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Mari M, Boniburini M, Tosato M, Rigamonti L, Cuoghi L, Belluti S, Imbriano C, Avino G, Asti M, Ferrari E. Development of Stable Amino-Pyrimidine-Curcumin Analogs: Synthesis, Equilibria in Solution, and Potential Anti-Proliferative Activity. Int J Mol Sci 2023; 24:13963. [PMID: 37762266 PMCID: PMC10531168 DOI: 10.3390/ijms241813963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/29/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
With the clear need for better cancer treatment, naturally occurring molecules represent a powerful inspiration. Recently, curcumin has attracted attention for its pleiotropic anticancer activity in vitro, especially against colorectal and prostate cancer cells. Unfortunately, these encouraging results were disappointing in vivo due to curcumin's low stability and poor bioavailability. To overcome these issues, herein, the synthesis of eight new pyrimidine-curcumin derivatives is reported. The compounds were fully characterized (1H/13C NMR (Nuclear Magnetic Resonance), LC-MS (Liquid Chromatography-Mass Spectrometri), UV-Vis spectroscopy), particularly their acid/base behavior; overall protonation constants were estimated, and species distribution, as a function of pH, was predicted, suggesting that all the compounds are in their neutral form at pH 7.4. All the compounds were extremely stable in simulated physiological media (phosphate-buffered saline and simulated plasma). The compounds were tested in vitro (48 h incubation treatment) to assess their effect on cell viability in prostate cancer (LNCaP and PC3) and colorectal cancer (HT29 and HCT116) cell lines. Two compounds showed the same anti-proliferative activity as curcumin against HCT116 cells and improved cytotoxicity against PC3 cells.
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Affiliation(s)
- Matteo Mari
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy; (M.M.); (M.B.); (M.T.); (L.R.)
| | - Matteo Boniburini
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy; (M.M.); (M.B.); (M.T.); (L.R.)
| | - Marianna Tosato
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy; (M.M.); (M.B.); (M.T.); (L.R.)
- Radiopharmaceutical Chemistry Section, Nuclear Medicine Unit, Azienda USL-IRCCS Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy;
| | - Luca Rigamonti
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy; (M.M.); (M.B.); (M.T.); (L.R.)
| | - Laura Cuoghi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 213/d, 41125 Modena, Italy; (L.C.); (S.B.); (C.I.)
| | - Silvia Belluti
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 213/d, 41125 Modena, Italy; (L.C.); (S.B.); (C.I.)
| | - Carol Imbriano
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 213/d, 41125 Modena, Italy; (L.C.); (S.B.); (C.I.)
| | - Giulia Avino
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy; (M.M.); (M.B.); (M.T.); (L.R.)
| | - Mattia Asti
- Radiopharmaceutical Chemistry Section, Nuclear Medicine Unit, Azienda USL-IRCCS Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy;
| | - Erika Ferrari
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy; (M.M.); (M.B.); (M.T.); (L.R.)
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Gupta S, Dasmahapatra AK. Lycopene destabilizes preformed Aβ fibrils: Mechanistic insights from all-atom molecular dynamics simulation. Comput Biol Chem 2023; 105:107903. [PMID: 37320982 DOI: 10.1016/j.compbiolchem.2023.107903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/17/2023]
Abstract
The therapeutic strategy employing destabilization of the preformed Aβ fibril by various natural compounds, as studied by experimental and computational methods, has been reported significant in curing Alzheimer's disease (AD). However, lycopene (a carotenoid), from terpenes family, needs investigation for its destabilization potential of Aβ fibril. The highest antioxidant potential and ability to cross blood brain barrier makes lycopene a preferred choice as drug lead for treating AD. The current study focuses on investigating the destabilization potential and underpinning mechanism of lycopene on different polymorphic forms of Aβ fibril via Molecular Dynamics (MD) simulation. The key findings highlight binding of lycopene to the outer surface of the chain F of the fibril (2NAO). Herein G9, K16 and V18 residues were found to be involved in van der Waals with the methyl groups of the lycopene. Additionally, Y10 and F20 residues were observed to interact via π-π interactions with CC bonds of the lycopene. The surface mediated binding of lycopene to the fibril is attributed to the large size and structural rigidity of lycopene along with the bulky size of 2NAO and narrow space of fibrillar cavity. The destabilization of the fibril is evident by breakage of inherent H-bonds and hydrophobic interactions in the presence of one lycopene molecule. The lesser β-sheet content explains disorganization of the fibril and bars the higher order aggregation curbing neurotoxicity of the fibril. The higher concentration of the lycopene is not found to be linearly correlated with the extent of destabilization of the fibril. Lycopene is also observed to destabilize the other polymorphic form of Aβ fibril (2BEG), by accessing the fibrillar cavity and lowering the β-sheet content. The destabilization observed by lycopene on two major polymorphs of Aβ fibril explains its potency towards developing an effective therapeutic approach in treating AD.
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Affiliation(s)
- Shivani Gupta
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Ashok Kumar Dasmahapatra
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India; Center for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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Tvrdoňová M, Borovská B, Salayová A, Rončák R, Michalčin P, Bednáriková Z, Gažová Z. Design and synthesis of novel carbohydrate-amino acid hybrids and their antioxidant and anti-β-amyloid aggregation activity. Bioorg Chem 2023; 137:106636. [PMID: 37290376 DOI: 10.1016/j.bioorg.2023.106636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/10/2023]
Abstract
Herein we report the synthesis of new furanoid sugar amino acids and thioureas, prepared by coupling aromatic amino acids and dipeptides with isothiocyanato- functionalized ribofuranose ring. Since carbohydrate-derived structures possess many biological activities, synthesized compounds were evaluated as anti-amyloid and antioxidant agents. The anti-amyloid activity of the studied compounds was evaluated based on their potential to destroy amyloid fibrils of intrinsically disordered Aβ40 peptide and globular hen egg-white (HEW) lysozyme. The destructive efficiency of the compounds differed between the studied peptides. While the destruction activity of the compounds on the HEW lysozyme amyloid fibrils was negligible, the effect on Aβ40 amyloid fibrils was significantly higher. Furanoid sugar α-amino acid 1 and its dipeptide derivatives 8 (Trp-Trp) and 11 (Trp-Tyr) were the most potent anti-Aβ fibrils compounds. The antioxidant properties of synthesized compounds were estimated by three complementary in vitro assays (DPPH, ABTS, and FRAP). The ABTS assay was the most sensitive for assessing the radical scavenging activity of all tested compounds compared to the DPPH test. Significant antioxidant activity was detected for compounds in the group of aromatic amino acids depending on the present amino acid, with the highest activity in the case of dipeptides 11 and 12 containing the Tyr and Trp moiety. Regarding the FRAP assay, the best reducing antioxidant potential revealed Trp-containing compounds 5, 10, and 12.
