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Cheng Z, Han T, Yao J, Wang K, Dong X, Yu F, Huang H, Han M, Liao Q, He S, Lyu W, Li Q. Targeting glycogen synthase kinase-3β for Alzheimer's disease: Recent advances and future Prospects. Eur J Med Chem 2024; 265:116065. [PMID: 38160617 DOI: 10.1016/j.ejmech.2023.116065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/04/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024]
Abstract
Senile plaques induced by β-amyloid (Aβ) abnormal aggregation and neurofibrillary tangles (NFT) caused by tau hyperphosphorylation are important pathological manifestations of Alzheimer's disease (AD). Glycogen synthase kinase-3 (GSK-3) is a conserved kinase; one member GSK-3β is highly expressed in the AD brain and involved in the formation of NFT. Hence, pharmacologically inhibiting GSK-3β activity and expression is a good approach to treat AD. As summarized in this article, multiple GSK-3β inhibitors has been comprehensively summarized over recent five years. However, only lithium carbonate and Tideglusib have been studied in clinical trials of AD. Besides ATP-competitive and non-ATP-competitive inhibitors, peptide inhibitors, allosteric inhibitors and other types of inhibitors have gradually attracted more interest. Moreover, considering the close relationship between GSK-3β and other targets involved in cholinergic hypothesis, Aβ aggregation hypothesis, tau hyperphosphorylation hypothesis, oxidative stress hypothesis, neuro-inflammation hypothesis, etc., diverse multifunctional molecules and multi-target directed ligands (MTDLs) have also been disclosed. We hope that these recent advances and critical perspectives will facilitate the discovery of safe and effective GSK-3β inhibitors for AD treatment.
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Affiliation(s)
- Zimeng Cheng
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Tianyue Han
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Jingtong Yao
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Kaixuan Wang
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Xue Dong
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Fan Yu
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - He Huang
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Menglin Han
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Qinghong Liao
- Shandong Kangqiao Biotechnology Co., Ltd, Qingdao, 266033, Shandong, People's Republic of China
| | - Siyu He
- Guizhou Medical University, Guiyang, 550025, Guizhou, People's Republic of China
| | - Weiping Lyu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, People's Republic of China
| | - Qi Li
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China.
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2
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Caburet J, Verdirosa F, Moretti M, Roulier B, Simoncelli G, Haudecoeur R, Ghazi S, Jamet H, Docquier JD, Boucherle B, Peuchmaur M. Aurones and derivatives as promising New Delhi metallo-β-lactamase (NDM-1) inhibitors. Bioorg Med Chem 2024; 97:117559. [PMID: 38109811 DOI: 10.1016/j.bmc.2023.117559] [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: 07/10/2023] [Revised: 11/24/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023]
Abstract
Bacterial resistance is undoubtedly one of the main public health concerns especially with the emergence of metallo-β-lactamases (MBLs) able to hydrolytically inactivate β-lactam antibiotics. Currently, there are no inhibitors of MBLs in clinical use to rescue antibiotic action and the New Delhi metallo-β-lactamase-1 (NDM-1) is still considered as one of the most relevant targets for inhibitor development. Following a fragment-based strategy to find new NDM-1 inhibitors, we identified aurone as a promising scaffold. A series of 60 derivatives were then evaluated and two of them were identified as promising inhibitors with Ki values as low as 1.7 and 2.5 µM. Moreover, these two most active compounds were able to potentiate meropenem in in vitro antimicrobial susceptibility assays. The molecular modelling provided insights about their likely interactions with the active site of NDM-1, thus enabling further improvement in the structure of this new inhibitor family.
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Affiliation(s)
| | - Federica Verdirosa
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, 53100 Siena, Italy
| | - Matis Moretti
- Univ. Grenoble Alpes, CNRS, DPM, 38000 Grenoble, France
| | | | - Giorgia Simoncelli
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, 53100 Siena, Italy
| | | | - Somayeh Ghazi
- Univ. Grenoble Alpes, CNRS, DPM, 38000 Grenoble, France
| | - Hélène Jamet
- Univ. Grenoble Alpes, CNRS, DCM, 38000 Grenoble, France
| | - Jean-Denis Docquier
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, 53100 Siena, Italy; Laboratoire de Bactériologie Moléculaire, UR-InBioS, Université de Liège, 4000 Liège, Belgium
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3
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Prajapat M, Kaur G, Choudhary G, Pahwa P, Bansal S, Joshi R, Batra G, Mishra A, Singla R, Kaur H, Prabha PK, Patel AP, Medhi B. A systematic review for the development of Alzheimer's disease in in vitro models: a focus on different inducing agents. Front Aging Neurosci 2023; 15:1296919. [PMID: 38173557 PMCID: PMC10761490 DOI: 10.3389/fnagi.2023.1296919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024] Open
Abstract
Alzheimer's disease (AD) is the most common progressive neurodegenerative disease and is associated with dementia. Presently, various chemical and environmental agents are used to induce in-vitro models of Alzheimer disease to investigate the efficacy of different therapeutic drugs. We screened literature from databases such as PubMed, ScienceDirect, and Google scholar, emphasizing the diverse targeting mechanisms of neuro degeneration explored in in-vitro models. The results revealed studies in which different types of chemicals and environmental agents were used for in-vitro development of Alzheimer-targeting mechanisms of neurodegeneration. Studies using chemically induced in-vitro AD models included in this systematic review will contribute to a deeper understanding of AD. However, none of these models can reproduce all the characteristics of disease progression seen in the majority of Alzheimer's disease subtypes. Additional modifications would be required to replicate the complex conditions of human AD in an exact manner. In-vitro models of Alzheimer's disease developed using chemicals and environmental agents are instrumental in providing insights into the disease's pathophysiology; therefore, chemical-induced in-vitro AD models will continue to play vital role in future AD research. This systematic screening revealed the pivotal role of chemical-induced in-vitro AD models in advancing our understanding of AD pathophysiology and is therefore important to understand the potential of these chemicals in AD pathogenesis.
