1
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Wu J, Mao M, Yang J, Li K, Deng P, Zhong J, Wu X, Cheng Y. Development of an 18F-labeled azobenzothiazole tracer for α-synuclein aggregates in the brain. Org Biomol Chem 2024. [PMID: 38768281 DOI: 10.1039/d4ob00492b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Nuclear imaging of aggregated α-synuclein pathology is an urgent clinical need for Parkinson's disease, yet promising tracers for brain α-synuclein aggregates are still rare. In this work, a class of compact benzothiazole derivatives was synthesized and evaluated for α-synuclein aggregates. Among them, azobenzothiazoles exhibited specific and selective detection of α-synuclein aggregates under physiological conditions. Fluoro-pegylated azobenzothiazole NN-F further demonstrated high-affinity binding to α-synuclein aggregates and efficient 18F-radiolabeling via nucleophilic displacement of a tosyl precursor. [18F]NN-F was stable in plasma in vitro and showed efficient brain uptake with little defluorination in vivo.
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Affiliation(s)
- Jiajun Wu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Meiting Mao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Jie Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Kexin Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Pengxin Deng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Jing Zhong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Xiaoai Wu
- Department of Nuclear Medicine, Laboratory of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Yan Cheng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
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2
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Umar M, Rehman Y, Ambreen S, Mumtaz SM, Shaququzzaman M, Alam MM, Ali R. Innovative approaches to Alzheimer's therapy: Harnessing the power of heterocycles, oxidative stress management, and nanomaterial drug delivery system. Ageing Res Rev 2024; 97:102298. [PMID: 38604453 DOI: 10.1016/j.arr.2024.102298] [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: 02/01/2024] [Revised: 03/10/2024] [Accepted: 04/05/2024] [Indexed: 04/13/2024]
Abstract
Alzheimer's disease (AD) presents a complex pathology involving amyloidogenic proteolysis, neuroinflammation, mitochondrial dysfunction, and cholinergic deficits. Oxidative stress exacerbates AD progression through pathways like macromolecular peroxidation, mitochondrial dysfunction, and metal ion redox potential alteration linked to amyloid-beta (Aβ). Despite limited approved medications, heterocyclic compounds have emerged as promising candidates in AD drug discovery. This review highlights recent advancements in synthetic heterocyclic compounds targeting oxidative stress, mitochondrial dysfunction, and neuroinflammation in AD. Additionally, it explores the potential of nanomaterial-based drug delivery systems to overcome challenges in AD treatment. Nanoparticles with heterocyclic scaffolds, like polysorbate 80-coated PLGA and Resveratrol-loaded nano-selenium, show improved brain transport and efficacy. Micellar CAPE and Melatonin-loaded nano-capsules exhibit enhanced antioxidant properties, while a tetra hydroacridine derivative (CHDA) combined with nano-radiogold particles demonstrates promising acetylcholinesterase inhibition without toxicity. This comprehensive review underscores the potential of nanotechnology-driven drug delivery for optimizing the therapeutic outcomes of novel synthetic heterocyclic compounds in AD management. Furthermore, the inclusion of various promising heterocyclic compounds with detailed ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) data provides valuable insights for planning the development of novel drug delivery treatments for AD.
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Affiliation(s)
- Mohammad Umar
- Department of Pharmaceutical Chemistry, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar, New Delhi 110017, India
| | - Yasir Rehman
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi 110062, India
| | - Subiya Ambreen
- Department of Pharmaceutical Chemistry, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar, New Delhi 110017, India
| | - Sayed Md Mumtaz
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi 110062, India
| | - Mohd Shaququzzaman
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi 110062, India
| | - Mohammad Mumtaz Alam
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi 110062, India
| | - Ruhi Ali
- Department of Pharmaceutical Chemistry, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar, New Delhi 110017, India.
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3
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Chisholm TS, Hunter CA. A closer look at amyloid ligands, and what they tell us about protein aggregates. Chem Soc Rev 2024; 53:1354-1374. [PMID: 38116736 DOI: 10.1039/d3cs00518f] [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: 12/21/2023]
Abstract
The accumulation of amyloid fibrils is characteristic of neurodegenerative diseases such as Alzheimer's disease (AD) and Parkinson's disease. Detecting these fibrils with fluorescent or radiolabelled ligands is one strategy for diagnosing and better understanding these diseases. A vast number of amyloid-binding ligands have been reported in the literature as a result. To obtain a better understanding of how amyloid ligands bind, we have compiled a database of 3457 experimental dissociation constants for 2076 unique amyloid-binding ligands. These ligands target Aβ, tau, or αSyn fibrils, as well as relevant biological samples including AD brain homogenates. From this database significant variation in the reported dissociation constants of ligands was found, possibly due to differences in the morphology of the fibrils being studied. Ligands were also found to bind to Aβ(1-40) and Aβ(1-42) fibrils with similar affinities, whereas a greater difference was found for binding to Aβ and tau or αSyn fibrils. Next, the binding of ligands to fibrils was shown to be largely limited by the hydrophobic effect. Some Aβ ligands do not fit into this hydrophobicity-limited model, suggesting that polar interactions can play an important role when binding to this target. Finally several binding site models were outlined for amyloid fibrils that describe what ligands target what binding sites. These models provide a foundation for interpreting and designing site-specific binding assays.
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Affiliation(s)
- Timothy S Chisholm
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1 EW, UK.
| | - Christopher A Hunter
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1 EW, UK.
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4
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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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5
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Capponi PC, Mari M, Ferrari E, Asti M. Radiolabeled Chalcone Derivatives as Potential Radiotracers for β-Amyloid Plaques Imaging. Molecules 2023; 28:molecules28073233. [PMID: 37049995 PMCID: PMC10096019 DOI: 10.3390/molecules28073233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/09/2023] Open
Abstract
Natural products often provide a pool of pharmacologically relevant precursors for the development of various drug-related molecules. In this review, the research performed on some radiolabeled chalcone derivatives characterized by the presence of the α-β unsaturated carbonyl functional group as potential radiotracers for the imaging of β-amyloids plaques will be summarized. Chalcones’ structural modifications and chemical approaches which allow their radiolabeling with the most common SPECT (Single Photon Emission Computed Tomography) and PET (Positron Emission Tomography) radionuclides will be described, as well as the state of the art regarding their in vitro binding affinity and in vivo biodistribution and pharmacokinetics in preclinical studies. Moreover, an explanation of the rationale behind their potential utilization as probes for Alzheimer’s disease in nuclear medicine applications will be provided.
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Affiliation(s)
- Pier Cesare Capponi
- Radiopharmaceutical Chemistry Section, Nuclear Medicine Unit, AUSL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42122 Reggio Emilia, Italy
| | - Matteo Mari
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
| | - Erika Ferrari
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
| | - Mattia Asti
- Radiopharmaceutical Chemistry Section, Nuclear Medicine Unit, AUSL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42122 Reggio Emilia, Italy
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6
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Puentes-Díaz N, Chaparro D, Morales-Morales D, Flores-Gaspar A, Alí-Torres J. Role of Metal Cations of Copper, Iron, and Aluminum and Multifunctional Ligands in Alzheimer's Disease: Experimental and Computational Insights. ACS OMEGA 2023; 8:4508-4526. [PMID: 36777601 PMCID: PMC9909689 DOI: 10.1021/acsomega.2c06939] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/30/2022] [Indexed: 05/15/2023]
Abstract
Alzheimer's disease (AD) is the most common form of dementia, affecting millions of people around the world. Even though the causes of AD are not completely understood due to its multifactorial nature, some neuropathological hallmarks of its development have been related to the high concentration of some metal cations. These roles include the participation of these metal cations in the production of reactive oxygen species, which have been involved in neuronal damage. In order to avoid the increment in the oxidative stress, multifunctional ligands used to coordinate these metal cations have been proposed as a possible treatment to AD. In this review, we present the recent advances in experimental and computational works aiming to understand the role of two redox active and essential transition-metal cations (Cu and Fe) and one nonbiological metal (Al) and the recent proposals on the development of multifunctional ligands to stop or revert the damaging effects promoted by these metal cations.