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Affiliation(s)
- Monika Tvrdoňová
- Department of Organic Chemistry, Institute of Chemical Sciences, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia.
| | - Barbora Borovská
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
| | - Aneta Salayová
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
| | - Róbert Rončák
- Department of Organic Chemistry, Institute of Chemical Sciences, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia
| | - Peter Michalčin
- Department of Organic Chemistry, Institute of Chemical Sciences, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia
| | - Zuzana Bednáriková
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
| | - Zuzana Gažová
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
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Gupta S, Dasmahapatra AK. Enhanced stability of a disaggregated Aβ fibril on removal of ligand inhibits refibrillation: An all atom Molecular Dynamics simulation study. Int J Biol Macromol 2023; 240:124481. [PMID: 37076062 DOI: 10.1016/j.ijbiomac.2023.124481] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/21/2023]
Abstract
The extraneuronally deposited senile plaques, composed of neurotoxic aggregates of Aβ fibril, define Alzheimer's disease (AD). Natural compounds have been tested for their destabilization potential on Aβ fibril, thereby curing AD. However, the resultant destabilized Aβ fibril, needs to be checked for its irreversibility to the native organized state after removal of the ligand. Herein, we assessed the stability of a destabilized fibril after the ligand (ellagic acid represented as REF) is removed from the complex. The study has been conducted via Molecular Dynamics (MD) simulation of 1 μs for both Aβ-Water (control) and Aβ-REF″ (test or REF removed) system. The increased value of RMSD, Rg, SASA, lower β-sheet content and reduced number of H-bonds explains enhanced destabilization observed in Aβ-REF″ system. The increased inter-chain distance demonstrates breaking of the residual contacts, testifying the drift of terminal chains from the pentamer. The increased SASA along with the ∆Gps(polar solvation energy) accounts for the reduced interaction amongst residues, and more with solvent molecules, governing irreversibility to native state. The higher Gibb's free energy of the misaligned structure of Aβ-REF″ ensures irreversibility to the organized structure due to its inability to cross such high energy barrier. The observed stability of the disaggregated structure, despite ligand elimination, establishes the effectiveness of the destabilization technique as a promising therapeutic approach towards treating AD.
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Affiliation(s)
- Shivani Gupta
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Ashok Kumar Dasmahapatra
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India; Center for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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5
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Gupta S, Dasmahapatra AK. Destabilization of Aβ fibrils by omega-3 polyunsaturated fatty acids: a molecular dynamics study. J Biomol Struct Dyn 2023; 41:581-598. [PMID: 34856889 DOI: 10.1080/07391102.2021.2009915] [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: 01/04/2023]
Abstract
The senile plaques of neurotoxic aggregates of Aβ protein, deposited extraneuronally, mark the pathological hallmark of Alzheimer's disease (AD). The natural compounds such as omega-3 (ω-3) polyunsaturated fatty acids (PUFAs), which can access blood-brain barrier, are believed to be potential disruptors of preformed Aβ fibrils to cure AD with unknown mechanism. Herein, we present the destabilization potential of three ω-3 PUFAs, viz. Eicosapentaenoic acid (EPA), Docosahexaenoic acid (HXA), and α-linolenic acid (LNL) by molecular dynamics simulation. After an initial testing of 300 ns, EPA and HXA have been considered further for extended production run time, 500 ns. The increased value of root mean square deviation (RMSD), radius of gyration, and solvent-accessible surface area (SASA), the reduced number of H-bonds and β-sheet content, and disruption of salt bridges and hydrophobic contacts establish the binding of these ligands to Aβ fibril leading to destabilization. The polar head was found to interact with positively charged lysine (K28) residue in the fibril. However, the hydrophobicity of the long aliphatic tail competes with the intrinsic hydrophobic interactions of Aβ fibril. This amphiphilic nature of EPA and HXA led to the breaking of inherent hydrophobic contacts and formation of new bonds between the tail of PUFA and hydrophobic residues of Aβ fibril, leading to the destabilization of fibril. The Molecular Mechanics Poisson-Boltzmann Surface Area (MM-PBSA) results explain the binding of EPA and HXA to Aβ fibril by interacting with different residues. The destabilization potential of EPA and HXA establishes them as promising drug leads to cure AD, and encourages prospecting of other fatty acids for therapeutic intervention in AD.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shivani Gupta
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Ashok Kumar Dasmahapatra
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India.,Center for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam, India
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6
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Gao X, Wang S, Dong J, Li J, Zhang Y, Wu Y, Ba X. Effect of mono- and diketone group in curcumin analogues on amyloid fibrillation of hen egg white lysozyme. Biophys Chem 2023; 292:106913. [PMID: 36330890 DOI: 10.1016/j.bpc.2022.106913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/23/2022] [Accepted: 10/18/2022] [Indexed: 11/07/2022]
Abstract
Curcumin has attracted more attention because of its inhibition efficacy on protein amyloid fibrillation. However, the inhibition mechanism was still ambiguous and the clinical application of curcumin was greatly limited because of its poor stability at physiological conditions for the presence of β-diketone moiety. In this paper, a new mono-ketone-containing curcumin analogue (MDHC) was designed and synthesized to realize the possible inhibition mechanism and unveil the important role of β-diketone moiety of curcumin in the inhibition process of amyloid fibrillation using hen egg white lysozyme (HEWL) as model protein. Although all experiment results (ThT, CR, ANS and TEM) showed that the inhibitory capacity of curcumin was better than MDHC, MDHC still could show obvious inhibition effect. Molecular docking showed that both curcumin and MDHC could bind with HEWL by hydrogen bond of phenloic hydroxyl and the binding energy of MDHC was higher than that of curcumin. All the findings inferred that β-diketone group was one of great important groups in the inhibition process of HEWL amyloid fibrillation, which provided more room to construct novel inhibition reagents.
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Affiliation(s)
- Xuejiao Gao
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China
| | - Sujuan Wang
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China.
| | - Jiawei Dong
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China
| | - Jie Li
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China
| | - Yuangong Zhang
- School of Basic Medical Sciences, Hebei University, Baoding 071002, PR China
| | - Yuxia Wu
- Department of Computer Teaching, Hebei University, Baoding 071002, PR China
| | - Xinwu Ba
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China; Affiliated Hospital of Hebei University, Baoding 071000, PR China
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Dias Viegas FP, Gontijo VS, de Freitas Silva M, Cristancho Ortiz CJ, Franco GDRR, Ernesto JT, Damasio CM, Fernandes Silva IM, Campos TG, Viegas C. Curcumin, Resveratrol and Cannabidiol as Natural Key Prototypes in Drug Design for Neuroprotective Agents. Curr Neuropharmacol 2022; 20:1297-1328. [PMID: 34825873 PMCID: PMC9881080 DOI: 10.2174/1570159x19666210712152532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/28/2021] [Accepted: 07/03/2021] [Indexed: 11/22/2022] Open
Abstract
Nowadays, neurodegenerative diseases (NDs), such as Parkinson's disease (PD), Alzheimer's disease (AD), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS), represent a great challenge in different scientific fields, such as neuropharmacology, medicinal chemistry, molecular biology and medicine, as all these pathologies remain incurable, with high socioeconomic impacts and high costs for governmental health services. Due to their severity and multifactorial pathophysiological complexity, the available approved drugs for clinic have not yet shown adequate effectiveness and exhibited very restricted options in the therapeutic arsenal; this highlights the need for continued drug discovery efforts in the academia and industry. In this context, natural products, such as curcumin (1), resveratrol (2) and cannabidiol (CBD, 3) have been recognized as important sources, with promising chemical entities, prototype models and starting materials for medicinal organic chemistry, as their molecular architecture, multifunctional properties and single chemical diversity could facilitate the discovery, optimization and development of innovative drug candidates with improved pharmacodynamics and pharmacokinetics compared to the known drugs and, perhaps, provide a chance for discovering novel effective drugs to combat NDs. In this review, we report the most recent efforts of medicinal chemists worldwide devoted to the exploration of curcumin (1), resveratrol (2) and cannabidiol (CBD, 3) as starting materials or privileged scaffolds in the design of multi-target directed ligands (MTDLs) with potential therapeutic properties against NDs, which have been published in the scientific literature during the last 10 years of research and are available in PubMed, SCOPUS and Web of Science databases.