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Affiliation(s)
| | - Gurjeet Kaur
- Department of Pharmacology, PGIMER, Chandigarh, India
| | | | - Paras Pahwa
- Department of Pharmacology, PGIMER, Chandigarh, India
| | - Seema Bansal
- MM College of Pharmacy, Maharishi Markandeshwar (DU) University, Mullana, Ambala, India
| | - Rupa Joshi
- Department of Pharmacology, PGIMER, Chandigarh, India
| | - Gitika Batra
- Department of Neurology, PGIMER, Chandigarh, India
| | - Abhishek Mishra
- Department of Biomedical Sciences, University of Minnesota, Minneapolis, MN, United States
| | - Rubal Singla
- Department of Pharmacology, PGIMER, Chandigarh, India
| | | | | | | | - Bikash Medhi
- Department of Pharmacology, PGIMER, Chandigarh, India
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4
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Aluru R, Mukherjee A, Zyryanov GV, Majee A, Santra S. Recent Trends in the Antidiabetic Prominence of Natural and Synthetic Analogues of Aurones. Curr Issues Mol Biol 2023; 45:8461-8475. [PMID: 37886976 PMCID: PMC10605527 DOI: 10.3390/cimb45100533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 09/30/2023] [Accepted: 10/07/2023] [Indexed: 10/28/2023] Open
Abstract
Natural products are a boundless source for the development of pharmaceutical agents against a wide range of human diseases. Accordingly, naturally occurring aurones possess various biological benefits, such as anticancer, antioxidant, antimicrobial, antidiabetic, anti-inflammatory, antiviral and neuroprotective effects. In addition, various studies have revealed that aurones are potential templates for the regulation of diabetes mellitus and its associated complications. Likewise, certain aurones and their analogues have been found to be remarkable kinase inhibitors of DARK2, PPAR-γ, PTPM1, AGE, α-amylase and α-glucosidase, which represents a promising approach for the treatment of chronic metabolic disorders such as diabetes. Therefore, in our present study, we provide a detailed account of the advances in aurones as antidiabetic agents over the past decade.
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Affiliation(s)
- Rammohan Aluru
- Chemical Engineering Institute, Ural Federal University, 19 Mira Str., 620002 Yekaterinburg, Russia; (R.A.); (A.M.); (G.V.Z.)
| | - Anindita Mukherjee
- Chemical Engineering Institute, Ural Federal University, 19 Mira Str., 620002 Yekaterinburg, Russia; (R.A.); (A.M.); (G.V.Z.)
| | - Grigory V. Zyryanov
- Chemical Engineering Institute, Ural Federal University, 19 Mira Str., 620002 Yekaterinburg, Russia; (R.A.); (A.M.); (G.V.Z.)
- I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya Str., 620219 Yekaterinburg, Russia
| | - Adinath Majee
- Department of Chemistry, Visva-Bharati (A Central University), Birbhum, Santiniketan 731235, India;
| | - Sougata Santra
- Chemical Engineering Institute, Ural Federal University, 19 Mira Str., 620002 Yekaterinburg, Russia; (R.A.); (A.M.); (G.V.Z.)
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5
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Lazinski LM, Royal G, Robin M, Maresca M, Haudecoeur R. Bioactive Aurones, Indanones, and Other Hemiindigoid Scaffolds: Medicinal Chemistry and Photopharmacology Perspectives. J Med Chem 2022; 65:12594-12625. [PMID: 36126323 DOI: 10.1021/acs.jmedchem.2c01150] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hemiindigoids comprise a range of natural and synthetic scaffolds that share the same aromatic hydrocarbon backbone as well as promising biological and optical properties. The encouraging therapeutic potential of these scaffolds has been unraveled by many studies over the past years and uncovered representants with inspiring pharmacophoric features such as the acetylcholinesterase inhibitor donezepil and the tubulin polymerization inhibitor indanocine. In this review, we summarize the last advances in the medicinal potential of hemiindigoids, with a special attention to molecular design, structure-activity relationship, ligand-target interactions, and mechanistic explanations covering their effects. As their strong fluorogenic potential and photoswitch behavior recently started to be highlighted and explored in biology, giving rise to the development of novel fluorescent probes and photopharmacological agents, we also discuss these properties in a medicinal chemistry perspective.
