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Tang J, Sun R, Wan J, Xu Z, Zou Y, Zhang Q. Atomic insights into the inhibition of R3 domain of tau protein by epigallocatechin gallate, quercetin and gallic acid. Biophys Chem 2024; 305:107142. [PMID: 38088006 DOI: 10.1016/j.bpc.2023.107142] [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: 08/25/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 01/03/2024]
Abstract
Inhibiting tau protein aggregation has become a prospective avenue for the therapeutic development of tauopathies. The third microtubule-binding repeat (R3) domain of tau is confirmed as the most aggregation-favorable fragment of the whole protein. As dimerization is the first step of the aggregation of tau into amyloid fibrils, impeding the dimerization of the R3 domain is critical to prevent the full-length tau aggregation. Natural polyphenol small molecules epigallocatechin gallate (EGCG), quercetin (QE) and gallic acid (GA) are proven to inhibit the aggregation of the full-length recombinant tau (For EGCG and QE) or the R3 domain (For GA) of tau in vitro. However, the underlying molecular mechanisms of the inhibitive effects on the R3 domain of tau remain largely unknown. In this study, we conducted numerous all-atom molecular dynamics simulations on R3 dimers with and without EGCG, QE or GA, respectively. The results reveal that all three molecules can effectively decrease the β structure composition of the R3 dimer, induce the dimer to adopt loosely-packed conformations, and weaken interchain interactions, thus impeding the dimerization of the R3 peptide chains. The specific preferentially binding sites for the three molecules exhibit similarities and differences. Hydrophobic, π-π stacking and hydrogen-bonding interactions collectively drive EGCG, QE and GA respectively binding on the R3 dimer, while QE also binds with the dimer through cation-π interaction. Given the incurable nature of tauopathies hitherto, our research provides helpful knowledge for the development of drugs to treat tauopathies.
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Affiliation(s)
- Jiaxing Tang
- School of Physical Education, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, People's Republic of China
| | - Ruiqing Sun
- School of Physical Education, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, People's Republic of China
| | - Jiaqian Wan
- School of Physical Education, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, People's Republic of China
| | - Zhengdong Xu
- School of Physical Education, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, People's Republic of China
| | - Yu Zou
- Department of Sport and Exercise Science, College of Education, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China.
| | - Qingwen Zhang
- School of Physical Education, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, People's Republic of China.
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2
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Khan T, Waseem R, Shahid M, Ansari J, Ahanger IA, Hassan I, Islam A. Recent advancement in therapeutic strategies for Alzheimer's disease: Insights from clinical trials. Ageing Res Rev 2023; 92:102113. [PMID: 37918760 DOI: 10.1016/j.arr.2023.102113] [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: 09/11/2023] [Revised: 10/16/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
Alzheimer's disease (AD) is the most prevalent form of dementia, characterized by the presence of plaques of amyloid beta and Tau proteins. There is currently no permanent cure for AD; the only medications approved by the FDA for mild to moderate AD are cholinesterase inhibitors, NMDA receptor antagonists, and immunotherapies against core pathophysiology, that provide temporary relief only. Researchers worldwide have made significant attempts to find new targets and develop innovative therapeutic molecules to treat AD. The FDA-approved drugs are palliative and couldn't restore the damaged neuron cells of AD. Stem cells have self-differentiation properties, making them prospective therapeutics to treat AD. The promising results in pre-clinical studies of stem cell therapy for AD seek attention worldwide. Various stem cells, mainly mesenchymal stem cells, are currently in different phases of clinical trials and need more advancements to take this therapy to the translational level. Here, we review research from the past decade that has identified several hypotheses related to AD pathology. Moreover, this article also focuses on the recent advancement in therapeutic strategies for AD treatment including immunotherapy and stem cell therapy detailing the clinical trials that are currently undergoing development.
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Affiliation(s)
- Tanzeel Khan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Rashid Waseem
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohammad Shahid
- Department of Basic Medical Sciences, College of Medicine, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Jaoud Ansari
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Ishfaq Ahmad Ahanger
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India; Department of Clinical Biochemistry, University of Kashmir,190006, India
| | - Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India.
