1
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Zhao Y, Zheng Q, Hong Y, Gao Y, Hu J, Lang M, Zhang H, Zhou Y, Luo H, Zhang X, Sun H, Yan XX, Huang TY, Wang YJ, Xu H, Liu C, Wang X. β 2-Microglobulin coaggregates with Aβ and contributes to amyloid pathology and cognitive deficits in Alzheimer's disease model mice. Nat Neurosci 2023:10.1038/s41593-023-01352-1. [PMID: 37264159 DOI: 10.1038/s41593-023-01352-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 05/03/2023] [Indexed: 06/03/2023]
Abstract
Extensive studies indicate that β-amyloid (Aβ) aggregation is pivotal for Alzheimer's disease (AD) progression; however, cumulative evidence suggests that Aβ itself is not sufficient to trigger AD-associated degeneration, and whether other additional pathological factors drive AD pathogenesis remains unclear. Here, we characterize pathogenic aggregates composed of β2-microglobulin (β2M) and Aβ that trigger neurodegeneration in AD. β2M, a component of major histocompatibility complex class I (MHC class I), is upregulated in the brains of individuals with AD and constitutes the amyloid plaque core. Elevation of β2M aggravates amyloid pathology independent of MHC class I, and coaggregation with β2M is essential for Aβ neurotoxicity. B2m genetic ablation abrogates amyloid spreading and cognitive deficits in AD mice. Antisense oligonucleotide- or monoclonal antibody-mediated β2M depletion mitigates AD-associated neuropathology, and inhibition of β2M-Aβ coaggregation with a β2M-based blocking peptide ameliorates amyloid pathology and cognitive deficits in AD mice. Our findings identify β2M as an essential factor for Aβ neurotoxicity and a potential target for treating AD.
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Affiliation(s)
- Yini Zhao
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China
- Shenzhen Research Institute of Xiamen University, Shenzhen, China
| | - Qiuyang Zheng
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China
- Shenzhen Research Institute of Xiamen University, Shenzhen, China
| | - Yujuan Hong
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China
| | - Yue Gao
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China
| | - Jiaojiao Hu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Maoju Lang
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China
| | - Hongfeng Zhang
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China
- Shenzhen Research Institute of Xiamen University, Shenzhen, China
| | - Ying Zhou
- National Institute for Data Science in Health and Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Hong Luo
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China
| | - Xian Zhang
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China
| | - Hao Sun
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China
| | - Xiao-Xin Yan
- Department of Anatomy and Neurobiology, Central South University Xiangya Medical School, Changsha, China
| | - Timothy Y Huang
- Degenerative Diseases Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Yan-Jiang Wang
- Department of Neurology and Centre for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Huaxi Xu
- Center for Brain Sciences, the First Affiliated Hospital of Xiamen University, Institute of Neuroscience, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Xiamen University, Xiamen, China
- Institute for Brain Science and Disease, Chongqing Medical University, Chongqing, China
| | - Cong Liu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Xin Wang
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, China.
- Shenzhen Research Institute of Xiamen University, Shenzhen, China.
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2
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Sgambati E, Tani A, Leri M, Delfino G, Zecchi-Orlandini S, Bucciantini M, Nosi D. Correlation between Sialylation Status and Cell Susceptibility to Amyloid Toxicity. Cells 2022; 11:cells11040601. [PMID: 35203252 PMCID: PMC8870280 DOI: 10.3390/cells11040601] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/31/2022] [Accepted: 02/03/2022] [Indexed: 02/04/2023] Open
Abstract
The interaction between the cell membrane and misfolded protein species plays a crucial role in the development of neurodegeneration. This study was designed to clarify the relationship between plasma membrane composition in terms of the differently linked sialic acid (Sia) content and cell susceptibility to toxic and misfolded Aβ-42 peptides. The sialylation status in different cell lines was investigated by lectin histochemistry and confocal immunofluorescence and then correlated with the different propensities to bind amyloid fibrils and with the relative cell susceptibility to amyloid damage. This study reveals that expressions of Sias α2,3 and α2,6 linked to galactose/N-acetyl-galactosamine, and PolySia are positively correlated with Aβ-42-induced cell toxicity. PolySia shows an early strong interaction with amyloid fibrils, favoring their binding to GM1 ganglioside containing α2,3 galactose-linked Sia and a loss of cell viability. Our findings demonstrate that cell lines with a prevailing plastic neuron-like phenotype and high monoSia and PolySia contents are highly susceptible to amyloid Aβ-42 toxicity. This toxicity may involve a change in neuron metabolism and promote a compensative/protective increase in PolySia, which, in turn, could favor amyloid binding to GM1, thus exacerbating cell dysmetabolism and further amyloid aggregation.
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Affiliation(s)
- Eleonora Sgambati
- Department of Biosciences and Territory, University of Molise, Contrada Fonte Lappone, Pesche, 86090 Isernia, Italy;
| | - Alessia Tani
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, University of Florence, Largo Brambilla 3, 50134 Florence, Italy; (A.T.); (S.Z.-O.); (D.N.)
| | - Manuela Leri
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Viale Morgagni 50, 50134 Florence, Italy;
| | - Giovanni Delfino
- Department of Biology (BIO), University of Florence, Via Giorgio La Pira 4, 50121 Florence, Italy;
| | - Sandra Zecchi-Orlandini
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, University of Florence, Largo Brambilla 3, 50134 Florence, Italy; (A.T.); (S.Z.-O.); (D.N.)
| | - Monica Bucciantini
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Viale Morgagni 50, 50134 Florence, Italy;
- Correspondence:
| | - Daniele Nosi
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, University of Florence, Largo Brambilla 3, 50134 Florence, Italy; (A.T.); (S.Z.-O.); (D.N.)