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Affiliation(s)
- Leticia M Lazinski
- Université Grenoble Alpes, CNRS 5063, DPM, 38000 Grenoble, France.,Université Grenoble Alpes, CNRS 5250, DCM, 38000 Grenoble, France
| | - Guy Royal
- Université Grenoble Alpes, CNRS 5250, DCM, 38000 Grenoble, France
| | - Maxime Robin
- Mediterranean Institute of Marine and Terrestrial Biodiversity and Ecology (IMBE), Aix Marseille Université, 27 Boulevard Jean Moulin, 13385 Marseille, France
| | - Marc Maresca
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, 13397 Marseille, France
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6
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Exploring the structure-activity relationship of benzylidene-2,3-dihydro-1H-inden-1-one compared to benzofuran-3(2H)-one derivatives as inhibitors of tau amyloid fibers. Eur J Med Chem 2022; 231:114139. [DOI: 10.1016/j.ejmech.2022.114139] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 01/11/2022] [Accepted: 01/15/2022] [Indexed: 12/27/2022]
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7
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Baussanne I, Firstova O, Dediu AB, Larosa C, Furdui B, Ghinea IO, Thomas A, Chierici S, Dinica R, Demeunynck M. Interest of novel N-alkylpyridinium-indolizine hybrids in the field of Alzheimer's disease: Synthesis, characterization and evaluation of antioxidant activity, cholinesterase inhibition, and amyloid fibrillation interference. Bioorg Chem 2021; 116:105390. [PMID: 34670332 DOI: 10.1016/j.bioorg.2021.105390] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/17/2021] [Accepted: 09/26/2021] [Indexed: 12/17/2022]
Abstract
A small library of molecules combining indolizine and N-alkyl pyridinium was synthesized and evaluated in a multi-target-directed-ligand strategy for Alzheimer's disease (AD) treatment. The new compounds were classified in three series depending on the number of methylene residues linking the two heterocycles (Ind-PyCx with x = 0, 2 or 3). The molecules were synthesized from the corresponding bis-pyridines by two-step formation of the indolizine core including mono-alkylation of pyridine and 1,3-dipolar cycloaddition with an alkylpropiolate. Their activities against AD's key-targets were evaluated in vitro: acetyl- and butyrylcholinesterase (AChE and BChE) inhibition, antioxidant properties and inhibition of amyloid fibril formation. None of the three series showed significant activities against all the targets. The Ind-PyC2 and Ind-PyC3 series are active on eeAChE and hAChE (µM IC50 values). Most of the positively charged molecules from these two series also appeared active against eqBChE, however they lost their activity on hBChE. Comparative molecular modeling of 13 and 15 docked in hAChE and hBChE highlighted the importance of the substituent (p-methoxybenzoyl or methyloxycarbonyl, respectively) located on the indolizine C-3 for the binding. The larger molecule 13 fits more tightly at the active site of the two enzymes than 15 that shows a larger degree of freedom. The Ind-PyC2 and Ind-PyC3 hybrids displayed some antioxidant activity when tested at 750 µg/mL (up to 95% inhibition of DPPH radical scavenging for 10). In both series, most hybrids were also able to interact with amyloid fibers, even if the inhibitory effect was observed at a high 100 µM concentration. The Ind-PyC0 molecules stand out completely due to their spectroscopic properties which prevent their evaluation by Ellman's and ThT assays. However, these molecules showed interesting features in the presence of preformed fibers. In particular, the strong increase in fluorescence of 3 in the presence of amyloid fibers is very promising for its use as a fibrillation fluorescent reporter dye.
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Affiliation(s)
| | - Olga Firstova
- Univ. Grenoble Alpes, CNRS, DPM, Grenoble, France; Univ. Grenoble Alpes, CNRS, DCM, Grenoble, France
| | - Andreea Botezatu Dediu
- Dunarea de Jos University of Galaţi, Faculty of Science and Environment, 111 Domneasca Street, 800201 Galaţi, Romania
| | | | - Bianca Furdui
- Dunarea de Jos University of Galaţi, Faculty of Science and Environment, 111 Domneasca Street, 800201 Galaţi, Romania
| | - Ioana Ottilia Ghinea
- Dunarea de Jos University of Galaţi, Faculty of Science and Environment, 111 Domneasca Street, 800201 Galaţi, Romania
| | - Aline Thomas
- Univ. Grenoble Alpes, CNRS, DPM, Grenoble, France
| | | | - Rodica Dinica
- Dunarea de Jos University of Galaţi, Faculty of Science and Environment, 111 Domneasca Street, 800201 Galaţi, Romania.