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Jerom JP, Madhukumar S, Nair RH, Narayanan SP. Anti-amyloid potential of some phytochemicals against Aβ-peptide and α-synuclein, tau, prion, and Huntingtin protein. Drug Discov Today 2023; 28:103802. [PMID: 37858630 DOI: 10.1016/j.drudis.2023.103802] [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: 08/11/2023] [Revised: 10/04/2023] [Accepted: 10/12/2023] [Indexed: 10/21/2023]
Abstract
Some molecules self-assemble to create complex structures through molecular self-assembly. Hydrogel preparation, tissue repair, and therapeutic drug delivery are a few applications of molecular self-assembly. However, the self-assembly of amino acids, peptides, and proteins forms amyloid fibrils, resulting in various disorders, most notably neurodegenerative ailments. Examples include the self-assembly of phenylalanine, which causes phenylketonuria; Aβ, which causes Alzheimer's disease; the tau protein, which causes both Alzheimer's and Parkinson's diseases; and α-synuclein, which causes Parkinson's illness. This review provides information related to phytochemicals of great significance that can prevent the formation of, or destabilize, amino acid, peptide, and protein self-assemblies.
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Affiliation(s)
| | - Sooryalekshmi Madhukumar
- NMR Facility, Institute for Integrated Programmes and Research in Basic Sciences. Mahatma Gandhi University, Kottayam, Kerala 686560, India
| | | | - Sunilkumar Puthenpurackal Narayanan
- NMR Facility, Institute for Integrated Programmes and Research in Basic Sciences. Mahatma Gandhi University, Kottayam, Kerala 686560, India.
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Alexander C, Parsaee A, Vasefi M. Polyherbal and Multimodal Treatments: Kaempferol- and Quercetin-Rich Herbs Alleviate Symptoms of Alzheimer's Disease. BIOLOGY 2023; 12:1453. [PMID: 37998052 PMCID: PMC10669725 DOI: 10.3390/biology12111453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/08/2023] [Accepted: 11/14/2023] [Indexed: 11/25/2023]
Abstract
Alzheimer's Disease (AD) is a progressive neurodegenerative disorder impairing cognition and memory in the elderly. This disorder has a complex etiology, including senile plaque and neurofibrillary tangle formation, neuroinflammation, oxidative stress, and damaged neuroplasticity. Current treatment options are limited, so alternative treatments such as herbal medicine could suppress symptoms while slowing cognitive decline. We followed PRISMA guidelines to identify potential herbal treatments, their associated medicinal phytochemicals, and the potential mechanisms of these treatments. Common herbs, including Ginkgo biloba, Camellia sinensis, Glycyrrhiza uralensis, Cyperus rotundus, and Buplerum falcatum, produced promising pre-clinical results. These herbs are rich in kaempferol and quercetin, flavonoids with a polyphenolic structure that facilitate multiple mechanisms of action. These mechanisms include the inhibition of Aβ plaque formation, a reduction in tau hyperphosphorylation, the suppression of oxidative stress, and the modulation of BDNF and PI3K/AKT pathways. Using pre-clinical findings from quercetin research and the comparatively limited data on kaempferol, we proposed that kaempferol ameliorates the neuroinflammatory state, maintains proper cellular function, and restores pro-neuroplastic signaling. In this review, we discuss the anti-AD mechanisms of quercetin and kaempferol and their limitations, and we suggest a potential alternative treatment for AD. Our findings lead us to conclude that a polyherbal kaempferol- and quercetin-rich cocktail could treat AD-related brain damage.
