani E, Nicolis S, Di Natale G, Rizzarelli E, Casella L. Prion Peptides Are Extremely Sensitive to Copper Induced Oxidative Stress. Inorg Chem 2017; 56:11317-11325. [PMID: 28846410 DOI: 10.1021/acs.inorgchem.7b01757] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Copper(II) binding to prion peptides does not prevent Cu redox cycling and formation of reactive oxygen species (ROS) in the presence of reducing agents. The toxic effects of these species are exacerbated in the presence of catecholamines, indicating that dysfunction of catecholamine vesicular sequestration or recovery after synaptic release is a dangerous amplifier of Cu induced oxidative stress. Cu bound to prion peptides including the high affinity site involving histidines adjacent to the octarepeats exhibits marked catalytic activity toward dopamine and 4-methylcatechol. The resulting quinone oxidation products undergo parallel oligomerization and endogenous peptide modification yielding catechol adducts at the histidine binding ligands. These modifications add to the more common oxidation of Met and His residues produced by ROS. Derivatization of Cu-prion peptides is much faster than that undergone by Cu-β-amyloid and Cu-α-synuclein complexes in the same conditions.
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Affiliation(s)
- Simone Dell'Acqua
- Dipartimento di Chimica, Università di Pavia , Via Taramelli 12, 27100 Pavia, Italy
| | - Chiara Bacchella
- 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
| | - Stefania Nicolis
- Dipartimento di Chimica, Università di Pavia , Via Taramelli 12, 27100 Pavia, Italy
| | - Giuseppe Di Natale
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale delle Ricerche , Via P. Gaifami 18, Catania, Italy
| | - Enrico Rizzarelli
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale delle Ricerche , Via P. Gaifami 18, Catania, Italy
| | - Luigi Casella
- Dipartimento di Chimica, Università di Pavia , Via Taramelli 12, 27100 Pavia, Italy
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31
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Toni M, Massimino ML, De Mario A, Angiulli E, Spisni E. Metal Dyshomeostasis and Their Pathological Role in Prion and Prion-Like Diseases: The Basis for a Nutritional Approach. Front Neurosci 2017; 11:3. [PMID: 28154522 PMCID: PMC5243831 DOI: 10.3389/fnins.2017.00003] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 01/03/2017] [Indexed: 12/11/2022] Open
Abstract
Metal ions are key elements in organisms' life acting like cofactors of many enzymes but they can also be potentially dangerous for the cell participating in redox reactions that lead to the formation of reactive oxygen species (ROS). Any factor inducing or limiting a metal dyshomeostasis, ROS production and cell injury may contribute to the onset of neurodegenerative diseases or play a neuroprotective action. Transmissible spongiform encephalopathies (TSEs), also known as prion diseases, are a group of fatal neurodegenerative disorders affecting the central nervous system (CNS) of human and other mammalian species. The causative agent of TSEs is believed to be the scrapie prion protein PrPSc, the β sheet-rich pathogenic isoform produced by the conformational conversion of the α-helix-rich physiological isoform PrPC. The peculiarity of PrPSc is its ability to self-propagate in exponential fashion in cells and its tendency to precipitate in insoluble and protease-resistance amyloid aggregates leading to neuronal cell death. The expression “prion-like diseases” refers to a group of neurodegenerative diseases that share some neuropathological features with prion diseases such as the involvement of proteins (α-synuclein, amyloid β, and tau) able to precipitate producing amyloid deposits following conformational change. High social impact diseases such as Alzheimer's and Parkinson's belong to prion-like diseases. Accumulating evidence suggests that the exposure to environmental metals is a risk factor for the development of prion and prion-like diseases and that metal ions can directly bind to prion and prion-like proteins affecting the amount of amyloid aggregates. The diet, source of metal ions but also of natural antioxidant and chelating agents such as polyphenols, is an aspect to take into account in addressing the issue of neurodegeneration. Epidemiological data suggest that the Mediterranean diet, based on the abundant consumption of fresh vegetables and on low intake of meat, could play a preventive or delaying role in prion and prion-like neurodegenerative diseases. In this review, metal role in the onset of prion and prion-like diseases is dealt with from a nutritional, cellular, and molecular point of view.
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Affiliation(s)
- Mattia Toni
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University Rome, Italy
| | - Maria L Massimino
- National Research Council (CNR), Neuroscience Institute c/o Department of Biomedical Sciences, University of Padova Padova, Italy
| | - Agnese De Mario
- Department of Biomedical Sciences, University of Padova Padova, Italy
| | - Elisa Angiulli
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University Rome, Italy
| | - Enzo Spisni
- Department of Biological, Geological and Environmental Sciences, University of Bologna Bologna, Italy
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32
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Dancs Á, May NV, Selmeczi K, Darula Z, Szorcsik A, Matyuska F, Páli T, Gajda T. Tuning the coordination properties of multi-histidine peptides by using a tripodal scaffold: solution chemical study and catechol oxidase mimicking. NEW J CHEM 2017. [DOI: 10.1039/c6nj03126a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Histidine-rich tripodal peptides form unique oligonuclear complexes with copper(ii), which exhibit efficient catecholase-like activity.