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3
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Bulyáki É, Kun J, Molnár T, Papp A, Micsonai A, Vadászi H, Márialigeti B, Kovács AI, Gellén G, Yamaguchi K, Lin Y, So M, Józsi M, Schlosser G, Lee YH, Liliom K, Goto Y, Kardos J. Pathogenic D76N Variant of β 2-Microglobulin: Synergy of Diverse Effects in Both the Native and Amyloid States. BIOLOGY 2021; 10:biology10111197. [PMID: 34827190 PMCID: PMC8614874 DOI: 10.3390/biology10111197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/11/2021] [Accepted: 11/11/2021] [Indexed: 01/13/2023]
Abstract
Simple Summary Elevated β2-microglobulin (β2m) serum levels cause serious complications in patients on long-term kidney dialysis by depositing in the form of amyloid fibrils in the osteoarticular system. Recently, a hereditary systemic amyloidosis was discovered, caused by a naturally occurring D76N β2m mutant exhibiting normal serum levels and a distinct, visceral deposition pattern. D76N β2m showed a structure remarkably similar to the wild-type (WT) protein, albeit with decreased thermodynamic stability and increased amyloidogenicity. Despite the extensive research, the molecular bases of the aberrant aggregation of β2m in vivo remains elusive. Here, using a variety of biophysical techniques, we investigated the role of the pathogenic D76N mutation in the amyloid formation of β2m by point mutations affecting the stabilizing ion-pairs of β2m. We found that, relative to WT β2m, the exceptional amyloidogenicity of the pathogenic D76N β2m variant is realized by the synergy of diverse effects of destabilized native structure, higher sensitivity to negatively charged amphiphilic molecules and polyphosphate, more effective fibril nucleation, higher conformational stability of fibrils, and elevated affinity for extracellular matrix proteins. Understanding the underlying molecular mechanisms might help to find target points for effective treatments against diseases associated with the deleterious aggregation of proteins. Abstract β2-microglobulin (β2m), the light chain of the MHC-I complex, is associated with dialysis-related amyloidosis (DRA). Recently, a hereditary systemic amyloidosis was discovered, caused by a naturally occurring D76N β2m variant, which showed a structure remarkably similar to the wild-type (WT) protein, albeit with decreased thermodynamic stability and increased amyloidogenicity. Here, we investigated the role of the D76N mutation in the amyloid formation of β2m by point mutations affecting the Asp76-Lys41 ion-pair of WT β2m and the charge cluster on Asp38. Using a variety of biophysical techniques, we investigated the conformational stability and partial unfolding of the native state of the variants, as well as their amyloidogenic propensity and the stability of amyloid fibrils under various conditions. Furthermore, we studied the intermolecular interactions of WT and mutant proteins with various binding partners that might have in vivo relevance. We found that, relative to WT β2m, the exceptional amyloidogenicity of the pathogenic D76N β2m variant is realized by the deleterious synergy of diverse effects of destabilized native structure, higher sensitivity to negatively charged amphiphilic molecules (e.g., lipids) and polyphosphate, more effective fibril nucleation, higher conformational stability of fibrils, and elevated affinity for extracellular components, including extracellular matrix proteins.
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Affiliation(s)
- Éva Bulyáki
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (É.B.); (J.K.); (A.M.); (H.V.)
| | - Judit Kun
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (É.B.); (J.K.); (A.M.); (H.V.)
| | - Tamás Molnár
- Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (T.M.); (B.M.); (A.I.K.)
| | - Alexandra Papp
- Complement Research Group, Department of Immunology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (A.P.); (M.J.)
| | - András Micsonai
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (É.B.); (J.K.); (A.M.); (H.V.)
| | - Henrietta Vadászi
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (É.B.); (J.K.); (A.M.); (H.V.)
| | - Borbála Márialigeti
- Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (T.M.); (B.M.); (A.I.K.)
| | - Attila István Kovács
- Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (T.M.); (B.M.); (A.I.K.)
| | - Gabriella Gellén
- Department of Analytical Chemistry, Institute of Chemistry, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (G.G.); (G.S.)
| | - Keiichi Yamaguchi
- Global Center for Medical Engineering and Informatics, Osaka University, Osaka 565-0871, Japan; (K.Y.); (Y.G.)
| | - Yuxi Lin
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute (KBSI), Ochang 28119, Korea; (Y.L.); (Y.-H.L.)
| | - Masatomo So
- Institute for Protein Research, Osaka University, Osaka 565-0871, Japan; or
| | - Mihály Józsi
- Complement Research Group, Department of Immunology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (A.P.); (M.J.)
- MTA-ELTE Complement Research Group, Eötvös Loránd Research Network (ELKH), Department of Immunology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary
| | - Gitta Schlosser
- Department of Analytical Chemistry, Institute of Chemistry, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (G.G.); (G.S.)
| | - Young-Ho Lee
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute (KBSI), Ochang 28119, Korea; (Y.L.); (Y.-H.L.)
- Bio-Analytical Science, University of Science and Technology (UST), Daejeon 34113, Korea
- Graduate School of Analytical Science and Technology (GRAST), Chungnam National University (CNU), Daejeon 34134, Korea
- Research Headquarters, Korea Brain Research Institute (KBRI), Daegu 41068, Korea
| | - Károly Liliom
- Department of Biophysics and Radiation Biology, Faculty of Medicine, Semmelweis University, 1094 Budapest, Hungary;
| | - Yuji Goto
- Global Center for Medical Engineering and Informatics, Osaka University, Osaka 565-0871, Japan; (K.Y.); (Y.G.)
- Institute for Protein Research, Osaka University, Osaka 565-0871, Japan; or
| | - József Kardos
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; (É.B.); (J.K.); (A.M.); (H.V.)
- Correspondence:
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4
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Errico S, Ramshini H, Capitini C, Canale C, Spaziano M, Barbut D, Calamai M, Zasloff M, Oropesa-Nuñez R, Vendruscolo M, Chiti F. Quantitative Measurement of the Affinity of Toxic and Nontoxic Misfolded Protein Oligomers for Lipid Bilayers and of its Modulation by Lipid Composition and Trodusquemine. ACS Chem Neurosci 2021; 12:3189-3202. [PMID: 34382791 PMCID: PMC8414483 DOI: 10.1021/acschemneuro.1c00327] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/29/2021] [Indexed: 12/13/2022] Open
Abstract
Many neurodegenerative diseases are associated with the self-assembly of peptides and proteins into fibrillar aggregates. Soluble misfolded oligomers formed during the aggregation process, or released by mature fibrils, play a relevant role in neurodegenerative processes through their interactions with neuronal membranes. However, the determinants of the cytotoxicity of these oligomers are still unclear. Here we used liposomes and toxic and nontoxic oligomers formed by the same protein to measure quantitatively the affinity of the two oligomeric species for lipid membranes. To this aim, we quantified the perturbation to the lipid membranes caused by the two oligomers by using the fluorescence quenching of two probes embedded in the polar and apolar regions of the lipid membranes and a well-defined protein-oligomer binding assay using fluorescently labeled oligomers to determine the Stern-Volmer and dissociation constants, respectively. With both approaches, we found that the toxic oligomers have a membrane affinity 20-25 times higher than that of nontoxic oligomers. Circular dichroism, intrinsic fluorescence, and FRET indicated that neither oligomer type changes its structure upon membrane interaction. Using liposomes enriched with trodusquemine, a potential small molecule drug known to penetrate lipid membranes and make them refractory to toxic oligomers, we found that the membrane affinity of the oligomers was remarkably lower. At protective concentrations of the small molecule, the binding of the oligomers to the lipid membranes was fully prevented. Furthermore, the affinity of the toxic oligomers for the lipid membranes was found to increase and slightly decrease with GM1 ganglioside and cholesterol content, respectively, indicating that physicochemical properties of lipid membranes modulate their affinity for misfolded oligomeric species.