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Affiliation(s)
- Flávia P. Dias Viegas
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil; ,Programa de Pós-Graduação em Química, Federal University of Alfenas, 37133-840, Alfenas, Brazil
| | - Vanessa Silva Gontijo
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil; ,Programa de Pós-Graduação em Ciências Farmacêuticas, Federal University of Alfenas, Alfenas, 37133-840, Brazil;
| | - Matheus de Freitas Silva
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil; ,Programa de Pós-Graduação em Química, Federal University of Alfenas, 37133-840, Alfenas, Brazil
| | - Cindy Juliet Cristancho Ortiz
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil; ,Programa de Pós-Graduação em Química, Federal University of Alfenas, 37133-840, Alfenas, Brazil
| | - Graziella dos Reis Rosa Franco
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil; ,Programa de Pós-Graduação em Química, Federal University of Alfenas, 37133-840, Alfenas, Brazil
| | - Januário Tomás Ernesto
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil; ,Programa de Pós-Graduação em Ciências Farmacêuticas, Federal University of Alfenas, Alfenas, 37133-840, Brazil;
| | - Caio Miranda Damasio
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil;
| | - Isabela Marie Fernandes Silva
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil;
| | - Thâmara Gaspar Campos
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil;
| | - Claudio Viegas
- PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, Alfenas, 37133-840, Brazil; ,Programa de Pós-Graduação em Ciências Farmacêuticas, Federal University of Alfenas, Alfenas, 37133-840, Brazil; ,Programa de Pós-Graduação em Química, Federal University of Alfenas, 37133-840, Alfenas, Brazil,Address correspondence to this author at the PeQuiM - Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil; Tel: +55 35 37011880; E-mail:
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8
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Stepanova VA, Guerrero A, Schull C, Christensen J, Trudeau C, Cook J, Wolmutt K, Blochwitz J, Ismail A, West JK, Wheaton AM, Guzei IA, Yao B, Kubatova A. Hybrid Synthetic and Computational Study of an Optimized, Solvent-Free Approach to Curcuminoids. ACS OMEGA 2022; 7:7257-7277. [PMID: 35252716 PMCID: PMC8892666 DOI: 10.1021/acsomega.1c07006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
A green and optimized protocol has been developed for the preparation of symmetric 1,7-bis(aryl)-1,6-heptadiene-3,5-diones and asymmetric 2-aryl-6-arylidenecyclohexanones with modified substrate scope and good functional group tolerance. Syntheses proceed smoothly under solvent-free conditions, providing moderate to excellent product yields with a minimal workup procedure. Control experiments, spectroscopic, and computational studies support a mechanism involving the boron-assisted in situ generation of imine intermediates. Crystal structures of three curcuminoids and isolated mechanistic intermediates are reported. The data provide insight for the further development of solvent-free protocols toward diverse curcumin derivatives in the fields of pharmaceutical and synthetic chemistries.
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Affiliation(s)
- Valeria A. Stepanova
- Department
of Chemistry and Biochemistry, University
of Wisconsin La Crosse, 1725 State Street, La Crosse, Wisconsin 54601, United States
| | - Andres Guerrero
- Department
of Chemistry and Biochemistry, University
of Wisconsin La Crosse, 1725 State Street, La Crosse, Wisconsin 54601, United States
| | - Cullen Schull
- Department
of Chemistry and Biochemistry, University
of Wisconsin La Crosse, 1725 State Street, La Crosse, Wisconsin 54601, United States
| | - Joshua Christensen
- Department
of Chemistry and Biochemistry, University
of Wisconsin La Crosse, 1725 State Street, La Crosse, Wisconsin 54601, United States
| | - Claire Trudeau
- Department
of Chemistry and Biochemistry, University
of Wisconsin La Crosse, 1725 State Street, La Crosse, Wisconsin 54601, United States
| | - Joshua Cook
- Department
of Chemistry and Biochemistry, University
of Wisconsin La Crosse, 1725 State Street, La Crosse, Wisconsin 54601, United States
| | - Kyle Wolmutt
- Department
of Chemistry and Biochemistry, University
of Wisconsin La Crosse, 1725 State Street, La Crosse, Wisconsin 54601, United States
| | - Jordan Blochwitz
- Department
of Chemistry and Biochemistry, University
of Wisconsin La Crosse, 1725 State Street, La Crosse, Wisconsin 54601, United States
| | - Abdelrahman Ismail
- Department
of Chemistry and Biochemistry, University
of Wisconsin La Crosse, 1725 State Street, La Crosse, Wisconsin 54601, United States
| | - Joseph K. West
- Department
of Chemistry, Winona State University, 175 West Mark Street, Winona, Minnesota 55987, United States
| | - Amelia M. Wheaton
- Department
of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Ilia A. Guzei
- Department
of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Bin Yao
- Department
of Chemistry, University of North Dakota, 151 Cornell Street, Grand Forks, North Dakota 58202, United States
| | - Alena Kubatova
- Department
of Chemistry, University of North Dakota, 151 Cornell Street, Grand Forks, North Dakota 58202, United States
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A State of the Art of Antioxidant Properties of Curcuminoids in Neurodegenerative Diseases. Int J Mol Sci 2021; 22:ijms22063168. [PMID: 33804658 PMCID: PMC8003642 DOI: 10.3390/ijms22063168] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 01/07/2023] Open
Abstract
Neurodegenerative diseases represent a set of pathologies characterized by an irreversible and progressive, and a loss of neuronal cells in specific areas of the brain. Oxidative phosphorylation is a source of energy production by which many cells, such as the neuronal cells, meet their energy needs. Dysregulations of oxidative phosphorylation induce oxidative stress, which plays a key role in the onset of neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS). To date, for most neurodegenerative diseases, there are no resolute treatments, but only interventions capable of alleviating the symptoms or slowing the course of the disease. Therefore, effective neuroprotection strategies are needed. In recent years, natural products, such as curcuminoids, have been intensively explored and studied for their therapeutic potentials in several neurodegenerative diseases. Curcuminoids are, nutraceutical compouns, that owen several therapeutic properties such as anti-oxidant, anti-inflammatory and neuroprotective effects. In this context, the aim of this review was to provide an overview of preclinical and clinical evidence aimed to illustrate the antioxidant effects of curcuminoids in neurodegenerative diseases. Promising results from preclinical studies encourage the use of curcuminoids for neurodegeneration prevention and treatment.
