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Schoofs H, Schmit J, Rink L. Zinc Toxicity: Understanding the Limits. Molecules 2024; 29:3130. [PMID: 38999082 PMCID: PMC11243279 DOI: 10.3390/molecules29133130] [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: 05/27/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/14/2024] Open
Abstract
Zinc, a vital trace element, holds significant importance in numerous physiological processes within the body. It participates in over 300 enzymatic reactions, metabolic functions, regulation of gene expression, apoptosis and immune modulation, thereby demonstrating its essential role in maintaining overall health and well-being. While zinc deficiency is associated with significant health risks, an excess of this trace element can also lead to harmful effects. According to the World Health Organization (WHO), 6.7 to 15 mg per day are referred to be the dietary reference value. An excess of the recommended daily intake may result in symptoms such as anemia, neutropenia and zinc-induced copper deficiency. The European Food Safety Authority (EFSA) defines the tolerable upper intake level (UL) as 25 mg per day, whereas the Food and Drug Administration (FDA) allows 40 mg per day. This review will summarize the current knowledge regarding the calculation of UL and other health risks associated with zinc. For example, zinc intake is not limited to oral consumption; other routes, such as inhalation or topical application, may also pose risks of zinc intoxication.
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Affiliation(s)
- Hannah Schoofs
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelstrasse 30, 52074 Aachen, Germany
| | - Joyce Schmit
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelstrasse 30, 52074 Aachen, Germany
| | - Lothar Rink
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelstrasse 30, 52074 Aachen, Germany
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2
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Mirdha L. Aggregation Behavior of Amyloid Beta Peptide Depends Upon the Membrane Lipid Composition. J Membr Biol 2024:10.1007/s00232-024-00314-3. [PMID: 38888760 DOI: 10.1007/s00232-024-00314-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 05/15/2024] [Indexed: 06/20/2024]
Abstract
Protein aggregation plays a crucial role in the development of several neurodegenerative diseases. It is important to understand the aggregation process for the detection of the onset of these diseases. Alzheimer's Disease (AD) is one of the most prevalent neurodegenerative diseases caused by the aggregation of Aβ-40 and Aβ-42 peptides. The smaller oligomers lead to the formation of protein plaque at the neural membranes leading to memory loss and other disorders. Interestingly, aggregation takes place at the neural membranes, therefore the membrane composition seems to play an important role in the aggregation process. Despite a large number of literatures on the effect of lipid composition on protein aggregation, there are very few concise reviews that highlight the role of membrane composition in protein aggregation. In this review, we have discussed the implication of membrane composition on the aggregation of amyloid beta peptide with a special emphasis on cholesterol. We have further discussed the role of the degree of unsaturation of fatty acids and the participation of apolipoprotein E4 (ApoE4) in the onset of AD.
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Affiliation(s)
- Lipika Mirdha
- School of Chemistry, Sambalpur University, Jyoti Vihar, Burla, Odisha, 768 019, India.
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3
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Grcic L, Leech G, Kwan K, Storr T. Targeting misfolding and aggregation of the amyloid-β peptide and mutant p53 protein using multifunctional molecules. Chem Commun (Camb) 2024; 60:1372-1388. [PMID: 38204416 DOI: 10.1039/d3cc05834d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Biomolecule misfolding and aggregation play a major role in human disease, spanning from neurodegeneration to cancer. Inhibition of these processes is of considerable interest, and due to the multifactorial nature of these diseases, the development of drugs that act on multiple pathways simultaneously is a promising approach. This Feature Article focuses on the development of multifunctional molecules designed to inhibit the misfolding and aggregation of the amyloid-β (Aβ) peptide in Alzheimer's disease (AD), and the mutant p53 protein in cancer. While for the former, the goal is to accelerate the removal of the Aβ peptide and associated aggregates, for the latter, the goal is reactivation via stabilization of the active folded form of mutant p53 protein and/or aggregation inhibition. Due to the similar aggregation pathway of the Aβ peptide and mutant p53 protein, a common therapeutic approach may be applicable.
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Affiliation(s)
- Lauryn Grcic
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
| | - Grace Leech
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
| | - Kalvin Kwan
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
| | - Tim Storr
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
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4
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Singh N, Sharma S, Ghosh KK, Gupta B, Kuca K. Prominent Perspective on Existing Biological Hallmarks of Alzheimer's Disease. Curr Top Med Chem 2024; 24:1120-1133. [PMID: 38591203 DOI: 10.2174/0115680266292514240404040341] [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: 11/12/2023] [Revised: 02/24/2024] [Accepted: 03/08/2024] [Indexed: 04/10/2024]
Abstract
Biomarkers are the most significant diagnosis tools tending towards unique approaches and solutions for the prevention and cure of Alzheimer's Disease (AD). The current report provides a clear perception of the concept of various biomarkers and their prominent features through analysis to provide a possible solution for the inhibition of events in AD. Scientists around the world truly believe that crucial hallmarks can serve as critical tools in the early diagnosis, cure, and prevention, as well as the future of medicine. The awareness and understanding of such biomarkers would provide solutions to the puzzled mechanism of this neuronal disorder. Some of the argued biomarkers in the present article are still in an experimental phase as they need to undergo specific clinical trials before they can be considered for treatment.
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Affiliation(s)
- Namrata Singh
- Department of Engineering Science, Ramrao Adik Institute of Technology, DY Patil University, Navi Mumbai, 400706, India
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 50003, Hradec Kralove, Czech Republic
| | - Srishti Sharma
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, 492010 (C.G.), India
| | - Kallol K Ghosh
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, 492010 (C.G.), India
| | - Bhanushree Gupta
- Centre of Basic Sciences, Pt. Ravishankar Shukla University, Raipur, 492010 (C.G.), India
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 50003, Hradec Kralove, Czech Republic
- Research Institute for Biomedical Science, University of Hradec Králové, Antonína Dvoraka 451/1, 500 02 Hradec Kralove, Czech Republic
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5
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Chowdhury S, Sarkar N. Exploring the potential of amyloids in biomedical applications: A review. Biotechnol Bioeng 2024; 121:26-38. [PMID: 37822225 DOI: 10.1002/bit.28569] [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: 04/19/2023] [Revised: 08/31/2023] [Accepted: 09/24/2023] [Indexed: 10/13/2023]
Abstract
Amyloid is defined as a fibrous quaternary structure formed by assembling protein or peptide monomers into intermolecularly hydrogen linked β-sheets. There is a prevalent issue with protein aggregation and the buildup of amyloid molecules, which results in human neurological illnesses including Alzheimer's and Parkinson's. But it is now evident that many organisms, like bacteria, fungi as well as humans, use the same fibrillar structure to carry out a variety of biological functions, such as structure and protection supporting interface transitions and cell-cell recognition, protein control and storage, epigenetic inheritance, and memory. Recent discoveries of self-assembling amyloidogenic peptides and proteins, based on the amyloid core structure, give rise to interesting biomaterials with potential uses in numerous industries. These functions dramatically diverge from the initial conception of amyloid fibrils as intrinsically diseased entities. Apart from the natural ability of amyloids to spontaneously arrange themselves and their exceptional material characteristics, this aspect has prompted extensive research into engineering artificial amyloids for generating various nanostructures, molecular substances, and combined materials. Here, we discuss significant developments in the artificial design of useful amyloids as well as how amyloid materials serve as examples of how function emerges from protein self-assembly at various length scales.
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Affiliation(s)
- Srijita Chowdhury
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Nandini Sarkar
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
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6
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Chen WB, Wang YX, Wang HG, An D, Sun D, Li P, Zhang T, Lu WG, Liu YQ. Role of TPEN in Amyloid-β 25-35-Induced Neuronal Damage Correlating with Recovery of Intracellular Zn 2+ and Intracellular Ca 2+ Overloading. Mol Neurobiol 2023:10.1007/s12035-023-03322-x. [PMID: 37059931 DOI: 10.1007/s12035-023-03322-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 03/17/2023] [Indexed: 04/16/2023]
Abstract
The overproduction of neurotoxic amyloid-β (Aβ) peptides in the brain is a hallmark of Alzheimer's disease (AD). To determine the role of intracellular zinc ion (iZn2+) dysregulation in mediating Aβ-related neurotoxicity, this study aimed to investigate whether N, N, N', N'‑tetrakis (2‑pyridylmethyl) ethylenediamine (TPEN), a Zn2+‑specific chelator, could attenuate Aβ25-35‑induced neurotoxicity and the underlying mechanism. We used the 3-(4, 5-dimethyl-thiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay to measure the viability of primary hippocampal neurons. We also determined intracellular Zn2+ and Ca2+ concentrations, mitochondrial and lysosomal functions, and intracellular reactive oxygen species (ROS) content in hippocampal neurons using live-cell confocal imaging. We detected L-type voltage-gated calcium channel currents (L-ICa) in hippocampal neurons using the whole‑cell patch‑clamp technique. Furthermore, we measured the mRNA expression levels of proteins related to the iZn2+ buffer system (ZnT-3, MT-3) and voltage-gated calcium channels (Cav1.2, Cav1.3) in hippocampal neurons using RT-PCR. The results showed that TPEN attenuated Aβ25-35‑induced neuronal death, relieved the Aβ25-35‑induced increase in intracellular Zn2+ and Ca2+ concentrations; reversed the Aβ25-35‑induced increase in ROS content, the Aβ25-35‑induced increase in the L-ICa peak amplitude at different membrane potentials, the Aβ25-35‑induced the dysfunction of the mitochondria and lysosomes, and the Aβ25-35‑induced decrease in ZnT-3 and MT-3 mRNA expressions; and increased the Cav1.2 mRNA expression in the hippocampal neurons. These results suggest that TPEN, the Zn2+-specific chelator, attenuated Aβ25-35‑induced neuronal damage, correlating with the recovery of intracellular Zn2+ and modulation of abnormal Ca2+-related signaling pathways.
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Affiliation(s)
- Wen-Bo Chen
- College of Life Sciences, Nankai University, Tianjin, 300071, China
- School of Basic Medical Science, Henan University, Kaifeng, 475004, China
| | - Yu-Xiang Wang
- Department of Immunology and Pathogenic Biology, School of Basic Medical Sciences, Hebei University of Chinese Medicine, Shijiazhuang, 050200, Hebei, China
| | - Hong-Gang Wang
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Di An
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Dan Sun
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Pan Li
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgery Institute, Department of Neurology, Tianjin Huanhu Hospital Affiliated to Nankai University, Tianjin, China
| | - Tao Zhang
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Wan-Ge Lu
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yan-Qiang Liu
- College of Life Sciences, Nankai University, Tianjin, 300071, China.
