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Riegelman E, Xue KS, Wang JS, Tang L. Gut-Brain Axis in Focus: Polyphenols, Microbiota, and Their Influence on α-Synuclein in Parkinson's Disease. Nutrients 2024; 16:2041. [PMID: 38999791 PMCID: PMC11243524 DOI: 10.3390/nu16132041] [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: 06/11/2024] [Revised: 06/20/2024] [Accepted: 06/25/2024] [Indexed: 07/14/2024] Open
Abstract
With the recognition of the importance of the gut-brain axis in Parkinson's disease (PD) etiology, there is increased interest in developing therapeutic strategies that target α-synuclein, the hallmark abhorrent protein of PD pathogenesis, which may originate in the gut. Research has demonstrated that inhibiting the aggregation, oligomerization, and fibrillation of α-synuclein are key strategies for disease modification. Polyphenols, which are rich in fruits and vegetables, are drawing attention for their potential role in this context. In this paper, we reviewed how polyphenols influence the composition and functional capabilities of the gut microbiota and how the resulting microbial metabolites of polyphenols may potentially enhance the modulation of α-synuclein aggregation. Understanding the interaction between polyphenols and gut microbiota and identifying which specific microbes may enhance the efficacy of polyphenols is crucial for developing therapeutic strategies and precision nutrition based on the microbiome.
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Affiliation(s)
| | | | | | - Lili Tang
- Department of Environmental Health Science, University of Georgia, Athens, GA 30602, USA; (E.R.); (K.S.X.); (J.-S.W.)
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2
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Zaidi N, Ahmad O, Khursheed M, Nabi F, Uversky VN, Khan RH. Furosemide Derails Human Lysozyme Fibrillation by Interacting with Aggregation Hot Spots: A Biophysical Comprehension. J Phys Chem B 2024; 128:4283-4300. [PMID: 38683125 DOI: 10.1021/acs.jpcb.3c02613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Kidney-associated human lysozyme amyloidosis leads to renal impairments;thus, patients are often prescribed furosemide. Based on this fact, the effect of furosemide on induced human lysozyme fibrillation, in vitro, is evaluated by spectroscopic, calorimetric, computational, and cellular-based assays/methods. Results show that furosemide increases the lag phase and decreases the apparent rate of aggregation of human lysozyme, thereby decelerating the nucleation phase and amyloid fibril formation, as confirmed by the decrease in the level of Thioflavin-T fluorescence. Fewer entities of hydrodynamic radii of ∼171 nm instead of amyloid fibrils (∼412 nm) are detected in human lysozyme in the presence of furosemide by dynamic light scattering. Moreover, furosemide decreases the extent of conversion of the α/β structure of human lysozyme into a predominant β-sheet. The isothermal titration calorimetry established that furosemide forms a complex with human lysozyme, which was also confirmed through fluorescence quenching and computational studies. Also, human lysozyme lytic activity is inhibited competitively by furosemide due to the involvement of amino acid residues of the active site in catalysis, as well as complex formation. Conclusively, furosemide interacts with Gln58, Ile59, Asn60, Ala108, and Trp109 of aggregation-prone regions 2 and 4 of human lysozyme, thereby masking its sites of aggregation and generating only lower-order entities that are less toxic to red blood cells than the fibrils. Thus, furosemide slows the progression of amyloid fibrillation in human lysozyme.
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Affiliation(s)
- Nida Zaidi
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Owais Ahmad
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Maryam Khursheed
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Faisal Nabi
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Vladimir N Uversky
- Department of Molecular Medicine and USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, Florida 33612, United States
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
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Li JF, Jiang ZQ, Cao S, Zhang MX, Wang LH, Liu J, Lu YH, Wang HY, Hong XJ, Wang ZG, Liu JP. Curcumin Inhibits α-Synuclein Aggregation by Acting on Liquid-Liquid Phase Transition. Foods 2024; 13:1287. [PMID: 38731658 PMCID: PMC11083653 DOI: 10.3390/foods13091287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/13/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Parkinson's disease (PD), the second most common neurodegenerative disorder, is linked to α-synuclein (α-Syn) aggregation. Despite no specific drug being available for its treatment, curcumin, from the spice turmeric, shows promise. However, its application in PD is limited by a lack of understanding of its anti-amyloidogenic mechanisms. In this study, we first reconstructed the liquid-liquid phase separation (LLPS) of α-Syn in vitro under different conditions, which may be an initial step in entraining the pathogenic aggregation. Subsequently, we evaluated the effects of curcumin on the formation of droplets, oligomers, and aggregated fibers during the LLPS of α-synuclein, as well as its impact on the toxicity of aggregated α-synuclein to cultured cells. Importantly, we found that curcumin can inhibit amyloid formation by inhibiting the occurrence of LLPS and the subsequent formation of oligomers of α-Syn in the early stages of aggregation. Finally, the molecular dynamic simulations of interactions between α-Syn decamer fibrils and curcumin showed that van der Waal's interactions make the largest contribution to the anti-aggregation effect of curcumin. These results may help to clarify the mechanism by which curcumin inhibits the formation of α-Syn aggregates during the development of PD.
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Affiliation(s)
- Jian-Feng Li
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Zi-Qun Jiang
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Sen Cao
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Meng-Xin Zhang
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Li-Hui Wang
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Jun Liu
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Yan-Hua Lu
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Hong-Yan Wang
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Xiao-Jing Hong
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Zhi-Guo Wang
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
| | - Jun-Ping Liu
- Institute of Ageing Research, School of Basic Medical Sciences, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China; (J.-F.L.); (Z.-Q.J.); (S.C.); (M.-X.Z.); (L.-H.W.); (J.L.); (Y.-H.L.); (H.-Y.W.); (X.-J.H.)
- Department of Immunology and Pathology, Faculty of Medicine, Central Clinical School, Monash University, Commercial Road, Prahran, VIC 3018, Australia
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4
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Kispotta S, Das D, Prusty SK. A recent update on drugs and alternative approaches for parkinsonism. Neuropeptides 2024; 104:102415. [PMID: 38402775 DOI: 10.1016/j.npep.2024.102415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 02/27/2024]
Abstract
Parkinson's disease, often known as PD, is a more common age-related neurological disorder that affects a huge number of older adults worldwide. Parkinson's disease is predominantly a movement-related pathosis and is distinguished by the deposition of intra-neuronal aggregates, as the alpha-synuclein gene is expressed as Lewy bodies (LB) causing dopaminergic neurons to die. Stress in early life may contribute to the development of depression, and depression in patients may result in the development of Parkinson's disease as they mature. Depression is a non-motor condition that leads to motor symptoms, such as Parkinson's disease. PD Patients are currently utilizing a variety of other therapies like utilizing nutritional supplements, herbal remedies, vitamins, and massage. When a patient's functional ability is impaired, drug treatment is usually initiated according to the individual's condition and the severity of signs and symptoms. The current marketed anti-Parkinson drugs, has low brain distribution and failing to repair dopaminergic neurons or delaying the progression of the disease these negative effects were unavoidable. To overcome these disadvantages, this review considers the inclusion of drugs used in Parkinson's disease, focusing on strategies to reuse existing compounds to speed up drug development, their capacity to traverse the BBB, and drug dispersion in the brain. We look at cellular therapies and repurposed drugs. We also investigate the mechanisms, effectiveness, as well as safety of several new medications that are being repositioned for Parkinson's disease pharmacotherapy. In this study, we focus on global trends in Parkinson's disease research. We hope to raise awareness about the present state of major factors for disability worldwide, including yearly prevalence's from international and national statistics. The pathophysiology of Parkinsonism and also analyze existing therapies for Parkinson's disease, moreover new and innovative drug therapies, and to assess the prospects for disease modification.
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Affiliation(s)
- Sneha Kispotta
- School of Pharmaceutical Sciences, Siksha O Anusandhan Deemed to be University, Bhubaneswar, India.
| | - Debajyoti Das
- School of Pharmaceutical Sciences, Siksha O Anusandhan Deemed to be University, Bhubaneswar, India.
| | - Shakti Ketan Prusty
- School of Pharmaceutical Sciences, Siksha O Anusandhan Deemed to be University, Bhubaneswar, India.
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5
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Laha B, Tiwari AR, Gravel E, Doris E, Namboothiri INN. The Michael donor-acceptor reactivity of curcumins in the synthesis of diverse multi-functional scaffolds. Org Biomol Chem 2024; 22:1346-1359. [PMID: 38268394 DOI: 10.1039/d3ob01734f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Curcumin is a key constituent of turmeric with a variety of biological activities. From a chemical point of view, curcumin contains different functional groups that can undergo multiple transformations such as Michael addition, cycloaddition, click reaction, polymerisation, etc. Among these, Michael-type reactions under benign conditions constitute a captivating domain of curcumin's reactivity. To the best of our knowledge, no review focusing on the Michael donor-acceptor reactivity of curcumins has been published to date. Herein, we have compiled the chemistry of curcumins with respect to their chemical synthesis, biosynthesis, and involvement in chemical transformations, especially in Michael additions with advances in mechanistic aspects and understanding.
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Affiliation(s)
- Banamali Laha
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076, India.
| | - Abhishek R Tiwari
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076, India.
| | - Edmond Gravel
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
| | - Eric Doris
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
| | - Irishi N N Namboothiri
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076, India.
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
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Laha B, Suresh A, Namboothiri INN. Regio- and stereoselective synthesis of functionalized tetrahydro-benzochromenes and hexahydrochromenochromenones via [4 + 2] annulation of curcumins with nitrochromenes. Org Biomol Chem 2023; 21:1872-1877. [PMID: 36779639 DOI: 10.1039/d2ob02211g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
A base-mediated regio- and stereoselective synthesis of functionalized tetrahydro-6H-benzo[c]chromenes and hexahydro-1H,6H-chromeno[6,5-c]chromenone is disclosed here. It involves a [4 + 2] annulation via cascade double and triple Michael reactions between curcumins and nitrochromenes in the presence of Cs2CO3 and DBU, respectively, at room temperature, and it offers a diverse array of products as single regio- and diastereomers in excellent yields under mild conditions. Preliminary studies towards developing an enantioselective version under organocatalytic conditions met with only limited success but revealed a potentially interesting kinetic resolution pathway.
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Affiliation(s)
- Banamali Laha
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076, India.
| | - Alati Suresh
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076, India.
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7
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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: 2] [Impact Index Per Article: 2.0] [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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8
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Liquid-liquid Phase Separation of α-Synuclein: A New Mechanistic Insight for α-Synuclein Aggregation Associated with Parkinson's Disease Pathogenesis. J Mol Biol 2023; 435:167713. [PMID: 35787838 DOI: 10.1016/j.jmb.2022.167713] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 02/04/2023]
Abstract
Aberrant aggregation of the misfolded presynaptic protein, α-Synuclein (α-Syn) into Lewy body (LB) and Lewy neuritis (LN) is a major pathological hallmark of Parkinson's disease (PD) and other synucleinopathies. Numerous studies have suggested that prefibrillar and fibrillar species of the misfolded α-Syn aggregates are responsible for cell death in PD pathogenesis. However, the precise molecular events during α-Syn aggregation, especially in the early stages, remain elusive. Emerging evidence has demonstrated that liquid-liquid phase separation (LLPS) of α-Syn occurs in the nucleation step of α-Syn aggregation, which offers an alternate non-canonical aggregation pathway in the crowded microenvironment. The liquid-like α-Syn droplets gradually undergo an irreversible liquid-to-solid phase transition into amyloid-like hydrogel entrapping oligomers and fibrils. This new mechanism of α-Syn LLPS and gel formation might represent the molecular basis of cellular toxicity associated with PD. This review aims to demonstrate the recent development of α-Syn LLPS, the underlying mechanism along with the microscopic events of aberrant phase transition. This review further discusses how several intrinsic and extrinsic factors regulate the thermodynamics and kinetics of α-Syn LLPS and co-LLPS with other proteins, which might explain the pathophysiology of α-Syn in various neurodegenerative diseases.