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Affiliation(s)
- Nicolás Puentes-Díaz
- Departamento
de Química, Universidad Nacional
de Colombia−Sede Bogotá, Bogotá 11301, Colombia
| | - Diego Chaparro
- Departamento
de Química, Universidad Nacional
de Colombia−Sede Bogotá, Bogotá 11301, Colombia
- Departamento
de Química, Universidad Militar Nueva
Granada, Cajicá 250240, Colombia
| | - David Morales-Morales
- Instituto
de Química, Universidad Nacional Autónoma de México,
Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, México
| | - Areli Flores-Gaspar
- Departamento
de Química, Universidad Militar Nueva
Granada, Cajicá 250240, Colombia
- Areli Flores-Gaspar − Departamento de Química,
Universidad Militar Nueva
Granada, Cajicá, 250247, Colombia.
| | - Jorge Alí-Torres
- Departamento
de Química, Universidad Nacional
de Colombia−Sede Bogotá, Bogotá 11301, Colombia
- Jorge Alí-Torres − Departamento de Química, Universidad Nacional de
Colombia, Sede Bogotá,11301, Bogotá, Colombia.
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7
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Kabir ER, Chowdhury NM, Yasmin H, Kabir MT, Akter R, Perveen A, Ashraf GM, Akter S, Rahman MH, Sweilam SH. Unveiling the Potential of Polyphenols as Anti-Amyloid Molecules in Alzheimer's Disease. Curr Neuropharmacol 2023; 21:787-807. [PMID: 36221865 PMCID: PMC10227919 DOI: 10.2174/1570159x20666221010113812] [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: 02/23/2022] [Revised: 08/03/2022] [Accepted: 08/15/2022] [Indexed: 11/22/2022] Open
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disease that mostly affects the elderly population. Mechanisms underlying AD pathogenesis are yet to be fully revealed, but there are several hypotheses regarding AD. Even though free radicals and inflammation are likely to be linked with AD pathogenesis, still amyloid-beta (Aβ) cascade is the dominant hypothesis. According to the Aβ hypothesis, a progressive buildup of extracellular and intracellular Aβ aggregates has a significant contribution to the AD-linked neurodegeneration process. Since Aβ plays an important role in the etiology of AD, therefore Aβ-linked pathways are mainly targeted in order to develop potential AD therapies. Accumulation of Aβ plaques in the brains of AD individuals is an important hallmark of AD. These plaques are mainly composed of Aβ (a peptide of 39-42 amino acids) aggregates produced via the proteolytic cleavage of the amyloid precursor protein. Numerous studies have demonstrated that various polyphenols (PPHs), including cyanidins, anthocyanins, curcumin, catechins and their gallate esters were found to markedly suppress Aβ aggregation and prevent the formation of Aβ oligomers and toxicity, which is further suggesting that these PPHs might be regarded as effective therapeutic agents for the AD treatment. This review summarizes the roles of Aβ in AD pathogenesis, the Aβ aggregation pathway, types of PPHs, and distribution of PPHs in dietary sources. Furthermore, we have predominantly focused on the potential of food-derived PPHs as putative anti-amyloid drugs.
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Affiliation(s)
- Eva Rahman Kabir
- School of Pharmacy, BRAC University, 66 Mohakhali, Dhaka 1212, Bangladesh
| | | | - Hasina Yasmin
- School of Pharmacy, BRAC University, 66 Mohakhali, Dhaka 1212, Bangladesh
| | - Md. Tanvir Kabir
- School of Pharmacy, BRAC University, 66 Mohakhali, Dhaka 1212, Bangladesh
| | - Rokeya Akter
- Department of Pharmacy, Jagannath University, Dhaka, Bangladesh
| | - Asma Perveen
- Glocal School of Life Sciences, Glocal University, Mirzapur Pole, Saharanpur, Uttar Pradesh, India
| | - Ghulam Md. Ashraf
- Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Shamima Akter
- Department of Bioinformatics and Computational Biology, George Mason University, Fairfax, Virginia 22030, USA
| | | | - Sherouk Hussein Sweilam
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Egyptian Russian University, Cairo-Suez Road, Badr City 11829, Egypt
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8
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Björk L, Bäck M, Lantz L, Ghetti B, Vidal R, Klingstedt T, Nilsson KPR. Proteophenes - Amino Acid Functionalized Thiophene-based Fluorescent Ligands for Visualization of Protein Deposits in Tissue Sections with Alzheimer's Disease Pathology. Chemistry 2022; 28:e202201557. [PMID: 35950816 PMCID: PMC9643645 DOI: 10.1002/chem.202201557] [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: 05/19/2022] [Indexed: 01/11/2023]
Abstract
Protein deposits composed of specific proteins or peptides are associated with several neurodegenerative diseases and fluorescent ligands able to detect these pathological hallmarks are vital. Here, we report the synthesis of a class of thiophene-based ligands, denoted proteophenes, with different amino acid side-chain functionalities along the conjugated backbone, which display selectivity towards specific disease-associated protein aggregates in tissue sections with Alzheimer's disease (AD) pathology. The selectivity of the ligands towards AD associated pathological hallmarks, such as aggregates of the amyloid-β (Aβ) peptide or tau filamentous inclusions, was highly dependent on the chemical nature of the amino acid functionality, as well as on the location of the functionality along the pentameric thiophene backbone. Finally, the concept of synthesizing donor-acceptor-donor proteophenes with distinct photophysical properties was shown. Our findings provide the structural and functional basis for the development of new thiophene-based ligands that can be utilized for optical assignment of different aggregated proteinaceous species in tissue sections.
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Affiliation(s)
- Linnea Björk
- Department of PhysicsChemistry and BiologyLinköping University581 83LinköpingSweden
| | - Marcus Bäck
- Department of PhysicsChemistry and BiologyLinköping University581 83LinköpingSweden
| | - Linda Lantz
- Department of PhysicsChemistry and BiologyLinköping University581 83LinköpingSweden
| | - Bernardino Ghetti
- Department of Pathology and Laboratory MedicineIndiana University School of MedicineIndianapolis46202IndianaUSA
| | - Ruben Vidal
- Department of Pathology and Laboratory MedicineIndiana University School of MedicineIndianapolis46202IndianaUSA
| | - Therése Klingstedt
- Department of PhysicsChemistry and BiologyLinköping University581 83LinköpingSweden
| | - K. Peter R. Nilsson
- Department of PhysicsChemistry and BiologyLinköping University581 83LinköpingSweden
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9
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Kallinen A, Kassiou M. Tracer development for PET imaging of proteinopathies. Nucl Med Biol 2022; 114-115:108-120. [PMID: 35487833 DOI: 10.1016/j.nucmedbio.2022.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/17/2022] [Accepted: 04/04/2022] [Indexed: 12/27/2022]
Abstract
This review outlines small molecule radiotracers developed for positron emission tomography (PET) imaging of proteinopathies, neurodegenerative diseases characterised by accumulation of malformed proteins, over the last two decades with the focus on radioligands that have progressed to clinical studies. Introduction provides a short summary of proteinopathy targets used for PET imaging, including vastly studied proteins Aβ and tau and emerging α-synuclein. In the main section, clinically relevant Aβ and tau radioligand classes and their properties are discussed, including an overview of lead compounds and radioligand candidates studied as α-synuclein imaging agents in the early discovery and preclinical development phase. Lastly, the specific challenges and future directions in proteinopathy radioligand development are summarized.