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Affiliation(s)
- Silvia Errico
- Department
of Experimental and Clinical Biomedical Sciences, Section of Biochemistry, University of Florence, Florence 50134, Italy
- Centre
for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Hassan Ramshini
- Department
of Experimental and Clinical Biomedical Sciences, Section of Biochemistry, University of Florence, Florence 50134, Italy
- Department
of Biology, Payame Noor University, Tehran 19395-4697, Islamic Republic of Iran
| | - Claudia Capitini
- European
Laboratory for Non-linear Spectroscopy (LENS), Sesto Fiorentino 50019, Italy
- Department
of Physics and Astronomy, University of
Florence, Sesto
Fiorentino 50019, Italy
| | - Claudio Canale
- Department
of Physics, University of Genoa, Genoa 16146, Italy
| | - Martina Spaziano
- Department
of Experimental and Clinical Biomedical Sciences, Section of Biochemistry, University of Florence, Florence 50134, Italy
| | - Denise Barbut
- Enterin
Inc., 2005 Market Street, Philadelphia, Pennsylvania 19103, United States
| | - Martino Calamai
- European
Laboratory for Non-linear Spectroscopy (LENS), Sesto Fiorentino 50019, Italy
- National
Institute of Optics, National Research Council
of Italy (CNR), Florence 50125, Italy
| | - Michael Zasloff
- Enterin
Inc., 2005 Market Street, Philadelphia, Pennsylvania 19103, United States
- MedStar-Georgetown
Transplant Institute, Georgetown University
School of Medicine, Washington D.C. 20007, United States
| | - Reinier Oropesa-Nuñez
- Department
of Materials Science and Engineering, Uppsala
University, Uppsala SE-751 03, Sweden
| | - Michele Vendruscolo
- Centre
for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Fabrizio Chiti
- Department
of Experimental and Clinical Biomedical Sciences, Section of Biochemistry, University of Florence, Florence 50134, Italy
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5
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Leri M, Chaudhary H, Iashchishyn IA, Pansieri J, Svedružić ŽM, Gómez Alcalde S, Musteikyte G, Smirnovas V, Stefani M, Bucciantini M, Morozova-Roche LA. Natural Compound from Olive Oil Inhibits S100A9 Amyloid Formation and Cytotoxicity: Implications for Preventing Alzheimer's Disease. ACS Chem Neurosci 2021; 12:1905-1918. [PMID: 33979140 PMCID: PMC8291483 DOI: 10.1021/acschemneuro.0c00828] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
![]()
Polyphenolic compounds
in the Mediterranean diet have received
increasing attention due to their protective properties in amyloid
neurodegenerative and many other diseases. Here, we have demonstrated
for the first time that polyphenol oleuropein aglycone (OleA), which
is the most abundant compound in olive oil, has multiple potencies
for the inhibition of amyloid self-assembly of pro-inflammatory protein
S100A9 and the mitigation of the damaging effect of its amyloids on
neuroblastoma SH-SY5Y cells. OleA directly interacts with both native
and fibrillar S100A9 as shown by intrinsic fluorescence and molecular
dynamic simulation. OleA prevents S100A9 amyloid oligomerization as
shown using amyloid oligomer-specific antibodies and cross-β-sheet
formation detected by circular dichroism. It decreases the length
of amyloid fibrils measured by atomic force microscopy (AFM) as well
as reduces the effective rate of amyloid growth and the overall amyloid
load as derived from the kinetic analysis of amyloid formation. OleA
disintegrates already preformed fibrils of S100A9, converting them
into nonfibrillar and nontoxic aggregates as revealed by amyloid thioflavin-T
dye binding, AFM, and cytotoxicity assays. At the cellular level,
OleA targets S100A9 amyloids already at the membranes as shown by
immunofluorescence and fluorescence resonance energy transfer, significantly
reducing the amyloid accumulation in GM1 ganglioside containing membrane
rafts. OleA increases overall cell viability when neuroblastoma cells
are subjected to the amyloid load and alleviates amyloid-induced intracellular
rise of reactive oxidative species and free Ca2+. Since
S100A9 is both a pro-inflammatory and amyloidogenic protein, OleA
may effectively mitigate the pathological consequences of the S100A9-dependent
amyloid-neuroinflammatory cascade as well as provide protection from
neurodegeneration, if used within the Mediterranean diet as a potential
preventive measure.
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Affiliation(s)
- Manuela Leri
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50134 Florence, Italy
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, 50139 Florence, Italy
| | - Himanshu Chaudhary
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden
| | - Igor A. Iashchishyn
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden
| | - Jonathan Pansieri
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden
| | | | - Silvia Gómez Alcalde
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden
| | - Greta Musteikyte
- Institute of Biotechnology, Life Sciences Center, Vilnius University, LT-10257 Vilnius, Lithuania
| | - Vytautas Smirnovas
- Institute of Biotechnology, Life Sciences Center, Vilnius University, LT-10257 Vilnius, Lithuania
| | - Massimo Stefani
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50134 Florence, Italy
| | - Monica Bucciantini
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50134 Florence, Italy
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6
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Venko K, Novič M, Stoka V, Žerovnik E. Prediction of Transmembrane Regions, Cholesterol, and Ganglioside Binding Sites in Amyloid-Forming Proteins Indicate Potential for Amyloid Pore Formation. Front Mol Neurosci 2021; 14:619496. [PMID: 33642992 PMCID: PMC7902868 DOI: 10.3389/fnmol.2021.619496] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 01/12/2021] [Indexed: 12/26/2022] Open
Abstract
Besides amyloid fibrils, amyloid pores (APs) represent another mechanism of amyloid induced toxicity. Since hypothesis put forward by Arispe and collegues in 1993 that amyloid-beta makes ion-conducting channels and that Alzheimer's disease may be due to the toxic effect of these channels, many studies have confirmed that APs are formed by prefibrillar oligomers of amyloidogenic proteins and are a common source of cytotoxicity. The mechanism of pore formation is still not well-understood and the structure and imaging of APs in living cells remains an open issue. To get closer to understand AP formation we used predictive methods to assess the propensity of a set of 30 amyloid-forming proteins (AFPs) to form transmembrane channels. A range of amino-acid sequence tools were applied to predict AP domains of AFPs, and provided context on future experiments that are needed in order to contribute toward a deeper understanding of amyloid toxicity. In a set of 30 AFPs we predicted their amyloidogenic propensity, presence of transmembrane (TM) regions, and cholesterol (CBM) and ganglioside binding motifs (GBM), to which the oligomers likely bind. Noteworthy, all pathological AFPs share the presence of TM, CBM, and GBM regions, whereas the functional amyloids seem to show just one of these regions. For comparative purposes, we also analyzed a few examples of amyloid proteins that behave as biologically non-relevant AFPs. Based on the known experimental data on the β-amyloid and α-synuclein pore formation, we suggest that many AFPs have the potential for pore formation. Oligomerization and α-TM helix to β-TM strands transition on lipid rafts seem to be the common key events.
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Affiliation(s)
- Katja Venko
- Theory Department, National Institute of Chemistry, Ljubljana, Slovenia
| | - Marjana Novič
- Theory Department, National Institute of Chemistry, Ljubljana, Slovenia
| | - Veronika Stoka
- Department of Biochemistry and Molecular and Structural Biology, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Eva Žerovnik
- Department of Biochemistry and Molecular and Structural Biology, Jožef Stefan Institute, Ljubljana, Slovenia
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7
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Canepa E, Salassi S, de Marco AL, Lambruschini C, Odino D, Bochicchio D, Canepa F, Canale C, Dante S, Brescia R, Stellacci F, Rossi G, Relini A. Amphiphilic gold nanoparticles perturb phase separation in multidomain lipid membranes. NANOSCALE 2020; 12:19746-19759. [PMID: 32966489 DOI: 10.1039/d0nr05366j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Amphiphilic gold nanoparticles with diameters in the 2-4 nm range are promising as theranostic agents thanks to their spontaneous translocation through cell membranes. This study addresses the effects that these nanoparticles may have on a distinct feature of plasma membranes: lipid lateral phase separation. Atomic force microscopy, quartz crystal microbalance, and molecular dynamics are combined to study the interaction between model neuronal membranes, which spontaneously form ordered and disordered lipid domains, and amphiphilic gold nanoparticles having negatively charged surface functionalization. Nanoparticles are found to interact with the bilayer and form bilayer-embedded ordered aggregates. Nanoparticles also suppress lipid phase separation, in a concentration-dependent fashion. A general, yet simple thermodynamic model is developed to show that the change of lipid-lipid enthalpy is the dominant driving force towards the nanoparticle-induced destabilization of phase separation.
