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Porcu S, Corpino R, Carbonaro CM, Ricci PC, Vargiu AV, Sanna AL, Sforazzini G, Chiriu D. Promising Molecular Architectures for Two-Photon Probes in the Diagnosis of α-Synuclein Aggregates. Molecules 2024; 29:2817. [PMID: 38930882 PMCID: PMC11207056 DOI: 10.3390/molecules29122817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/24/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
The abnormal deposition of protein in the brain is the central factor in neurodegenerative disorders (NDs). These detrimental aggregates, stemming from the misfolding and subsequent irregular aggregation of α-synuclein protein, are primarily accountable for conditions such as Parkinson's disease, Alzheimer's disease, and dementia. Two-photon-excited (TPE) probes are a promising tool for the early-stage diagnosis of these pathologies as they provide accurate spatial resolution, minimal intrusion, and the ability for prolonged observation. To identify compounds with the potential to function as diagnostic probes using two-photon techniques, we explore three distinct categories of compounds: Hydroxyl azobenzene (AZO-OH); Dicyano-vinyl bithiophene (DCVBT); and Tetra-amino phthalocyanine (PcZnNH2). The molecules were structurally and optically characterized using a multi-technique approach via UV-vis absorption, Raman spectroscopy, three-dimensional fluorescence mapping (PLE), time-resolved photoluminescence (TRPL), and pump and probe measurements. Furthermore, quantum chemical and molecular docking calculations were performed to provide insights into the photophysical properties of the compounds as well as to assess their affinity with the α-synuclein protein. This innovative approach seeks to enhance the accuracy of in vivo probing, contributing to early Parkinson's disease (PD) detection and ultimately allowing for targeted intervention strategies.
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Affiliation(s)
- Stefania Porcu
- Department of Physics, University of Cagliari, Cittadella Universitaria, SP n°8, 09042 Monserrato, CA, Italy; (S.P.); (R.C.); (C.M.C.); (P.C.R.); (A.V.V.)
| | - Riccardo Corpino
- Department of Physics, University of Cagliari, Cittadella Universitaria, SP n°8, 09042 Monserrato, CA, Italy; (S.P.); (R.C.); (C.M.C.); (P.C.R.); (A.V.V.)
| | - Carlo Maria Carbonaro
- Department of Physics, University of Cagliari, Cittadella Universitaria, SP n°8, 09042 Monserrato, CA, Italy; (S.P.); (R.C.); (C.M.C.); (P.C.R.); (A.V.V.)
| | - Pier Carlo Ricci
- Department of Physics, University of Cagliari, Cittadella Universitaria, SP n°8, 09042 Monserrato, CA, Italy; (S.P.); (R.C.); (C.M.C.); (P.C.R.); (A.V.V.)
| | - Attilio Vittorio Vargiu
- Department of Physics, University of Cagliari, Cittadella Universitaria, SP n°8, 09042 Monserrato, CA, Italy; (S.P.); (R.C.); (C.M.C.); (P.C.R.); (A.V.V.)
| | - Anna Laura Sanna
- Department of Chemistry and Hearth Science, University of Cagliari, Cittadella Universitaria, SP n°8, 09042 Monserrato, CA, Italy;
| | - Giuseppe Sforazzini
- Department of Chemistry and Hearth Science, University of Cagliari, Cittadella Universitaria, SP n°8, 09042 Monserrato, CA, Italy;
| | - Daniele Chiriu
- Department of Physics, University of Cagliari, Cittadella Universitaria, SP n°8, 09042 Monserrato, CA, Italy; (S.P.); (R.C.); (C.M.C.); (P.C.R.); (A.V.V.)
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2
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Maftei A, Cojocaru C, Dobromir M, Ignat M, Neamțu M. Novel nanohybrid iron (II/III) phthalocyanine-based carbon nanotubes as catalysts for organic pollutant removal: process optimization by chemometric approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:35651-35665. [PMID: 38740683 DOI: 10.1007/s11356-024-33653-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 05/07/2024] [Indexed: 05/16/2024]
Abstract
In the present study, two iron phthalocyanine (FePc)-based nanocatalysts were synthesized and fully characterized. The carbon nanotubes (CNT) functionalized in an easy way with either Fe(II)Pc or Fe(III)Pc exhibit a very good catalytical activity. The activity in real wastewater effluent was comparable with the activity in distilled water. The procedure of modeling and optimizing with the assistance of chemometrics, utilizing design of experiments (DOE) and response surface methodology (RSM), revealed the conditions of optimum for decaying Reactive Yellow 84 on the nanocatalysts FePc_CNT. These optimal conditions included a catalyst dose of 1.70 g/L and an initial concentration (C0) of 20.0 mg/L. Under the indicated optimal conditions, the experimental findings verified that the removal efficiency was equal to Y = 98.92%, representing the highest observed value in this study. Under UVA light, after only 15 min of reaction, over 94% of dye was removed using both catalysts. The reuse experiments show that the activity of both nanohybrid material based on FePc-CNT slightly decreases over four consecutive runs. The quenching experiments show that RY84 was removed through radical pathways (O2•- and •OH) as well as non-radical pathways (1O2 and direct electron transfer).
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Affiliation(s)
- Andreea Maftei
- Department of Exact and Natural Sciences, Institute of Interdisciplinary Research, Alexandru Ioan Cuza University of Iasi, Bv. Carol I, no. 11, 700506, Iasi, Romania
| | - Corneliu Cojocaru
- Laboratory of Inorganic Polymers, Petru Poni Institute of Macromolecular Chemistry, 41A Aleea Grigore Ghica Vodă, 700487, Iasi, Romania
| | - Marius Dobromir
- Department of Exact and Natural Sciences, Institute of Interdisciplinary Research, Alexandru Ioan Cuza University of Iasi, Bv. Carol I, no. 11, 700506, Iasi, Romania
| | - Maria Ignat
- Laboratory of Inorganic Polymers, Petru Poni Institute of Macromolecular Chemistry, 41A Aleea Grigore Ghica Vodă, 700487, Iasi, Romania
- Laboratory of Materials Chemistry, Department of Chemistry, Alexandru Ioan Cuza University, Bv. Carol I, no. 11, 700506, Iasi, Romania
| | - Mariana Neamțu
- Department of Exact and Natural Sciences, Institute of Interdisciplinary Research, Alexandru Ioan Cuza University of Iasi, Bv. Carol I, no. 11, 700506, Iasi, Romania.