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Affiliation(s)
- Claire Alexander
- Department of Biology, Lamar University, Beaumont, TX 77705, USA
| | - Ali Parsaee
- Biological Science, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Maryam Vasefi
- Department of Biology, Lamar University, Beaumont, TX 77705, USA
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Hedna R, DiMaio A, Robin M, Allegro D, Tatoni M, Peyrot V, Barbier P, Kovacic H, Breuzard G. 2-Aminothiazole-Flavonoid Hybrid Derivatives Binding to Tau Protein and Responsible for Antitumor Activity in Glioblastoma. Int J Mol Sci 2023; 24:15050. [PMID: 37894731 PMCID: PMC10606064 DOI: 10.3390/ijms242015050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/04/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023] Open
Abstract
Tau protein has been described for several decades as a promoter of tubulin assembly into microtubules. Dysregulation or alterations in Tau expression have been related to various brain cancers, including the highly aggressive and lethal brain tumor glioblastoma multiform (GBM). In this respect, Tau holds significant promise as a target for the development of novel therapies. Here, we examined the structure-activity relationship of a new series of seventeen 2-aminothiazole-fused to flavonoid hybrid compounds (TZF) on Tau binding, Tau fibrillation, and cellular effects on Tau-expressing cancer cells. By spectrofluorometric approach, we found that two compounds, 2 and 9, demonstrated high affinity for Tau and exhibited a strong propensity to inhibit Tau fibrillation. Then, the biological activity of these compounds was evaluated on several Tau-expressing cells derived from glioblastoma. The two lead compounds displayed a high anti-metabolic activity on cells related to an increased fission of the mitochondria network. Moreover, we showed that both compounds induced microtubule bundling within newly formed neurite-like protrusions, as well as with defection of cell migration. Taken together, our results provide a strong experimental basis to develop new potent molecules targeting Tau-expressing cancer cells, such as GBM.
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Affiliation(s)
- Rayane Hedna
- Faculté des Sciences Médicales et Paramédicales, Institut de Neurophysiopathologie (INP), UMR 7051, CNRS, Aix Marseille Université, 13005 Marseille, France; (R.H.); (D.A.); (M.T.); (V.P.); (P.B.); (H.K.)
| | - Attilio DiMaio
- Faculté de Pharmacie, Institut Méditerranéen de Biodiversité et Ecologie Marine et Continentale (IMBE), UMR 7263, CNRS, IRD 237, Aix-Marseille Université, 13005 Marseille, France; (A.D.); (M.R.)
| | - Maxime Robin
- Faculté de Pharmacie, Institut Méditerranéen de Biodiversité et Ecologie Marine et Continentale (IMBE), UMR 7263, CNRS, IRD 237, Aix-Marseille Université, 13005 Marseille, France; (A.D.); (M.R.)
| | - Diane Allegro
- Faculté des Sciences Médicales et Paramédicales, Institut de Neurophysiopathologie (INP), UMR 7051, CNRS, Aix Marseille Université, 13005 Marseille, France; (R.H.); (D.A.); (M.T.); (V.P.); (P.B.); (H.K.)
| | - Mario Tatoni
- Faculté des Sciences Médicales et Paramédicales, Institut de Neurophysiopathologie (INP), UMR 7051, CNRS, Aix Marseille Université, 13005 Marseille, France; (R.H.); (D.A.); (M.T.); (V.P.); (P.B.); (H.K.)
| | - Vincent Peyrot
- Faculté des Sciences Médicales et Paramédicales, Institut de Neurophysiopathologie (INP), UMR 7051, CNRS, Aix Marseille Université, 13005 Marseille, France; (R.H.); (D.A.); (M.T.); (V.P.); (P.B.); (H.K.)
| | - Pascale Barbier
- Faculté des Sciences Médicales et Paramédicales, Institut de Neurophysiopathologie (INP), UMR 7051, CNRS, Aix Marseille Université, 13005 Marseille, France; (R.H.); (D.A.); (M.T.); (V.P.); (P.B.); (H.K.)
| | - Hervé Kovacic
- Faculté des Sciences Médicales et Paramédicales, Institut de Neurophysiopathologie (INP), UMR 7051, CNRS, Aix Marseille Université, 13005 Marseille, France; (R.H.); (D.A.); (M.T.); (V.P.); (P.B.); (H.K.)
| | - Gilles Breuzard
- Faculté des Sciences Médicales et Paramédicales, Institut de Neurophysiopathologie (INP), UMR 7051, CNRS, Aix Marseille Université, 13005 Marseille, France; (R.H.); (D.A.); (M.T.); (V.P.); (P.B.); (H.K.)