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Dawn A, Goswami V, Sapra S, Deep S. Nano-Formulation of Antioxidants as Effective Inhibitors of γD-Crystallin Aggregation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1330-1344. [PMID: 36627843 DOI: 10.1021/acs.langmuir.2c03263] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The aggregation of crystallin proteins is related to cataracts and age-related macular degeneration. Apart from surgical replacement of the cataract lens, no other alternative treatment is available till date for this ailment. In the current work, we carried out an in-depth investigation of the effect of polyphenol-loaded nano-formulations on the aggregation of γD-crystallin. At first, the protein was allowed to form amorphous aggregates under denaturing conditions. Several polyphenols were then tried to inhibit the aggregation of the protein. Among the polyphenols tested, resveratrol and quercetin were found to be the most effective. Since polyphenols are prone to degradation, they were encapsulated in chitosan nanoparticles in order to provide ambient conditions for them to function effectively. The loading efficiency and polyphenol release kinetics were subsequently tested. Finally, the efficacy of resveratrol/quercetin-loaded chitosan nano-particles as inhibitors of γD-crystallin aggregation was confirmed in a series of experiments demonstrating the potency of the system in the prospective therapeutic intervention of eye ailments concerning self-assembly of γD-crystallin proteins.
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Affiliation(s)
- Amrita Dawn
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, Delhi, India
| | - Vishakha Goswami
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, Delhi, India
| | - Sameer Sapra
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, Delhi, India
| | - Shashank Deep
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, Delhi, India
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High Yield Synthesis of Curcumin and Symmetric Curcuminoids: A "Click" and "Unclick" Chemistry Approach. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010289. [PMID: 36615495 PMCID: PMC9822029 DOI: 10.3390/molecules28010289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023]
Abstract
The worldwide known and employed spice of Asian origin, turmeric, receives significant attention due to its numerous purported medicinal properties. Herein, we report an optimized synthesis of curcumin and symmetric curcuminoids of aromatic (bisdemethoxycurcumin) and heterocyclic type, with yields going from good to excellent using the cyclic difluoro-boronate derivative of acetylacetone prepared by reaction of 2,4-pentanedione with boron trifluoride in THF (ca. 95%). The subsequent cleavage of the BF2 group is of significant importance for achieving a high overall yield in this two-step procedure. Such cleavage occurs by treatment with hydrated alumina (Al2O3) or silica (SiO2) oxides, thus allowing the target heptanoids obtained in high yields as an amorphous powder to be filtered off directly from the reaction media. Furthermore, crystallization instead of chromatographic procedures provides a straightforward purification step. The ease and efficiency with which the present methodology can be applied to synthesizing the title compounds earns the terms "click" and "unclick" applied to describe particularly straightforward, efficient reactions. Furthermore, the methodology offers a simple, versatile, fast, and economical synthetic alternative for the obtention of curcumin (85% yield), bis-demethoxycurcumin (78% yield), and the symmetrical heterocyclic curcuminoids (80-92% yield), in pure form and excellent yields.
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Phytochemical Composition, Antimicrobial, Anticancer Properties, and Antioxidant Potential of Green Husk from Several Walnut Varieties ( Juglans regia L.). Antioxidants (Basel) 2022; 12:antiox12010052. [PMID: 36670914 PMCID: PMC9854983 DOI: 10.3390/antiox12010052] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/15/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Husk powder was prepared from seven varieties of walnut fruit and their hulling rate, chemical compounds, and total phenolic contents were evaluated. The apolar and polar extracts were prepared, respectively, from hexane and a hydroethanolic solvent, while qualitative and semi-quantitative analyses were performed by GC/MS and UHPLC-PDA-HRMS/MS. The antioxidant, antimicrobial, and antitumor properties of green walnut husk were also evaluated. The total content of phenolic compounds varied between the varieties, ranging from 35.2 ± 0.9 to 58.0 ± 0.0 mg/g gallic acid equivalent of dry husk weight (dw). The apolar extract was found to contain alkanes, tocopherols, sterols, and fatty acids, including oleic, linoleic, and linolenic, while the polar extract showed the presence of phenolics including salicylate glucuronide, taxifolin, catechin, and quercetin isomers. The antioxidant power obtained by the PAOT (total antioxidant power) method for the husk powders ranged from 256.5 ± 5.9 to 746.8 ± 6.9 score/g dw, and seemed consistent with the total phenolic content and the results obtained by the classic antioxidant test with DPPH. The walnut husk also showed an antibacterial effect against Gram-negative and Gram-positive bacteria and cytotoxic potential against HepG2. Among the selected varieties, the green Saman had the highest antioxidant properties, while the Saman with a brown color had the lowest.
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12
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Bopardikar M, Koti Ainavarapu SR, Hosur RV. Pyrogallol, Corilagin and Chebulagic acid target the "fuzzy coat" of alpha-synuclein to inhibit the fibrillization of the protein. RSC Adv 2022; 12:35770-35777. [PMID: 36545068 PMCID: PMC9749937 DOI: 10.1039/d2ra04358k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/13/2022] [Indexed: 12/15/2022] Open
Abstract
The accumulation of the intrinsically disordered protein alpha-synuclein (αSyn) in the form of insoluble fibrillar aggregates in the central nervous system is linked to a variety of neurodegenerative disorders such as Parkinson's disease, Lewy body dementia, and multiple system atrophy. Here we show that Pyrogallol, Corilagin and Chebulagic acid, compounds containing a different number of catechol rings, are independently capable of delaying and reducing the extent of αSyn fibrillization. The efficiency of inhibition was found to correlate with the number of catechol rings. Further, our NMR studies reveal that these compounds interact with the N-terminal region of αSyn which is unstructured even in the fibrillar form of the protein and is known as the "fuzzy coat" of fibrils. Thus, Corilagin and Chebulagic acid target the fuzzy coat of αSyn and not the amyloid core which is a common target for the inhibition of protein fibrillization. Our results indicate that the N-terminus also plays a key role in the fibrillization of αSyn.
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Affiliation(s)
- Mandar Bopardikar
- Department of Chemical Sciences, Tata Institute of Fundamental ResearchHomi Bhabha Road, ColabaMumbai 400005India
| | - Sri Rama Koti Ainavarapu
- Department of Chemical Sciences, Tata Institute of Fundamental ResearchHomi Bhabha Road, ColabaMumbai 400005India
| | - Ramakrishna V. Hosur
- UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina CampusSantacruzMumbai 400098India
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13
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Velander P, Wu L, Hildreth SB, Vogelaar NJ, Mukhopadhyay B, Helm RF, Zhang S, Xu B. Catechol-containing compounds are a broad class of protein aggregation inhibitors: Redox state is a key determinant of the inhibitory activities. Pharmacol Res 2022; 184:106409. [PMID: 35995346 PMCID: PMC10074477 DOI: 10.1016/j.phrs.2022.106409] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/20/2022] [Accepted: 08/17/2022] [Indexed: 12/30/2022]
Abstract
A range of neurodegenerative and related aging diseases, such as Alzheimer's disease and type 2 diabetes, are linked to toxic protein aggregation. Yet the mechanisms of protein aggregation inhibition by small molecule inhibitors remain poorly understood, in part because most protein targets of aggregation assembly are partially unfolded or intrinsically disordered, which hinders detailed structural characterization of protein-inhibitor complexes and structural-based inhibitor design. Herein we employed a parallel small molecule library-screening approach to identify inhibitors against three prototype amyloidogenic proteins in neurodegeneration and related proteinopathies: amylin, Aβ and tau. One remarkable class of inhibitors identified from these screens against different amyloidogenic proteins was catechol-containing compounds and redox-related quinones/anthraquinones. Secondary assays validated most of the identified inhibitors. In vivo efficacy evaluation of a selected catechol-containing compound, rosmarinic acid, demonstrated its strong mitigating effects of amylin amyloid deposition and related diabetic pathology in transgenic HIP rats. Further systematic investigation of selected class of inhibitors under aerobic and anaerobic conditions revealed that the redox state of the broad class of catechol-containing compounds is a key determinant of the amyloid inhibitor activities. The molecular insights we gained not only explain why a large number of catechol-containing polyphenolic natural compounds, often enriched in healthy diet, have anti-neurodegeneration and anti-aging activities, but also could guide the rational design of therapeutic or nutraceutical strategies to target a broad range of neurodegenerative and related aging diseases.
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Affiliation(s)
- Paul Velander
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA
| | - Ling Wu
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; BRITE Research Institute and Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC 27707, USA; Affiliated Faculty, Duke/UNC Alzheimer's Disease Research Center, Durham, NC 27710, USA
| | - Sherry B Hildreth
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA
| | - Nancy J Vogelaar
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; Center for Drug Discovery, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA
| | - Biswarup Mukhopadhyay
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA
| | - Richard F Helm
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA
| | - Shijun Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Bin Xu
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; Center for Drug Discovery, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; School of Neuroscience, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; BRITE Research Institute and Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC 27707, USA; Affiliated Faculty, Duke/UNC Alzheimer's Disease Research Center, Durham, NC 27710, USA.
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14
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Akbarian M, Bahmani M, Chen SH, Yousefi R, Mohammadi-Samani S, Tayebi L, Panahi F, Farjadian F. Mechanisms behind the Fibrillation and Toxicity of Insulin Fibrils on Neuron Cells by Engineered Curcumin Analogs. ACS Chem Neurosci 2022; 13:2613-2631. [PMID: 35969719 DOI: 10.1021/acschemneuro.2c00209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Among foods, the use of plant derivatives as promising drugs and/or excipients has been considered from various perspectives. In the present study, curcumin, which is one of the most important plant derivatives for biological uses, and four curcumin-based pyrido[2,3-d]pyrimidine analogs (C2-C5) were used for investigating the mechanism of insulin fibrillation and evaluating the cytotoxicity of insulin fibrils. The synthesized analogs differed in terms of hydrophobicity and electrostatic charge. The analogs with more hydrophobicity (C1 and C4) in both acidic and neutral environments were able to reduce the rate of insulin fibrillation and the degree of cross-linking in the produced fibrils. Additionally, the toxicity of these fibrils for neural cells (N2a cell line) was very low. However, they did not show any significant effects on the toxicity of non-neural cells (HEK293 cell line), indicating the effect of the biochemical surface diversity on determining the vulnerability to fibrils and even the mechanism of action of additives on cell line survival. Although negatively charged analogs were able to reduce insulin fibrillation in the acidic environment, they indicated an opposite effect in the neutral environment. The resultant fibrils in the acidic medium appeared with a well-distinguished filament, but they were very close at neutral pH levels. Moreover, such fibrils indicated very poor toxicity against the N2a cell line and had no significant effects on HEK293 cells. Considering the docking studies, by creatively using the size exclusion chromatography, it was suggested that analogs C2 and C3 were capable of binding to the C-terminal end of the insulin B chain (low affinity) and HisB10 (high affinity). Hence, it was suggested that different compounds could play different protecting and/or destroying roles in cell toxicity by blocking some ligands at the surface of neuron cells.
