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Lu Y, Salsbury F, Derreumaux P. Impact of A2T and D23N mutations on C99 homodimer conformations. J Chem Phys 2022; 157:085102. [DOI: 10.1063/5.0101622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The proteolytic cleavage of C99 by γ-secretase is the last step in the production of amyloid-β (Aβ) peptides. Previous studies have shown that membrane lipid composition, cholesterol concentration, and mutation in the transmembrane helix modified the structures and fluctuations of C99. In this study, we performed atomistic molecular dynamics simulations of the homodimer of the 55-residue congener of the C-terminal domain of the amyloid protein precursor, C99(1-55), in a POPC-cholesterol lipid bilayer, and we compared the conformational ensemble of WT sequence to those of the A2T and D23N variants. These mutations are particularly interesting as the protective Alzheimer's disease (AD) A2T mutation is known to decrease Aβ production, whereas the early onset AD D23N mutation does not affect Aβ production. We found noticeable differences in the structural ensembles of the three sequences. In particular, A2T varies from both WT and D23N by having long-range effects on the population of the extracellular justamembrane helix, the interface between the G29xxx-G33xxx-G37 motifs and the fluctuations of the transmembrane helical topologies.
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Affiliation(s)
- Yan Lu
- School of Physics, Xidian University, China
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2
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Limegrover CS, LeVine H, Izzo NJ, Yurko R, Mozzoni K, Rehak C, Sadlek K, Safferstein H, Catalano SM. Alzheimer's protection effect of A673T mutation may be driven by lower Aβ oligomer binding affinity. J Neurochem 2021; 157:1316-1330. [PMID: 33025581 PMCID: PMC8246829 DOI: 10.1111/jnc.15212] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/30/2020] [Accepted: 10/01/2020] [Indexed: 12/16/2022]
Abstract
Several mutations conferring protection against Alzheimer's disease (AD) have been described, none as profound as the A673T mutation, where carriers are four times less likely to get AD compared to noncarriers. This mutation results in reduced amyloid beta (Aβ) protein production in vitro and lower lifetime Aβ concentration in carriers. Better understanding of the protective mechanisms of the mutation may provide important insights into AD pathophysiology and identify productive therapeutic intervention strategies for disease modification. Aβ(1-42) protein forms oligomers that bind saturably to a single receptor site on neuronal synapses, initiating the downstream toxicities observed in AD. Decreased formation, toxicity, or stability of soluble Aβ oligomers, or reduction of synaptic binding of these oligomers, may combine with overall lower Aβ concentration to underlie A673T's disease protecting mechanism. To investigate these possibilities, we compared the formation rate of soluble oligomers made from Icelandic A673T mutant and wild type (wt) Aβ(1-42) synthetic protein, the amount and intensity of oligomer bound to mature primary rat hippocampal/cortical neuronal synapses, and the potency of bound oligomers to impact trafficking rate in neurons in vitro using a physiologically relevant oligomer preparation method. At equal protein concentrations, mutant protein forms approximately 50% or fewer oligomers of high molecular weight (>50 kDa) compared to wt protein. Mutant oligomers are twice as potent at altering the cellular vesicle trafficking rate as wt at equivalent concentrations, however, mutant oligomers have a >4-fold lower binding affinity to synaptic receptors (Kd = 1,950 vs. 442 nM). The net effect of these differences is a lower overall toxicity at a given concentration. This study demonstrates for the first time that mutant A673T Aβ oligomers prepared with this method have fundamentally different assembly characteristics and biological impact from wt protein and indicates that its disease protecting mechanism may result primarily from the mutant protein's much lower binding affinity to synaptic receptors. This suggests that therapeutics that effectively reduce oligomer binding to synapses in the brain may be beneficial in AD.