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7
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Solid state synthesis of bispyridyl-ferrocene conjugates with unusual site selective 1,4-Michael addition, as potential inhibitor and electrochemical probe for fibrillation in amyloidogenic protein. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Oliyaei N, Moosavi-Nasab M, Tanideh N, Iraji A. Multiple roles of fucoxanthin and astaxanthin against Alzheimer's disease: Their pharmacological potential and therapeutic insights. Brain Res Bull 2023; 193:11-21. [PMID: 36435362 DOI: 10.1016/j.brainresbull.2022.11.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/14/2022] [Accepted: 11/22/2022] [Indexed: 11/24/2022]
Abstract
Alzheimer's disease (AD) is the most devastating neurodegenerative disorder affecting the elderly. The exact pathology of AD is not yet fully understood and several hallmarks such as the deposition of amyloid-β, tau hyperphosphorylation, and neuroinflammation, as well as mitochondrial, metal ions, autophagy, and cholinergic dysfunctions are known as pathologic features of AD. Since no definitive treatment has been proposed to target AD to date, many natural products have shown promising preventive potentials and contributed to slowing down the disease progression. Algae is a promising source of novel bioactive substances known to prevent neurodegenerative disorders including AD. In this context, fucoxanthin and astaxanthin, natural carotenoids abundant in algae, has shown to possess neuroprotective properties through antioxidant, and anti-inflammatory characteristics in modulating the symptoms of AD. Fucoxanthin and astaxanthin exhibit anti-AD activities by inhibition of AChE, BuChE, BACE-1, and MAO, suppression of Aβ accumulation. Also, fucoxanthin and astaxanthin inhibit apoptosis induced by Aβ1-42 and H2O2-induced cytotoxicity, and modulate the antioxidant enzymes (SOD and CAT), through inhibition of the ERK pathway. Moreover, cellular and animal studies on the beneficial effects of fucoxanthin and astaxanthin against AD were also reviewed. The potential role of fucoxanthin and astaxanthin exhibits great efficacy for the management of AD by acting on multiple targets.
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Affiliation(s)
- Najmeh Oliyaei
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Seafood Processing Research Center, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Marzieh Moosavi-Nasab
- Seafood Processing Research Center, School of Agriculture, Shiraz University, Shiraz, Iran; Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, Iran.
| | - Nader Tanideh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aida Iraji
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Central Research laboratory, Shiraz University of Medical Sciences, Shiraz, Iran.
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9
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Carvalho A, Barbosa BM, Flores JS, do Carmo Gonçalves P, Diniz R, Cordeiro Y, Fernández CO, Cukierman DS, Rey NA. New mescaline-related N-acylhydrazone and its unsubstituted benzoyl derivative: Promising metallophores for copper-associated deleterious effects relief in Alzheimer's disease. J Inorg Biochem 2023; 238:112033. [PMID: 36396525 DOI: 10.1016/j.jinorgbio.2022.112033] [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: 08/10/2022] [Revised: 10/03/2022] [Accepted: 10/15/2022] [Indexed: 11/16/2022]
Abstract
Alzheimer's disease (AD) is related to the presence of extracellular aggregated amyloid-β peptide (Aβ), which binds copper(II) with high affinity in its N-terminal region. In this sense, two new 1-methylimidazole-containing N-acylhydrazonic metallophores, namely, X1TMP and X1Benz, were synthesized as hydrochlorides and characterized. The compound X1TMP contains the 3,4,5-trimethoxybenzoyl moiety present in the structure of mescaline, a natural hallucinogenic protoalkaloid that occurs in some species of cacti. Single crystals of X1Benz, the unsubstituted derivative of X1TMP, were obtained. The experimental partition coefficients of both compounds were determined, as well as their apparent affinity for Cu2+ in aqueous solution. Ascorbate consumption assays showed that these N-acylhydrazones are able to lessen the production of ROS by the Cu(Aβ)-system, and a short-time scale aggregation study, measured through turbidity and confirmed by TEM images, revealed their capacity in preventing Aβ fibrillation at equimolar conditions in the presence and absence of copper. 1H15N HSQC NMR experiments demonstrated a direct interaction between Aβ and X1Benz, the most soluble of the compounds. The Cu2+ sequestering potential of this hydrazone towards Aβ was explored by 1H NMR. Although increasing amounts of X1Benz were unexpectedly not efficient at removing the metal-induced perturbations in Aβ backbone amides, the broadening effects observed on the compound's signals indicate the formation of a ternary Aβ‑copper-X1Benz species, which can be responsible for the observed ROS-lessening and aggregation-preventing activities. Overall, the N-acylhydrazones X1TMP and X1Benz have shown promising prospects as agents for the treatment of AD.
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Affiliation(s)
- Alessandra Carvalho
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro 22451-900, Brazil
| | - Barbara Marinho Barbosa
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro 22451-900, Brazil
| | - Jesica S Flores
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPINAT), Partner Laboratory of the Max Planck Institute for Multidisciplinary Sciences (MPINAT, MPG), Centro de Estudios Interdisciplinarios, Universidad Nacional de Rosario, Rosario S2002LRK, Argentina
| | - Phelippe do Carmo Gonçalves
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPINAT), Partner Laboratory of the Max Planck Institute for Multidisciplinary Sciences (MPINAT, MPG), Centro de Estudios Interdisciplinarios, Universidad Nacional de Rosario, Rosario S2002LRK, Argentina
| | - Renata Diniz
- Department of Chemistry, ICEx, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, Brazil
| | - Yraima Cordeiro
- Faculty of Pharmacy, CCS, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil
| | - Claudio O Fernández
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPINAT), Partner Laboratory of the Max Planck Institute for Multidisciplinary Sciences (MPINAT, MPG), Centro de Estudios Interdisciplinarios, Universidad Nacional de Rosario, Rosario S2002LRK, Argentina
| | - Daphne S Cukierman
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro 22451-900, Brazil; Faculty of Pharmacy, CCS, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil
| | - Nicolás A Rey
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro 22451-900, Brazil.
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10
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Mocanu CS, Darie-Ion L, Petre BA, Gradinaru VR, Drochioiu G. A computational study of metal ions interaction with amyloid-β 1-42 peptide structure in hyperpyrexia: Implications for Alzheimer disease. JOURNAL OF KING SAUD UNIVERSITY. SCIENCE 2022; 34:102184. [PMID: 35783243 PMCID: PMC9238029 DOI: 10.1016/j.jksus.2022.102184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 06/08/2022] [Accepted: 06/13/2022] [Indexed: 05/28/2023]
Abstract
Given the current context of the SARS-CoV-19 pandemic, among the interfering risky factors with the Aβ peptide aggregation in the brains of Alzheimer's disease (AD) patients can be hyperpyrexia and increased intracranial pressure (ICP). According to our hypothesis on the relationship between hyperpyrexia and cognitive decline in AD, two models of Aβ peptides were used in this study: the structure of AD amyloid beta-peptide and near-atomic resolution fibril structures of the Aβ peptide. Therefore, the binding templates were constructed for Aβ peptide regions able to bind 9 different metal ions. The fragment transformation method was used for the structural comparison between Aβ chains. Molecular dynamics simulation (MDS) was applied using the Nose-Poincare-Anderson equation to generate a theoretically correct NPT (isothermal-isobaric ensemble). The smallest dissimilarities were observed in the case of Cu+ binding potential followed by Co2+, both with similar variation. Structural changes have also occurred as a result of the dynamic simulation. All these changes suggest an aggravating factor in both hyperpyretic and AD conditions. Our findings suggest that elevated temperature and increased intracranial pressure rise the effect of peptide aggregation, by converting α-helix motif to β-sheet and random coil conformation, which are related to the formation of senile plaques in AD brains.
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Affiliation(s)
- Cosmin Stefan Mocanu
- Faculty of Chemistry, "Al. I. Cuza" University of Iasi, 11 Carol I, Iasi 70605, Romania
| | - Laura Darie-Ion
- Faculty of Chemistry, "Al. I. Cuza" University of Iasi, 11 Carol I, Iasi 70605, Romania
| | - Brindusa Alina Petre
- Faculty of Chemistry, "Al. I. Cuza" University of Iasi, 11 Carol I, Iasi 70605, Romania
- Center for Fundamental Research and Experimental Development in Translation Medicine, Regional Institute of Oncology, 2-4 General Henri Mathias Berthelot Str., 700483 Iasi, Romania
| | | | - Gabi Drochioiu
- Faculty of Chemistry, "Al. I. Cuza" University of Iasi, 11 Carol I, Iasi 70605, Romania
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11
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Zhang DY, Wang J, Fleeman RM, Kuhn MK, Swulius MT, Proctor EA, Dokholyan NV. Monosialotetrahexosylganglioside Promotes Early Aβ42 Oligomer Formation and Maintenance. ACS Chem Neurosci 2022; 13:1979-1991. [PMID: 35713284 PMCID: PMC10137048 DOI: 10.1021/acschemneuro.2c00221] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The aggregation of the amyloid beta (Aβ) peptide is associated with Alzheimer's disease (AD) pathogenesis. Cell membrane composition, especially monosialotetrahexosylganglioside (GM1), is known to promote the formation of Aβ fibrils, yet little is known about the roles of GM1 in the early steps of Aβ oligomer formation. Here, by using GM1-contained liposomes as a mimic of the neuronal cell membrane, we demonstrate that GM1 is a critical trigger of Aβ oligomerization and aggregation. We find that GM1 not only promotes the formation of Aβ fibrils but also facilitates the maintenance of Aβ42 oligomers on liposome membranes. We structurally characterize the Aβ42 oligomers formed on the membrane and find that GM1 captures Aβ by binding to its arginine-5 residue. To interrogate the mechanism of Aβ42 oligomer toxicity, we design a new liposome-based Ca2+-encapsulation assay and provide new evidence for the Aβ42 ion channel hypothesis. Finally, we determine the toxicity of Aβ42 oligomers formed on membranes. Overall, by uncovering the roles of GM1 in mediating early Aβ oligomer formation and maintenance, our work provides a novel direction for pharmaceutical research for AD.