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Affiliation(s)
- Mohsen Akbarian
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz7146864685, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz7146864685, Iran.,Department of Chemistry, National Cheng Kung University, Tainan701, Taiwan
| | - Marzieh Bahmani
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz7146864685, Iran.,Department of Science, Medicine and Health, School of Chemistry and Molecular Bioscience, University of Wollongong, NSW, Wollongong2522, Australia
| | - Shu-Hui Chen
- Department of Chemistry, National Cheng Kung University, Tainan701, Taiwan
| | - Reza Yousefi
- Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran1417466191, Iran.,Protein Chemistry Laboratory, Department of Biology, College of Sciences, Shiraz University, Shiraz7193371, Iran
| | - Soliman Mohammadi-Samani
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz7146864685, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz7146864685, Iran
| | - Lobat Tayebi
- School of Dentistry, Marquette University, Milwaukee, Wisconsin53233-2186, United States
| | - Farhad Panahi
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104 Freiburg im Breisgau, Germany
| | - Fatemeh Farjadian
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz7146864685, Iran
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15
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Xu B, Chen J, Liu Y. Curcumin Interacts with α-Synuclein Condensates To Inhibit Amyloid Aggregation under Phase Separation. ACS OMEGA 2022; 7:30281-30290. [PMID: 36061735 PMCID: PMC9434619 DOI: 10.1021/acsomega.2c03534] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/03/2022] [Indexed: 05/27/2023]
Abstract
The amyloid aggregation of α-synuclein (α-Syn) is highly associated with Parkinson's disease (PD). Discovering α-Syn amyloid inhibitors is one of the strategies for PD therapies. Recent studies suggested that α-Syn undergoes phase separation to accelerate amyloid aggregation. Molecules modulating α-Syn phase separation or transition have the potential to regulate amyloid aggregation. Here, we discovered that curcumin, a small natural molecule, interacts with α-Syn during phase separation. Our study showed that curcumin neither affects the formation of α-Syn condensates nor influences the initial morphology of α-Syn condensates. However, curcumin decreases the fluidity of α-Syn inside the condensates and efficiently inhibits α-Syn from turning into an amyloid. It also inhibits the amyloid aggregations of PD disease-related α-Syn E46K and H50Q mutants under phase separation. Furthermore, curcumin can destabilize preformed α-Syn amyloid aggregates in the condensates. Together, our findings demonstrate that curcumin regulates α-Syn amyloid formation during protein phase separation and reveal that α-Syn amyloid aggregation under phase separation can be modulated by small molecules.
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16
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Gadhe L, Sakunthala A, Mukherjee S, Gahlot N, Bera R, Sawner AS, Kadu P, Maji SK. Intermediates of α-synuclein aggregation: Implications in Parkinson's disease pathogenesis. Biophys Chem 2021; 281:106736. [PMID: 34923391 DOI: 10.1016/j.bpc.2021.106736] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/27/2021] [Accepted: 11/27/2021] [Indexed: 12/11/2022]
Abstract
Cytoplasmic deposition of aberrantly misfolded α-synuclein (α-Syn) is a common feature of synucleinopathies, including Parkinson's disease (PD). However, the precise pathogenic mechanism of α-Syn in synucleinopathies remains elusive. Emerging evidence has suggested that α-Syn may contribute to PD pathogenesis in several ways; wherein the contribution of fibrillar species, for exerting toxicity and disease transmission, cannot be neglected. Further, the oligomeric species could be the most plausible neurotoxic species causing neuronal cell death. However, understanding the structural and molecular insights of these oligomers are very challenging due to the heterogeneity and transient nature of the species. In this review, we discuss the recent advancements in understanding the formation and role of α-Syn oligomers in PD pathogenesis. We also summarize the different types of α-Syn oligomeric species and potential mechanisms to exert neurotoxicity. Finally, we address the possible ways to target α-Syn as a promising approach against PD and the possible future directions.
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Affiliation(s)
- Laxmikant Gadhe
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Arunima Sakunthala
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Semanti Mukherjee
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Nitisha Gahlot
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Riya Bera
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Ajay Singh Sawner
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Pradeep Kadu
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Samir K Maji
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India.
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17
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Naoi M, Maruyama W, Shamoto-Nagai M. Disease-modifying treatment of Parkinson's disease by phytochemicals: targeting multiple pathogenic factors. J Neural Transm (Vienna) 2021; 129:737-753. [PMID: 34654977 DOI: 10.1007/s00702-021-02427-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 09/28/2021] [Indexed: 12/14/2022]
Abstract
Parkinson's disease is characterized by typical motor symptoms, loss of dopamine neurons in the substantia nigra, and accumulation of Lewy body composed of mutated α-synuclein. However, now it is considered as a generalized disease with multiple pathological features. Present available treatments can ameliorate symptoms at least for a while, but only a few therapies could delay progressive neurodegeneration of dopamine neurons. Lewy body accumulates in peripheral tissues many years before motor dysfunction becomes manifest, suggesting that disease-modifying therapy should start earlier during the premotor stage. Long-termed regulation of lifestyle, diet and supplement of nutraceuticals may be possible ways for the disease-modification. Diet can reduce the incidence of Parkinson's disease and phytochemicals, major bioactive ingredients of herbs and plant food, modulate multiple pathogenic factors and exert neuroprotective effects in preclinical studies. This review presents mechanisms underlying neuroprotection of phytochemicals against neuronal cell death and α-synuclein toxicity in Parkinson's disease. Phytochemicals are antioxidants, maintain mitochondrial function and homeostasis, prevent intrinsic apoptosis and neuroinflammation, activate cellular signal pathways to induce anti-apoptotic and pro-survival genes, such as Bcl-2 protein family and neurotrophic factors, and promote cleavage of damaged mitochondria and α-synuclein aggregates. Phytochemicals prevent α-synuclein oligomerization and aggregation, and dissolve preformed α-synuclein aggregates. Novel neuroprotective agents are expected to develop based on the scaffold of phytochemicals permeable across the blood-brain-barrier, to increase the bioavailability, ameliorate brain dysfunction and prevent neurodegeneration.
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Affiliation(s)
- Makoto Naoi
- Department of Health and Nutrition, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho, Nisshin, Aichi, 320-0195, Japan.
| | - Wakako Maruyama
- Department of Health and Nutrition, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho, Nisshin, Aichi, 320-0195, Japan
| | - Masayo Shamoto-Nagai
- Department of Health and Nutrition, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho, Nisshin, Aichi, 320-0195, Japan
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18
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Muniz IPR, Galantini MPL, Ribeiro IS, Gonçalves CV, Dos Santos DP, Moura TC, Silva ES, Silva NR, Cipriano BP, Correia TML, de Jesus Soares T, de Freitas LM, Costa DJ, da Silva RAA. Antimicrobial photodynamic therapy (aPDT) with curcumin controls intradermal infection by Staphylococcus aureus in mice with type 1 diabetes mellitus: a pilot study. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 224:112325. [PMID: 34598018 DOI: 10.1016/j.jphotobiol.2021.112325] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 10/20/2022]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is one of the main pathogens that cause infections in diabetic individuals. In this paper, we report the outcomes of our investigation on the intradermal application of antimicrobial photodynamic therapy (PDT) with curcumin in an infection induced by MRSA ATCC 43300 strain in the ear of mice with Type 1 Diabetes Mellitus (T1DM). A solution containing 100 μg of curcumin was photoactivated ex vivo with a LED light (450 nm) delivering a fluency of 13.5 J/cm3. This solution was administered in the ear intradermally, at the same inoculum site as the MRSA ATCC 43300 strain (PDT Group). This study also included the use of two control groups (both infected): One was treated with saline and the other was treated with non-photoactivated curcumin. The animals were euthanized 24 h after these treatments and samples of draining lymph node and treated ear were collected for examination. The PDT group showed lower bacterial load in the draining lymph node when compared to the saline and curcumin groups (p-value <0.05) 24 h after treatment. In addition to bacterial load, the PDT group presented a higher concentration of nitrates and nitrites in the draining lymph node when compared to the saline and curcumin groups (p-value <0.001). Examining the infectious site, despite apparently having similar inflammatory cell recruitment compared with the control groups, the PDT group showed a profile with less intense activity in the myeloperoxidase expression when compared to the saline group (p-value <0.001). Additionally, the detected concentration of cytokines such as IL-1β, IL-12, and IL-10 was significantly lower in the PDT group when compared to the saline group (p-value <0.01; p-value <0.05; p-value <0.05, respectively), thus presenting a less intense inflammatory response during infection resolution. Our pilot study showed for the first time the therapeutic potential of PDT using curcumin when administered intradermally in the treatment of infections caused by S. aureus in mice with T1DM.
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Affiliation(s)
- Igor Pereira Ribeiro Muniz
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Maria Poliana Leite Galantini
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Israel Souza Ribeiro
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil; Universidade Federal do Sul da Bahia, Campus Paulo Freire, 250 Praça Joana Angélica, Bairro São José, 45.988-058, Teixeira de Freitas, Bahia, Brazil
| | - Caroline Vieira Gonçalves
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Denisar Palmito Dos Santos
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Tatyana Chagas Moura
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Emely Soares Silva
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Nathalia Rosa Silva
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Barbara Porto Cipriano
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Thiago Macêdo Lopes Correia
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Telma de Jesus Soares
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Leandro Martins de Freitas
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil
| | - Dirceu Joaquim Costa
- Universidade Estadual do Sudoeste da Bahia, Campus Vitória da Conquista, Av. Edmundo Silveira Flores, 27-43 - Lot, Alto da Boa Vista, CEP: 45029-066 Vitória da Conquista, Bahia, Brasil
| | - Robson Amaro Augusto da Silva
- Universidade Federal da Bahia, Campus Anísio Teixeira - Instituto Multidisciplinar em Saúde, Rua Rio de Contas, 58, Bairro Candeias, CEP: 45.029-094 Vitória da Conquista, Bahia, Brasil.
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19
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Majeed A, Marwick B, Yu H, Fadavi H, Tavakoli M. Ophthalmic Biomarkers for Alzheimer's Disease: A Review. Front Aging Neurosci 2021; 13:720167. [PMID: 34566623 PMCID: PMC8461312 DOI: 10.3389/fnagi.2021.720167] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 08/11/2021] [Indexed: 11/13/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease characterized by neuronal loss, extracellular amyloid-β (Aβ) plaques, and intracellular neurofibrillary tau tangles. A diagnosis is currently made from the presenting symptoms, and the only definitive diagnosis can be done post-mortem. Over recent years, significant advances have been made in using ocular biomarkers to diagnose various neurodegenerative diseases, including AD. As the eye is an extension of the central nervous system (CNS), reviewing changes in the eye's biology could lead to developing a series of non-invasive, differential diagnostic tests for AD that could be further applied to other diseases. Significant changes have been identified in the retinal nerve fiber layer (RNFL), cornea, ocular vasculature, and retina. In the present paper, we review current research and assess some ocular biomarkers' accuracy and reliability that could potentially be used for diagnostic purposes. Additionally, we review the various imaging techniques used in the measurement of these biomarkers.
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Affiliation(s)
- Ayesha Majeed
- Medical School, University of Exeter, Exeter, United Kingdom
| | - Ben Marwick
- Medical School, University of Exeter, Exeter, United Kingdom
| | - Haoqing Yu
- Medical School, University of Exeter, Exeter, United Kingdom
| | | | - Mitra Tavakoli
- Medical School, University of Exeter, Exeter, United Kingdom
- Exeter Centre of Excellence for Diabetes Research, University of Exeter, Exeter, United Kingdom
- National Institute for Health Research, Exeter Clinical Research Facility, Exeter, United Kingdom
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20
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Kayed R, Dettmer U, Lesné SE. Soluble endogenous oligomeric α-synuclein species in neurodegenerative diseases: Expression, spreading, and cross-talk. JOURNAL OF PARKINSON'S DISEASE 2021; 10:791-818. [PMID: 32508330 PMCID: PMC7458533 DOI: 10.3233/jpd-201965] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
There is growing recognition in the field of neurodegenerative diseases that mixed proteinopathies are occurring at greater frequency than originally thought. This is particularly true for three amyloid proteins defining most of these neurological disorders, amyloid-beta (Aβ), tau, and alpha-synuclein (αSyn). The co-existence and often co-localization of aggregated forms of these proteins has led to the emergence of concepts positing molecular interactions and cross-seeding between Aβ, tau, and αSyn aggregates. Amongst this trio, αSyn has received particular attention in this context during recent years due to its ability to modulate Aβ and tau aggregation in vivo, to interact at a molecular level with Aβ and tau in vivo and to cross-seed tau in mice. Here we provide a comprehensive, critical, and accessible review about the expression, role and nature of endogenous soluble αSyn oligomers because of recent developments in the understanding of αSyn multimerization, misfolding, aggregation, cross-talk, spreading and cross-seeding in neurodegenerative disorders, including Parkinson's disease, dementia with Lewy bodies, multiple system atrophy, Alzheimer's disease, and Huntington's disease. We will also discuss our current understanding about the relative toxicity of endogenous αSyn oligomers in vivo and in vitro, and introduce potential opportunities to counter their deleterious effects.