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Dai B, Zhong T, Chen ZX, Chen W, Zhang N, Liu XL, Wang LQ, Chen J, Liang Y. Myricetin slows liquid-liquid phase separation of Tau and activates ATG5-dependent autophagy to suppress Tau toxicity. J Biol Chem 2021; 297:101222. [PMID: 34560101 PMCID: PMC8551527 DOI: 10.1016/j.jbc.2021.101222] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 01/05/2023] Open
Abstract
Intraneuronal neurofibrillary tangles composed of Tau aggregates have been widely accepted as an important pathological hallmark of Alzheimer's disease. A current therapeutic avenue for treating Alzheimer's disease is aimed at inhibiting Tau accumulation with small molecules such as natural flavonoids. Liquid-liquid phase separation (LLPS) of Tau can lead to its aggregation, and Tau aggregates can then be degraded by autophagy. However, it is unclear whether natural flavonoids modulate the formation of phase-separated Tau droplets or promote autophagy and Tau clearance. Here, using confocal microscopy and fluorescence recovery after photobleaching assays, we report that a natural antioxidant flavonoid compound myricetin slows LLPS of full-length human Tau, shifting the equilibrium phase boundary to a higher protein concentration. This natural flavonoid also significantly inhibits pathological phosphorylation and abnormal aggregation of Tau in neuronal cells and blocks mitochondrial damage and apoptosis induced by Tau aggregation. Importantly, using coimmunoprecipitation and Western blotting, we show that treatment of cells with myricetin stabilizes the interaction between Tau and autophagy-related protein 5 (ATG5) to promote clearance of phosphorylated Tau to indirectly limit its aggregation. Consistently, this natural flavonoid inhibits mTOR pathway, activates ATG5-dependent Tau autophagy, and almost completely suppresses Tau toxicity in neuronal cells. Collectively, these results demonstrate how LLPS and abnormal aggregation of Tau are inhibited by natural flavonoids, bridging the gap between Tau LLPS and aggregation in neuronal cells, and also establish that myricetin could act as an ATG5-dependent autophagic activator to ameliorate the pathogenesis of Alzheimer's disease.
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Affiliation(s)
- Bin Dai
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China
| | - Tao Zhong
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China
| | - Zhi-Xian Chen
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China
| | - Wang Chen
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China
| | - Na Zhang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China
| | - Xiao-Ling Liu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China
| | - Li-Qiang Wang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China
| | - Jie Chen
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China
| | - Yi Liang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China.
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Pinzi L, Tinivella A, Rastelli G. Chemoinformatics Analyses of Tau Ligands Reveal Key Molecular Requirements for the Identification of Potential Drug Candidates against Tauopathies. Molecules 2021; 26:5039. [PMID: 34443629 PMCID: PMC8400687 DOI: 10.3390/molecules26165039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/08/2021] [Accepted: 08/16/2021] [Indexed: 11/16/2022] Open
Abstract
Tau is a highly soluble protein mainly localized at a cytoplasmic level in the neuronal cells, which plays a crucial role in the regulation of microtubule dynamic stability. Recent studies have demonstrated that several factors, such as hyperphosphorylation or alterations of Tau metabolism, may contribute to the pathological accumulation of protein aggregates, which can result in neuronal death and the onset of a number of neurological disorders called Tauopathies. At present, there are no available therapeutic remedies able to reduce Tau aggregation, nor are there any structural clues or guidelines for the rational identification of compounds preventing the accumulation of protein aggregates. To help identify the structural properties required for anti-Tau aggregation activity, we performed extensive chemoinformatics analyses on a dataset of Tau ligands reported in ChEMBL. The performed analyses allowed us to identify a set of molecular properties that are in common between known active ligands. Moreover, extensive analyses of the fragment composition of reported ligands led to the identification of chemical moieties and fragment combinations prevalent in the more active compounds. Interestingly, many of these fragments were arranged in recurring frameworks, some of which were clearly present in compounds currently under clinical investigation. This work represents the first in-depth chemoinformatics study of the molecular properties, constituting fragments and similarity profiles, of known Tau aggregation inhibitors. The datasets of compounds employed for the analyses, the identified molecular fragments and their combinations are made publicly available as supplementary material.
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Affiliation(s)
- Luca Pinzi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103/287, 41125 Modena, Italy; (L.P.); (A.T.)
| | - Annachiara Tinivella
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103/287, 41125 Modena, Italy; (L.P.); (A.T.)
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Giulio Rastelli
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103/287, 41125 Modena, Italy; (L.P.); (A.T.)
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Yang J, Agnihotri MV, Huseby CJ, Kuret J, Singer SJ. A theoretical study of polymorphism in VQIVYK fibrils. Biophys J 2021; 120:1396-1416. [PMID: 33571490 DOI: 10.1016/j.bpj.2021.01.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 01/07/2021] [Accepted: 01/11/2021] [Indexed: 02/06/2023] Open
Abstract
The VQIVYK fragment from the Tau protein, also known as PHF6, is essential for aggregation of Tau into neurofibrillary lesions associated with neurodegenerative diseases. VQIVYK itself forms amyloid fibrils composed of paired β-sheets. Therefore, the full Tau protein and VQIVYK fibrils have been intensively investigated. A central issue in these studies is polymorphism, the ability of a protein to fold into more than one structure. Using all-atom molecular simulations, we generate five stable polymorphs of VQIVYK fibrils, establish their relative free energy with umbrella sampling methods, and identify the side chain interactions that provide stability. The two most stable polymorphs, which have nearly equal free energy, are formed by interdigitation of the mostly hydrophobic VIY "face" sides of the β-sheets. Another stable polymorph is formed by interdigitation of the QVK "back" sides. When we turn to examine structures from cryo-electron microscopy experiments on Tau filaments taken from diseased patients or generated in vitro, we find that the pattern of side chain interactions found in the two most stable face-to-face as well as the back-to-back polymorphs are recapitulated in amyloid structures of the full protein. Thus, our studies suggest that the interactions stabilizing PHF6 fibrils explain the amyloidogenicity of the VQIVYK motif within the full Tau protein and provide justification for the use of VQIVYK fibrils as a test bed for the design of molecules that identify or inhibit amyloid structures.