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3
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Zang WB, Wei HL, Zhang WW, Ma W, Li J, Yao Y. Curcumin hybrid molecules for the treatment of Alzheimer's disease: Structure and pharmacological activities. Eur J Med Chem 2024; 265:116070. [PMID: 38134747 DOI: 10.1016/j.ejmech.2023.116070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/03/2023] [Accepted: 12/16/2023] [Indexed: 12/24/2023]
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease among the elderly. Contemporary treatments can only relieve symptoms but fail to delay disease progression. Curcumin is a naturally derived compound that has demonstrated significant therapeutic effects in AD treatment. Recently, molecular hybridization has been utilized to combine the pharmacophoric groups present in curcumin with those of other AD drugs, resulting in a series of novel compounds that enhance the therapeutic efficacy through multiple mechanisms. In this review, we firstly provide a concise summary of various pathogenetic hypotheses of AD and the mechanism of action of curcumin in AD, as well as the concept of molecular hybridization. Subsequently, we focus on the recent development of hybrid molecules derived from curcumin, summarizing their structures and pharmacological activities, including cholinesterase inhibitory activity, Aβ aggregation inhibitory activity, antioxidant activity, and other activities. The structure-activity relationships were further discussed.
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Affiliation(s)
- Wei-Biao Zang
- School of Pharmacy, Ningxia Medical University, Yinchuan, 750004, China
| | - Hui-Ling Wei
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China
| | - Wei-Wei Zhang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China
| | - Wei Ma
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China
| | - Juan Li
- School of Pharmacy, Ningxia Medical University, Yinchuan, 750004, China; Ningxia Engineering and Technology Research Center for Modernization of Characteristic Chinese Medicine, and Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China.
| | - Yao Yao
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China.
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4
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Phthalocyanine photosensitizers with bathochromic shift, of suitable brightness, capable of producing singlet oxygen with effective efficiency. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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5
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Almeida ZL, Brito RMM. Amyloid Disassembly: What Can We Learn from Chaperones? Biomedicines 2022; 10:3276. [PMID: 36552032 PMCID: PMC9776232 DOI: 10.3390/biomedicines10123276] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/14/2022] [Accepted: 09/26/2022] [Indexed: 12/23/2022] Open
Abstract
Protein aggregation and subsequent accumulation of insoluble amyloid fibrils with cross-β structure is an intrinsic characteristic of amyloid diseases, i.e., amyloidoses. Amyloid formation involves a series of on-pathway and off-pathway protein aggregation events, leading to mature insoluble fibrils that eventually accumulate in multiple tissues. In this cascade of events, soluble oligomeric species are formed, which are among the most cytotoxic molecular entities along the amyloid cascade. The direct or indirect action of these amyloid soluble oligomers and amyloid protofibrils and fibrils in several tissues and organs lead to cell death in some cases and organ disfunction in general. There are dozens of different proteins and peptides causing multiple amyloid pathologies, chief among them Alzheimer's, Parkinson's, Huntington's, and several other neurodegenerative diseases. Amyloid fibril disassembly is among the disease-modifying therapeutic strategies being pursued to overcome amyloid pathologies. The clearance of preformed amyloids and consequently the arresting of the progression of organ deterioration may increase patient survival and quality of life. In this review, we compiled from the literature many examples of chemical and biochemical agents able to disaggregate preformed amyloids, which have been classified as molecular chaperones, chemical chaperones, and pharmacological chaperones. We focused on their mode of action, chemical structure, interactions with the fibrillar structures, morphology and toxicity of the disaggregation products, and the potential use of disaggregation agents as a treatment option in amyloidosis.
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Affiliation(s)
| | - Rui M. M. Brito
- Chemistry Department and Coimbra Chemistry Centre—Institute of Molecular Sciences (CQC-IMS), University of Coimbra, 3004-535 Coimbra, Portugal
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Min JO, Strohäker T, Jeong BC, Zweckstetter M, Lee SJ. Chicago sky blue 6B inhibits α-synuclein aggregation and propagation. Mol Brain 2022; 15:27. [PMID: 35346306 PMCID: PMC8962151 DOI: 10.1186/s13041-022-00913-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/17/2022] [Indexed: 11/10/2022] Open
Abstract
Abnormal deposition of α-synuclein aggregates in Lewy bodies and Lewy neurites is the hallmark lesion in Parkinson’s disease (PD). These aggregates, thought to be the culprit of disease pathogenesis, spread throughout the brain as the disease progresses. Agents that inhibit α-synuclein aggregation and/or spread of aggregates would thus be candidate disease-modifying drugs. Here, we found that Chicago sky blue 6B (CSB) may be such a drug, showing that it inhibits α-synuclein aggregation and cell-to-cell propagation in both in vitro and in vivo models of synucleinopathy. CSB inhibited the fibrillation of α-synuclein in a concentration-dependent manner through direct binding to the N-terminus of α-synuclein. Furthermore, both seeded polymerization and cell-to-cell propagation of α-synuclein were inhibited by CSB treatment. Notably, CSB alleviated behavioral deficits and neuropathological features, such as phospho-α-synuclein and astrogliosis, in A53T α-synuclein transgenic mice. These results indicate that CSB directly binds α-synuclein and inhibits its aggregation, thereby blocking α-synuclein cell-to-cell propagation.
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Affiliation(s)
- Joo-Ok Min
- Department of Biomedical Sciences, Neuroscience Research Institute, Seoul National University College of Medicine, 103 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea
| | - Timo Strohäker
- German Center for Neurodegenerative Diseases (DZNE), Von-Siebold-Str. 3a, 37075, Göttingen, Germany
| | - Byung-Chul Jeong
- Department of Biomedical Sciences, Neuroscience Research Institute, Seoul National University College of Medicine, 103 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea.,Nutritional Sciences and Toxicology Department, University of California Berkeley, Berkeley, USA
| | - Markus Zweckstetter
- German Center for Neurodegenerative Diseases (DZNE), Von-Siebold-Str. 3a, 37075, Göttingen, Germany.,Department for NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Faßberg 11, 37077, Göttingen, Germany
| | - Seung-Jae Lee
- Department of Biomedical Sciences, Neuroscience Research Institute, Seoul National University College of Medicine, 103 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea.