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Affiliation(s)
- Annukka Kallinen
- Garvan Institute of Medical Research, 384 Victoria St, NSW 2010, Australia.
| | - Michael Kassiou
- School of Chemistry, The University of Sydney, NSW 2006, Australia
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10
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Beach TG. A History of Senile Plaques: From Alzheimer to Amyloid Imaging. J Neuropathol Exp Neurol 2022; 81:387-413. [PMID: 35595841 DOI: 10.1093/jnen/nlac030] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Senile plaques have been studied in postmortem brains for more than 120 years and the resultant knowledge has not only helped us understand the etiology and pathogenesis of Alzheimer disease (AD), but has also pointed to possible modes of prevention and treatment. Within the last 15 years, it has become possible to image plaques in living subjects. This is arguably the single greatest advance in AD research since the identification of the Aβ peptide as the major plaque constituent. The limitations and potentialities of amyloid imaging are still not completely clear but are perhaps best glimpsed through the perspective gained from the accumulated postmortem histological studies. The basic morphological classification of plaques into neuritic, cored and diffuse has been supplemented by sophisticated immunohistochemical and biochemical analyses and increasingly detailed mapping of plaque brain distribution. Changes in plaque classification and staging have in turn contributed to changes in the definition and diagnostic criteria for AD. All of this information continues to be tested by clinicopathological correlations and it is through the insights thereby gained that we will best be able to employ the powerful tool of amyloid imaging.
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Affiliation(s)
- Thomas G Beach
- From the Civin Laboratory for Neuropathology, Banner Sun Health Research Institute, Sun City, Arizona, USA
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11
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Cui X, Ying Z, Ying X, Jia L, Yang G. Three new alkaloids from Portulaca oleracea L. and their bioactivities. Fitoterapia 2021; 154:105020. [PMID: 34418491 DOI: 10.1016/j.fitote.2021.105020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 11/24/2022]
Abstract
Three novel alkaloids, named oleracone L (1), portulacatone B (2), and portulacatal (3), were isolated from P. oleracea L.. The structures were determined using UV, IR, 1D and 2D NMR spectroscopy and UHPLC-ESI-QTOF/MS. The three compounds in a dose-dependent manner significantly reduced the secretion of IL-1β in the lipopolysaccharide-stimulated macrophages RAW 264.7 cell culture supernatant, moreover, exhibited the anticholinesterase activities.
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Affiliation(s)
- Xinyu Cui
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Zheming Ying
- School of The First Clinic, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China
| | - Xixiang Ying
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China.
| | - Lianqun Jia
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China
| | - Guanlin Yang
- School of The First Clinic, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China.
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12
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Baumer KM, Cook CD, Zahler CT, Beard AA, Chen Z, Koone JC, Dashnaw CM, Villacob RA, Solouki T, Wood JL, Borchelt DR, Shaw BF. Supercharging Prions via Amyloid‐Selective Lysine Acetylation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103548] [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)
- Katelyn M. Baumer
- Department of Chemistry and Biochemistry Baylor University Waco TX USA
| | | | - Collin T. Zahler
- Department of Chemistry and Biochemistry Baylor University Waco TX USA
| | | | - Zhijuan Chen
- Department of Neuroscience University of Florida Gainesville FL USA
| | - Jordan C. Koone
- Department of Chemistry and Biochemistry Baylor University Waco TX USA
| | - Chad M. Dashnaw
- Department of Chemistry and Biochemistry Baylor University Waco TX USA
| | - Raul A. Villacob
- Department of Chemistry and Biochemistry Baylor University Waco TX USA
| | - Touradj Solouki
- Department of Chemistry and Biochemistry Baylor University Waco TX USA
| | - John L. Wood
- Department of Chemistry and Biochemistry Baylor University Waco TX USA
| | | | - Bryan F. Shaw
- Department of Chemistry and Biochemistry Baylor University Waco TX USA
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13
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Baumer KM, Cook CD, Zahler CT, Beard AA, Chen Z, Koone JC, Dashnaw CM, Villacob RA, Solouki T, Wood JL, Borchelt DR, Shaw BF. Supercharging Prions via Amyloid-Selective Lysine Acetylation. Angew Chem Int Ed Engl 2021; 60:15069-15079. [PMID: 33876528 DOI: 10.1002/anie.202103548] [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] [Received: 03/11/2021] [Indexed: 11/10/2022]
Abstract
Repulsive electrostatic forces between prion-like proteins are a barrier against aggregation. In neuropharmacology, however, a prion's net charge (Z) is not a targeted parameter. Compounds that selectively boost prion Z remain unreported. Here, we synthesized compounds that amplified the negative charge of misfolded superoxide dismutase-1 (SOD1) by acetylating lysine-NH3 + in amyloid-SOD1, without acetylating native-SOD1. Compounds resembled a "ball and chain" mace: a rigid amyloid-binding "handle" (benzothiazole, stilbene, or styrylpyridine); an aryl ester "ball"; and a triethylene glycol chain connecting ball to handle. At stoichiometric excess, compounds acetylated up to 9 of 11 lysine per misfolded subunit (ΔZfibril =-8100 per 103 subunits). Acetylated amyloid-SOD1 seeded aggregation more slowly than unacetylated amyloid-SOD1 in vitro and organotypic spinal cord (these effects were partially due to compound binding). Compounds exhibited reactivity with other amyloid and non-amyloid proteins (e.g., fibrillar α-synuclein was peracetylated; serum albumin was partially acetylated; carbonic anhydrase was largely unacetylated).
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Affiliation(s)
- Katelyn M Baumer
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Christopher D Cook
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Collin T Zahler
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Alexandra A Beard
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Zhijuan Chen
- Department of Neuroscience, University of Florida, Gainesville, FL, USA
| | - Jordan C Koone
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Chad M Dashnaw
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Raul A Villacob
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Touradj Solouki
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - John L Wood
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - David R Borchelt
- Department of Neuroscience, University of Florida, Gainesville, FL, USA
| | - Bryan F Shaw
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
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14
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Nagashima N, Ozawa S, Furuta M, Oi M, Hori Y, Tomita T, Sohma Y, Kanai M. Catalytic photooxygenation degrades brain Aβ in vivo. SCIENCE ADVANCES 2021; 7:7/13/eabc9750. [PMID: 33762329 PMCID: PMC7990327 DOI: 10.1126/sciadv.abc9750] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
Protein degradation induced by small molecules by recruiting endogenous protein degradation systems, such as ubiquitin-proteasome systems, to disease-related proteins is an emerging concept to inhibit the function of undruggable proteins. Protein targets without reliable ligands and/or existing outside the cells where ubiquitin-proteasome systems do not exist, however, are beyond the scope of currently available protein degradation strategies. Here, we disclose photooxygenation catalyst 7 that permeates the blood-brain barrier and selectively and directly degrades an extracellular Alzheimer's disease-related undruggable protein, amyloid-β protein (Aβ). Key was the identification of a compact but orange color visible light-activatable chemical catalyst whose activity can be switched on/off according to its molecular mobility, thereby ensuring high selectivity for aggregated Aβ. Chemical catalyst-promoted protein degradation can be applied universally for attenuating extracellular amyloids and various pathogenic proteins and is thus a new entry to induced protein degradation strategies.
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Affiliation(s)
- Nozomu Nagashima
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shuta Ozawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masahiro Furuta
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Miku Oi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yukiko Hori
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Taisuke Tomita
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Youhei Sohma
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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15
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Shaikh S, Pavale G, Dhavan P, Singh P, Uparkar J, Vaidya SP, Jadhav BL, Ramana MMV. Design, synthesis and evaluation of dihydropyranoindole derivatives as potential cholinesterase inhibitors against Alzheimer's disease. Bioorg Chem 2021; 110:104770. [PMID: 33667902 DOI: 10.1016/j.bioorg.2021.104770] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/29/2021] [Accepted: 02/21/2021] [Indexed: 02/08/2023]
Abstract
A series of novel dihydropyranoindole derivatives containing sulphonamide group were designed, synthesized and evaluated for in-vitro anti-cholinesterase activity. The result showed that all the compounds exhibited potent acetylcholinesterase (AChE) activity (IC50 = 0.41-8.79 µM) while demonstrated moderate to good activity for butyrylcholinesterase (BuChE) (IC50 = 1.17-30.17 µM). The tested compounds exhibited selectivity towards AChE over BuChE. Compound 5o was most potent towards both AChE (IC50 = 0.41 µM) and BuChE (IC50 = 1.17 µM) when compared to standard galantamine and rivastigmine. Enzyme kinetics and molecular docking studies revealed that compound 5o shows mixed type inhibition and binds to peripheral anionic site (PAS) and the catalytic sites (CAS) of both the enzymes. Furthermore, cell viability studies were also performed against N2a cells along with neuroprotection studies against H2O2 in the same cell line. Antioxidant studies using DPPH radical and H2O2 were also performed which revealed that all compounds possessed some antioxidant activity. Also, DNA damage protection assay for compound 5o was performed implying that compound 5o was protective in nature. ADME studies were also performed which demonstrated good pharmacokinetics. These findings indicated that dihydropyranoindole derivatives could be possible drug lead in the search for new multifunctional AD drugs.