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Xiang L, Wang Y, Liu S, Liu B, Jin X, Cao X. Targeting Protein Aggregates with Natural Products: An Optional Strategy for Neurodegenerative Diseases. Int J Mol Sci 2023; 24:11275. [PMID: 37511037 PMCID: PMC10379780 DOI: 10.3390/ijms241411275] [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: 05/31/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Protein aggregation is one of the hallmarks of aging and aging-related diseases, especially for the neurodegenerative diseases (NDs) such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), Amyotrophic lateral sclerosis (ALS), and others. In these diseases, many pathogenic proteins, such as amyloid-β, tau, α-Syn, Htt, and FUS, form aggregates that disrupt the normal physiological function of cells and lead to associated neuronal lesions. Protein aggregates in NDs are widely recognized as one of the important targets for the treatment of these diseases. Natural products, with their diverse biological activities and rich medical history, represent a great treasure trove for the development of therapeutic strategies to combat disease. A number of in vitro and in vivo studies have shown that natural products, by virtue of their complex molecular scaffolds that specifically bind to pathogenic proteins and their aggregates, can inhibit the formation of aggregates, disrupt the structure of aggregates and destabilize them, thereby alleviating conditions associated with NDs. Here, we systematically reviewed studies using natural products to improve disease-related symptoms by reducing or inhibiting the formation of five pathogenic protein aggregates associated with NDs. This information should provide valuable insights into new directions and ideas for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Lingzhi Xiang
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China
| | - Yanan Wang
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China
| | - Beidong Liu
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China
- Department of Chemistry and Molecular Biology, University of Gothenburg, 41390 Gothenburg, Sweden
| | - Xuejiao Jin
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China
| | - Xiuling Cao
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China
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Tang J, Zou Y, Gong Y, Xu Z, Wan J, Wei G, Zhang Q. Molecular Mechanism in the Disruption of Chronic Traumatic Encephalopathy-Related R3-R4 Tau Protofibril by Quercetin and Gallic Acid: Similarities and Differences. ACS Chem Neurosci 2023; 14:897-908. [PMID: 36749931 DOI: 10.1021/acschemneuro.2c00688] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Chronic traumatic encephalopathy (CTE) is a unique progressive neurodegenerative tauopathy pathologically related to the aggregation of the tau protein to neurofibrillary tangles. Disrupting tau oligomers (protofibril) is a promising strategy to prevent CTE. Quercetin (QE) and gallic acid (GA), two polyphenol small molecules abundant in natural crops, were proved to inhibit recombinant tau and the R3 fragment of human full-length tau in vitro. However, their disruptive effect on CTE-related protofibril and the underlying molecular mechanism remain elusive. Cryo-electron microscopy resolution reveals that the R3-R4 fragment of tau forms the core of the CTE-related tau protofibril. In this study, we conducted extensive all-atom molecular dynamics simulations on CTE-related R3-R4 tau protofibril with and without QE/GA molecules. The results disclose that both QE and GA can disrupt the global structure of the protofibril, while GA shows a relatively strong effect. The binding sites, exact binding patterns, and disruptive modes for the two molecules show similarities and differences. Strikingly, both QE and GA can insert into the hydrophobic cavity of the protofibril, indicating they have the potential to compete for the space in the cavity with aggregation cofactors unique to CTE-related protofibril and thus impede the further aggregation of the tau protein. Due to relatively short time scale, our study captures the early disruptive mechanism of CTE-related R3-R4 tau protofibril by QE/GA. However, our research does provide valuable knowledge for the design of supplements or drugs to prevent or delay the development of CTE.