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Affiliation(s)
- Dong Yan Zhang
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States
| | - Jian Wang
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States
| | - Rebecca M Fleeman
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States.,Department of Neurosurgery, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States.,Center for Neural Engineering, Pennsylvania State University, University Park, State College, Pennsylvania 16801, United States
| | - Madison K Kuhn
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States.,Department of Neurosurgery, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States.,Center for Neural Engineering, Pennsylvania State University, University Park, State College, Pennsylvania 16801, United States.,Department of Biomedical Engineering, Pennsylvania State University, University Park, State College, Pennsylvania 16801, United States
| | - Matthew T Swulius
- Department of Biochemistry & Molecular Biology, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States
| | - Elizabeth A Proctor
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States.,Department of Neurosurgery, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States.,Center for Neural Engineering, Pennsylvania State University, University Park, State College, Pennsylvania 16801, United States.,Department of Biomedical Engineering, Pennsylvania State University, University Park, State College, Pennsylvania 16801, United States.,Department of Engineering Science & Mechanics, Pennsylvania State University, University Park, State College, Pennsylvania 16801, United States
| | - Nikolay V Dokholyan
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States.,Department of Biomedical Engineering, Pennsylvania State University, University Park, State College, Pennsylvania 16801, United States.,Department of Biochemistry & Molecular Biology, Penn State College of Medicine, Hershey, Pennsylvania 17033-0850, United States.,Department of Chemistry, Pennsylvania State University, University Park, State College, Pennsylvania 16801, United States
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12
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Sánchez JM, Carratalá JV, Serna N, Unzueta U, Nolan V, Sánchez-Chardi A, Voltà-Durán E, López-Laguna H, Ferrer-Miralles N, Villaverde A, Vazquez E. The Poly-Histidine Tag H6 Mediates Structural and Functional Properties of Disintegrating, Protein-Releasing Inclusion Bodies. Pharmaceutics 2022; 14:pharmaceutics14030602. [PMID: 35335976 PMCID: PMC8955739 DOI: 10.3390/pharmaceutics14030602] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 12/13/2022] Open
Abstract
The coordination between histidine-rich peptides and divalent cations supports the formation of nano- and micro-scale protein biomaterials, including toxic and non-toxic functional amyloids, which can be adapted as drug delivery systems. Among them, inclusion bodies (IBs) formed in recombinant bacteria have shown promise as protein depots for time-sustained protein release. We have demonstrated here that the hexahistidine (H6) tag, fused to recombinant proteins, impacts both on the formation of bacterial IBs and on the conformation of the IB-forming protein, which shows a higher content of cross-beta intermolecular interactions in H6-tagged versions. Additionally, the addition of EDTA during the spontaneous disintegration of isolated IBs largely affects the protein leakage rate, again protein release being stimulated in His-tagged materials. This event depends on the number of His residues but irrespective of the location of the tag in the protein, as it occurs in either C-tagged or N-tagged proteins. The architectonic role of H6 in the formation of bacterial IBs, probably through coordination with divalent cations, offers an easy approach to manipulate protein leakage and to tailor the applicability of this material as a secretory amyloidal depot in different biomedical interfaces. In addition, the findings also offer a model to finely investigate, in a simple set-up, the mechanics of protein release from functional secretory amyloids.
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Affiliation(s)
- Julieta María Sánchez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
- Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), CONICET-Universidad Nacional de Córdoba, ICTA & Cátedra de Química Biológica, Departamento de Química, FCEFyN, UNC. Av. Velez Sarsfield 1611, Córdoba X 5016GCA, Argentina;
| | - José Vicente Carratalá
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
- Josep Carreras Leukaemia Research Institute, 08025 Barcelona, Spain
| | - Verónica Nolan
- Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), CONICET-Universidad Nacional de Córdoba, ICTA & Cátedra de Química Biológica, Departamento de Química, FCEFyN, UNC. Av. Velez Sarsfield 1611, Córdoba X 5016GCA, Argentina;
| | - Alejandro Sánchez-Chardi
- Servei de Microscòpia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Eric Voltà-Durán
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Hèctor López-Laguna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Neus Ferrer-Miralles
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
- Correspondence: (A.V.); (E.V.)
| | - Esther Vazquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain; (J.M.S.); (J.V.C.); (N.S.); (E.V.-D.); (H.L.-L.); (N.F.-M.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Plaça Cívica s/n, Bellaterra, 08193 Barcelona, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
- Correspondence: (A.V.); (E.V.)
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13
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Devi S, Chaturvedi M, Fatima S, Priya S. Environmental factors modulating protein conformations and their role in protein aggregation diseases. Toxicology 2022; 465:153049. [PMID: 34818560 DOI: 10.1016/j.tox.2021.153049] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/12/2021] [Accepted: 11/20/2021] [Indexed: 12/13/2022]
Abstract
The adverse physiological conditions have been long known to impact protein synthesis, folding and functionality. Major physiological factors such as the effect of pH, temperature, salt and pressure are extensively studied for their impact on protein structure and homeostasis. However, in the current scenario, the environmental risk factors (pollutants) have gained impetus in research because of their increasing concentrations in the environment and strong epidemiologic link with protein aggregation disorders. Here, we review the physiological and environmental risk factors for their impact on protein conformational changes, misfolding, aggregation, and associated pathological conditions, especially environmental risk factors associated pathologies.
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Affiliation(s)
- Shweta Devi
- Systems Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, CSIR-Indian Institute of Toxicology Research, Lucknow-226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Minal Chaturvedi
- Systems Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, CSIR-Indian Institute of Toxicology Research, Lucknow-226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Siraj Fatima
- Systems Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, CSIR-Indian Institute of Toxicology Research, Lucknow-226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Smriti Priya
- Systems Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, CSIR-Indian Institute of Toxicology Research, Lucknow-226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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14
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Rei Yan SL, Wakasuqui F, Du X, Groves MR, Wrenger C. Lipoic Acid Metabolism as a Potential Chemotherapeutic Target Against Plasmodium falciparum and Staphylococcus aureus. Front Chem 2021; 9:742175. [PMID: 34805091 PMCID: PMC8600131 DOI: 10.3389/fchem.2021.742175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/21/2021] [Indexed: 11/17/2022] Open
Abstract
Lipoic acid (LA) is an organic compound that plays a key role in cellular metabolism. It participates in a posttranslational modification (PTM) named lipoylation, an event that is highly conserved and that occurs in multimeric metabolic enzymes of very distinct microorganisms such as Plasmodium sp. and Staphylococcus aureus, including pyruvate dehydrogenase (PDH) and α-ketoglutarate dehydrogenase (KDH). In this mini review, we revisit the recent literature regarding LA metabolism in Plasmodium sp. and Staphylococcus aureus, by covering the lipoate ligase proteins in both microorganisms, the role of lipoate ligase proteins and insights for possible inhibitors of lipoate ligases.
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Affiliation(s)
- Sun Liu Rei Yan
- Unit for Drug Discovery, Department of Parasitology, Institute of Biomedical Sciences-ICB, University of São Paulo, São Paulo, Brazil
| | - Felipe Wakasuqui
- Unit for Drug Discovery, Department of Parasitology, Institute of Biomedical Sciences-ICB, University of São Paulo, São Paulo, Brazil
| | - Xiaochen Du
- Structural Biology in Drug Design, Department of Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands
| | - Matthew R Groves
- Structural Biology in Drug Design, Department of Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands
| | - Carsten Wrenger
- Unit for Drug Discovery, Department of Parasitology, Institute of Biomedical Sciences-ICB, University of São Paulo, São Paulo, Brazil
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15
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Álvarez-Marimon E, Castillo-Michel H, Reyes-Herrera J, Seira J, Aso E, Carmona M, Ferrer I, Cladera J, Benseny-Cases N. Synchrotron X-ray Fluorescence and FTIR Signatures for Amyloid Fibrillary and Nonfibrillary Plaques. ACS Chem Neurosci 2021; 12:1961-1971. [PMID: 33990138 DOI: 10.1021/acschemneuro.1c00048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Amyloid plaques are one of the principal hallmarks of Alzheimer's disease and are mainly composed of Aβ amyloid peptides together with other components such as lipids, cations, or glycosaminoglycans. The structure of amyloid peptide's aggregates is related to the peptide toxicity and highly depends on the aggregation conditions and the presence of cofactors. While fibrillary aggregates are nowadays considered nontoxic, oligomeric/granular (nonfibrillary) aggregates have been found to be toxic. In this work we have characterized in situ two different types of amyloid deposits analyzing sections of the cortex of patients in advanced stages of Alzheimer disease. By combining SR-μFTIR for the study of the secondary structure of the peptide and ThS fluorescence as an indicator of fibrillary structures, we found two types of plaques: ThS positive plaques with a clear infrared band at 1630 cm-1 that would correspond to fibrillary plaques and ThS negative plaques showing a mixture of nonfibrillar β-sheet and unordered aggregated structures that would correspond to the nonfibrillary plaques (plaques with increased unordered structure). The analysis of the FTIR spectra has allowed correlation of lipid oxidation with the presence of nonfibrillary plaques. The metal composition of the two types of plaques has been analyzed using SR-nano-XRF and XANES. The results have shown higher accumulation of iron (mainly Fe2+) in fibrillary plaques than in nonfibrillary ones. However, in nonfibrillary plaques Fe3+ has been found to predominate over Fe2+. The identification of different types of aggregated forms and the different composition of metals found in the different types of plaques could be of paramount importance for the understanding of the development of Alzheimer disease.
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Affiliation(s)
- Elena Álvarez-Marimon
- Unitat de Biofísica, Departament de Bioquímica i de Biologia Molecular, Facultat de Medicina, Universitat Autonoma de Barcelona, 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Hiram Castillo-Michel
- ID21, European Synchrotron Radiation Facility (ESRF), 71 Avenue des Martyrs, 38043 Grenoble, France
| | - Juan Reyes-Herrera
- ID21, European Synchrotron Radiation Facility (ESRF), 71 Avenue des Martyrs, 38043 Grenoble, France
| | - Jofre Seira
- Unitat de Biofísica, Departament de Bioquímica i de Biologia Molecular, Facultat de Medicina, Universitat Autonoma de Barcelona, 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Ester Aso
- Institut de Neuropatologia, IDIBELL-Hospital Universitari de Bellvitge, Universitat de Barcelona, 08907 Hospitalet de Llobregat, Barcelona, Spain
| | - Margarita Carmona
- Institut de Neuropatologia, IDIBELL-Hospital Universitari de Bellvitge, Universitat de Barcelona, 08907 Hospitalet de Llobregat, Barcelona, Spain
| | - Isidre Ferrer
- Institut de Neuropatologia, IDIBELL-Hospital Universitari de Bellvitge, Universitat de Barcelona, 08907 Hospitalet de Llobregat, Barcelona, Spain
| | - Josep Cladera
- Unitat de Biofísica, Departament de Bioquímica i de Biologia Molecular, Facultat de Medicina, Universitat Autonoma de Barcelona, 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Núria Benseny-Cases
- Consorcio para la Construccion Equipamiento y Explotacion del Laboratorio de Luz Sincrotron, ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Catalonia, Spain
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16
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Structural Studies Providing Insights into Production and Conformational Behavior of Amyloid-β Peptide Associated with Alzheimer's Disease Development. MOLECULES (BASEL, SWITZERLAND) 2021; 26:molecules26102897. [PMID: 34068293 PMCID: PMC8153327 DOI: 10.3390/molecules26102897] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/06/2021] [Accepted: 05/11/2021] [Indexed: 12/18/2022]
Abstract
Alzheimer's disease is the most common type of neurodegenerative disease in the world. Genetic evidence strongly suggests that aberrant generation, aggregation, and/or clearance of neurotoxic amyloid-β peptides (Aβ) triggers the disease. Aβ accumulates at the points of contact of neurons in ordered cords and fibrils, forming the so-called senile plaques. Aβ isoforms of different lengths are found in healthy human brains regardless of age and appear to play a role in signaling pathways in the brain and to have neuroprotective properties at low concentrations. In recent years, different substances have been developed targeting Aβ production, aggregation, interaction with other molecules, and clearance, including peptide-based drugs. Aβ is a product of sequential cleavage of the membrane glycoprotein APP (amyloid precursor protein) by β- and γ-secretases. A number of familial mutations causing an early onset of the disease have been identified in the APP, especially in its transmembrane domain. The mutations are reported to influence the production, oligomerization, and conformational behavior of Aβ peptides. This review highlights the results of structural studies of the main proteins involved in Alzheimer's disease pathogenesis and the molecular mechanisms by which perspective therapeutic substances can affect Aβ production and nucleation.