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Affiliation(s)
- Jaehoon Yang
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio
| | - Mithila V Agnihotri
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio
| | - Carol J Huseby
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio
| | - Jeff Kuret
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio; Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, Ohio.
| | - Sherwin J Singer
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio; Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio.
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Šmidlehner T, Bonnet H, Chierici S, Piantanida I. Fluorescently-labelled amyloid paired helical filaments (PHF) in monitoring its fibrillation kinetics. Bioorg Chem 2020; 104:104196. [DOI: 10.1016/j.bioorg.2020.104196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/13/2020] [Accepted: 08/15/2020] [Indexed: 10/23/2022]
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12
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Monteiro KL, Alcântara MGDS, de Aquino TM, da Silva-Júnior EF. Tau Protein Aggregation in Alzheimer's Disease: Recent Advances in the Development of Novel Therapeutic Agents. Curr Pharm Des 2020; 26:1682-1692. [DOI: 10.2174/1381612826666200414164038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 03/26/2020] [Indexed: 12/18/2022]
Abstract
:
Major research in Alzheimer’s disease (AD) related to disease-modifying agents is concentrated on
pharmacological approaches related to diagnostic markers, neurofibrillary tangles and amyloid plaques. Although
most studies focus on anti-amyloid strategies, investigations on tau protein have produced significant advances in
the modulation of the pathophysiology of several neurodegenerative diseases. Since the discovery of phenothiazines
as tau protein aggregation inhibitors (TAGIs), many additional small molecule inhibitors have been discovered
and characterized in biological model systems, which exert their interaction effects by covalent and noncovalent
means. In this paper, we summarize the latest advances in the discovery and development of tau aggregation
inhibitors using a specialized approach in their chemical classes. The design of new TAGIs and their encouraging
use in in vivo and clinical trials support their potential therapeutic use in AD.
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Affiliation(s)
- Kadja L.C. Monteiro
- Laboratory of Medicinal Chemistry, Institute of Pharmaceutical Sciences, Federal University of Alagoas, Maceió, Brazil
| | - Marcone G. dos S. Alcântara
- Laboratory of Medicinal Chemistry, Institute of Pharmaceutical Sciences, Federal University of Alagoas, Maceió, Brazil
| | - Thiago M. de Aquino
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Maceió, Brazil
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13
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De Simone A, Naldi M, Tedesco D, Bartolini M, Davani L, Andrisano V. Advanced analytical methodologies in Alzheimer’s disease drug discovery. J Pharm Biomed Anal 2020; 178:112899. [DOI: 10.1016/j.jpba.2019.112899] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 12/13/2022]
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14
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Shi CJ, Peng W, Zhao JH, Yang HL, Qu LL, Wang C, Kong LY, Wang XB. Usnic acid derivatives as tau-aggregation and neuroinflammation inhibitors. Eur J Med Chem 2019; 187:111961. [PMID: 31865017 DOI: 10.1016/j.ejmech.2019.111961] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 12/09/2019] [Accepted: 12/09/2019] [Indexed: 12/26/2022]
Abstract
Accumulation of tau protein aggregation plays a crucial role in neurodegenerative diseases, such as Alzheimer's disease (AD). Uncontrollable neuroinflammation and tau pathology form a vicious circle that further aggravates AD progression. Herein, we reported the synthesis of usnic acid derivatives and evaluation of their inhibitory activities against tau-aggregation and neuroinflammation. The inhibitory activity of the derivatives against the self-fibrillation of the hexapeptide AcPHF6 was initially screened by ThT fluorescence assay. Using circular dichroism and transmission electron microscopy, compound 30 showed the most potent inhibitory activity against AcPHF6 self-fibrillation. Compound 30 was further confirmed to inhibit the aggregation of full-length 2N4R tau protein by a heparin-induced mechanism. In addition, we investigated the anti-inflammatory activity of compound 30, and showed that compared with sodium usnate, it reduced NO release in LPS-stimulated mouse microglia BV2 cells. More importantly, 30 showed significant protective effects against okadaic acid-induced memory impairment in rats. Thus, 30 was a novel tau-aggregation and neuroinflammation inhibitor that represented a potential therapeutic candidate for AD.