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Rodrigues FC, Kumar NA, Thakur G. The potency of heterocyclic curcumin analogues: An evidence-based review. Pharmacol Res 2021; 166:105489. [PMID: 33588007 DOI: 10.1016/j.phrs.2021.105489] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/07/2021] [Accepted: 02/09/2021] [Indexed: 12/29/2022]
Abstract
Curcumin, a potent phytochemical, has been a significant lead compound and has been extensively investigated for its multiple bioactivities. Owing to its natural origin, non-toxic, safe, and pleiotropic behavior, it has been extensively explored. However, several limitations such as its poor stability, bioavailability, and fast metabolism prove to be a constraint to achieve its full therapeutic potential. Many approaches have been adopted to improve its profile, amongst which, structural modifications have indicated promising results. Its symmetric structure and simple chemistry have prompted organic and medicinal chemists to manipulate its arrangement and study its implications on the corresponding activity. One such recurring and favorable modification is at the diketo moiety with the aim to achieve isoxazole and pyrazole analogues of curcumin. A modification at this site is not only simple to achieve, but also has indicated a superior activity consistently. This review is a comprehensive and wide-ranged report of the different methods adopted to achieve several cyclized curcumin analogues along with the improvement in the efficacy of the corresponding activities observed.
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Affiliation(s)
- Fiona C Rodrigues
- Department of Biomedical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576 104, India
| | - Nv Anil Kumar
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576 104, India
| | - Goutam Thakur
- Department of Biomedical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576 104, India.
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11
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Curcumin as Scaffold for Drug Discovery against Neurodegenerative Diseases. Biomedicines 2021; 9:biomedicines9020173. [PMID: 33572457 PMCID: PMC7916200 DOI: 10.3390/biomedicines9020173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/02/2021] [Accepted: 02/08/2021] [Indexed: 02/06/2023] Open
Abstract
Neurodegenerative diseases (NDs) are one of major public health problems and their impact is continuously growing. Curcumin has been proposed for the treatment of several of these pathologies, such as Alzheimer's disease (AD) and Parkinson's disease (PD) due to the ability of this molecule to reduce inflammation and aggregation of involved proteins. Nevertheless, the poor metabolic stability and bioavailability of curcumin reduce the possibilities of its practical use. For these reasons, many curcumin derivatives were synthetized in order to overcome some limitations. In this review will be highlighted recent results on modification of curcumin scaffold in the search of new effective therapeutic agents against NDs, with particular emphasis on AD.
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12
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Kaur A, Goyal D, Goyal B. An α-helix mimetic oligopyridylamide, ADH-31, modulates Aβ 42 monomer aggregation and destabilizes protofibril structures: insights from molecular dynamics simulations. Phys Chem Chem Phys 2020; 22:28055-28073. [PMID: 33289734 DOI: 10.1039/d0cp04672h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Alzheimer's disease (AD), an epidemic growing worldwide due to no effective medical aid available in the market, is a neurological disorder. AD is known to be directly associated with the toxicity of amyloid-β (Aβ) aggregates. In search of potent inhibitors of Aβ aggregation, Hamilton and co-workers reported an α-helix mimetic, ADH-31, which acts as a powerful antagonist of Aβ42 aggregation. To identify the key interactions between protein-ligand complexes and to gain insights into the inhibitory mechanism of ADH-31 against Aβ42 aggregation, molecular dynamics (MD) simulations were performed in the present study. The MD simulations highlighted that ADH-31 showed distinct binding capabilities with residues spanning from the N-terminal to the central hydrophobic core (CHC) region of Aβ42 and restricted the conformational transition of the helix-rich structure of Aβ42 into another form of secondary structures (coil/turn/β-sheet). Hydrophobic contacts, hydrogen bonding and π-π interaction contribute to the strong binding between ADH-31 and Aβ42 monomer. The Dictionary of Secondary Structure of Proteins (DSSP) analysis highlighted that the probability of helical content increases from 38.5% to 50.2% and the turn content reduces from 14.7% to 6.2% with almost complete loss of the β-sheet structure (4.5% to 0%) in the Aβ42 monomer + ADH-31 complex. The per-residue binding free energy analysis demonstrated that Arg5, Tyr10, His14, Gln15, Lys16, Val18, Phe19 and Lys28 residues of Aβ42 are responsible for the favourable binding free energy in Aβ42 monomer + ADH-31 complex, which is consistent with the 2D HSQC NMR of the Aβ42 monomer that depicted a change in the chemical shift of residues spanning from Glu11 to Phe20 in the presence of ADH-31. The MD simulations highlighted the prevention of sampling of amyloidogenic β-strand conformations in Aβ42 trimer in the presence of ADH-31 as well as the ability of ADH-31 to destabilize Aβ42 trimer and protofibril structures. The lower binding affinity between Aβ42 trimer chains in the presence of ADH-31 highlights the destabilization of the Aβ42 trimer structure. Overall, MD results highlighted that ADH-31 inhibited Aβ42 aggregation by constraining Aβ peptides into helical conformation and destabilized Aβ42 trimer as well as protofibril structures. The present study provides a theoretical insight into the atomic level details of the inhibitory mechanism of ADH-31 against Aβ42 aggregation as well as protofibril destabilization and could be implemented in the structure-based drug design of potent therapeutic agents for AD.
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Affiliation(s)
- Anupamjeet Kaur
- Department of Chemistry, Faculty of Basic and Applied Sciences, Sri Guru Granth Sahib World University, Fatehgarh Sahib-140406, Punjab, India.
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13
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Gontijo VS, Viegas FPD, Ortiz CJC, de Freitas Silva M, Damasio CM, Rosa MC, Campos TG, Couto DS, Tranches Dias KS, Viegas C. Molecular Hybridization as a Tool in the Design of Multi-target Directed Drug Candidates for Neurodegenerative Diseases. Curr Neuropharmacol 2020; 18:348-407. [PMID: 31631821 PMCID: PMC7457438 DOI: 10.2174/1385272823666191021124443] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/27/2019] [Accepted: 10/19/2019] [Indexed: 12/14/2022] Open
Abstract
Neurodegenerative Diseases (NDs) are progressive multifactorial neurological pathologies related to neuronal impairment and functional loss from different brain regions. Currently, no effective treatments are available for any NDs, and this lack of efficacy has been attributed to the multitude of interconnected factors involved in their pathophysiology. In the last two decades, a new approach for the rational design of new drug candidates, also called multitarget-directed ligands (MTDLs) strategy, has emerged and has been used in the design and for the development of a variety of hybrid compounds capable to act simultaneously in diverse biological targets. Based on the polypharmacology concept, this new paradigm has been thought as a more secure and effective way for modulating concomitantly two or more biochemical pathways responsible for the onset and progress of NDs, trying to overcome low therapeutical effectiveness. As a complement to our previous review article (Curr. Med. Chem. 2007, 14 (17), 1829-1852. https://doi.org/10.2174/092986707781058805), herein we aimed to cover the period from 2008 to 2019 and highlight the most recent advances of the exploitation of Molecular Hybridization (MH) as a tool in the rational design of innovative multifunctional drug candidate prototypes for the treatment of NDs, specially focused on AD, PD, HD and ALS.