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17
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Ghosh P, Pateras J, Rangachari V, Vaidya A. A Network Thermodynamic Analysis of Amyloid Aggregation along Competing Pathways. APPLIED MATHEMATICS AND COMPUTATION 2021; 393:125778. [PMID: 33551515 PMCID: PMC7861474 DOI: 10.1016/j.amc.2020.125778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Aggregation of proteins towards amyloid formation is a significant event in many neurodegenerative diseases. Low-molecular weight oligomers are considered to be the primary toxic agents in many of these maladies. Therefore, there is an increasing interest in understanding their formation and behavior. In this paper, we build on our previously established theoretical investigations on the interactions between Aβ and lipids (L) that adopt off-pathway fibril formation under the control of L concentrations. Our previously developed competing game theoretic framework between the on- and off-pathway dynamics has been expanded to understand the underlying network topological structures in the reaction kinetics of amyloid formation. The mass-action based dynamical systems are solved to identify dominant pathways in the system with fixed initial conditions, and variations in the occurrence of these dominant pathways are identified as a function of various seeding conditions. The mechanistic approach is supported by thermodynamic free energy computations which helps identify stable reactions. The resulting analysis provides possible intervention strategies that can draw the dynamics away from the off-pathways and potential toxic intermediates. We also draw upon the classic literature on network thermodynamics to suggest new approaches to better understand such complex systems.
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Affiliation(s)
- P Ghosh
- Department of Computer Science, Virginia Commonwealth University, Richmond, VA 23220
| | - J Pateras
- Department of Mathematics, Montclair State University, Montclair, NJ 07043
| | - V Rangachari
- Department of Chemistry & Biochemistry, 118 College Dr, # 5043 University of Southern Mississippi, Hattiesburg, MS 39406
- Center for Cellular and Molecular Biosciences, University of Southern Mississippi, Hattiesburg MS 39406
| | - A Vaidya
- Department of Mathematics, Montclair State University, Montclair, NJ 07043
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18
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Xiu F, Xu S, Zhang C, Wang L. Synthesis and Bio-Evaluation of N-Benzylpiperidine-8-Hydroxyquinoline Derivatives as Potential Cholinesterase Inhibitors, Metal Ion Chelators and Calcium Channel Blockers. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1068162021020266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Thapa P, Upadhyay SP, Suo WZ, Singh V, Gurung P, Lee ES, Sharma R, Sharma M. Chalcone and its analogs: Therapeutic and diagnostic applications in Alzheimer's disease. Bioorg Chem 2021; 108:104681. [PMID: 33571811 PMCID: PMC7928223 DOI: 10.1016/j.bioorg.2021.104681] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/15/2020] [Accepted: 01/20/2021] [Indexed: 02/08/2023]
Abstract
Chalcone [(E)-1,3-diphenyl-2-propene-1-one], a small molecule with α, β unsaturated carbonyl group is a precursor or component of many natural flavonoids and isoflavonoids. It is one of the privileged structures in medicinal chemistry. It possesses a wide range of biological activities encouraging many medicinal chemists to study this scaffold for its usefulness to oncology, infectious diseases, virology and neurodegenerative diseases including Alzheimer's disease (AD). Small molecular size, convenient and cost-effective synthesis, and flexibility for modifications to modulate lipophilicity suitable for blood brain barrier (BBB) permeability make chalcones a preferred candidate for their therapeutic and diagnostic potential in AD. This review summarizes and highlights the importance of chalcone and its analogs as single target small therapeutic agents, multi-target directed ligands (MTDLs) as well as molecular imaging agents for AD. The information summarized here will guide many medicinal chemist and researchers involved in drug discovery to consider chalcone as a potential scaffold for the development of anti-AD agents including theranostics.
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Affiliation(s)
- Pritam Thapa
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA.
| | - Sunil P Upadhyay
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
| | - William Z Suo
- Laboratory for Alzheimer's Disease & Aging Research, Veterans Affairs Medical Center, Kansas City, MO 64128, USA
| | - Vikas Singh
- Division of Neurology, KCVA Medical Center, Kansas City, MO, USA
| | - Prajwal Gurung
- Inflammation Program, University of Iowa, Iowa City, IA 52242, USA
| | - Eung Seok Lee
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Ram Sharma
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
| | - Mukut Sharma
- Drug Discovery Program, Midwest Veterans' Biomedical Research Foundation, KCVA Medical Center, Kansas City, MO 64128, USA
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20
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Li S, Kerman K. Electrochemical biosensors for biometal-protein interactions in neurodegenerative diseases. Biosens Bioelectron 2021; 179:113035. [PMID: 33578115 DOI: 10.1016/j.bios.2021.113035] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 01/12/2021] [Accepted: 01/21/2021] [Indexed: 12/20/2022]
Abstract
Electrochemical biosensors have been adopted into a wide range of applications in the study of biometal-protein interactions in neurodegenerative diseases. Transition metals such as zinc, copper, and iron that are significant to biological functions have been shown to have strong implications in the progressive neural degeneration in Alzheimer's disease (AD), Parkinson's disease (PD), and prion protein diseases. This review presents a summative examination of the progress made in the design, fabrication, and applications of electrochemical biosensors in recent literature at understanding the metal-protein interactions in neurodegenerative diseases. The focus will be drawn on disease-causing biomarkers such as amyloid-β (Aβ) and tau proteins for AD, α-synuclein (α-syn) for PD, and prion proteins (PrP). Topics such as the use of electrochemical biosensing in monitoring biometal-induced conformational changes, elucidation of complexation motifs, production of reactive oxygen species (ROS) as well as the influence on downstream biomolecular interactions will be discussed. Major results and important concepts presented in these studies will be summarized in the hope to spark inspiration for the next generation of electrochemical sensors.
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Affiliation(s)
- Shaopei Li
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada
| | - Kagan Kerman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada.
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21
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Pseudopeptide Amyloid Aggregation Inhibitors: In Silico, Single Molecule and Cell Viability Studies. Int J Mol Sci 2021; 22:ijms22031051. [PMID: 33494369 PMCID: PMC7865305 DOI: 10.3390/ijms22031051] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/13/2021] [Accepted: 01/19/2021] [Indexed: 11/17/2022] Open
Abstract
Neurodegeneration in Alzheimer's disease (AD) is defined by pathology featuring amyloid-β (Aβ) deposition in the brain. Aβ monomers themselves are generally considered to be nontoxic, but misfold into β-sheets and aggregate to form neurotoxic oligomers. One suggested strategy to treat AD is to prevent the formation of toxic oligomers. The SG inhibitors are a class of pseudopeptides designed and optimized using molecular dynamics (MD) simulations for affinity to Aβ and experimentally validated for their ability to inhibit amyloid-amyloid binding using single molecule force spectroscopy (SMFS). In this work, we provide a review of our previous MD and SMFS studies of these inhibitors and present new cell viability studies that demonstrate their neuroprotective effects against Aβ(1-42) oligomers using mouse hippocampal-derived HT22 cells. Two of the tested SG inhibitors, predicted to bind Aβ in anti-parallel orientation, demonstrated neuroprotection against Aβ(1-42). A third inhibitor, predicted to bind parallel to Aβ, was not neuroprotective. Myristoylation of SG inhibitors, intended to enhance delivery across the blood-brain barrier (BBB), resulted in cytotoxicity. This is the first use of HT22 cells for the study of peptide aggregation inhibitors. Overall, this work will inform the future development of peptide aggregation inhibitors against Aβ toxicity.
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22
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The Neuromelanin Paradox and Its Dual Role in Oxidative Stress and Neurodegeneration. Antioxidants (Basel) 2021; 10:antiox10010124. [PMID: 33467040 PMCID: PMC7829956 DOI: 10.3390/antiox10010124] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 12/12/2022] Open
Abstract
Aging is associated with an increasing dysfunction of key brain homeostasis mechanisms and represents the main risk factor across most neurodegenerative disorders. However, the degree of dysregulation and the affectation of specific pathways set apart normal aging from neurodegenerative disorders. In particular, the neuronal metabolism of catecholaminergic neurotransmitters appears to be a specifically sensitive pathway that is affected in different neurodegenerations. In humans, catecholaminergic neurons are characterized by an age-related accumulation of neuromelanin (NM), rendering the soma of the neurons black. This intracellular NM appears to serve as a very efficient quencher for toxic molecules. However, when a neuron degenerates, NM is released together with its load (many undegraded cellular components, transition metals, lipids, xenobiotics) contributing to initiate and worsen an eventual immune response, exacerbating the oxidative stress, ultimately leading to the neurodegenerative process. This review focuses on the analysis of the role of NM in normal aging and neurodegeneration related to its capabilities as an antioxidant and scavenging of harmful molecules, versus its involvement in oxidative stress and aberrant immune response, depending on NM saturation state and its extracellular release.
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23
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Ben-Shushan S, Miller Y. Insulin fibrillation control by specific zinc binding sites. Inorg Chem Front 2021. [DOI: 10.1039/d1qi01054a] [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
Herein, we present for the first time a study that identifies the morphology of full-length insulin fibrils in the absence and in the presence of Zn2+ ions.
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Affiliation(s)
- Shira Ben-Shushan
- Department of Chemistry, Ben-Gurion University of the Negev, P.O. Box 653, Beér Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beér-Sheva 84105, Israel
| | - Yifat Miller
- Department of Chemistry, Ben-Gurion University of the Negev, P.O. Box 653, Beér Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beér-Sheva 84105, Israel
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24
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Abstract
Alzheimer’s disease (AD) is the most common form of dementia, and the prevalence of this currently untreatable disease is expected to rise in step with increased global life expectancy. AD is a multifaceted disorder commonly characterized by extracellular amyloid–beta (Aβ) aggregates, oxidative stress, metal ion dysregulation, and intracellular neurofibrillary tangles. This review will focus on medicinal inorganic chemistry strategies to target AD, with a focus on the Aβ peptide and its relation to metal ion dysregulation and oxidative stress. Multifunctional compounds designed to target multiple disease processes have emerged as promising therapeutic options, and recent reports detailing multifunctional metal-binding compounds, as well as discrete metal complexes, will be discussed.