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Affiliation(s)
- Cun-Jian Shi
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Wan Peng
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Jin-Hua Zhao
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Hua-Li Yang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Lai-Liang Qu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Cheng Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
| | - Xiao-Bing Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
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15
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Olleik H, Yahiaoui S, Roulier B, Courvoisier-Dezord E, Perrier J, Pérès B, Hijazi A, Baydoun E, Raymond J, Boumendjel A, Maresca M, Haudecoeur R. Aurone derivatives as promising antibacterial agents against resistant Gram-positive pathogens. Eur J Med Chem 2019; 165:133-141. [PMID: 30665143 DOI: 10.1016/j.ejmech.2019.01.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 12/18/2022]
Abstract
A set of variously substituted aurones was synthesized and evaluated against Methicillin-Resistant S. aureus (MRSA) and P. aeruginosa. Several analogues were found active against MRSA, but no effect was recorded against P. aeruginosa. Compounds 27, 30 and 33 showed low cytotoxicity, and were tested against a full range of bacterial (Gram-positive and Gram-negative) and fungal species, including resistant strains. These aurones displayed a selective inhibition of Gram-positive bacteria with excellent Therapeutic Index values, while showing no significant action on several Gram-negative strains, H. pylori and V. alginolyticus being the only susceptible strains among the Gram-negative bacteria tested. A permeabilization assay showed that the antibacterial activity of at least some of the aurones could be linked to alterations of the bacterial membrane. Overall, this study endorses the use of the aurone scaffold for the development of new potent and selective antibacterial agents.
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Affiliation(s)
- Hamza Olleik
- Aix Marseille Univ., CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Samir Yahiaoui
- Univ. Grenoble Alpes, CNRS, DPM UMR 5063, F-38041, Grenoble, France
| | - Brayan Roulier
- Univ. Grenoble Alpes, CNRS, DPM UMR 5063, F-38041, Grenoble, France
| | | | - Josette Perrier
- Aix Marseille Univ., CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Basile Pérès
- Univ. Grenoble Alpes, CNRS, DPM UMR 5063, F-38041, Grenoble, France
| | - Akram Hijazi
- Lebanese University, Doctoral School of Science and Technology, PRASE, Beirut, Lebanon
| | - Elias Baydoun
- American University of Beirut, Department of Biology, Beirut, 1107 2020, Lebanon
| | - Josette Raymond
- Université Paris 5, Hôpital Cochin, Service de bactériologie, France
| | | | - Marc Maresca
- Aix Marseille Univ., CNRS, Centrale Marseille, iSm2, Marseille, France.
| | - Romain Haudecoeur
- Univ. Grenoble Alpes, CNRS, DPM UMR 5063, F-38041, Grenoble, France.
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16
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Gandini A, Bartolini M, Tedesco D, Martinez-Gonzalez L, Roca C, Campillo NE, Zaldivar-Diez J, Perez C, Zuccheri G, Miti A, Feoli A, Castellano S, Petralla S, Monti B, Rossi M, Moda F, Legname G, Martinez A, Bolognesi ML. Tau-Centric Multitarget Approach for Alzheimer’s Disease: Development of First-in-Class Dual Glycogen Synthase Kinase 3β and Tau-Aggregation Inhibitors. J Med Chem 2018; 61:7640-7656. [DOI: 10.1021/acs.jmedchem.8b00610] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Annachiara Gandini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
- Laboratory of Prion Biology, Department of Neuroscience, Scuola Internazionale Superiore di Studi Avanzati (SISSA), Via Bonomea 265, I-34136 Trieste, Italy
| | - Manuela Bartolini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
| | - Daniele Tedesco
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
| | | | - Carlos Roca
- Centro de Investigaciones Biologica, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Nuria E. Campillo
- Centro de Investigaciones Biologica, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Josefa Zaldivar-Diez
- Centro de Investigaciones Biologica, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Concepción Perez
- Instituto de Quimica Medica, CSIC, Calle Juan de la Cierva 3, 28006 Madrid, Spain
| | - Giampaolo Zuccheri
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
- S3 Center of the Institute of Nanosciences, Italian National Research Council (CNR), I-41125 Modena, Italy
| | - Andrea Miti
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
- S3 Center of the Institute of Nanosciences, Italian National Research Council (CNR), I-41125 Modena, Italy
| | - Alessandra Feoli
- EpigeneticMedChemLab, Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Italy
| | - Sabrina Castellano
- EpigeneticMedChemLab, Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Italy
| | - Sabrina Petralla
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
| | - Barbara Monti
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
| | - Martina Rossi
- Laboratory of Prion Biology, Department of Neuroscience, Scuola Internazionale Superiore di Studi Avanzati (SISSA), Via Bonomea 265, I-34136 Trieste, Italy
| | - Fabio Moda
- Fondazione IRCCS Istituto Neurologico Carlo Besta, via Celoria 11, I-20133 Milan, Italy
| | - Giuseppe Legname
- Laboratory of Prion Biology, Department of Neuroscience, Scuola Internazionale Superiore di Studi Avanzati (SISSA), Via Bonomea 265, I-34136 Trieste, Italy
| | - Ana Martinez
- Centro de Investigaciones Biologica, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Maria Laura Bolognesi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
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17
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Design and synthesis of 2,6-disubstituted-8-amino imidazo[1,2a]pyridines, a promising privileged structure. Bioorg Med Chem 2018; 26:3296-3307. [DOI: 10.1016/j.bmc.2018.04.057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 04/23/2018] [Accepted: 04/27/2018] [Indexed: 12/20/2022]
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18
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Belostozky A, Richman M, Lisniansky E, Tovchygrechko A, Chill JH, Rahimipour S. Inhibition of tau-derived hexapeptide aggregation and toxicity by a self-assembled cyclic d,l-α-peptide conformational inhibitor. Chem Commun (Camb) 2018; 54:5980-5983. [DOI: 10.1039/c8cc01233d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Self-assembled cyclic d,l-α-peptide CP-2 cross-interacts with tau-derived AcPHF6 peptide to inhibit its aggregation, membrane perturbation and toxicity.