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Kostelanska M, Holada K. Prion Strains Differ in Susceptibility to Photodynamic Oxidation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030611. [PMID: 35163872 PMCID: PMC8840242 DOI: 10.3390/molecules27030611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/07/2022] [Accepted: 01/14/2022] [Indexed: 11/16/2022]
Abstract
Prion disorders, or transmissible spongiform encephalophaties (TSE), are fatal neurodegenerative diseases affecting mammals. Prion-infectious particles comprise of misfolded pathological prion proteins (PrPTSE). Different TSEs are associated with distinct PrPTSE folds called prion strains. The high resistance of prions to conventional sterilization increases the risk of prion transmission in medical, veterinary and food industry practices. Recently, we have demonstrated the ability of disulfonated hydroxyaluminum phthalocyanine to photodynamically inactivate mouse RML prions by generated singlet oxygen. Herein, we studied the efficiency of three phthalocyanine derivatives in photodynamic treatment of seven mouse adapted prion strains originating from sheep, human, and cow species. We report the different susceptibilities of the strains to photodynamic oxidative elimination of PrPTSE epitopes: RML, A139, Fu-1 > mBSE, mvCJD > ME7, 22L. The efficiency of the phthalocyanine derivatives in the epitope elimination also differed (AlPcOH(SO3)2 > ZnPc(SO3)1-3 > SiPc(OH)2(SO3)1-3) and was not correlated to the yields of generated singlet oxygen. Our data suggest that the structural properties of both the phthalocyanine and the PrPTSE strain may affect the effectiveness of the photodynamic prion inactivation. Our finding provides a new option for the discrimination of prion strains and highlights the necessity of utilizing range of prion strains when validating the photodynamic prion decontamination procedures.
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Hommen F, Bilican S, Vilchez D. Protein clearance strategies for disease intervention. J Neural Transm (Vienna) 2021; 129:141-172. [PMID: 34689261 PMCID: PMC8541819 DOI: 10.1007/s00702-021-02431-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 10/10/2021] [Indexed: 02/06/2023]
Abstract
Protein homeostasis, or proteostasis, is essential for cell function and viability. Unwanted, damaged, misfolded and aggregated proteins are degraded by the ubiquitin–proteasome system (UPS) and the autophagy-lysosome pathway. Growing evidence indicates that alterations in these major proteolytic mechanisms lead to a demise in proteostasis, contributing to the onset and development of distinct diseases. Indeed, dysregulation of the UPS or autophagy is linked to several neurodegenerative, infectious and inflammatory disorders as well as cancer. Thus, modulation of protein clearance pathways is a promising approach for therapeutics. In this review, we discuss recent findings and open questions on how targeting proteolytic mechanisms could be applied for disease intervention.
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Affiliation(s)
- Franziska Hommen
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Joseph Stelzmann Strasse 26, 50931, Cologne, Germany
| | - Saygın Bilican
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Joseph Stelzmann Strasse 26, 50931, Cologne, Germany
| | - David Vilchez
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Joseph Stelzmann Strasse 26, 50931, Cologne, Germany. .,Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany. .,Faculty of Medicine, University Hospital Cologne, Cologne, Germany.
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9
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Synthesis, characterization, thermal and photophysical properties of novel strontium (II) phthalocyanine. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01094-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Bisi N, Feni L, Peqini K, Pérez-Peña H, Ongeri S, Pieraccini S, Pellegrino S. α-Synuclein: An All-Inclusive Trip Around its Structure, Influencing Factors and Applied Techniques. Front Chem 2021; 9:666585. [PMID: 34307295 PMCID: PMC8292672 DOI: 10.3389/fchem.2021.666585] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 06/02/2021] [Indexed: 12/15/2022] Open
Abstract
Alpha-synuclein (αSyn) is a highly expressed and conserved protein, typically found in the presynaptic terminals of neurons. The misfolding and aggregation of αSyn into amyloid fibrils is a pathogenic hallmark of several neurodegenerative diseases called synucleinopathies, such as Parkinson’s disease. Since αSyn is an Intrinsically Disordered Protein, the characterization of its structure remains very challenging. Moreover, the mechanisms by which the structural conversion of monomeric αSyn into oligomers and finally into fibrils takes place is still far to be completely understood. Over the years, various studies have provided insights into the possible pathways that αSyn could follow to misfold and acquire oligomeric and fibrillar forms. In addition, it has been observed that αSyn structure can be influenced by different parameters, such as mutations in its sequence, the biological environment (e.g., lipids, endogenous small molecules and proteins), the interaction with exogenous compounds (e.g., drugs, diet components, heavy metals). Herein, we review the structural features of αSyn (wild-type and disease-mutated) that have been elucidated up to present by both experimental and computational techniques in different environmental and biological conditions. We believe that this gathering of current knowledge will further facilitate studies on αSyn, helping the planning of future experiments on the interactions of this protein with targeting molecules especially taking into consideration the environmental conditions.
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Affiliation(s)
- Nicolò Bisi
- BioCIS, CNRS, Université Paris Saclay, Châtenay-Malabry Cedex, France
| | - Lucia Feni
- DISFARM-Dipartimento di Scienze Farmaceutiche, Sezione Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Milan, Italy
| | - Kaliroi Peqini
- DISFARM-Dipartimento di Scienze Farmaceutiche, Sezione Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Milan, Italy
| | - Helena Pérez-Peña
- Dipartimento di Chimica, Università degli Studi di Milano, Milan, Italy
| | - Sandrine Ongeri
- BioCIS, CNRS, Université Paris Saclay, Châtenay-Malabry Cedex, France
| | | | - Sara Pellegrino
- DISFARM-Dipartimento di Scienze Farmaceutiche, Sezione Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Milan, Italy
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Chernii S, Gerasymchuk Y, Losytskyy M, Szymański D, Tretyakova I, Łukowiak A, Pekhnyo V, Yarmoluk S, Chernii V, Kovalska V. Modification of insulin amyloid aggregation by Zr phthalocyanines functionalized with dehydroacetic acid derivatives. PLoS One 2021; 16:e0243904. [PMID: 33411832 PMCID: PMC7790233 DOI: 10.1371/journal.pone.0243904] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/01/2020] [Indexed: 02/06/2023] Open
Abstract
Amyloid fibrils are widely studied both as target in conformational disorders and as basis for the development of protein-based functional materials. The three Zr phthalocyanines bearing dehydroacetic acid residue (PcZr(L1)2) and its condensed derivatives (PcZr(L2)2 and PcZr(L3)2) as out-of-plane ligands were synthesized and their influence on insulin fibril formation was studied by amyloid-sensitive fluorescent dye based assay, scanning electron microscopy, fluorescent and absorption spectroscopies. The presence of Zr phthalocyanines was shown to modify the fibril formation. The morphology of fibrils formed in the presence of the Zr phthalocyanines differs from that of free insulin and depends on the structure of out-of-plane ligands. It is shown that free insulin mostly forms fibril clusters with the length of about 0.3-2.1 μm. The presence of Zr phthalocyanines leads to the formation of individual 0.4-2.8 μm-long fibrils with a reduced tendency to lateral aggregation and cluster formation (PcZr(L1)2), shorter 0.2-1.5 μm-long fibrils with the tendency to lateral aggregation without clusters (PcZr(L2)2), and fibril-like 0.2-1.0 μm-long structures (PcZr(L3)2). The strongest influence on fibrils morphology made by PcZr(L3)2 could be explained by the additional stacking of phenyl moiety of the ligand with aromatic amino acids in protein. The evidences of binding of studied Zr phthalocyanines to mature fibrils were shown by absorption spectroscopy (for PcZr(L1)2 and PcZr(L2)2) and fluorescent spectroscopy (for PcZr(L3)2). These complexes could be potentially used as external tools allowing the development of functional materials on protein fibrils basis.