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Affiliation(s)
- Ester Canepa
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146 Genoa, Italy.
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8
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Loureiro RJS, Faísca PFN. The Early Phase of β2-Microglobulin Aggregation: Perspectives From Molecular Simulations. Front Mol Biosci 2020; 7:578433. [PMID: 33134317 PMCID: PMC7550760 DOI: 10.3389/fmolb.2020.578433] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 09/08/2020] [Indexed: 11/24/2022] Open
Abstract
Protein β2-microglobulin is the causing agent of two amyloidosis, dialysis related amyloidosis (DRA), affecting the bones and cartilages of individuals with chronic renal failure undergoing long-term hemodialysis, and a systemic amyloidosis, found in one French family, which impairs visceral organs. The protein’s small size and its biomedical significance attracted the attention of theoretical scientists, and there are now several studies addressing its aggregation mechanism in the context of molecular simulations. Here, we review the early phase of β2-microglobulin aggregation, by focusing on the identification and structural characterization of monomers with the ability to trigger aggregation, and initial small oligomers (dimers, tetramers, hexamers etc.) formed in the so-called nucleation phase. We focus our analysis on results from molecular simulations and integrate our views with those coming from in vitro experiments to provide a broader perspective of this interesting field of research. We also outline directions for future computer simulation studies.
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Affiliation(s)
- Rui J S Loureiro
- Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, University of Lisboa, Lisbon, Portugal
| | - Patrícia F N Faísca
- Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, University of Lisboa, Lisbon, Portugal.,Department of Physics, Faculty of Sciences, University of Lisboa, Lisbon, Portugal
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9
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Leri M, Vasarri M, Palazzi L, Barletta E, Nielsen E, Bucciantini M, Degl'Innocenti D. Maysin plays a protective role against α-Synuclein oligomers cytotoxicity by triggering autophagy activation. Food Chem Toxicol 2020; 144:111626. [PMID: 32738375 DOI: 10.1016/j.fct.2020.111626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/24/2020] [Accepted: 07/15/2020] [Indexed: 11/30/2022]
Abstract
Parkinson's disease (PD) is a widespread neurodegenerative disorder characterized by the progressive loss of neurons. The accumulation of aggregated forms of the α-Synuclein (Syn) protein is the main cause of neurotoxicity in PD by disrupting cellular homeostasis until neuronal death. Scientific research is constantly looking for natural products as preventive agents against the progression of several neurodisorders due their safety and non-toxic nature. Neuroprotective phytochemicals include Maysin (Mys), the most abundant C-glycosilflavone in corn silk. In this work, the Mys protective role against damage by Syn amyloid aggregates - oligomers and fibrils - was investigated in SH-SY5Y human neuroblastoma cells obtaining novel and interesting information concerning the Mys molecular mechanism of action. Mys showed effectiveness in preventing the typical toxic events induced by Syn amyloid aggregates, i.e. oxidative stress and imbalance of intracellular calcium homeostasis. Mys exhibited a cytoprotective role, especially against Syn oligomers injury, activating an autophagic degradative process, thus playing a key role on several features of amyloid neurotoxicity. Therefore, Mys could be proposed for the first time to the scientific community as an interesting novel natural compound that might allow to develop alternative strategies to prevent the damage of Syn oligomers involved in Parkinson's disease.
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Affiliation(s)
- Manuela Leri
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy; Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Viale Pieraccini, 6, 50139, Florence, Italy.
| | - Marzia Vasarri
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy.
| | - Luana Palazzi
- Department of Pharmaceutical Sciences, CRIBI Biotechnology Centre, University of Padua, via F. Marzolo 5, 35131, Padua, Italy.
| | - Emanuela Barletta
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy.
| | - Erik Nielsen
- Department of Biology and Biotechnology, University of Pavia, via Ferrata 9, 27100, Pavia, Italy.
| | - Monica Bucciantini
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy.
| | - Donatella Degl'Innocenti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy.
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10
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Bucciantini M, Leri M, Stefani M, Melki R, Zecchi-Orlandini S, Nosi D. The Amphipathic GM1 Molecule Stabilizes Amyloid Aggregates, Preventing their Cytotoxicity. Biophys J 2020; 119:326-336. [PMID: 32579964 DOI: 10.1016/j.bpj.2020.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 05/20/2020] [Accepted: 06/02/2020] [Indexed: 12/20/2022] Open
Abstract
Amyloid aggregates have been demonstrated to exert cytotoxic effects in several diseases. It is widely accepted that the complex and fascinating aggregation pathway involves a series of steps during which many heterogeneous intermediates are generated. This process may be greatly potentiated by the presence of amphipathic components of plasma membrane because they may serve as interaction, condensation, and nucleation points. However, there are few data regarding structural alterations induced by the binding between the amyloid fibrils and membrane components and its direct effects on cell integrity. In this study, we found, by 1-anilinonaphthalene 8-sulfonic acid and transmission electron microscopy/fast Fourier transform, that yeast prion Sup35 oligomers showed higher structural uniformity and altered surface properties when grown in the presence of monosialotetrahexosylganglioside, a component of the cell membrane. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and confocal/sensitized Förster resonance energy transfer analyses revealed that these fibrils showed low cytotoxicity and affinity to plasma membrane. Moreover, time-lapse analysis of Sup35 oligomer fibrillation on cells suggested that the amyloid aggregation process per se exerts cytotoxic effects through the interaction of amyloid intermediates with plasma membrane components. These data provide, to our knowledge, new insights to understand the mechanism of amyloid growth and cytotoxicity in the pathogenesis of amyloid diseases.