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Affiliation(s)
- Rakez Kayed
- Departments of Neurology & Neuroscience & Cell Biology & Anatomy, University of Texas Medical Branch Galveston, Galveston, TX, USA,George and Cynthia Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch Galveston, Galveston, TX, USA
| | - Ulf Dettmer
- Department of Neurology, Harvard Medical School, Boston, MA, USA,Ann Romney Center for Neurologic Diseases, Harvard Medical School, Boston, MA, USA
| | - Sylvain E. Lesné
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA,Institute of Translational Neuroscience, University of Minnesota, Minneapolis, MN, USA,Correspondence to: Sylvain E. Lesné, PhD, University of Minnesota, Wallin Medical Biosciences Building (Room 4-114), 2101 Sixth Street SE, CDC 2641, Minneapolis, MN 55414, USA. Tel.: +1 612 626 8341; E-mail: ; Website: https://lesnelab.org
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21
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Li HL, Wu L, Dong Z, Jiang Y, Jiang S, Xing H, Li Q, Liu G, Tian S, Wu Z, Bin Wu, Li Z, Zhao P, Zhang Y, Tang J, Xu J, Huang K, Liu X, Zhang W, Liao Q, Ren Y, Huang X, Li Q, Li C, Wang Y, Xavier-Ravi B, Li H, Liu Y, Wan T, Liu Q, Zou Y, Jian J, Xia Q, Liu Y. Haplotype-resolved genome of diploid ginger (Zingiber officinale) and its unique gingerol biosynthetic pathway. HORTICULTURE RESEARCH 2021; 8:189. [PMID: 34354044 PMCID: PMC8342499 DOI: 10.1038/s41438-021-00627-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/20/2021] [Accepted: 07/13/2021] [Indexed: 05/18/2023]
Abstract
Ginger (Zingiber officinale), the type species of Zingiberaceae, is one of the most widespread medicinal plants and spices. Here, we report a high-quality, chromosome-scale reference genome of ginger 'Zhugen', a traditionally cultivated ginger in Southwest China used as a fresh vegetable, assembled from PacBio long reads, Illumina short reads, and high-throughput chromosome conformation capture (Hi-C) reads. The ginger genome was phased into two haplotypes, haplotype 1 (1.53 Gb with a contig N50 of 4.68 M) and haplotype 0 (1.51 Gb with a contig N50 of 5.28 M). Homologous ginger chromosomes maintained excellent gene pair collinearity. In 17,226 pairs of allelic genes, 11.9% exhibited differential expression between alleles. Based on the results of ginger genome sequencing, transcriptome analysis, and metabolomic analysis, we proposed a backbone biosynthetic pathway of gingerol analogs, which consists of 12 enzymatic gene families, PAL, C4H, 4CL, CST, C3'H, C3OMT, CCOMT, CSE, PKS, AOR, DHN, and DHT. These analyses also identified the likely transcription factor networks that regulate the synthesis of gingerol analogs. Overall, this study serves as an excellent resource for further research on ginger biology and breeding, lays a foundation for a better understanding of ginger evolution, and presents an intact biosynthetic pathway for species-specific gingerol biosynthesis.
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Affiliation(s)
- Hong-Lei Li
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Lin Wu
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Zhaoming Dong
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Beibei, Chongqing, China
| | - Yusong Jiang
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Sanjie Jiang
- BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong, China
| | - Haitao Xing
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Qiang Li
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Guocheng Liu
- BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong, China
| | - Shuming Tian
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- College of Biology and Food Engineering, Chongqign Three Gorges University, Wanzhou, Chongqing, China
| | - Zhangyan Wu
- BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong, China
| | - Bin Wu
- BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong, China
| | - Zhexin Li
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Ping Zhao
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Beibei, Chongqing, China
| | - Yan Zhang
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Beibei, Chongqing, China
| | - Jianmin Tang
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Jiabao Xu
- BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong, China
| | - Ke Huang
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Xia Liu
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Wenlin Zhang
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Qinhong Liao
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Yun Ren
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China
| | - Xinzheng Huang
- Department of Entomology and MOAKey Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Haidian, Beijing, China
| | - Qingzhi Li
- Jinan Second Agricultural Science Research Institute, Jinan, Shandong, China
| | - Chengyong Li
- Jinan Second Agricultural Science Research Institute, Jinan, Shandong, China
| | - Yi Wang
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Beibei, Chongqing, China
| | | | - Honghai Li
- Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing, China
| | - Yang Liu
- BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong, China
- Fairy Lake Botanical Garden and Chinese Academy of Sciences, Shenzhen, Guangdong, China
| | - Tao Wan
- Fairy Lake Botanical Garden and Chinese Academy of Sciences, Shenzhen, Guangdong, China
| | - Qinhu Liu
- Ningyang Science and Technology Bureau, Taian, Shandong, China
| | - Yong Zou
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China.
- Engineering Research Center for Special Plant Seedlings of Chongqing, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China.
| | - Jianbo Jian
- BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong, China.
| | - Qingyou Xia
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Beibei, Chongqing, China.
| | - Yiqing Liu
- College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, China.
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China.
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22
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Chetty D, Abrahams S, van Coller R, Carr J, Kenyon C, Bardien S. Movement of prion-like α-synuclein along the gut-brain axis in Parkinson's disease: A potential target of curcumin treatment. Eur J Neurosci 2021; 54:4695-4711. [PMID: 34043864 DOI: 10.1111/ejn.15324] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 05/06/2021] [Accepted: 05/23/2021] [Indexed: 12/11/2022]
Abstract
A pathological hallmark of the neurodegenerative disorder, Parkinson's disease (PD), is aggregation of toxic forms of the presynaptic protein, α-synuclein in structures known as Lewy bodies. α-Synuclein pathology is found in both the brain and gastrointestinal tracts of affected individuals, possibly due to the movement of this protein along the vagus nerve that connects the brain to the gut. In this review, we discuss current insights into the spread of α-synuclein pathology along the gut-brain axis, which could be targeted for therapeutic interventions. The prion-like propagation of α-synuclein, and the clinical manifestations of gastrointestinal dysfunction in individuals living with PD, are discussed. There is currently insufficient evidence that surgical alteration of the vagus nerve, or removal of gut-associated lymphoid tissues, such as the appendix and tonsils, are protective against PD. Furthermore, we propose curcumin as a potential candidate to prevent the spread of α-synuclein pathology in the body by curcumin binding to α-synuclein's non-amyloid β-component (NAC) domain. Curcumin is an active component of the food spice turmeric and is known for its antioxidant, anti-inflammatory, and potentially neuroprotective properties. We hypothesize that once α-synuclein is bound to curcumin, both molecules are subsequently excreted from the body. Therefore, dietary supplementation with curcumin over one's lifetime has potential as a novel approach to complement existing PD treatment and/or prevention strategies. Future studies are required to validate this hypothesis, but if successful, this could represent a significant step towards improved nutrient-based therapeutic interventions and preventative strategies for this debilitating and currently incurable disorder.
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Affiliation(s)
- Devina Chetty
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Shameemah Abrahams
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Riaan van Coller
- Faculty of Health Sciences, School of Medicine, Department of Neurology, University of Pretoria, Pretoria, South Africa
| | - Jonathan Carr
- Division of Neurology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Colin Kenyon
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.,DST-NRF Centre of Excellence for Biomedical Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, South African Medical Research Council Centre for Tuberculosis Research, Stellenbosch University, Cape Town, South Africa.,South African Medical Research Council Centre for Tuberculosis Research, Stellenbosch University, Cape Town, South Africa
| | - Soraya Bardien
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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23
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Dietary Polyphenols in Metabolic and Neurodegenerative Diseases: Molecular Targets in Autophagy and Biological Effects. Antioxidants (Basel) 2021; 10:antiox10020142. [PMID: 33498216 PMCID: PMC7908992 DOI: 10.3390/antiox10020142] [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: 10/30/2020] [Revised: 01/16/2021] [Accepted: 01/17/2021] [Indexed: 12/16/2022] Open
Abstract
Polyphenols represent a group of secondary metabolites of plants which have been analyzed as potent regulators of multiple biological processes, including cell proliferation, apoptosis, and autophagy, among others. These natural compounds exhibit beneficial effects and protection against inflammation, oxidative stress, and related injuries including metabolic diseases, such as cardiovascular damage, obesity and diabetes, and neurodegeneration. This review aims to summarize the mechanisms of action of polyphenols in relation to the activation of autophagy, stimulation of mitochondrial function and antioxidant defenses, attenuation of oxidative stress, and reduction in cell apoptosis, which may be responsible of the health promoting properties of these compounds.
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24
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Muronetz VI, Barinova K, Kudryavtseva S, Medvedeva M, Melnikova A, Sevostyanova I, Semenyuk P, Stroylova Y, Sova M. Natural and Synthetic Derivatives of Hydroxycinnamic Acid Modulating the Pathological Transformation of Amyloidogenic Proteins. Molecules 2020; 25:E4647. [PMID: 33053854 PMCID: PMC7594092 DOI: 10.3390/molecules25204647] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023] Open
Abstract
This review presents the main properties of hydroxycinnamic acid (HCA) derivatives and their potential application as agents for the prevention and treatment of neurodegenerative diseases. It is partially focused on the successful use of these compounds as inhibitors of amyloidogenic transformation of proteins. Firstly, the prerequisites for the emergence of interest in HCA derivatives, including natural compounds, are described. A separate section is devoted to synthesis and properties of HCA derivatives. Then, the results of molecular modeling of HCA derivatives with prion protein as well as with α-synuclein fibrils are summarized, followed by detailed analysis of the experiments on the effect of natural and synthetic HCA derivatives, as well as structurally similar phenylacetic and benzoic acid derivatives, on the pathological transformation of prion protein and α-synuclein. The ability of HCA derivatives to prevent amyloid transformation of some amyloidogenic proteins, and their presence not only in food products but also as natural metabolites in human blood and tissues, makes them promising for the prevention and treatment of neurodegenerative diseases of amyloid nature.
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Affiliation(s)
- Vladimir I. Muronetz
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (K.B.); (A.M.); (I.S.); (P.S.); (Y.S.)
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119234 Moscow, Russia; (S.K.); (M.M.)
| | - Kseniya Barinova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (K.B.); (A.M.); (I.S.); (P.S.); (Y.S.)
| | - Sofia Kudryavtseva
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119234 Moscow, Russia; (S.K.); (M.M.)
| | - Maria Medvedeva
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119234 Moscow, Russia; (S.K.); (M.M.)
| | - Aleksandra Melnikova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (K.B.); (A.M.); (I.S.); (P.S.); (Y.S.)
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119234 Moscow, Russia; (S.K.); (M.M.)
| | - Irina Sevostyanova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (K.B.); (A.M.); (I.S.); (P.S.); (Y.S.)
| | - Pavel Semenyuk
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (K.B.); (A.M.); (I.S.); (P.S.); (Y.S.)
| | - Yulia Stroylova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (K.B.); (A.M.); (I.S.); (P.S.); (Y.S.)