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Affiliation(s)
| | - Harry LeVine
- Sanders‐Brown Center on AgingUniversity of KentuckyLexingtonKYUSA
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3
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Perissinotto F, Rondelli V, Senigagliesi B, Brocca P, Almásy L, Bottyán L, Merkel DG, Amenitsch H, Sartori B, Pachler K, Mayr M, Gimona M, Rohde E, Casalis L, Parisse P. Structural insights into fusion mechanisms of small extracellular vesicles with model plasma membranes. NANOSCALE 2021; 13:5224-5233. [PMID: 33687046 DOI: 10.1039/d0nr09075a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Extracellular vesicles (EVs) are a potent intercellular communication system. Such small vesicles transport biomolecules between cells and throughout the body, strongly influencing the fate of recipient cells. Due to their specific biological functions they have been proposed as biomarkers for various diseases and as optimal candidates for therapeutic applications. Despite their extreme biological relevance, their mechanisms of interaction with the membranes of recipient cells are still hotly debated. Here, we propose a multiscale investigation based on atomic force microscopy, small angle X-ray scattering, small angle neutron scattering and neutron reflectometry to reveal structure-function correlations of purified EVs in interaction with model membrane systems of variable complex compositions and to spot the role of different membrane phases on the vesicle internalization routes. Our analysis reveals strong interactions of EVs with the model membranes and preferentially with the borders of protruding phase domains. Moreover, we found that upon vesicle breaking on the model membrane surface, the biomolecules carried by/on EVs diffuse with different kinetics rates, in a process distinct from simple fusion. The biophysical platform proposed here has clear implications on the modulation of EV internalization routes by targeting specific domains at the plasma cell membrane and, as a consequence, on EV-based therapies.
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Affiliation(s)
- Fabio Perissinotto
- Elettra Sincrotrone Trieste, Trieste, Italy. and Center for Infection and Immunity of Lille, INSERM U1019, Institut Pasteur de Lille, Lille, France
| | - Valeria Rondelli
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Italy
| | | | - Paola Brocca
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Italy
| | | | - László Bottyán
- Centre for Energy Research, Budapest, Hungary and Wigner Research Centre for Physics, Budapest, Hungary
| | - Dániel Géza Merkel
- Centre for Energy Research, Budapest, Hungary and Wigner Research Centre for Physics, Budapest, Hungary
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, Graz University of Technology, Graz, Austria
| | - Barbara Sartori
- Institute of Inorganic Chemistry, Graz University of Technology, Graz, Austria
| | - Karin Pachler
- GMP Unit, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University (PMU), Salzburg, Austria and Research Program "Nanovesicular Therapies", Paracelsus Medical University, Salzburg, Austria
| | - Magdalena Mayr
- GMP Unit, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University (PMU), Salzburg, Austria
| | - Mario Gimona
- GMP Unit, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University (PMU), Salzburg, Austria and Research Program "Nanovesicular Therapies", Paracelsus Medical University, Salzburg, Austria
| | - Eva Rohde
- Research Program "Nanovesicular Therapies", Paracelsus Medical University, Salzburg, Austria and Department of Transfusion Medicine, University Hospital, Salzburger Landeskliniken, Austria
| | | | - Pietro Parisse
- Elettra Sincrotrone Trieste, Trieste, Italy. and CNR-IOM, Trieste, Italy
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4
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García-Viñuales S, Sciacca MFM, Lanza V, Santoro AM, Grasso G, Tundo GR, Sbardella D, Coletta M, Grasso G, La Rosa C, Milardi D. The interplay between lipid and Aβ amyloid homeostasis in Alzheimer's Disease: risk factors and therapeutic opportunities. Chem Phys Lipids 2021; 236:105072. [PMID: 33675779 DOI: 10.1016/j.chemphyslip.2021.105072] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/15/2021] [Accepted: 03/01/2021] [Indexed: 12/19/2022]
Abstract
Alzheimer's Diseases (AD) is characterized by the accumulation of amyloid deposits of Aβ peptide in the brain. Besides genetic background, the presence of other diseases and an unhealthy lifestyle are known risk factors for AD development. Albeit accumulating clinical evidence suggests that an impaired lipid metabolism is related to Aβ deposition, mechanistic insights on the link between amyloid fibril formation/clearance and aberrant lipid interactions are still unavailable. Recently, many studies have described the key role played by membrane bound Aβ assemblies in neurotoxicity. Moreover, it has been suggested that a derangement of the ubiquitin proteasome pathway and autophagy is significantly correlated with toxic Aβ aggregation and dysregulation of lipid levels. Thus, studies focusing on the role played by lipids in Aβ aggregation and proteostasis could represent a promising area of investigation for the design of valuable treatments. In this review we examine current knowledge concerning the effects of lipids in Aβ aggregation and degradation processes, focusing on the therapeutic opportunities that a comprehensive understanding of all biophysical, biochemical, and biological processes involved may disclose.