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Affiliation(s)
- Tim Storr
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada
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25
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Gordon CK, Luu R, Lynn D. Capturing nested information from disordered peptide phases. Pept Sci (Hoboken) 2020. [DOI: 10.1002/pep2.24215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Regina Luu
- Departments of Chemistry and Biology Emory University Atlanta Georgia USA
| | - David Lynn
- Departments of Chemistry and Biology Emory University Atlanta Georgia USA
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Narayanan SE, Rehuman NA, Harilal S, Vincent A, Rajamma RG, Behl T, Uddin MS, Ashraf GM, Mathew B. Molecular mechanism of zinc neurotoxicity in Alzheimer's disease. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:43542-43552. [PMID: 32909132 DOI: 10.1007/s11356-020-10477-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Zinc (Zn) is an essential trace element for most organisms, including human beings. It plays a crucial role in several physiological processes such as catalytic reaction of enzymes, cellular growth, differentiation and metabolism, intracellular signaling, and modulation of nucleic acid structure. Zn containing above 50 metalloenzymes is responsible for proteins, receptors, and hormones synthesis and has a critical role in neurodevelopment. Zn also regulates excitatory and inhibitory neurotransmitters such as glutamate and GABA and is found in high concentration in the synaptic terminals of hippocampal mossy fibers that maintains cognitive function. It regulates LTP and LTD by regulation of AMPA and NMDA receptors. But an excess or deficiency of Zn becomes neurotoxic or cause impairment in growth or sexual maturation. There is mounting evidence that supports this idea of Zn becoming neurotoxic and being involved in the pathogenesis of AD. Zn dyshomeostasis in AD is an area that needs attention as moderate concentration of Zn is involved in the memory regulation via regulation of amyloid plaque. Dyshomeostasis of Zn is involved in the pathogenesis of diseases like AD, ALS, depression, PD, and schizophrenia.
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Affiliation(s)
- Siju Ellickal Narayanan
- P.G. Department of Pharmacology, College of Pharmaceutical Sciences, Govt. Medical College, Kannur, 670503, India
| | - Nisha Abdul Rehuman
- Department of Pharmaceutical Chemistry, Dr. Joseph Mar Thoma Institute of Pharmaceutical Sciences & Research, Kayamkulam, Kerala, 690503, India
| | - Seetha Harilal
- Department of Pharmacy, Kerala University of Health Sciences, Thrissur, Kerala, India
| | - Anju Vincent
- P.G. Department of Pharmacology, College of Pharmaceutical Sciences, Govt. Medical College, Kannur, 670503, India
| | | | - Tapan Behl
- Department of Pharmacology, Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh
- Pharmakon Neuroscience Research Network, Dhaka, Bangladesh
| | - Ghulam Md Ashraf
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Bijo Mathew
- Division of Drug Design and Medicinal Chemistry Research Lab, Department of Pharmaceutical Chemistry, Ahalia School of Pharmacy, Palakkad, Kerala, 678557, India.
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Ikram M, Park TJ, Ali T, Kim MO. Antioxidant and Neuroprotective Effects of Caffeine against Alzheimer's and Parkinson's Disease: Insight into the Role of Nrf-2 and A2AR Signaling. Antioxidants (Basel) 2020; 9:antiox9090902. [PMID: 32971922 PMCID: PMC7554764 DOI: 10.3390/antiox9090902] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/20/2020] [Accepted: 09/21/2020] [Indexed: 12/15/2022] Open
Abstract
This paper reviews the results of studies conducted on the role of caffeine in the management of different neurological disorders, such as Parkinson's disease (PD) and Alzheimer's disease (AD). To highlight the potential role of caffeine in managing different neurodegenerative diseases, we identified studies by searching PubMed, Web of Science, and Google Scholar by scrutinizing the lists of pertinent publications. According to the collected overall findings, caffeine may reduce the elevated oxidative stress; inhibit the activation of adenosine A2A, thereby regulating the accumulation of Aβ; reduce the hyperphosphorylation of tau; and reduce the accumulation of misfolded proteins, such as α-synuclein, in Alzheimer's and Parkinson's diseases. The studies have suggested that caffeine has promising protective effects against different neurodegenerative diseases and that these effects may be used to tackle the neurological diseases and/or their consequences. Here, we review the ongoing research on the role of caffeine in the management of different neurodegenerative disorders, focusing on AD and PD. The current findings suggest that caffeine produces potent antioxidant, inflammatory, and anti-apoptotic effects against different models of neurodegenerative disease, including AD, PD, and other neurodegenerative disorders. Caffeine has shown strong antagonistic effects against the adenosine A2A receptor, which is a microglial receptor, and strong agonistic effects against nuclear-related factor-2 (Nrf-2), thereby regulating the cellular homeostasis at the brain by reducing oxidative stress, neuroinflammation, regulating the accumulation of α-synuclein in PD and tau hyperphosphorylation, amyloidogenesis, and synaptic deficits in AD, which are the cardinal features of these neurodegenerative diseases.
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Affiliation(s)
- Muhammad Ikram
- Division of Life Science and Applied Life Science (BK21 plus), College of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (M.I.); (T.A.)
| | - Tae Ju Park
- Paul O’Gorman Leukaemia Research Centre, Institute of Cancer Sciences, University of Glasgow, Glasgow 0747 657 5394, UK;
| | - Tahir Ali
- Division of Life Science and Applied Life Science (BK21 plus), College of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (M.I.); (T.A.)
| | - Myeong Ok Kim
- Division of Life Science and Applied Life Science (BK21 plus), College of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (M.I.); (T.A.)
- Correspondence: ; Tel.: +82-55-772-1345; Fax: +82-55-772-2656
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Mason AJ, Hurst I, Malik R, Siddique I, Solomonov I, Sagi I, Klärner FG, Schrader T, Bitan G. Different Inhibitors of Aβ42-Induced Toxicity Have Distinct Metal-Ion Dependency. ACS Chem Neurosci 2020; 11:2243-2255. [PMID: 32559370 DOI: 10.1021/acschemneuro.0c00192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Oligomers of amyloid β-protein (Aβ) are thought to be the proximal toxic agents initiating the neuropathologic process in Alzheimer's disease (AD). Therefore, targeting the self-assembly and oligomerization of Aβ has been an important strategy for designing AD therapeutics. In parallel, research into the metallobiology of AD has shown that Zn2+ can strongly modulate the aggregation of Aβ in vitro and both promote and inhibit the neurotoxicity of Aβ, depending on the experimental conditions. Thus, successful inhibitors of Aβ self-assembly may have to inhibit the toxicity not only of Aβ oligomers themselves but also of Aβ-Zn2+ complexes. However, there has been relatively little research investigating the effects of Aβ self-assembly and toxicity inhibitors in the presence of Zn2+. Our group has characterized previously a series of Aβ42 C-terminal fragments (CTFs), some of which have been shown to inhibit Aβ oligomerization and neurotoxicity. Here, we asked whether three CTFs shown to be potent inhibitors of Aβ42 toxicity maintained their activity in the presence of Zn2+. Biophysical analysis showed that the CTFs had different effects on oligomer, β-sheet, and fibril formation by Aβ42-Zn2+ complexes. However, cell viability experiments in differentiated PC-12 cells incubated with Aβ42-Zn2+ complexes in the absence or presence of these CTFs showed that the CTFs completely lost their inhibitory activity in the presence of Zn2+ even when applied at 10-fold excess relative to Aβ42. In light of these results, we tested another inhibitor, the molecular tweezer CLR01, which coincidentally had been shown to have a high affinity for Zn2+, suggesting that it could disrupt both Aβ42 oligomerization and Aβ42-Zn2+ complexation. Indeed, we found that CLR01 effectively inhibited the toxicity of Aβ42-Zn2+ complexes. Moreover, it did so at a lower concentration than needed for inhibiting the toxicity of Aβ42 alone. In agreement with these results, CLR01 inhibited β-sheet and fibril formation in Aβ42-Zn2+ complexes. Our data suggest that, for the development of efficient therapeutic agents, inhibitors of Aβ self-assembly and toxicity should be examined in the presence of relevant metal ions and that molecular tweezers may be particularly attractive candidates for therapy development.
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Affiliation(s)
- Ashley J. Mason
- Department of Neurology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California 90095, United States
| | - Ian Hurst
- Department of Neurology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California 90095, United States
| | - Ravinder Malik
- Department of Neurology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California 90095, United States
| | - Ibrar Siddique
- Department of Neurology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California 90095, United States
| | - Inna Solomonov
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Irit Sagi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Frank-Gerrit Klärner
- Institute of Organic Chemistry, University of Duisburg-Essen, Essen 45117, Germany
| | - Thomas Schrader
- Institute of Organic Chemistry, University of Duisburg-Essen, Essen 45117, Germany
| | - Gal Bitan
- Department of Neurology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California 90095, United States
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Waeytens J, Van Hemelryck V, Deniset-Besseau A, Ruysschaert JM, Dazzi A, Raussens V. Characterization by Nano-Infrared Spectroscopy of Individual Aggregated Species of Amyloid Proteins. Molecules 2020; 25:molecules25122899. [PMID: 32599698 PMCID: PMC7356528 DOI: 10.3390/molecules25122899] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 12/30/2022] Open
Abstract
Amyloid fibrils are composed of aggregated peptides or proteins in a fibrillar structure with a higher β-sheet content than in their native structure. To characterize them, we used an innovative tool that coupled infrared spectroscopy with atomic force microscopy (AFM-IR). With this method, we show that we can detect different individual aggregated species from oligomers to fibrils and study their morphologies by AFM and their secondary structures based on their IR spectra. AFM-IR overcomes the weak spatial resolution of usual infrared spectroscopy and achieves a resolution of ten nanometers, the size of isolated fibrils. We characterized oligomers, amyloid fibrils of Aβ42 and fibrils of α-synuclein. To our surprise, we figured out that the nature of some surfaces (ZnSe) used to study the samples induces destructuring of amyloid samples, leading to amorphous aggregates. We strongly suggest taking this into consideration in future experiments with amyloid fibrils. More importantly, we demonstrate the advantages of AFM-IR, with a high spatial resolution (≤ 10 nm) allowing spectrum recording on individual aggregated supramolecular entities selected thanks to the AFM images or on thin layers of proteins.
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Affiliation(s)
- Jehan Waeytens
- Structure et Fonction des Membranes Biologiques, Université libre de Bruxelles, B-1050 Bruxelles, Belgique; (J.W.); (J.-M.R.)