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University Trubetskaya St. 8, Bldg. 2, 119991 Moscow, Russia
| | - Matej Sova
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia;
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25
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Pravin N, Kumar R, Tripathi S, Kumar P, Mohite GM, Navalkar A, Panigrahi R, Singh N, Gadhe LG, Manchanda S, Shimozawa M, Nilsson P, Johansson J, Kumar A, Maji SK, Shanmugam M. Benzimidazole-based fluorophores for the detection of amyloid fibrils with higher sensitivity than Thioflavin-T. J Neurochem 2020; 156:1003-1019. [PMID: 32750740 DOI: 10.1111/jnc.15138] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 07/14/2020] [Accepted: 07/28/2020] [Indexed: 12/16/2022]
Abstract
Protein aggregation into amyloid fibrils is a key feature of a multitude of neurodegenerative diseases such as Alzheimer's, Parkinson's, and Prion disease. To detect amyloid fibrils, fluorophores with high sensitivity and better efficiency coupled with the low toxicity are in high demand even to date. In this pursuit, we have unveiled two benzimidazole-based fluorescence sensors ([C15 H15 N3 ] (C1) and [C16 H16 N3 O2 ] (C2), which possess exceptional affinity toward different amyloid fibrils in its submicromolar concentration (8 × 10-9 M), whereas under a similar concentration, the gold standard Thioflavin-T (ThT) fails to bind with amyloid fibrils. These fluorescent markers bind to α-Syn amyloid fibrils as well as amyloid fibrils forming other proteins/peptides including Aβ42 amyloid fibrils. The 1 H-15 N heteronuclear quantum correlation spectroscopy nuclear magnetic resonance data collected on wild-type α-Syn monomer with and without the fluorophores (C1 and C2) reveal that there is weak or no interactions between C1 or C2 with residues in α-Syn monomer, which indirectly reflects the specific binding ability of C1 and C2 to the α-Syn amyloid fibrils. Detailed studies further suggest that C1 and C2 can detect/bind with the α-Syn amyloid fibril as low as 100 × 10-9 M. Extremely low or no cytotoxicity is observed for C1 and C2 and they do not interfere with α-Syn fibrillation kinetics, unlike ThT. Both C1/C2 not only shows selective binding with amyloid fibrils forming various proteins/peptides but also displays excellent affinity and selectivity toward α-Syn amyloid aggregates in SH-SY5Y cells and Aβ42 amyloid plaques in animal brain tissues. Overall, our data show that the developed dyes could be used for the detection of amyloid fibrils including α-Syn and Aβ42 amyloids with higher sensitivity as compared to currently used ThT.
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Affiliation(s)
- Narayanaperumal Pravin
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Rakesh Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India.,Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Shalini Tripathi
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Pardeep Kumar
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Ganesh M Mohite
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Ambuja Navalkar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Rajlaxmi Panigrahi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Namrata Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Laxmikant G Gadhe
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Shaffi Manchanda
- Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Makoto Shimozawa
- Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Per Nilsson
- Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Jan Johansson
- Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Ashutosh Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Samir K Maji
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Maheswaran Shanmugam
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
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26
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Ryan P, Xu M, Jahan K, Davey AK, Bharatam PV, Anoopkumar-Dukie S, Kassiou M, Mellick GD, Rudrawar S. Novel Furan-2-yl-1 H-pyrazoles Possess Inhibitory Activity against α-Synuclein Aggregation. ACS Chem Neurosci 2020; 11:2303-2315. [PMID: 32551538 DOI: 10.1021/acschemneuro.0c00252] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
A series of novel furan-2-yl-1H-pyrazoles and their chemical precursors were synthesized and evaluated for their effectiveness at disrupting α-synuclein (α-syn) aggregation in vitro. The compounds were found to inhibit α-syn aggregation with efficacy comparable to the promising drug candidate anle138b. The results of this study indicate that compounds 8b, 8l, and 9f may qualify as secondary leads for the structure-activity relationship studies aimed to identify the suitable compounds for improving the modulatory activity targeted at α-syn self-assembly related to Parkinson's disease.
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Affiliation(s)
- Philip Ryan
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, Queensland 4222, Australia
- Quality Use of Medicines Network, Griffith University, Gold Coast, Queensland 4222, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Mingming Xu
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Kousar Jahan
- National Institute of Pharmaceutical Education and Research (NIPER), Sahibzada Ajit Singh Nagar 160062, India
| | - Andrew K. Davey
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, Queensland 4222, Australia
- Quality Use of Medicines Network, Griffith University, Gold Coast, Queensland 4222, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Prasad V. Bharatam
- National Institute of Pharmaceutical Education and Research (NIPER), Sahibzada Ajit Singh Nagar 160062, India
| | - Shailendra Anoopkumar-Dukie
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, Queensland 4222, Australia
- Quality Use of Medicines Network, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Michael Kassiou
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - George D. Mellick
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Santosh Rudrawar
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, Queensland 4222, Australia
- Quality Use of Medicines Network, Griffith University, Gold Coast, Queensland 4222, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland 4222, Australia
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27
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Andrikopoulos N, Li Y, Cecchetto L, Nandakumar A, Da Ros T, Davis TP, Velonia K, Ke PC. Nanomaterial synthesis, an enabler of amyloidosis inhibition against human diseases. NANOSCALE 2020; 12:14422-14440. [PMID: 32638780 DOI: 10.1039/d0nr04273k] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Amyloid diseases are global epidemics with no cure currently available. In the past decade, the use of engineered nanomaterials as inhibitors or probes against the pathogenic aggregation of amyloid peptides and proteins has emerged as a new frontier in nanomedicine. In this Minireview, we summarize for the first time the pivotal role of chemical synthesis in enabling the development of this multidisciplinary field.
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Affiliation(s)
- Nicholas Andrikopoulos
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
| | - Yuhuan Li
- Zhongshan Hospital, Fudan University, 111 Yixueyuan Rd, Xuhui District, Shanghai, China and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
| | - Luca Cecchetto
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia. and Department of Chemical and Pharmaceutical Science, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Aparna Nandakumar
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
| | - Tatiana Da Ros
- Department of Chemical and Pharmaceutical Science, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia. and Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane Qld 4072, Australia.
| | - Kelly Velonia
- Department of Materials Science and Technology, University of Crete, Heraklion 70013, Greece.
| | - Pu Chun Ke
- Zhongshan Hospital, Fudan University, 111 Yixueyuan Rd, Xuhui District, Shanghai, China and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
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28
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Uddin MS, Hossain MF, Mamun AA, Shah MA, Hasana S, Bulbul IJ, Sarwar MS, Mansouri RA, Ashraf GM, Rauf A, Abdel-Daim MM, Bin-Jumah MN. Exploring the multimodal role of phytochemicals in the modulation of cellular signaling pathways to combat age-related neurodegeneration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 725:138313. [PMID: 32464743 DOI: 10.1016/j.scitotenv.2020.138313] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
Neurodegeneration is the progressive loss of neuronal structures and functions that lead to copious disorders like Alzheimer's (AD), Parkinson's (PD), Huntington's (HD), amyotrophic lateral sclerosis (ALS), and other less recurring diseases. Aging is the prime culprit for most neurodegenerative events. Moreover, the shared pathogenic factors of many neurodegenerative processes are inflammatory responses and oxidative stress (OS). Unfortunately, it is very complicated to treat neurodegeneration and there is no effective remedy. The rapid progression of the neurodegenerative diseases that exacerbate the burden and the concurrent absence of effective treatment strategies force the researchers to investigate more therapeutic approaches that ultimately target the causative factors of the neurodegeneration. Phytochemicals have great potential to exert their neuroprotective effects by targeting various mechanisms, such as OS, neuroinflammation, abnormal protein aggregation, neurotrophic factor deficiency, disruption in mitochondrial function, and apoptosis. Therefore, this review represents the molecular mechanisms of neuroprotection by multifunctional phytochemicals to combat age-linked neurodegenerative disorders.
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Affiliation(s)
- Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh; Pharmakon Neuroscience Research Network, Dhaka, Bangladesh.
| | - Md Farhad Hossain
- Pharmakon Neuroscience Research Network, Dhaka, Bangladesh; Department of Physical Therapy, Graduate School of Inje University, Gimhae, South Korea
| | - Abdullah Al Mamun
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh; Pharmakon Neuroscience Research Network, Dhaka, Bangladesh
| | - Muhammad Ajmal Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Sharifa Hasana
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh
| | | | - Md Shahid Sarwar
- Department of Pharmacy, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Rasha A Mansouri
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ghulam Md Ashraf
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Swabi, Anbar, Khyber Pakhtunkhwa, Pakistan
| | - Mohamed M Abdel-Daim
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - May N Bin-Jumah
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11474, Saudi Arabia
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29
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Park HA, Ellis AC. Dietary Antioxidants and Parkinson's Disease. Antioxidants (Basel) 2020; 9:antiox9070570. [PMID: 32630250 PMCID: PMC7402163 DOI: 10.3390/antiox9070570] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/14/2020] [Accepted: 06/26/2020] [Indexed: 12/15/2022] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative disorder caused by the depletion of dopaminergic neurons in the basal ganglia, the movement center of the brain. Approximately 60,000 people are diagnosed with PD in the United States each year. Although the direct cause of PD can vary, accumulation of oxidative stress-induced neuronal damage due to increased production of reactive oxygen species (ROS) or impaired intracellular antioxidant defenses invariably occurs at the cellular levels. Pharmaceuticals such as dopaminergic prodrugs and agonists can alleviate some of the symptoms of PD. Currently, however, there is no treatment to halt the progression of PD pathology. Due to the nature of PD, a long and progressive neurodegenerative process, strategies to prevent or delay PD pathology may be well suited to lifestyle changes like dietary modification with antioxidant-rich foods to improve intracellular redox homeostasis. In this review, we discuss cellular and genetic factors that increase oxidative stress in PD. We also discuss neuroprotective roles of dietary antioxidants including vitamin C, vitamin E, carotenoids, selenium, and polyphenols along with their potential mechanisms to alleviate PD pathology.
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30
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Kundu D, Prerna K, Chaurasia R, Bharty MK, Dubey VK. Advances in protein misfolding, amyloidosis and its correlation with human diseases. 3 Biotech 2020; 10:193. [PMID: 32269898 PMCID: PMC7128022 DOI: 10.1007/s13205-020-2166-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/11/2020] [Indexed: 12/24/2022] Open
Abstract
Protein aggregation, their mechanisms and trends in the field of neurodegenerative diseases is still far from completely being decoded. It is mainly attributed to the complexity surrounding the interaction between proteins which includes various regulatory mechanisms involved with the presentation of abnormal conditions. Although most proteins are functional in their soluble form, they have also been reported to convert themselves into insoluble aggregates under certain conditions naturally. Misfolded protein forms aggregates which are mostly unwanted by the cellular system and are mostly involved in various pathophysiologies including Alzheimer's, Type II Diabetes mellitus, Kurus's etc. Challenges lie in understanding the complex mechanism of protein misfolding and its correlation with clinical evidence. It is often understood that due to the slowness of the process and its association with ageing, timely intervention with drugs or preventive measures will play an essential role in lowering the rate of dementia causing diseases and associated ailments in the future. Today approximately more than 35 proteins have been identified capable of forming amyloids under defined conditions, and nearly all of them have been associated with disease outcomes. This review incorporates a major understanding from the history of diseases associated with protein misfolding, to the current state of neurodegenerative diseases globally, highlighting challenges in drug development and current state of research in a comprehensive manner in the field of protein misfolding diseases. There is increasing clinical association of protein misfolding with regards to amyloids compelling us to thread questions solved and further helping us design possible solutions by generating a pathway-based research on which future work in this field could be driven.
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Affiliation(s)
- Debanjan Kundu
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, UP 221005 India
| | - Kumari Prerna
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, UP 221005 India
| | - Rahul Chaurasia
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, UP 221005 India
| | - Manoj Kumar Bharty
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, UP 221005 India
| | - Vikash Kumar Dubey
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, UP 221005 India
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31
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Advances in the development of imaging probes and aggregation inhibitors for alpha-synuclein. Acta Pharmacol Sin 2020; 41:483-498. [PMID: 31586134 PMCID: PMC7470848 DOI: 10.1038/s41401-019-0304-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 08/29/2019] [Indexed: 12/20/2022] Open
Abstract
Abnormal protein aggregation has been linked to many neurodegenerative diseases, including Parkinson’s disease (PD). The main pathological hallmark of PD is the formation of Lewy bodies (LBs) and Lewy neurites, both of which contain the presynaptic protein alpha-synuclein (α-syn). Under normal conditions, native α-syn exists in a soluble unfolded state but undergoes misfolding and aggregation into toxic aggregates under pathological conditions. Toxic α-syn species, especially oligomers, can cause oxidative stress, membrane penetration, synaptic and mitochondrial dysfunction, as well as other damage, leading to neuronal death and eventually neurodegeneration. Early diagnosis and treatments targeting PD pathogenesis are urgently needed. Given its critical role in PD, α-syn is an attractive target for the development of both diagnostic tools and effective therapeutics. This review summarizes the progress toward discovering imaging probes and aggregation inhibitors for α-syn. Relevant strategies and techniques in the discovery of α-syn-targeted drugs are also discussed.