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Affiliation(s)
- Svitlana Chernii
- Institute of Molecular Biology and Genetics, NASU, Kyiv, Ukraine
| | - Yuriy Gerasymchuk
- Institute of Low Temperature and Structure Research, PAS, Wroclaw, Poland
| | | | - Damian Szymański
- Institute of Low Temperature and Structure Research, PAS, Wroclaw, Poland
| | - Iryna Tretyakova
- Institute of General and Inorganic Chemistry, NASU, Kyiv, Ukraine
| | - Anna Łukowiak
- Institute of Low Temperature and Structure Research, PAS, Wroclaw, Poland
| | - Vasyl Pekhnyo
- Institute of General and Inorganic Chemistry, NASU, Kyiv, Ukraine
| | - Sergiy Yarmoluk
- Institute of Molecular Biology and Genetics, NASU, Kyiv, Ukraine
| | - Viktor Chernii
- Institute of General and Inorganic Chemistry, NASU, Kyiv, Ukraine
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Xu W, Gao C, Sun X, Tai WCS, Lung HL, Law GL. Design, synthesis and comparison of water-soluble phthalocyanine/porphyrin analogues and their inhibition effects on Aβ 42 fibrillization. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00237f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of ZnPorp and ZnPc conjugates were synthesized and compared by their inhibitory effects on Aβ42 fibrillization. We show that ZnPc conjugates designed with a good hydrophilic–hydrophobic balance are deemed as better inhibitors.
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Affiliation(s)
- Weiyuan Xu
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- PR China
| | - Chao Gao
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- PR China
| | - Xinyang Sun
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- PR China
| | - William Chi-Shing Tai
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- PR China
| | - Hong Lok Lung
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon
- P.R China
| | - Ga-Lai Law
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- PR China
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Palomino-Hernandez O, Buratti FA, Sacco PS, Rossetti G, Carloni P, Fernandez CO. Role of Tyr-39 for the Structural Features of α-Synuclein and for the Interaction with a Strong Modulator of Its Amyloid Assembly. Int J Mol Sci 2020; 21:ijms21145061. [PMID: 32709107 PMCID: PMC7404028 DOI: 10.3390/ijms21145061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/02/2020] [Accepted: 07/13/2020] [Indexed: 12/03/2022] Open
Abstract
Recent studies suggest that Tyr-39 might play a critical role for both the normal function and the pathological dysfunction of α-synuclein (αS), an intrinsically disordered protein involved in Parkinson’s disease. We perform here a comparative analysis between the structural features of human αS and its Y39A, Y39F, and Y39L variants. By the combined application of site-directed mutagenesis, biophysical techniques, and enhanced sampling molecular simulations, we show that removing aromatic functionality at position 39 of monomeric αS leads to protein variants populating more compact conformations, conserving its disordered nature and secondary structure propensities. Contrasting with the subtle changes induced by mutations on the protein structure, removing aromaticity at position 39 impacts strongly on the interaction of αS with the potent amyloid inhibitor phthalocyanine tetrasulfonate (PcTS). Our findings further support the role of Tyr-39 in forming essential inter and intramolecular contacts that might have important repercussions for the function and the dysfunction of αS.
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Affiliation(s)
- Oscar Palomino-Hernandez
- Computational Biomedicine, Institute for Neuroscience and Medicine (INM-9) and Institute for Advanced Simulations (IAS-5), Forschungszentrum Jülich, 52425 Jülich, Germany; (O.P.-H.); (G.R.)
- Faculty of Mathematics, Computer Science and Natural Sciences, RWTH Aachen, 52425 Aachen, Germany
- Computation-Based Science and Technology Research Center, The Cyprus Institute, 2121 Nicosia, Cyprus
- Institute of Life Science, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| | - Fiamma A. Buratti
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, S2002LRK Rosario, Argentina; (F.A.B.); (P.S.S.)
| | - Pamela S. Sacco
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, S2002LRK Rosario, Argentina; (F.A.B.); (P.S.S.)
| | - Giulia Rossetti
- Computational Biomedicine, Institute for Neuroscience and Medicine (INM-9) and Institute for Advanced Simulations (IAS-5), Forschungszentrum Jülich, 52425 Jülich, Germany; (O.P.-H.); (G.R.)
- Department of Oncology, Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation University Hospital Aachen, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
- Jülich Supercomputing Center (JSC), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Paolo Carloni
- Computational Biomedicine, Institute for Neuroscience and Medicine (INM-9) and Institute for Advanced Simulations (IAS-5), Forschungszentrum Jülich, 52425 Jülich, Germany; (O.P.-H.); (G.R.)
- Faculty of Mathematics, Computer Science and Natural Sciences, RWTH Aachen, 52425 Aachen, Germany
- Institute for Neuroscience and Medicine (INM-11) Forschungszentrum Jülich, 52425 Jülich, Germany
- Correspondence: (P.C.); (C.O.F.); Tel.: +54-341-4237868 (ext. 752) (C.O.F)
| | - Claudio O. Fernandez
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, S2002LRK Rosario, Argentina; (F.A.B.); (P.S.S.)
- Department of NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, D-37077 Göttingen, Germany
- Correspondence: (P.C.); (C.O.F.); Tel.: +54-341-4237868 (ext. 752) (C.O.F)
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Hu S, Xian Y, Fan Y, Mak S, Wang J, Tang J, Pang Y, Pi R, Tsim KW, Liu F, Lin Z, Han Y. Significant combination of Aβ aggregation inhibitory and neuroprotective properties in silico, in vitro and in vivo by bis(propyl)-cognitin, a multifunctional anti-Alzheimer’s agent. Eur J Pharmacol 2020; 876:173065. [DOI: 10.1016/j.ejphar.2020.173065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 03/08/2020] [Accepted: 03/10/2020] [Indexed: 01/06/2023]
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15
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Advances in the development of imaging probes and aggregation inhibitors for alpha-synuclein. Acta Pharmacol Sin 2020; 41:483-498. [PMID: 31586134 PMCID: PMC7470848 DOI: 10.1038/s41401-019-0304-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 08/29/2019] [Indexed: 12/20/2022] Open
Abstract
Abnormal protein aggregation has been linked to many neurodegenerative diseases, including Parkinson’s disease (PD). The main pathological hallmark of PD is the formation of Lewy bodies (LBs) and Lewy neurites, both of which contain the presynaptic protein alpha-synuclein (α-syn). Under normal conditions, native α-syn exists in a soluble unfolded state but undergoes misfolding and aggregation into toxic aggregates under pathological conditions. Toxic α-syn species, especially oligomers, can cause oxidative stress, membrane penetration, synaptic and mitochondrial dysfunction, as well as other damage, leading to neuronal death and eventually neurodegeneration. Early diagnosis and treatments targeting PD pathogenesis are urgently needed. Given its critical role in PD, α-syn is an attractive target for the development of both diagnostic tools and effective therapeutics. This review summarizes the progress toward discovering imaging probes and aggregation inhibitors for α-syn. Relevant strategies and techniques in the discovery of α-syn-targeted drugs are also discussed.