- Laboratoire de Chimie Physique d’Orsay, CNRS UMR8000, Université Paris-Sud, Université Paris-Saclay, F-91400 Orsay, France; (A.D.-B.); (A.D.)
| | | | - Ariane Deniset-Besseau
- Laboratoire de Chimie Physique d’Orsay, CNRS UMR8000, Université Paris-Sud, Université Paris-Saclay, F-91400 Orsay, France; (A.D.-B.); (A.D.)
| | - Jean-Marie Ruysschaert
- Structure et Fonction des Membranes Biologiques, Université libre de Bruxelles, B-1050 Bruxelles, Belgique; (J.W.); (J.-M.R.)
| | - Alexandre Dazzi
- Laboratoire de Chimie Physique d’Orsay, CNRS UMR8000, Université Paris-Sud, Université Paris-Saclay, F-91400 Orsay, France; (A.D.-B.); (A.D.)
| | - Vincent Raussens
- Structure et Fonction des Membranes Biologiques, Université libre de Bruxelles, B-1050 Bruxelles, Belgique; (J.W.); (J.-M.R.)
- Correspondence:
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Atrián-Blasco E, Cerrada E, Faller P, Laguna M, Hureau C. Role of PTA in the prevention of Cu(amyloid-β) induced ROS formation and amyloid-β oligomerisation in the presence of Zn. Metallomics 2020; 11:1154-1161. [PMID: 31098605 DOI: 10.1039/c9mt00011a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Metal-targeting drugs are being widely explored as a possible treatment for Alzheimer's disease, but most of these ligands are developed to coordinate Cu(ii). In a previous communication (E. Atrián-Blasco, E. Cerrada, A. Conte-Daban, D. Testemale, P. Faller, M. Laguna and C. Hureau, Metallomics, 2015, 7, 1229-1232) we showed another strategy where Cu(i) was targeted with the PTA (1,3,5-triaza-7-phosphaadamantane) ligand that is able to target Cu(ii) as well, reduce it and keep it in a safe complexed species. Removal of Cu(ii) from the amyloid-β peptide prevents the stabilization of oligomers and protofibrils and the complexation of Cu(i) also stops the formation of reactive oxygen species. Besides, zinc, which is found in the synaptic cleft at a higher concentration than copper, can hamper the ability of metal-targeting drug candidates, an issue that is still poorly considered and studied. Here we show that PTA fully retains the above described properties even in the presence of zinc, thus fulfilling an additional pre-requisite for its use as a model of Cu(i)-targeting drug candidates in the Alzheimer's disease context.
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31
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Metal complexes that bind to the amyloid-β peptide of relevance to Alzheimer’s disease. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213255
expr 886172045 + 931245952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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32
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Gomes LM, Bataglioli JC, Storr T. Metal complexes that bind to the amyloid-β peptide of relevance to Alzheimer’s disease. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213255] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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33
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Kao CH, Ryu SW, Kim MJ, Wen X, Wimalarathne O, Paull TT. Growth-Regulated Hsp70 Phosphorylation Regulates Stress Responses and Prion Maintenance. Mol Cell Biol 2020; 40:e00628-19. [PMID: 32205407 PMCID: PMC7261718 DOI: 10.1128/mcb.00628-19] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/05/2020] [Accepted: 03/18/2020] [Indexed: 11/20/2022] Open
Abstract
Maintenance of protein homeostasis in eukaryotes under normal growth and stress conditions requires the functions of Hsp70 chaperones and associated cochaperones. Here, we investigate an evolutionarily conserved serine phosphorylation that occurs at the site of communication between the nucleotide-binding and substrate-binding domains of Hsp70. Ser151 phosphorylation in yeast Hsp70 (Ssa1) is promoted by cyclin-dependent kinase (Cdk1) during normal growth. Phosphomimetic substitutions at this site (S151D) dramatically downregulate heat shock responses, a result conserved with HSC70 S153 in human cells. Phosphomimetic forms of Ssa1 also fail to relocalize in response to starvation conditions, do not associate in vivo with Hsp40 cochaperones Ydj1 and Sis1, and do not catalyze refolding of denatured proteins in vitro in cooperation with Ydj1 and Hsp104. Despite these negative effects on HSC70/HSP70 function, the S151D phosphomimetic allele promotes survival of heavy metal exposure and suppresses the Sup35-dependent [PSI+ ] prion phenotype, consistent with proposed roles for Ssa1 and Hsp104 in generating self-nucleating seeds of misfolded proteins. Taken together, these results suggest that Cdk1 can downregulate Hsp70 function through phosphorylation of this site, with potential costs to overall chaperone efficiency but also advantages with respect to reduction of metal-induced and prion-dependent protein aggregate production.
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Affiliation(s)
- Chung-Hsuan Kao
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
| | - Seung W Ryu
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
| | - Min J Kim
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
| | - Xuemei Wen
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
| | - Oshadi Wimalarathne
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
| | - Tanya T Paull
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
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Wallin C, Jarvet J, Biverstål H, Wärmländer S, Danielsson J, Gräslund A, Abelein A. Metal ion coordination delays amyloid-β peptide self-assembly by forming an aggregation-inert complex. J Biol Chem 2020; 295:7224-7234. [PMID: 32241918 PMCID: PMC7247290 DOI: 10.1074/jbc.ra120.012738] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/01/2020] [Indexed: 01/28/2023] Open
Abstract
A detailed understanding of the molecular pathways for amyloid-β (Aβ) peptide aggregation from monomers into amyloid fibrils, a hallmark of Alzheimer's disease, is crucial for the development of diagnostic and therapeutic strategies. We investigate the molecular details of peptide fibrillization in vitro by perturbing this process through addition of differently charged metal ions. Here, we used a monovalent probe, the silver ion, that, similarly to divalent metal ions, binds to monomeric Aβ peptide and efficiently modulates Aβ fibrillization. On the basis of our findings, combined with our previous results on divalent zinc ions, we propose a model that links the microscopic metal-ion binding to Aβ monomers to its macroscopic impact on the peptide self-assembly observed in bulk experiments. We found that substoichiometric concentrations of the investigated metal ions bind specifically to the N-terminal region of Aβ, forming a dynamic, partially compact complex. The metal-ion bound state appears to be incapable of aggregation, effectively reducing the available monomeric Aβ pool for incorporation into fibrils. This is especially reflected in a decreased fibril-end elongation rate. However, because the bound state is significantly less stable than the amyloid state, Aβ peptides are only transiently redirected from fibril formation, and eventually almost all Aβ monomers are integrated into fibrils. Taken together, these findings unravel the mechanistic consequences of delaying Aβ aggregation via weak metal-ion binding, quantitatively linking the contributions of specific interactions of metal ions with monomeric Aβ to their effects on bulk aggregation.
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Affiliation(s)
- Cecilia Wallin
- Department of Biochemistry and Biophysics, The Arrhenius Laboratories, Stockholm University, 106 91 Stockholm, Sweden
| | - Jüri Jarvet
- Department of Biochemistry and Biophysics, The Arrhenius Laboratories, Stockholm University, 106 91 Stockholm, Sweden
| | - Henrik Biverstål
- Department of Neurobiology, Care Sciences and Society, Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, 141 52 Huddinge, Sweden; Department of Physical Organic Chemistry, Latvian Institute of Organic Synthesis, Riga LV-1006, Latvia
| | - Sebastian Wärmländer
- Department of Biochemistry and Biophysics, The Arrhenius Laboratories, Stockholm University, 106 91 Stockholm, Sweden
| | - Jens Danielsson
- Department of Biochemistry and Biophysics, The Arrhenius Laboratories, Stockholm University, 106 91 Stockholm, Sweden
| | - Astrid Gräslund
- Department of Biochemistry and Biophysics, The Arrhenius Laboratories, Stockholm University, 106 91 Stockholm, Sweden
| | - Axel Abelein
- Department of Neurobiology, Care Sciences and Society, Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, 141 52 Huddinge, Sweden.
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Liyanage SI, Weaver DF. Misfolded proteins as a therapeutic target in Alzheimer's disease. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2020; 118:371-411. [PMID: 31928732 DOI: 10.1016/bs.apcsb.2019.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
For decades, Alzheimer's Disease (AD) was defined as a disorder of protein misfolding and aggregation. In particular, the extracellular peptide fragment: amyloid-β (Aβ), and the intracellular microtubule-associated protein: tau, were thought to initiate a neurodegenerative cascade which culminated in AD's progressive loss of memory and executive function. As such, both proteins became the focus of intense scrutiny, and served as the principal pathogenic target for hundreds of clinical trials. However, with varying efficacy, none of these investigations produced a disease-modifying therapy - offering patients with AD little recourse aside from transient, symptomatic medications. The near universal failure of clinical trials is unprecedented for a major research discipline. In part, this has motivated an increasing skepticism of the relevance of protein misfolding to AD's etiology. Several recent observations, principally the presence of significant protein pathologies in non-demented seniors, have lent credence to an apparent cursory role for Aβ and tau. Herein, we review both Aβ and tau, examining the processes from their biosynthesis to their pathogenesis and evaluate their vulnerability to medicinal intervention. We further attempt to reconcile the apparent failure of trials with the potential these targets hold. Ultimately, we seek to answer if protein misfolding is a viable platform in the pursuit of a disease-arresting strategy for AD.
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Affiliation(s)
- S Imindu Liyanage
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Donald F Weaver
- Krembil Research Institute, University Health Network, Toronto, ON, Canada; Departments of Medicine (Neurology), Chemistry and Pharmaceutical Sciences, University of Toronto, Toronto, ON, Canada
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36
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Santos G, Borges JMP, Avila-Rodriguez M, Gaíno SB, Barreto GE, Rúbio ÉP, Aguiar RM, Galembeck E, Bromochenkel CB, de Oliveira DM. Copper and Neurotoxicity in Autism Spectrum Disorder. Curr Pharm Des 2019; 25:4747-4754. [PMID: 31845627 DOI: 10.2174/1381612825666191217091939] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 12/08/2019] [Indexed: 12/23/2022]
Abstract
Free radicals (FR) act on living organisms and present unpaired electrons in the molecular orbitals of oxygen or nitrogen species. They are classified as redox reactions and account for a wide range of processes in biological systems. Genetic and environmental factors may alter the levels of FR in the cell, leading to deleterious consequences such as membrane lipid peroxidation, protein nitration, enzyme, carbohydrate and DNA damage, ultimately resulting in premature aging and a pro-inflammatory microenvironment as observed in Alzheimer's disease (AD) and autism spectrum disorder (ASD). O2 radical ability to act as a Lewis base and to form a complex with metal transition such as iron and copper (Lewis acids) leads to biomolecules oxidation at physiological pH, thus increasing the possibility of injury and oxidative damage in biological tissues. In this review, we discuss the role of metals, like copper, and the amyloid precursor protein (APP) derivative (s-APP-alpha) as an antioxidant and a possible adjuvant in the treatment of some autistic spectrum disorder symptoms (ASD).