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Affiliation(s)
- Sarfaraz Shaikh
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400 098, India
| | - Ganesh Pavale
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400 098, India
| | - Pratik Dhavan
- Department of Life Sciences, University of Mumbai, Santacruz (E), Mumbai 400 098, India
| | - Pinky Singh
- Department of Microbiology, Haffkine Institute, Parel, Mumbai 400012, India
| | - Jasmin Uparkar
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400 098, India
| | - S P Vaidya
- Department of Microbiology, Haffkine Institute, Parel, Mumbai 400012, India
| | - B L Jadhav
- Department of Life Sciences, University of Mumbai, Santacruz (E), Mumbai 400 098, India
| | - M M V Ramana
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400 098, India.
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16
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Babu E, Bhuvaneswari J, Rajakumar K, Sathish V, Thanasekaran P. Non-conventional photoactive transition metal complexes that mediated sensing and inhibition of amyloidogenic aggregates. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213612] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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17
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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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18
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Lantz L, Shirani H, Klingstedt T, Nilsson KPR. Synthesis and Characterization of Thiophene-based Donor-Acceptor-Donor Heptameric Ligands for Spectral Assignment of Polymorphic Amyloid-β Deposits. Chemistry 2020; 26:7425-7432. [PMID: 32022335 PMCID: PMC7318160 DOI: 10.1002/chem.201905612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Indexed: 11/29/2022]
Abstract
Protein deposits are associated with many devastating diseases and fluorescent ligands able to visualize these pathological entities are essential. Here, we report the synthesis of thiophene‐based donor–acceptor–donor heptameric ligands that can be utilized for spectral assignment of distinct amyloid‐β (Aβ) aggregates, one of the pathological hallmarks in Alzheimer's disease. The ability of the ligands to selectively distinguish Aβ deposits was abolished when the chemical composition of the ligands was altered. Our findings provide the structural and functional basis for the development of new fluorescent ligands that can distinguish between aggregated proteinaceous species consisting of the same peptide or protein. In addition, such ligands might aid in interpreting the potential role of polymorphic Aβ deposits in the pathogenesis of Alzheimer's disease.
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Affiliation(s)
- Linda Lantz
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
| | - Hamid Shirani
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
| | - Therése Klingstedt
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
| | - K Peter R Nilsson
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
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19
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Chen WL, Ma ST, Chen YW, Chao YC, Chan AC, Tu LH, Liu WM. A Fluorogenic Molecule for Probing Islet Amyloid Using Flavonoid as a Scaffold Design. Biochemistry 2020; 59:1482-1492. [DOI: 10.1021/acs.biochem.0c00076] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei-Ling Chen
- Department of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan
| | - Shih-Ting Ma
- Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| | - Yun-Wen Chen
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Yen-Cheng Chao
- Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| | - Ai-Ci Chan
- Department of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan
| | - Ling-Hsien Tu
- Department of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan
| | - Wei-Min Liu
- Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan
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20
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Shaikh S, Dhavan P, Ramana MMV, Jadhav BL. Design, synthesis and evaluation of new chromone-derived aminophosphonates as potential acetylcholinesterase inhibitor. Mol Divers 2020; 25:811-825. [PMID: 32124162 DOI: 10.1007/s11030-020-10060-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 02/21/2020] [Indexed: 11/25/2022]
Abstract
A series of novel N-substituted α-aminophosphonates-bearing chromone moiety were synthesized and evaluated for acetylcholinesterase (AChE), butyrylcholinesterase (BuChE) activities and antioxidant properties. Porcine pancreatic lipase was employed as a catalyst. Inhibitory activity against AChE ranged between 0.103 and 5.781 µM, whereas for BuChE, activities ranged between 8.619 and 18.789 µM. The results show that among the various synthesized compounds, strongest AChE inhibition was found for the compound containing aliphatic amine analogs, while in case of BuChE, aromatic amines showed better activity as compared to aliphatic amines. Compound 4j was found to be the most potent inhibitor of AChE with an IC50 value of 0.103 ± 0.24 μM and inhibited AChE through mixed-type inhibition. Compound 4j was twofolds more potent than tacrine, 35-folds potent than galantamine and 50-folds potent than rivastigmine. Also, docking study revealed that compound 4j binds to both the peripheral anionic site and catalytic anionic site of AChE and BuChE. The antioxidant activities of synthesized compounds were performed against 2,2-diphenyl-1-picrylhydrazyl and hydrogen peroxide scavenging. DNA nicking activity of selected compounds also suggested that the compounds do not harm plasmid DNA pBR322. Compound 4j also showed significant DNA damage protection activity. Novel N-substituted α-aminophosphonates bearing chromone moiety were synthesized and evaluated for anti-acetylcholinesterase, anti-butyrylcholinesterase, antioxidant and DNA damage activities.
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Affiliation(s)
- Sarfaraz Shaikh
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai, 400 098, India
| | - Pratik Dhavan
- Department of Life Sciences, University of Mumbai, Santacruz (E), Mumbai, 400 098, India
| | - M M V Ramana
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai, 400 098, India.
| | - B L Jadhav
- Department of Life Sciences, University of Mumbai, Santacruz (E), Mumbai, 400 098, India
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21
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Shaikh S, Dhavan P, Pavale G, Ramana M, Jadhav B. Design, synthesis and evaluation of pyrazole bearing α-aminophosphonate derivatives as potential acetylcholinesterase inhibitors against Alzheimer’s disease. Bioorg Chem 2020; 96:103589. [DOI: 10.1016/j.bioorg.2020.103589] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/26/2019] [Accepted: 01/13/2020] [Indexed: 11/26/2022]
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22
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Yuan C, Duan W, Luo J, Han Y, Wang X. Human serum albumin-mediated recognition of soluble amyloid-β peptides using a time-resolved luminescent probe in plasma. Chem Commun (Camb) 2020; 56:5945-5948. [DOI: 10.1039/d0cc01384f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A terbium(iii) complex can recognize soluble Aβ in plasma through HSA-mediated co-assembly, which can not only circumvent the interference of HSA, but also benefit Aβ enrichment with amplified time-resolved luminescence enhancement.