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Affiliation(s)
| | - Michele F M Sciacca
- Consiglio Nazionale delle Ricerche, Istituto di Cristallografia, Catania, Italy
| | - Valeria Lanza
- Consiglio Nazionale delle Ricerche, Istituto di Cristallografia, Catania, Italy
| | - Anna Maria Santoro
- Consiglio Nazionale delle Ricerche, Istituto di Cristallografia, Catania, Italy
| | - Giulia Grasso
- Consiglio Nazionale delle Ricerche, Istituto di Cristallografia, Catania, Italy
| | - Grazia R Tundo
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | - Massimiliano Coletta
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Giuseppe Grasso
- Department of Chemistry, University of Catania, Catania, Italy
| | - Carmelo La Rosa
- Department of Chemistry, University of Catania, Catania, Italy
| | - Danilo Milardi
- Consiglio Nazionale delle Ricerche, Istituto di Cristallografia, Catania, Italy.
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5
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Effect of packing density of lipid vesicles on the Aβ42 fibril polymorphism. Chem Phys Lipids 2021; 236:105073. [PMID: 33675780 DOI: 10.1016/j.chemphyslip.2021.105073] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 02/23/2021] [Accepted: 03/01/2021] [Indexed: 11/22/2022]
Abstract
The aggregation of amyloid-β 1-42 (Aβ42) on lipid membranes is closely related to the pathology of Alzheimer's disease (AD). Herein, we demonstrated the effect of the packing density of lipid vesicles on the Aβ42 fibrillation kinetics and fibril morphology. We used three distinct phosphatidylcholine (PC) lipids, containing different numbers of cis-double bonds in acyl chains, and therefore, a different packing density in the lipid vesicles. Our results showed that the fibrillation of Aβ42 was greatly enhanced and the formed fibrils became shorter as the number of double bonds in lipids increased. Due to the low-density characteristics of dioleoyl phosphatidylcholine (DOPC), Aβ42 monomers were able to interact with the hydrophobic acyl chain of lipids exposed to the aqueous phase, thereby inducing rapid fibrillation and short fibril morphologies. Furthermore, the effects of the anionic lipids dioleoyl phosphatidylserine (DOPS) and dioleoyl phosphatidylglycerol (DOPG), and mixed vesicles of DOPC/DOPS and DOPC/DOPG on Aβ42 fibrillations were investigated. The tight binding of Aβ42 to the lipid head groups via electrostatic interactions was able to suppress the modulation of Aβ42 fibrillations compared to accelerated fibrillations on loosely packed membranes. Our proposed mechanism regarding the influence of lipid packing density on Aβ42 fibrillations provides an advanced understanding of lipid-associated amyloid fibrillations.
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6
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Ugbaja SC, Sanusi ZK, Appiah-Kubi P, Lawal MM, Kumalo HM. Computational modelling of potent β-secretase (BACE1) inhibitors towards Alzheimer's disease treatment. Biophys Chem 2020; 270:106536. [PMID: 33387910 DOI: 10.1016/j.bpc.2020.106536] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 12/28/2022]
Abstract
Researchers have identified the β-amyloid precursor protein cleaving enzyme 1 (BACE1) in the multifactorial pathway of Alzheimer's disease (AD) as a drug target. The design and development of molecules to inhibit BACE1 as a potential cure for AD thus remained significant. Herein, we simulated two potent BACE1 inhibitors (AM-6494 and CNP-520) to understand their binding affinity at the atomistic level. AM-6494 is a newly reported potent BACE1 inhibitor with an IC50 value of 0.4 nM in vivo and now picked for preclinical considerations. Umibecestat (CNP-520), which was discontinued at human trials lately, was considered to enable a reasonable evaluation of our results. Using density functional theory (DFT) and Our Own N-layered Integrated molecular Orbital and Molecular Mechanics (ONIOM), we achieved the aim of this investigation. These computational approaches enabled the prediction of the electronic properties of AM-6494 and CNP-520 plus their binding energies when complexed with BACE1. For AM-6494 and CNP-520 interaction with protonated BACE1, the ONIOM calculation gave binding free energy of -62.849 and -33.463 kcal/mol, respectively. In the unprotonated model, we observed binding free energy of -59.758 kcal/mol in AM-6494. Taken together thermochemistry of the process and molecular interaction plot, AM-6494 is more favourable than CNP-520 towards the inhibition of BACE1. The protonated model gave slightly better binding energy than the unprotonated form. However, both models could sufficiently describe ligand binding to BACE1 at the atomistic level. Understanding the detailed molecular interaction of these inhibitors could serve as a basis for pharmacophore exploration towards improved inhibitor design.