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Affiliation(s)
- Jiaxing Tang
- School of Physical Education, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, People's Republic of China
| | - Yu Zou
- Department of Sport and Exercise Science, College of Education, Zhejiang University, 886 Yuhangtang Road, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Yehong Gong
- School of Sports Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Zhengdong Xu
- School of Physical Education, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, People's Republic of China
| | - Jiaqian Wan
- School of Physical Education, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, People's Republic of China
| | - Guanghong Wei
- Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory for Computational Physical Sciences (Ministry of Education), Fudan University, Shanghai 200438, People's Republic of China
| | - Qingwen Zhang
- School of Physical Education, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, People's Republic of China
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Khan S, Hassan MI, Shahid M, Islam A. Nature's Toolbox Against Tau Aggregation: An Updated Review of Current Research. Ageing Res Rev 2023; 87:101924. [PMID: 37004844 DOI: 10.1016/j.arr.2023.101924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/21/2023] [Accepted: 03/30/2023] [Indexed: 04/03/2023]
Abstract
Tau aggregation is a hallmark of several neurodegenerative disorders, such as Alzheimer's disease (AD), frontotemporal dementia, and progressive supranuclear palsy. Hyperphosphorylated tau is believed to contribute to the degeneration of neurons and the development of these complex diseases. Therefore, one potential treatment for these illnesses is to prevent or counteract tau aggregation. In recent years, interest has been increasing in developing nature-derived tau aggregation inhibitors as a potential treatment for neurodegenerative disorders. Researchers have become increasingly interested in natural compounds with multifunctional features, such as flavonoids, alkaloids, resveratrol, and curcumin, since these molecules can interact simultaneously with the various targets of AD. Recent studies have demonstrated that several natural compounds can inhibit tau aggregation and promote the disassembly of pre-formed tau aggregates. Nature-derived tau aggregation inhibitors hold promise as a potential treatment for neurodegenerative disorders. However, it is important to note that more research is needed to fully understand the mechanisms by which these compounds exert their effects and their safety and efficacy in preclinical and clinical studies. Nature-derived inhibitors of tau aggregation are a promising new direction in the research of neurodegenerative complexities. This review focuses on the natural products that have proven to be a rich supply for inhibitors in tau aggregation and their uses in neurodegenerative complexities, including AD.
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Campo MG, Corral GM. Structural, dynamic, and hydration properties of quercetin and its aggregates in solution. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:294001. [PMID: 35472688 DOI: 10.1088/1361-648x/ac6a99] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
Quercetin is a flavonoid present in the human diet with multiple health benefits. Quercetin solutions are inhomogeneous even at very low concentrations due to quercetin's tendency to aggregate. We simulate, using molecular dynamics, three systems of quercetin solutions: infinite dilution, 0.22 M, and 0.46 M. The systems at the two highest concentrations represent regions of the quercetin aggregates, in which the concentration of this molecule is unusually high. We study the behavior of this molecule, its aggregates, and the modifications in the surrounding water. In the first three successive layers of quercetin hydration, the density of water and the hydrogen bonds formations between water molecules are smaller than that of bulk. Quercetin has a hydrophilic surface region that preferentially establishes donor hydrogen bonds with water molecules with relative frequencies from 0.12 to 0.46 at infinite dilution. Also, it has two hydrophobic regions above and below the planes of its rings, whose first hydration layers are further out from quercetin (≈0.3 Å) and their water molecules do not establish hydrogen bonds with it. Water density around the hydrophobic regions is smaller than that of the hydrophilic. Quercetin molecules aggregate inπ-stacking configurations, with a distance of ≈0.37 nm between the planes of their rings, and form bonds between their hydroxyl groups. The formation of quercetin aggregates decreases the hydrogen bonds between quercetin and the surrounding water and produces a subdiffusive behavior in water molecules. Quercetin has a subdiffusive behavior even at infinite dilution, which increases with the number of molecules within the aggregates and the time they remain within them.
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Affiliation(s)
- M G Campo
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Uruguay 151, (6300) Santa Rosa, Argentina
| | - G M Corral
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Uruguay 151, (6300) Santa Rosa, Argentina
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10
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Systematic analysis of the molecular mechanisms mediated by coffee in Parkinson’s disease based on network pharmacology approach. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Anti-Oxidative, Anti-Inflammatory and Anti-Apoptotic Effects of Flavonols: Targeting Nrf2, NF-κB and p53 Pathways in Neurodegeneration. Antioxidants (Basel) 2021; 10:antiox10101628. [PMID: 34679762 PMCID: PMC8533072 DOI: 10.3390/antiox10101628] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/07/2021] [Accepted: 10/12/2021] [Indexed: 12/15/2022] Open
Abstract
Neurodegenerative diseases are one of the leading causes of disability and death worldwide. Intracellular transduction pathways that end in the activation of specific transcription factors are highly implicated in the onset and progression of pathological changes related to neurodegeneration, of which those related to oxidative stress (OS) and neuroinflammation are particularly important. Here, we provide a brief overview of the key concepts related to OS- and neuroinflammation-mediated neuropathological changes in neurodegeneration, together with the role of transcription factors nuclear factor erythroid 2-related factor 2 (Nrf2) and nuclear factor-κB (NF-κB). This review is focused on the transcription factor p53 that coordinates the cellular response to diverse genotoxic stimuli, determining neuronal death or survival. As current pharmacological options in the treatment of neurodegenerative disease are only symptomatic, many research efforts are aimed at uncovering efficient disease-modifying agents. Natural polyphenolic compounds demonstrate powerful anti-oxidative, anti-inflammatory and anti-apoptotic effects, partially acting as modulators of signaling pathways. Herein, we review the current understanding of the therapeutic potential and limitations of flavonols in neuroprotection, with emphasis on their anti-oxidative, anti-inflammatory and anti-apoptotic effects along the Nrf2, NF-κB and p53 pathways. A better understanding of cellular and molecular mechanisms of their action may pave the way toward new treatments.