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Affiliation(s)
- Monica Bucciantini
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio," University of Florence, Florence, Italy.
| | - Manuela Leri
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio," University of Florence, Florence, Italy; Department of Neuroscience, Psychology, Area of Medicine and Health of the Child of the University of Florence, Florence, Italy
| | - Massimo Stefani
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio," University of Florence, Florence, Italy
| | - Ronald Melki
- Institut Francois Jacob, CEA and Laboratory of Neurodegenerative Diseases, CNRS 92265, Fontenay-Aux-Roses, France
| | | | - Daniele Nosi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
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11
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Bannai H, Niwa F, Sakuragi S, Mikoshiba K. Inhibitory synaptic transmission tuned by Ca 2+ and glutamate through the control of GABA A R lateral diffusion dynamics. Dev Growth Differ 2020; 62:398-406. [PMID: 32329058 PMCID: PMC7496684 DOI: 10.1111/dgd.12667] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 04/08/2020] [Accepted: 04/18/2020] [Indexed: 11/30/2022]
Abstract
The GABAergic synapses, a primary inhibitory synapse in the mammalian brain, is important for the normal development of brain circuits, and for the regulation of the excitation‐inhibition balance critical for brain function from the developmental stage throughout life. However, the molecular mechanism underlying the formation, maintenance, and modulation of GABAergic synapses is less understood compared to that of excitatory synapses. Quantum dot‐single particle tracking (QD‐SPT), a super‐resolution imaging technique that enables the analysis of membrane molecule dynamics at single‐molecule resolution, is a powerful tool to analyze the behavior of proteins and lipids on the plasma membrane. In this review, we summarize the recent application of QD‐SPT in understanding of GABAergic synaptic transmission. Here we introduce QD‐SPT experiments that provide further insights into the molecular mechanism supporting GABAergic synapses. QD‐SPT studies revealed that glutamate and Ca2+ signaling is involved in (a) the maintenance of GABAergic synapses, (b) GABAergic long‐term depression, and GABAergic long‐term potentiation, by specifically activating signaling pathways unique to each phenomenon. We also introduce a novel Ca2+ imaging technique to describe the diversity of Ca2+ signals that may activate the downstream signaling pathways that induce specific biological output.
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Affiliation(s)
- Hiroko Bannai
- School of Advanced Science and Engineering, Department of Electrical Engineering and Biosciences, Waseda University, Tokyo, Japan.,Department of Neurophysiology, Keio University School of Medicine, Tokyo, Japan.,Japan Science and Technology Agency, PRESTO, Kawaguchi, Saitama, Japan.,Laboratory for Developmental Neurobiology, RIKEN Center for Brain Science, Wako, Japan
| | - Fumihiro Niwa
- Laboratory for Developmental Neurobiology, RIKEN Center for Brain Science, Wako, Japan.,Institut de Biologie de l'ENS (IBENS), École Normale Supérieure, PSL Research University, INSERM, CNRS, Paris, France
| | - Shigeo Sakuragi
- School of Advanced Science and Engineering, Department of Electrical Engineering and Biosciences, Waseda University, Tokyo, Japan.,Department of Pharmacology, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - Katsuhiko Mikoshiba
- Laboratory for Developmental Neurobiology, RIKEN Center for Brain Science, Wako, Japan.,Shanghai Institute for Advanced Immunochemical Studies (SIAIS), ShanghaiTech University, Shanghai, China.,Department of Biomolecular Science, Faculty of Science, Toho University, Funabashi, Japan
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12
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Nediani C, Ruzzolini J, Romani A, Calorini L. Oleuropein, a Bioactive Compound from Olea europaea L., as a Potential Preventive and Therapeutic Agent in Non-Communicable Diseases. Antioxidants (Basel) 2019; 8:E578. [PMID: 31766676 PMCID: PMC6943788 DOI: 10.3390/antiox8120578] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/16/2019] [Accepted: 11/19/2019] [Indexed: 12/11/2022] Open
Abstract
Growing scientific literature data suggest that the intake of natural bioactive compounds plays a critical role in preventing or reducing the occurrence of human chronic non-communicable diseases (NCDs). Oleuropein, the main phenolic component of Olea europaea L., has attracted scientific attention for its several health beneficial properties such as antioxidant, anti-inflammatory, cardio- and neuro-protective, and anti-cancer. This article is a narrative review focused on the current literature concerning the effect of oleuropein in NCDs, such as neuro- and cardiovascular diseases, diabetes mellitus, chronic kidney diseases, and cancer, by its putative antioxidant and anti-inflammatory activity, but also for its other peculiar actions such as an autophagy inducer and amyloid fibril growth inhibitor and, finally, for its anti-cancer effect. Despite the increasing number of published studies, looking at the beneficial effects of oleuropein, there is limited clinical evidence focused on the benefits of this polyphenol as a nutraceutical product in humans, and many problems are still to be resolved about its bioavailability, bioaccessibility, and dosage. Thus, future clinical randomized trials are needed to establish the relation between the beneficial effects and the mechanisms of action occurring in the human body in response to the intake of oleuropein.
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Affiliation(s)
- Chiara Nediani
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, viale Morgagni 50, 50134 Florence, Italy; (J.R.); (L.C.)
| | - Jessica Ruzzolini
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, viale Morgagni 50, 50134 Florence, Italy; (J.R.); (L.C.)
| | - Annalisa Romani
- PHYTOLAB (Pharmaceutical, Cosmetic, Food Supplement, Technology and Analysis)-DiSIA, University of Florence, Via U. Schiff, 6, 50019 Sesto Fiorentino, Florence, Italy;
| | - Lido Calorini
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, viale Morgagni 50, 50134 Florence, Italy; (J.R.); (L.C.)
- Istituto Toscano Tumori and Center of Excellence for Research, Transfer and High Education (DENOTHE), University of Florence, Piazza di San Marco 4, 50121 Florence, Italy
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13
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Karamanos TK, Jackson MP, Calabrese AN, Goodchild SC, Cawood EE, Thompson GS, Kalverda AP, Hewitt EW, Radford SE. Structural mapping of oligomeric intermediates in an amyloid assembly pathway. eLife 2019; 8:46574. [PMID: 31552823 PMCID: PMC6783270 DOI: 10.7554/elife.46574] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 09/24/2019] [Indexed: 01/02/2023] Open
Abstract
Transient oligomers are commonly formed in the early stages of amyloid assembly. Determining the structure(s) of these species and defining their role(s) in assembly is key to devising new routes to control disease. Here, using a combination of chemical kinetics, NMR spectroscopy and other biophysical methods, we identify and structurally characterize the oligomers required for amyloid assembly of the protein ΔN6, a truncation variant of human β2-microglobulin (β2m) found in amyloid deposits in the joints of patients with dialysis-related amyloidosis. The results reveal an assembly pathway which is initiated by the formation of head-to-head non-toxic dimers and hexamers en route to amyloid fibrils. Comparison with inhibitory dimers shows that precise subunit organization determines amyloid assembly, while dynamics in the C-terminal strand hint to the initiation of cross-β structure formation. The results provide a detailed structural view of early amyloid assembly involving structured species that are not cytotoxic.