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Affiliation(s)
- Samuel C Ugbaja
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Zainab K Sanusi
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Patrick Appiah-Kubi
- Molecular Bio-computational and Drug Design Research Group, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
| | - Monsurat M Lawal
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4001, South Africa.
| | - Hezekiel M Kumalo
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4001, South Africa.
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7
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Collin F, Cerlati O, Couderc F, Lonetti B, Marty JD, Mingotaud AF. Multidisciplinary analysis of protein-lipid interactions and implications in neurodegenerative disorders. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Membrane stiffness and myelin basic protein binding strength as molecular origin of multiple sclerosis. Sci Rep 2020; 10:16691. [PMID: 33028889 PMCID: PMC7542173 DOI: 10.1038/s41598-020-73671-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/21/2020] [Indexed: 01/08/2023] Open
Abstract
Myelin basic protein (MBP) and its interaction with lipids of the myelin sheath plays an important part in the pathology of multiple sclerosis (MS). Previous studies observed that changes in the myelin lipid composition lead to instabilities and enhanced local curvature of MBP-lipid multilayer structures. We investigated the molecular origin of the instability and found that the diseased lipid membrane has a 25% lower bending rigidity, thus destabilizing smooth \documentclass[12pt]{minimal}
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\begin{document}$$>1\,$$\end{document}>1µm curvature radius structures such as in giant unilamellar vesicles. MBP-mediated assembling of lipid bilayers proceeds in two steps, with a slow second step occurring over many days where native lipid membranes assemble into well-defined multilayer structures, whereas diseased lipid membranes form folded assemblies with high local curvature. For both native and diseased lipid mixtures we find that MBP forms dense liquid phases on top of the lipid membranes mediating attractive membrane interactions. Furthermore, we observe MBP to insert into its bilayer leaflet side in case of the diseased lipid mixture, whereas there is no insertion for the native mixture. Insertion increases the local membrane curvature, and could be caused by a decrease of the sphingomyelin content of the diseased lipid mixture. These findings can help to open a pathway to remyelination strategies.
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Maiolo D, Pizzi A, Gori A, Bergamaschi G, Pigliacelli C, Gazzera L, Consonni A, Baggi F, Moda F, Baldelli Bombelli F, Metrangolo P, Resnati G. Enhanced self-assembly of the 7–12 sequence of amyloid-β peptide by tyrosine bromination. Supramol Chem 2020. [DOI: 10.1080/10610278.2020.1734203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Daniele Maiolo
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
| | - Andrea Pizzi
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
| | - Alessandro Gori
- Istituto Di Scienze E Tecnologie Chimiche, National Research Council of Italy, Milano, Italy
| | - Greta Bergamaschi
- Istituto Di Scienze E Tecnologie Chimiche, National Research Council of Italy, Milano, Italy
| | - Claudia Pigliacelli
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
- Hyber Center of Excellence, Department of Applied Physics, Aalto University, Espoo, Finland
| | - Lara Gazzera
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
| | | | - Fulvio Baggi
- Fondazione IRCCS Istituto Neurologico “Carlo Besta”, 20133 Milano, Italy
| | - Fabio Moda
- Fondazione IRCCS Istituto Neurologico “Carlo Besta”, 20133 Milano, Italy
| | - Francesca Baldelli Bombelli
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
| | - Pierangelo Metrangolo
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
- Hyber Center of Excellence, Department of Applied Physics, Aalto University, Espoo, Finland
| | - Giuseppe Resnati
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
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10
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Maiolo D, Pizzi A, Gori A, Gazzera L, Demitri N, Genoni A, Baggi F, Moda F, Terraneo G, Baldelli Bombelli F, Metrangolo P, Resnati G. Halogenation of the N-Terminus Tyrosine 10 Promotes Supramolecular Stabilization of the Amyloid-β Sequence 7-12. ChemistryOpen 2020; 9:253-260. [PMID: 32110506 PMCID: PMC7041548 DOI: 10.1002/open.201900350] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/07/2020] [Indexed: 12/16/2022] Open
Abstract
Here, we demonstrate that introduction of halogen atoms at the tyrosine 10 phenol ring of the DSGYEV sequence derived from the flexible amyloid‐β N‐terminus, promotes its self‐assembly in the solid state. In particular, we report the crystal structures of two halogen‐modified sequences, which we found to be stabilized in the solid state by halogen‐mediated interactions. The structural study is corroborated by Non‐Covalent Interaction (NCI) analysis. Our results prove that selective halogenation of an amino acid enhances the supramolecular organization of otherwise unstructured biologically‐relevant sequences. This method may develop as a general strategy for stabilizing highly polymorphic peptide regions.