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Chernii S, Losytskyy M, Kelm A, Gorski A, Tretyakova I, Yarmoluk S, Chernii V, Kovalska V. Study of tetraphenylporphyrins as modifiers of insulin amyloid aggregation. J Mol Recognit 2019; 33:e2811. [PMID: 31497916 DOI: 10.1002/jmr.2811] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 08/09/2019] [Accepted: 08/16/2019] [Indexed: 11/07/2022]
Abstract
Amyloid fibrils are rigid β-pleated protein aggregates that are connected with series of harmful diseases and at the same time are promising as base for novel nanomaterials. Thus, design of compounds able to inhibit or redirect those aggregates formation is important both for the biomedical aims and for nanotechnology applications. Here, we studied the effect of tetraphenylporphyrins (metal free, their Cu and Pd complexes, and those functionalized by carboxy and amino groups on periphery) on insulin amyloid self-assembling. The strongest impact on insulin aggregation was demonstrated by a metal-free porphyrin bearing four carboxy groups. This compound strongly suppresses insulin aggregation (about 88% reduction in amyloid-sensitive probe emission) inducing formation of fibrils with the length close to this of free insulin (1.7 ± 0.6 μm as compared with 1.4 ± 0.4 μm, respectively) with an essentially reduced tendency to lateral aggregation. Contrarily, the presence of tetraphenylporphyrin containing four amino groups only slightly affects fibrils' morphology and makes weaker impact on insulin aggregation yield (about 44% reduction). This is explained by the ability of aromatic carboxy groups of 5,10,15,20-(tetra-4-carboxyphenyl)porphyrin to interact with complementary protein-binding groups and thus stabilize the supramolecular complex. For 5,10,15,20-(tetra-4-aminophenyl)porphyrin, full protonation takes place in acidic medium of protein aggregation reaction; this results in the high positive charge of TPPN4 (equal or close to +6) and hence higher contribution of coulombic repulsion to interaction of TPPN4 with insulin. One more possible mechanism of the lower inhibition effect of TPPN4 as compared with TPPC4 could be the more restricted possibility of the former as compared with the latter to form H bonds with insulin groups. It was also shown that metal-free, Pd-containing, and Cu-containing tetraphenylporphyrins without peripheral substituents make almost the same impact on the protein self-assembling. We suppose this to be due to coordination saturation of these metal atoms.
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Affiliation(s)
- Svitlana Chernii
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Mykhaylo Losytskyy
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Anna Kelm
- Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | - Alexandr Gorski
- Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | - Iryna Tretyakova
- V.I. Vernadsky Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Sergiy Yarmoluk
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Victor Chernii
- V.I. Vernadsky Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Vladyslava Kovalska
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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17
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González N, Gentile I, Garro HA, Delgado-Ocaña S, Ramunno CF, Buratti FA, Griesinger C, Fernández CO. Metal coordination and peripheral substitution modulate the activity of cyclic tetrapyrroles on αS aggregation: a structural and cell-based study. J Biol Inorg Chem 2019; 24:1269-1278. [PMID: 31486955 DOI: 10.1007/s00775-019-01711-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 07/28/2019] [Indexed: 12/11/2022]
Abstract
The discovery of aggregation inhibitors and the elucidation of their mechanism of action are key in the quest to mitigate the toxic consequences of amyloid formation. We have previously characterized the antiamyloidogenic mechanism of action of sodium phtalocyanine tetrasulfonate ([Na4(H2PcTS)]) on α-Synuclein (αS), demonstrating that specific aromatic interactions are fundamental for the inhibition of amyloid assembly. Here we studied the influence that metal preferential affinity and peripheral substituents may have on the activity of tetrapyrrolic compounds on αS aggregation. For the first time, our laboratory has extended the studies in the field of the bioinorganic chemistry and biophysics to cellular biology, using a well-established cell-based model to study αS aggregation. The interaction scenario described in our work revealed that both N- and C-terminal regions of αS represent binding interfaces for the studied compounds, a behavior that is mainly driven by the presence of negatively or positively charged substituents located at the periphery of the macrocycle. Binding modes of the tetrapyrrole ligands to αS are determined by the planarity and hydrophobicity of the aromatic ring system in the tetrapyrrolic molecule and/or the preferential affinity of the metal ion conjugated at the center of the macrocyclic ring. The different capability of phthalocyanines and meso-tetra (N-methyl-4-pyridyl) porphine tetrachloride ([H2PrTPCl4]) to modulate αS aggregation in vitro was reproduced in cell-based models of αS aggregation, demonstrating unequivocally that the modulation exerted by these compounds on amyloid assembly is a direct consequence of their interaction with the target protein.
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Affiliation(s)
- Nazareno González
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK, Rosario, Argentina
| | - Iñaki Gentile
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK, Rosario, Argentina
| | - Hugo A Garro
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK, Rosario, Argentina.,Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - Susana Delgado-Ocaña
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK, Rosario, Argentina
| | - Carla F Ramunno
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK, Rosario, Argentina
| | - Fiamma A Buratti
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK, Rosario, Argentina
| | - Christian Griesinger
- Department of NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany
| | - Claudio O Fernández
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK, Rosario, Argentina. .,Department of NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany.