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Affiliation(s)
- Chengyi Yuan
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Weiping Duan
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Jian Luo
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Yuwang Han
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Xiaohui Wang
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
- State Key Laboratory of Coordination Chemistry
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23
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Oliveri V, Vecchio G. Synthesis and Evaluation of New Cyclodextrin Derivatives as Amyloid‐β Aggregation Inhibitors. ChemistrySelect 2019. [DOI: 10.1002/slct.201902402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Valentina Oliveri
- Dipartimento di Scienze ChimicheUniversità degli Studi di Catania viale A. Doria 6 95125 Catania Italy
| | - Graziella Vecchio
- Dipartimento di Scienze ChimicheUniversità degli Studi di Catania viale A. Doria 6 95125 Catania Italy
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24
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Shamsimeymandi R, Pourshojaei Y, Eskandari K, Mohammadi-Khanaposhtani M, Abiri A, Khodadadi A, Langarizadeh A, Sharififar F, Amirheidari B, Akbarzadeh T, Lotfian H, Foroumadi A, Asadipour A. Design, synthesis, biological evaluation, and molecular dynamics of novel cholinesterase inhibitors as anti-Alzheimer's agents. Arch Pharm (Weinheim) 2019; 352:e1800352. [PMID: 31136018 DOI: 10.1002/ardp.201800352] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 04/09/2019] [Accepted: 04/12/2019] [Indexed: 11/08/2022]
Abstract
A series of novel chroman-4-one derivatives were designed and synthesized successfully with good to excellent yield (3a-l). In addition, the obtained products were evaluated for their cholinesterase (ChE) inhibitory activities. The results show that among the various synthesized compounds, analogs bearing the piperidinyl ethoxy side chain with 4-hydroxybenzylidene on the 3-positions of chroman-4-one (3l) showed the most potent activity with respect to acetylcholinesterase (anti-AChE activity; IC50 = 1.18 μM). In addition, the structure-activity relationship was studied and the results revealed that the electron-donating groups on the aryl ring of the 3-benzylidene fragment (3k, 3l) resulted in the designed compounds to be more potent ChE inhibitors in comparison with those having electron-withdrawing groups (3h). In this category, the strongest ChE inhibition was found for the compound containing piperidine as cyclic amine, and a hydroxyl group (for AChE, compound 3l) and fluoro group (for butyrylcholinesterase (BuChE, compound 3i) on the para-position of the aryl ring of the benzylidene group. The molecular docking and dynamics studies of the most potent compounds (3i and 3l against BuChE and AChE, respectively) demonstrated remarkable interactions with the binding pockets of the ChE enzymes and confirmed the results obtained through in vitro experiments.
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Affiliation(s)
- Reza Shamsimeymandi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutics Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Yaghoub Pourshojaei
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutics Research Center, Kerman University of Medical Sciences, Kerman, Iran.,Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Khalil Eskandari
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutics Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Maryam Mohammadi-Khanaposhtani
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Ardavan Abiri
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutics Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Arash Khodadadi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutics Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Amin Langarizadeh
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutics Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Fariba Sharififar
- Department of Pharmacognosy, School of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Bagher Amirheidari
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Tahmineh Akbarzadeh
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Persian Medicine and Pharmacy Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hania Lotfian
- Persian Medicine and Pharmacy Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Foroumadi
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.,Drug Design and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Asadipour
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutics Research Center, Kerman University of Medical Sciences, Kerman, Iran
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25
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Exploration of synthetic antioxidant flavonoid analogs as acetylcholinesterase inhibitors: an approach towards finding their quantitative structure–activity relationship. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02330-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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26
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Zhang J, Konsmo A, Sandberg A, Wu X, Nyström S, Obermüller U, Wegenast-Braun BM, Konradsson P, Lindgren M, Hammarström P. Phenolic Bis-styrylbenzo[c]-1,2,5-thiadiazoles as Probes for Fluorescence Microscopy Mapping of Aβ Plaque Heterogeneity. J Med Chem 2019; 62:2038-2048. [DOI: 10.1021/acs.jmedchem.8b01681] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jun Zhang
- Division of Chemistry, Department of Physics Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Audun Konsmo
- Department of Physics, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Alexander Sandberg
- Division of Chemistry, Department of Physics Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Xiongyu Wu
- Division of Chemistry, Department of Physics Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Sofie Nyström
- Division of Chemistry, Department of Physics Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Ulrike Obermüller
- Department of Cellular Neurology, Hertie Institute for Clinical Brain Research, University of Tübingen, 72076 Tübingen, Germany
- DZNE−German Center for Neurodegenerative Diseases, 72076 Tübingen, Germany
| | - Bettina M. Wegenast-Braun
- Department of Cellular Neurology, Hertie Institute for Clinical Brain Research, University of Tübingen, 72076 Tübingen, Germany
- DZNE−German Center for Neurodegenerative Diseases, 72076 Tübingen, Germany
| | - Peter Konradsson
- Division of Chemistry, Department of Physics Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Mikael Lindgren
- Department of Physics, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Per Hammarström
- Division of Chemistry, Department of Physics Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
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27
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Arja K, Elgland M, Nilsson KPR. Synthesis and Characterization of Oligothiophene-Porphyrin-Based Molecules That Can Be Utilized for Optical Assignment of Aggregated Amyloid-β Morphotypes. Front Chem 2018; 6:391. [PMID: 30234103 PMCID: PMC6129614 DOI: 10.3389/fchem.2018.00391] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 08/13/2018] [Indexed: 12/14/2022] Open
Abstract
Molecular tools for fluorescent imaging of protein aggregates are essential for understanding the significance of these pathological hallmarks in proteopathic neurodegenerative diseases, such as Alzheimer's disease. Here, we report the synthesis of a series of oligothiophene porphyrin hybrids, OTPHs, and the evaluation of these dyes for fluorescent imaging of beta-amyloid aggregates in tissue sections from a transgenic mouse model with Alzheimer's disease pathology. The OTPHs proved to be successful for spectral and lifetime imaging assessment of protein deposits and our findings confirm that the enhanced spectral range and distinct lifetime diversity of these novel tools allow a more precise assessment of heterogeneous amyloid morphology compared with the corresponding oligothiophene dye. In addition, the chemical identity of the porphyrin moiety, as well as the spacing between the two optical active moieties, influenced the OTPHs performance for fluorescent assignment of the protein deposits. We foresee that our findings will aid in the chemical design of dyes that can be utilized as optical tools for studying the polymorphic nature of protein aggregates associated with proteopathic neurodegenerative diseases.
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Affiliation(s)
- Katriann Arja
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden
| | - Mathias Elgland
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden
| | - K Peter R Nilsson
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden
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28
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Savelieff MG, Nam G, Kang J, Lee HJ, Lee M, Lim MH. Development of Multifunctional Molecules as Potential Therapeutic Candidates for Alzheimer’s Disease, Parkinson’s Disease, and Amyotrophic Lateral Sclerosis in the Last Decade. Chem Rev 2018; 119:1221-1322. [DOI: 10.1021/acs.chemrev.8b00138] [Citation(s) in RCA: 270] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Masha G. Savelieff
- SciGency Science Communications, Ann Arbor, Michigan 48104, United States
| | - Geewoo Nam
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Juhye Kang
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hyuck Jin Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Misun Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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29
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Rhenium and technetium complexes of thioamide derivatives of pyridylhydrazine that bind to amyloid-β plaques. J Biol Inorg Chem 2018; 23:1139-1151. [PMID: 29982869 DOI: 10.1007/s00775-018-1590-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/22/2018] [Indexed: 01/05/2023]
Abstract
Age-associated deposition of amyloid-β in cerebral blood vessels, a condition referred to as cerebral amyloid angiopathy, can contribute to stroke and dementia. This research aimed to design new radioactive technetium-99 m complexes that bind to amyloid-β plaques that have the potential to assist in diagnosis of cerebral amyloid angiopathy using single-photon-emitted computed tomography (SPECT) imaging. Six new pyridylthiosemicarbazide ligands containing either benzofuran or styrylpyridyl functional groups that are known to selectively bind to amyloid plaques were prepared. Non-radioactive isotopes of technetium are not available so rhenium was used as a surrogate for exploratory chemistry. The new ligands were used to prepare well-defined [Re-oxo]3+ complexes where two pyridylthiosemicarbazide ligands were coordinated to a single metal ion to give bivalent complexes with two amyloid-β targeting functional groups. The interaction of the [Re-oxo]3+ complexes with synthetic amyloid-β1-42 and with amyloid plaques in human brain tissue was investigated. Two ligands were selected to develop methods to prepare their [99mTc-oxo]3+ complexes at the tracer level. These technetium-99 m complexes are likely to be isostructural to their rhenium-oxo analogues.