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Affiliation(s)
- Daniele Maiolo
- Dept. Chem., Mater., and Chem. Eng. "Giulio Natta" Politecnico di Milano Via L. Mancinelli 7 20131 Milano Italy
| | - Andrea Pizzi
- Dept. Chem., Mater., and Chem. Eng. "Giulio Natta" Politecnico di Milano Via L. Mancinelli 7 20131 Milano Italy
| | - Alessandro Gori
- Istituto di Scienze e Tecnologie Chimiche National Research Council of Italy Via M. Bianco 9 20131 Milano Italy
| | - Lara Gazzera
- Dept. Chem., Mater., and Chem. Eng. "Giulio Natta" Politecnico di Milano Via L. Mancinelli 7 20131 Milano Italy
| | - Nicola Demitri
- Elettra - Sincrotrone Trieste S.S. 14 Km 163.5 in Area Science Park 34149 Basovizza - Trieste Italy
| | - Alessandro Genoni
- Laboratoire de Physique et Chimie Théoriques Université de Lorraine and CNRS UMR CNRS 7019 1 Boulevard Arago 57078 Metz France
| | - Fulvio Baggi
- Fondazione IRCCS Istituto Neurologico "Carlo Besta" Via G. Celoria 11 20133 Milan Italy
| | - Fabio Moda
- Fondazione IRCCS Istituto Neurologico "Carlo Besta" Via G. Celoria 11 20133 Milan Italy
| | - Giancarlo Terraneo
- Dept. Chem., Mater., and Chem. Eng. "Giulio Natta" Politecnico di Milano Via L. Mancinelli 7 20131 Milano Italy.,Istituto di Scienze e Tecnologie Chimiche National Research Council of Italy Via M. Bianco 9 20131 Milano Italy
| | - Francesca Baldelli Bombelli
- Dept. Chem., Mater., and Chem. Eng. "Giulio Natta" Politecnico di Milano Via L. Mancinelli 7 20131 Milano Italy
| | - Pierangelo Metrangolo
- Dept. Chem., Mater., and Chem. Eng. "Giulio Natta" Politecnico di Milano Via L. Mancinelli 7 20131 Milano Italy
| | - Giuseppe Resnati
- Dept. Chem., Mater., and Chem. Eng. "Giulio Natta" Politecnico di Milano Via L. Mancinelli 7 20131 Milano Italy
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Ngo ST, Nguyen PH, Derreumaux P. Impact of A2T and D23N Mutations on Tetrameric Aβ42 Barrel within a Dipalmitoylphosphatidylcholine Lipid Bilayer Membrane by Replica Exchange Molecular Dynamics. J Phys Chem B 2020; 124:1175-1182. [DOI: 10.1021/acs.jpcb.9b11881] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Son Tung Ngo
- Laboratory of Theoretical and Computational Biophysics, Ton Duc Thang University, Ho Chi Minh City 33000, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 33000, Vietnam
| | - Phuong H. Nguyen
- CNRS, Université de Paris, UPR 9080, Laboratoire de Biochimie Théorique, 13 rue Pierre et Marie Curie, F-75005 Paris, France
- Institut de Biologie Physico-Chimique, Fondation Edmond de Rothschild, PSL Research University, Paris 75005, France
| | - Philippe Derreumaux
- Laboratory of Theoretical Chemistry, Ton Duc Thang University, Ho Chi Minh City 33000, Vietnam
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 33000, Vietnam
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12
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Di Fede G, Giaccone G, Salmona M, Tagliavini F. Translational Research in Alzheimer's and Prion Diseases. J Alzheimers Dis 2019; 62:1247-1259. [PMID: 29172000 PMCID: PMC5869996 DOI: 10.3233/jad-170770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Translational neuroscience integrates the knowledge derived by basic neuroscience with the development of new diagnostic and therapeutic tools that may be applied to clinical practice in neurological diseases. This information can be used to improve clinical trial designs and outcomes that will accelerate drug development, and to discover novel biomarkers which can be efficiently employed to early recognize neurological disorders and provide information regarding the effects of drugs on the underlying disease biology. Alzheimer’s disease (AD) and prion disease are two classes of neurodegenerative disorders characterized by incomplete knowledge of the molecular mechanisms underlying their occurrence and the lack of valid biomarkers and effective treatments. For these reasons, the design of therapies that prevent or delay the onset, slow the progression, or improve the symptoms associated to these disorders is urgently needed. During the last few decades, translational research provided a framework for advancing development of new diagnostic devices and promising disease-modifying therapies for patients with prion encephalopathies and AD. In this review, we provide present evidence of how supportive can be the translational approach to the study of dementias and show some results of our preclinical studies which have been translated to the clinical application following the ‘bed-to-bench-and-back’ research model.