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Naskhi A, Jabbari S, Othman GQ, Aziz FM, Salihi A, Sharifi M, Sari S, Akhtari K, Abdulqadir SZ, Alasady AA, Abou-Zied OK, Hasan A, Falahati M. Vitamin K1 As A Potential Molecule For Reducing Single-Walled Carbon Nanotubes-Stimulated α-Synuclein Structural Changes And Cytotoxicity. Int J Nanomedicine 2019; 14:8433-8444. [PMID: 31749617 PMCID: PMC6818677 DOI: 10.2147/ijn.s223182] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 10/09/2019] [Indexed: 11/23/2022] Open
Abstract
Aims Different kinds of vitamins can be used as promising candidates to mitigate the structural changes of proteins and associated cytotoxicity stimulated by NPs. Therefore, the structural changes of α-syn molecules and their associated cytotoxicity in the presence of SWCNTs either alone or co-incubated with vitamin K1 were studied by spectroscopic, bioinformatical, and cellular assays. Methods Intrinsic and ThT fluorescence, CD, and Congo red absorption spectroscopic approaches as well as TEM investigation, molecular docking, and molecular dynamics were used to explore the protective effect of vitamin K1 on the structural changes of α-syn induced by SWCNTs. The cytotoxicity of α-syn/SWCNTs co-incubated with vitamin K1 against SH-SY5Y cells was also carried out by MTT, LDH, and caspase-3 assays. Results Fluorescence spectroscopy showed that vitamin K1 has a significant effect in reducing SWCNT-induced fluorescence quenching and aggregation of α- syn. CD, Congo red adsorption, and TEM investigations determined that co-incubation of α- syn with vitamin K1 inhibited the propensity of α-syn into the structural changes and amorphous aggregation in the presence of SWCNT. Docking studies determined the occupation of preferred docked site of SWCNT by vitamin K1 on α- syn conformation. A molecular dynamics study also showed that vitamin K1 reduced the structural changes of α- syn induced by SWCNT. Cellular data exhibited that the cytotoxicity of α- syn co-incubated with vitamin K1 in the presence of SWCNTs is less than the outcomes obtained in the absence of the vitamin K1. Conclusion It may be concluded that vitamin K1 decreases the propensity of α- syn aggregation in the presence of SWCNTs and induction of cytotoxicity.
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Affiliation(s)
- Amitis Naskhi
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sanaz Jabbari
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Goran Qader Othman
- Department of Medical Laboratory, Health Technical College, Erbil Polytechnic University, Erbil, Iraq
| | - Falah Mohammad Aziz
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq.,Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Soyar Sari
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Keivan Akhtari
- Department of Physics, University of Kurdistan, Sanandaj, Iran
| | - Shang Ziyad Abdulqadir
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Asaad Ab Alasady
- Anatomy, Histology, and Embryology Unit, College of Medicine, University of Duhok, Kurdistan Region, Iraq
| | - Osama K Abou-Zied
- Department of Chemistry, Faculty of Science, Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha 2713, Qatar.,Biomedical Research Center, Qatar University, Doha 2713, Qatar
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Ham S, Kim H, Hwang S, Kang H, Yun SP, Kim S, Kim D, Kwon HS, Lee YS, Cho M, Shin HM, Choi H, Chung KY, Ko HS, Lee GH, Lee Y. Cell-Based Screen Using Amyloid Mimic β23 Expression Identifies Peucedanocoumarin III as a Novel Inhibitor of α-Synuclein and Huntingtin Aggregates. Mol Cells 2019; 42:480-494. [PMID: 31250621 PMCID: PMC6602149 DOI: 10.14348/molcells.2019.0091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 05/22/2019] [Accepted: 05/28/2019] [Indexed: 01/02/2023] Open
Abstract
Aggregates of disease-causing proteins dysregulate cellular functions, thereby causing neuronal cell loss in diverse neurodegenerative diseases. Although many in vitro or in vivo studies of protein aggregate inhibitors have been performed, a therapeutic strategy to control aggregate toxicity has not been earnestly pursued, partly due to the limitations of available aggregate models. In this study, we established a tetracycline (Tet)-inducible nuclear aggregate (β23) expression model to screen potential lead compounds inhibiting β23-induced toxicity. Highthroughput screening identified several natural compounds as nuclear β23 inhibitors, including peucedanocoumarin III (PCIII). Interestingly, PCIII accelerates disaggregation and proteasomal clearance of both nuclear and cytosolic β23 aggregates and protects SH-SY5Y cells from toxicity induced by β23 expression. Of translational relevance, PCIII disassembled fibrils and enhanced clearance of cytosolic and nuclear protein aggregates in cellular models of huntingtin and α-synuclein aggregation. Moreover, cellular toxicity was diminished with PCIII treatment for polyglutamine (PolyQ)-huntingtin expression and α-synuclein expression in conjunction with 6-hydroxydopamine (6-OHDA) treatment. Importantly, PCIII not only inhibited α-synuclein aggregation but also disaggregated preformed α-synuclein fibrils in vitro . Taken together, our results suggest that a Tet-Off β23 cell model could serve as a robust platform for screening effective lead compounds inhibiting nuclear or cytosolic protein aggregates. Brain-permeable PCIII or its derivatives could be beneficial for eliminating established protein aggregates.
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Affiliation(s)
- Sangwoo Ham
- Division of Pharmacology, Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419,
Korea
| | - Hyojung Kim
- Division of Pharmacology, Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419,
Korea
| | - Seojin Hwang
- College of Pharmacy, Chosun University, Gwangju 61452,
Korea
| | - Hyunook Kang
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826,
Korea
| | - Seung Pil Yun
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205,
USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205,
USA
- Diana Helis Henry Medical Research Foundation, New Orleans, LA 70130,
USA
| | - Sangjune Kim
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205,
USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205,
USA
- Diana Helis Henry Medical Research Foundation, New Orleans, LA 70130,
USA
| | - Donghoon Kim
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205,
USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205,
USA
- Diana Helis Henry Medical Research Foundation, New Orleans, LA 70130,
USA
| | - Hyun Sook Kwon
- National Development Institute of Korean Medicine, Gyeongsan 38540,
Korea
| | - Yun-Song Lee
- Division of Pharmacology, Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419,
Korea
| | - MyoungLae Cho
- National Development Institute of Korean Medicine, Gyeongsan 38540,
Korea
| | - Heung-Mook Shin
- National Development Institute of Korean Medicine, Gyeongsan 38540,
Korea
| | - Heejung Choi
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826,
Korea
| | - Ka Young Chung
- School of Pharmacy, Sungkyunkwan University, Suwon 16419,
Korea
| | - Han Seok Ko
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205,
USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205,
USA
- Diana Helis Henry Medical Research Foundation, New Orleans, LA 70130,
USA
| | - Gum Hwa Lee
- College of Pharmacy, Chosun University, Gwangju 61452,
Korea
| | - Yunjong Lee
- Division of Pharmacology, Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419,
Korea
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Seoul 06351,
Korea
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Mohammad-Beigi H, Hosseini A, Adeli M, Ejtehadi MR, Christiansen G, Sahin C, Tu Z, Tavakol M, Dilmaghani-Marand A, Nabipour I, Farzadfar F, Otzen DE, Mahmoudi M, Hajipour MJ. Mechanistic Understanding of the Interactions between Nano-Objects with Different Surface Properties and α-Synuclein. ACS NANO 2019; 13:3243-3256. [PMID: 30810027 DOI: 10.1021/acsnano.8b08983] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Aggregation of the natively unfolded protein α-synuclein (α-syn) is key to the development of Parkinson's disease (PD). Some nanoparticles (NPs) can inhibit this process and in turn be used for treatment of PD. Using simulation strategies, we show here that α-syn self-assembly is electrostatically driven. Dimerization by head-to-head monomer contact is triggered by dipole-dipole interactions and subsequently stabilized by van der Waals interactions and hydrogen bonds. Therefore, we hypothesized that charged nano-objects could interfere with this process and thus prevent α-syn fibrillation. In our simulations, positively and negatively charged graphene sheets or superparamagnetic iron oxide NPs first interacted with α-syn's N/C terminally charged residues and then with hydrophobic residues in the non-amyloid-β component (61-95) region. In the experimental setup, we demonstrated that the charged nano-objects have the capacity not only to strongly inhibit α-syn fibrillation (both nucleation and elongation) but also to disaggregate the mature fibrils. Through the α-syn fibrillation process, the charged nano-objects induced the formation of off-pathway oligomers.
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Affiliation(s)
- Hossein Mohammad-Beigi
- Interdisciplinary Nanoscience Centre (iNANO) , Aarhus University , Gustav Wieds Vej 14 , DK-8000 Aarhus C , Denmark
| | - Atiyeh Hosseini
- Institute for Nanoscience and Nanotechnology (INST) , Sharif University of Technology , Tehran 1458889694 , Iran
- Center of Excellence in Complex Systems and Condensed Matter (CSCM) , Sharif University of Technology , Tehran 1458889694 , Iran
| | - Mohsen Adeli
- Faculty of Science , Lorestan University , Khorramabad , Iran
- Department of Biology, Chemistry, Pharmacy, Institute of Chemistry and Biochemistry , Freie University Berlin , 14195 Berlin , Germany
| | - Mohammad Reza Ejtehadi
- School of Nano Science , Institute for Research in Fundamental Sciences (IPM) , P.O. Box 19395-5531, Tehran , Iran
- Department of Physics , Sharif University of Technology , P.O. Box 11155-9161, Tehran 1245 , Iran
| | - Gunna Christiansen
- Department of Biomedicine-Medical Microbiology and Immunology , Aarhus University , 8000 Aarhus C , Denmark
| | - Cagla Sahin
- Interdisciplinary Nanoscience Centre (iNANO) , Aarhus University , Gustav Wieds Vej 14 , DK-8000 Aarhus C , Denmark
- Science for Life Laboratory, Department of Microbiology, Tumor and Cell Biology , Karolinska Institutet , Solnavägen 9 , 171 65 Stockholm , Sweden
| | - Zhaoxu Tu
- Department of Biology, Chemistry, Pharmacy, Institute of Chemistry and Biochemistry , Freie University Berlin , 14195 Berlin , Germany
| | - Mahdi Tavakol
- Department of Mechanical Engineering , Sharif University of Technology , Tehran 1245 , Iran
| | - Arezou Dilmaghani-Marand
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute , Tehran University of Medical Sciences , Tehran 1411713137 , Iran
| | - Iraj Nabipour
- Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute , Bushehr University of Medical Sciences , Bushehr 75147 , Iran
| | - Farshad Farzadfar
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute , Tehran University of Medical Sciences , Tehran 1411713137 , Iran
| | - Daniel Erik Otzen
- Interdisciplinary Nanoscience Centre (iNANO) , Aarhus University , Gustav Wieds Vej 14 , DK-8000 Aarhus C , Denmark
- Department of Molecular Biology and Genetics , Aarhus University , Gustav Wieds Vej 14 , DK-8000 Aarhus C , Denmark
| | - Morteza Mahmoudi
- Department of Anesthesiology, Brigham and Women's Hospital , Harvard Medical School , Boston , Massachusetts 02115 , United States
| | - Mohammad Javad Hajipour
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute , Tehran University of Medical Sciences , Tehran 1411713137 , Iran
- Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute , Bushehr University of Medical Sciences , Bushehr 75147 , Iran
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Fanni AM, Monge FA, Lin CY, Thapa A, Bhaskar K, Whitten DG, Chi EY. High Selectivity and Sensitivity of Oligomeric p-Phenylene Ethynylenes for Detecting Fibrillar and Prefibrillar Amyloid Protein Aggregates. ACS Chem Neurosci 2019; 10:1813-1825. [PMID: 30657326 DOI: 10.1021/acschemneuro.8b00719] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Misfolding and aggregation of amyloid proteins into fibrillar aggregates is a central pathogenic event in neurodegenerative disorders such as Alzheimer's (AD) and Parkinson's diseases (PD). Currently, there is a lack of reliable sensors for detecting the range of protein aggregates involved in disease etiology, particularly the prefibrillar aggregate conformations that are more neurotoxic. In this study, the fluorescent sensing of two novel oligomeric p-phenylene ethynylenes (OPEs), anionic OPE1- and cationic OPE2+, for detecting prefibrillar and fibrillar aggregates of AD-associated amyloid-β (Aβ40 and Aβ42) and PD-associated α-synuclein proteins (wildtype, and single mutants A30P, E35K, and A53T) over their monomeric counterparts, were tested. Furthermore, the performance of OPEs was evaluated and compared to thioflavin T (ThT), the most widely used fibril dye. Our results show that OPE1- and OPE2+ exhibited aggregate-specific binding inducing large fluorescence turn-on and spectral shifts based on a combination of backbone planarization, hydrophobic unquenching, and superluminescent OPE complex formation sensing modes. OPEs exhibited higher selectivity, higher binding affinity, and comparable limits of detection for Aβ40 fibrils compared to ThT. OPE2+ exhibited the largest fluorescence turn-on and highest sensitivity. Significantly, OPEs detected prefibrillar aggregates of Aβ42 and α-synuclein that ThT failed to detect. The superior sensing performance, the nonprotein specific detection, and the ability to selectively detect fibrillar and prefibrillar amyloid protein aggregates point to the potential of OPEs to overcome the limitations of existing probes and promise significant advancement in the detection of the myriad of protein aggregates involved in the early stages of AD and PD.