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Affiliation(s)
- Gesivaldo Santos
- Department of Biological Science, State University of Southwestern of Bahia, Bahia, Brazil
| | - Julita M P Borges
- Department of Science and Technology, State University of Southwestern of Bahia, Bahia, Brazil
| | | | | | - George E Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland
| | - Érika P Rúbio
- Department of Science and Technology, State University of Southwestern of Bahia, Bahia, Brazil
| | - Rosane M Aguiar
- Department of Science and Technology, State University of Southwestern of Bahia, Bahia, Brazil
| | - Eduardo Galembeck
- Institute of Biology, State University of Campinas-São Paulo, São Paulo, Brazil
| | | | - Djalma M de Oliveira
- Department of Science and Technology, State University of Southwestern of Bahia, Bahia, Brazil
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Gomes LMF, Bataglioli JC, Jussila AJ, Smith JR, Walsby CJ, Storr T. Modification of Aβ Peptide Aggregation via Covalent Binding of a Series of Ru(III) Complexes. Front Chem 2019; 7:838. [PMID: 31921764 PMCID: PMC6915085 DOI: 10.3389/fchem.2019.00838] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 11/18/2019] [Indexed: 12/31/2022] Open
Abstract
Alzheimer's disease (AD) is the most common form of dementia, leading to loss of cognition, and eventually death. The disease is characterized by the formation of extracellular aggregates of the amyloid-beta (Aβ) peptide and neurofibrillary tangles of tau protein inside cells, and oxidative stress. In this study, we investigate a series of Ru(III) complexes (Ru-N) derived from NAMI-A in which the imidazole ligand has been substituted for pyridine derivatives, as potential therapeutics for AD. The ability of the Ru-N series to bind to Aβ was evaluated by NMR and ESI-MS, and their influence on the Aβ peptide aggregation process was investigated via electrophoresis gel/western blot, TEM, turbidity, and Bradford assays. The complexes were shown to bind covalently to the Aβ peptide, likely via a His residue. Upon binding, the complexes promote the formation of soluble high molecular weight aggregates, in comparison to peptide precipitation for peptide alone. In addition, TEM analysis supports both amorphous and fibrillar aggregate morphology for Ru-N treatments, while only large amorphous aggregates are observed for peptide alone. Overall, our results show that the Ru-N complexes modulate Aβ peptide aggregation, however, the change in the size of the pyridine ligand does not substantially alter the Aβ aggregation process.
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Affiliation(s)
- Luiza M F Gomes
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada
| | | | - Allison J Jussila
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada
| | - Jason R Smith
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada
| | - Charles J Walsby
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada
| | - Tim Storr
- Department of Chemistry, Simon Fraser University, Burnaby, BC, Canada
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Ijomone OM, Aluko OM, Okoh COA, Martins AC, Aschner M. Role for calcium signaling in manganese neurotoxicity. J Trace Elem Med Biol 2019; 56:146-155. [PMID: 31470248 DOI: 10.1016/j.jtemb.2019.08.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 08/15/2019] [Accepted: 08/16/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND Calcium is an essential macronutrient that is involved in many cellular processes. Homeostatic control of intracellular levels of calcium ions [Ca2+] is vital to maintaining cellular structure and function. Several signaling molecules are involved in regulating Ca2+ levels in cells and perturbation of calcium signaling processes is implicated in several neurodegenerative and neurologic conditions. Manganese [Mn] is a metal which is essential for basic physiological functions. However, overexposure to Mn from environmental contamination and workplace hazards is a global concern. Mn overexposure leads to its accumulation in several human organs particularly the brain. Mn accumulation in the brain results in a manganism, a Parkinsonian-like syndrome. Additionally, Mn is a risk factor for several neurodegenerative diseases including Parkinson's disease and Alzheimer's disease. Mn neurotoxicity also affects several neurotransmitter systems including dopaminergic, cholinergic and GABAergic. The mechanisms of Mn neurotoxicity are still being elucidated. AIM The review will highlight a potential role for calcium signaling molecules in the mechanisms of Mn neurotoxicity. CONCLUSION Ca2+ regulation influences the neurodegenerative process and there is possible role for perturbed calcium signaling in Mn neurotoxicity. Mechanisms implicated in Mn-induced neurodegeneration include oxidative stress, generation of free radicals, and apoptosis. These are influenced by mitochondrial integrity which can be dependent on intracellular Ca2+ homeostasis. Nevertheless, further elucidation of the direct effects of calcium signaling dysfunction and calcium-binding proteins activities in Mn neurotoxicity is required.
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Affiliation(s)
- Omamuyovwi M Ijomone
- The Neuro- Lab, Department of Human Anatomy, Federal University of Technology Akure, Ondo, Nigeria.
| | - Oritoke M Aluko
- Department of Physiology, Federal University of Technology Akure, Ondo, Nigeria
| | - Comfort O A Okoh
- The Neuro- Lab, Department of Human Anatomy, Federal University of Technology Akure, Ondo, Nigeria
| | - Airton Cunha Martins
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, United States.
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Yang W, Tan P, Fu X, Hong L. Prediction of amyloid aggregation rates by machine learning and feature selection. J Chem Phys 2019; 151:084106. [PMID: 31470712 DOI: 10.1063/1.5113848] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A novel data-based machine learning algorithm for predicting amyloid aggregation rates is reported in this paper. Based on a highly nonlinear projection from 16 intrinsic features of a protein and 4 extrinsic features of the environment to the protein aggregation rate, a feedforward fully connected neural network (FCN) with one hidden layer is trained on a dataset composed of 21 different kinds of amyloid proteins and tested on 4 rest proteins. FCN shows a much better performance than traditional algorithms, such as multivariable linear regression and support vector regression, with an average accuracy higher than 90%. Furthermore, by the correlation analysis and the principal component analysis, seven key features, folding energy, HP patterns for helix, sheet and helices cross membrane, pH, ionic strength, and protein concentration, are shown to constitute a minimum feature set for characterizing the amyloid aggregation kinetics.
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Affiliation(s)
- Wuyue Yang
- Zhou Pei-Yuan Center for Applied Mathematics, Tsinghua University, Beijing 100084, China
| | - Pengzhen Tan
- Zhou Pei-Yuan Center for Applied Mathematics, Tsinghua University, Beijing 100084, China
| | - Xianjun Fu
- Institute for Literature and Culture of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Liu Hong
- Zhou Pei-Yuan Center for Applied Mathematics, Tsinghua University, Beijing 100084, China
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40
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Metal binding to the amyloid-β peptides in the presence of biomembranes: potential mechanisms of cell toxicity. J Biol Inorg Chem 2019; 24:1189-1196. [PMID: 31562546 DOI: 10.1007/s00775-019-01723-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 09/10/2019] [Indexed: 12/18/2022]
Abstract
The amyloid-β (Aβ) peptides are key molecules in Alzheimer's disease (AD) pathology. They interact with cellular membranes, and can bind metal ions outside the membrane. Certain oligomeric Aβ aggregates are known to induce membrane perturbations and the structure of these oligomers-and their membrane-perturbing effects-can be modulated by metal ion binding. If the bound metal ions are redox active, as e.g., Cu and Fe ions are, they will generate harmful reactive oxygen species (ROS) just outside the membrane surface. Thus, the membrane damage incurred by toxic Aβ oligomers is likely aggravated when redox-active metal ions are present. The combined interactions between Aβ oligomers, metal ions, and biomembranes may be responsible for at least some of the neuronal death in AD patients.
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Martins AC, Morcillo P, Ijomone OM, Venkataramani V, Harrison FE, Lee E, Bowman AB, Aschner M. New Insights on the Role of Manganese in Alzheimer's Disease and Parkinson's Disease. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E3546. [PMID: 31546716 PMCID: PMC6801377 DOI: 10.3390/ijerph16193546] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/19/2019] [Accepted: 09/20/2019] [Indexed: 12/11/2022]
Abstract
Manganese (Mn) is an essential trace element that is naturally found in the environment and is necessary as a cofactor for many enzymes and is important in several physiological processes that support development, growth, and neuronal function. However, overexposure to Mn may induce neurotoxicity and may contribute to the development of Alzheimer's disease (AD) and Parkinson's disease (PD). The present review aims to provide new insights into the involvement of Mn in the etiology of AD and PD. Here, we discuss the critical role of Mn in the etiology of these disorders and provide a summary of the proposed mechanisms underlying Mn-induced neurodegeneration. In addition, we review some new therapy options for AD and PD related to Mn overload.
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Affiliation(s)
- Airton Cunha Martins
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA (P.M.)
| | - Patricia Morcillo
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA (P.M.)
| | - Omamuyovwi Meashack Ijomone
- Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology Akure, Akure 340252, Nigeria;
| | - Vivek Venkataramani
- Department of Hematology and Medical Oncology and Institute of Pathology, University Medical Center Göttingen (UMG), 37075 Göttingen, Germany;
| | - Fiona Edith Harrison
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA;
| | - Eunsook Lee
- Department of Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32301, USA;
| | - Aaron Blaine Bowman
- School of Health Sciences, Purdue University, West Lafayette, IN 47907-2051, USA;
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA (P.M.)
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42
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Yang GJ, Liu H, Ma DL, Leung CH. Rebalancing metal dyshomeostasis for Alzheimer's disease therapy. J Biol Inorg Chem 2019; 24:1159-1170. [PMID: 31486954 DOI: 10.1007/s00775-019-01712-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 07/29/2019] [Indexed: 12/26/2022]
Abstract
Alzheimer's disease (AD) is a type of neurodegenerative malady that is associated with the accumulation of amyloid plaques. Metal ions are critical for the development and upkeep of brain activity, but metal dyshomeostasis can contribute to the development of neurodegenerative diseases, including AD. This review highlights the association between metal dyshomeostasis and AD pathology, the feasibility of rebalancing metal homeostasis as a therapeutic strategy for AD, and a survey of current drugs that action via rebalancing metal homeostasis. Finally, we discuss the challenges that should be overcome by researchers in the future to enable the practical use of metal homeostasis rebalancing agents for clinical application.
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Affiliation(s)
- Guan-Jun Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, 999078, Macau SAR, China
| | - Hao Liu
- Department of Chemistry, Hong Kong Baptist University, Kowloon, 999077, Hong Kong SAR, China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon, 999077, Hong Kong SAR, China.
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, 999078, Macau SAR, China.