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Affiliation(s)
- Vanessa Silva Gontijo
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil.,Programa de Pós-Graduação em Ciências Farmacêuticas, Federal University of Alfenas, 37133-840, Brazil
| | - Flávia P Dias Viegas
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil.,Programa de Pós-Graduação em Química, Federal University of Alfenas, 37133-840, Brazil
| | - Cindy Juliet Cristancho Ortiz
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil.,Programa de Pós-Graduação em Química, Federal University of Alfenas, 37133-840, Brazil
| | - Matheus de Freitas Silva
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil.,Programa de Pós-Graduação em Química, Federal University of Alfenas, 37133-840, Brazil
| | - Caio Miranda Damasio
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil
| | - Mayara Chagas Rosa
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil
| | - Thâmara Gaspar Campos
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil
| | - Dyecika Souza Couto
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil
| | | | - Claudio Viegas
- PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil.,Programa de Pós-Graduação em Ciências Farmacêuticas, Federal University of Alfenas, 37133-840, Brazil.,Programa de Pós-Graduação em Química, Federal University of Alfenas, 37133-840, Brazil
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14
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Tavanti F, Pedone A, Menziani MC, Alexander-Katz A. Computational Insights into the Binding of Monolayer-Capped Gold Nanoparticles onto Amyloid-β Fibrils. ACS Chem Neurosci 2020; 11:3153-3160. [PMID: 32926781 DOI: 10.1021/acschemneuro.0c00497] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Amyloids-β (Aβ) fibrils are involved in several neurodegenerative diseases. In this study, atomistic molecular dynamics simulations have been used to investigate how monolayer-protected gold nanoparticles interact with Aβ(1-40) and Aβ(1-42) fibrils. Our results show that small gold nanoparticles bind with the external side of amyloid-β fibrils that is involved in the fibrillation process. The binding affinity, studied for both kinds of fibrils as a function of the monolayer composition and the nanoparticle diameter, is modulated by hydrophobic interactions and ligand monolayer conformation. Our findings thus show that monolayer-protected nanoparticles are good candidates to prevent fibril aggregation and secondary nucleation or to deliver drugs to specific fibril regions.
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Affiliation(s)
- Francesco Tavanti
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi, 103, I-41125 Modena, Italy
- CNR-NANO Istituto Nanoscienze, Centro S3, Via Campi 213/A, I-41125 Modena, Italy
| | - Alfonso Pedone
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi, 103, I-41125 Modena, Italy
| | - Maria Cristina Menziani
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi, 103, I-41125 Modena, Italy
| | - Alfredo Alexander-Katz
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Massachusetts Avenue, 77, Cambridge, Massachusetts 02142, United States
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15
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Silva AS, Reboredo-Rodríguez P, Süntar I, Sureda A, Belwal T, Loizzo MR, Tundis R, Sobarzo-Sanchez E, Rastrelli L, Forbes-Hernandez TY, Battino M, Filosa R, Daglia M, Nabavi SF, Nabavi SM. Evaluation of the status quo of polyphenols analysis: Part I-phytochemistry, bioactivity, interactions, and industrial uses. Compr Rev Food Sci Food Saf 2020; 19:3191-3218. [PMID: 33337062 DOI: 10.1111/1541-4337.12629] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 07/11/2020] [Accepted: 07/28/2020] [Indexed: 12/12/2022]
Abstract
Phytochemicals, especially polyphenols, are gaining more attention from both the scientific community and food, pharmaceutical, and cosmetics industries due to their implications in human health. In this line, lately new applications have emerged, and of great importance is the selection of accurate and reliable analytical methods for better evaluation of the quality of the end-products, which depends on diverse process variables as well as on the matrices and on the physicochemical properties of different polyphenols. The first of a two-part review on polyphenols will address the phytochemistry and biological activities of different classes of polyphenols including flavonoids, lignans and flavanolignans, stilbenoids, tannins, curcuminoids, and coumarins. Moreover, the possible interactions of polyphenols and current and potential industrial applications of polyphenols are discussed.
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Affiliation(s)
- Ana Sanches Silva
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Vairão, Vila do Conde, Portugal.,Center for Study in Animal Science (CECA), University of Oporto, Oporto, Portugal
| | - Patricia Reboredo-Rodríguez
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, CITACA, Faculty of Science, University of Vigo - Ourense Campus, Ourense, E32004, Spain
| | - Ipek Süntar
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Antoni Sureda
- Research Group on Community Nutrition and Oxidative Stress (NUCOX), Health Research Institute of Balearic Islands (IdISBa) and CIBEROBN (Physiopathology of Obesity and Nutrition CB12/03/30038), University of Balearic Islands, Palma de Mallorca, Balearic Islands, Spain
| | - Tarun Belwal
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Monica Rosa Loizzo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Italy
| | - Rosa Tundis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Italy
| | - Eduardo Sobarzo-Sanchez
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Spain.,Instituto de Investigación e Innovación en Salud, Facultad de Ciencias de la Salud, Universidad Central de Chile, Chile
| | - Luca Rastrelli
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, Fisciano, SA, Italy.,Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, Benevento, Italy
| | - Tamara Y Forbes-Hernandez
- Nutrition and Food Science Group, Department of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, Vigo, Spain
| | - Maurizio Battino
- Nutrition and Food Science Group, Department of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, Vigo, Spain.,Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.,International Research Center for Food Nutrition & Safety, Jiangsu University, Zhengjiang, China
| | - Rosanna Filosa
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, Benevento, Italy
| | - Maria Daglia
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, Benevento, Italy.,Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Seyed Fazel Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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16
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Tavanti F, Pedone A, Menziani MC. Insights into the Effect of Curcumin and (-)-Epigallocatechin-3-Gallate on the Aggregation of Aβ(1-40) Monomers by Means of Molecular Dynamics. Int J Mol Sci 2020; 21:ijms21155462. [PMID: 32751722 PMCID: PMC7432714 DOI: 10.3390/ijms21155462] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/25/2020] [Accepted: 07/28/2020] [Indexed: 12/29/2022] Open
Abstract
In this study, we compared the effects of two well-known natural compounds on the early step of the fibrillation process of amyloid-β (1–40), responsible for the formation of plaques in the brains of patients affected by Alzheimer’s disease (AD). The use of extensive replica exchange simulations up to the µs scale allowed us to characterize the inhibition activity of (–)-epigallocatechin-3-gallate (EGCG) and curcumin (CUR) on unfolded amyloid fibrils. A reduced number of β-strands, characteristic of amyloid fibrils, and an increased distance between the amino acids that are responsible for the intra- and interprotein aggregations are observed. The central core region of the amyloid-β (Aβ(1–40)) fibril is found to have a high affinity to EGCG and CUR due to the presence of hydrophobic residues. Lastly, the free binding energy computed using the Poisson Boltzmann Surface Ares suggests that EGCG is more likely to bind to unfolded Aβ(1–40) fibrils and that this molecule can be a good candidate to develop new and more effective congeners to treat AD.