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36
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Javed H, Nagoor Meeran MF, Azimullah S, Adem A, Sadek B, Ojha SK. Plant Extracts and Phytochemicals Targeting α-Synuclein Aggregation in Parkinson's Disease Models. Front Pharmacol 2019; 9:1555. [PMID: 30941047 PMCID: PMC6433754 DOI: 10.3389/fphar.2018.01555] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 12/20/2018] [Indexed: 12/21/2022] Open
Abstract
α-Synuclein (α-syn) is a presynaptic protein that regulates the release of neurotransmitters from synaptic vesicles in the brain. α-Syn aggregates, including Lewy bodies, are features of both sporadic and familial forms of Parkinson's disease (PD). These aggregates undergo several key stages of fibrillation, oligomerization, and aggregation. Therapeutic benefits of drugs decline with disease progression and offer only symptomatic treatment. Novel therapeutic strategies are required which can either prevent or delay the progression of the disease. The link between α-syn and the etiopathogenesis and progression of PD are well-established in the literature. Studies indicate that α-syn is an important therapeutic target and inhibition of α-syn aggregation, oligomerization, and fibrillation are an important disease modification strategy. However, recent studies have shown that plant extracts and phytochemicals have neuroprotective effects on α-syn oligomerization and fibrillation by targeting different key stages of its formation. Although many reviews on the antioxidant-mediated, neuroprotective effect of plant extracts and phytochemicals on PD symptoms have been well-highlighted, the antioxidant mechanisms show limited success for translation to clinical studies. The identification of specific plant extracts and phytochemicals that target α-syn aggregation will provide selective molecules to develop new drugs for PD. The present review provides an overview of plant extracts and phytochemicals that target α-syn in PD and summarizes the observed effects and the underlying mechanisms. Furthermore, we provide a synopsis of current experimental models and techniques used to evaluate plant extracts and phytochemicals. Plant extracts and phytochemicals were found to inhibit the aggregation or fibril formation of oligomers. These also appear to direct α-syn oligomer formation into its unstructured form or promote non-toxic pathways and suggested to be valuable drug candidates for PD and related synucleinopathy. Current evidences from in vitro studies require confirmation in the in vivo studies. Further studies are needed to ascertain their potential effects and safety in preclinical studies for pharmaceutical/nutritional development of these phytochemicals or dietary inclusion of the plant extracts in PD treatment.
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Affiliation(s)
- Hayate Javed
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Mohamed Fizur Nagoor Meeran
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Sheikh Azimullah
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Abdu Adem
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Bassem Sadek
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Shreesh Kumar Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
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α-Synuclein misfolding and aggregation: Implications in Parkinson's disease pathogenesis. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2019; 1867:890-908. [PMID: 30853581 DOI: 10.1016/j.bbapap.2019.03.001] [Citation(s) in RCA: 234] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 03/03/2019] [Accepted: 03/05/2019] [Indexed: 12/21/2022]
Abstract
α-Synuclein (α-Syn) has been extensively studied for its structural and biophysical properties owing to its pathophysiological role in Parkinson's disease (PD). Lewy bodies and Lewy neurites are the pathological hallmarks of PD and contain α-Syn aggregates as their major component. It was therefore hypothesized that α-Syn aggregation is actively associated with PD pathogenesis. The central role of α-Syn aggregation in PD is further supported by the identification of point mutations in α-Syn protein associated with rare familial forms of PD. However, the correlation between aggregation propensities of α-Syn mutants and their association with PD phenotype is not straightforward. Recent evidence suggested that oligomers, formed during the initial stages of aggregation, are the potent neurotoxic species causing cell death in PD. However, the heterogeneous and unstable nature of these oligomers limit their detailed characterization. α-Syn fibrils, on the contrary, are shown to be the infectious agents and propagate in a prion-like manner. Although α-Syn is an intrinsically disordered protein, it exhibits remarkable conformational plasticity by adopting a range of structural conformations under different environmental conditions. In this review, we focus on the structural and functional aspects of α-Syn and role of potential factors that may contribute to the underlying mechanism of synucleinopathies. This information will help to identify novel targets and develop specific therapeutic strategies to combat Parkinson's and other protein aggregation related neurodegenerative diseases.
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Naoi M, Shamoto-Nagai M, Maruyama W. Neuroprotection of multifunctional phytochemicals as novel therapeutic strategy for neurodegenerative disorders: antiapoptotic and antiamyloidogenic activities by modulation of cellular signal pathways. FUTURE NEUROLOGY 2019. [DOI: 10.2217/fnl-2018-0028] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In neurodegenerative disorders, including Alzheimer's and Parkinson's disease, neuroprotection by diet and natural bioactive compounds has been proposed to prevent the onset and progress of neurodegeneration by modification of pathogenic factors. Plant food-derived phytochemicals protect neurons via targeting oxidative stress, mitochondrial dysfunction, neurotrophic factor deficit, apoptosis and abnormal protein accumulation. This review presents the molecular mechanism of neuroprotection by phytochemicals: direct regulation of mitochondrial apoptotic machinery, modification of cellular signal pathways, induction of antiapoptotic Bcl-2 protein family and prosurvival neurotrophic factors, such as brain- and glial cell line-derived neurotrophic factor, and prevention of protein aggregation. Multitargeted neuroprotective agents are under development based on the structure of blood–brain barrier-permeable phytochemicals to ameliorate brain dysfunction and prevent neurodegeneration.
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Affiliation(s)
- Makoto Naoi
- Department of Health & Nutrition, Faculty of Psychological & Physical Science, Aichi Gakuin University, Nisshin, Aichi, Japan
| | - Masayo Shamoto-Nagai
- Department of Health & Nutrition, Faculty of Psychological & Physical Science, Aichi Gakuin University, Nisshin, Aichi, Japan
| | - Wakako Maruyama
- Department of Health & Nutrition, Faculty of Psychological & Physical Science, Aichi Gakuin University, Nisshin, Aichi, Japan
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Oliveri V. Toward the discovery and development of effective modulators of α-synuclein amyloid aggregation. Eur J Med Chem 2019; 167:10-36. [PMID: 30743095 DOI: 10.1016/j.ejmech.2019.01.045] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 01/21/2019] [Accepted: 01/21/2019] [Indexed: 12/17/2022]
Abstract
A host of human diseases, including Parkinson's disease and Dementia with Lewy bodies, are suspected to be directly linked to protein aggregation. Amyloid protein aggregates and oligomeric intermediates of α-synuclein are observed in synucleinopathies and considered to be mediators of cellular toxicity. Hence, α-synuclein has seen as one of the leading and most compelling targets and is receiving a great deal of attention from researchers. Nevertheless, there is no neuroprotective approach directed toward Parkinson's disease or other synucleinopathies so far. In this review, we summarize the available data concerning inhibitors of α-synuclein aggregation and their advancing towards clinical use. The compounds are grouped according to their chemical structures, providing respective insights into their mechanism of action, pharmacology, and pharmacokinetics. Overall, shared structure-activity elements are emerging, as well as specific binding modes related to the ability of the modulators to establish hydrophobic and hydrogen bonds interactions with the protein. Some molecules with encouraging in vivo data support the possibility of translation to the clinic.
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Affiliation(s)
- Valentina Oliveri
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, viale A. Doria 6, 95125, Catania, Italy.
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40
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Bopardikar M, Bhattacharya A, Rao Kakita VM, Rachineni K, Borde LC, Choudhary S, Koti Ainavarapu SR, Hosur RV. Triphala inhibits alpha-synuclein fibrillization and their interaction study by NMR provides insights into the self-association of the protein. RSC Adv 2019; 9:28470-28477. [PMID: 35529629 PMCID: PMC9071048 DOI: 10.1039/c9ra05551g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 08/31/2019] [Indexed: 11/21/2022] Open
Abstract
The process of assembly and accumulation of the intrinsically disordered protein (IDP), alpha-synuclein (αSyn) into amyloid fibrils is a pathogenic process leading to several neurodegenerative disorders such as Parkinson's disease, multiple system atrophy and others. Although several molecules are known to inhibit αSyn fibrillization, the mechanism of inhibition is just beginning to emerge. Here, we report the inhibition of fibrillization of αSyn by Triphala, a herbal preparation in the traditional Indian medical system of Ayurveda. Triphala was found to be a rich source of polyphenols which are known to act as amyloid inhibitors. ThT fluorescence and TEM studies showed that Triphala inhibited the fibrillization of αSyn. However, it was observed that Triphala does not disaggregate preformed αSyn fibrils. Further, native-PAGE showed that Triphala reduces the propensity of αSyn to oligomerize during the lag phase of fibrillization. Our NMR results showed that certain stretches of residues in the N-terminal and NAC regions of αSyn play an anchor role in the self-association process of the protein, thereby providing mechanistic insights into the early events during αSyn fibrillization. Triphala inhibits αSyn self-association by interacting with anchoring regions which are responsible for αSyn oligomerization.![]()
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Affiliation(s)
- Mandar Bopardikar
- Department of Chemical Sciences
- Tata Institute of Fundamental Research
- Mumbai 400005
- India
| | - Anusri Bhattacharya
- UM-DAE Centre for Excellence in Basic Sciences
- University of Mumbai
- Kalina Campus
- Mumbai 400098
- India
| | - Veera Mohana Rao Kakita
- UM-DAE Centre for Excellence in Basic Sciences
- University of Mumbai
- Kalina Campus
- Mumbai 400098
- India
| | - Kavitha Rachineni
- UM-DAE Centre for Excellence in Basic Sciences
- University of Mumbai
- Kalina Campus
- Mumbai 400098
- India
| | - Lalit C. Borde
- Department of Biological Sciences
- Tata Institute of Fundamental Research
- Mumbai 400005
- India
| | - Sinjan Choudhary
- UM-DAE Centre for Excellence in Basic Sciences
- University of Mumbai
- Kalina Campus
- Mumbai 400098
- India
| | | | - Ramakrishna V. Hosur
- Department of Chemical Sciences
- Tata Institute of Fundamental Research
- Mumbai 400005
- India
- UM-DAE Centre for Excellence in Basic Sciences
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Protein Nanofibrils as Storage Forms of Peptide Drugs and Hormones. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1174:265-290. [PMID: 31713202 DOI: 10.1007/978-981-13-9791-2_8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Amyloids are highly organized cross β-sheet protein nanofibrils that are associated with both diseases and functions. Thermodynamically amyloids are stable structures as they represent the lowest free energy state that proteins can attain. However, recent studies suggest that amyloid fibrils can be dissociated by a change in environmental parameters such as pH and ionic strength. This reversibility of amyloids can not only be associated with disease, but function as well. In disease-associated amyloids, fibrils can act as reservoirs of cytotoxic oligomers. Recently, in higher organisms such as mammals, hormones were found to be stored in amyloid-like state, where these were reported to act as a reservoir of functional monomers. These hormone amyloids can dissociate to monomers upon release from the secretory granules, and subsequently bind to their respective receptors and perform their functions. In this book chapter, we describe in detail how these protein nanofibrils represent the densest possible peptide packing and are suitable for long-term storage. Thus, mimicking the feature of amyloids to release functional monomers, it is possible to formulate amyloid-based peptide/protein drugs, which can be used for sustained release.