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Affiliation(s)
- A. Belostozky
- Department of Chemistry
- Bar-Ilan University
- Ramat-Gan 5290002
- Israel
| | - M. Richman
- Department of Chemistry
- Bar-Ilan University
- Ramat-Gan 5290002
- Israel
| | - E. Lisniansky
- Department of Chemistry
- Bar-Ilan University
- Ramat-Gan 5290002
- Israel
| | - A. Tovchygrechko
- Department of Chemistry
- Bar-Ilan University
- Ramat-Gan 5290002
- Israel
| | - J. H. Chill
- Department of Chemistry
- Bar-Ilan University
- Ramat-Gan 5290002
- Israel
| | - S. Rahimipour
- Department of Chemistry
- Bar-Ilan University
- Ramat-Gan 5290002
- Israel
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19
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Verwilst P, Kim HR, Seo J, Sohn NW, Cha SY, Kim Y, Maeng S, Shin JW, Kwak JH, Kang C, Kim JS. Rational Design of in Vivo Tau Tangle-Selective Near-Infrared Fluorophores: Expanding the BODIPY Universe. J Am Chem Soc 2017; 139:13393-13403. [PMID: 28857559 DOI: 10.1021/jacs.7b05878] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The elucidation of the cause of Alzheimer's disease remains one of the greatest questions in neurodegenerative research. The lack of highly reliable low-cost sensors to study the structural changes in key proteins during the progression of the disease is a contributing factor to this lack of insight. In the current work, we describe the rational design and synthesis of two fluorescent BODIPY-based probes, named Tau 1 and Tau 2. The probes were evaluated on the molecular surface formed by a fibril of the PHF6 (306VQIVYK311) tau fragment using molecular docking studies to provide a potential molecular model to rationalize the selectivity of the new probes as compared to a homologous Aβ-selective probe. The probes were synthesized in a few steps from commercially available starting products and could thus prove to be highly cost-effective. We demonstrated the excellent photophysical properties of the dyes, such as a large Stokes shift and emission in the near-infrared window of the electromagnetic spectrum. The probes demonstrated a high selectivity for self-assembled microtubule-associated protein tau (Tau protein), in both solution and cell-based experiments. Moreover, the administration to an acute murine model of tauopathy clearly revealed the staining of self-assembled hyperphosphorylated tau protein in pathologically relevant hippocampal brain regions. Tau 1 demonstrated efficient blood-brain barrier penetrability and demonstrated a clear selectivity for tau tangles over Aβ plaques, as well as the capacity for in vivo imaging in a transgenic mouse model. The current work could open up avenues for the cost-effective monitoring of the tau protein aggregation state in animal models as well as tissue staining. Furthermore, these fluorophores could serve as the basis for the development of clinically relevant sensors, for example based on PET imaging.