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Affiliation(s)
- Francesco Tavanti
- CNR–NANO Research Center S3, Via Campi 213/a, 41125 Modena, Italy
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy; (A.P.); (M.C.M.)
- Correspondence:
| | - Alfonso Pedone
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy; (A.P.); (M.C.M.)
| | - Maria Cristina Menziani
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy; (A.P.); (M.C.M.)
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17
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Chainoglou E, Hadjipavlou-Litina D. Curcumin in Health and Diseases: Alzheimer's Disease and Curcumin Analogues, Derivatives, and Hybrids. Int J Mol Sci 2020; 21:ijms21061975. [PMID: 32183162 PMCID: PMC7139886 DOI: 10.3390/ijms21061975] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/05/2020] [Accepted: 03/09/2020] [Indexed: 12/28/2022] Open
Abstract
Worldwide, Alzheimer’s disease (AD) is the most common neurodegenerative multifactorial disease influencing the elderly population. Nowadays, several medications, among them curcumin, are used in the treatment of AD. Curcumin, which is the principal component of Curcuma longa, has shown favorable effects forsignificantly preventing or treating AD. During the last decade, the scientific community has focused their research on the optimization of therapeutic properties and on the improvement of pharmacokinetic properties of curcumin. This review summarizes bibliographical data from 2009 to 2019 on curcumin analogues, derivatives, and hybrids, as well as their therapeutic, preventic, and diagnostic applications in AD. Recent advances in the field have revealed that the phenolic hydroxyl group could contribute to the anti-amyloidogenic activity. Phenyl methoxy groups seem to contribute to the suppression of amyloid-β peptide (Aβ42) and to the suppression of amyloid precursor protein (APP) andhydrophobic interactions have also revealed a growing role. Furthermore, flexible moieties, at the linker, are crucial for the inhibition of Aβ aggregation. The inhibitory activity of derivatives is increased with the expansion of the aromatic rings. The promising role of curcumin-based compounds in diagnostic imaging is highlighted. The keto-enol tautomerism seems to be a novel modification for the design of amyloid-binding agents. Molecular docking results, (Q)SAR, as well as in vitro and in vivo tests highlight the structures and chemical moieties that are correlated with specific activity. As a result, the knowledge gained from the existing research should lead to the design and synthesis ofinnovative and multitargetedcurcumin analogues, derivatives, or curcumin hybrids, which would be very useful drug and tools in medicine for both diagnosis and treatment of AD.
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18
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Gancar M, Ho K, Mohid SA, Thai NQ, Bednarikova Z, Nguyen HL, Bhunia A, Nepovimova E, Li MS, Gazova Z. 7-Methoxytacrine and 2-Aminobenzothiazole Heterodimers: Structure-Mechanism Relationship of Amyloid Inhibitors Based on Rational Design. ACS Chem Neurosci 2020; 11:715-729. [PMID: 32011847 DOI: 10.1021/acschemneuro.9b00419] [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: 12/21/2022] Open
Abstract
The formation and accumulation of amyloid aggregates are the phenomena that accompany amyloidoses, which are currently untreatable and include Alzheimer's and Parkinson's diseases, diabetes mellitus, non-neuropathic lysozyme systemic amyloidosis, and others. One of the very promising therapeutic approaches seems to be an inhibition of amyloid formation and/or clearance of amyloid aggregates. Small molecules have a great potential to interfere with amyloid fibrillation of peptides and polypeptides, which can be improved by connection of cyclic structures into single multicyclic molecules and their dimerization. In our study, we focused on heterodimers consisting of 7-methoxytacrine (7-MEOTA) and 2-aminobenzothiazole (BTZ) parent molecules connected by an aliphatic linker. Using in vitro and in silico methods, we investigated the ability of studied compounds to inhibit the amyloid aggregation of hen egg white lysozyme. Heterodimerization led to significant improvement of inhibitory activity compared to that of the parent molecules. The efficiency of the heterodimers varied; the most effective inhibitor contained the longest linker, eight carbons long. We suggest that binding of a heterodimer to a lysozyme blocks the interaction between the β-domain and C-helix region essential for the formation of amyloid cross-β structure. Elongation of the linker ultimately enhances the compound's ability to prevent this interaction by allowing the BTZ part of the heterodimer to bind more effectively, increasing the compound's binding affinity, and also by greater steric obstruction. This study represents an important contribution to the recent rational design of potential lead small molecules with anti-amyloid properties, and the heterodimers studied are prospective candidates for the treatment of systemic lysozyme amyloidosis and other amyloid-related diseases.
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Affiliation(s)
- Miroslav Gancar
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - Kiet Ho
- Life Science Lab, Institute of Computational Science and Technology, Quang Trung Software City, Tan Chanh Hiep Ward, District 12, Ho Chi Minh City 700000, Vietnam
| | - Sk. Abdul Mohid
- Department of Biophysics, Bose Institute, Centenary Campus, P-1/12, Ghose Bagan, CIT Road Scheme VIIM, West Bengal 700054, Kolkata, India
| | - Nguyen Quoc Thai
- Dong Thap University, 783 Pham Huu Lau Street, Ward 6, Cao Lanh City 700000, Dong Thap, Vietnam
| | - Zuzana Bednarikova
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - H. Linh Nguyen
- Life Science Lab, Institute of Computational Science and Technology, Quang Trung Software City, Tan Chanh Hiep Ward, District 12, Ho Chi Minh City 700000, Vietnam
| | - Anirban Bhunia
- Department of Biophysics, Bose Institute, Centenary Campus, P-1/12, Ghose Bagan, CIT Road Scheme VIIM, West Bengal 700054, Kolkata, India
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Mai Suan Li
- Institute of Physics, Polish Academy of Sciences, al. Lotnikow 32/46, 02-668 Warsaw, Poland
| | - Zuzana Gazova
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
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19
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Jakubowski J, Orr AA, Le DA, Tamamis P. Interactions between Curcumin Derivatives and Amyloid-β Fibrils: Insights from Molecular Dynamics Simulations. J Chem Inf Model 2020; 60:289-305. [PMID: 31809572 PMCID: PMC7732148 DOI: 10.1021/acs.jcim.9b00561] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Indexed: 12/24/2022]
Abstract
The aggregation of amyloid-β (Aβ) peptides into senile plaques is a hallmark of Alzheimer's disease (AD) and is hypothesized to be the primary cause of AD related neurodegeneration. Previous studies have shown the ability of curcumin to both inhibit the aggregation of Aβ peptides into oligomers or fibrils and reduce amyloids in vivo. Despite the promise of curcumin and its derivatives to serve as diagnostic, preventative, and potentially therapeutic AD molecules, the mechanism by which curcumin and its derivatives bind to and inhibit Aβ fibrils' formation remains elusive. Here, we investigated curcumin and a set of curcumin derivatives in complex with a hexamer peptide model of the Aβ1-42 fibril using nearly exhaustive docking, followed by multi-ns molecular dynamics simulations, to provide atomistic-detail insights into the molecules' binding and inhibitory properties. In the vast majority of the simulations, curcumin and its derivatives remain firmly bound in complex with the fibril through primarily three different principle binding modes, in which the molecules interact with residue domain 17LVFFA21, in line with previous experiments. In a small subset of these simulations, the molecules partly dissociate the outermost peptide of the Aβ1-42 fibril by disrupting β-sheets within the residue domain 12VHHQKLVFF20. A comparison between binding modes leading or not leading to partial dissociation of the outermost peptide suggests that the latter is attributed to a few subtle key structural and energetic interaction-based differences. Interestingly, partial dissociation appears to be either an outcome of high affinity interactions or a cause leading to high affinity interactions between the molecules and the fibril, which could partly serve as a compensation for the energy loss in the fibril due to partial dissociation. In conjunction with this, we suggest a potential inhibition mechanism of Αβ1-42 aggregation by the molecules, where the partially dissociated 16KLVFF20 domain of the outermost peptide could either remain unstructured or wrap around to form intramolecular interactions with the same peptide's 29GAIIG33 domain, while the molecules could additionally act as a patch against the external edge of the second outermost peptide's 16KLVFF20 domain. Thereby, individually or concurrently, these could prohibit fibril elongation.