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Zhu L, Gong Y, Lju H, Sun G, Zhang Q, Qian Z. Mechanisms of melatonin binding and destabilizing the protofilament and filament of tau R3-R4 domains revealed by molecular dynamics simulation. Phys Chem Chem Phys 2021; 23:20615-20626. [PMID: 34514491 DOI: 10.1039/d1cp03142b] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The accumulation of β-amyloid (Aβ) and tau protein is considered to be an important pathological characteristic of Alzheimer's disease (AD). Failure of medicine targeting Aβ has drawn more attention to the influence of tau protein and its fibrillization on neurodegeneration. Increasing evidence shows that melatonin (Mel) can effectively inhibit the formation of tau fibrils and disassemble preformed tau fibrils. However, the underlying mechanism is poorly understood. In this work, we investigated the kinetics of melatonin binding and destabilizing the tetrameric protofilament and octameric filament of tau R3-R4 domains by performing microsecond all-atom molecular dynamics simulations. Our results show that Mel is able to disrupt the C-shaped structure of the tau protofilament and filament, and destabilizes the association between N- and C-termini. Mel predominantly binds to β1 and β6-β8 regions and favors contact with the elongation surface, which is dominantly driven by hydrogen bonding interactions and facilitated by other interactions. The strong π-π stacking interaction of Mel with Y310 impedes the intramolecular CH-π interaction between I308 and Y310, and the cation-π interaction of Mel with R379 interferes with the formation of the D348-R379 salt bridge. Moreover, Mel occupies the protofilament surface in the tetrameric protofilament and prevents the formation of intermolecular hydrogen bonds between residues K331 and Q336 in the octameric filament. Our work provides molecular insights into Mel hindering tau fibrillization or destabilizing the protofilament and filament, and the revealed inhibitory mechanisms provide useful clues for the design of efficient anti-amyloid agents.
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Affiliation(s)
- Lili Zhu
- Key Laboratory of Exercise and Health Sciences (Ministry of Education) and School of Kinesiology, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, China.
| | - Yehong Gong
- College of Physical Education and Training, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, China
| | - Hao Lju
- Key Laboratory of Exercise and Health Sciences (Ministry of Education) and School of Kinesiology, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, China.
| | - Gongwu Sun
- Key Laboratory of Exercise and Health Sciences (Ministry of Education) and School of Kinesiology, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, China.
| | - Qingwen Zhang
- College of Physical Education and Training, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, China
| | - Zhenyu Qian
- Key Laboratory of Exercise and Health Sciences (Ministry of Education) and School of Kinesiology, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, China.
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Annunziata G, Sureda A, Orhan IE, Battino M, Arnone A, Jiménez-García M, Capó X, Cabot J, Sanadgol N, Giampieri F, Tenore GC, Kashani HRK, Silva AS, Habtemariam S, Nabavi SF, Nabavi SM. The neuroprotective effects of polyphenols, their role in innate immunity and the interplay with the microbiota. Neurosci Biobehav Rev 2021; 128:437-453. [PMID: 34245757 DOI: 10.1016/j.neubiorev.2021.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 05/21/2021] [Accepted: 07/05/2021] [Indexed: 12/19/2022]
Abstract
Neurodegenerative disorders, particularly in the elderly population, represent one of the most pressing social and health-care problems in the world. Besides the well-established role of both oxidative stress and inflammation, alterations of the immune response have been found to be closely linked to the development of neurodegenerative diseases. Interestingly, various scientific evidence reported that an altered gut microbiota composition may contribute to the development of neuroinflammatory disorders. This leads to the proposal of the concept of the gut-brain-immune axis. In this scenario, polyphenols play a pivotal role due to their ability to exert neuroprotective, immunomodulatory and microbiota-remodeling activities. In the present review, we summarized the available literature to provide a scientific evidence regarding this neuroprotective and immunomodulatory effects and the interaction with gut microbiota of polyphenols and, the main signaling pathways involved that can explain their potential therapeutic application in neurodegenerative diseases.