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Affiliation(s)
- Peter Verwilst
- Department of Chemistry, Korea University , Seoul 02841, Korea
| | - Hye-Ri Kim
- School of East-West Medical Science, Kyung Hee University , Yongin 17104, Korea
| | - Jinho Seo
- Department of Chemistry, Korea University , Seoul 02841, Korea
| | - Nak-Won Sohn
- School of East-West Medical Science, Kyung Hee University , Yongin 17104, Korea
| | - Seung-Yun Cha
- School of East-West Medical Science, Kyung Hee University , Yongin 17104, Korea
| | - Yeongmin Kim
- School of East-West Medical Science, Kyung Hee University , Yongin 17104, Korea
| | - Sungho Maeng
- School of East-West Medical Science, Kyung Hee University , Yongin 17104, Korea
| | - Jung-Won Shin
- School of East-West Medical Science, Kyung Hee University , Yongin 17104, Korea
| | - Jong Hwan Kwak
- School of Pharmacy, Sungkyunkwan University , Suwon 16419, Korea
| | - Chulhun Kang
- School of East-West Medical Science, Kyung Hee University , Yongin 17104, Korea
| | - Jong Seung Kim
- Department of Chemistry, Korea University , Seoul 02841, Korea
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20
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Discovery and structure-activity relationship studies of 2-benzylidene-2,3-dihydro-1 H -inden-1-one and benzofuran-3(2 H )-one derivatives as a novel class of potential therapeutics for inflammatory bowel disease. Eur J Med Chem 2017. [DOI: 10.1016/j.ejmech.2017.06.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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21
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Schartner J, Nabers A, Budde B, Lange J, Hoeck N, Wiltfang J, Kötting C, Gerwert K. An ATR-FTIR Sensor Unraveling the Drug Intervention of Methylene Blue, Congo Red, and Berberine on Human Tau and Aβ. ACS Med Chem Lett 2017; 8:710-714. [PMID: 28740603 DOI: 10.1021/acsmedchemlett.7b00079] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 06/09/2017] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's disease affects millions of human beings worldwide. The disease progression is characterized by the formation of plaques and neurofibrillary tangles in the brain, which are based on aggregation processes of the Aβ peptide and tau protein. Today there is no cure and even no in vitro assay available for the identification of drug candidates, which provides direct information concerning the protein secondary structure label-free. Therefore, we developed an attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) sensor, which uses surface bound antibodies to immobilize a desired target protein. The secondary structure of the protein can be evaluated based on the secondary structure sensitive frequency of the amide I band. Direct information about the effect of a drug candidate on the secondary structure distribution of the total target protein fraction within the respective body fluid can be detected by a frequency shift of the amide I band. Thereby, the extent of the amide I shift is indicative for the compound efficiency. The functionality of this approach was demonstrated by the quantification of the effect of the drug candidate methylene blue on the pathogenic misfolded tau protein as extracted from cerebrospinal fluid (CSF). Methylene blue induces a shift from pathogenic folded β-sheet dominated to the healthy monomeric state. A similar effect was observed for congo red on pathogenic Aβ isoforms from CSF. In addition, the effect of berberine on synthetic Aβ1-42 is studied. Berberine seems to decelerate the aggregation process of synthetic Aβ1-42 peptides.
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Affiliation(s)
- Jonas Schartner
- Department
of Biophysics, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Andreas Nabers
- Department
of Biophysics, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Brian Budde
- Department
of Biophysics, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Julia Lange
- Department
of Biophysics, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Nina Hoeck
- Department
of Biophysics, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Jens Wiltfang
- Department
of Psychiatry and Psychotherapy, Georg-August-University Göttingen, University Medical
Center, 37099 Göttingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), 37099 Göttingen, Germany
- iBiMED,
Medical Sciences Department, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carsten Kötting
- Department
of Biophysics, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Klaus Gerwert
- Department
of Biophysics, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
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22
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Virgone-Carlotta A, Dufour E, Bacot S, Ahmadi M, Cornou M, Moni L, Garcia J, Chierici S, Garin D, Marti-Batlle D, Perret P, Ghersi-Egea J, Moulin Sallanon M, Fagret D, Ghezzi C. New diketopiperazines as vectors for peptide protection and brain delivery: Synthesis and biological evaluation. J Labelled Comp Radiopharm 2016; 59:517-530. [DOI: 10.1002/jlcr.3442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 07/10/2016] [Accepted: 08/03/2016] [Indexed: 12/13/2022]
Affiliation(s)
| | - E. Dufour
- Université Grenoble Alpes; Grenoble France
- Département de Chimie Moléculaire; Centre National de la Recherche Scientifique, UMR 5250; Grenoble France
| | - S. Bacot
- INSERM U1039; La Tronche France
- Université Grenoble Alpes; Grenoble France
| | - M. Ahmadi
- INSERM U1039; La Tronche France
- Université Grenoble Alpes; Grenoble France
| | - M. Cornou
- Université Grenoble Alpes; Grenoble France
- Département de Chimie Moléculaire; Centre National de la Recherche Scientifique, UMR 5250; Grenoble France
| | - L. Moni
- Université Grenoble Alpes; Grenoble France
- Département de Chimie Moléculaire; Centre National de la Recherche Scientifique, UMR 5250; Grenoble France
| | - J. Garcia
- Université Grenoble Alpes; Grenoble France
- Département de Chimie Moléculaire; Centre National de la Recherche Scientifique, UMR 5250; Grenoble France
| | - S. Chierici
- Université Grenoble Alpes; Grenoble France
- Département de Chimie Moléculaire; Centre National de la Recherche Scientifique, UMR 5250; Grenoble France
| | - D. Garin
- INSERM U1039; La Tronche France
- Université Grenoble Alpes; Grenoble France
| | - D. Marti-Batlle
- INSERM U1039; La Tronche France
- Université Grenoble Alpes; Grenoble France
| | - P. Perret
- INSERM U1039; La Tronche France
- Université Grenoble Alpes; Grenoble France
| | - J.F. Ghersi-Egea
- INSERM, U1028; CNRS, UMR5292; Lyon France
- BIP Platform, Lyon Neuroscience Research Center; Université Lyon 1; Lyon France
| | - M. Moulin Sallanon
- INSERM U1039; La Tronche France
- Université Grenoble Alpes; Grenoble France
| | - D. Fagret
- INSERM U1039; La Tronche France
- Université Grenoble Alpes; Grenoble France
| | - C. Ghezzi
- INSERM U1039; La Tronche France
- Université Grenoble Alpes; Grenoble France
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