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Affiliation(s)
- Theodoros K Karamanos
- The Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.,School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Matthew P Jackson
- The Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.,School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Antonio N Calabrese
- The Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.,School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Sophia C Goodchild
- The Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.,School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Emma E Cawood
- The Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.,School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Gary S Thompson
- The Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.,School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Arnout P Kalverda
- The Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.,School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Eric W Hewitt
- The Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.,School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Sheena E Radford
- The Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.,School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
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14
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Dhouafli Z, Leri M, Bucciantini M, Stefani M, Gadhoumi H, Mahjoub B, Ben Jannet H, Guillard J, Tounsi MS, Ksouri R, Hayouni EA. A new purified Lawsoniaside remodels amyloid-β42 fibrillation into a less toxic and non-amyloidogenic pathway. Int J Biol Macromol 2018; 114:830-835. [DOI: 10.1016/j.ijbiomac.2018.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/28/2018] [Accepted: 04/03/2018] [Indexed: 10/17/2022]
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15
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Oleuropein aglycone: A polyphenol with different targets against amyloid toxicity. Biochim Biophys Acta Gen Subj 2018; 1862:1432-1442. [DOI: 10.1016/j.bbagen.2018.03.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 02/23/2018] [Accepted: 03/20/2018] [Indexed: 12/29/2022]
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16
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Oleuropein aglycone stabilizes the monomeric α-synuclein and favours the growth of non-toxic aggregates. Sci Rep 2018; 8:8337. [PMID: 29844450 PMCID: PMC5974307 DOI: 10.1038/s41598-018-26645-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 05/15/2018] [Indexed: 01/03/2023] Open
Abstract
α-synuclein plays a key role in the pathogenesis of Parkinson’s disease (PD); its deposits are found as amyloid fibrils in Lewy bodies and Lewy neurites, the histopathological hallmarks of PD. Amyloid fibrillation is a progressive polymerization path starting from peptide/protein misfolding and proceeding through the transient growth of oligomeric intermediates widely considered as the most toxic species. Consequently, a promising approach of intervention against PD might be preventing α-synuclein build-up, misfolding and aggregation. A possible strategy involves the use of small molecules able to slow down the aggregation process or to alter oligomer conformation favouring the growth of non-pathogenic species. Here, we show that oleuropein aglycone (OleA), the main olive oil polyphenol, exhibits anti-amyloidogenic power in vitro by interacting with, and stabilizing, α-synuclein monomers thus hampering the growth of on-pathway oligomers and favouring the growth of stable and harmless aggregates with no tendency to evolve into other cytotoxic amyloids. We investigated the molecular basis of such interference by both biophysical techniques and limited proteolysis; aggregate morphology was monitored by electron microscopy. We also found that OleA reduces the cytotoxicity of α-synuclein aggregates by hindering their binding to cell membrane components and preventing the resulting oxidative damage to cells.
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17
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Cheng B, Li Y, Ma L, Wang Z, Petersen RB, Zheng L, Chen Y, Huang K. Interaction between amyloidogenic proteins and biomembranes in protein misfolding diseases: Mechanisms, contributors, and therapy. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:1876-1888. [PMID: 29466701 DOI: 10.1016/j.bbamem.2018.02.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 02/12/2018] [Accepted: 02/13/2018] [Indexed: 12/14/2022]
Abstract
The toxic deposition of misfolded amyloidogenic proteins is associated with more than fifty protein misfolding diseases (PMDs), including Alzheimer's disease, Parkinson's disease and type 2 diabetes mellitus. Protein deposition is a multi-step process modulated by a variety of factors, in particular by membrane-protein interaction. The interaction results in permeabilization of biomembranes contributing to the cytotoxicity that leads to PMDs. Different biological and physiochemical factors, such as protein sequence, lipid composition, and chaperones, are known to affect the membrane-protein interaction. Here, we provide a comprehensive review of the mechanisms and contributing factors of the interaction between biomembranes and amyloidogenic proteins, and a summary of the therapeutic approaches to PMDs that target this interaction. This article is part of a Special Issue entitled: Protein Aggregation and Misfolding at the Cell Membrane Interface edited by Ayyalusamy Ramamoorthy.
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Affiliation(s)
- Biao Cheng
- Department of Pharmacy, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China; Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - Yang Li
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Liang Ma
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhuoyi Wang
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Robert B Petersen
- Foundational Sciences, Central Michigan University College of Medicine, Mt. Pleasant, MI 48858, USA
| | - Ling Zheng
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan 430072, China
| | - Yuchen Chen
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Kun Huang
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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18
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Mukhopadhyay R, Kazi J, Debnath MC. Synthesis and characterization of copper nanoparticles stabilized with Quisqualis indica extract: Evaluation of its cytotoxicity and apoptosis in B16F10 melanoma cells. Biomed Pharmacother 2017; 97:1373-1385. [PMID: 29156527 DOI: 10.1016/j.biopha.2017.10.167] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/27/2017] [Accepted: 10/31/2017] [Indexed: 12/11/2022] Open
Abstract
Green synthesis of metallic nanoparticles is a cost-effective environment-friendly technique and Quisqualis indica has ethnomedicinal values. With this background in this study, the floral extract of Q. indica was used to fabricate copper nanoparticles (QCuNPs) from copper acetate. Biophysical analysis revealed the formation of spherical, monodisperse, crystalline QCuNPs. Significant cytotoxic potentials of the nanoformulation were determined by MTT and lactate dehydrogenase (LDH) assay on B16F10 melanoma cells. Estimation of GSH and ROS demonstrated that QCuNPs induced melanoma cell death by induction of oxidative stress. Gene transcript analysis showed up-regulation of caspase-dependent as well as caspase-independent (AIF) apoptotic genes in treated cells. Comparative proteomics study mostly showed the abundance of apoptotic and cell cycle arrest proteins in treated samples. The in vivo therapeutic efficacy was studied in mice bearing B16F10 melanoma tumor where a significant decrease in tumor growth was observed in nanoparticles treated animal model. In conclusion, QCuNPs caused cytotoxicity and apoptosis in melanoma cells and its mechanism was established from gene expression and proteomic studies. QCuNPs exhibited potential suppression of B16F10 melanoma cell proliferation and substantial inhibition of tumor growth in animals. As per our information, this is the first study exploring the potential of Q. indica for the formulation of eco-friendly copper nanoparticle which will have great future application in the medicinal field.
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Affiliation(s)
- Ria Mukhopadhyay
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata,700032, India
| | - Julekha Kazi
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata,700032, India
| | - Mita Chatterjee Debnath
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata,700032, India.
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19
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Canale C, Oropesa-Nuñez R, Diaspro A, Dante S. Amyloid and membrane complexity: The toxic interplay revealed by AFM. Semin Cell Dev Biol 2017; 73:82-94. [PMID: 28860102 DOI: 10.1016/j.semcdb.2017.08.046] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/21/2017] [Accepted: 08/25/2017] [Indexed: 01/05/2023]
Abstract
Lipid membranes play a fundamental role in the pathological development of protein misfolding diseases. Several pieces of evidence suggest that the lipid membrane could act as a catalytic surface for protein aggregation. Furthermore, a leading theory indicates the interaction between the cell membrane and misfolded oligomer species as the responsible for cytotoxicity, hence, for neurodegeneration in disorders such as Alzheimer's and Parkinson's disease. The definition of the mechanisms that drive the interaction between pathological protein aggregates and plasma membrane is fundamental for the development of effective therapies for a large class of diseases. Atomic force microscopy (AFM) has been employed to study how amyloid aggregates affect the cell physiological properties. Considerable efforts were spent to characterize the interaction with model systems, i.e., planar supported lipid bilayers, but some works also addressed the problem directly on living cells. Here, an overview of the main works involving the use of the AFM on both model system and living cells will be provided. Different kind of approaches will be presented, as well as the main results derived from the AFM analysis.