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30
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Zhang J, Sandberg A, Konsmo A, Wu X, Nyström S, Nilsson KPR, Konradsson P, LeVine H, Lindgren M, Hammarström P. Detection and Imaging of Aβ1-42 and Tau Fibrils by Redesigned Fluorescent X-34 Analogues. Chemistry 2018. [DOI: 10.1002/chem.201800501] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jun Zhang
- Division of chemistry; Department of Physics, Chemistry and Biology; Linköping University; 581 83 Linköping Sweden
| | - Alexander Sandberg
- Division of chemistry; Department of Physics, Chemistry and Biology; Linköping University; 581 83 Linköping Sweden
| | - Audun Konsmo
- Department of Physics; The Norwegian University of Science and Technology; 7491 Trondheim Norway
| | - Xiongyu Wu
- Division of chemistry; Department of Physics, Chemistry and Biology; Linköping University; 581 83 Linköping Sweden
| | - Sofie Nyström
- Division of chemistry; Department of Physics, Chemistry and Biology; Linköping University; 581 83 Linköping Sweden
| | - K. Peter R. Nilsson
- Division of chemistry; Department of Physics, Chemistry and Biology; Linköping University; 581 83 Linköping Sweden
| | - Peter Konradsson
- Division of chemistry; Department of Physics, Chemistry and Biology; Linköping University; 581 83 Linköping Sweden
| | - Harry LeVine
- Sanders-Brown Center on Aging; University of Kentucky; Lexington KY 40536-0230 USA
| | - Mikael Lindgren
- Division of chemistry; Department of Physics, Chemistry and Biology; Linköping University; 581 83 Linköping Sweden
- Department of Physics; The Norwegian University of Science and Technology; 7491 Trondheim Norway
| | - Per Hammarström
- Division of chemistry; Department of Physics, Chemistry and Biology; Linköping University; 581 83 Linköping Sweden
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31
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CoMFA and CoMSIA-based designing of resveratrol derivatives as amyloid-beta aggregation inhibitors against Alzheimer's disease. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2138-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lan JS, Liu Y, Hou JW, Yang J, Zhang XY, Zhao Y, Xie SS, Ding Y, Zhang T. Design, synthesis and evaluation of resveratrol-indazole hybrids as novel monoamine oxidases inhibitors with amyloid- β aggregation inhibition. Bioorg Chem 2018; 76:130-139. [DOI: 10.1016/j.bioorg.2017.11.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/12/2017] [Accepted: 11/15/2017] [Indexed: 12/23/2022]
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33
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Shirani H, Appelqvist H, Bäck M, Klingstedt T, Cairns NJ, Nilsson KPR. Synthesis of Thiophene-Based Optical Ligands That Selectively Detect Tau Pathology in Alzheimer's Disease. Chemistry 2017; 23:17127-17135. [PMID: 28926133 PMCID: PMC5928317 DOI: 10.1002/chem.201703846] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Indexed: 01/09/2023]
Abstract
The accumulation of protein aggregates is associated with many devastating neurodegenerative diseases and the development of molecular ligands able to detect these pathological hallmarks is essential. Here, the synthesis of thiophene based optical ligands, denoted bi-thiophene-vinyl-benzothiazoles (bTVBTs) that can be utilized for selective assignment of tau aggregates in brain tissue with Alzheimer's disease (AD) pathology is reported. The ability of the ligands to selectively distinguish tau deposits from the other AD associated pathological hallmark, senile plaques consisting of aggregated amyloid-β (Aβ) peptide, was reduced when the chemical composition of the ligands was altered, verifying that specific molecular interactions between the ligands and the aggregates are necessary for the selective detection of tau deposits. Our findings provide the structural and functional basis for the development of new fluorescent ligands that can distinguish between aggregated proteinaceous species consisting of different proteins. In addition, the bTVBT scaffold might be utilized to create powerful practical research tools for studying the underlying molecular events of tau aggregation and for creating novel agents for clinical imaging of tau pathology in AD.
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Affiliation(s)
- Hamid Shirani
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
| | - Hanna Appelqvist
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
| | - Marcus Bäck
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
| | - Therése Klingstedt
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
| | - Nigel J. Cairns
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, U.S.A
| | - K. Peter R. Nilsson
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
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34
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The protection of novel 2-arylethenylquinoline derivatives against impairment of associative learning memory induced by neural Aβ in C. elegans Alzheimer’s disease model. Neurochem Res 2017; 42:3061-3072. [DOI: 10.1007/s11064-017-2339-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 06/15/2017] [Accepted: 06/20/2017] [Indexed: 12/12/2022]
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35
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Ji Y, Lee HJ, Kim M, Nam G, Lee SJC, Cho J, Park CM, Lim MH. Strategic Design of 2,2′-Bipyridine Derivatives to Modulate Metal–Amyloid-β Aggregation. Inorg Chem 2017; 56:6695-6705. [DOI: 10.1021/acs.inorgchem.7b00782] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | | | | | | | | | - Jaeheung Cho
- Department of Emerging Materials
Science, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
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36
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Lee HJ, Korshavn KJ, Nam Y, Kang J, Paul TJ, Kerr RA, Youn IS, Ozbil M, Kim KS, Ruotolo BT, Prabhakar R, Ramamoorthy A, Lim MH. Structural and Mechanistic Insights into Development of Chemical Tools to Control Individual and Inter-Related Pathological Features in Alzheimer's Disease. Chemistry 2017; 23:2706-2715. [PMID: 28004889 PMCID: PMC5826595 DOI: 10.1002/chem.201605401] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Indexed: 01/29/2023]
Abstract
To elucidate the involvement of individual and inter-related pathological factors [i.e., amyloid-β (Aβ), metals, and oxidative stress] in the pathogenesis of Alzheimer's disease (AD), chemical tools have been developed. Characteristics required for such tool construction, however, have not been clearly identified; thus, the optimization of available tools or new design has been limited. Here, key structural properties and mechanisms that can determine tools' regulatory reactivities with multiple pathogenic features found in AD are reported. A series of small molecules was built up through rational structural selection and variations onto the framework of a tool useful for in vitro and in vivo metal-Aβ investigation. Variations include: (i) location and number of an Aβ interacting moiety; (ii) metal binding site; and (iii) denticity and structural flexibility. Detailed biochemical, biophysical, and computational studies were able to provide a foundation of how to originate molecular formulas to devise chemical tools capable of controlling the reactivities of various pathological components through distinct mechanisms. Overall, this multidisciplinary investigation illustrates a structure-mechanism-based strategy of tool invention for such a complicated brain disease.
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Affiliation(s)
- Hyuck Jin Lee
- School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Kyle J Korshavn
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Younwoo Nam
- Department of Chemistry, UNIST, Ulsan, 44919, Republic of Korea
| | - Juhye Kang
- Department of Chemistry, UNIST, Ulsan, 44919, Republic of Korea
| | - Thomas J Paul
- Department of Chemistry, University of Miami, Coral Gables, Florida, 33146, USA
| | - Richard A Kerr
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Il Seung Youn
- Department of Chemistry, UNIST, Ulsan, 44919, Republic of Korea
| | - Mehmet Ozbil
- Department of Chemistry, University of Miami, Coral Gables, Florida, 33146, USA
| | - Kwang S Kim
- Department of Chemistry, UNIST, Ulsan, 44919, Republic of Korea
| | - Brandon T Ruotolo
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Rajeev Prabhakar
- Department of Chemistry, University of Miami, Coral Gables, Florida, 33146, USA
| | - Ayyalusamy Ramamoorthy
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109, USA
- Biophysics, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Mi Hee Lim
- Department of Chemistry, UNIST, Ulsan, 44919, Republic of Korea
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Kawasaki M, Fuchigami T, Kobashi N, Nakagaki T, Sano K, Atarashi R, Yoshida S, Haratake M, Nishida N, Nakayama M. Development of radioiodinated acridine derivatives for in vivo imaging of prion deposits in the brain. Bioorg Med Chem 2016; 25:1085-1093. [PMID: 28041803 DOI: 10.1016/j.bmc.2016.12.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/30/2016] [Accepted: 12/16/2016] [Indexed: 01/04/2023]
Abstract
Prion diseases are caused by deposition of abnormal prion protein aggregates (PrPSc) in the central nervous system. This study aimed to develop in vivo imaging probes that can detect cerebral PrPSc deposits. We synthesized several quinacrine-based acridine (AC) derivatives with 2,9-substitution and radioiodinated them. The AC derivatives were evaluated as prion-imaging probes using recombinant mouse prion protein (rMoPrP) aggregates and brain sections of mouse-adapted bovine spongiform encephalopathy (mBSE)-infected mice. The distribution of these compounds in mice was also evaluated. The 2-methoxy derivative [125I]2 exhibited the highest binding affinity for rMoPrP aggregates with an equilibrium dissociation constant (Kd) value of 43.4nM. Fluorescence imaging with 2 showed clear signals at the thioflavin T (ThT)-positive amyloid deposits in the mBSE-infected mouse brain. Although a discrepancy was observed between the in vitro binding of AC derivatives to the aggregates and in vivo distribution of these compounds in the brain and we failed to identify prospective prion-imaging probes in this study, the AC derivatives may be considered a useful scaffold for the development of in vivo imaging probes. Further chemical modification of these AC derivatives may discover clinically applicable prion imaging probes.