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Affiliation(s)
| | | | - Doan A. Le
- Artie McFerrin Department
of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Phanourios Tamamis
- Artie McFerrin Department
of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
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20
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Kaur A, Shuaib S, Goyal D, Goyal B. Interactions of a multifunctional di-triazole derivative with Alzheimer's Aβ42monomer and Aβ42protofibril: a systematic molecular dynamics study. Phys Chem Chem Phys 2020; 22:1543-1556. [DOI: 10.1039/c9cp04775a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The molecular dynamics simulations results highlighted that the multi-target-directed ligand6nstabilizes the native α-helix conformation of the Aβ42monomer and induces a sizable destabilization in the Aβ42protofibril structure.
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Affiliation(s)
- Anupamjeet Kaur
- Department of Chemistry
- Faculty of Basic and Applied Sciences
- Sri Guru Granth Sahib World University
- Fatehgarh Sahib-140406
- India
| | - Suniba Shuaib
- Department of Chemistry
- Faculty of Basic and Applied Sciences
- Sri Guru Granth Sahib World University
- Fatehgarh Sahib-140406
- India
| | - Deepti Goyal
- Department of Chemistry
- Faculty of Basic and Applied Sciences
- Sri Guru Granth Sahib World University
- Fatehgarh Sahib-140406
- India
| | - Bhupesh Goyal
- School of Chemistry & Biochemistry
- Thapar Institute of Engineering & Technology
- Patiala-147004
- India
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21
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Gupta S, Dasmahapatra AK. Destabilization potential of phenolics on Aβ fibrils: mechanistic insights from molecular dynamics simulation. Phys Chem Chem Phys 2020; 22:19643-19658. [DOI: 10.1039/d0cp02459g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ellagic acid from pomegranate and walnuts is found to destabilize Aβ fibrils. It can be a potential drug to treat AD.
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Affiliation(s)
- Shivani Gupta
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - Ashok Kumar Dasmahapatra
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
- Center for Nanotechnology
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22
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Orteca G, Sinnes JP, Rubagotti S, Iori M, Capponi PC, Piel M, Rösch F, Ferrari E, Asti M. Gallium-68 and scandium-44 labelled radiotracers based on curcumin structure linked to bifunctional chelators: Synthesis and characterization of potential PET radiotracers. J Inorg Biochem 2019; 204:110954. [PMID: 31838188 DOI: 10.1016/j.jinorgbio.2019.110954] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 11/28/2019] [Accepted: 11/30/2019] [Indexed: 01/08/2023]
Abstract
Curcumin metal complexes showed widespread applications in medicine and can be exploited as a lead structure for developing new tracers for nuclear medicine application. Herein, the synthesis, chemical characterization and radiolabelling with gallium-68 and scandium-44 of two new targeting vectors based on curcumin scaffolds and linked to the chelators 1,4,7-triazacyclononane,1-glutaric acid-4,7-acetic acid (NODAGA) and 1,4-bis(carboxymethyl)-6-[bis(carboxymethyl)]amino-6-methylperhydro-1,4-diazepine (AAZTA) are reported. Synthesis of the precursors could be achieved with a 13% and 11% yield and radiolabelling generally afforded rapid incorporation under mild conditions (>95%). Stability in physiological media (~75% after 2 h in human blood for [68Ga]Ga-/[44Sc]Sc-AAZTA-PC21 and ~60% for [68Ga]Ga-NODAGA-C21, respectively) are generally enhanced if compared to the previously radiolabelled analogues. MSn fragmentation experiments showed high stability of the AAZTA-PC21 structure mainly due to the pyrazole derivatization of the curcumin keto-enol moiety and a more feasible radiolabelling was noticed both with gallium-68 and scandium-44 mainly due to the AAZTA-chelator properties. [68Ga]Ga-NODAGA-C21 showed the most favorable lipophilicity value (logD = 1.3). Due to these findings, both compounds appear to be promising candidates for the imaging of colorectal cancer, but further studies such as in vitro uptake and in vivo biodistribution experiments are needed.
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Affiliation(s)
- Giulia Orteca
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, via G. Campi 103, 41125 Modena, Italy
| | - Jean-Philippe Sinnes
- Institute of Nuclear Chemistry, Johannes Gutenberg-University of Mainz, D-55126 Mainz, Germany
| | - Sara Rubagotti
- Radiopharmaceutical Chemistry Section, Nuclear Medicine Unit, Azienda USL-IRCCS Reggio Emilia, via Amendola 2, 42122 Reggio Emilia, Italy
| | - Michele Iori
- Radiopharmaceutical Chemistry Section, Nuclear Medicine Unit, Azienda USL-IRCCS Reggio Emilia, via Amendola 2, 42122 Reggio Emilia, Italy
| | - Pier Cesare Capponi
- Radiopharmaceutical Chemistry Section, Nuclear Medicine Unit, Azienda USL-IRCCS Reggio Emilia, via Amendola 2, 42122 Reggio Emilia, Italy
| | - Markus Piel
- Institute of Nuclear Chemistry, Johannes Gutenberg-University of Mainz, D-55126 Mainz, Germany
| | - Frank Rösch
- Institute of Nuclear Chemistry, Johannes Gutenberg-University of Mainz, D-55126 Mainz, Germany
| | - Erika Ferrari
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, via G. Campi 103, 41125 Modena, Italy.