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Affiliation(s)
- Giuseppe Di Fede
- IRCCS Foundation "Carlo Besta" Neurological Institute, Milan, Italy
| | - Giorgio Giaccone
- IRCCS Foundation "Carlo Besta" Neurological Institute, Milan, Italy
| | - Mario Salmona
- IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy
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13
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Atrián-Blasco E, Gonzalez P, Santoro A, Alies B, Faller P, Hureau C. Cu and Zn coordination to amyloid peptides: From fascinating chemistry to debated pathological relevance. Coord Chem Rev 2018; 375:38-55. [PMID: 30262932 DOI: 10.1016/j.ccr.2018.04.007] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Several diseases share misfolding of different peptides and proteins as a key feature for their development. This is the case of important neurodegenerative diseases such as Alzheimer's and Parkinson's diseases and type II diabetes mellitus. Even more, metal ions such as copper and zinc might play an important role upon interaction with amyloidogenic peptides and proteins, which could impact their aggregation and toxicity abilities. In this review, the different coordination modes proposed for copper and zinc with amyloid-β, α-synuclein and IAPP will be reviewed as well as their impact on the aggregation, and ROS production in the case of copper. In addition, a special focus will be given to the mutations that affect metal binding and lead to familial cases of the diseases. Different modifications of the peptides that have been observed in vivo and could be relevant for the coordination of metal ions are also described.
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Affiliation(s)
- Elena Atrián-Blasco
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4, France
- University of Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
| | - Paulina Gonzalez
- Biometals and Biology Chemistry, Institut de Chimie (CNRS UMR7177), Université de Strasbourg, 4 rue B. Pascal, 67081 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Alice Santoro
- Biometals and Biology Chemistry, Institut de Chimie (CNRS UMR7177), Université de Strasbourg, 4 rue B. Pascal, 67081 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Bruno Alies
- Université de Bordeaux, ChemBioPharm INSERM U1212 CNRS UMR 5320, Bordeaux, France
| | - Peter Faller
- Biometals and Biology Chemistry, Institut de Chimie (CNRS UMR7177), Université de Strasbourg, 4 rue B. Pascal, 67081 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Christelle Hureau
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4, France
- University of Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
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Giacomazza D, Viappiani C, Cera ED, Musio C. SIBPA under the Tuscan sun: Introduction to the SIBPA XXIII Special Issue. Biophys Chem 2017; 229:1-4. [PMID: 28941613 DOI: 10.1016/j.bpc.2017.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 08/30/2017] [Accepted: 08/30/2017] [Indexed: 01/03/2023]
Abstract
The Italian Society for Pure and Applied Biophysics (SIBPA) held its XXIII National Congress in the gorgeous Tuscan town of Cortona, Italy, on September 18-21, 2016. This special issue features a selection of contributions from the Congress in the areas of molecular, applied, cellular and computational biophysics. Cutting-edge developments in nanoscale biophysics were introduced for the first time in the program. SIBPA continues its successful promotion of biophysical disciplines at the national and international levels, with added strength from its partnership with Biophysical Chemistry and Elsevier.
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Affiliation(s)
- Daniela Giacomazza
- CNR Institute of Biophysics, Unit at Palermo, Via U. La Malfa 153, Palermo, I
| | - Cristiano Viappiani
- Department of Mathematical, Physical and Computer Sciences, Parco Area delle Scienze 7A, 43124 Parma, I
| | - Enrico Di Cera
- Edward A. Doisy Dept. of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St. Louis, MO 63104, USA
| | - Carlo Musio
- CNR Institute of Biophysics, Unit at Trento, Via alla Cascata 56/C, 38123 Trento, I
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