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18
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Dong C, Garen CR, Mercier P, Petersen NO, Woodside MT. Characterizing the inhibition of α-synuclein oligomerization by a pharmacological chaperone that prevents prion formation by the protein PrP. Protein Sci 2019; 28:1690-1702. [PMID: 31306510 DOI: 10.1002/pro.3684] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 07/08/2019] [Accepted: 07/08/2019] [Indexed: 12/17/2022]
Abstract
Aggregation of the disordered protein α-synuclein into amyloid fibrils is a central feature of synucleinopathies, neurodegenerative disorders that include Parkinson's disease. Small, pre-fibrillar oligomers of misfolded α-synuclein are thought to be the key toxic entities, and α-synuclein misfolding can propagate in a prion-like way. We explored whether a compound with anti-prion activity that can bind to unfolded parts of the protein PrP, the cyclic tetrapyrrole Fe-TMPyP, was also active against α-synuclein aggregation. Observing the initial stages of aggregation via fluorescence cross-correlation spectroscopy, we found that Fe-TMPyP inhibited small oligomer formation in a dose-dependent manner. Fe-TMPyP also inhibited the formation of mature amyloid fibrils in vitro, as detected by thioflavin T fluorescence. Isothermal titration calorimetry indicated Fe-TMPyP bound to monomeric α-synuclein with a stoichiometry of 2, and two-dimensional heteronuclear single quantum coherence NMR spectra revealed significant interactions between Fe-TMPyP and the C-terminus of the protein. These results suggest commonalities among aggregation mechanisms for α-synuclein and the prion protein may exist that can be exploited as therapeutic targets.
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Affiliation(s)
- Chunhua Dong
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada
| | - Craig R Garen
- Department of Physics, University of Alberta, Edmonton, Alberta, Canada
| | - Pascal Mercier
- National High Field Nuclear Magnetic Resonance Centre (NANUC), Edmonton, Alberta, Canada
| | - Nils O Petersen
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
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19
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Valiente-Gabioud AA, Riedel D, Outeiro TF, Menacho-Márquez MA, Griesinger C, Fernández CO. Binding Modes of Phthalocyanines to Amyloid β Peptide and Their Effects on Amyloid Fibril Formation. Biophys J 2019. [PMID: 29539391 DOI: 10.1016/j.bpj.2018.01.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The inherent tendency of proteins to convert from their native states into amyloid aggregates is associated with a range of human disorders, including Alzheimer's and Parkinson's diseases. In that sense, the use of small molecules as probes for the structural and toxic mechanism related to amyloid aggregation has become an active area of research. Compared with other compounds, the structural and molecular basis behind the inhibitory interaction of phthalocyanine tetrasulfonate (PcTS) with proteins such as αS and tau has been well established, contributing to a better understanding of the amyloid aggregation process in these proteins. We present here the structural characterization of the binding of PcTS and its Cu(II) and Zn(II)-loaded forms to the amyloid β-peptide (Aβ) and the impact of these interactions on the peptide amyloid fibril assembly. Elucidation of the PcTS binding modes to Aβ40 revealed the involvement of specific aromatic and hydrophobic interactions in the formation of the Aβ40-PcTS complex, ascribed to a binding mode in which the planarity and hydrophobicity of the aromatic ring system in the phthalocyanine act as main structural determinants for the interaction. Our results demonstrated that formation of the Aβ40-PcTS complex does not interfere with the progression of the peptide toward the formation of amyloid fibrils. On the other hand, conjugation of Zn(II) but not Cu(II) at the center of the PcTS macrocyclic ring modified substantially the binding profile of this phthalocyanine to Aβ40 and became crucial to reverse the effects of metal-free PcTS on the fibril assembly of the peptide. Overall, our results provide a firm basis to understand the structural rules directing phthalocyanine-protein interactions and their implications on the amyloid fibril assembly of the target proteins; in particular, our results contradict the hypothesis that PcTS might have similar mechanisms of action in slowing the formation of a variety of pathological aggregates.
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Affiliation(s)
- Ariel A Valiente-Gabioud
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, Rosario, Argentina
| | - Dietmar Riedel
- Facility for Transmission Electron Microscopy, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
| | - Tiago F Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration; Center for Nanoscale Microscopy and Molecular Physiology of the Brain, University Medical Center Göttingen, University of Göttingen, Göttingen, Germany; Max Planck Institute for Experimental Medicine, Göttingen, Germany
| | - Mauricio A Menacho-Márquez
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, Rosario, Argentina
| | - Christian Griesinger
- Center for Nanoscale Microscopy and Molecular Physiology of the Brain, University Medical Center Göttingen, University of Göttingen, Göttingen, Germany; Department of NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
| | - Claudio O Fernández
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, Rosario, Argentina; Department of NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany.
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20
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Oliveri V. Toward the discovery and development of effective modulators of α-synuclein amyloid aggregation. Eur J Med Chem 2019; 167:10-36. [PMID: 30743095 DOI: 10.1016/j.ejmech.2019.01.045] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 01/21/2019] [Accepted: 01/21/2019] [Indexed: 12/17/2022]
Abstract
A host of human diseases, including Parkinson's disease and Dementia with Lewy bodies, are suspected to be directly linked to protein aggregation. Amyloid protein aggregates and oligomeric intermediates of α-synuclein are observed in synucleinopathies and considered to be mediators of cellular toxicity. Hence, α-synuclein has seen as one of the leading and most compelling targets and is receiving a great deal of attention from researchers. Nevertheless, there is no neuroprotective approach directed toward Parkinson's disease or other synucleinopathies so far. In this review, we summarize the available data concerning inhibitors of α-synuclein aggregation and their advancing towards clinical use. The compounds are grouped according to their chemical structures, providing respective insights into their mechanism of action, pharmacology, and pharmacokinetics. Overall, shared structure-activity elements are emerging, as well as specific binding modes related to the ability of the modulators to establish hydrophobic and hydrogen bonds interactions with the protein. Some molecules with encouraging in vivo data support the possibility of translation to the clinic.
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Affiliation(s)
- Valentina Oliveri
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, viale A. Doria 6, 95125, Catania, Italy.
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21
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Wong RC, Lo PC, Ng DK. Stimuli responsive phthalocyanine-based fluorescent probes and photosensitizers. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2017.10.006] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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Mahalakshmi R. Aromatic interactions in β-hairpin scaffold stability: A historical perspective. Arch Biochem Biophys 2018; 661:39-49. [PMID: 30395808 DOI: 10.1016/j.abb.2018.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 01/21/2023]
Abstract
Non-covalent interactions between naturally occurring aromatic residues have been widely exploited as scaffold stabilizing agents in de novo designed peptides and in Nature - inspired structures. Our understanding of the factors driving aromatic interactions and their observed interaction geometries have advanced remarkably with improvements in conventional structural studies, availability of novel molecular methods and in silico studies, which have together provided atomistic information on aromatic interactions and interaction strengths. This review attempts to recapitulate the early advances in our understanding of aromatic interactions as stabilizing agents of peptide β-hairpins.
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Affiliation(s)
- Radhakrishnan Mahalakshmi
- Molecular Biophysics Laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal, 462066, India.