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43
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Lin Y, Sahoo BR, Ozawa D, Kinoshita M, Kang J, Lim MH, Okumura M, Huh YH, Moon E, Jang JH, Lee HJ, Ryu KY, Ham S, Won HS, Ryu KS, Sugiki T, Bang JK, Hoe HS, Fujiwara T, Ramamoorthy A, Lee YH. Diverse Structural Conversion and Aggregation Pathways of Alzheimer's Amyloid-β (1-40). ACS NANO 2019; 13:8766-8783. [PMID: 31310506 DOI: 10.1021/acsnano.9b01578] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Complex amyloid aggregation of amyloid-β (1-40) (Aβ1-40) in terms of monomer structures has not been fully understood. Herein, we report the microscopic mechanism and pathways of Aβ1-40 aggregation with macroscopic viewpoints through tuning its initial structure and solubility. Partial helical structures of Aβ1-40 induced by low solvent polarity accelerated cytotoxic Aβ1-40 amyloid fibrillation, while predominantly helical folds did not aggregate. Changes in the solvent polarity caused a rapid formation of β-structure-rich protofibrils or oligomers via aggregation-prone helical structures. Modulation of the pH and salt concentration transformed oligomers to protofibrils, which proceeded to amyloid formation. We reveal diverse molecular mechanisms underlying Aβ1-40 aggregation with conceptual energy diagrams and propose that aggregation-prone partial helical structures are key to inducing amyloidogenesis. We demonstrate that context-dependent protein aggregation is comprehensively understood using the macroscopic phase diagram, which provides general insights into differentiation of amyloid formation and phase separation from unfolded and folded structures.
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Affiliation(s)
- Yuxi Lin
- Department of Chemistry , Sookmyung Women's University , Cheongpa-ro 47-gil 100 , Yongsan-gu, Seoul 04310 , South Korea
| | - Bikash R Sahoo
- Biophysics Program and Department of Chemistry, Biomedical Engineering, and Macromolecular Science and Engineering , University of Michigan , Ann Arbor , Michigan 48109-1055 , United States
| | - Daisaku Ozawa
- Department of Neurotherapeutics , Osaka University Graduate School of Medicine , 2-2 Yamadaoka , Suita , Osaka 565-0871 , Japan
| | - Misaki Kinoshita
- Frontier Research Institute for Interdisciplinary Sciences , Tohoku University , 6-3 Aramaki-Aza-Aoba , Aoba-ku, Sendai 980-8578 , Japan
| | - Juhye Kang
- Department of Chemistry , Korea Advanced Institute of Science and Technology , Daejeon 34141 , South Korea
- Department of Chemistry , Ulsan National Institute of Science and Technology , Ulsan 44919 , South Korea
| | - Mi Hee Lim
- Department of Chemistry , Korea Advanced Institute of Science and Technology , Daejeon 34141 , South Korea
| | - Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences , Tohoku University , 6-3 Aramaki-Aza-Aoba , Aoba-ku, Sendai 980-8578 , Japan
| | | | | | | | - Hyun-Ju Lee
- Department of Neural Development and Disease , Korea Brain Research Institute , 61 Cheomdan-ro , Dong-gu, Daegu 41068 , South Korea
| | - Ka-Young Ryu
- Department of Neural Development and Disease , Korea Brain Research Institute , 61 Cheomdan-ro , Dong-gu, Daegu 41068 , South Korea
| | - Sihyun Ham
- Department of Chemistry , Sookmyung Women's University , Cheongpa-ro 47-gil 100 , Yongsan-gu, Seoul 04310 , South Korea
| | - Hyung-Sik Won
- Department of Biotechnology, Research Institute and College of Biomedical and Health Science , Konkuk University , Chungju , Chungbuk 27478 , South Korea
| | | | - Toshihiko Sugiki
- Institute for Protein Research , Osaka University , Yamadaoka 3-2 , Suita , Osaka 565-0871 , Japan
| | | | - Hyang-Sook Hoe
- Department of Neural Development and Disease , Korea Brain Research Institute , 61 Cheomdan-ro , Dong-gu, Daegu 41068 , South Korea
| | - Toshimichi Fujiwara
- Institute for Protein Research , Osaka University , Yamadaoka 3-2 , Suita , Osaka 565-0871 , Japan
| | - Ayyalusamy Ramamoorthy
- Biophysics Program and Department of Chemistry, Biomedical Engineering, and Macromolecular Science and Engineering , University of Michigan , Ann Arbor , Michigan 48109-1055 , United States
| | - Young-Ho Lee
- Institute for Protein Research , Osaka University , Yamadaoka 3-2 , Suita , Osaka 565-0871 , Japan
- Bio-Analytical Science , University of Science and Technology , Daejeon 34113 , South Korea
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44
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Impact of pyridine-2-carboxaldehyde-derived aroylhydrazones on the copper-catalyzed oxidation of the M112A PrP103–112 mutant fragment. J Biol Inorg Chem 2019; 24:1231-1244. [DOI: 10.1007/s00775-019-01700-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 07/23/2019] [Indexed: 12/30/2022]
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45
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Girigoswami A, Ramalakshmi M, Akhtar N, Metkar SK, Girigoswami K. ZnO Nanoflower petals mediated amyloid degradation - An in vitro electrokinetic potential approach. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:169-178. [DOI: 10.1016/j.msec.2019.03.086] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/25/2019] [Accepted: 03/24/2019] [Indexed: 10/27/2022]
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46
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Stefaniak E, Bal W. Cu II Binding Properties of N-Truncated Aβ Peptides: In Search of Biological Function. Inorg Chem 2019; 58:13561-13577. [PMID: 31304745 DOI: 10.1021/acs.inorgchem.9b01399] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
As life expectancy increases, the number of people affected by progressive and irreversible dementia, Alzheimer's Disease (AD), is predicted to grow. No drug designs seem to be working in humans, apparently because the origins of AD have not been identified. Invoking amyloid cascade, metal ions, and ROS production hypothesis of AD, herein we share our point of view on Cu(II) binding properties of Aβ4-x, the most prevalent N-truncated Aβ peptide, currently known as the main constituent of amyloid plaques. The capability of Aβ4-x to rapidly take over copper from previously tested Aβ1-x peptides and form highly stable complexes, redox unreactive and resistant to copper exchange reactions, prompted us to propose physiological roles for these peptides. We discuss the new findings on the reactivity of Cu(II)Aβ4-x with coexisting biomolecules in the context of synaptic cleft; we suggest that the role of Aβ4-x peptides is to quench Cu(II) toxicity in the brain and maintain neurotransmission.
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Affiliation(s)
- Ewelina Stefaniak
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences , Pawińskiego 5a , 02-106 Warsaw , Poland
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences , Pawińskiego 5a , 02-106 Warsaw , Poland
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47
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Mahan B, Moynier F, Jørgensen AL, Habekost M, Siebert J. Examining the homeostatic distribution of metals and Zn isotopes in Göttingen minipigs. Metallomics 2019; 10:1264-1281. [PMID: 30128473 DOI: 10.1039/c8mt00179k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The role of metals in biologic systems is manifold, and understanding their behaviour in bodily processes, especially those relating to neurodegenerative diseases, is at the forefront of medical science. The function(s) of metals - such as the transition metals - and their utility in both the diagnosis and treatment of diseases in human beings, is often examined via the characterization of their distribution in animal models, with porcine models considered exceptional proxies for human physiology. To this end, we have investigated the homeostatic distribution of numerous metals (Mg, K, Ca, Mn, Fe, Cu, Zn, Rb and Mo), the non-metal P, and Zn isotopes in the organs and blood (red blood cells, plasma) of Göttingen minipigs. These results represent the first set of data outlining the homeostatic distribution of metals and Zn isotopes in Göttingen minipigs, and indicate a relatively homogeneous distribution of alkali/alkaline earth metals and P among the organs, with generally lower levels in the blood, while indicating more heterogeneous and systematic abundance patterns for transition metals. In general, the distribution of all elements analysed is similar to that found in humans. Our elemental abundance data, together with data reported for humans in the literature, suggest that element-to-element ratios, e.g. Cu/Mg, show potential as simple diagnostics for diseases such as Alzheimer's. Isotopic data indicate a heterogeneous distribution of Zn isotopes among the organs and blood, with the liver, heart and brain being the most depleted in heavy Zn isotopes, and the blood the most enriched, consistent with observations in other animal models and humans. The Zn isotopic composition of Göttingen minipigs displays a systematic offset towards lighter δ66Zn values relative to mice and sheep models, suggesting physiology that is more closely aligned with that of humans. Cumulatively, these observations strongly suggest that Göttingen minipigs are an excellent animal model for translational research involving metals, and these data provide a strong foundation for future research.
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Affiliation(s)
- Brandon Mahan
- Institut de Physique du Globe de Paris, Université Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7154, 1 rue Jussieu, 75238 Paris Cedex 05, France
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48
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Kuo YC, Rajesh R. Challenges in the treatment of Alzheimer’s disease: recent progress and treatment strategies of pharmaceuticals targeting notable pathological factors. Expert Rev Neurother 2019; 19:623-652. [DOI: 10.1080/14737175.2019.1621750] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yung-Chih Kuo
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, Taiwan, Republic of China
| | - Rajendiran Rajesh
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, Taiwan, Republic of China
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49
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Zhu Z, Yang T, Zhang L, Liu L, Yin E, Zhang C, Guo Z, Xu C, Wang X. Inhibiting Aβ toxicity in Alzheimer's disease by a pyridine amine derivative. Eur J Med Chem 2019; 168:330-339. [DOI: 10.1016/j.ejmech.2019.02.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/07/2019] [Accepted: 02/17/2019] [Indexed: 12/13/2022]
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50
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Jia L, Wang W, Sang J, Wei W, Zhao W, Lu F, Liu F. Amyloidogenicity and Cytotoxicity of a Recombinant C-Terminal His 6-Tagged Aβ 1-42. ACS Chem Neurosci 2019; 10:1251-1262. [PMID: 30537813 DOI: 10.1021/acschemneuro.8b00333] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aggregation of amyloid β peptide (Aβ) is closely associated with the occurrence and development of Alzheimer's disease (AD). Reproducible and detailed studies on the aggregation kinetics and structure of various aggregates have been conducted using recombinant Aβ peptides. While the His6-tag is commonly used in the purification of recombinant proteins due to its great simplicity and affinity, there is little information on the aggregation of His6-tagged Aβ and its corresponding cytotoxicity. Moreover, it is also unclear whether there is an effect of the His6-tag on the amyloidogenicity and cytotoxicity of recombinant Aβ1-42. Herein, a method to express and purify a mutant C-terminally His6-tagged Aβ1-42 (named as Aβ1-42-His6) from Escherichia coli was described. Aβ1-42-His6 aggregated into β-sheet-rich fibrils as shown by thioflavin T fluorescence, atomic force microscopy and circular dichroism spectroscopy. Moreover, the fibrillar recombinant Aβ1-42-His6 showed strong toxicity toward PC12 cells in vitro. Molecular dynamics simulations revealed that the His6-tag contributed little to the secondary structure and intermolecular interactions, including hydrophobic interactions, salt bridges, and hydrogen bonding of the fibrillar pentamer of Aβ1-42. This highlights the biological importance of modification on the molecular structure of Aβ. Thus, the easily purified high-quality Aβ1-42-His6 offers great advantages for screening aggregation inhibitors or in vitro confirmation of rationally designed drugs for the treatment of AD.
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Affiliation(s)
- Longgang Jia
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Wenjuan Wang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Jingcheng Sang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Wei Wei
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Wenping Zhao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Fuping Lu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Fufeng Liu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
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