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Affiliation(s)
- Ágnes Dancs
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
- Université de Lorraine – CNRS
| | - Nóra V. May
- Research Centre for Natural Sciences HAS
- H-1117 Budapest
- Hungary
| | - Katalin Selmeczi
- Université de Lorraine – CNRS
- UMR 7565 SRSMC
- 54506 Vandœuvre-lès-Nancy
- France
| | - Zsuzsanna Darula
- Institute of Biochemistry
- Biological Research Centre
- Hungarian Academy of Sciences
- H-6724 Szeged
- Hungary
| | - Attila Szorcsik
- MTA-SZTE Bioinorganic Chemistry Research Group
- H-6720 Szeged
- Hungary
| | - Ferenc Matyuska
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
| | - Tibor Páli
- Institute of Biophysics
- Biological Research Centre
- Hungarian Academy of Sciences
- H-6724 Szeged
- Hungary
| | - Tamás Gajda
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
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33
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Pirota V, Dell'Acqua S, Monzani E, Nicolis S, Casella L. Copper-Aβ Peptides and Oxidation of Catecholic Substrates: Reactivity and Endogenous Peptide Damage. Chemistry 2016; 22:16964-16973. [PMID: 27735097 DOI: 10.1002/chem.201603824] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Indexed: 11/08/2022]
Abstract
The oxidative reactivity of copper complexes with Aβ peptides 1-16 and 1-28 (Aβ16 and Aβ28) against dopamine and related catechols under physiological conditions has been investigated in parallel with the competitive oxidative modification undergone by the peptides. It was found that both Aβ16 and Aβ28 markedly increase the oxidative reactivity of copper(II) towards the catechol compounds, up to a molar ratio of about 4:1 of peptide/copper(II). Copper redox cycling during the catalytic activity induces the competitive modification of the peptide at selected amino acid residues. The main modifications consist of oxidation of His13/14 to 2-oxohistidine and Phe19/20 to ortho-tyrosine, and the formation of a covalent His6-catechol adduct. Competition by the endogenous peptide is rather efficient, as approximately one peptide molecule is oxidized every 10 molecules of 4-methylcatechol.
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Affiliation(s)
- Valentina Pirota
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Simone Dell'Acqua
- 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
| | - Stefania Nicolis
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Luigi Casella
- Dipartimento di Chimica, Università di Pavia, Via Taramelli 12, 27100, Pavia, Italy
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34
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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]
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35
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Coherent and Contradictory Facts, Feats and Fictions Associated with Metal Accumulation in Parkinson's Disease: Epicenter or Outcome, Yet a Demigod Question. Mol Neurobiol 2016; 54:4738-4755. [PMID: 27480264 DOI: 10.1007/s12035-016-0016-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 07/12/2016] [Indexed: 01/30/2023]
Abstract
Unwarranted exposure due to liberal use of metals for maintaining the lavish life and to achieve the food demand for escalating population along with an incredible boost in the average human life span owing to orchestrated progress in rejuvenation therapy have gradually increased the occurrence of Parkinson's disease (PD). Etiology is albeit elusive; association of PD with metal accumulation has never been overlooked due to noteworthy similitude between metal-exposure symptoms and a few cardinal features of disease. Even though metals are entailed in the vital functions, a hysterical shift, primarily augmentation, escorts the stern nigrostriatal dopaminergic neurodegeneration. An increase in the passage of metals through the blood brain barrier and impaired metabolic activity and elimination system could lead to metal accumulation in the brain, which eventually makes dopaminergic neurons quite susceptible. In the present article, an update on implication of metal accumulation in PD/Parkinsonism has been provided. Moreover, encouraging and paradoxical facts and fictions associated with metal accumulation in PD/Parkinsonism have also been compiled. Systematic literature survey of PD is performed to describe updated information if metal accumulation is an epicenter or merely an outcome. Finally, a perspective on the association of metal accumulation with pesticide-induced Parkinsonism has been explained to unveil the likely impact of the former in the latter.
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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
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Bhardwaj S, Maurya N, Singh AK, Varshney R, Roy P. Promising ESIPT-based fluorescence sensor for Cu2+ and CN− ions: investigation towards logic gate behaviour, anticancer activities and bioimaging application. RSC Adv 2016. [DOI: 10.1039/c6ra22352d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
An excited state intramolecular proton transfer (ESIPT) process-based novel chromogenic and fluorogenic probe (2) was synthesized with the aim of sequential in situ detection of Cu2+ and CN− ions under aqueous and biological conditions.
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Affiliation(s)
| | - Nirma Maurya
- Department of Chemistry
- Indian Institute of Technology – Roorkee
- Roorkee 247667
- India
| | - Ashok Kumar Singh
- Department of Chemistry
- Indian Institute of Technology – Roorkee
- Roorkee 247667
- India
| | - Ritu Varshney
- Department of Biotechnology
- Indian Institute of Technology – Roorkee
- Roorkee 247667
- India
| | - Partha Roy
- Department of Biotechnology
- Indian Institute of Technology – Roorkee
- Roorkee 247667
- India
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38
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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.
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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.
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