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23
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Kataeva O, Metlushka K, Ivshin K, Kiiamov A, Alfonsov V, Khrizanforov M, Budnikova Y, Sinyashin O, Krupskaya Y, Kataev V, Büchner B, Knupfer M. Electron Transfer and Unusual Chemical Transformations of F4-TCNQ in a Reaction with Mn-Phthalocyanine. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800641] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Olga Kataeva
- A. E. Arbuzov Institute of Organic and Physical Chemistry; FRC Kazan Scientific Center; Russian Academy of Sciences; Arbuzov str. 8 420088 Kazan Russia
| | - Kirill Metlushka
- A. E. Arbuzov Institute of Organic and Physical Chemistry; FRC Kazan Scientific Center; Russian Academy of Sciences; Arbuzov str. 8 420088 Kazan Russia
- A. M. Butlerov Chemistry Institute of the Kazan Federal University; Kremlevskaya str. 18 420008 Kazan Russia
| | - Kamil Ivshin
- A. E. Arbuzov Institute of Organic and Physical Chemistry; FRC Kazan Scientific Center; Russian Academy of Sciences; Arbuzov str. 8 420088 Kazan Russia
- A. M. Butlerov Chemistry Institute of the Kazan Federal University; Kremlevskaya str. 18 420008 Kazan Russia
| | - Airat Kiiamov
- Institute of Physics; Kazan Federal University; Kremlevskaya str. 18 420008 Kazan Russia
| | - Vladimir Alfonsov
- A. E. Arbuzov Institute of Organic and Physical Chemistry; FRC Kazan Scientific Center; Russian Academy of Sciences; Arbuzov str. 8 420088 Kazan Russia
- A. M. Butlerov Chemistry Institute of the Kazan Federal University; Kremlevskaya str. 18 420008 Kazan Russia
| | - Mikhail Khrizanforov
- A. E. Arbuzov Institute of Organic and Physical Chemistry; FRC Kazan Scientific Center; Russian Academy of Sciences; Arbuzov str. 8 420088 Kazan Russia
| | - Yulia Budnikova
- A. E. Arbuzov Institute of Organic and Physical Chemistry; FRC Kazan Scientific Center; Russian Academy of Sciences; Arbuzov str. 8 420088 Kazan Russia
| | - Oleg Sinyashin
- A. E. Arbuzov Institute of Organic and Physical Chemistry; FRC Kazan Scientific Center; Russian Academy of Sciences; Arbuzov str. 8 420088 Kazan Russia
| | - Yulia Krupskaya
- Institute for Solid State and Materials Research IFW Dresden; Helmholtz str. 20 01069 Dresden Germany
| | - Vladislav Kataev
- Institute for Solid State and Materials Research IFW Dresden; Helmholtz str. 20 01069 Dresden Germany
| | - Bernd Büchner
- Institute for Solid State and Materials Research IFW Dresden; Helmholtz str. 20 01069 Dresden Germany
- Institut für Feskörper- und Materialphysik; Technische Universität Dresden; 01062 Dresden Germany
| | - Martin Knupfer
- Institute for Solid State and Materials Research IFW Dresden; Helmholtz str. 20 01069 Dresden Germany
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24
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da Silva RN, Cunha Â, Tomé AC. Phthalocyanine–sulfonamide conjugates: Synthesis and photodynamic inactivation of Gram-negative and Gram-positive bacteria. Eur J Med Chem 2018; 154:60-67. [DOI: 10.1016/j.ejmech.2018.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/11/2018] [Accepted: 05/07/2018] [Indexed: 12/17/2022]
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25
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Fernández-Ariza J, Urbani M, Rodríguez-Morgade MS, Torres T. Panchromatic Photosensitizers Based on Push-Pull, Unsymmetrically Substituted Porphyrazines. Chemistry 2017; 24:2618-2625. [PMID: 29205575 DOI: 10.1002/chem.201705242] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Indexed: 01/01/2023]
Abstract
A series of five push-pull porphyrazines of A3 B type, in which unit B is an isoindole 4-carboxylic acid, has been prepared. The units A have been endowed with thioether, amine, ether and alkyl functions, either directly attached to the β-position of the pyrrolic units, or connected to the porphyrazine core through p-substituted phenyl groups. Attaching the electron-donor functions to the porphyrazine periphery produces strong perturbations in the electronic and redox properties of the dyes. Their HOMO and LUMO energies, estimated from the optical and redox data, as well as with DFT calculations, raise upon functionalization with amines, while the corresponding frontier orbital energetic levels lower upon functionalization with thioethers, p-methoxyphenyl or p-tert-butylphenyl groups. The effective interaction of peripheral substitution with the macrocycle produces chromophores with panchromatic absorption between 300 and 750-850 nm.
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Affiliation(s)
- Javier Fernández-Ariza
- Departamento de Química Orgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | - Maxence Urbani
- Departamento de Química Orgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain.,Instituto Madrileño de Estudios Avanzados (IMDEA)-Nanociencia, c/ Faraday, 9, Cantoblanco, 28049, Madrid, Spain
| | - M Salomé Rodríguez-Morgade
- Departamento de Química Orgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | - Tomás Torres
- Departamento de Química Orgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain.,Instituto Madrileño de Estudios Avanzados (IMDEA)-Nanociencia, c/ Faraday, 9, Cantoblanco, 28049, Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
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26
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Protein aggregation: From background to inhibition strategies. Int J Biol Macromol 2017; 103:208-219. [DOI: 10.1016/j.ijbiomac.2017.05.048] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 05/11/2017] [Accepted: 05/12/2017] [Indexed: 01/01/2023]
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Kovalska V, Chernii S, Losytskyy M, Ostapko J, Tretyakova I, Gorski A, Chernii V, Yarmoluk S. Activity of Zn and Mg phthalocyanines and porphyrazines in amyloid aggregation of insulin. J Mol Recognit 2017; 31. [PMID: 28856782 PMCID: PMC6175167 DOI: 10.1002/jmr.2660] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/04/2017] [Accepted: 08/07/2017] [Indexed: 11/22/2022]
Abstract
Formation of the deposits of protein aggregates—amyloid fibrils in an intracellular and intercellular space—is common to a large group of amyloid‐associated disorders. Among the approaches to develop of therapy of such disorders is the use of agents preventing protein fibrillization. Polyaromatic complexes—porphyrins and phthalocyanines—are known as compounds possessing anti‐fibrillogenic activity. Here, we explore the impact of related macrocyclic complexes—phthalocyanines (Pc) and octaphenyl porphyrazines (Pz) of Mg and Zn—on aggregation of amyloidogenic protein insulin. Pz complexes are firstly reported as compounds able to affect protein fibrillization. The effect of Pc and Pz complexes on the kinetics and intensity of insulin aggregation was studied by the fluorescent assay using amyloid sensitive cyanine dye. This has shown the impact of metal ion on the anti‐fibrillogenic properties of macrocyclic complexes—the effect on the fibrillization kinetics of Mg‐containing compounds is much more pronounced comparing to that of Zn analogues. Scanning electron microscopy experiments have demonstrated that filamentous fibrils are the main product of aggregation both for free insulin and in the presence of macrocyclic complexes. However, those fibrils are distinct by their length and proneness to lateral aggregation. The Pc complexes cause the increase in variation of fibrils length 0.9 to 2.7 nm in opposite to 1.4 to 2.0 nm for free insulin, whereas Pz complexes cause certain shortening of the fibrils to 0.8 to 1.6 nm. The averaged size of the fibrils population was estimated by dynamic light scattering; it correlates with the size of single fibrils detected by scanning electron microscopy.