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Affiliation(s)
- Claudio Canale
- Department of Nanophysics. Istituto Italiano di Tecnologia. Via Morego 30, 16163 Genova, Italy; Department of Physics, University of Genova, via Dodecaneso 33, 16146 Genova, Italy.
| | - Reinier Oropesa-Nuñez
- Department of Nanophysics. Istituto Italiano di Tecnologia. Via Morego 30, 16163 Genova, Italy; DIBRIS Department, University of Genova, viale Causa 13, 16145, Genova, Italy
| | - Alberto Diaspro
- Department of Nanophysics. Istituto Italiano di Tecnologia. Via Morego 30, 16163 Genova, Italy; Department of Physics, University of Genova, via Dodecaneso 33, 16146 Genova, Italy
| | - Silvia Dante
- Department of Nanophysics. Istituto Italiano di Tecnologia. Via Morego 30, 16163 Genova, Italy
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20
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Sartiani L, Bucciantini M, Spinelli V, Leri M, Natalello A, Nosi D, Maria Doglia S, Relini A, Penco A, Giorgetti S, Gerace E, Mannaioni G, Bellotti V, Rigacci S, Cerbai E, Stefani M. Biochemical and Electrophysiological Modification of Amyloid Transthyretin on Cardiomyocytes. Biophys J 2017; 111:2024-2038. [PMID: 27806283 DOI: 10.1016/j.bpj.2016.09.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/26/2016] [Accepted: 09/06/2016] [Indexed: 12/26/2022] Open
Abstract
Transthyretin (TTR) amyloidoses are familial or sporadic degenerative conditions that often feature heavy cardiac involvement. Presently, no effective pharmacological therapy for TTR amyloidoses is available, mostly due to a substantial lack of knowledge about both the molecular mechanisms of TTR aggregation in tissue and the ensuing functional and viability modifications that occur in aggregate-exposed cells. TTR amyloidoses are of particular interest regarding the relation between functional and viability impairment in aggregate-exposed excitable cells such as peripheral neurons and cardiomyocytes. In particular, the latter cells provide an opportunity to investigate in parallel the electrophysiological and biochemical modifications that take place when the cells are exposed for various lengths of time to variously aggregated wild-type TTR, a condition that characterizes senile systemic amyloidosis. In this study, we investigated biochemical and electrophysiological modifications in cardiomyocytes exposed to amyloid oligomers or fibrils of wild-type TTR or to its T4-stabilized form, which resists tetramer disassembly, misfolding, and aggregation. Amyloid TTR cytotoxicity results in mitochondrial potential modification, oxidative stress, deregulation of cytoplasmic Ca2+ levels, and Ca2+ cycling. The altered intracellular Ca2+ cycling causes a prolongation of the action potential, as determined by whole-cell recordings of action potentials on isolated mouse ventricular myocytes, which may contribute to the development of cellular arrhythmias and conduction alterations often seen in patients with TTR amyloidosis. Our data add information about the biochemical, functional, and viability alterations that occur in cardiomyocytes exposed to aggregated TTR, and provide clues as to the molecular and physiological basis of heart dysfunction in sporadic senile systemic amyloidosis and familial amyloid cardiomyopathy forms of TTR amyloidoses.
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Affiliation(s)
- Laura Sartiani
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy; Center of Molecular Medicine, University of Florence, Florence, Italy
| | - Monica Bucciantini
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio,", University of Florence, Florence, Italy; Research Centre on the Molecular Basis of Neurodegeneration, University of Florence, Florence, Italy.
| | - Valentina Spinelli
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy; Center of Molecular Medicine, University of Florence, Florence, Italy
| | - Manuela Leri
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio,", University of Florence, Florence, Italy
| | - Antonino Natalello
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Daniele Nosi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Silvia Maria Doglia
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | | | - Amanda Penco
- Department of Physics, University of Genoa, Genoa, Italy
| | - Sofia Giorgetti
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Pavia, Italy
| | - Elisabetta Gerace
- Department of Health Science, University of Florence, Florence, Italy
| | - Guido Mannaioni
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
| | - Vittorio Bellotti
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Pavia, Italy; Wolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London, United Kingdom
| | - Stefania Rigacci
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio,", University of Florence, Florence, Italy
| | - Elisabetta Cerbai
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy; Center of Molecular Medicine, University of Florence, Florence, Italy; Research Centre on the Molecular Basis of Neurodegeneration, University of Florence, Florence, Italy
| | - Massimo Stefani
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio,", University of Florence, Florence, Italy; Research Centre on the Molecular Basis of Neurodegeneration, University of Florence, Florence, Italy
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21
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Catechol-Containing Hydroxylated Biomimetic 4-Thiaflavanes as Inhibitors of Amyloid Aggregation. Biomimetics (Basel) 2017; 2:biomimetics2020006. [PMID: 31105169 PMCID: PMC6477597 DOI: 10.3390/biomimetics2020006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 05/03/2017] [Accepted: 05/04/2017] [Indexed: 01/03/2023] Open
Abstract
The study of compounds able to interfere in various ways with amyloid aggregation is of paramount importance in amyloid research. Molecules characterized by a 4-thiaflavane skeleton have received great attention in chemical, medicinal, and pharmaceutical research. Such molecules, especially polyhydroxylated 4-thiaflavanes, can be considered as structural mimickers of several natural polyphenols that have been previously demonstrated to bind and impair amyloid fibril formation. In this work, we tested five different 4-thiaflavanes on the hen egg-white lysozyme (HEWL) amyloid model for their potential anti-amyloid properties. By combining a thioflavin T assay, atomic force microscopy, and a cell toxicity assay, we demonstrated that such compounds can impair the formation of high-order amyloid aggregates and mature fibrils. Despite this, the tested 4-thiaflavanes, although non-toxic per se, are not able to prevent amyloid toxicity on human neuroblastoma cells. Rather, they proved to block early aggregates in a stable, toxic conformation. Accordingly, 4-thiaflavanes can be proposed for further studies aimed at identifying blocking agents for the study of toxicity mechanisms of amyloid aggregation.
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22
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Raimondi S, Porcari R, Mangione PP, Verona G, Marcoux J, Giorgetti S, Taylor GW, Ellmerich S, Ballico M, Zanini S, Pardon E, Al-Shawi R, Simons JP, Corazza A, Fogolari F, Leri M, Stefani M, Bucciantini M, Gillmore JD, Hawkins PN, Valli M, Stoppini M, Robinson CV, Steyaert J, Esposito G, Bellotti V. A specific nanobody prevents amyloidogenesis of D76N β 2-microglobulin in vitro and modifies its tissue distribution in vivo. Sci Rep 2017; 7:46711. [PMID: 28429761 PMCID: PMC5399440 DOI: 10.1038/srep46711] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 03/23/2017] [Indexed: 11/24/2022] Open
Abstract
Systemic amyloidosis is caused by misfolding and aggregation of globular proteins in vivo for which effective treatments are urgently needed. Inhibition of protein self-aggregation represents an attractive therapeutic strategy. Studies on the amyloidogenic variant of β2-microglobulin, D76N, causing hereditary systemic amyloidosis, have become particularly relevant since fibrils are formed in vitro in physiologically relevant conditions. Here we compare the potency of two previously described inhibitors of wild type β2-microglobulin fibrillogenesis, doxycycline and single domain antibodies (nanobodies). The β2-microglobulin -binding nanobody, Nb24, more potently inhibits D76N β2-microglobulin fibrillogenesis than doxycycline with complete abrogation of fibril formation. In β2-microglobulin knock out mice, the D76N β2-microglobulin/ Nb24 pre-formed complex, is cleared from the circulation at the same rate as the uncomplexed protein; however, the analysis of tissue distribution reveals that the interaction with the antibody reduces the concentration of the variant protein in the heart but does not modify the tissue distribution of wild type β2-microglobulin. These findings strongly support the potential therapeutic use of this antibody in the treatment of systemic amyloidosis.