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Affiliation(s)
- Giuseppe Annunziata
- NutraPharmaLabs, Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Naples, Italy.
| | - Antoni Sureda
- Research Group in Community Nutrition and Oxidative Stress and Health Research Institute of the Balearic Islands (IdISBa), University of Balearic Islands-IUNICS, E-07122, Palma de Mallorca, Spain; CIBEROBN (Physiopathology of Obesity and Nutrition), Istituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Ilkay Erdogan Orhan
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey.
| | - Maurizio Battino
- Nutrition and Food Science Group, Department of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo - Vigo Campus, Vigo, Spain; Dept of Clinical Sciences, Università Politecnica delle Marche, Ancona, Italy; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, 212013, China.
| | - Angela Arnone
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131, Naples, Italy.
| | - Manuel Jiménez-García
- Laboratory of Neurophysiology, Biology Department, University of Balearic Islands (UIB), Ctra. Valldemossa Km 7.5, E-07122, Palma de Mallorca, Spain.
| | - Xavier Capó
- Research Group in Community Nutrition and Oxidative Stress and Health Research Institute of the Balearic Islands (IdISBa), University of Balearic Islands-IUNICS, E-07122, Palma de Mallorca, Spain.
| | - Joan Cabot
- Biology Department, University of Balearic Islands (UIB), Ctra. Valldemossa Km 7.5, E-07122 Palma de Mallorca, Spain.
| | - Nima Sanadgol
- Department of Biology, Faculty of Sciences, University of Zabol, Zabol, Iran; Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brazil.
| | - Francesca Giampieri
- Department of Odontostomatologic and Specialized Clinical Sciences, Faculty of Medicine, Polytechnic University of Marche, Ancona, Italy; Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Gian Carlo Tenore
- NutraPharmaLabs, Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131, Naples, Italy.
| | | | - Ana Sanches Silva
- National Institute of Agrarian and Veterinary Research (INIAV), Rua dos Lágidos, Lugar da Madalena, Vairão, Vila do Conde, Oporto, 4485-655, Portugal; Center for Study in Animal Science (CECA), ICETA, University of Oporto, Oporto, Portugal.
| | - Solomon Habtemariam
- Pharmacognosy Research Laboratories & Herbal Analysis Services UK, University of Greenwich, Central Avenue, Charham-Maritime, Kent, ME4 4TB, UK.
| | - Seyed Fazel Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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14
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Recent studies of atomic-resolution structures of tau protein and structure-based inhibitors. QUANTITATIVE BIOLOGY 2021. [DOI: 10.15302/j-qb-021-0271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Tang Y, Zhang D, Zhang Y, Liu Y, Gong X, Chang Y, Ren B, Zheng J. Introduction and Fundamentals of Human Islet Amyloid Polypeptide Inhibitors. ACS APPLIED BIO MATERIALS 2020; 3:8286-8308. [DOI: 10.1021/acsabm.0c01234] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yijing Tang
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, Ohio 44325-3906, United States
| | - Dong Zhang
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, Ohio 44325-3906, United States
| | - Yanxian Zhang
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, Ohio 44325-3906, United States
| | - Yonglan Liu
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, Ohio 44325-3906, United States
| | - Xiong Gong
- Department of Polymer Engineering, The University of Akron, Akron, Ohio 44325-0301, United States
| | - Yung Chang
- Department of Chemical Engineering, R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan 320, Taiwan
| | - Baiping Ren
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, Ohio 44325-3906, United States
| | - Jie Zheng
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, Ohio 44325-3906, United States
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Henríquez G, Gomez A, Guerrero E, Narayan M. Potential Role of Natural Polyphenols against Protein Aggregation Toxicity: In Vitro, In Vivo, and Clinical Studies. ACS Chem Neurosci 2020; 11:2915-2934. [PMID: 32822152 DOI: 10.1021/acschemneuro.0c00381] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
One of the main features of neurodegenerative disorders such as Alzheimer's disease and Parkinson's disease is the amyloidogenic behavior of disease-specific proteins including amyloid β, tau, α-synuclein, and mutant Huntingtin which participate in the formation, accumulation, and deposition of toxic misfolded aggregates. Consequently, these proteins not only associated with the progress of their respective neurodegenerative pathologies but also qualify as disease-specific biomarkers. The aim of using natural polyphenols is to target amyloid-dependent proteopathies by decreasing free radical damage and inhibiting and dissolving amyloid fibrils. We explore the effectiveness of the polyphenols epigallocatechin-3-gallate, oleuropein aglycone, and quercetin on their ability to inhibit aggregation of amyloid β, tau, and α-synuclein and mitigate other pathological features for Alzheimer's disease and Parkinson's disease. The analysis was carried from in vitro and cell line studies to animal models and clinical trials. This Review describes the use of phytochemical compounds as prophylactic agents for Alzheimer's disease, Parkinson's disease, and other proteopathies.