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Affiliation(s)
- Masao Kawasaki
- Department of Hygienic Chemistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Takeshi Fuchigami
- Department of Hygienic Chemistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
| | - Nobuya Kobashi
- Department of Hygienic Chemistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Takehiro Nakagaki
- Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Kazunori Sano
- Department of Physiology and Pharmacology, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, Japan
| | - Ryuichiro Atarashi
- Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
| | - Sakura Yoshida
- Department of Hygienic Chemistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Mamoru Haratake
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Noriyuki Nishida
- Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Morio Nakayama
- Department of Hygienic Chemistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
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Bäck M, Appelqvist H, LeVine H, Nilsson KPR. Anionic Oligothiophenes Compete for Binding of X-34 but not PIB to Recombinant Aβ Amyloid Fibrils and Alzheimer's Disease Brain-Derived Aβ. Chemistry 2016; 22:18335-18338. [PMID: 27767229 PMCID: PMC5215536 DOI: 10.1002/chem.201604583] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Indexed: 02/02/2023]
Abstract
Deposits comprised of amyloid‐β (Aβ) are one of the pathological hallmarks of Alzheimer's disease (AD) and small hydrophobic ligands targeting these aggregated species are used clinically for the diagnosis of AD. Herein, we observed that anionic oligothiophenes efficiently displaced X‐34, a Congo Red analogue, but not Pittsburgh compound B (PIB) from recombinant Aβ amyloid fibrils and Alzheimer's disease brain‐derived Aβ. Overall, we foresee that the oligothiophene scaffold offers the possibility to develop novel high‐affinity ligands for Aβ pathology only found in human AD brain, targeting a different site than PIB.
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Affiliation(s)
- Marcus Bäck
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
| | - Hanna Appelqvist
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
| | - Harry LeVine
- Department Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, 40536-0230, USA
| | - K Peter R Nilsson
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83, Linköping, Sweden
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39
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Santos MA, Chand K, Chaves S. Recent progress in multifunctional metal chelators as potential drugs for Alzheimer's disease. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.04.013] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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40
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Amyloid imaging: Past, present and future perspectives. Ageing Res Rev 2016; 30:95-106. [PMID: 26827784 DOI: 10.1016/j.arr.2016.01.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 01/21/2016] [Accepted: 01/22/2016] [Indexed: 11/23/2022]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterised by the gradual onset of dementia. The pathological hallmarks of the disease are Aβ amyloid plaques, and tau neurofibrillary tangles, along dendritic and synaptic loss and reactive gliosis. Functional and molecular neuroimaging techniques such as positron emission tomography (PET) using functional and molecular tracers, in conjuction with other Aβ and tau biomarkers in CSF, are proving valuable in the differential diagnosis of AD, as well as in establishing disease prognosis. With the advent of new therapeutic strategies, there has been an increasing application of these techniques for the determination of Aβ burden in vivo in the patient selection, evaluation of target engagement and assessment of the efficacy of therapeutic approaches aimed at reducing Aβ in the brain.
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41
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Fu CL, Hsu LS, Liao YF, Hu MK. New Hydroxyquinoline-Based Derivatives as Potent Modulators of Amyloid-β Aggregations. Arch Pharm (Weinheim) 2016; 349:327-41. [PMID: 27027880 DOI: 10.1002/ardp.201500453] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/16/2016] [Accepted: 02/23/2016] [Indexed: 12/26/2022]
Abstract
Copper and zinc have been found to contribute to the burden of amyloid-β (Aβ) aggregations in neurodegenerative Alzheimer's disease (AD). Dysregulation of these metals leads to the generation of reactive oxygen species (ROS) and eventually results in oxidative damage and accumulation of the Aβ peptide, which are the key elements of the disease. Aiming to pursue the discovery of new modulators for the disease, we here rationally focused on conjugating the core hydroxyquinoline of the metal-protein attenuating compound PBT2 and the N-methylanilide analogous moiety of the Aβ imaging agent to build a new type of multi-target modulators of Aβ aggregations. We found that the N,N-dimethylanilinyl imines 7a, 8a, and the corresponding amines 7b, 8b exerted efficient inhibition of Cu(2+) - or Zn(2+) -induced Aβ aggregations and significant disassembly of metal-mediated Aβ aggregated fibrils. Further, 7a and 7b also exhibited significant ROC scavenging effects compared to PBT2. The results suggested that 7a and 7b are promising lead compounds for the development of a new therapy for AD.
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Affiliation(s)
- Chin-Lan Fu
- School of Pharmacy, National Defense Medical Center, Taipei, Taiwan
| | - Li-Shin Hsu
- School of Pharmacy, National Defense Medical Center, Taipei, Taiwan
| | - Yung-Feng Liao
- Laboratories of Molecular Neurobiology, Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Ming-Kuan Hu
- School of Pharmacy, National Defense Medical Center, Taipei, Taiwan
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42
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Liao M, Zhao Y, Huang L, Cheng B, Huang K. Isoliquiritigenin and liquiritin from Glycyrrhiza uralensis inhibit α-synuclein amyloid formation. RSC Adv 2016. [DOI: 10.1039/c6ra17770k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Bioactive isoliquiritigenin and liquiritin inhibit α-synuclein aggregation and extend the life span of theC. elegansmodel of Parkinson's disease.
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Affiliation(s)
- Mingyan Liao
- Tongji School of Pharmacy
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Yudan Zhao
- Tongji School of Pharmacy
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Lizi Huang
- Tongji School of Pharmacy
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Biao Cheng
- The Department of Pharmacy
- The Central Hospital of Wuhan
- Wuhan
- China
| | - Kun Huang
- Tongji School of Pharmacy
- Huazhong University of Science and Technology
- Wuhan
- China
- Center for Biomedicine Research
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43
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Hayne DJ, North AJ, Fodero-Tavoletti M, White JM, Hung LW, Rigopoulos A, McLean CA, Adlard PA, Ackermann U, Tochon-Danguy H, Villemagne VL, Barnham KJ, Donnelly PS. Rhenium and technetium complexes that bind to amyloid-β plaques. Dalton Trans 2015; 44:4933-44. [PMID: 25515141 DOI: 10.1039/c4dt02969k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Alzheimer's disease is associated with the presence of insoluble protein deposits in the brain called amyloid plaques. The major constituent of these deposits is aggregated amyloid-β peptide. Technetium-99m complexes that bind to amyloid-β plaques could provide important diagnostic information on amyloid-β plaque burden using Single Photon Emission Computed Tomography (SPECT). Tridentate ligands with a stilbene functional group were used to form complexes with the fac-[M(I)(CO)3](+) (M = Re or (99m)Tc) core. The rhenium carbonyl complexes with tridentate co-ligands that included a stilbene functional group and a dimethylamino substituent bound to amyloid-β present in human frontal cortex brain tissue from subjects with Alzheimer's disease. This chemistry was extended to make the analogous [(99m)Tc(I)(CO)3](+) complexes and the complexes were sufficiently stable in human serum. Whilst the lipophilicity (log D7.4) of the technetium complexes appeared ideally suited for penetration of the blood-brain barrier, preliminary biodistribution studies in an AD mouse model (APP/PS1) revealed relatively low brain uptake (0.24% ID g(-1) at 2 min post injection).
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Affiliation(s)
- David J Hayne
- School of Chemistry, University of Melbourne, Melbourne, 3010, Australia.