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Affiliation(s)
- Sara Raimondi
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Via Taramelli 3b, 27100 Pavia, Italy
| | - Riccardo Porcari
- Wolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London NW3 2PF, UK
| | - P Patrizia Mangione
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Via Taramelli 3b, 27100 Pavia, Italy.,Wolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London NW3 2PF, UK
| | - Guglielmo Verona
- Wolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London NW3 2PF, UK
| | - Julien Marcoux
- Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
| | - Sofia Giorgetti
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Via Taramelli 3b, 27100 Pavia, Italy
| | - Graham W Taylor
- Wolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London NW3 2PF, UK
| | - Stephan Ellmerich
- Wolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London NW3 2PF, UK
| | - Maurizio Ballico
- Science and Math Division, New York University at Abu Dhabi, Abu Dhabi, UAE
| | - Stefano Zanini
- Science and Math Division, New York University at Abu Dhabi, Abu Dhabi, UAE
| | - Els Pardon
- Structural Biology Research Centre, VIB, Pleinlaan 2, 1050, Brussel, Belgium.,Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussel, Belgium
| | - Raya Al-Shawi
- Centre for Biomedical Science, Division of Medicine, University College London, London NW3 2PF, UK
| | - J Paul Simons
- Wolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London NW3 2PF, UK
| | - Alessandra Corazza
- Department of Medical and Biological Sciences (DSMB), University of Udine, Piazzale Kolbe 4, 33100 Udine, Italy.,Istituto Nazionale Biostrutture e Biosistemi, Viale Medaglie d'Oro 305, 00136 Roma, Italy
| | - Federico Fogolari
- Istituto Nazionale Biostrutture e Biosistemi, Viale Medaglie d'Oro 305, 00136 Roma, Italy.,Department of Mathematics, Computer Science and Physics, University of Udine, Piazzale Kolbe 4, 33100 Udine, Italy
| | - Manuela Leri
- Department of Biomedical, Experimental and Clinical Sciences 'Mario Serio', University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Massimo Stefani
- Department of Biomedical, Experimental and Clinical Sciences 'Mario Serio', University of Florence, Viale Morgagni 50, 50134 Florence, Italy.,Research Centre for Molecular Basis of Neurodegeneration, 50134 Florence, Italy
| | - Monica Bucciantini
- Department of Biomedical, Experimental and Clinical Sciences 'Mario Serio', University of Florence, Viale Morgagni 50, 50134 Florence, Italy.,Research Centre for Molecular Basis of Neurodegeneration, 50134 Florence, Italy
| | - Julian D Gillmore
- National Amyloidosis Centre, University College London, London NW3 2PF, UK
| | - Philip N Hawkins
- National Amyloidosis Centre, University College London, London NW3 2PF, UK
| | - Maurizia Valli
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Via Taramelli 3b, 27100 Pavia, Italy
| | - Monica Stoppini
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Via Taramelli 3b, 27100 Pavia, Italy
| | - Carol V Robinson
- Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK
| | - Jan Steyaert
- Structural Biology Research Centre, VIB, Pleinlaan 2, 1050, Brussel, Belgium.,Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussel, Belgium
| | - Gennaro Esposito
- Science and Math Division, New York University at Abu Dhabi, Abu Dhabi, UAE.,Istituto Nazionale Biostrutture e Biosistemi, Viale Medaglie d'Oro 305, 00136 Roma, Italy.,Department of Mathematics, Computer Science and Physics, University of Udine, Piazzale Kolbe 4, 33100 Udine, Italy
| | - Vittorio Bellotti
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Via Taramelli 3b, 27100 Pavia, Italy.,Wolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London NW3 2PF, UK
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23
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Bascetin R, Admane K, Agniel R, Boudou T, Doussineau T, Antoine R, Gallet O, Leroy-Dudal J, Vendrely C. Amyloid-like aggregates formation by blood plasma fibronectin. Int J Biol Macromol 2017; 97:733-743. [PMID: 28109813 DOI: 10.1016/j.ijbiomac.2017.01.061] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 01/06/2017] [Accepted: 01/12/2017] [Indexed: 10/20/2022]
Abstract
Fibronectin (FN) is a multifunctional glycoprotein of the extracellular matrix (ECM) playing critical roles in physiological and pathological cell processes like adhesion, migration, growth, and differentiation. These various functions of FN are modulated by its supramolecular state. Indeed, FN can polymerize into different types of assemblies like fibrils and aggregates. However, the mechanism of polymerization and the effects of such assemblies on cell behaviors still remain to be elucidated. Here we show that upon irreversible thermal denaturation, human blood plasma fibronectin forms high molecular weight aggregates. These compact and globular aggregates show amyloid features: they are stabilized by intermolecular b-sheets, they bind Thioflavin T and they are resistant to reducing and denaturing agents. Their characterization by electrospray ionization charge detection mass spectrometry shows that two populations can be distinguished according to the mass and charge density. Despite their amyloid features and the presence of hydrophobic patches on their surface, these aggregates are not toxic for cells. However, their binding abilities to gelatin and RGD are drastically decreased compare to native FN, suggesting possible effects on ECM-cell interactions.
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Affiliation(s)
- Rümeyza Bascetin
- ERRMECe, I-MAT FD4122, Université de Cergy-Pontoise, MIR, rue Descartes, 95031, Neuville sur Oise Cedex, France
| | - Khadija Admane
- ERRMECe, I-MAT FD4122, Université de Cergy-Pontoise, MIR, rue Descartes, 95031, Neuville sur Oise Cedex, France
| | - Rémy Agniel
- ERRMECe, I-MAT FD4122, Université de Cergy-Pontoise, MIR, rue Descartes, 95031, Neuville sur Oise Cedex, France
| | - Thomas Boudou
- Université Grenoble Alpes, Institut Technologique de Grenoble, CNRS, UMR 5628, LMGP, 3 Parvis Louis Néel, 38016, Grenoble, France
| | - Tristan Doussineau
- Université Lyon 1-CNRS, Université de Lyon, UMR5306, Institut Lumière Matière, 69622, Villeurbanne, France
| | - Rodolphe Antoine
- Université Lyon 1-CNRS, Université de Lyon, UMR5306, Institut Lumière Matière, 69622, Villeurbanne, France
| | - Olivier Gallet
- ERRMECe, I-MAT FD4122, Université de Cergy-Pontoise, MIR, rue Descartes, 95031, Neuville sur Oise Cedex, France
| | - Johanne Leroy-Dudal
- ERRMECe, I-MAT FD4122, Université de Cergy-Pontoise, MIR, rue Descartes, 95031, Neuville sur Oise Cedex, France
| | - Charlotte Vendrely
- ERRMECe, I-MAT FD4122, Université de Cergy-Pontoise, MIR, rue Descartes, 95031, Neuville sur Oise Cedex, France.
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