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Joubert J. Bicyclic bis-heteroaryl derivatives as inhibitors of the α-synuclein protein: a patent evaluation of WO2018138088A1. Expert Opin Ther Pat 2018; 28:939-945. [DOI: 10.1080/13543776.2018.1541234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Jacques Joubert
- Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
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Savelieff MG, Nam G, Kang J, Lee HJ, Lee M, Lim MH. Development of Multifunctional Molecules as Potential Therapeutic Candidates for Alzheimer’s Disease, Parkinson’s Disease, and Amyotrophic Lateral Sclerosis in the Last Decade. Chem Rev 2018; 119:1221-1322. [DOI: 10.1021/acs.chemrev.8b00138] [Citation(s) in RCA: 270] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Masha G. Savelieff
- SciGency Science Communications, Ann Arbor, Michigan 48104, United States
| | - Geewoo Nam
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Juhye Kang
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hyuck Jin Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Misun Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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Jha NN, Ranganathan S, Kumar R, Mehra S, Panigrahi R, Navalkar A, Ghosh D, Kumar A, Padinhateeri R, Maji SK. Complexation of NAC-Derived Peptide Ligands with the C-Terminus of α-Synuclein Accelerates Its Aggregation. Biochemistry 2018; 57:791-804. [DOI: 10.1021/acs.biochem.7b01090] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Narendra Nath Jha
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | | | - Rakesh Kumar
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Surabhi Mehra
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Rajlaxmi Panigrahi
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Ambuja Navalkar
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Dhiman Ghosh
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Ashutosh Kumar
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | | | - Samir K. Maji
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
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Jha NN, Kumar R, Panigrahi R, Navalkar A, Ghosh D, Sahay S, Mondal M, Kumar A, Maji SK. Comparison of α-Synuclein Fibril Inhibition by Four Different Amyloid Inhibitors. ACS Chem Neurosci 2017; 8:2722-2733. [PMID: 28872299 DOI: 10.1021/acschemneuro.7b00261] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aggregation of α-synuclein (α-Syn) into toxic oligomers and fibrils leads to Parkinson's disease (PD) pathogenesis. Molecules that can inhibit the fibrillization and oligomerization of α-Syn have potential therapeutic value. Here, we studied four selective amyloid inhibitors: dopamine (Dopa), amphotericin-B (Amph), epigallocatechingallate (EGCG), and quinacrinedihydrochloride (Quin) for their effect on oligomerization, fibrillization, and preformed fibrils of α-Syn. The aggregation kinetics of α-Syn using ThT fluorescence and conformational transition by circular dichroism (CD) in the presence and absence of these four compounds suggest that, except Quin, the remaining three molecules inhibit α-Syn aggregation in a concentration dependent manner. Consistent with the aggregation kinetics data, the morphological study of aggregates formed in the presence of these compounds showed corresponding decrease in fibrillar size. The analysis of cell viability using MTT assay showed reduction in toxicity of α-Syn aggregates formed in the presence of these compounds, which also correlates with reduction of exposed hydrophobic surface as studied by ANS binding. Additionally, these inhibitors, except Quin, demonstrated reduction in size as well as the toxicity of oligomeric/fibrillar aggregates of α-Syn. The residue specific interaction to low molecular weight (LMW) species of α-Syn by 2D NMR study revealed that, the region and extent of binding are different for all these molecules. Furthermore, fibril-binding data using SPR suggested that there is no direct relationship between the binding affinity and fibril inhibition by these compounds. The present study suggests that sequence based interaction of small molecules with soluble α-Syn might dictate their inhibition or modulation capacity, which might be helpful in designing modulators of α-Syn aggregation.
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Affiliation(s)
- Narendra Nath Jha
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Rakesh Kumar
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Rajlaxmi Panigrahi
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Ambuja Navalkar
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Dhiman Ghosh
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Shruti Sahay
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Mritunjoy Mondal
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Ashutosh Kumar
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
| | - Samir. K. Maji
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai 400 076, India
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Velander P, Wu L, Henderson F, Zhang S, Bevan DR, Xu B. Natural product-based amyloid inhibitors. Biochem Pharmacol 2017; 139:40-55. [PMID: 28390938 DOI: 10.1016/j.bcp.2017.04.004] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 04/03/2017] [Indexed: 11/26/2022]
Abstract
Many chronic human diseases, including multiple neurodegenerative diseases, are associated with deleterious protein aggregates, also called protein amyloids. One common therapeutic strategy is to develop protein aggregation inhibitors that can slow down, prevent, or remodel toxic amyloids. Natural products are a major class of amyloid inhibitors, and several dozens of natural product-based amyloid inhibitors have been identified and characterized in recent years. These plant- or microorganism-extracted compounds have shown significant therapeutic potential from in vitro studies as well as in vivo animal tests. Despite the technical challenges of intrinsic disordered or partially unfolded amyloid proteins that are less amenable to characterizations by structural biology, a significant amount of research has been performed, yielding biochemical and pharmacological insights into how inhibitors function. This review aims to summarize recent progress in natural product-based amyloid inhibitors and to analyze their mechanisms of inhibition in vitro. Major classes of natural product inhibitors and how they were identified are described. Our analyses comprehensively address the molecular interactions between the inhibitors and relevant amyloidogenic proteins. These interactions are delineated at molecular and atomic levels, which include covalent, non-covalent, and metal-mediated mechanisms. In vivo animal studies and clinical trials have been summarized as an extension. To enhance natural product bioavailability in vivo, emerging work using nanocarriers for delivery has also been described. Finally, issues and challenges as well as future development of such inhibitors are envisioned.
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Affiliation(s)
- Paul Velander
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA
| | - Ling Wu
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA
| | - Frances Henderson
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA
| | - Shijun Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - David R Bevan
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; Center for Drug Discovery, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; School of Neuroscience, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA
| | - Bin Xu
- Department of Biochemistry, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; Center for Drug Discovery, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; School of Neuroscience, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA; Translational Obesity Research Center, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061, USA.
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González-Lizárraga F, Socías SB, Ávila CL, Torres-Bugeau CM, Barbosa LRS, Binolfi A, Sepúlveda-Díaz JE, Del-Bel E, Fernandez CO, Papy-Garcia D, Itri R, Raisman-Vozari R, Chehín RN. Repurposing doxycycline for synucleinopathies: remodelling of α-synuclein oligomers towards non-toxic parallel beta-sheet structured species. Sci Rep 2017; 7:41755. [PMID: 28155912 PMCID: PMC5290535 DOI: 10.1038/srep41755] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 12/14/2016] [Indexed: 12/03/2022] Open
Abstract
Synucleinophaties are progressive neurodegenerative disorders with no cure to date. An attractive strategy to tackle this problem is repurposing already tested safe drugs against novel targets. In this way, doxycycline prevents neurodegeneration in Parkinson models by modulating neuroinflammation. However, anti-inflammatory therapy per se is insufficient to account for neuroprotection. Herein we characterise novel targets of doxycycline describing the structural background supporting its effectiveness as a neuroprotector at subantibiotic doses. Our results show that doxycycline reshapes α-synuclein oligomers into off-pathway, high-molecular-weight species that do not evolve into fibrils. Off-pathway species present less hydrophobic surface than on-pathway oligomers and display different β-sheet structural arrangement. These structural changes affect the α-synuclein ability to destabilize biological membranes, cell viability, and formation of additional toxic species. Altogether, these mechanisms could act synergically giving novel targets for repurposing this drug.
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Affiliation(s)
- Florencia González-Lizárraga
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina.,Institut National De La Santé Et De La Recherche Médicale, U 1127, CNRS, Unité Mixte De Recherche (UMR) 7225, Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, Institut Du Cerveau Et De La Moelle Epinière, ICM, Paris, France
| | - Sergio B Socías
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina
| | - César L Ávila
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina
| | - Clarisa M Torres-Bugeau
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina
| | - Leandro R S Barbosa
- Instituto de Física da Universidade de São Paulo - IFUSP, Rua do Matão, Travessa R, 187, São Paulo, Brazil
| | - Andres Binolfi
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK Rosario, Argentina
| | - Julia E Sepúlveda-Díaz
- Institut National De La Santé Et De La Recherche Médicale, U 1127, CNRS, Unité Mixte De Recherche (UMR) 7225, Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, Institut Du Cerveau Et De La Moelle Epinière, ICM, Paris, France
| | - Elaine Del-Bel
- Department of Morphology, Physiology and Stomatology, Faculty of Odontology of Ribeirão Preto, University of São Paulo, Brazil, Center of Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, Brazil
| | - Claudio O Fernandez
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC) and Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Ocampo y Esmeralda, S2002LRK Rosario, Argentina
| | - Dulce Papy-Garcia
- Laboratoire Croissance, Réparation et Régénération Tissulaires (CRRET), CNRS ERL 9215, Université Paris Est Créteil, Université Paris Est, F-94000, Créteil, France
| | - Rosangela Itri
- Instituto de Física da Universidade de São Paulo - IFUSP, Rua do Matão, Travessa R, 187, São Paulo, Brazil
| | - Rita Raisman-Vozari
- Institut National De La Santé Et De La Recherche Médicale, U 1127, CNRS, Unité Mixte De Recherche (UMR) 7225, Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, Institut Du Cerveau Et De La Moelle Epinière, ICM, Paris, France
| | - Rosana N Chehín
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CCT-Tucumán and Instituto de Química Biológica Dr Bernabé Bloj (CONICET-UNT), Chacabuco 461 (T4000ILI) Tucumán, Argentina
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Giacomelli C, Daniele S, Martini C. Potential biomarkers and novel pharmacological targets in protein aggregation-related neurodegenerative diseases. Biochem Pharmacol 2017; 131:1-15. [PMID: 28159621 DOI: 10.1016/j.bcp.2017.01.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 01/26/2017] [Indexed: 10/20/2022]
Abstract
The aggregation of specific proteins plays a pivotal role in the etiopathogenesis of several neurodegenerative diseases (NDs). β-Amyloid (Aβ) peptide-containing plaques and intraneuronal neurofibrillary tangles composed of hyperphosphorylated protein tau are the two main neuropathological lesions in Alzheimer's disease. Meanwhile, Parkinson's disease is defined by the presence of intraneuronal inclusions (Lewy bodies), in which α-synuclein (α-syn) has been identified as a major protein component. The current literature provides considerable insights into the mechanisms underlying oligomeric-related neurodegeneration, as well as the relationship between protein aggregation and ND, thus facilitating the development of novel putative biomarkers and/or pharmacological targets. Recently, α-syn, tau and Aβ have been shown to interact each other or with other "pathological proteins" to form toxic heteroaggregates. These latest findings are overcoming the concept that each neurodegenerative disease is related to the misfolding of a single specific protein. In this review, potential opportunities and pharmacological approaches targeting α-syn, tau and Aβ and their oligomeric forms are highlighted with examples from recent studies. Protein aggregation as a biomarker of NDs, in both the brain and peripheral fluids, is deeply explored. Finally, the relationship between biomarker establishment and assessment and their use as diagnostics or therapeutic targets are discussed.
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Affiliation(s)
- Chiara Giacomelli
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Simona Daniele
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Claudia Martini
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy.
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