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44
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Shirani H, Linares M, Sigurdson CJ, Lindgren M, Norman P, Nilsson KPR. A Palette of Fluorescent Thiophene-Based Ligands for the Identification of Protein Aggregates. Chemistry 2015; 21:15133-7. [PMID: 26388448 PMCID: PMC4641461 DOI: 10.1002/chem.201502999] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Indexed: 11/09/2022]
Abstract
By replacing the central thiophene unit of an anionic pentameric oligothiophene with other heterocyclic moities, a palette of pentameric thiophene-based ligands with distinct fluorescent properties were synthesized. All ligands displayed superior selectivity towards recombinant amyloid fibrils as well as disease-associated protein aggregates in tissue sections.
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Affiliation(s)
- Hamid Shirani
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping (Sweden)
| | - Mathieu Linares
- Division of Theoretical Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping (Sweden)
| | - Christina J Sigurdson
- Department of Pathology, University of California, San Diego, La Jolla, California 92093-0612 (USA)
| | - Mikael Lindgren
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping (Sweden)
| | - Patrick Norman
- Division of Theoretical Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping (Sweden)
| | - K Peter R Nilsson
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping (Sweden).
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45
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Khanam H, Shamsuzzaman. Bioactive Benzofuran derivatives: A review. Eur J Med Chem 2015; 97:483-504. [DOI: 10.1016/j.ejmech.2014.11.039] [Citation(s) in RCA: 277] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/19/2014] [Accepted: 11/21/2014] [Indexed: 12/13/2022]
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46
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Topal M, Gocer H, Topal F, Kalin P, Köse LP, Gülçin İ, Çakmak KC, Küçük M, Durmaz L, Gören AC, Alwasel SH. Antioxidant, antiradical, and anticholinergic properties of cynarin purified from the Illyrian thistle (Onopordum illyricum L.). J Enzyme Inhib Med Chem 2015; 31:266-75. [DOI: 10.3109/14756366.2015.1018244] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Meryem Topal
- Department of Medical Services and Techniques, Gumushane University, Vocational School of Health Services, Gumushane, Turkey,
| | - Hulya Gocer
- Central Researching Laboratory, Agri Ibrahim Cecen University, Agri, Turkey,
| | - Fevzi Topal
- Department of Medical Services and Techniques, Gumushane University, Vocational School of Health Services, Gumushane, Turkey,
| | - Pınar Kalin
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, Turkey,
| | - Leyla Polat Köse
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, Turkey,
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, Turkey,
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia, and
| | - Kader C. Çakmak
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, Turkey,
| | - Murat Küçük
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, Turkey,
| | - Lokman Durmaz
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, Turkey,
| | - Ahmet C. Gören
- TUBITAK UME, Chemistry Group Laboratories, Gebze-Kocaeli, Turkey
| | - Saleh H. Alwasel
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia, and
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47
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Beck MW, Oh SB, Kerr RA, Lee HJ, Kim SH, Kim S, Jang M, Ruotolo BT, Lee JY, Lim MH. A rationally designed small molecule for identifying an in vivo link between metal-amyloid-β complexes and the pathogenesis of Alzheimer's disease. Chem Sci 2015; 6:1879-1886. [PMID: 28706643 PMCID: PMC5494539 DOI: 10.1039/c4sc03239j] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 12/03/2014] [Indexed: 12/25/2022] Open
Abstract
Multiple factors, including amyloid-β (Aβ), metals, and reactive oxygen species (ROS), are involved in the development of Alzheimer's disease (AD). Metal ions can interact with Aβ species generating toxic oligomers and ROS in vitro; however, the involvement of metal-Aβ complexes in AD pathology in vivo remains unclear. To solve this uncertainty, we have developed a chemical tool (L2-b) that specifically targets metal-Aβ complexes and modulates their reactivity (i.e., metal-Aβ aggregation, toxic oligomer formation, and ROS production). Through the studies presented herein, we demonstrate that L2-b is able to specifically interact with metal-Aβ complexes over metal-free Aβ analogues, redirect metal-Aβ aggregation into off-pathway, nontoxic less structured Aβ aggregates, and diminish metal-Aβ-induced ROS production, overall mitigating metal-Aβ-triggered toxicity, confirmed by multidisciplinary approaches. L2-b is also verified to enter the brain in vivo with relative metabolic stability. Most importantly, upon treatment of 5XFAD AD mice with L2-b, (i) metal-Aβ complexes are targeted and modulated in the brain; (ii) amyloid pathology is reduced; and (iii) cognition deficits are significantly improved. To the best of our knowledge, by employing an in vivo chemical tool specifically prepared for investigating metal-Aβ complexes, we report for the first time experimental evidence that metal-Aβ complexes are related directly to AD pathogenesis.
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Affiliation(s)
- Michael W Beck
- Department of Chemistry , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798 , Republic of Korea .
- Department of Chemistry , University of Michigan , Ann Arbor , MI 48109-1055 , USA .
| | - Shin Bi Oh
- Asan Institute for Life Sciences , Asan Medical Center , Seoul 138-736 , Republic of Korea .
| | - Richard A Kerr
- Department of Chemistry , University of Michigan , Ann Arbor , MI 48109-1055 , USA .
| | - Hyuck Jin Lee
- Department of Chemistry , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798 , Republic of Korea .
- Department of Chemistry , University of Michigan , Ann Arbor , MI 48109-1055 , USA .
| | - So Hee Kim
- Asan Institute for Life Sciences , Asan Medical Center , Seoul 138-736 , Republic of Korea .
| | - Sujeong Kim
- Asan Institute for Life Sciences , Asan Medical Center , Seoul 138-736 , Republic of Korea .
| | - Milim Jang
- Department of Chemistry , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798 , Republic of Korea .
| | - Brandon T Ruotolo
- Department of Chemistry , University of Michigan , Ann Arbor , MI 48109-1055 , USA .
| | - Joo-Yong Lee
- Asan Institute for Life Sciences , Asan Medical Center , Seoul 138-736 , Republic of Korea .
- Department of Neurology , University of Ulsan College of Medicine , Seoul 138-736 , Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798 , Republic of Korea .
- Life Sciences Institute , University of Michigan , Ann Arbor , Michigan 48109-2216 , USA
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48
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Lee YR, Kim Y, Yoo KH. Bis-styrylnaphthalene and Bis-styrylnaphthyridine Derivatives with High Binding Affinity to β-Amyloid Fibrils. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yeo Ran Lee
- Chemical Kinomics Research Center; Korea Institute of Science and Technology; Seoul 130-650 Korea
| | - YoungSoo Kim
- Center for Neuro-Medicine; Brain Science Institute, Korea Institute of Science and Technology; Seoul 130-650 Republic of Korea
| | - Kyung Ho Yoo
- Chemical Kinomics Research Center; Korea Institute of Science and Technology; Seoul 130-650 Korea
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49
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Ono M, Saji H. Recent advances in molecular imaging probes for β-amyloid plaques. MEDCHEMCOMM 2015. [DOI: 10.1039/c4md00365a] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We review recent advances in our development of molecular imaging probes for PET, SPECT, and optical imaging for in vivo detection of β-amyloid plaques in the brain.
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Affiliation(s)
- Masahiro Ono
- Department of Patho-Functional Bioanalysis
- Graduate School of Pharmaceutical Sciences
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Hideo Saji
- Department of Patho-Functional Bioanalysis
- Graduate School of Pharmaceutical Sciences
- Kyoto University
- Kyoto 606-8501
- Japan
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50
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Johansson LB, Simon R, Bergström G, Eriksson M, Prokop S, Mandenius CF, Heppner FL, Åslund AK, Nilsson KPR. An azide functionalized oligothiophene ligand – A versatile tool for multimodal detection of disease associated protein aggregates. Biosens Bioelectron 2015; 63:204-211. [DOI: 10.1016/j.bios.2014.07.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 07/03/2014] [Accepted: 07/06/2014] [Indexed: 10/25/2022]
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