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Affiliation(s)
- Gabriela Henríquez
- Department of Environmental Science and Engineering, the University of Texas at El Paso (UTEP), El Paso, Texas 79968, United States
| | - Alejandra Gomez
- Department of Chemistry and Biochemistry, the University of Texas at El Paso (UTEP), El Paso, Texas 79968, United States
| | - Erick Guerrero
- Department of Chemistry and Biochemistry, the University of Texas at El Paso (UTEP), El Paso, Texas 79968, United States
| | - Mahesh Narayan
- Department of Chemistry and Biochemistry, the University of Texas at El Paso (UTEP), El Paso, Texas 79968, United States
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17
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Zubčić K, Hof PR, Šimić G, Jazvinšćak Jembrek M. The Role of Copper in Tau-Related Pathology in Alzheimer's Disease. Front Mol Neurosci 2020; 13:572308. [PMID: 33071757 PMCID: PMC7533614 DOI: 10.3389/fnmol.2020.572308] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 08/19/2020] [Indexed: 12/12/2022] Open
Abstract
All tauopathies, including Alzheimer's disease (AD), are characterized by the intracellular accumulation of abnormal forms of tau protein in neurons and glial cells, which negatively affect microtubule stability. Under physiological conditions, tubulin-associated unit (Tau) protein is intrinsically disordered, almost without secondary structure, and is not prone to aggregation. In AD, it assembles, and forms paired helical filaments (PHFs) that further build-up neurofibrillary tangles (NFTs). Aggregates are composed of hyperphosphorylated tau protein that is more prone to aggregation. The pathology of AD is also linked to disturbed copper homeostasis, which promotes oxidative stress (OS). Copper imbalance is widely observed in AD patients. Deregulated copper ions may initiate and exacerbate tau hyperphosphorylation and formation of β-sheet-rich tau fibrils that ultimately contribute to synaptic failure, neuronal death, and cognitive decline observed in AD patients. The present review summarizes factors affecting the process of tau aggregation, conformational changes of small peptide sequences in the microtubule-binding domain required for these motifs to act as seeding sites in aggregation, and the role of copper in OS induction, tau hyperphosphorylation and tau assembly. A better understanding of the various factors that affect tau aggregation under OS conditions may reveal new targets and novel pharmacological approaches for the therapy of AD.
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Affiliation(s)
- Klara Zubčić
- Laboratory for Developmental Neuropathology, Department for Neuroscience, Croatian Institute for Brain Research, University of Zagreb Medical School, Zagreb, Croatia
| | - Patrick R Hof
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Goran Šimić
- Laboratory for Developmental Neuropathology, Department for Neuroscience, Croatian Institute for Brain Research, University of Zagreb Medical School, Zagreb, Croatia
| | - Maja Jazvinšćak Jembrek
- Laboratory for Protein Dynamics, Division of Molecular Medicine, Ruđer Bošković Institute, Zagreb, Croatia.,Department of Psychology, Catholic University of Croatia, Zagreb, Croatia
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18
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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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