| | - Mattia Asti
- Radiopharmaceutical Chemistry Section, Nuclear Medicine Unit, Azienda USL-IRCCS Reggio Emilia, via Amendola 2, 42122 Reggio Emilia, Italy
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Gupta S, Dasmahapatra AK. Caffeine destabilizes preformed Aβ protofilaments: insights from all atom molecular dynamics simulations. Phys Chem Chem Phys 2019; 21:22067-22080. [PMID: 31565708 DOI: 10.1039/c9cp04162a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The aggregation and deposition of neurotoxic Aβ fibrils are key in the etiology of Alzheimer's disease (AD). It has been clinically recognized as a major form of dementia across the globe. Finding and testing various natural compounds to target Aβ fibrils to disrupt their stable structures seems to be a promising and attractive therapeutic strategy. The destabilization effects of caffeine on Aβ fibrils are investigated via in silico studies, where a series of molecular dynamics (MD) simulations, each of 100 ns, was conducted. The simulation outcomes obtained henceforth clearly indicated the drift of the terminal chains from the protofibrils, leading to disorganization of the characteristically organized cross-β structures of Aβ fibrils. The structural instability of Aβ17-42 protofibrils is explained through enhanced fluctuations in the RMSD, radius of gyration and RMSF values in the presence of caffeine. The key interactions providing stability, comprising D23-K28 salt bridges, intra- and inter-chain hydrogen bonding and hydrophobic interactions involving interchain A21-V36 and F19-G38 and intrachain L34-V36, were found to be disrupted due to increases in the distances between the participating components. The loss of β-sheet structure with the introduction of turns and α-helices in terminal chains may further inhibit the formation of higher order aggregates, which is necessary to stop the progression of the disease. The atomistic details obtained via MD studies relating to the mechanism behind the underlying destabilization of Aβ17-42 protofibrils by caffeine encourage further investigations exploring the potency of natural compounds to treat AD via disrupting preformed neurotoxic Aβ protofibrils.
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Affiliation(s)
- Shivani Gupta
- Department of Chemical Engineering and Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
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Blaikie L, Kay G, Kong Thoo Lin P. Current and emerging therapeutic targets of alzheimer's disease for the design of multi-target directed ligands. MEDCHEMCOMM 2019; 10:2052-2072. [PMID: 32206241 PMCID: PMC7069509 DOI: 10.1039/c9md00337a] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 10/14/2019] [Indexed: 12/22/2022]
Abstract
Alzheimer's disease (AD) is the most prevalent neurodegenerative disease, and a major cause of death worldwide. The number of people suffering from this debilitating disorder is rising at an unprecedented rate, with a subsequent surge in healthcare costs. Only four drugs are clinically available for the treatment of AD symptoms, but they are not disease-modifying. Consequently, there is an urgent need for a cure. Although the cause of this debilitating condition remains poorly understood, it is believed that several factors may be involved in combination - including, health and lifestyle, environmental, and genetic factors. In recent years, a number of hallmarks of the disease have also been discovered, and it is believed that these factors may play an important role in the development of AD. Amyloid aggregation is one such factor which has been highly investigated, in addition to cholinesterase enzymes and tau aggregation. In the last decade, multi-target drugs have been increasingly investigated for their application to AD treatment. By combining two or more pharmacophores in a single compound, it is possible to synthesise a drug which can target several factors that are involved in AD development. This is a particularly attractive approach as it would avoid the use of combination therapies. As a result, it could reduce the burden on carers and families, and decrease healthcare and social care costs. Many active pharmacophores have been employed for the development of hybrid drugs, due to their abilities to inhibit the factors currently widely recognised to be involved in AD. These compounds have demonstrated promising results; however, research is still required to optimise the pharmacological profiles of the drugs, in addition to their potencies. Meanwhile, extensive research is continuously being performed into other potential targets for the treatment of AD. Based on the results obtained thus far, it is likely that multi-target compounds will continue to be increasingly studied in the future as potential treatments for AD.
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Affiliation(s)
- Laura Blaikie
- School of Pharmacy and Life Sciences , Robert Gordon University , Aberdeen , Scotland , UK .
| | - Graeme Kay
- School of Pharmacy and Life Sciences , Robert Gordon University , Aberdeen , Scotland , UK .
| | - Paul Kong Thoo Lin
- School of Pharmacy and Life Sciences , Robert Gordon University , Aberdeen , Scotland , UK .
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Dwivedi N, Shah J, Mishra V, Tambuwala M, Kesharwani P. Nanoneuromedicine for management of neurodegenerative disorder. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.12.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Potent Anti-Cancer Properties of Phthalimide-Based Curcumin Derivatives on Prostate Tumor Cells. Int J Mol Sci 2018; 20:ijms20010028. [PMID: 30577600 PMCID: PMC6337497 DOI: 10.3390/ijms20010028] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/14/2018] [Accepted: 12/18/2018] [Indexed: 12/24/2022] Open
Abstract
Metastatic castration-resistant prostate cancer is commonly treated with chemotherapy, whose effect is less than satisfactory. This raised the need for novel agents for the treatment of prostate cancer. In the present study, five phthalimide-based curcumin derivatives were synthesized and completely characterized to assess improved stability, pharmacodynamics, and radical scavenging ability. To investigate the potential application in anti-cancer therapy, the anti-proliferative activity of the synthesized molecules was determined on aggressive prostate tumor cells. We demonstrated that the K3F21 derivative has increased potency compared to curcumin, in terms of GI50, anti-proliferative and anti-migrating activities. K3F21 inhibits anchorage-dependent and -independent growth of prostate cancer cells by altering the expression of key genes controlling cell proliferation, such as Cylins D1, B1 and B2, and apoptosis, among which Puma, Noxa, and Bcl-2 family members. Finally, the anti-cancer activity of K3F21 was demonstrated by the analysis of cancer-associated PI3K/AKT, ERK, and p38 signaling pathways.
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Giorgetti S, Greco C, Tortora P, Aprile FA. Targeting Amyloid Aggregation: An Overview of Strategies and Mechanisms. Int J Mol Sci 2018; 19:E2677. [PMID: 30205618 PMCID: PMC6164555 DOI: 10.3390/ijms19092677] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/02/2018] [Accepted: 09/05/2018] [Indexed: 12/26/2022] Open
Abstract
Amyloids result from the aggregation of a set of diverse proteins, due to either specific mutations or promoting intra- or extra-cellular conditions. Structurally, they are rich in intermolecular β-sheets and are the causative agents of several diseases, both neurodegenerative and systemic. It is believed that the most toxic species are small aggregates, referred to as oligomers, rather than the final fibrillar assemblies. Their mechanisms of toxicity are mostly mediated by aberrant interactions with the cell membranes, with resulting derangement of membrane-related functions. Much effort is being exerted in the search for natural antiamyloid agents, and/or in the development of synthetic molecules. Actually, it is well documented that the prevention of amyloid aggregation results in several cytoprotective effects. Here, we portray the state of the art in the field. Several natural compounds are effective antiamyloid agents, notably tetracyclines and polyphenols. They are generally non-specific, as documented by their partially overlapping mechanisms and the capability to interfere with the aggregation of several unrelated proteins. Among rationally designed molecules, we mention the prominent examples of β-breakers peptides, whole antibodies and fragments thereof, and the special case of drugs with contrasting transthyretin aggregation. In this framework, we stress the pivotal role of the computational approaches. When combined with biophysical methods, in several cases they have helped clarify in detail the protein/drug modes of interaction, which makes it plausible that more effective drugs will be developed in the future.
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Affiliation(s)
- Sofia Giorgetti
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Via Taramelli 3b, 27100 Pavia, Italy.
| | - Claudio Greco
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Paolo Tortora
- Department of Biotechnologies and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy.
- Milan Center for Neuroscience (Neuro-MI), 20126 Milano, Italy.
| | - Francesco Antonio Aprile
- Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK.
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