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Affiliation(s)
- V Kovalska
- Institute of Molecular Biology and Genetics NASU, Kyiv, Ukraine
| | - S Chernii
- Institute of Molecular Biology and Genetics NASU, Kyiv, Ukraine.,V.I. Vernadskii Institute of General and Inorganic Chemistry NASU, Kyiv, Ukraine
| | - M Losytskyy
- Institute of Molecular Biology and Genetics NASU, Kyiv, Ukraine.,V.I. Vernadskii Institute of General and Inorganic Chemistry NASU, Kyiv, Ukraine
| | - J Ostapko
- Institute of Physical Chemistry PAS, Warsaw, Poland
| | - I Tretyakova
- V.I. Vernadskii Institute of General and Inorganic Chemistry NASU, Kyiv, Ukraine
| | - A Gorski
- Institute of Physical Chemistry PAS, Warsaw, Poland
| | - V Chernii
- V.I. Vernadskii Institute of General and Inorganic Chemistry NASU, Kyiv, Ukraine
| | - S Yarmoluk
- Institute of Molecular Biology and Genetics NASU, Kyiv, Ukraine
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Kovalska V, Chernii S, Cherepanov V, Losytskyy M, Chernii V, Varzatskii O, Naumovets A, Yarmoluk S. The impact of binding of macrocyclic metal complexes on amyloid fibrillization of insulin and lysozyme. J Mol Recognit 2017; 30. [DOI: 10.1002/jmr.2622] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 02/01/2017] [Accepted: 02/10/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Vladyslava Kovalska
- Institute of Molecular Biology and Genetics; National Academy of Sciences of Ukraine; Kyiv Ukraine
| | - Svitlana Chernii
- Institute of Molecular Biology and Genetics; National Academy of Sciences of Ukraine; Kyiv Ukraine
| | | | - Mykhaylo Losytskyy
- Institute of Molecular Biology and Genetics; National Academy of Sciences of Ukraine; Kyiv Ukraine
| | - Victor Chernii
- V.I. Vernadsky Institute of General and Inorganic Chemistry; National Academy of Sciences of Ukraine; Kyiv Ukraine
| | - Oleg Varzatskii
- V.I. Vernadsky Institute of General and Inorganic Chemistry; National Academy of Sciences of Ukraine; Kyiv Ukraine
| | - Anton Naumovets
- Institute of Physics; National Academy of Sciences of Ukraine; Kyiv Ukraine
| | - Sergiy Yarmoluk
- Institute of Molecular Biology and Genetics; National Academy of Sciences of Ukraine; Kyiv Ukraine
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29
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González-Lizárraga F, Socías SB, Ávila CL, Torres-Bugeau CM, Barbosa LRS, Binolfi A, Sepúlveda-Díaz JE, Del-Bel E, Fernandez CO, Papy-Garcia D, Itri R, Raisman-Vozari R, Chehín RN. Repurposing doxycycline for synucleinopathies: remodelling of α-synuclein oligomers towards non-toxic parallel beta-sheet structured species. Sci Rep 2017; 7:41755. [PMID: 28155912 PMCID: PMC5290535 DOI: 10.1038/srep41755] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 12/14/2016] [Indexed: 12/03/2022] Open
Abstract
Synucleinophaties are progressive neurodegenerative disorders with no cure to date. An attractive strategy to tackle this problem is repurposing already tested safe drugs against novel targets. In this way, doxycycline prevents neurodegeneration in Parkinson models by modulating neuroinflammation. However, anti-inflammatory therapy per se is insufficient to account for neuroprotection. Herein we characterise novel targets of doxycycline describing the structural background supporting its effectiveness as a neuroprotector at subantibiotic doses. Our results show that doxycycline reshapes α-synuclein oligomers into off-pathway, high-molecular-weight species that do not evolve into fibrils. Off-pathway species present less hydrophobic surface than on-pathway oligomers and display different β-sheet structural arrangement. These structural changes affect the α-synuclein ability to destabilize biological membranes, cell viability, and formation of additional toxic species. Altogether, these mechanisms could act synergically giving novel targets for repurposing this drug.
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Affiliation(s)
- Florencia González-Lizárraga
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina.,Institut National De La Santé Et De La Recherche Médicale, U 1127, CNRS, Unité Mixte De Recherche (UMR) 7225, Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, Institut Du Cerveau Et De La Moelle Epinière, ICM, Paris, France
| | - Sergio B Socías
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina
| | - César L Ávila
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina
| | - Clarisa M Torres-Bugeau
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina
| | - Leandro R S Barbosa
- Instituto de Física da Universidade de São Paulo - IFUSP, Rua do Matão, Travessa R, 187, São Paulo, Brazil
| | - Andres Binolfi
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK Rosario, Argentina
| | - Julia E Sepúlveda-Díaz
- Institut National De La Santé Et De La Recherche Médicale, U 1127, CNRS, Unité Mixte De Recherche (UMR) 7225, Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, Institut Du Cerveau Et De La Moelle Epinière, ICM, Paris, France
| | - Elaine Del-Bel
- Department of Morphology, Physiology and Stomatology, Faculty of Odontology of Ribeirão Preto, University of São Paulo, Brazil, Center of Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, Brazil
| | - Claudio O Fernandez
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK Rosario, Argentina
| | - Dulce Papy-Garcia
- Laboratoire Croissance, Réparation et Régénération Tissulaires (CRRET), CNRS ERL 9215, Université Paris Est Créteil, Université Paris Est, F-94000, Créteil, France
| | - Rosangela Itri
- Instituto de Física da Universidade de São Paulo - IFUSP, Rua do Matão, Travessa R, 187, São Paulo, Brazil
| | - Rita Raisman-Vozari
- Institut National De La Santé Et De La Recherche Médicale, U 1127, CNRS, Unité Mixte De Recherche (UMR) 7225, Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, Institut Du Cerveau Et De La Moelle Epinière, ICM, Paris, France
| | - Rosana N Chehín
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina
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